JP3856564B2

JP3856564B2 - Steel pipe pile driving device and steel pipe pile driving method

Info

Publication number: JP3856564B2
Application number: JP12127298A
Authority: JP
Inventors: 哲生長江; 憲房杉山; 文夫滝沢; 光雄川崎; 宗寛藤田; 瑞樹森
Original assignee: Shimizu Corp
Current assignee: Shimizu Corp
Priority date: 1998-04-30
Filing date: 1998-04-30
Publication date: 2006-12-13
Anticipated expiration: 2018-04-30
Also published as: JPH11310921A

Description

【０００１】
【発明の属する技術分野】
本発明は、営業路線の軌道下に地下設備を構築したり、当該軌道下地盤の補強工事を行う際に活用し得る鋼管杭打設装置とその工法に関するものである。
【０００２】
【従来の技術及びその問題点】
営業路線の軌道下に地下設備を構築したり、当該軌道下地盤の補強工事を行う場合、当該軌道内または当該軌道に隣接する側方位置に鋼管杭を打設する必要がある。従来の鋼管杭打設装置は、クローラーなどの接地用自走手段を備えた自走車両の前部に鋼管杭回転圧入装置を支持させたものであるから、踏切などの軌道上への乗り入れ可能場所と工事現場との間の鋼管杭打設装置の走行経路全域にわたって軌道に覆工版を敷設しなければならず、多大の手間と費用がかかる。
【０００３】
また、鋼管杭打設装置は、１本の鋼管杭を予め鋼管杭回転圧入装置にセットした状態で工事現場に乗り入れさせることはできるが、２本目以降は工事現場において鋼管杭を鋼管杭回転圧入装置にセットしなければならない。換言すれば、最初の１本の鋼管杭を打ち終わるまでに次の鋼管杭をトラックなどで工事現場まで搬入しておかなければ、鋼管杭打設作業を効率良く遂行させることができない。しかも、営業路線の場合は、終電から始発までの深夜に工事を行うことになるので、クレーンで鋼管杭を鋼管杭回転圧入装置に吊り込む際の玉掛け作業には危険を伴うことになり、安全性の点でも問題があった。
【０００４】
【課題を解決するための手段】
本発明は上記のような従来の問題点を解消し得る鋼管杭打設装置を提供することを目的とするものであって、その手段を後述する実施形態の参照符号を付して示すと、接地用自走手段３を備えた自走車体１に昇降可能に設けられた軌道用自走手段４と、当該自走車体１の前部に支持された鋼管杭回転圧入装置５と、鋼管杭保持手段６Ａとを備え、前記鋼管杭保持手段６Ａは、鋼管杭Ｗを支持する鋼管杭支持具４３と、当該鋼管杭支持具４３を３次元方向に移動させる駆動機構４２とから成るもので、前記鋼管杭支持具４３で支持した鋼管杭Ｗを前記鋼管杭回転圧入装置５の側方位置から当該鋼管杭回転圧入装置５にセットし得るようにしたものである。
【０００５】
上記構成の本発明の鋼管杭打設装置を実施するについて、前記鋼管杭保持手段６Ａの駆動機構４２は、前記鋼管杭回転圧入装置５の側方位置に昇降可能に設けられた昇降体４６と、この昇降体４６の前端から前方に延出し且つ水平揺動可能に支持された第一アーム４９と、この第一アーム４９の先端に水平揺動可能に支持された第二アーム５２とから構成し、当該第二アーム５２の先端に前記鋼管杭支持具４３を取り付けることができる。
【０００６】
また、前記鋼管杭保持手段６Ａの鋼管杭支持具４３は、鋼管杭Ｗの外側面に付設された被支持具５９に上向きに係合して当該鋼管杭Ｗを支持する上向きピン５６を備えたものとすることができる。さらに、前記鋼管杭保持手段は、前記鋼管杭回転圧入装置５の左右何れか片側にのみ配設することもできるが、前記鋼管杭回転圧入装置の左右両側にそれぞれ鋼管杭保持手段６Ａ，６Ｂを配設するのが望ましい。
【０００７】
また、前記鋼管杭回転圧入装置５にセットされる鋼管杭Ｗの上方に位置する架線保護用遮蔽板６３を配設することができる。この架線保護用遮蔽板６３は、前記鋼管杭回転圧入装置５にセットされる鋼管杭Ｗの真上に位置する作用位置と当該作用位置から離れた待機位置との間で移動可能に支持するのが望ましい。またこの場合、前記架線保護用遮蔽板６３は、前記鋼管杭回転圧入装置５の上端にパンタグラフリンク機構６１により、前記作用位置と当該作用位置から後方下方へ離れた待機位置との間で平行移動可能に支持させることができる。
【０００８】
さらに、前記鋼管杭回転圧入装置５を支持する軌道用台車８を着脱自在に設けることもできる。この場合、前記軌道用台車８は、前記鋼管杭回転圧入装置５の下端に着脱自在に吊り下げ可能に構成するとともに、当該鋼管杭回転圧入装置５にセットされた鋼管杭Ｗの下端が嵌合する凹入部６６を設け、この凹入部６６に下端が嵌合した鋼管杭Ｗを介して前記鋼管杭回転圧入装置５を支持するように構成することができる。
【０００９】
また、先に説明した本発明の鋼管杭打設装置を使用して鋼管杭を軌道内またはその近傍位置に打設する場合、前記鋼管杭保持手段６Ａ，６Ｂに現場で鋼管杭Ｗを補給する鋼管杭補給用クレーン車７０を使用することができるが、このクレーン車７０には、クレーンブーム７２の先端に鋼管杭把持手段７３を任意の向きに転向可能に支持させておき、前記鋼管杭回転圧入装置５にセットされた鋼管杭Ｗを打設した後、前記鋼管杭保持手段６Ａ，６Ｂが支持している鋼管杭Ｗを、当該鋼管杭保持手段６Ａ，６Ｂにより前記鋼管杭回転圧入装置５にセットして、先の打設済み鋼管杭Ｗに継ぎ足して打設作業を行い、空いた鋼管杭保持手段６Ａ，６Ｂには、前記鋼管杭補給用クレーン車７０の鋼管杭把持手段７３で把持させた鋼管杭Ｗを補給して支持させることができる。
【００１０】
上記の鋼管杭補給用クレーン車７０を利用する工法を実施する場合、前記鋼管杭補給用クレーン車７０には、前記鋼管杭把持手段７３で把持した鋼管杭Ｗを地上適当高さで鉛直姿勢にしたとき当該鋼管杭Ｗの真上に位置する架線保護用遮蔽板８９を、クレーンブーム７２の先端に設けたものとすることができる。
【００１１】
【発明の実施の形態】
以下に本発明の好適実施形態を添付図に基づいて説明すると、図１〜図３において、１は左右一対のクローラー２から成る接地用自走手段３を備えた自走車体であって、軌道用自走手段４、鋼管杭回転圧入装置５、左右一対の鋼管杭保持手段６Ａ，６Ｂ、架線保護手段７、及び着脱自在な軌道用台車８（図３）を備えている。
【００１２】
軌道用自走手段４は、自走車体１の後端に取り付けられた従動車輪ユニット９と、自走車体１の前端に取り付けられた駆動車輪ユニット１０とから成るもので、従動車輪ユニット９は、図４及び図５に示すように、自走車体１の後端に取り付けられたガイド部材１１と、当該ガイド部材１１に２本の昇降ガイド支柱１２ａ，１２ｂを介して昇降可能に支持された軸受け部材１３と、当該軸受け部材１３の両端に同心状に軸支された左右一対の従動車輪１４ａ，１４ｂと、前記ガイド部材１１と軸受け部材１３との間に介装された昇降駆動用シリンダーユニット１５とから成るもので、前記シリンダーユニット１５により軸受け部材１３を下降させることにより、図３〜図５に示すように、両車輪１４ａ，１４ｂを軌道の２本のレール１６ａ，１６ｂに係合させた状態で自走車体１を所定高さまで浮上させることができる。
【００１３】
なお、図３に示すように、従動車輪ユニット９により自走車体１を軌道（２本のレール１６ａ，１６ｂ）から所定高さまで浮上させた状態は、２本の昇降ガイド支柱１２ａ，１２ｂに設けられたピン孔１７とガイド部材１１に設けられたピン孔１８とにわたってロックピン１９を挿通させることによりロックすることができる。また、図１及び図４、図５の仮想線で示すように、シリンダーユニット１５により軸受け部材１３を上昇させて、両車輪１４ａ，１４ｂを軌道の２本のレール１６ａ，１６ｂから所定高さまで浮上させ、自走車体１の接地用自走手段３を接地させた状態は、２本の昇降ガイド支柱１２ａ，１２ｂに設けられたピン孔２０とガイド部材１１に設けられたピン孔１８とにわたってロックピン１９を挿通させることによりロックすることができる。このロックピン１９も、使用状態においてガイド部材１１にピンやボルトなどでロックできるように構成することができる。
【００１４】
駆動車輪ユニット１０は、図４、図６、及び図７に示すように、自走車体１の前端に取り付けられたブラケット２１に水平支軸２２を介して上下揺動自在に軸支された揺動フレーム２３と、この揺動フレーム２３の遊端に軸支された駆動軸２４の両端に取り付けられた左右一対の駆動車輪２５ａ，２５ｂと、前記揺動フレーム２３上に支持され且つ前記駆動軸２４とチェン伝動手段２６を介して連動連結された駆動用モーター２７と、前記揺動フレーム２３を昇降駆動する左右一対のシリンダーユニット２８とから成るもので、前記シリンダーユニット２８により揺動フレーム２３を下降させることにより、図３、図４、及び図６に示すように、両車輪２５ａ，２５ｂを軌道の２本のレール１６ａ，１６ｂに係合させた状態で自走車体１を所定高さまで浮上させることができる。逆に、前記シリンダーユニット２８により揺動フレーム２３を上昇させることにより、図１に示すように、両車輪２５ａ，２５ｂを軌道の２本のレール１６ａ，１６ｂから所定高さまで浮上させ、自走車体１の接地用自走手段３を接地させることができる。このとき、図４に示すようにブラケット２１に設けたピン孔２９に挿通したピン（図示省略）で揺動フレーム２３を支持させて、駆動車輪ユニット１０を上昇待機位置でロックすることもできる。
【００１５】
鋼管杭回転圧入装置５は、定長リンク３０と伸縮駆動可能な伸縮リンク３１、及び定長リンク３０を上下駆動するシリンダーユニット３２から成る支持手段３３を介して自走車体１の前端に支持されたリーダー３４と、このリーダー３４に設けられたガイドレール３５と当該ガイドレール３５に係合する昇降ガイド３６とを介して当該リーダー３４に昇降可能に支持され且つ圧入用シリンダーユニット３７により昇降駆動される鋼管杭回転駆動手段３８とから成り、鋼管杭回転駆動手段３８は、例えば実公平６−２９２２６号公報などにより従来周知のもので、リング状回転駆動部３９と当該回転駆動部３９に吊り下げられたリング状チャック部４０とを備え、リング状回転駆動部３９とリング状チャック部４０とにわたって垂直に挿通された鋼管杭Ｗを、前記リング状チャック部４０で把持した状態で、リング状回転駆動部３９に搭載された左右一対のモーター４１により回転駆動するものである。
【００１６】
左右一対の鋼管杭保持手段６Ａ，６Ｂは、図２に示すように、鋼管杭回転圧入装置５の左右両側に配設された左右対称構造のもので、それぞれ駆動機構４２と鋼管杭支持具４３とを備えており、駆動機構４２は、図１及び図３に示すように、鋼管杭回転圧入装置５のリーダー３４に支持された前後一対の昇降ガイドレール４４に昇降可能に支持され且つシリンダーユニット４５により昇降駆動される昇降体４６と、図８に示すように、この昇降体４６の前端から前方に延出するように垂直支軸４７により軸支され且つシリンダーユニット４８により水平揺動駆動される第一アーム４９と、この第一アーム４９の先端に垂直支軸５０により軸支され且つシリンダーユニット５１により水平揺動駆動される第二アーム５２とから構成されている。
【００１７】
前記鋼管杭支持具４３は、図８及び図９に示すように、前記駆動機構４２の第二アーム５２の先端に取り付けられたもので、前記第二アーム５２の先端に水平支軸５３で軸支され且つターンバックル付きリンク５４により所定角度に固定された基板５５と、この基板５５の前側に、当該基板５５の前面との間に適当な隙間を隔てて付設された左右一対の上向きピン５６と、当該上向きピン５６より下側で前記基板５５の裏側に水平支軸５７により自転可能に軸支され且つ周面が基板５５の前面から突出する回転ガイド板５８とから構成されている。一方、この鋼管杭支持具４３で支持される鋼管杭Ｗには、その外側面適当高さ位置に、前記左右一対の上向きピン５６が下から上向きに嵌入可能なように、パイプ材や溝形鋼などから成る一対の被支持具５９が溶接により取り付けられる。
【００１８】
架線保護手段７は、図１、図３、及び図１０に示すように、鋼管杭回転圧入装置５のリーダー３４の上端に左右一対の平行２連リンク６０ａ，６０ｂから成るパンタグラフリンク機構６１により支持したフレーム６２上に、電気絶縁材料（エボナイトなど）から成る架線保護用遮蔽板６３を水平に付設し、前記フレーム６２とリーダー３４の上端との間に介装したシリンダーユニット６４により前記架線保護用遮蔽板６３を、前記鋼管杭回転圧入装置５の鋼管杭回転駆動手段３８の真上に位置する作用位置（図１、及び図１０の仮想線で示す）と当該作用位置から後方下方に離れた待機位置（図３、及び図１０の実線で示す）との間で平行移動させることができる。パンタグラフリンク機構６１として、左右一対の平行２連リンク６０ａ，６０ｂを利用したものを例示したが、これに限定されない。
【００１９】
軌道用台車８は、図３、図４、及び図１１に示すように、軌道の２本のレール１６ａ，１６ｂに係合する左右一対、前後２組の車輪６５を備えた台車であって、その上面には、前記鋼管杭回転圧入装置５の鋼管杭回転駆動手段３８にセットされた鋼管杭Ｗの下端が嵌合する凹入部６６が設けられ、図３に示すように、前記凹入部６６に下端が嵌合した鋼管杭Ｗを介して前記鋼管杭回転圧入装置５を支持するものであり、前記鋼管杭回転圧入装置５の鋼管杭回転駆動手段３８に鋼管杭Ｗがセットされていないときは、図４に仮想線で示すように、前記鋼管杭回転駆動手段３８のリング状チャック部４０を直接支持することもできる。また、図４に仮想線で示すように、この軌道用台車８は、チェンなどの複数本の吊り具６７により前記鋼管杭回転駆動手段３８のリング状チャック部４０などに吊り下げることができる。
【００２０】
図１２及び図１３は、鋼管杭打設現場などにおいて、鋼管杭保持手段６Ａ，６Ｂや鋼管杭回転圧入装置５に対して鋼管杭Ｗをセットするときに使用し得る鋼管杭補給用クレーン車７０を示している。このクレーン車７０は、クローラーなどの接地自走手段７１と上下動及び伸縮可能なクレーンブーム７２とを備えたもので、クレーンブーム７２の先端に鋼管杭把持手段７３と架線保護手段７４とが取り付けられている。
【００２１】
図１４に示すように鋼管杭把持手段７３は、クレーンブーム７２の先端に取り付けられた基材７５に水平支軸７６により上下揺動自在に軸支され且つシリンダーユニット７７により揺動駆動される第一揺動体７８と、この第一揺動体７８に、前記水平支軸７６に対し直角向きの軸心７９の周りに揺動自在に軸支され且つシリンダーユニット８０により揺動駆動される第二揺動体８１と、この第二揺動体８１に、前記水平支軸７６及び軸心７９の両者に対し直角向きの軸心８２の周りに回転自在に軸支され且つシリンダーユニットまたは油圧モーターなど（図示省略）により回転駆動される第三回転体８３と、この第三回転体８３に開閉自在に取り付けられ且つシリンダーユニット８４により開閉駆動される一対の把持爪８５とから構成され、一対の把持爪８５で把持した鋼管杭Ｗの支持レベル及び向きを、クレーンブーム７２の上下動及び伸縮、各揺動体７８，８１の揺動駆動、及び第三回転体８３の回転駆動により、任意に変えることができる。
【００２２】
図１４に示すように架線保護手段７４は、クレーンブーム７２の先端に取り付けられた前記基材７５にスライドガイド８６を取り付け、当該スライドガイド８６にスライド可能に支持され且つシリンダーユニット８７によりスライド駆動される滑動フレーム８８上に、電気絶縁材料（エボナイトなど）から成る架線保護用遮蔽板８９を付設して成るもので、前記クレーンブーム７２を所定角度まで上動させたとき、前記架線保護用遮蔽板８９が所定高さで略水平になるように、基材７５に対してスライドガイド８６が所定角度で取り付けられ、係る状態で滑動フレーム８８をシリンダーユニット８７により進出させることにより、図１４に仮想線で示すように、前記鋼管杭把持手段７３で把持して地面上所定高さで略鉛直姿勢とした鋼管杭Ｗの上側を架線保護用遮蔽板８９で覆うことができるように構成している。
【００２３】
以上のように構成された鋼管杭打設装置を使用する鋼管杭の打設工法を、図１５〜図２２に基づいて説明すると、軌道内またはその近傍の鋼管杭打設工事現場から離れた工事基地内において、図１５に示すように鋼管杭回転圧入装置５に鋼管杭Ｗをセットする。即ち、架線保護手段７の架線保護用遮蔽板６３を、鋼管杭回転駆動手段３８の真上位置から後方下方に離れた待機位置（図３、及び図１０の実線で示す）に移動させるとともに、鋼管杭回転圧入装置５における鋼管杭回転駆動手段３８をリーダー３４に対して適当高さまで上昇させた状態で、クレーン車などを使用して鋼管杭Ｗをリング状回転部３９及びリング状チャック部４０内に吊り込み、リング状チャック部４０により当該鋼管杭Ｗを把持固定し、リング状チャック部４０より下側に突出している鋼管杭Ｗの周面に回転掘削用先端金物Ｗａを取り付ける。
【００２４】
次に、図１６に示すように、鋼管杭保持手段６Ａ，６Ｂにクレーン車などを利用してそれぞれ別の鋼管杭Ｗをセットする。即ち、各鋼管杭保持手段６Ａ，６Ｂ（図８参照）の昇降体４６の昇降駆動、第一アーム４９の水平揺動駆動、及び第二アーム５２の水平揺動駆動により、鋼管杭支持具４３を作業に最適な地上高と向きにセットした状態で、予め図９に示すように被支持具５９が溶接により取り付けられた鋼管杭Ｗをクレーン車で吊り上げて、前記被支持具５９を鋼管杭支持具４３の２本の並列上向きピン５６に外嵌させ、当該鋼管杭Ｗを各鋼管杭保持手段６Ａ，６Ｂの鋼管杭支持具４３に略鉛直姿勢で保持させる。このとき、図９Ｂに示すように、鋼管杭支持具４３の回転ガイド板５８に鋼管杭Ｗの周面を当接させながら当該鋼管杭Ｗを下降させることにより、前記被支持具５９を鋼管杭支持具４３の２本の並列上向きピン５６に容易に外嵌させることができる。
【００２５】
この後、図１７に示すように、軌道用台車８を鋼管杭回転圧入装置５の下端にセットする。即ち、鋼管杭回転駆動手段３８にセットされ且つリング状チャック部４０により固定された先端金物付き鋼管杭Ｗを、リーダー３４に対する鋼管杭回転駆動手段３８の上昇または自走車体１に対する鋼管杭回転圧入装置５の上昇若しくはその両方により、地上適当高さまで浮上させ、クレーン車などにより吊り上げた軌道用台車８を前記先端金物付き鋼管杭Ｗの下端真下に配置する。そして鋼管杭回転駆動手段３８を対地下降させて先端金物付き鋼管杭Ｗの下端を軌道用台車８の凹入部６６内に嵌合させ、チェンなどの吊り具６７により当該軌道用台車８と鋼管杭回転駆動手段３８（リング状チャック部４０）とを連結する。
【００２６】
なお、以上の作業は、図１５〜図１７に示すように、軌道用自走手段４の従動車輪ユニット９と駆動車輪ユニット１０とを対地浮上させ、接地用自走手段３を接地させた状態で行うが、作業の安全を図るため、図１にも示すように自走車体１の後端左右両側に設けられている左右一対の接地盤９０をシリンダーユニット９１で下降接地させるとともに、鋼管杭回転圧入装置５のリーダー３４の下端左右両側に設けられている左右一対の接地盤９２をシリンダーユニット９３で下降接地させることができる。
【００２７】
以上の工事基地内準備作業が完了すれば、図１８に示すように、自走車体１に対して鋼管杭回転圧入装置５を上昇させ、当該鋼管杭回転圧入装置５に吊り具６７を介して連結されている軌道用台車８を、当該吊り具６７により地上適当高さまで吊り上げる。この後、自走車体１の左右一対の接地盤９０及び鋼管杭回転圧入装置５の左右一対の接地盤９２をそれぞれ地上適当高さまで上昇させ、自走車体１を接地用自走手段３により自走させる。
【００２８】
