JP2520990Y2 - Consolidation unit for dam audit gallery - Google Patents
Consolidation unit for dam audit galleryInfo
- Publication number
- JP2520990Y2 JP2520990Y2 JP1989127842U JP12784289U JP2520990Y2 JP 2520990 Y2 JP2520990 Y2 JP 2520990Y2 JP 1989127842 U JP1989127842 U JP 1989127842U JP 12784289 U JP12784289 U JP 12784289U JP 2520990 Y2 JP2520990 Y2 JP 2520990Y2
- Authority
- JP
- Japan
- Prior art keywords
- dam
- joint end
- fitting
- connecting unit
- rubber
- 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 - Lifetime
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Description
【考案の詳細な説明】 （産業上の利用分野） 本考案はダムの堤体内に構築されるダム用監査廊の連
結ユニットに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a connection unit of a dam inspection corridor built in a dam body.
（従来の技術） ダムの堤体内には完成後の監査、各種の測定、堤体及
び基礎からの漏水の排水、基礎グラウチングの施工等の
ためにダム用監査廊が構築されている。(Prior Art) A dam inspection corridor is built in the dam body for inspection after completion, various measurements, drainage of water from the dam body and foundation, and construction of foundation grouting.
従来、このダム用監査廊はダムの堤体と同時に現場打
ちコンクリートにより構築されていた。Conventionally, this dam inspection corridor was constructed with cast-in-place concrete at the same time as the dam body.
これはダムの堤体におけるダム用監査廊の施工基面に
鉄筋を配筋して型枠を組立て、堤体のコンクリート打設
と共に前記型枠内にコンクリートを打設して構築するも
のである。This is to construct a formwork by arranging reinforcing bars on the construction base surface of the dam inspection corridor in the dam body, constructing the formwork, and placing concrete in the formwork together with concrete casting of the dam body. .
（考案が解決しようとする課題） しかしながら、上記のように現場打ちコンクリートで
ダム用監査廊を構築した場合には下記のような問題があ
った。(Problems to be solved by the invention) However, when the dam inspection corridor was constructed with cast-in-place concrete as described above, there were the following problems.
．鉄筋及び型枠の組立て等の特殊作業が必要となり、
その作業工程が堤体のコンクリート打設工程に大きな影
響を与えて工期の長期化を招くと共に、鉄筋工及び型枠
工等の人員の確保が非常に困難であった。. Special work such as rebar and formwork assembly is required,
The work process had a great influence on the concrete pouring process of the bank body, leading to a longer construction period, and it was very difficult to secure personnel such as a reinforcing bar work and a formwork work.
．コンクリート打設後の養生に多くの日数を必要とす
ると共に、コンクリート打継目が多くなってコンクリー
ト面の体裁が悪い。. It takes a lot of days for curing after placing concrete, and the number of joints for concrete is large and the appearance of the concrete surface is poor.
．グリーンカット等の作業と重複し、その調整と安全
管理に配慮が必要となってくる。. It is necessary to consider the adjustment and safety management because it overlaps with the work such as green cutting.
本考案はこれらの問題に鑑みてなされたものであり、
その目的はダム用監査廊を少ない労働力で且つ短期間に
構築することである。The present invention has been made in view of these problems,
The purpose is to build a dam audit corridor with less labor and in a short period of time.
