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JP3829012B2 - Hazard indication device and danger indication / monitoring device such as rock collapse - Google Patents
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JP3829012B2 - Hazard indication device and danger indication / monitoring device such as rock collapse - Google Patents

Hazard indication device and danger indication / monitoring device such as rock collapse Download PDF

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Publication number
JP3829012B2
JP3829012B2 JP10400298A JP10400298A JP3829012B2 JP 3829012 B2 JP3829012 B2 JP 3829012B2 JP 10400298 A JP10400298 A JP 10400298A JP 10400298 A JP10400298 A JP 10400298A JP 3829012 B2 JP3829012 B2 JP 3829012B2
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Prior art keywords
rope
slope
tension
wire rope
danger
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JP10400298A
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JPH11280028A (en
Inventor
文信 松本
元司 田代
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Tokyo Rope Manufacturing Co Ltd
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Tokyo Rope Manufacturing Co Ltd
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  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Emergency Alarm Devices (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、法面に施工した落石等防護工に随時に付設して落石等の危険を検知し、又は法面自体に施し崩落等の危険を検知して表示し、遠隔地でも監視可能として法面崩落等の危険表示装置及び危険表示・監視装置に関するものである。
【0002】
【従来の技術】
従来、落石等の恐れがある法面には、法面に縦横間隔をおき配置した多数のワイヤロープを、アンカーで支持しロープ交差部をクリツプ等で結合するなどしてネツト状に張設し、又は、法面に金網を敷き詰め、多数のワイヤロープを同様にネツト状に張設して、法面の落石等を長期にわたり抑制して防護する落石等防護工が施工されている。この落石等防護工は、長期にわたる浮石等の移動等によりロープ張力が次第に増加して落石等の危険が生じる恐れがあるため、定期的に検査する必要がある。また、ワイヤロープ中に予め歪ゲージを介装して張設し、歪ゲージによりロープ張力を検出して、連結したテレビ等によつて長期的にわたり崩落等の危険を遠隔地で監視する監視装置が開発されている。
【0003】
また、表層崩落等の恐れがある法面では、表層自体に各種の検出機器を埋設するとともに、その検出機器に解析手段を連結して、長期的にわたり法面の移動等を経時的に観測して崩落メカニズム等を学術的な解明がなされている。
【0004】
【発明が解決しようとする課題】
前記の落石等防護工に付設した監視装置は、施工に際し予めワイヤロープ中に介装した歪ゲージによつて長期にわたりロープ張力を検出して監視する構造になつているため腐食し易く信頼性に欠ける。また、張設したワイヤロープ中の歪ゲージの取り替え交換等に手数、手間を要し必要に応じて随時に付設することが難しい。施工現場近くで崩落等の危険を直接的に察知できないなどの課題がある。また、前記のような学術的な解明手段は、法面における基本的な崩落メカニズム等の解明には効果的であるが、随時に施工したり施工現場近くで崩落等の危険を直接的に察知する手段としては実用性がないなどの課題がある。
【0005】
本発明は、前記のような課題を解決するために開発されたものであり、その目的とする処は、ロープ側部にロープ張力検出器を取り付け、建て込んだ危険表示器さらに遠隔監視装置に連結して、随時に容易に施工して法面崩落等の危険を施工現場近くで察知したり遠隔監視も可能にするなど、施工性とともに法面崩落等の危険表示性能、信頼性を向上した法面崩落等の危険表示装置及びその危険表示・監視装置を提供するにある。
【0006】
【課題を解決するための手段】
本発明は、法面に縦横間隔をおき配置した多数のワイヤロープをアンカー及び結合してネツト状に張設し、又は法面に金網を敷き詰め、多数のワイヤロープを同様にネツト状に張設した落石等防護工において、ワイヤロープの側部に着脱可能に取り付けてロープ張力が所定値に高まると作動する複数の着脱式ロープ張力検出器と、法面に建て込み各ロープ張力検出器に作動線を介して連結し前記の作動によつて危険表示に切り変わる危険表示器とを具備し、しかも前記着脱式ロープ張力検出器が、ワイヤロープの側部に間隔をおき着脱される一対のガイドロールと、両ガイドロール間のワイヤロープを着脱可能に支持してロープ張力に抗しワイヤロープを引き込み湾曲させる張力検出部材と、張力検出部材をバネ付勢してワイヤロープとともに引き込みロープ張力が所定値に高くなると作動する作動手段とを具備し、前記張力検出部材が、両本体の中央部間に固設した一方のバネ受けに挿通したガイド扞付きの挟持部材と、挟持部材にねじで取り付けてワイヤロープを挟持る他方の挟持部材等からなっていることを特徴としている。
落石等防護工のワイヤロープ側部に複数の着脱式ロープ張力検出器を取り付け危険表示器を建て込み及び連結して、施工中の落石等防護工の要所に複数組のロープ張力検出器と危険表示器を随時に容易に付設して、落石等防護工の施工現場近くでかつ複数箇所で落石等の危険を直接的に察知可能とし、施工性とともに落石等の危険表示性能、信頼性を高めている。ことに、一対のガイドロールと張力検出部材により、ロープ側部にロープ張力検出器を随時に容易に取り付け、また、張力検出部材の作動手段により、ロープ張力が所定値に高くなると機械的に精度良く作動可能にするなど、着脱性能とともに作動性能、信頼性を高めている。
【0007】