自走車体１を踏切などにおいて軌道内に進入させたならば、軌道用自走手段４の従動車輪ユニット９の左右一対の従動車輪１４ａ，１４ｂ及び駆動車輪ユニット１０の左右一対の駆動車輪２５ａ，２５ｂが、それぞれ軌道の２本のレール１６ａ，１６ｂの真上に位置するように、自走車体１を操向停止させる。この後、従動車輪ユニット９の左右一対の従動車輪１４ａ，１４ｂ及び駆動車輪ユニット１０の左右一対の駆動車輪２５ａ，２５ｂをそれぞれ前記のように自走車体１に対して下降させることにより、これら従動車輪ユニット９及び駆動車輪ユニット１０により自走車体１を軌道の２本のレール１６ａ，１６ｂ上に支持させる。さらに、鋼管杭回転圧入装置５を自走車体１に対して下降させ、吊り下げている軌道用台車８の車輪６５を軌道の２本のレール１６ａ，１６ｂに係合させる。このとき、軌道用台車８がレール１６ａ，１６ｂに乗り移った後も自走車体１に対して鋼管杭回転圧入装置５の全体、または鋼管杭回転駆動手段３８のみを下降させ、当該鋼管杭回転駆動手段３８にセットされている先端金物付き鋼管杭Ｗの下端を軌道用台車８の凹入部６６の底面上に当接させ、当該先端金物付き鋼管杭Ｗや鋼管杭保持手段６Ａ，６Ｂに保持されている２本の鋼管杭Ｗを含めて、鋼管杭回転圧入装置５側の全体重量を軌道用台車８に受け持たせることができる。
【００２９】
図１９に示すように、鋼管杭打設装置全体を軌道の２本のレール１６ａ，１６ｂ上に移載したならば、軌道用自走手段４の駆動車輪ユニット１０における左右一対の駆動車輪２５ａ，２５ｂをモーター２７により回転駆動し、鋼管杭打設装置全体を軌道の２本のレール１６ａ，１６ｂ上で鋼管杭打設工事現場へ向けて自走させることができる。なお、この軌道上での自走作業に際しては、鋼管杭保持手段６Ａ，６Ｂ及びこれらに保持されている左右２本の鋼管杭Ｗが軌道内の車両走行領域の外側に張り出さないように、鋼管杭保持手段６Ａ，６Ｂの第一アーム４９及び第二アーム５２を内側へ適当角度揺動させておく。図１９〜図２２中の９４は、軌道上方に張設されている給電用架線である。
【００３０】
鋼管杭打設装置（自走車体１）が鋼管杭打設工事現場に到着したならば、図２０に示すように、鋼管杭回転圧入装置５を自走車体１に対して上昇させて、先端金物付き鋼管杭Ｗを軌道用台車８から浮上させることにより、軌道用台車８を鋼管杭回転圧入装置５から離脱除去する。そして、軌道用自走手段４の従動車輪ユニット９と駆動車輪ユニット１０とを対地浮上させて接地用自走手段３を接地させるとともに、鋼管杭回転圧入装置５を自走車体１に対して下降させた後、さらに、自走車体１側の左右一対の接地盤９０と鋼管杭回転圧入装置５側の左右一対の接地盤９２とをそれぞれ下降させ、これら接地盤９０，９２により鋼管杭打設装置全体を支持させるように自走車体１の接地用自走手段３を対地浮上させる。
【００３１】
上記の準備作業が完了すれば、鋼管杭回転圧入装置５により先端金物付き鋼管杭Ｗを打設する。即ち、鋼管杭回転駆動手段３８のリング状チャック部４０で先端金物付き鋼管杭Ｗを把持した状態で当該リング状チャック部４０を回転駆動させながら鋼管杭回転駆動手段３８を圧入用シリンダーユニット３７によりリーダー３４に対して強制下降させる鋼管杭回転圧入工程と、リング状チャック部４０を開放させた状態で鋼管杭回転駆動手段３８を圧入用シリンダーユニット３７によりリーダー３４に対して上昇させる鋼管杭回転駆動手段３８の戻し工程とを、繰り返し行うことにより、先端金物Ｗａを備えた鋼管杭Ｗを、図２１に示すように所定深さまで打設する。
【００３２】
先端金物付き鋼管杭Ｗの打設が完了したならば、図２１に示すように、待機位置にあった架線保護手段７の架線保護用遮蔽板６３を作用位置へ移動させて、軌道上方の給電用架線９４の真下位置で鋼管杭回転駆動手段３８の上方に架線保護用遮蔽板６３を配置する（鋼管杭打設工事現場に自走車体１を固定したときに架線保護用遮蔽板６３を作用位置へ移動させておいても良い）とともに、鋼管杭回転駆動手段３８を圧入用シリンダーユニット３７によりリーダー３４に対して下降限位置まで下降させた状態で、鋼管杭保持手段６Ａ（または６Ｂ）に保持させている鋼管杭Ｗを鋼管杭回転駆動手段３８にセットする。即ち、鋼管杭保持手段６Ａの昇降体４６の昇降駆動と第一アーム４９及び第二アーム５２の揺動駆動とにより、当該鋼管杭保持手段６Ａの鋼管杭支持具４３で支持している鉛直姿勢の鋼管杭Ｗを鋼管杭回転駆動手段３８のリング状回転駆動部３９の真上に配置した後、昇降体４６の下降により当該鋼管杭Ｗをリング状回転駆動部３９からリング状チャック部４０内へ挿入する。
【００３３】
次に、図２２に示すように、鋼管杭回転駆動手段３８を圧入用シリンダーユニット３７により適当高さまで上昇させ、リング状チャック部４０の下側に作業空間を確保した状態で、所定深さまで打設された先端金物付き鋼管杭Ｗの上端と、その上に前記のようにセットされた鋼管杭Ｗの下端との接合部Ｗｂを、溶接やねじ結合方法により結合一体化する。この後、先端金物付き鋼管杭Ｗにおいて説明した鋼管杭回転圧入作業を実施して、先端金物付き鋼管杭Ｗとこれに継ぎ足された鋼管杭Ｗとを所定深さまで打設する。この作業が完了すれば、鋼管杭保持手段６Ｂ（または６Ａ）で保持されている鋼管杭Ｗを前記の要領で鋼管杭回転駆動手段３８にセットし、上下の鋼管杭Ｗどうしを結合した後、再び鋼管杭回転圧入作業を実施して、継ぎ足しにより全長が延長された鋼管杭を所定深さまで打設する。
【００３４】
例えば終電から始発までの連続する鋼管杭打設作業時間内において、３本以上の鋼管杭を継ぎ足しながら打設するときは、空き状態の鋼管杭保持手段６Ａ，６Ｂに新たに鋼管杭Ｗを補給しておく必要がある。この鋼管杭補給作業に際して、図１２〜図１４に示したクレーン車７０を使用することができる。即ち、軌道上を自走するための軌道用自走手段を備えたクレーン付きトラックなどにより鋼管杭打設工事現場付近に搬入された鋼管杭Ｗ（予め図９に示す被支持具５９が取り付けられている）を前記クレーン車７０の鋼管杭把持手段７３により把持させ、当該鋼管杭Ｗを、当該クレーン車７０のクレーンブーム７２の上下動及び伸縮、各揺動体７８，８１の揺動駆動、及び第三回転体８３の回転駆動により、鉛直姿勢に変えるとともに、図２２に示すように空き状態の鋼管杭保持手段６Ａ，６Ｂの鋼管杭支持具４３に支持させる。
【００３５】
この鋼管杭の補給作業に際して、クレーン車７０のクレーンブーム７２や把持した鋼管杭Ｗが架線９４に接触する事故を、前記クレーン車７０のクレーンブーム７２の先端に取り付けられている架線保護手段７４の架線保護用遮蔽板８９により防止することができる。勿論、前記架線保護用遮蔽板８９は、鋼管杭把持手段７３で把持して鉛直姿勢にした鋼管杭Ｗを架線９４の付近に移動させる前に、シリンダーユニット８７により当該鋼管杭Ｗの真上を覆う作用位置へ進出移動させておくものである。
【００３６】
鋼管杭継ぎ足し打設作業が終了すれば、再び軌道用自走手段４により自走車体１を軌道のレール１６ａ，１６ｂ上に支持させるとともに、当該軌道のレール１６ａ，１６ｂ上に載置した軌道用台車８の上に鋼管杭回転クレーン手段３８のリング状チャック部４０を移載した状態で、前記軌道用自走手段４を利用して鋼管杭打設装置を鋼管杭打設工事現場から退出させれば良い。
【００３７】
なお、鋼管杭Ｗの周面に付設された被支持具５９は、当該鋼管杭Ｗの回転圧入抵抗を増大させることになるので、鋼管杭回転圧入装置５（鋼管杭回転駆動手段３８）にセットした後にハンマーなどで打ち叩いて取り外しておくのが望ましい。
【００３８】
【発明の効果】
以上のように本発明の鋼管杭打設装置は、昇降可能な軌道用自走手段を利用することにより、軌道上またはその近傍の鋼管杭打設工事現場から離れた踏切などの軌道上への乗り入れ可能場所から当該軌道上を経由して前記工事現場まで簡単容易且つ安全に移動することができる。換言すれば、軌道上またはその近傍の鋼管杭打設工事現場の付近に自走車体を軌道内に進入させ得るような適当な場所がなくとも、当該工事現場付近にのみ覆工版敷設工事を施せば良く、踏切などの軌道内乗り入れ場所から工事現場までの全走行経路にわたって、通常の接地用自走手段を利用して自走車体を走行させるための覆工版敷設工事を施工しなければならない場合と比較して、手間及びコストの大幅な削減を図ることができる。
【００３９】
しかも、鋼管杭回転圧入装置にセットした鋼管杭とは別の鋼管杭を、鋼管杭保持手段で保持させた状態で工事現場に持ち込ませることができ、鋼管杭回転圧入装置にセットした鋼管杭の打設完了後、鋼管杭保持手段で保持させた鋼管杭を当該鋼管杭保持手段により鋼管杭回転圧入装置にセットし、先の打設済み鋼管杭に継ぎ足した状態で、引き続いて鋼管杭の打設作業を続行することができる。従って、一般的に深夜作業となる軌道内での鋼管杭打設作業において、限られた時間内で鋼管杭の打設作業を効率良く遂行することができる。
【００４０】
また、仮に鋼管杭保持手段への鋼管杭の補給作業にクレーンを利用するとしても、深夜での吊り込み鋼管杭に対する危険な玉掛け作業を少なくして、作業の安全性を向上させることができる。さらに、軌道上方の給電用架線の真下が鋼管杭の打設位置である場合でも、当該鋼管杭回転圧入装置の側方位置、即ち、前記架線の真下位置に対して側方に離れた位置で鋼管杭保持手段に継ぎ足し使用する鋼管杭を補給し、この鋼管杭を前記鋼管杭保持手段により架線真下の鋼管杭回転圧入装置へ横から供給してセットすることができるので、継ぎ足し使用する鋼管杭をセットするために鋼管杭回転圧入装置をその都度架線真下位置から横側方に移動させるような手間と時間を無くすことができ、この点でも作業を効率良く遂行し得るとともに、架線に対する引っ掛け事故を防止し易くなる。
【００４１】
なお、請求項２に記載の構成によれば、鋼管杭保持手段に鋼管杭を支持させるときの鋼管杭受取位置や高さ及び鋼管杭支持具の向きを状況に応じて変えることができ、しかも、鋼管杭支持具に支持させた鋼管杭を鋼管杭回転圧入装置へできる限り短い経路を経由させて供給することが容易になる。換言すれば、鋼管杭保持手段に鋼管杭を支持させる作業を容易に行えるとともに、当該鋼管杭保持手段により鋼管杭回転圧入装置へ鋼管杭を能率良く供給することができる。
【００４２】
請求項３に記載の構成によれば、継ぎ足し使用する鋼管杭に予めパイプ材や溝形鋼などから成る被支持具を取り付けておくだけで、当該鋼管杭を鋼管杭保持手段の鋼管杭支持具に容易且つ確実に支持させることができ、鋼管杭支持具としても上向きピンだけの極めて簡単なもので良く、鋼管杭支持具として鋼管杭を把持する開閉自在な把持爪を使用する場合と比較して、鋼管杭保持手段を極めて安価に構成することができるし、鋼管杭保持手段の制御も簡単容易になる。
【００４３】
請求項４に記載の構成によれば、鋼管杭回転圧入装置にセットされる鋼管杭の他に２本の鋼管杭を鋼管杭回転圧入装置の左右両側にそれぞれ保持させて打設工事現場へ搬送することができるので、鋼管杭の継ぎ足し打設作業を一層能率的に行える。
【００４４】
請求項５に記載の構成によれば、軌道上方の給電用架線の真下位置で鋼管杭を打設する場合でも、架線保護用遮蔽板により鋼管杭などを架線に引っ掛ける事故を未然に防止することができ、作業の安全性を向上させることができる。この場合、請求項６に記載の構成によれば、鋼管杭打設工事現場から離れた場所でクレーンにより鋼管杭を前記鋼管杭回転圧入装置内に吊り込む場合、前記架線保護用遮蔽板を待機位置に移動させておくことにより、当該架線保護用遮蔽板に邪魔されることなく鋼管杭の吊り込み作業を安全且つ容易に行える。さらに、請求項７に記載の構成によれば、鋼管杭の打設作業以外のときは前記架線保護用遮蔽板の地上高を低くして待機させることができるので、鋼管杭打設工事現場までの走行時などに前記架線保護用遮蔽板が邪魔になる恐れがなくなる。
【００４５】
請求項８に記載の構成によれば、軌道用自走手段を利用して鋼管杭打設装置をして軌道上を走行させるときに、鋼管杭を支持した鋼管杭保持手段やセットされた鋼管杭を含む鋼管杭回転圧入装置全体を自走車体に片持ち状に支持させる必要がなくなり、この鋼管杭回転圧入装置全体の重量を軌道用台車を介して軌道に受け持たせた状態で走行させることができるので、軌道用自走手段の構成も簡単になり、安全性も向上する。この場合、請求項９に記載の構成によれば、軌道用台車と鋼管杭回転圧入装置にセットされた鋼管杭とが上下方向に嵌合した状態で走行することになるので、特に軌道用台車と鋼管杭回転圧入装置との連結手段を設けなくとも、両者が走行中に不測に外れる恐れは全くなく、安全に走行させることができる。
【００４６】
さらに、請求項１０に記載の鋼管杭打設工法によれば、本発明の鋼管杭打設装置を使用して鋼管杭を軌道内またはその近傍位置に打設する場合、鋼管杭補給用クレーン車を利用して、空いた鋼管杭保持手段に現場で鋼管杭を補給するのであるが、この鋼管杭の補給に際し、一般のクレーン車のように鋼管杭を吊り下げるのではなく、鋼管杭把持手段で鋼管杭を把持して鋼管杭保持手段に補給することができるので、上方に架線があるような現場においても安全に鋼管杭の補給作業を行える。換言すれば、上方に架線があるような現場においても、鋼管杭の継ぎ足し打設作業を能率良く且つ安全に行えるのである。この工法を実施する場合、請求項１１に記載の構成によれば、前記鋼管杭補給用クレーン車が鋼管杭打設装置の鋼管杭保持手段に鋼管杭を補給する作業を行うとき、架線を引っ掛ける事故を架線保護用遮蔽板により未然に防止することができ、一層安全に作業を遂行することができる。
【図面の簡単な説明】
【図１】使用状態での鋼管杭打設装置の全体を示す側面図である。
【図２】鋼管杭打設装置の全体を示す平面図である。
【図３】軌道上走行状態での鋼管杭打設装置の全体を示す側面図である。
【図４】軌道上走行時に使用する軌道用自走手段と軌道用台車とを示す側面図である。
【図５】軌道用自走手段の従動車輪ユニットを示す背面図である。
【図６】軌道用自走手段の駆動車輪ユニットを示す正面図である。
【図７】同駆動車輪ユニットを示す平面図である。
【図８】片側の鋼管杭保持手段を示す平面図である。
【図９】Ａ図は同鋼管杭保持手段の鋼管杭支持具と鋼管杭に取り付けられた被支持具とを示す平面図であり、Ｂ図は同鋼管杭支持具を鋼管杭側の被支持具に係合させる直前の状態を示す側面図である。
【図１０】架線保護手段を示す側面図である。
【図１１】軌道用台車の平面図である。
【図１２】鋼管杭補給用クレーン車を示す側面図である。
【図１３】同クレーン車の平面図である。
【図１４】同クレーン車の鋼管杭把持手段と架線保護手段とを示す側面図である。
【図１５】先端金物付き鋼管杭をセットする状態を示す側面図である。
【図１６】鋼管杭保持手段に継ぎ足し使用する鋼管杭をセットする状態を示す側面図である。
【図１７】軌道用台車をセットする状態を示す側面図である。
【図１８】接地用自走手段による走行状態を示す側面図である。
【図１９】軌道用自走手段による走行状態を示す側面図である。
【図２０】打設工事現場での準備作業状態を示す側面図である。
【図２１】先端金物付き鋼管杭の打設終了状態を示す側面図である。
【図２２】鋼管杭の継ぎ足し作業状態を示す側面図である。
【符号の説明】
１自走車体
３接地用自走手段
４軌道用自走手段
５鋼管杭回転圧入装置
６Ａ鋼管杭保持手段
６Ｂ鋼管杭保持手段
７架線保護手段
８軌道用台車
９従動車輪ユニット
１０駆動車輪ユニット
１４ａ従動車輪
１４ｂ従動車輪
１５従動車輪昇降用シリンダーユニット
１６ａ軌道のレール
１６ｂ軌道のレール
２５ａ駆動車輪
２５ｂ駆動車輪
２７駆動車輪駆動用モーター
２８駆動車輪昇降用シリンダーユニット
３３鋼管杭回転圧入装置の支持手段
３４リーダー
３７鋼管杭回転駆動手段の圧入用シリンダーユニット
３８鋼管杭回転駆動手段
４２鋼管杭支持具の駆動機構
４３鋼管杭支持具
４６昇降体
４８第一アーム駆動用シリンダーユニット
４９第一アーム
５１第二アーム駆動用シリンダーユニット
５２第二アーム
５６上向きピン
５９被支持具
６１パンタグラフリンク機構
６３架線保護用遮蔽板
６４パンタグラフリンク機構駆動用シリンダーユニット
６５軌道用台車の車輪
６６軌道用台車の鋼管杭下端嵌合用凹入部
６７軌道用台車吊り下げ用吊り具
７０鋼管杭補給用クレーン車
７２クレーンブーム
７３鋼管杭把持手段
７４架線保護手段
８５開閉可能な鋼管杭把持爪
８７架線保護用遮蔽板出退駆動用シリンダーユニット
８９架線保護用遮蔽板
９０昇降可能な接地盤
９２昇降可能な接地盤[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a steel pipe pile driving device and its construction method that can be utilized when constructing underground facilities under the track of a business route or reinforcing the track base.
[0002]
[Prior art and its problems]
When constructing underground facilities under the track of the business route or reinforcing the track base, it is necessary to drive steel pipe piles in the track or at a side position adjacent to the track. The conventional steel pipe pile driving device supports the steel pipe pile rotary press-fitting device on the front part of a self-propelled vehicle equipped with a self-propelled means for grounding such as a crawler, so it can be put on tracks such as railroad crossings. A lining plate has to be laid on the track over the entire travel path of the steel pipe pile driving device between the place and the construction site, which requires a lot of labor and cost.
[0003]
In addition, the steel pipe pile driving device can be put into the construction site with one steel pipe pile set in the steel pipe pile rotary press-in device in advance, but the second and subsequent pipes are rotary press-fitted into the steel pipe pile at the construction site. Must be set in the device. In other words, the steel pipe pile driving operation cannot be performed efficiently unless the next steel pipe pile is carried to the construction site by a truck or the like before the first one steel pipe pile is finished. In addition, in the case of business routes, work will be done in the middle of the night from the last train to the first train, so it will be dangerous to hang the steel pipe pile on the steel pipe pile rotary press-in device with a crane. There was also a problem in terms of sex.