（課題を解決するための手段） 以上のような課題を達成するための本考案の手段たる
構成は、多角形の筒状断面に形成される連結ユニット本
体と、該連結ユニット本体の両側の接合端面に埋設され
る複数の連結材と、前記接合端面の一方に突設されるシ
ール材とを含み、前記連結材により連結されて監査廊を
構築するダム用監査廊の連結ユニットであって、前記接
合端面の一方には、その全周にわたって、テーパ部を有
する嵌合突起が設けられ、前記接合端面の他方には、前
記嵌合突起を嵌合するための嵌合凹部が設けられるとと
もに、前記嵌合突起の全周にわたって、前記シール材の
貼着用凹溝が形成され、前記連結材が、作業可能空間に
対向して開口部を有し、かつ、ボルト挿通孔を備えた函
体の前面が前記接合端面と同一面上に臨むように埋設さ
れ、前記連結ユニット本体の底盤にはグラウト注入孔が
貫通されていることを特徴とし、前記シール材は、膨潤
性ゴムと非膨潤性ゴムとを1:4の厚さ比で積層し、同時
加硫することによって得られるゴム加硫物であり、相隣
る連結ユニットの接合端面同士に挾着され、前記連結材
をボルト締結する際に前記貼着用凹溝全体に広がるよう
な変形性能を有するものであることを特徴とすることで
ある。(Means for Solving the Problems) The structure as means of the present invention for achieving the above-mentioned object is to connect a connecting unit main body formed in a polygonal cylindrical cross section and joining both sides of the connecting unit main body. A connecting unit of a dam inspection corridor that includes a plurality of connecting members embedded in an end face and a sealing member protruding from one of the joint end faces, and is connected by the connecting member to construct an inspection corridor, One of the joining end surfaces is provided with a fitting protrusion having a tapered portion over the entire circumference thereof, and the other of the joining end surfaces is provided with a fitting recess for fitting the fitting protrusion, In a box body in which a sticking groove for the sealing material is formed over the entire circumference of the fitting protrusion, the connecting material has an opening facing the workable space, and a bolt insertion hole is provided. The front face is flush with the joint end face. And a grouting injection hole penetrates through the bottom plate of the connecting unit body.The sealing material is formed by laminating swelling rubber and non-swelling rubber at a thickness ratio of 1: 4. , A rubber vulcanizate obtained by simultaneous vulcanization, which is sandwiched between joint end faces of adjacent connecting units, and deforms so as to spread over the entire bonding groove when bolting the connecting member. It is characterized by having performance.
（作用） 多角形の筒状断面の連結ユニット本体と、複数の連結
材と、シール材とを含む連結ユニットが、シール材を介
して連結材により連結されてダム用監査廊を構築するの
で、予め工場において製作することができ、プレキャス
ト化を容易に行うことができる。(Operation) Since a connecting unit including a connecting unit main body having a polygonal tubular cross section, a plurality of connecting members, and a sealing member is connected by the connecting member via the sealing member to construct the dam inspection gallery, It can be manufactured in advance in a factory and can be easily precast.
したがって、型枠の組立・解体、鉄筋の組立て、コン
クリートの打設・養生等の作業を省略することができ、
省力化・工期短縮が図れる。Therefore, it is possible to omit the work of assembling and disassembling formwork, assembling the rebar, placing and curing concrete,
Labor saving and shortening of construction period can be achieved.
そして、テーパ部を有する嵌合突起を嵌合凹部に挿入
することにより、連結ユニット同士の位置あわせが容易
に行えるとともに、嵌合構造とすることによって接合部
の耐力が向上する。Then, by inserting the fitting protrusion having the tapered portion into the fitting concave portion, the connection units can be easily aligned with each other, and the fitting structure improves the yield strength of the joint portion.
さらに、シール材を連結ユニットの接合端面の全周に
わたって凹設された貼着用凹溝に貼着しておくことによ
って、止水効果が向上するとともに、シール材貼着作業
が容易になる。Furthermore, by adhering the sealing material to the adhering groove formed in a concave shape over the entire circumference of the joint end surface of the connecting unit, the water blocking effect is improved and the sealing material adhering operation is facilitated.
この場合、シール材としては、膨潤性ゴムと非膨潤性
ゴムとを1:4の厚さ比で積層し、同時加硫することによ
って得られるゴム加硫物を用いることが好ましい。In this case, it is preferable to use, as the sealing material, a rubber vulcanizate obtained by laminating a swelling rubber and a non-swelling rubber at a thickness ratio of 1: 4 and simultaneously vulcanizing.
そうすると、連結材をボルト締結する際に、シール材
が凹溝全体に広がるような変形性能を有するために、シ
ール効果が一段と向上する。Then, when the connecting member is bolted, the sealing material has a deforming property such that it spreads over the entire concave groove, so that the sealing effect is further improved.
また、作業可能空間に対向して開口させ、かつ、ボル
ト挿通孔を備えた函体の前面が接合端面と同一面上に臨
むように連結材を埋設しておくことにより、ボルト締結
作業を容易に行えるとともに、監査廊の上下及び左右が
壁面が同一面上となるように構築することができる。In addition, the connection material is embedded so that the front surface of the box body having the bolt insertion hole faces the same plane as the joint end surface so that the bolt fastening work can be easily performed. In addition to the above, the walls can be constructed so that the top, bottom, left and right sides of the audit corridor are on the same plane.
なお、連結ユニットを連結した後にグラフト注入を行
うことにより、構築された監査廊の全体が底盤コンクリ
ートに密着し、安全性を向上させることができる。In addition, by performing the graft injection after connecting the connecting units, the entire constructed inspection corridor can be brought into close contact with the bottom concrete, thus improving the safety.
