JPH0452802B2 - - Google Patents
Info
- Publication number
- JPH0452802B2 JPH0452802B2 JP6344386A JP6344386A JPH0452802B2 JP H0452802 B2 JPH0452802 B2 JP H0452802B2 JP 6344386 A JP6344386 A JP 6344386A JP 6344386 A JP6344386 A JP 6344386A JP H0452802 B2 JPH0452802 B2 JP H0452802B2
- Authority
- JP
- Japan
- Prior art keywords
- water intake
- intake tower
- construction block
- tower construction
- scaffolding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 100
- 238000010276 construction Methods 0.000 claims description 53
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Barrages (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ダムにおける表面取水設備の取水塔
架設工法およびその取水塔架設工法で用いる取水
塔架設用足場装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for constructing a water intake tower for surface water intake equipment in a dam, and a scaffolding device for constructing a water intake tower used in the method.
従来の技術
ダムの表面取水設備は、たとえば第８図〜第１
０図に示すごとき構造をもつている。すなわち堰
堤１の内面側の取水塔基礎部２に所定高さの取水
塔３が架設され、この取水塔３の内部に伸縮自在
の筒状の取水ゲート４が立設され、取水ゲート４
の下端は堰堤内に設けた取水路５に接続されてい
る。取水ゲート４は、堰堤１の上端部に配設され
たウインチあるいはクレーン等の吊上げ装置６に
より、伸縮される。取水塔３は、鉛直に立設され
た複数本（通常３本）の支柱７と、この支柱７
に、高さ方向に所定間隔で固設された複数段の取
水塔足場８とからなつている。Conventional technology The surface water intake equipment of a dam is shown in Figures 8 to 1, for example.
It has a structure as shown in Figure 0. That is, a water intake tower 3 of a predetermined height is constructed on the water intake tower foundation 2 on the inner surface side of the dam 1, and a retractable cylindrical water intake gate 4 is erected inside the water intake tower 3.
Its lower end is connected to an intake channel 5 provided within the dam. The water intake gate 4 is expanded and contracted by a lifting device 6, such as a winch or a crane, provided at the upper end of the dam 1. The water intake tower 3 consists of a plurality of vertically erected pillars 7 (usually three), and these pillars 7.
The water intake tower is composed of multiple stages of water intake tower scaffolding 8 fixedly installed at predetermined intervals in the height direction.
従来、ダムにおける上記のごとき表面取水設備
の取水塔３の架設は、第１２図〜第１３図に示す
ごとく、取水塔３を単位長さに切断した形の、複
数本の支柱片３ａと１個の取水塔足場８とで組立
てられた取水塔架設ブロツク３ａを、吊上げ装置
６により吊込んで組立て、逐次接続していく方法
で行なわれている。この場合取水塔架設ブロツク
３ａを吊込むに先立つて、前もつて架設されるべ
き取水塔の内外に仮設枠組足場９を設置し、この
仮設枠組足場９を使つて作業を進めていた。 Conventionally, the water intake tower 3 of the above-mentioned surface water intake equipment in a dam is constructed by using a plurality of support pieces 3a and 1, which are cut into unit lengths from the water intake tower 3, as shown in FIGS. In this method, the water intake tower construction block 3a assembled with the individual water intake tower scaffolds 8 is suspended by a lifting device 6, assembled, and successively connected. In this case, before suspending the water intake tower construction block 3a, temporary framework scaffolding 9 was installed inside and outside of the water intake tower to be erected, and work was carried out using this temporary framework scaffolding 9.
発明が解決しようとする問題点
取水塔の架設の際、従来は上記のごとく、取水
塔架設ブロツク３ａを吊込み、組立てるに先立つ
て、前もつて枠組足場９を設置して作業を進めて
いる。しかし、仮設枠組足場９は下記のような問
題点がある。Problems to be Solved by the Invention When constructing a water intake tower, conventionally, as described above, before suspending and assembling the water intake tower construction blocks 3a, a framework scaffold 9 has been installed in advance. . However, the temporary framework scaffolding 9 has the following problems.
（） 必要材料が非常に多く、かつ設備期間が
長い。() The required materials are extremely large and the equipment period is long.
（） 架設、撤去のための機材費、労務費が非
常に多くかかる。() Equipment costs and labor costs for erection and removal are extremely high.