[0004]
[Means for Solving the Problems]
The present invention aims to provide a steel pipe pile driving device that can solve the conventional problems as described above, and its means is shown with reference numerals of embodiments described later. Self-propelled means 4 for track provided in a self-propelled vehicle body 1 provided with grounding self-propelled means 3, a steel pipe pile rotary press-fitting device 5 supported at the front of the self-propelled vehicle body 1, and a steel pipe pile The steel pipe pile holding means 6A comprises a steel pipe pile support tool 43 that supports the steel pipe pile W, and a drive mechanism 42 that moves the steel pipe pile support tool 43 in a three-dimensional direction. The steel pipe pile W supported by the steel pipe pile support tool 43 can be set to the steel pipe pile rotary press-fitting device 5 from the side position of the steel pipe pile rotary press-fitting device 5.
[0005]
Regarding the implementation of the steel pipe pile driving device of the present invention having the above-described configuration, the drive mechanism 42 of the steel pipe pile holding means 6A includes an elevating body 46 provided to be movable up and down at a lateral position of the steel pipe pile rotary press-fitting device 5; The first arm 49 extends forward from the front end of the lifting body 46 and is supported so as to be horizontally swingable, and the second arm 52 is supported at the tip of the first arm 49 so as to be horizontally swingable. And the said steel pipe pile support tool 43 can be attached to the front-end | tip of the said 2nd arm 52. FIG.
[0006]
In addition, the steel pipe pile support tool 43 of the steel pipe pile holding means 6A includes an upward pin 56 that supports the steel pipe pile W by engaging upward with a supported tool 59 attached to the outer surface of the steel pipe pile W. Can be. Furthermore, although the said steel pipe pile holding means can also be arrange | positioned only to either the right or left side of the said steel pipe pile rotary press-in apparatus 5, steel pipe pile holding means 6A, 6B is respectively provided in the right-and-left both sides of the said steel pipe pile rotary press-in apparatus. It is desirable to arrange.
[0007]
Moreover, the overhead wire protection shielding plate 63 positioned above the steel pipe pile W set in the steel pipe pile rotary press-fitting device 5 can be disposed. The overhead wire protection shielding plate 63 is movably supported between an action position located directly above the steel pipe pile W set in the steel pipe pile rotary press-fitting device 5 and a standby position away from the action position. Is desirable. Further, in this case, the overhead wire protection shielding plate 63 is moved in parallel between the operating position and a standby position separated rearward and downward from the operating position by the pantograph link mechanism 61 at the upper end of the steel pipe pile rotary press-fitting device 5. It can be supported as possible.
[0008]
Further, a track carriage 8 that supports the steel pipe pile rotary press-fitting device 5 can be provided detachably. In this case, the track carriage 8 is configured to be detachably suspended from the lower end of the steel pipe pile rotary press-fitting device 5, and the lower end of the steel pipe pile W set in the steel pipe pile rotary press-fitting device 5 is fitted. The steel pipe pile rotary press-fitting device 5 can be supported via a steel pipe pile W having a lower end fitted to the concave part 66.
[0009]
Further, when the steel pipe pile driving device of the present invention described above is used to drive the steel pipe pile in the track or in the vicinity thereof, the steel pipe pile holding means 6A and 6B are replenished with the steel pipe pile W on site. A steel pipe pile supply crane truck 70 can be used. In this crane truck 70, a steel pipe pile gripping means 73 is supported at the tip of a crane boom 72 so as to be able to turn in an arbitrary direction, and the steel pipe pile rotation is performed. After placing the steel pipe pile W set in the press-fitting device 5, the steel pipe pile holding means 6A, 6B supports the steel pipe pile holding means 6A, 6B, and the steel pipe pile rotary press-fitting device 5 To the previously-placed steel pipe pile W, and the empty steel pipe pile holding means 6A and 6B are gripped by the steel pipe pile holding means 73 of the crane pile 70 for steel pipe pile supply. Replenished and supported steel pipe pile W It can be.
[0010]
When the construction method using the steel pipe pile replenishment crane vehicle 70 is carried out, the steel pipe pile replenishment crane vehicle 70 has the steel pipe pile W gripped by the steel pipe pile gripping means 73 in a vertical posture at an appropriate height above the ground. Then, an overhead wire protection shielding plate 89 positioned directly above the steel pipe pile W can be provided at the tip of the crane boom 72.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 1 denotes a self-propelled vehicle including a grounding self-propelled means 3 composed of a pair of left and right crawlers 2, Self-propelled means 4, a steel pipe pile rotary press-fitting device 5, a pair of left and right steel pipe pile holding means 6A, 6B, an overhead wire protecting means 7, and a detachable track carriage 8 (FIG. 3).
[0012]
The track self-propelled means 4 includes a driven wheel unit 9 attached to the rear end of the self-propelled vehicle body 1 and a drive wheel unit 10 attached to the front end of the self-propelled vehicle body 1. 4 and 5, the guide member 11 attached to the rear end of the self-propelled vehicle body 1 is supported by the guide member 11 so as to be movable up and down via two lifting guide columns 12a and 12b. Lifting drive cylinder unit interposed between the bearing member 13, a pair of left and right driven wheels 14 a and 14 b supported concentrically at both ends of the bearing member 13, and the guide member 11 and the bearing member 13. 15 and lowering the bearing member 13 by the cylinder unit 15, the two wheels 14a and 14b are moved to the two rails 16a and 16b of the track as shown in FIGS. The self-propelled vehicle body 1 can be floated up to a predetermined height while remaining engaged in 6b.
[0013]
As shown in FIG. 3, the state in which the self-propelled vehicle body 1 is levitated from the track (two rails 16a and 16b) to a predetermined height by the driven wheel unit 9 is provided on the two lifting guide columns 12a and 12b. The lock can be locked by inserting the lock pin 19 over the pin hole 17 formed and the pin hole 18 provided in the guide member 11. Further, as indicated by phantom lines in FIGS. 1, 4, and 5, the bearing member 13 is lifted by the cylinder unit 15, and the wheels 14 a and 14 b are lifted to a predetermined height from the two rails 16 a and 16 b of the track. The grounding self-propelling means 3 of the self-propelled vehicle body 1 is locked over the pin hole 20 provided in the two lifting guide columns 12a and 12b and the pin hole 18 provided in the guide member 11. The pin 19 can be locked by being inserted. The lock pin 19 can also be configured so that it can be locked to the guide member 11 with a pin, a bolt, or the like in use.
[0014]
As shown in FIGS. 4, 6, and 7, the drive wheel unit 10 is supported by a bracket 21 attached to the front end of the self-propelled vehicle body 1 so as to be swingable up and down via a horizontal support shaft 22. A moving frame 23, a pair of left and right drive wheels 25a, 25b attached to both ends of a drive shaft 24 pivotally supported on the free end of the swing frame 23, and supported on the swing frame 23 and the drive shaft 24 and a drive motor 27 linked to each other via a chain transmission means 26, and a pair of left and right cylinder units 28 for driving the swing frame 23 up and down. By lowering, as shown in FIGS. 3, 4, and 6, the self-propelled vehicle body 1 is placed in a state where both wheels 25a, 25b are engaged with the two rails 16a, 16b of the track. It can be floated to a height. On the contrary, by raising the swing frame 23 by the cylinder unit 28, as shown in FIG. 1, both wheels 25a and 25b are levitated to a predetermined height from the two rails 16a and 16b of the track, and the self-propelled vehicle body 1 grounding self-propelled means 3 can be grounded. At this time, as shown in FIG. 4, the swinging frame 23 can be supported by a pin (not shown) inserted through a pin hole 29 provided in the bracket 21, and the drive wheel unit 10 can be locked at the rising standby position.
[0015]