法面に上下間隔をおき複数段に打設した複数の抵抗板付きアンカーと、各抵抗板付きアンカーに連結や連通し外端部をアンカーして張設したワイヤロープと、各ワイヤロープの側部に着脱可能に取り付けてロープ張力が所定値に高まると作動する複数の着脱式ロープ張力検出器と、法面に建て込み各ロープ張力検出器に作動線を介して連結し前記の作動によつて危険表示に切り変わる危険表示器とを具備し、しかも前記着脱式ロープ張力検出器が、ワイヤロープの側部に間隔をおき着脱される一対のガイドロールと、両ガイドロール間のワイヤロープを着脱可能に支持してロープ張力に抗しワイヤロープを引き込み湾曲させる張力検出部材と、張力検出部材をバネ付勢してワイヤロープとともに引き込みロープ張力が所定値に高くなると作動する作動手段とを具備し、前記張力検出部材が、両本体の中央部間に固設した一方のバネ受けに挿通したガイド扞付きの挟持部材と、挟持部材にねじで取り付けてワイヤロープを挟持る他方の挟持部材等からなっていることを特徴としている。
抵抗板付きアンカーの複数段の建て込み、ワイヤロープの連結や連通及び外端部のアンカー、複数の着脱式ロープ張力検出器を取り付けと危険表示器を建て込み及び連結により、比較的に簡単な機構で随時に容易に施工され、法面近くでかつ複数箇所で崩落等の危険を直接的に察知可能とし、施工性とともに法面崩落等の危険表示性能、信頼性を高めている。ことに、一対のガイドロールと張力検出部材により、ロープ側部にロープ張力検出器を随時に容易に取り付け、また、張力検出部材の作動手段により、ロープ張力が所定値に高くなると機械的に精度良く作動可能にするなど、着脱性能とともに作動性能、信頼性を高めている。
【0008】
【0009】
さらに、前記の法面崩落等の危険予知装置において、ロープ張力検出器の作動手段に対設した作動スイツチと、作動スイツチに信号線を介して連結した危険監視手段とからなる遠隔監視装置を連設した法面崩落等の危険予知・監視装置に特徴を有し、この遠隔監視装置により法面崩落等の危険を遠隔地でも察知して監視可能とするなど、総合的に優れた法面崩落等の危険表示性能さらには監視性能、信頼性が得られる。
【0010】
【発明の実施の形態】
図1に本発明の法面の落石等防護工に施した危険表示装置及び危険表示・監視装置の第1実施例、図2に法面自体に施した危険表示装置及び危険表示・監視装置の第2実施例、図3に着脱式ロープ張力検出器の一実施例、図4に危険表示器の一実施例、図5にアンカーの一実施例、図6に他のアンカーの実施例、図7にロープ交差部のクリツプの一実施例、図8に抵抗板付きアンカーの実施例を示している。
図中Gは法面、Sは崩落等の恐れがある浮石等、1は落石等防護工、1a,1bは縦横に張設したワイヤロープ、2,3はワイヤロープの端部又は中間部のアンカー、4は抵抗板付きアンカー、5はロープ交差部のクリツプ、6は金網、10はガイドローラ15や張力検出部材16及び作動手段17等からなる着脱式ロープ張力検出器、20は法面に建て込んだ危険表示器、F,F1はバネ付勢とロープ張力、30は作動スイツチ31や信号線32及び監視手段34等からなる遠隔監視装置である。
【0011】
図示の実施例は、法面Gに縦横間隔をおき配置した多数のワイヤロープ1a,1bをアンカー2,3し及び結合して各ワイヤロープをネツト状に張設し、又は法面に金網6を敷き詰め、多数のワイヤロープを同様にネツト状に張設した落石等防護工1において、ワイヤロープ1a,1bの側部に着脱可能に取り付けロープ張力F1が所定値に高まると作動する複数の着脱式ロープ張力検出器10と、法面に建て込み各ロープ張力検出器に作動線19を介して連結し前記の作動によつて危険表示に切り変わる危険表示器20とを具備したことを特徴とする法面崩落等の危険表示装置になつている。
【0012】
法面に上下間隔をおき複数段に打設した複数の抵抗板4b付きアンカー4と、各抵抗板付きアンカーに連結又は連通して外端部をアンカー2して張設したワイヤロープ1a,1bと、各ワイヤロープに着脱可能に取り付けてロープ張力F1が所定値に高まると作動する複数の着脱式ロープ張力検出器10と、法面に建て込み各ロープ張力検出器に作動線を介して連結し前記の作動によつて危険表示に切り変わる危険表示器20とを具備したことを特徴とする法面崩落等の危険表示装置になつている。
【0013】
また、前記の法面崩落等の危険表示装置において、ロープ張力検出器10は、ワイヤロープ1a,1bの側部に間隔をおき着脱される一対のガイドロール15と、両ガイドロール間のワイヤロープを着脱可能に支持してロープ張力F1に抗し引き込み湾曲させる張力検出部材16と、張力検出部材をバネ付勢Fしてワイヤロープを引き込みロープ張力が所定値に高くなると危険表示に作動する作動手段17を具備したことを特徴とする法面崩落等の危険表示装置になつている。
【0014】
さらに、前記の法面崩落等の危険表示装置において、ロープ張力検出器10の作動手段17に対設した作動スイツチ31と、作動スイツチに連結した信号線32と、信号線に連結して危険表示をする監視手段34とからなる遠隔監視装置3を連設したことを特徴とする法面崩落等の危険表示・監視装置になつている。
【0015】
さらに詳述すると、第1実施例の落石等防護工1は、図1に示すように落石等の恐れのある法面Gに施工し、落石等に対応した所要の耐力を有する各種の強靭なワイヤロープ1a,1bや金網6を適用し、法面に多数のワイヤロープ1a,1bを適度の間隔をおき縦横に配置して多数のアンカー2や3を打設し、各ワイヤロープの両端部や中間部をアンカー2,3し、各ロープ交差部をクリツプ5等で結合し、各ワイヤロープをネツト状に張設するなどして施工される。又は、法面Gに金網6を敷き詰め、多数のワイヤロープ1a,1bを同様にアンカー2,3しクリツプ5により結合して、金網6の敷き詰めとともに各ワイヤロープをネツト状に張設するなどして施工される。さらに、所要のワイヤロープ1a,1bの所要位置に後述のロープ張力検出器10及び危険表示器20さらには遠隔監視装置30を連設する。
【0016】
着脱式ロープ張力検出器10は、図3に示すように複数のボルト・ナツト12やスペーサー13等で所定の間隔に組み立てた一対の本体11を有し、本体の一側部間に一対のガイド溝付きガイドロール15を適度の間隔で回転可能に軸支して、両本体11の中央部間にボルト・ナツト12で固設した一方のバネ受け17aに挿通したガイド扞16b付きの挟持部材16aと、挟持部材にねじ16dで取り付けてワイヤロープ1a,1bを挟持る他方の挟持部材16c等からなる張力検出部材16を設け、さらに、張力検出部材16のガイド扞16bに嵌装又は螺合した圧縮バネ17bや他方のバネ受け17c、ナツト17d、及び挟持本体16aに突設し作動線19のインナー線19aに連結した作動扞17e等からなる作動手段17を設けて、ロープ張力F1に対抗する圧縮バネ17bのバネ付勢Fで張力検出部材16をワイヤロープ(ガイドロール15間)とともに図示上方に引き込み湾曲させて着脱可能に取り付けて支持する構造になつている。
【0017】
前記のロープ張力検出器10は、図示のように張設したワイヤロープ1aや1bに両ガイドロール15を当て、張力検出部材16でガイドロール間のワイヤロープを挟持し、作動手段17のナツト17dを適度に締め込み割りピン等で回り止めして、圧縮バネ17bのバネ付勢Fを所要値にセツトすることにより、両ガイドロール15で支持したワイヤロープの中間部を張力検出部材16で適度に引き込み湾曲させた3点支持とし、ロープ張力F1に対しバネ付勢Fを均衡させることにより、随時にワイヤロープの所要位置にロープ張力検出器10を着脱可能に容易に取り付けて適用する。落石S等の移動によりロープ張力F1が適度に高くなると、張力検出部材16がワイヤロープとともにバネ付勢Fに抗して図示下方(図3A参照)に移動し、ロープ張力が所定値に達すると挟持部材16aに付設した作動扞17e及び作動線19のインナーワイヤ19aを介し機械的に作動して危険表示器20を危険表示に切り変える。また、作動扞17eにより作動スイッチ(開閉スイッチ)31が作動して信号線32を閉路し遠隔監視装置30を作動する。バネ付勢Fは、ロープ張力F1がワイヤロープの耐力に達する前に作動するように設定する。また、ロープ張力検出器10に付設した適宜の逆止手段(図示省略)によつてその作動が継続される。さらに、図示の張力検出部材16は、必要に応じワイヤロープを掛けて引き込み支持するフツク等の構造も適用される(図示省略)。