（） 限られた面積のため取水塔の架設、据付
用の溶接機、コンプレツサなどの機材１０を設
置できず、地上へ設置しているため、作業準備
手間が多く、また作業能率が悪い。() Due to the limited area, it is not possible to install the equipment 10 for constructing and installing the water intake tower, such as welding machines and compressors, and they are installed on the ground, which requires a lot of work preparation time and has poor work efficiency.
（） 防護ネツト等の安全施設の範囲が広大
で、費用がかかる。() The range of safety facilities such as protective nets is vast and expensive.
（） 上記各事項により、全体工程が多く、か
つ施工費がかさむ。() Due to the above-mentioned items, the overall process is long and construction costs are high.
本発明は、取水塔の架設における従来方式の、
上記のごとき問題点を解決した、取水塔架設工
法、およびこの取水塔架設工法で用いる取水塔架
設用足場を提供しようとするものである。 The present invention overcomes the conventional method of constructing a water intake tower.
The present invention aims to provide a water intake tower construction method that solves the above-mentioned problems, and a water intake tower construction scaffold used in this water intake tower construction method.
問題点を解決するための手段
上記のごとき問題点を解決するため、第１の発
明の取水塔架設工法は、取水塔基礎部上へ、第１
番の取水塔架設ブロツクを、堰堤上部に配設した
吊上げ装置を用いて架設し、次いで取水塔架設用
足場装置を、前記吊上げ装置を用いて先に架設し
た取水塔架設ブロツク内に挿入するとともに、そ
の取水塔架設ブロツクに着脱自在に取付け、次に
第２番の取水塔架設ブロツクを、前記吊上げ装置
を用いて前記第１番の取水塔架設ブロツク上に積
上げて両取水塔架設ブロツクを接続し、次いで前
記取水塔架設用足場装置を、前記吊上げ装置を用
いて、上部の第２番の取水塔架設ブロツク側へ移
動するとともに、その取水塔架設ブロツクに着脱
自在に取付け、上記の取水塔架設ブロツク接続お
よび取水塔架設用足場装置移動を所定高さまで逐
次繰返して取水塔を架設することを特徴とし、第
２の発明の取水塔架設用足場装置は、取水塔内を
上下移動可能な床版と、その床版を取水塔へ取付
ける取付固定装置とからなることを特徴とするも
のである。Means for Solving the Problems In order to solve the above problems, the water intake tower construction method of the first invention provides a first
The intake tower construction block No. is erected using a lifting device installed on the upper part of the dam, and then the scaffolding device for water intake tower construction is inserted into the previously erected water intake tower construction block using the lifting device. , is detachably attached to the water intake tower construction block, and then the second water intake tower construction block is stacked on top of the first water intake tower construction block using the lifting device to connect both water intake tower construction blocks. Then, the scaffolding device for constructing the water intake tower is moved to the upper No. 2 water intake tower construction block side using the lifting device, and is removably attached to the water intake tower construction block. The water intake tower is constructed by sequentially repeating the connection of the construction blocks and the movement of the scaffolding device for constructing the water intake tower up to a predetermined height. It is characterized by consisting of a slab and a fixing device for attaching the floor slab to the water intake tower.
作 用
本発明において、取水塔架設用足場装置が取水
塔内を上下移動可能で、かつ取水塔に着脱自在で
あり、この取水塔架設用足場装置を１個の取水塔
架設ブロツクの吊込み組立てごとに、その取水塔
架設ブロツク内で吊上げ移動して、取付け固定す
るので、その移動、取付けした取水塔架設用足場
装置を使つて、次の取水塔架設ブロツクの吊込
み、組立て、接続の作業を行なうことができ、従
来のごとき、必要材料が多く、架設および撤去に
時間と費用を要する仮設枠組足場が不要である。Function In the present invention, the scaffolding device for constructing a water intake tower is movable up and down within the water intake tower, and is detachable from the water intake tower, and the scaffolding device for constructing the water intake tower can be assembled by hanging one water intake tower construction block. For each intake tower construction block, the water intake tower construction block is lifted and moved, and then installed and fixed, so the work of lifting, assembling, and connecting the next water intake tower construction block using the scaffolding equipment for the installation of the water intake tower. This eliminates the need for temporary framework scaffolding, which requires a large amount of materials and takes time and money to erect and dismantle, as required in the past.
実施例
本発明の実施例を第１図〜第７図に基いて説明
する。なお第８図〜第１３図と同一部分、同一部
材は同一符号を用いた。Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 7. Note that the same parts and members as in FIGS. 8 to 13 are designated by the same reference numerals.