The steel pipe pile rotary press-fitting device 5 is supported on the front end of the self-propelled vehicle body 1 via a support means 33 including a fixed length link 30, an extendable link 31 that can be extended and retracted, and a cylinder unit 32 that drives the fixed length link 30 up and down. The reader 34 is supported by the leader 34 so as to be movable up and down through a guide rail 35 provided on the leader 34 and a lift guide 36 engaged with the guide rail 35, and is driven up and down by a press-fit cylinder unit 37. Steel pipe pile rotation driving means 38, which is conventionally known, for example, from Japanese Utility Model Publication No. 6-29226, and is suspended from the ring-shaped rotation driving part 39 and the rotation driving part 39. The ring-shaped chuck portion 40 is inserted vertically through the ring-shaped rotation drive portion 39 and the ring-shaped chuck portion 40. The steel pipe piles W, or while gripping with the ring-shaped chuck portion 40, and rotates driven by a pair of left and right motor 41 mounted on the ring-shaped rotary drive unit 39.
[0016]
As shown in FIG. 2, the pair of left and right steel pipe pile holding means 6 </ b> A and 6 </ b> B has a symmetrical structure disposed on the left and right sides of the steel pipe pile rotary press-fitting device 5, and each has a drive mechanism 42 and a steel pipe pile support 43. 1 and 3, the drive mechanism 42 is supported by a pair of front and rear lifting guide rails 44 supported by a leader 34 of the steel pipe pile rotary press-fitting device 5 so as to be movable up and down, and a cylinder unit. As shown in FIG. 8, the lifting body 46 is driven up and down by 45, and is supported by a vertical support shaft 47 so as to extend forward from the front end of the lifting body 46 and is horizontally driven by a cylinder unit 48. A first arm 49 and a second arm 52 that is pivotally supported by a vertical support shaft 50 at the tip of the first arm 49 and is horizontally driven by a cylinder unit 51.
[0017]
As shown in FIGS. 8 and 9, the steel pipe pile support tool 43 is attached to the tip of the second arm 52 of the drive mechanism 42, and is supported by a horizontal support shaft 53 on the tip of the second arm 52. A pair of left and right upward pins 56 that are supported and fixed at a predetermined angle by a link 54 with a turnbuckle and a front surface of the substrate 55 with a suitable gap between the front surface of the substrate 55. And a rotation guide plate 58 that is supported by a horizontal support shaft 57 so as to be able to rotate on the back side of the substrate 55 below the upward pin 56 and whose peripheral surface protrudes from the front surface of the substrate 55. On the other hand, in the steel pipe pile W supported by the steel pipe pile support tool 43, a pipe material or a groove shape is formed so that the pair of left and right upward pins 56 can be inserted upward from below at an appropriate height position on the outer surface. A pair of supported tools 59 made of steel or the like are attached by welding.
[0018]
The overhead wire protection means 7 is supported by a pantograph link mechanism 61 comprising a pair of left and right parallel double links 60a and 60b at the upper end of the leader 34 of the steel pipe pile rotary press-fitting device 5, as shown in FIGS. An overhead wire protection shielding plate 63 made of an electrically insulating material (ebonite or the like) is horizontally provided on the frame 62, and the overhead wire protection is provided by a cylinder unit 64 interposed between the frame 62 and the upper end of the leader 34. The shielding plate 63 is separated from the working position (indicated by the phantom lines in FIGS. 1 and 10) located immediately above the steel pipe pile rotation driving means 38 of the steel pipe pile rotary press-fitting device 5 and rearward and downward from the working position. It can be moved in parallel with the standby position (shown by the solid line in FIGS. 3 and 10). As the pantograph link mechanism 61, one using a pair of left and right parallel double links 60a and 60b is illustrated, but the pantograph link mechanism 61 is not limited to this.
[0019]
As shown in FIGS. 3, 4, and 11, the track carriage 8 is a cart provided with a pair of left and right wheels 65 that engage with the two rails 16 a and 16 b of the track, and two sets of front and rear wheels 65. On the upper surface thereof, there is provided a recessed portion 66 into which the lower end of the steel tube pile W set in the steel tube pile rotation driving means 38 of the steel tube pile rotary press-fitting device 5 is fitted. As shown in FIG. When the steel pipe pile rotary press-fitting device 5 is supported via the steel pipe pile W fitted at the lower end thereof, and the steel pipe pile W is not set in the steel pipe pile rotary drive means 38 of the steel pipe pile rotary press-fit device 5 4 can also directly support the ring-shaped chuck portion 40 of the steel pipe pile driving means 38, as indicated by phantom lines in FIG. Further, as indicated by phantom lines in FIG. 4, the track carriage 8 can be suspended from the ring-shaped chuck portion 40 of the steel pipe pile rotation driving means 38 by a plurality of suspension tools 67 such as a chain.
[0020]
12 and 13 show a steel pipe pile supply crane vehicle 70 that can be used when setting the steel pipe pile W to the steel pipe pile holding means 6A, 6B or the steel pipe pile rotary press-fitting device 5 at a steel pipe pile driving site or the like. Is shown. This crane vehicle 70 is provided with a grounding self-propelling means 71 such as a crawler and a crane boom 72 that can be moved up and down, and a steel pipe pile gripping means 73 and an overhead wire protection means 74 are attached to the tip of the crane boom 72. It has been.
[0021]
As shown in FIG. 14, the steel pipe pile holding means 73 is supported by a base 75 attached to the tip of the crane boom 72 so as to be swingable up and down by a horizontal support shaft 76 and driven to swing by a cylinder unit 77. One oscillating body 78 and a second oscillating body that is pivotally supported by the first oscillating body 78 about an axis 79 perpendicular to the horizontal support shaft 76 and driven to oscillate by a cylinder unit 80. The moving body 81 and the second oscillating body 81 are rotatably supported around an axis 82 that is perpendicular to the horizontal support shaft 76 and the shaft center 79, and are a cylinder unit or a hydraulic motor (not shown). ) And a pair of gripping claws 85 attached to the third rotating body 83 so as to be freely opened and closed and driven to be opened and closed by a cylinder unit 84, The support level and direction of the steel pipe pile W gripped by the pair of gripping claws 85 can be arbitrarily determined by the vertical movement and expansion / contraction of the crane boom 72, the swing driving of the swinging bodies 78 and 81, and the rotational driving of the third rotating body 83. Can be changed to
[0022]
As shown in FIG. 14, the overhead wire protection means 74 has a slide guide 86 attached to the base material 75 attached to the tip of the crane boom 72, is slidably supported by the slide guide 86, and is slidably driven by the cylinder unit 87. An overhead wire protection shielding plate 89 made of an electrically insulating material (ebonite or the like) is attached on the sliding frame 88, and when the crane boom 72 is moved up to a predetermined angle, the overhead wire protection shielding plate is provided. A slide guide 86 is attached to the base material 75 at a predetermined angle so that 89 is substantially horizontal at a predetermined height, and the sliding frame 88 is advanced by the cylinder unit 87 in such a state. As shown by the above, the steel pipe pile W which is gripped by the steel pipe pile gripping means 73 and has a substantially vertical posture at a predetermined height on the ground. It is configured to be able to cover the upper in overhead line protective shield 89.
[0023]
The steel pipe pile placing method using the steel pipe pile placing apparatus configured as described above will be described with reference to FIGS. 15 to 22. The construction away from the steel pipe pile placing construction site in or near the track In the base, the steel pipe pile W is set in the steel pipe pile rotary press-fitting device 5 as shown in FIG. That is, the overhead wire protection shielding plate 63 of the overhead wire protection means 7 is moved to a standby position (shown by a solid line in FIG. 3 and FIG. 10) away from the position directly above the steel pipe pile rotation drive means 38, and In a state where the steel pipe pile rotation driving means 38 in the steel pipe pile rotary press-fitting device 5 is raised to an appropriate height with respect to the leader 34, the steel pipe pile W is moved to the ring-shaped rotating portion 39 and the ring-shaped chuck portion 40 using a crane vehicle or the like. The steel pipe pile W is hung inside and gripped and fixed by the ring-shaped chuck portion 40, and the rotary excavation tip hardware Wa is attached to the peripheral surface of the steel pipe pile W protruding downward from the ring-shaped chuck portion 40.