【0018】
危険表示器20は、図4に示すように法面Gの適所に建て込むロッド21と、ロッド頭部にバンド22aをボルト・ナツト22b等で取り付けるカバーケース23と、カバーケースの表面板24と、カバーケースに内臓しバネ26等で図示上方にバネ付勢して表面板内に対設した危険表示板25、及び危険表示板の下部に突設して作動線19のインナーワイヤ19aに連結した作動杆27等を備え、例えば表面板24に適宜幅の透明部24aや白色部24bを多数交互に形成し、危険表示板25に適宜幅の白色部25aや黄色や赤色の危険警戒色部25b(必要に応じ蛍光塗料を使用して夜間も遠視可能にする)を多数交互に形成して、通常は危険表示板25がバネ付勢で図示上方に配置されて各白色部25aが表面板24の透明部24aに整合し、表面板24の全面が白色の安全表示となる。着脱式ロープ張力検出器10が作動すると、作動杆27e及び作動線19のシンナーワイヤ19aを介し危険表示板25の危険警戒色部25bが表面板24の透明部24aに整合して、危険表示に自動で切り変わる構造になつている。なお、必要に応じ危険表示板25の下降後にその上昇を阻止する適宜の逆止手段を付設する(図示省略)。表面板24と危険表示板25による表示手段は、図示例に限らず遠くから目視可能な構造で実施される。
【0019】
危険監視装置30は、例えば図3及び図1に示すようにロープ張力検出器10に付設した開閉スイッチ等の作動スイッチ31と、作動スイッチによつて開閉路される信号線32と、信号線に連結して作動されるコントローラー33と、コンローラーに連結して作動されるテレビ等の表示器34や、記録器35、警報機36等からなり、作動スイッチ31による信号線32の閉路によつてコンローラー33が作動し、この信号に基づき表示器34はロープ張力検出器10ごとの崩落等の危険を表示し、記録器35に具体的に記録し、警報機36で警報(赤色ランプやブザー等)するなど落石等防護工の部分的な危険状態を遠隔地で容易に察知して監視する構造になつている。
【0020】
図1に示す落石等防護工1のワイヤロープ1a,1bにおいて、そのロープ端部には、図5に示すようにアンカーロツド2aの頭部に鍔部2bや環部2c等を設けたアンカー2等を適用し、支持板2dを嵌装して法面Gに打ち込み膨脹性充填材jを充填するなどしてアンカー力を高め、環部2cにワイヤロープの端部を連結する構造になつている。ロープ中間部には、図6に示すようにアンカーロツド3aと、そのボルト部3bに嵌装する対のロープ溝付き挟持板3cと、連結ボルト3d及び複数のナツト2e等からなるアンカー3等を適用し、法面Gにアンカーロツド3aを打ち込み周囲に適宜の膨脹性充填材jを充填するなどしてアンカー力を高め、ボルト部3bに両挟持板3cと連結ボルト3dを嵌挿して、ナツト2eで締め込むことにより、両挟持板でワイヤロープ1a,1bを挟持してアンカーする構造になつている。また、ロープ交差部の結合には、図7に示すようにロープ溝付き支持板5aと、対のU字状部材5b,5bと、複数のナツト5cからなるクリツプ5等を適用し、ロープ交差部に装着してナツトで締め込み支持板とU字状部材で挟持して結合する構造になつている。これらのアンカー及びクリツプは、図示例に限らずさらに多様な構造を適用できる。
【0021】
図1に示すように落石S等の恐れのある法面Gに施工した落石等防護工1において、ロープネツトが変形したり又は雨季等において必要と認められると、所要のワイヤロープ1a,1bの端部や中間部の側部に、ロープ張力検出器10を前記のように着脱可能に取り付けて、法面の適所に危険表示器20を建て込み作動線19で連結し、落石等防護工においてその所要のワイヤロープの端部や中間部に付設し法面崩落等の危険予知表示装置として複数組を付設される。さらに、必要に応じ各ロープ張力検出器10に信号線32を介し遠隔監視装置30を連結して法面崩落等の危険表示・監視装置として付設される。
【0022】
前記の法面崩落等の危険表示装置及び危険表示・監視装置は、施工されている落石等防護工1において、前記のように必要に応じ随時に所要のワイヤロープ1a,1bにかつその端部や中間部の側部にも容易に付設し複数組の危険表示・監視装置として組み込み、さらに必要に応じ危険表示・監視装置を連結して容易に付設され、取り替え交換や撤去も容易であるなど優れた施工性を有する。また、危険表示装置の着脱式ロープ張力検出器10は、随時に落石等防護工1のロープ側部に複数取り付けられ、腐食等による格別な悪影響もなくロープ張力F1を直接に感知して機械的に作動するなど優れた信頼性が得られる。さらに、各危険表示器20は、法面Gに建て込みロープ張力検出器10に連結して落石等防護工1の要所に配置され、各部に生じる危険状態を確実に表示し、監視人や通行人が落石等防護工の近くで各部の危険状態を容易に目視して精度良く察知できる。危険表示器20に連結した危険表示・監視装置によつて、前記の危険状態を遠隔地でも容易にかつ的確に確認できるなど、優れた危険表示性能さらには遠隔確認性能が得られる。前記のような法面崩落等の危険表示や遠隔確認によつて退避等の対策が可能となり、また落石等防護工1を局部的に補修するなど、その破壊や崩落等を防止するなどの対応策が効果的に可能となる。
【0023】
図2に示す法面崩落等の危険表示装置及びその危険表示・監視装置は(第2実施例)、表層自体の崩落等の恐れがある法面Gに適用し、図示のように法面Gのほぼ全面にわたり少なくとも上下間隔をおき複数(図示例は12個)の抵抗板4b付きアンカー4を複数段(図示例は6段)に打設し、各アンカー4にワイヤロープ1a,1bの端部や中間部を連結又は連通し縦や横に配置して、各ワイヤロープの外端部をアンカー2(例えば図5参照)して張設し、各ワイヤロープに好ましくは端部近くの側部に着脱式ロープ張力検出器10(例えば図3参照)を同様に着脱可能に取り付け、法面に複数の危険表示器20を建て込み作動線19を介して連結し法面崩落等の危険表示装置として同様に複数組施工している。必要に応じ各着脱式ロープ張力検出器10に信号線32を介し遠隔監視装置30(例えば図1参照)を連結し法面崩落等の危険表示・監視装置とし連結して施工した構造になつている。
【0024】
また、前記の抵抗板4b付きアンカー4は、図8に示すようにアンカーロッド4aに抵抗板4aを適宜の手段で設け、頭部に鍔4cや環部4dを設けて、法面Gの所要位置にアンカーロッド4aを適宜の手段で打設し、その環部4dにワイヤロープ1a,1bの端部や中間部を連結又は連通して縦や横に張設可能とし、配置抵抗板4aの抵抗によつて表層とともに移動可能とし、法面Gの移動等に伴うアンカー4及びワイヤロープ1a,1bの移動に基づくロープ張力F1の増加を、各着脱式ロープ張力検出器10で検出して作動する構造になつている。
【0025】
図2に示す法面崩落等の危険表示装置及びその危険表示・監視装置は、前記のように法面Gに複数の抵抗板4a付きアンカー4を上下複数段に打設し、各アンカーにワイヤロープ1a,1bの端部や中間部を連結や連通して外端部をアンカー2して張設し、各ワイヤロープの端部近くの側部に着脱式ロープ張力検出器10を着脱可能に取り付け、複数の危険表示器20を法面に建て込み作動線19を介し連結することにより、法面に複数組の危険表示装置を随時に施工し、必要に応じ信号線32を介し遠隔監視装置30を連結して法面崩落等の危険表示・監視装置として施工する。法面Gに随時に容易に施工しまた取り替え交換や撤去も容易であるなど、比較的に簡単な装置で優れた施工性を有する。また、上下複数段に打設した各抵抗板4a付きアンカー4により、表層自体の移動変位等を的確に精度良く検出して各ワイヤロープ1a,1bのロープ張力F1を増加し、各着脱式ロープ張力検出器10がそのロープ張力を直接的に検出して作動し、法面に建て込んだ各危険表示器20によつて法面崩落等の各部の危険状態を表示する。遠隔監視装置30によつてその崩落等の危険状態を遠隔地で監視できるなど、優れた法面崩落等の危険表示性能や遠隔監視性能、信頼性が得られる。抵抗板付きアンカー4やワイヤロープ1a,1bの個数や配置等は、法面の広がりなどに対応させて図示例に限らず多様な態様で施工される。