まず取水塔３の架設の手順を、取水塔基礎部２
への架設から説明するが、第１図および第２図は
取水塔３の架設がある程度進行した段階での状況
を示している。 First, the procedure for constructing the water intake tower 3 is as follows:
1 and 2 show the situation at a stage where the construction of the water intake tower 3 has progressed to a certain extent.
３本の支柱片７ａと１個の環状の取水塔足場８
とで組立てられた取水塔架設ブロツク３ａの第１
番目を堰堤１の上端部に配設された吊上げ装置６
を用いて、先ず取水塔基礎部２上へ吊込んで架設
し、次いで取水塔３内を上下移動可能な構造を有
する取水塔架設用足場装置（以下足場装置とい
う。）１１を、前記の取水塔基礎部２へ架設した
第１番の取水塔架設ブロツク３ａ内に、前記吊上
げ装置６を用いて吊込んで、その取水塔架設ブロ
ツク３ａに取付け固定し、次に第２番目の取水塔
架設ブロツク３ａを、吊上げ装置６により前記の
第１番の取水塔架設ブロツク３ａ上に吊上げて、
支柱片７ａ同士の位置合せをして積上げ、前記足
場装置１１を使用して、上下両取水塔架設ブロツ
ク３ａ，３ａの各支柱片７ａ，７ａを一体的に接
続する作業を行なう。次いでその足場装置１１
を、吊上げ装置６で吊つて、第１番の取水塔架設
ブロツク３ａとの取付けを外した後、上方の第２
番の取水塔架設ブロツク３ａ側まで吊上げて、取
付け固定する。上記のようにして、取水塔架設ブ
ロツク３ａの積上げ、接続、足場装置１１の移動
を第３番、第４番…と逐次繰返して、所定高さま
で取水塔架設ブロツク３ａの必要個数を積上げ、
接続して一体化し、取水塔３全体を架設する。取
水塔３の最上部の架設が終了すれば、足場装置１
１は取外して吊上げ装置６により吊りおろして撤
去する。第１図および第２図は、上記のごとく、
取水塔３の架設状況を示しているが、第１図は第
５番の取水塔架設ブロツク３ａを、吊上げ装置６
により、すでに架設され、一体化された４個の取
水塔架設ブロツクの上に積上げられた状態を示し
ている。足場装置１１は第４番の取水塔架設ブロ
ツクに相当する位置に取付け固定されて、それを
使つて第５番の取水塔架設ブロツク３ａの接続等
の作業が行なわれる。第２図は、第１図の状態か
らさらに進んで、足場装置１１が吊上げ装置６に
より、新たに接続された第５番の取水塔架設ブロ
ツク３ａ側の位置に移動されようとする状態を示
している。 Three support pieces 7a and one annular water intake tower scaffolding 8
The first part of the water intake tower construction block 3a assembled with
The lifting device 6 installed at the upper end of the dam 1
The scaffolding device for constructing a water intake tower (hereinafter referred to as scaffolding device) 11, which has a structure that can be first suspended and erected onto the water intake tower foundation 2 using a It is hoisted into the first water intake tower construction block 3a built on the tower foundation 2 using the lifting device 6, attached and fixed to the water intake tower construction block 3a, and then the second water intake tower is constructed. The block 3a is lifted onto the above-mentioned No. 1 water intake tower construction block 3a by the lifting device 6,
The support pieces 7a are aligned and stacked, and the scaffolding device 11 is used to integrally connect the support pieces 7a of the upper and lower water intake tower construction blocks 3a, 3a. Then the scaffolding device 11
is lifted by the lifting device 6 and removed from the No. 1 water intake tower construction block 3a, and then the upper
Lift it up to the numbered water intake tower construction block 3a side and attach and secure it. As described above, stacking, connecting, and moving the scaffolding device 11 of the water intake tower construction blocks 3a are repeated sequentially to No. 3, No. 4, etc., to stack up the necessary number of water intake tower construction blocks 3a to a predetermined height,
They are connected and integrated to construct the entire water intake tower 3. Once the construction of the top of the water intake tower 3 is completed, the scaffolding device 1
1 is removed and lifted down by the lifting device 6 and removed. Figures 1 and 2 are as described above.
The construction status of the water intake tower 3 is shown in FIG.