[0024]
Next, as shown in FIG. 16, different steel pipe piles W are set on the steel pipe pile holding means 6 </ b> A, 6 </ b> B using a crane truck or the like. That is, the steel pipe pile support 43 is obtained by the raising / lowering drive of the elevating body 46 of each steel pipe pile holding means 6A, 6B (see FIG. 8), the horizontal swing drive of the first arm 49, and the horizontal swing drive of the second arm 52. 9 in a state where the ground height and direction suitable for the work are set, the steel pipe pile W to which the supported tool 59 is attached by welding as shown in FIG. 9 is lifted by a crane car in advance, and the supported tool 59 is attached to the steel pipe pile. The steel pipe pile W is externally fitted to the two parallel upward pins 56 of the support tool 43, and the steel pipe pile support tool 43 of each steel pipe pile holding means 6A, 6B is held in a substantially vertical posture. At this time, as shown in FIG. 9B, by lowering the steel pipe pile W while bringing the peripheral surface of the steel pipe pile W into contact with the rotation guide plate 58 of the steel pipe pile support tool 43, the supported tool 59 is moved to the steel pipe pile. It can be easily fitted to the two parallel upward pins 56 of the support tool 43.
[0025]
Thereafter, as shown in FIG. 17, the track carriage 8 is set at the lower end of the steel pipe pile rotary press-fitting device 5. That is, the steel pipe pile W with the tip hardware set on the steel pipe pile rotation driving means 38 and fixed by the ring-shaped chuck portion 40 is moved upward of the steel pipe pile rotation driving means 38 to the leader 34 or the steel pipe pile rotation press-fitting to the self-propelled vehicle body 1. The track carriage 8 lifted to an appropriate height above the ground by raising the device 5 or both, and lifted by a crane truck or the like is disposed directly below the lower end of the steel pipe pile W with the tip hardware. Then, the steel pipe pile rotation driving means 38 is lowered to the ground so that the lower end of the steel pipe pile W with the tip metal fitting is fitted into the recessed portion 66 of the track carriage 8, and the track carriage 8 and the steel pipe pile are suspended by a hanging tool 67 such as a chain. The rotation drive means 38 (ring-shaped chuck part 40) is connected.
[0026]
In addition, the above operation | work is the state which caused the driven wheel unit 9 and the drive wheel unit 10 of the track self-propelled means 4 to surface and grounded the ground self-propelled means 3 as shown in FIGS. However, for safety of work, as shown in FIG. 1, a pair of left and right grounding boards 90 provided on the left and right sides of the rear end of the self-propelled vehicle body 1 are lowered and grounded by the cylinder unit 91, and the steel pipe pile A pair of left and right grounding boards 92 provided on the left and right sides of the lower end of the leader 34 of the rotary press-fitting device 5 can be lowered and grounded by the cylinder unit 93.
[0027]
When the above-described preparatory work in the construction base is completed, as shown in FIG. 18, the steel pipe pile rotary press-fitting device 5 is raised with respect to the self-propelled vehicle body 1, and the steel pipe pile rotary press-fitting device 5 is attached to the steel pipe pile rotary press-fitting device 5 via a lifting tool 67. The track carriage 8 connected is lifted to the appropriate height above the ground by the lifting tool 67. Thereafter, the pair of left and right grounding boards 90 of the self-propelled vehicle body 1 and the pair of left and right grounding boards 92 of the steel pipe pile rotary press-fitting device 5 are raised to an appropriate height above the ground. Run.
[0028]
If the self-propelled vehicle body 1 enters the track at a railroad crossing or the like, a pair of left and right driven wheels 14a and 14b of the driven wheel unit 9 of the track self-propelled means 4 and a pair of left and right drive wheels 25a of the drive wheel unit 10 are provided. The self-propelled vehicle body 1 is steered and stopped so that 25b is positioned directly above the two rails 16a and 16b of the track. Thereafter, the pair of left and right driven wheels 14a and 14b of the driven wheel unit 9 and the pair of left and right drive wheels 25a and 25b of the drive wheel unit 10 are respectively lowered with respect to the self-propelled vehicle body 1 as described above, thereby driving these driven wheels. The self-propelled vehicle body 1 is supported on the two rails 16 a and 16 b of the track by the wheel unit 9 and the drive wheel unit 10. Further, the steel pipe pile rotary press-fitting device 5 is lowered with respect to the self-propelled vehicle body 1, and the wheel 65 of the suspended track carriage 8 is engaged with the two rails 16a and 16b of the track. At this time, even after the track carriage 8 is transferred to the rails 16a and 16b, the entire steel pipe pile rotary press-fitting device 5 or only the steel pipe pile rotation driving means 38 is lowered with respect to the self-propelled vehicle body 1 to drive the steel pipe pile rotation. The lower end of the steel pipe pile W with the tip hardware set in the means 38 is brought into contact with the bottom surface of the recessed portion 66 of the track carriage 8 and is held by the steel pipe pile W with the tip hardware and the steel pipe pile holding means 6A, 6B. Including the two steel pipe piles W, the entire weight of the steel pipe pile rotary press-fitting device 5 can be received by the track carriage 8.
[0029]
As shown in FIG. 19, if the entire steel pipe pile driving device is transferred onto the two rails 16a, 16b of the track, a pair of left and right drive wheels 25a in the drive wheel unit 10 of the track self-propelling means 4 is provided. 25b can be rotationally driven by the motor 27, and the entire steel pipe pile driving device can be self-propelled toward the steel pipe pile driving construction site on the two rails 16a and 16b of the track. In this self-propelled work on the track, the steel pipe pile holding means 6A, 6B and the two left and right steel pipe piles W are not protruded outside the vehicle traveling area in the track. The first arm 49 and the second arm 52 of the steel pipe pile holding means 6A, 6B are rocked inward by an appropriate angle. In FIG. 19 to FIG. 22, 94 is a power supply overhead line stretched above the track.
[0030]
When the steel pipe pile driving device (self-propelled vehicle body 1) arrives at the steel pipe pile driving construction site, as shown in FIG. By lifting the steel pipe pile W with hardware from the track carriage 8, the track carriage 8 is removed from the steel pipe pile rotary press-fitting device 5. Then, the driven wheel unit 9 and the drive wheel unit 10 of the track self-propelling means 4 are levitated to the ground to ground the grounding self-propelled means 3 and the steel pipe pile rotary press-fitting device 5 is lowered with respect to the self-propelled vehicle body 1. After that, the pair of left and right grounding boards 90 on the self-propelled vehicle body 1 side and the pair of left and right grounding boards 92 on the steel pipe pile rotary press-fitting device 5 side are lowered, and the steel pipe piles are driven by the grounding boards 90 and 92. The grounding self-propelled means 3 of the self-propelled vehicle body 1 is levitated to the ground so as to support the entire apparatus.
[0031]
When the above preparatory work is completed, the steel pipe pile W with the tip hardware is driven by the steel pipe pile rotary press-fitting device 5. That is, while the ring-shaped chuck portion 40 of the steel pipe pile rotation driving means 38 is gripped by the ring-shaped chuck portion 40 and the ring-shaped chuck portion 40 is rotationally driven, the steel pipe pile rotation driving means 38 is pressed by the press-fitting cylinder unit 37. Steel pipe pile rotary press-fitting process for forcibly descending the leader 34, and steel pipe pile rotary drive means for raising the steel pipe pile rotary drive means 38 with respect to the leader 34 by the press-fitting cylinder unit 37 with the ring-shaped chuck portion 40 opened. By repeatedly performing the returning step of the means 38, the steel pipe pile W provided with the end hardware Wa is driven to a predetermined depth as shown in FIG.