【0026】
【発明の効果】
本発明は、前述のように構成され法面に施工した落石等防護工において、その所要のワイヤロープにおける端部や中間部の側部に複数の着脱式ロープ張力検出器を取り付け、複数の危険表示器を法面に建て込み連結することにより、施工ずみの落石等防護工の要所に複数組のロープ張力検出器及び危険表示器を随時に付設したり取り替え交換や撤去が容易に行われる。また、落石等防護工の施工現場近くでかつ複数箇所で崩落等の危険が直接的に精度良く検出されて表示され、施工性とともに法面崩落等の危険表示性能、信頼性を著しく向上している。
【0027】
また、法面に複数の抵抗板付きアンカーを上下複数段に打設して、各抵抗板付きアンカーにワイヤロープを連結又は連通し外端部をアンカーして張設し、各ワイヤロープの側部に着脱可能に取り付けロープ張力が所定値に高まると着脱式ロープ張力検出器を設け、法面に危険表示器を建て込み作動線を介し連結して施工したことにより、比較的に簡単な機構によつて随時に容易に施工したり取り替え交換や撤去も可能とし、前記と同様に法面近くの複数箇所で崩落等の危険が直接的に精度良く表示され、施工性とともに法面自体の崩落等の危険表示性能、信頼性を著しく向上している。
【0028】
また、前記の法面崩落等の危険表示装置において、ロープ張力検出器の一対のガイドロールと張力検出部材により、随時にロープ側部にロープ張力検出器を容易に取り付けたり取り替え交換や撤去も容易とし、張力検出部材の作動手段により、ロープ張力が所定値に高くなると機械的に精度良く作動可能にするなど、着脱性能とともに作動性能、信頼性を著しく高めている。ロープ張力検出器の作動手段に対設した作動スイツチと、作動スイツチに信号線を介して連結した危険監視手段とからなる遠隔監視装置を連設した法面崩落等の危険予知・監視装置に構成したことにより、前記の法面崩落等の危険を遠隔地でも同様に察知して監視可能とするなど、総合的に法面崩落等の危険表示性能さらには監視性能、信頼性を著しく向上している。また、前記の法面崩落等の危険表示や監視より、避難したり補修するなどの対応が可能となつて安全性が効果的に高められる。
【図面の簡単な説明】
【図1】 本発明の法面崩落等の危険予知表示装置及びその危険予知表示・監視装置の第1実施例を示す平面図
【図2】 第2実施例を示す平面視構図
【図3】 ロープ張力検出器の一実施例を示す側面図(A)と平面図(B)及びX−X線部分の断面図(C)
【図4】 ロープ張力検出器に連結する表示器の一実施例を示す正面図(A)と上部断面図(B)及び上部側視図(C)
【図5】 打設したアンカーの一実施例を示す正面図(A)及びその側面図(B)
【図6】 アンカーの他の実施例を示す側視図(A)及びその平面図(B)
【図7】 クリップの一実施例を示す正面図(A)及びその平面図(B)
【図8】 抵抗板付きアンカーの一実施例を示す側視図(A)及び平面図(B)である。
【符号の説明】
G 法面
1 落石等防護工
1a、1b ワイヤロープ
2,3 アンカー
4 抵抗板つきアンカー
6 金網
10 ロープ張力検出器
11 本体
15 ガイドロール
16 張力検出部材
16a 挟持部材
16b ガイド扞
16c 挟持部材
16d ねじ
17 作動手段
17a バネ受け
19 作動線
20 危険表示器
30 遠隔監視装置
31 作動スイッチ
32 信号線
34 監視手段
F バネ付勢
F1 ロープ張力
[0001]
BACKGROUND OF THE INVENTION
The present invention is attached to the protective work such as falling rocks constructed on the slope at any time to detect the danger of falling rocks, etc., or detected and displayed the danger of falling on the slope itself, and can be monitored even in remote areas. The present invention relates to a danger display device such as a slope failure and a danger display / monitoring device.
[0002]
[Prior art]
Conventionally, slopes with the potential of falling rocks, etc., are stretched in a net shape by supporting a number of wire ropes arranged at vertical and horizontal intervals on the slope with anchors and connecting rope intersections with clips. Or, a protective work such as falling rocks is constructed in which a wire mesh is laid on the slope and a large number of wire ropes are similarly stretched in a net shape to prevent and prevent the falling rock on the slope for a long time. This rockfall protection work needs to be regularly inspected because rope tension may gradually increase due to long-term movement of floating stones, etc., resulting in the risk of rockfall. In addition, a monitoring device is installed in the wire rope with a strain gauge in advance, detects the rope tension with the strain gauge, and monitors the danger of collapse, etc. over a long period of time with a connected television etc. Has been developed.
[0003]
In addition, for slopes where there is a risk of collapse of the surface layer, various detection devices are embedded in the surface layer itself, and analysis means is connected to the detection device to observe the movement of the slope over time over a long period of time. Academic clarification of the collapse mechanism has been made.