（実施例） 以下、本考案の一実施例を図面に基づいて詳細に説明
する。(Embodiment) An embodiment of the present invention will be described below in detail with reference to the drawings.
第１図の（Ａ）はダム用監査廊の連結ユニットの正面
図、同図（Ｂ）は同背面図、同図（Ｃ）は同斜視図であ
る。1A is a front view of the connecting unit of the dam inspection corridor, FIG. 1B is a rear view thereof, and FIG. 1C is a perspective view thereof.
ダム用監査廊の連結ユニットＡは予め工場において鉄
筋コンクリートにより連結ユニット本体１がほぼ長方形
の筒体に形成され、その両側の接合端面1aの一方にシー
ル材４が突設された嵌合突起２、また他方に嵌合凹部３
を夫々備え、両側の接合端面1aにおける底壁内縁部1b、
両側壁及び上壁外縁部1cには夫々連結材５が埋設され、
底壁1dにはグラフト注入孔1eが貫通されている。The connecting unit A of the dam inspection corridor is a fitting protrusion 2 in which the connecting unit body 1 is formed in advance from a reinforced concrete into a substantially rectangular tubular body in a factory, and a sealing material 4 is projected on one of the joint end faces 1a on both sides thereof. On the other hand, the fitting recess 3
Each of which is provided with a bottom wall inner edge portion 1b on the joint end faces 1a on both sides,
The connecting members 5 are embedded in both side walls and the outer edge portion 1c of the upper wall,
A graft injection hole 1e penetrates through the bottom wall 1d.
嵌合突起２は一方の接合端面1aの内側に環状に突設さ
れて隣接する連結ユニット本体１の嵌合凹部３に嵌合さ
れるものであり、外側の立ち上がり部にテーパー部2aを
備えると共に中央部には凹溝2bが環状に凹設されてい
る。The fitting protrusion 2 is provided in an annular shape on the inside of the one joint end surface 1a and is fitted into the fitting recess 3 of the adjacent connecting unit body 1. The fitting protrusion 2 is provided with a taper portion 2a at the outer rising portion. A concave groove 2b is annularly provided in the center.
該凹溝2bは深さが0.4cm、下面幅が2.6cm、上面幅が3c
mの逆台形状に形成されてシール材４が接着剤で貼着さ
れている。The groove 2b has a depth of 0.4 cm, a lower surface width of 2.6 cm, and an upper surface width of 3 c.
The seal material 4 is formed in an inverted trapezoidal shape of m and is adhered with an adhesive.
嵌合凹部３は接合端面1aの内側に環状に凹設され、隣
接する連結ユニット本体１の嵌合突起が嵌合されるもの
であり、前記嵌合突起２の立ち上がり部のテーパー部2a
に対応するテーパー部3aを外側に備えている。The fitting recess 3 is formed in a ring shape inside the joining end face 1a, and the fitting projection of the adjacent connecting unit body 1 is fitted therein. The taper portion 2a of the rising portion of the fitting projection 2 is formed.
Is provided on the outside with a tapered portion 3a corresponding to.
前記シール材４は吸水性物質を配合した未加硫の膨潤
性ゴム4aと、該膨潤性ゴム4aより厚い未加硫の非膨潤性
ゴム4bをその容積比が20/80となるように積層した２層
構造で幅2cm×厚さ1cm（膨潤性ゴム2mm、非膨潤性ゴム8
mm）に同時加硫して長尺状に形成され、前記凹溝2bに非
膨潤性ゴム4bを下側にして貼着されている。The sealing material 4 is formed by stacking an unvulcanized swellable rubber 4a containing a water-absorbing substance and an unvulcanized non-swellable rubber 4b thicker than the swellable rubber 4a in a volume ratio of 20/80. 2 cm wide and 1 cm thick (swellable rubber 2 mm, non-swellable rubber 8
mm) and simultaneously formed into a long shape, and the non-swelling rubber 4b is attached to the groove 2b with the non-swelling rubber 4b facing downward.
前記膨潤性ゴム4aはクロロプレンゴム（CR）／スチレ
ン−ジエンランダム共重合ゴム（SBR）／天然ゴム（N
R）のブレンド系ゴム中に平均粒子径が10〜20μの高吸
水性樹脂を配合したものから成り、精製水に対して体積
膨張が1.8〜2.3倍になるように調整されたゴム加硫物か
らなる。The swelling rubber 4a is chloroprene rubber (CR) / styrene-diene random copolymer rubber (SBR) / natural rubber (N
R) A rubber vulcanizate prepared by blending a blended rubber with a superabsorbent resin having an average particle size of 10 to 20μ and having a volume expansion of 1.8 to 2.3 times that of purified water. Consists of.