[0032]
When the placement of the steel pipe pile W with the tip metal fitting is completed, as shown in FIG. 21, the overhead wire protection shielding plate 63 of the overhead wire protection means 7 located at the standby position is moved to the operating position, and power feeding above the track is performed. An overhead wire protection shielding plate 63 is disposed directly above the steel pipe pile driving means 38 at a position directly below the overhead wire 94 (the overhead wire protection shielding plate 63 acts when the self-propelled vehicle body 1 is fixed at the steel pipe pile driving construction site. In addition, the steel pipe pile rotation driving means 38 is lowered to the lower limit position with respect to the leader 34 by the press-fitting cylinder unit 37 to the steel pipe pile holding means 6A (or 6B). The steel pipe pile W being held is set on the steel pipe pile rotation driving means 38. That is, the vertical posture which is supported by the steel pipe pile support tool 43 of the steel pipe pile holding means 6A by the raising / lowering drive of the lifting body 46 of the steel pipe pile holding means 6A and the swing drive of the first arm 49 and the second arm 52. After the steel pipe pile W is disposed right above the ring-shaped rotation drive unit 39 of the steel pipe pile rotation drive means 38, the steel pipe pile W is moved from the ring-shaped rotation drive unit 39 into the ring-shaped chuck unit 40 by lowering the lifting body 46. Insert into.
[0033]
Next, as shown in FIG. 22, the steel pipe pile driving means 38 is raised to an appropriate height by the press-fitting cylinder unit 37, and a working space is secured below the ring-shaped chuck portion 40 to a predetermined depth. The joint Wb between the upper end of the provided steel pipe pile W with a metal fitting and the lower end of the steel pipe pile W set thereon as described above is coupled and integrated by welding or a screw coupling method. Then, the steel pipe pile rotation press-in operation demonstrated in the steel pipe pile W with a tip metal fitting is implemented, and the steel pipe pile W with a tip metal fitting and the steel pipe pile W added to this are driven to predetermined depth. If this work is completed, after setting the steel pipe pile W held by the steel pipe pile holding means 6B (or 6A) to the steel pipe pile rotation driving means 38 in the above-described manner, and joining the upper and lower steel pipe piles W, The steel pipe pile rotary press-fitting operation is performed again, and the steel pipe pile whose entire length is extended by the addition is driven to a predetermined depth.
[0034]
For example, when three or more steel pipe piles are to be installed while adding steel pipe piles during the continuous working time from the last train to the first train, steel pipe piles W are newly supplied to the empty steel pipe pile holding means 6A and 6B. It is necessary to keep it. In this steel pipe pile supply operation, the crane vehicle 70 shown in FIGS. 12 to 14 can be used. That is, a steel pipe pile W (supported tool 59 shown in FIG. 9 is attached in advance) carried in the vicinity of the steel pipe pile driving work site by a truck with a crane provided with a self-propelling means for a track for self-propelled on the track. Are gripped by the steel pipe pile gripping means 73 of the crane truck 70, and the steel pipe pile W is moved up and down and extended and contracted by the crane boom 72 of the crane truck 70, the swinging drive of the swinging bodies 78 and 81, and By rotating and driving the third rotating body 83, the third rotating body 83 is changed to a vertical posture and is supported by the steel pipe pile support means 43 of the empty steel pipe pile holding means 6A and 6B as shown in FIG.
[0035]
In this steel pipe pile replenishment operation, an accident in which the crane boom 72 of the crane truck 70 or the gripped steel pipe pile W contacts the overhead line 94 is detected by the overhead wire protection means 74 attached to the tip of the crane boom 72 of the crane truck 70. This can be prevented by the overhead wire shielding plate 89. Of course, the shield plate 89 for protecting the overhead wire is positioned directly above the steel pipe pile W by the cylinder unit 87 before moving the steel pipe pile W gripped by the steel pipe pile gripping means 73 to the vertical position near the overhead wire 94. The advancing position is moved to the covering position.
[0036]
When the steel pipe pile addition operation is completed, the self-propelled vehicle 1 is again supported on the rails 16a and 16b of the track by the track self-propelling means 4, and the track for the track mounted on the rails 16a and 16b of the track. With the ring-shaped chuck portion 40 of the steel pipe pile rotary crane means 38 transferred on the carriage 8, the steel pipe pile driving device is moved out of the steel pipe pile driving construction site using the track self-propelled means 4. Just do it.
[0037]
The supported tool 59 attached to the peripheral surface of the steel pipe pile W increases the rotational press-fitting resistance of the steel pipe pile W, and is therefore set in the steel pipe pile rotary press-fitting device 5 (steel pipe pile rotation drive means 38). After that, it is desirable to remove it by hitting it with a hammer.
[0038]
【The invention's effect】
As described above, the steel pipe pile driving device according to the present invention uses the self-propelled means for the track that can be moved up and down, so that the steel pipe pile driving device can be applied to a track such as a railroad crossing away from the steel pipe pile driving construction site on or near the track. It is possible to easily and safely move from the place where it can be entered to the construction site via the track. In other words, even if there is no suitable place where the self-propelled vehicle body can enter the track on or near the steel pipe pile driving construction site, the lining plate laying work should be performed only near the construction site. It is only necessary to apply lining plate laying work to drive the self-propelled vehicle body using normal grounding self-propelled means over the entire travel route from the entry place in the track such as a railroad crossing to the construction site. Compared with the case where it is not necessary, the labor and cost can be greatly reduced.
[0039]
Moreover, a steel pipe pile different from the steel pipe pile set in the steel pipe pile rotary press-in device can be brought into the construction site while being held by the steel pipe pile holding means, and the steel pipe pile set in the steel pipe pile rotary press-in device After the completion of placing, the steel pipe pile held by the steel pipe pile holding means is set in the steel pipe pile rotary press-fitting device by the steel pipe pile holding means, and the steel pipe pile is continuously driven in the state where it is added to the previously placed steel pipe pile. Installation work can be continued. Therefore, in the steel pipe pile driving work in the track which is generally a late night work, the steel pipe pile driving work can be efficiently performed within a limited time.
[0040]
Moreover, even if a crane is used for the steel pipe pile replenishment work to the steel pipe pile holding means, it is possible to reduce the dangerous slinging work on the suspended steel pipe pile at midnight and improve the safety of the work. Further, even when the steel pipe pile driving position is directly below the power feeding overhead line above the track, at the side position of the steel pipe pile rotary press-fitting device, that is, at a position laterally separated from the position immediately below the overhead line. Steel pipe piles to be added to the steel pipe pile holding means can be replenished, and this steel pipe pile can be supplied and set from the side to the steel pipe pile rotary press-fitting device directly below the overhead line by the steel pipe pile holding means. The time and effort required to move the steel pipe pile rotary press-fitting device from the position directly below the overhead line to the lateral side each time can be eliminated. It becomes easy to prevent.
[0041]