[0004]
[Problems to be solved by the invention]
The monitoring device attached to the protective work such as rock fall is easy to corrode because it has a structure in which the rope tension is detected and monitored over a long period by the strain gauge previously installed in the wire rope. Lack. In addition, it takes time and effort to replace and replace the strain gauge in the stretched wire rope, and it is difficult to attach it as needed. There are issues such as being unable to detect dangers such as collapse near the construction site. In addition, the above-mentioned academic means of clarification are effective for elucidating the basic collapse mechanism in the slope, but directly detect the danger of collapse, etc. There is a problem such as lack of practicality as a means to do.
[0005]
The present invention has been developed to solve the above-described problems, and the object of the present invention is to install a rope tension detector on the side of the rope, and to install a built-in danger indicator and a remote monitoring device. By connecting, it can be easily constructed at any time to detect the danger of slope failure near the construction site and enable remote monitoring. It is to provide a danger display device such as a slope failure and its danger display / monitoring device.
[0006]
[Means for Solving the Problems]
In the present invention, a large number of wire ropes arranged at vertical and horizontal intervals on the slope are anchored and connected to be stretched in a net shape, or a wire mesh is laid on the slope and a large number of wire ropes are similarly stretched in a net shape. In the fallen rock protection work, it is attached to the side of the wire rope so that it can be attached and detached. A pair of guides connected to each other through a wire and switched to a danger display by the above-described operation, and the detachable rope tension detector is attached to and detached from the side of the wire rope at a distance. A tension detecting member that detachably supports the roll and the wire rope between the two guide rolls and resists the rope tension to pull the wire rope to bend, and the wire rope by spring-biasing the tension detecting member An operating means that operates when the pull-in rope tension becomes high to a predetermined value, and the tension detection member includes a holding member with a guide rod inserted into one spring receiver fixed between the central portions of the two main bodies. It consists of the other clamping member etc. which attach to a member with a screw and clamp a wire rope.
Attach and attach multiple detachable rope tension detectors to the side of the wire rope of the rock fall protective work, and install and connect the danger indicator to the key points of the rock fall protective work under construction. Danger indicators can be easily attached at any time, making it possible to directly detect the danger of falling rocks at multiple locations near the construction site for rock fall protection, etc. It is increasing. In particular, a rope tension detector can be easily attached to the side of the rope by a pair of guide rolls and a tension detection member, and mechanical accuracy can be obtained when the rope tension is increased to a predetermined value by the operation means of the tension detection member. The operation performance and reliability as well as the attachment / detachment performance are improved.
[0007]
A plurality of anchors with resistance plates placed in multiple steps at vertical intervals on the slope, wire ropes stretched by connecting and communicating with each resistance plate anchor and anchoring the outer end, and the side of each wire rope A plurality of detachable rope tension detectors that are detachably attached to the section and actuate when the rope tension increases to a predetermined value, and are built on the slope and connected to each rope tension detector via an operation line. The detachable rope tension detector includes a pair of guide rolls that are attached to and detached from the sides of the wire rope and a wire rope between the two guide rolls. A tension detection member that removably supports and pulls the wire rope against the rope tension and bends, and springs the tension detection member and activates when the draw rope tension rises to a predetermined value together with the wire rope The tension detecting member includes a holding member with a guide rod inserted through one spring receiver fixed between the central portions of the two main bodies, and the wire rope is attached to the holding member with a screw. It is characterized by comprising the other holding member.
It is relatively easy to install multiple stages of anchors with resistance plates, wire rope connection and communication, anchors at the outer end, multiple detachable rope tension detectors and erection and connection of danger indicators. It is easily constructed at any time by the mechanism, making it possible to directly detect the danger of collapse, etc. near the slope and at multiple locations, and to improve the danger display performance and reliability of slope collapse as well as the workability. In particular, a rope tension detector can be easily attached to the side of the rope by a pair of guide rolls and a tension detection member, and mechanical accuracy can be obtained when the rope tension is increased to a predetermined value by the operation means of the tension detection member. The operation performance and reliability as well as the attachment / detachment performance are improved.
[0008]
[0009]
Further, in the risk prediction device for the slope failure or the like, a remote monitoring device comprising an operation switch provided for the rope tension detector operation means and a risk monitoring means connected to the operation switch via a signal line is connected. It is characterized by a risk prediction / monitoring device such as slope failure that has been set up, and this remote monitoring device can detect and monitor the risk of slope failure even in remote locations, making it comprehensively superior slope failure Such as danger display performance, monitoring performance, and reliability.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a first embodiment of a danger display device and a danger display / monitoring device applied to a protective work such as falling rocks of the present invention, and FIG. 2 shows a danger display device and a danger display / monitoring device applied to the slope itself. FIG. 3 shows an embodiment of a detachable rope tension detector, FIG. 4 shows an embodiment of a danger indicator, FIG. 5 shows an embodiment of an anchor, FIG. 6 shows an embodiment of another anchor, and FIG. FIG. 7 shows an embodiment of a clip at a rope intersection, and FIG. 8 shows an embodiment of an anchor with a resistance plate.
In the figure, G is a slope, S is a floating stone that may collapse, 1 is a fallen stone protector, 1a and 1b are wire ropes stretched vertically and horizontally, and 2 and 3 are end or intermediate portions of the wire rope. Anchors 4 are anchors with resistance plates, 5 are clips at the intersection of ropes, 6 is a wire mesh, 10 is a detachable rope tension detector comprising a guide roller 15, a tension detecting member 16 and an operating means 17, and 20 is a slope. A built-in danger indicator, F and F1 are spring bias and rope tension, and 30 is a remote monitoring device comprising an operation switch 31, a signal line 32, a monitoring means 34, and the like.
[0011]
In the illustrated embodiment, a large number of wire ropes 1a, 1b arranged on the slope G at vertical and horizontal intervals are anchored 2 and 3, and each wire rope is stretched in a net shape, or a wire mesh 6 is attached to the slope. In the rock fall rock protection work 1 in which a large number of wire ropes are similarly stretched in a net-like manner, a plurality of attachments and detachments that are detachably attached to the sides of the wire ropes 1a and 1b and operate when the rope tension F1 increases to a predetermined value And a danger indicator 20 which is built in a slope and connected to each rope tension detector via an operation line 19 and is changed to a danger display by the above operation. It has become a danger display device such as the slope collapse.
[0012]
A plurality of anchors 4 with resistance plates 4b that are vertically spaced on the slope, and wire ropes 1a and 1b that are stretched by connecting or communicating with the respective anchors with resistance plates and anchoring the outer ends 2 And a plurality of detachable rope tension detectors 10 which are detachably attached to the respective wire ropes and operate when the rope tension F1 increases to a predetermined value, and are connected to the respective rope tension detectors which are built on the slope via operation lines. In addition, a danger indicator 20 such as a slope collapse is provided, which is provided with a danger indicator 20 that is changed to a danger indication by the above-described operation.