The figure shows a state in which the water intake tower is stacked on top of four water intake tower construction blocks that have already been constructed and integrated. The scaffolding device 11 is installed and fixed at a position corresponding to the No. 4 water intake tower construction block, and is used to perform work such as connecting the No. 5 water intake tower construction block 3a. FIG. 2 shows a state in which the scaffolding device 11 is about to be moved by the lifting device 6 to a position on the side of the newly connected No. 5 water intake tower construction block 3a, which has proceeded further from the state shown in FIG. ing.
次に足場装置１１について説明する。足場装置
１１は、第３図〜第７図に示すごとく、取水塔３
の取水塔足場８の環状の内周辺の形状に沿つた平
面形状で、前記環状内を通過可能な鋼製の床版１
２と、床版１２を取水塔３の支柱７に取付け固定
するための取付固定装置１３とからなり、取付固
定装置１３の一端１３ａは、床版１２の所定位置
に固着され、他端１３ｂは、支柱７側の係止具１
５に着脱自在に係合しうるようになつている。な
お取付固定装置１３は床版１２の裏面側に設け
て、床版１２を下から支持する態様としてもよ
い。床板１２上には足場装置１１全体を吊上げる
ための吊りピース１４が複数箇所に配設され、必
要に応じて手摺１６を設け、さらに取水塔３の外
周面側作業がある場合、補助足場１７を、適宜取
水塔３の外側へ張出し・格納自在に配設してもよ
い。足場装置１１の床版１２は広く、平坦であ
り、この上に溶接機、コンプレツサ等を、配置す
ることができる。足場装置１１は取水塔３架設の
際、２個あるいはそれ以上を上下に用いて多段式
にして、必要な複数の作業を同時に行なうことも
できる。 Next, the scaffolding device 11 will be explained. The scaffolding device 11 is installed on the water intake tower 3 as shown in FIGS. 3 to 7.
A steel floor slab 1 that has a planar shape that follows the shape of the inner periphery of the annular water intake tower scaffolding 8 and that can pass through the annular interior.
2, and a mounting/fixing device 13 for mounting and fixing the floor slab 12 to the support column 7 of the water intake tower 3. One end 13a of the mounting/fixing device 13 is fixed to a predetermined position of the floor slab 12, and the other end 13b is fixed to a predetermined position of the floor slab 12. , the locking tool 1 on the support column 7 side
5 so that it can be detachably engaged with it. Note that the attachment and fixing device 13 may be provided on the back side of the floor slab 12 to support the floor slab 12 from below. Suspension pieces 14 for hoisting the entire scaffolding device 11 are disposed at multiple locations on the floorboard 12, handrails 16 are provided as needed, and additional scaffolding 17 is provided when there is work on the outer circumferential surface of the water intake tower 3. may be arranged so as to be able to extend and store outside of the water intake tower 3 as appropriate. The floor slab 12 of the scaffolding device 11 is wide and flat, on which a welding machine, compressor, etc. can be placed. When constructing the water intake tower 3, two or more scaffolding devices 11 can be used one above the other to form a multi-stage structure, so that a plurality of necessary operations can be performed at the same time.
発明の効果
本発明により、取水塔の架設に際し、従来のご
とき必要材料が多く、架設および撤去に多大の時
間と費用を要する仮設枠組足場が不用となり、足
場装置も必要材料が少なく、取付、移動等が簡単
容易で、面積が広く架設用の各種機材を載置する
ことができて作業能率が格段に向上し、安全施設
を要する箇所も少なく、従つて作業日程が大幅に
短縮され、工費が大きく低減されるなどの格別の
効果を奏する。Effects of the Invention According to the present invention, when constructing a water intake tower, there is no need for temporary framework scaffolding, which requires a large amount of materials and takes a lot of time and money to construct and remove, as in the past. etc., and the large area allows various equipment for erection to be placed, greatly improving work efficiency, requiring fewer safety facilities, and therefore greatly shortening the work schedule and reducing construction costs. It produces exceptional effects such as a significant reduction.