In addition, according to the structure of Claim 2, when a steel pipe pile holding means is made to support a steel pipe pile, a steel pipe pile receiving position and height, and the direction of a steel pipe pile support tool can be changed according to a situation. It becomes easy to supply the steel pipe pile supported by the steel pipe pile support tool through the shortest possible path to the steel pipe pile rotary press-fitting device. In other words, the work of supporting the steel pipe pile by the steel pipe pile holding means can be easily performed, and the steel pipe pile can be efficiently supplied to the steel pipe pile rotary press-fitting device by the steel pipe pile holding means.
[0042]
According to the structure of Claim 3, the steel pipe pile support tool of a steel pipe pile holding means is simply attached to the steel pipe pile to be used by attaching a supported tool made of pipe material or channel steel in advance. It can be supported easily and reliably, and the steel pipe pile supporter can be very simple with only an upward pin. Compared to the case of using an openable / closable gripping claw that grips the steel pipe pile as the steel pipe pile supporter. Thus, the steel pipe pile holding means can be configured at a very low cost, and the control of the steel pipe pile holding means can be easily and easily performed.
[0043]
According to the configuration of claim 4, in addition to the steel pipe pile set in the steel pipe pile rotary press-fitting device, two steel pipe piles are respectively held on the left and right sides of the steel pipe pile rotary press-fitting device and conveyed to the construction site. As a result, the steel pipe pile can be added more efficiently.
[0044]
According to the configuration described in claim 5, even when a steel pipe pile is driven directly under the power feeding overhead line above the track, an accident in which the steel pipe pile is caught on the overhead line by the overhead wire protection shielding plate is prevented in advance. It is possible to improve the safety of work. In this case, according to the structure of Claim 6, when hanging a steel pipe pile in the said steel pipe pile rotary press-in apparatus with the crane in the place away from the steel pipe pile driving construction site, it waits for the said shielding board for overhead wire protection By moving it to the position, the steel pipe pile can be suspended safely and easily without being obstructed by the overhead wire protection shielding plate. Furthermore, according to the structure of Claim 7, since it can be made to stand by reducing the ground clearance of the said shield for protection of an overhead wire at the time of other than the steel pipe pile placement work, to the steel pipe pile placement construction site There is no possibility that the overhead wire protection shielding plate will get in the way when traveling.
[0045]
According to the structure described in claim 8, when the steel pipe pile driving device is used to travel on the track using the track self-running means, the steel pipe pile holding means that supports the steel pipe pile or the set steel pipe It is no longer necessary to support the entire steel pipe pile rotary press-fitting device including the piles in a cantilevered manner on the self-propelled vehicle body, and the weight of the entire steel pipe pile rotary press-fitting device is carried on the track via the track carriage Therefore, the structure of the orbital self-propelled means becomes simple and the safety is improved. In this case, according to the structure of Claim 9, since it will drive | work in the state which the track | truck bogie and the steel pipe pile set to the steel pipe pile rotary press-fit apparatus fitted in the up-down direction, especially track trolley | bogie. Even if the connecting means between the steel pipe pile rotary press-fitting device is not provided, there is no fear that both of them will come off unexpectedly during traveling, and it is possible to travel safely.
[0046]
Furthermore, according to the steel pipe pile driving method according to claim 10, when the steel pipe pile driving apparatus of the present invention is used to drive the steel pipe pile in the track or in the vicinity thereof, the steel pipe pile supplying crane vehicle is provided. The steel pipe pile is replenished to the vacant steel pipe pile holding means at the site, but when this steel pipe pile is replenished, the steel pipe pile gripping means is used instead of hanging the steel pipe pile like a general crane truck. Since the steel pipe pile can be gripped and replenished to the steel pipe pile holding means, the steel pipe pile can be safely replenished even at a site where there is an overhead line. In other words, it is possible to efficiently and safely perform the steel pipe pile addition work even at a site where there is an overhead line above. When carrying out this construction method, according to the configuration of claim 11, when the crane for steel pipe pile supply performs the work of supplying the steel pipe pile to the steel pipe pile holding means of the steel pipe pile driving device, the overhead wire is hooked. Accidents can be prevented in advance by the overhead wire shielding plate, and work can be performed more safely.
[Brief description of the drawings]
FIG. 1 is a side view showing an entire steel pipe pile driving device in use.
FIG. 2 is a plan view showing the entire steel pipe pile driving device.
FIG. 3 is a side view showing the entire steel pipe pile driving apparatus in a running state on a track.
FIG. 4 is a side view showing a track self-propelled means and a track carriage used when traveling on a track.
FIG. 5 is a rear view showing a driven wheel unit of track self-propelled means.
FIG. 6 is a front view showing a drive wheel unit of the track self-propelled means.
FIG. 7 is a plan view showing the same drive wheel unit.
FIG. 8 is a plan view showing a steel pipe pile holding means on one side.
FIG. 9A is a plan view showing a steel pipe pile support of the steel pipe pile holding means and a supported tool attached to the steel pipe pile, and FIG. B is a support of the steel pipe pile support on the steel pipe pile side. It is a side view which shows the state just before engaging with a tool.
FIG. 10 is a side view showing overhead wire protection means.
FIG. 11 is a plan view of a track carriage.
FIG. 12 is a side view showing a steel pipe pile supply crane vehicle.
FIG. 13 is a plan view of the crane vehicle.
FIG. 14 is a side view showing the steel pipe pile gripping means and the overhead wire protecting means of the crane vehicle.
FIG. 15 is a side view showing a state in which a steel pipe pile with a tip hardware is set.
FIG. 16 is a side view showing a state in which a steel pipe pile to be added and used in the steel pipe pile holding means is set.
FIG. 17 is a side view showing a state in which a track carriage is set.
FIG. 18 is a side view showing a running state by the grounding self-running means.
FIG. 19 is a side view showing a running state by the track self-running means.
FIG. 20 is a side view showing a preparatory work state at a construction site.
FIG. 21 is a side view showing a finished state of the steel pipe pile with the tip hardware.
FIG. 22 is a side view showing a working state of adding steel pipe piles.
[Explanation of symbols]
1 Self-propelled body
3 Self-propelled means for grounding
4 Self-propelled means for track
5 Steel pipe pile rotary press-fitting device
6A Steel pipe pile holding means
6B Steel pipe pile holding means
7 Overhead protection measures
8 Track dolly
9 Driven wheel unit
10 Drive wheel unit
14a Follower wheel
14b driven wheel
15 Cylinder unit for raising / lowering driven wheel
16a Rail of the track
16b Rail of the track
25a Drive wheel
25b Drive wheel
27 Driving wheel drive motor
28 Cylinder unit for raising and lowering drive wheel
33 Supporting means for rotary press-fitting of steel pipe piles
34 leader
37 Cylinder unit for press-fitting of steel pipe pile rotation drive means
38 Steel pipe pile rotation drive means
42 Drive mechanism of steel pipe pile support
43 Steel pipe pile support
46 Lifting body
48 Cylinder unit for first arm drive
49 First Arm
51 Cylinder unit for second arm drive
52 Second arm
56 upward pin
59 Supported tools
61 Pantograph link mechanism
63 Shielding plate for overhead wire protection
64 Cylinder unit for driving the pantograph link mechanism
65 Wheel of truck for track
66 Recessed part for fitting the lower end of steel pipe pile of track dolly
67 Suspension for hanging track dolly
70 Steel crane for crane supply
72 Crane boom
73 Steel pipe pile gripping means
74 Overhead wire protection means
85 Steel pipe pile gripping claws that can be opened and closed
87 Cylinder unit for exit / retraction drive of shield for overhead wire protection
89 Shielding plate for overhead wire protection
90 Grounding board that can be raised and lowered
92 Grounding board that can be raised and lowered