[0013]
Further, in the danger display device such as the slope collapse, the rope tension detector 10 includes a pair of guide rolls 15 which are attached to and detached from the side portions of the wire ropes 1a and 1b, and a wire rope between the two guide rolls. Tension detecting member 16 that detachably supports and pulls and curves against rope tension F1, and actuates a danger indication when the tension tension increases to a predetermined value by pulling the wire rope by spring biasing the tension detecting member. It is a danger display device such as a slope collapse characterized by comprising means 17.
[0014]
Furthermore, in the danger display device such as the slope failure, the operation switch 31 provided to the operation means 17 of the rope tension detector 10, the signal line 32 connected to the operation switch, and the danger display connected to the signal line. This is a danger display / monitoring device for slope failure, etc., characterized in that a remote monitoring device 3 comprising a monitoring means 34 is connected continuously.
[0015]
More specifically, as shown in FIG. 1, the rocker and the like protective work 1 of the first embodiment is constructed on a slope G where there is a risk of falling rocks and the like, and has various toughnesses having required strength corresponding to the falling rocks and the like. Wire ropes 1a and 1b and wire mesh 6 are applied, and a large number of wire ropes 1a and 1b are arranged in a vertical and horizontal direction at appropriate intervals on the slope, and a large number of anchors 2 and 3 are driven. Or, the intermediate portions are anchored 2 and 3, the crossing portions of the ropes are connected with a clip 5 or the like, and the wire ropes are stretched in a net shape. Alternatively, the wire mesh 6 is laid on the slope G, a number of wire ropes 1a and 1b are similarly connected by the anchors 2 and 3 and the clips 5, and each wire rope is stretched in a net shape while the wire mesh 6 is laid. It is constructed. Further, a rope tension detector 10, a danger indicator 20, and a remote monitoring device 30, which will be described later, are connected to the required positions of the required wire ropes 1a and 1b.
[0016]
The detachable rope tension detector 10 has a pair of main bodies 11 assembled at a predetermined interval by a plurality of bolts / nuts 12 and spacers 13 as shown in FIG. 3, and a pair of guides between one side of the main bodies. A holding member 16a with a guide rod 16b inserted into one spring support 17a fixedly supported by bolts and nuts 12 between the central portions of the main bodies 11 so as to pivotally support the grooved guide roll 15 at an appropriate interval. And a tension detecting member 16 including the other clamping member 16c which is attached to the clamping member with a screw 16d and clamps the wire ropes 1a and 1b, and is further fitted or screwed into the guide rod 16b of the tension detecting member 16. An operating means 17 is provided which includes a compression spring 17b, the other spring receiver 17c, a nut 17d, and an operating rod 17e protruding from the holding body 16a and connected to the inner wire 19a of the operating wire 19. , And summer to structure the tension detecting member 16 in urging F spring is curved pull upward in the figure with a wire rope (between the guide roll 15) for supporting detachably attached to it a compression spring 17b against the rope tension F1.
[0017]
The rope tension detector 10 applies both guide rolls 15 to the wire ropes 1a and 1b that are stretched as shown in the figure, and the tension detecting member 16 clamps the wire rope between the guide rolls. Is tightened moderately with a split pin or the like, and the spring urging force F of the compression spring 17b is set to a required value, so that the intermediate portion of the wire rope supported by both guide rolls 15 can be appropriately adjusted by the tension detecting member 16. The rope tension detector 10 is detachably and easily attached to a required position of the wire rope at any time by applying the spring bias F to the rope tension F1, and by applying the spring tension F to the rope tension F1. When the rope tension F1 becomes moderately high due to the movement of the falling rock S or the like, the tension detection member 16 moves together with the wire rope against the spring biasing F (see FIG. 3A), and when the rope tension reaches a predetermined value. The danger indicator 20 is switched to danger indication by mechanically operating through the operating rod 17e attached to the holding member 16a and the inner wire 19a of the operating line 19. Further, the operation switch (open / close switch) 31 is operated by the operating rod 17e to close the signal line 32 and operate the remote monitoring device 30. The spring bias F is set so that it operates before the rope tension F1 reaches the proof strength of the wire rope. The operation is continued by an appropriate check means (not shown) attached to the rope tension detector 10. Further, the tension detecting member 16 shown in the figure also has a structure such as a hook that pulls and supports a wire rope as necessary (not shown).
[0018]
As shown in FIG. 4, the danger indicator 20 includes a rod 21 to be installed at an appropriate position on the slope G, a cover case 23 in which a band 22a is attached to the rod head with bolts / nuts 22b, etc., and a surface plate 24 of the cover case. Built in the cover case and spring-biased upward by a spring 26 or the like to be connected to the inner surface 19a of the operating line 19 projecting from the danger indicator plate 25 facing the inside of the surface plate and the lower part of the danger indicator plate For example, a large number of transparent portions 24a and white portions 24b having appropriate widths are alternately formed on the surface plate 24, and a white portion 25a having appropriate widths and a yellow or red danger warning color portion 25b are provided on the danger display plate 25, for example. (When necessary, it is possible to use a fluorescent paint at night to form a distance), and the danger display plate 25 is normally placed on the upper side in the drawing with a spring bias so that each white portion 25a is a surface plate 24. In the transparent part 24a Combined, the entire surface of the surface plate 24 is a white safety display. When the detachable rope tension detector 10 is activated, the danger warning color portion 25b of the danger display plate 25 is aligned with the transparent portion 24a of the surface plate 24 via the operating rod 27e and the thinner wire 19a of the actuation line 19, and automatically displays a danger indication. It has a structure that changes with. If necessary, an appropriate check means for preventing the danger display plate 25 from rising after being lowered is provided (not shown). The display means by the surface board 24 and the danger display board 25 is implemented not only in the illustrated example but in a structure that can be viewed from a distance.
[0019]
For example, as shown in FIGS. 3 and 1, the danger monitoring device 30 includes an operation switch 31 such as an opening / closing switch attached to the rope tension detector 10, a signal line 32 that is opened and closed by the operation switch, and a signal line. It consists of a controller 33 that is connected and operated, a display 34 such as a television that is connected and operated by a controller, a recorder 35, an alarm 36, and the like. Based on this signal, the controller 34 is activated, and the indicator 34 displays the danger such as collapse of each rope tension detector 10, specifically records it on the recorder 35, and the alarm device 36 gives an alarm (red lamp or buzzer). Etc.) It is structured to easily detect and monitor the partial dangerous state of protective works such as falling rocks in remote places.