第１図および第２図は第１発明の実施の状態を
示す要部側断面図、第３図〜第７図は第２発明の
一実施例を示し、第３図は補助足場を張出した状
態の平面図、第４図は補助足場を格納した状態の
平面図、第５図は第３図のＡ−Ａ線断面図、第６
図は要部側面図、第７図は第５図のＢ−Ｂ線断面
図、第８図〜第１１図は取水塔の概要を示し、第
８図は正面図、第９図は平面図、第１０図は第８
図のＣ−Ｃ線断面図、第１１図は第８図のＤ−Ｄ
線断面図、第１２図〜第３図は従来の取水塔架設
状態を示し、第１２図は側断面図、第１３図は横
断面図である。
１……堰塔、２……取水塔基礎部、３……取水
塔、３ａ……取水塔架設ブロツク、４……取水ゲ
ート、６……吊上げ装置、７……支柱、７ａ……
支柱片、８……取水塔足場、１１……取水塔架設
用足場装置、１２……床版、１３……取付固定装
置、１５……吊りピース、１７……補助足場。
Figures 1 and 2 are side sectional views of main parts showing the state of implementation of the first invention, Figures 3 to 7 show an embodiment of the second invention, and Figure 3 shows the auxiliary scaffolding extended. Fig. 4 is a plan view of the state in which the auxiliary scaffolding is retracted, Fig. 5 is a sectional view taken along the line A-A in Fig. 3, Fig. 6
The figure is a side view of the main parts, Figure 7 is a sectional view taken along the line B-B in Figure 5, Figures 8 to 11 show an outline of the water intake tower, Figure 8 is a front view, and Figure 9 is a plan view. , Figure 10 is the 8th
The sectional view taken along the line C-C in the figure, and Figure 11 is the D-D line in Figure 8.
A line sectional view and FIGS. 12 to 3 show a conventional water intake tower in an installed state, FIG. 12 is a side sectional view, and FIG. 13 is a cross sectional view. 1... Weir tower, 2... Water intake tower foundation, 3... Water intake tower, 3a... Water intake tower construction block, 4... Water intake gate, 6... Lifting device, 7... Pillar, 7a...
Strut piece, 8... Water intake tower scaffolding, 11... Scaffolding device for constructing the water intake tower, 12... Floor slab, 13... Mounting fixing device, 15... Hanging piece, 17... Auxiliary scaffolding.
Claims (1)
ツクを、堰堤上部に配設した吊上げ装置を用いて
架設し、次いで取水塔架設用足場装置を、前記吊
上げ装置を用いて先に架設した取水塔架設ブロツ
ク内に挿入するとともに、その取水塔架設ブロツ
クに着脱自在に取付け、次に第２番の取水塔架設
ブロツクを、前記吊上げ装置を用いて前記第１番
の取水塔架設ブロツク上に積み上げて両取水塔架
設ブロツクを接続し、次いで前記取水塔架設用足
場装置を、前記吊上げ装置を用いて、上部の第２
番の取水塔架設ブロツク側へ移動するとともに、
その取水塔架設ブロツクに着脱自在に取付け、上
記の取水塔架設ブロツク接続および取水塔架設用
足場装置移動を所定高さまで遂次繰返して取水塔
を架設することを特徴とする取水塔架設工法。 ２ 取水塔内を上下移動可能な床版と、その床版
を取水塔へ取付ける取付固定装置とからなること
を特徴とする取水塔架設用足場装置。[Scope of Claims] 1. The first water intake tower construction block is erected onto the foundation of the water intake tower using a lifting device provided on the upper part of the dam, and then the scaffolding device for constructing the water intake tower is erected using the lifting device provided above the dam. The second water intake tower construction block is inserted into the previously constructed water intake tower construction block using the lifting device, and is detachably attached to the water intake tower construction block. The first water intake tower construction block is stacked on top of the second intake tower construction block to connect both intake tower construction blocks, and the second water intake tower construction block is then lifted up using the lifting device.
While moving to the number water intake tower construction block side,
A water intake tower construction method characterized in that the water intake tower is removably attached to the water intake tower construction block, and the water intake tower is constructed by successively repeating the above-mentioned water intake tower construction block connection and movement of the water intake tower construction scaffolding device until a predetermined height. 2. A scaffolding device for constructing a water intake tower, comprising a floor slab that can be moved up and down within the water intake tower, and an attachment and fixing device for attaching the floor slab to the water tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6344386A JPS62220608A (en) | 1986-03-20 | 1986-03-20 | Intake tower erection work and scaffold device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6344386A JPS62220608A (en) | 1986-03-20 | 1986-03-20 | Intake tower erection work and scaffold device therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62220608A JPS62220608A (en) | 1987-09-28 |
| JPH0452802B2 true JPH0452802B2 (en) | 1992-08-24 |
Family
ID=13229399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6344386A Granted JPS62220608A (en) | 1986-03-20 | 1986-03-20 | Intake tower erection work and scaffold device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62220608A (en) |
-
1986
- 1986-03-20 JP JP6344386A patent/JPS62220608A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62220608A (en) | 1987-09-28 |
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