Claims

A self-propelled means for track provided on a self-propelled vehicle body having a self-propelled means for grounding, a steel pipe pile rotary press-fitting device supported on the front part of the self-propelled vehicle body, and a steel pipe pile holding means The steel pipe pile holding means is composed of a steel pipe pile support that supports the steel pipe pile and a drive mechanism that moves the steel pipe pile support in a three-dimensional direction, and the steel pipe pile support is supported by the steel pipe pile support. A steel pipe pile driving device capable of being set to the steel pipe pile rotary press-fitting device from a side position of the steel pipe pile rotary press-fitting device.

The drive mechanism of the steel pipe pile holding means includes a lift body provided in a lateral position of the steel pipe pile rotary press-fitting device, and a first arm that extends forward from the lift body and is driven to swing horizontally. And a second arm that is supported at the tip of the first arm and is driven to swing horizontally, and the steel pipe pile support is attached to the tip of the second arm. Pile driving device.

The steel pipe pile support tool of the said steel pipe pile holding means is provided with the upward pin which engages with the supported tool attached to the outer surface of a steel pipe pile upwards, and supports the said steel pipe pile. The steel pipe pile driving device described.

The said steel pipe pile holding | maintenance means is a steel pipe pile placing apparatus in any one of Claims 1-3 each arrange | positioned at the left-right both sides of the said steel pipe pile rotary press-fitting apparatus.

The steel pipe pile placing apparatus in any one of Claims 1-4 provided with the shielding board for overhead wire protection located above the steel pipe pile set to the said steel pipe pile rotary press-fit apparatus.

The overhead wire protection shielding plate is supported so as to be movable between an action position located directly above the steel pipe pile set in the steel pipe pile rotary press-fitting device and a standby position away from the action position. Item 6. The steel pipe pile driving device according to Item 5.

The overhead wire protection shielding plate is supported by a pantograph link mechanism at the upper end of the steel pipe pile rotary press-fitting device so as to be movable in parallel between the operating position and a standby position away from the operating position rearward and downward. The steel pipe pile driving device according to claim 6.

The steel pipe pile driving device according to any one of claims 1 to 7, wherein a track carriage for supporting the steel pipe pile rotary press-fitting device is detachably provided.

The track bogie is detachably suspended from the lower end of the steel pipe pile rotary press-fitting device, and includes a concave part into which the lower end of the steel pipe pile set in the steel pipe pile rotary press-fitting device is fitted. The steel pipe pile driving device according to claim 8, wherein the steel pipe pile rotary press-fitting device is supported via a steel pipe pile having a lower end fitted to the steel pipe pile.

A steel pipe pile driving method using a steel pipe pile driving device and a crane truck for supplying steel pipe piles, wherein the steel pipe pile driving device is provided on a self-propelled vehicle body provided with a self-propelling means for grounding. A self-propelled means for track, a steel pipe pile rotary press-fitting device supported at the front part of the self-propelled vehicle body, and a steel pipe pile holding means, the steel pipe pile holding means supporting the steel pipe pile And a driving mechanism for moving the steel pipe pile support tool in a three-dimensional direction, and the steel pipe pile rotary press-fitting device from the lateral position of the steel pipe pile rotary press-fitting device. The steel pipe pile supply crane vehicle is configured to support the steel pipe pile gripping means at the tip of the crane boom so as to be capable of turning in an arbitrary direction.
The steel pipe pile is set in the steel pipe pile rotary press-fitting device, and in a state where the steel pipe pile used in addition to the steel pipe pile holding means is supported, the self-propelled vehicle body is supported on the track by the track self-propelled means, The self-propelled vehicle is driven to the steel pipe pile driving construction site by the self-propelled means for the track,
After placing the steel pipe pile set in the steel pipe pile rotary press-fitting device, the steel pipe pile supported by the steel pipe pile holding means is set in the steel pipe pile rotary press-fitting device by the steel pipe pile holding means. The steel pipe piles that have been gripped by the steel pipe pile gripping means of the steel pipe pile supply crane vehicle are replenished and supported by the steel pipe pile holding means. The steel pipe pile construction method that is characterized.

When the steel pipe pile gripped by the steel pipe pile gripping means is in a vertical posture at an appropriate height above the ground, the overhead wire protection shielding plate positioned immediately above the steel pipe pile is connected to the tip of the crane boom. The steel pipe pile driving construction method according to claim 10, which is provided in