[0020]
In the wire ropes 1a and 1b of the rock fall protection device 1 shown in FIG. 1, at the end of the rope, as shown in FIG. 5, the anchor 2 or the like provided with a collar 2b, a ring 2c or the like on the head of the anchor rod 2a Is applied, the support plate 2d is fitted, the slope G is driven and filled with the inflatable filler j to increase the anchoring force, and the end portion of the wire rope is connected to the ring portion 2c. . As shown in FIG. 6, an anchor rod 3a, a pair of rope groove holding plates 3c fitted to the bolt portion 3b, an anchor 3 consisting of a connecting bolt 3d, a plurality of nuts 2e, etc. are applied to the intermediate portion of the rope. The anchor rod 3a is driven into the slope G and an appropriate inflatable filler j is filled around the surface G to increase the anchoring force, and both the clamping plates 3c and the connecting bolt 3d are inserted into the bolt portion 3b. By tightening, the wire ropes 1a and 1b are sandwiched and anchored by both sandwiching plates. Further, as shown in FIG. 7, a rope crossing support plate 5a, a pair of U-shaped members 5b and 5b, a clip 5 consisting of a plurality of nuts 5c, and the like are applied to join the rope intersections. It is attached to the part and tightened with nuts so as to be sandwiched between the support plate and the U-shaped member. These anchors and clips are not limited to the illustrated examples, and various structures can be applied.
[0021]
As shown in FIG. 1, when the rope net is deformed or is recognized as necessary in the rainy season or the like in the rock fall protector 1 constructed on the slope G where the rock fall S or the like may occur, the ends of the required wire ropes 1a and 1b The rope tension detector 10 is detachably attached to the side part of the center part and the intermediate part as described above, and the danger indicator 20 is built in a proper position on the slope and connected by the operation line 19, and in the protective work such as falling rock A plurality of sets are attached as a danger prediction display device such as a slope collapse by being attached to an end portion or an intermediate portion of a required wire rope. Further, if necessary, a remote monitoring device 30 is connected to each rope tension detector 10 via a signal line 32 and is attached as a danger display / monitoring device such as a slope failure.
[0022]
The danger indication device and the danger indication / monitoring device such as the slope collapse are applied to the required wire ropes 1a, 1b and the end portions thereof as needed in the fallen stone protection work 1 as described above. Easily attached to the side part of the middle part and incorporated as multiple sets of danger indication / monitoring devices, and also easily attached by connecting the danger indication / monitoring devices as required, making it easy to replace and remove, etc. Excellent workability. In addition, a plurality of detachable rope tension detectors 10 of the danger display device are attached to the rope side of the protective work 1 such as falling rocks at any time, and mechanically detect the rope tension F1 directly without any special adverse effects due to corrosion or the like. Excellent reliability, such as operation. Furthermore, each danger indicator 20 is connected to the rope tension detector 10 built on the slope G, and is arranged at a key point of the protective work 1 such as falling rocks. Passers-by can easily detect the dangerous state of each part near the protective work such as falling rocks and accurately detect it. The danger display / monitoring device connected to the danger indicator 20 provides excellent danger display performance and further remote confirmation performance such that the above-mentioned danger state can be easily and accurately confirmed even in a remote place. Countermeasures such as evacuation are possible by the danger indications such as slope collapse and remote confirmation as described above, and measures such as local repair of the fallen stone protective work 1 etc. to prevent its destruction and collapse etc. Measures can be effectively implemented.
[0023]
2 is applied to the slope G where there is a risk of collapse of the surface layer itself, and the slope G as shown in the figure. A plurality of (4 in the illustrated example) anchors 4b with resistance plates 4b are driven in a plurality of stages (six in the illustrated example) at least at vertical intervals over almost the entire surface, and the ends of the wire ropes 1a and 1b are placed on each anchor 4. Connecting or communicating with each other and arranging them vertically or horizontally, and anchoring the outer end of each wire rope as an anchor 2 (see, for example, FIG. 5), preferably on the side of each wire rope near the end A detachable rope tension detector 10 (see, for example, FIG. 3) is similarly detachably attached to the section, and a plurality of danger indicators 20 are connected to the slope and connected via an operation line 19 to indicate danger such as slope failure. A plurality of sets are constructed as equipment. A remote monitoring device 30 (see, for example, FIG. 1) is connected to each detachable rope tension detector 10 via a signal line 32 as necessary, and is connected as a danger display / monitoring device such as a slope failure, etc. Yes.
[0024]
Further, the anchor 4 with the resistance plate 4b is provided with a resistance plate 4a on an anchor rod 4a by an appropriate means as shown in FIG. The anchor rod 4a is driven at a position by an appropriate means, and the ends and intermediate portions of the wire ropes 1a and 1b are connected to or communicated with the ring portion 4d so as to be vertically or horizontally stretched. It can be moved along with the surface layer by resistance, and each detachable rope tension detector 10 detects the increase in the rope tension F1 due to the movement of the anchor 4 and the wire ropes 1a, 1b accompanying the movement of the slope G, etc. It has a structure to do.
[0025]
The danger display device such as a slope collapse shown in FIG. 2 and its danger display / monitoring apparatus are constructed by placing anchors 4 with a plurality of resistance plates 4a on the slope G in a plurality of upper and lower stages, and wire each anchor. The ends and intermediate portions of the ropes 1a and 1b are connected and communicated, and the outer ends are anchored and stretched so that the detachable rope tension detector 10 can be attached to and detached from the side near the end of each wire rope. By attaching and connecting a plurality of danger indicators 20 to the slope via the operation line 19, a plurality of sets of danger indicators are constructed on the slope at any time, and a remote monitoring device is provided via the signal line 32 as necessary. 30 is connected and constructed as a danger indication / monitoring device such as slope failure. It is easy to install on the slope G at any time, and it is easy to replace and remove. In addition, the anchors 4 with the resistance plates 4a placed in a plurality of upper and lower stages detect the displacement and the like of the surface layer accurately and accurately to increase the rope tension F1 of the wire ropes 1a and 1b. The tension detector 10 operates by directly detecting the rope tension, and the danger state of each part such as slope collapse is displayed by each danger indicator 20 built in the slope. The remote monitoring device 30 can monitor a dangerous state such as a collapse at a remote location, and can provide excellent danger display performance such as a slope failure, remote monitoring performance, and reliability. The number, arrangement, and the like of the anchor 4 with resistance plate and the wire ropes 1a, 1b are not limited to the illustrated example, but are implemented in various ways corresponding to the spread of the slope.
[0026]
【The invention's effect】
The present invention provides a plurality of detachable rope tension detectors attached to the end of the required wire rope and the side of the intermediate portion in the protective work such as falling rocks constructed as described above and constructed on the slope. By installing and connecting the indicator to the slope, multiple sets of rope tension detectors and danger indicators can be added to the key points of the protective work such as fallen rocks, etc. . In addition, near the construction site of protective work such as falling rocks, the danger of collapse etc. is detected and displayed directly at multiple locations, and the danger display performance and reliability of slope collapse etc. are remarkably improved along with the workability. Yes.
[0027]
In addition, a plurality of anchors with resistance plates are placed on the slope in multiple stages above and below, and wire ropes are connected to or connected to the anchors with resistance plates, and the outer ends are anchored and stretched. Removable rope tension detector is detachably attached to the part. A removable rope tension detector is installed, and a danger indicator is installed on the slope and connected via an operating line. Therefore, it is possible to easily perform construction, replacement, replacement or removal at any time, and the risk of collapse etc. is displayed directly and accurately at multiple locations near the slope in the same way as above, and the slope of the slope itself is collapsed along with the workability. Danger indication performance and reliability such as are remarkably improved.
[0028]
In addition, in the above-described danger display device such as slope failure, the rope tension detector can be easily attached to the side of the rope, replaced, removed or removed at any time by the pair of guide rolls and tension detecting members of the rope tension detector. In addition, the operation means and the reliability of the tension detecting member are remarkably enhanced in addition to the attaching / detaching performance, such as enabling the mechanical operation with high accuracy when the rope tension is increased to a predetermined value. Constructed as a risk prediction / monitoring device for slope failure, etc., with a remote monitoring device consisting of an operating switch that is connected to the operating means of the rope tension detector and a risk monitoring device that is connected to the operating switch via a signal line As a result, the danger display performance such as slope failure, as well as monitoring performance and reliability have been significantly improved. Yes. In addition, safety can be effectively enhanced because it is possible to take measures such as evacuation and repair from the danger indication and monitoring of the slope collapse.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of a risk prediction display device and its risk prediction display / monitoring device according to the present invention. FIG. 2 is a plan view composition showing a second embodiment. Side view (A) and plan view (B) showing an embodiment of a rope tension detector and sectional view (C) of the XX line portion
FIG. 4 is a front view (A), an upper cross-sectional view (B), and an upper side view (C) showing an embodiment of a display connected to a rope tension detector.
FIG. 5 is a front view (A) and a side view (B) showing an embodiment of an anchor placed.
FIG. 6 is a side view (A) and a plan view (B) showing another embodiment of an anchor.
FIG. 7 is a front view (A) and a plan view (B) showing an embodiment of a clip.
FIG. 8 is a side view (A) and a plan view (B) showing an embodiment of an anchor with a resistance plate.
[Explanation of symbols]
G Slope 1 Falling rock protection work 1a, 1b Wire rope 2, 3 Anchor 4 Resistor plate anchor 6 Wire mesh 10 Rope tension detector 11 Main body 15 Guide roll 16 Tension detection member 16a Holding member 16b Guide rod 16c Holding member 16d Screw 17 Actuating means 17a Spring receiver 19 Actuating line 20 Danger indicator 30 Remote monitoring device 31 Actuating switch 32 Signal line 34 Monitoring means F Spring energizing F1 Rope tension

Claims (3)

法面に縦横間隔をおき配置した多数のワイヤロープを、アンカー及び結合してネツト状に張設し、又は法面に金網を敷き詰め、多数のワイヤロープをアンカー及び結合してネツト状に張設した落石等防護工において、ワイヤロープの側部に着脱可能に取り付けてロープ張力が所定値に高まると作動する複数の着脱式ロープ張力検出器と、法面に建て込み各ロープ張力検出器に作動線を介して連結し前記の作動によつて危険表示に切り変わる危険表示器とを具備してなり、前記着脱式ロープ張力検出器が、ワイヤロープの側部に間隔をおき着脱される一対のガイドロールと、両ガイドロール間のワイヤロープを着脱可能に支持してロープ張力に抗しワイヤロープを引き込み湾曲させる張力検出部材と、張力検出部材をバネ付勢してワイヤロープとともに引き込みロープ張力が所定値に高くなると作動する作動手段とを具備し、前記張力検出部材が、本体の中央部間に固設した一方のバネ受けに挿通したガイド扞付きの挟持部材と、挟持部材にねじで取り付けてワイヤロープを挟持する他方の挟持部材等からなっていることを特徴とする法面崩落等の危険表示装置。A large number of wire ropes arranged at vertical and horizontal intervals on the slope are anchored and connected in a net shape, or a wire mesh is laid on the slope and a large number of wire ropes are anchored and connected in a net shape. In the fallen rock protection work, it is attached to the side of the wire rope so that it can be attached and detached. A pair of detachable rope tension detectors attached to and detached from the sides of the wire rope. A guide roll, a tension detection member that removably supports the wire rope between the two guide rolls and resists the rope tension and pulls the wire rope to bend, and a wire rope that biases the tension detection member with a spring. Both of which are provided with an operating means that operates when the pulling rope tension becomes a predetermined value, and the tension detecting member includes a holding member with a guide rod that is inserted into one spring receiver fixed between the central portions of the main body. A danger display device for slope failure, etc., characterized by comprising the other clamping member or the like that clamps the wire rope by being attached to the member with a screw . 法面に上下間隔をおき複数段に打設した複数の抵抗板付きアンカーと、各抵抗板付きアンカーに連結又は連通し外端部をアンカーして張設したワイヤロープと、各ワイヤロープの側部に着脱可能に取り付けてロープ張力が所定値に高まると作動する複数の着脱式ロープ張力検出器と、法面に建て込み各ロープ張力検出器に作動線を介して連結し前記の作動によつて危険表示に切り変わる危険表示器とを具備してなり、前記着脱式ロープ張力検出器が、ワイヤロープの側部に間隔をおき着脱される一対のガイドロールと、両ガイドロール間のワイヤロープを着脱可能に支持してロープ張力に抗しワイヤロープを引き込み湾曲させる張力検出部材と、張力検出部材をバネ付勢してワイヤロープとともに引き込みロープ張力が所定値に高くなると作動する作動手段とを具備し、前記張力検出部材が、本体の中央部間に固設した一方のバネ受けに挿通したガイド扞付きの挟持部材と、挟持部材にねじで取り付けてワイヤロープを挟持る他方の挟持部材等からなっていることを特徴とする法面崩落等の危険表示装置。A plurality of anchors with resistance plates placed in multiple steps at vertical intervals on the slope, a wire rope connected to or connected to each resistance plate anchor and anchored at the outer end, and the side of each wire rope A plurality of detachable rope tension detectors that are detachably attached to the section and actuate when the rope tension increases to a predetermined value, and are built on the slope and connected to each rope tension detector via an operation line. A pair of guide rolls that are attached to and detached from the side of the wire rope at intervals, and a wire rope between the two guide rolls. A tension detecting member that detachably supports the wire rope against the rope tension and bends the wire rope and springs the tension detecting member together with the wire rope. The tension detecting member includes a holding member with a guide rod inserted through one spring receiver fixed between the central portions of the main body, and a wire rope attached to the holding member with a screw. A danger display device such as a slope failure characterized by comprising the other clamping member or the like . ロープ張力検出器の作動手段に対設した作動スイツチと、作動スイツチに信号線を介して連結した危険監視手段とからなる遠隔監視装置を連設したことを特徴とする請求項1又は請求項2に記載の法面崩落等の危険表示・監視装置。3. A remote monitoring device comprising an operation switch provided for an operation means of the rope tension detector and a danger monitoring means connected to the operation switch via a signal line, are connected in series. Danger display / monitoring device for slope failure, etc.
JP10400298A 1998-03-31 1998-03-31 Hazard indication device and danger indication / monitoring device such as rock collapse Expired - Fee Related JP3829012B2 (en)

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