また、非膨潤性ゴム4bはイソプレン−イソブチレン共
重合ゴム（IIR）からなり、ヤング率が５〜15kg/cm2を
有するゴム加硫物からなる。The non-swelling rubber 4b is made of isoprene-isobutylene copolymer rubber (IIR), and is made of a rubber vulcanizate having a Young's modulus of 5 to 15 kg / cm 2 .
而して、前記シール材４は連結ユニット本体１を連続
的に接続して締め付けると、第２図の（Ｃ）に示すよう
に、凹溝2b全体に拡がって連結ユニット本体同士１、
１′の連結部をシールすると共に、該連結部から水が浸
水した場合は前記膨潤性ゴム4aが膨張してそのシールを
完璧なものとする。When the sealing member 4 is continuously connected to the connecting unit bodies 1 and tightened, as shown in FIG.
The connecting portion 1'is sealed, and when water is infiltrated from the connecting portion, the swelling rubber 4a expands to perfect the seal.
前記連結材５は上面に開口部5cを備え、且つ前面5dに
ボルト挿通孔5eを備えた函体5aと該函体5aの両側面に取
付けられたＬ字状のアンカーボルト5bとによりなり、連
結ユニット本体１における接合端面1aの底壁内縁部1b及
び両側壁及び上壁外縁部1cに夫々埋設されている。The connecting member 5 is composed of a box body 5a having an opening 5c on the upper surface and a bolt insertion hole 5e on the front surface 5d, and L-shaped anchor bolts 5b attached to both side surfaces of the box body 5a. It is embedded in the bottom wall inner edge portion 1b, both side walls and the upper wall outer edge portion 1c of the joint end surface 1a in the connecting unit body 1, respectively.
また底壁内縁部1bの連結材５は函体5aの開口部5cを連
結ユニット本体１の内側に向けると共に、前面5dが連結
ユニット本体の接合端面1aと面一状になるように埋設さ
れる。The connecting member 5 of the inner edge 1b of the bottom wall is embedded so that the opening 5c of the box 5a faces the inside of the connecting unit body 1 and the front surface 5d is flush with the joint end surface 1a of the connecting unit body. .
他方両側壁及び上壁外縁部1cの連結材５は開口部5cを
連結ユニット本体１の外面側に向けると共に、前記と同
様に前面5dが連結ユニット本体１の接合面1aと面一状に
なるように埋設される。このように開口部5cを作業可能
な空間に向けて開口させておくことにより、ボルト締結
作業が容易になる。On the other hand, the connecting members 5 of the outer edge portions 1c of both side walls and the upper wall face the opening 5c toward the outer surface side of the connecting unit body 1, and the front surface 5d is flush with the joint surface 1a of the connecting unit body 1 as described above. To be buried as. By thus opening the opening 5c toward the workable space, the bolt fastening work becomes easy.
しかして、これら連結材５を介した連結ユニット本体
１の締結は、相隣る連結ユニットＡに埋設された連結材
５の前面5d同士が対向するので、該連結ユニット本体１
の内側と外側とからすることができるとともに、接合強
度が向上する。Therefore, when the connecting unit main body 1 is fastened via the connecting members 5, since the front surfaces 5d of the connecting members 5 embedded in the adjacent connecting units A face each other, the connecting unit main body 1 is fastened.
It can be done from the inside and outside, and the joint strength is improved.
グラフト注入孔1eはダム用監査廊の連結ユニットＡの
底壁1dに適宜間隔をもって２つ貫通されている。Two graft injection holes 1e are penetrated through the bottom wall 1d of the connection unit A of the dam inspection corridor at appropriate intervals.
次に本考案のダム用監査廊の連結ユニットＡを使用して
ダム用監査廊Ｂを構築する方法について説明する。Next, a method for constructing the dam inspection corridor B by using the connection unit A of the dam inspection corridor of the present invention will be described.
第４図の（Ａ）、（Ｂ）、（Ｃ）はダム用監査廊の連
結ユニットを使用して構築する状態を示した工程図、第
５図はダム用監査廊の連結ユニットを設置した状態の断
面図、第６図は同斜視図である。4 (A), (B), and (C) are process diagrams showing a state in which the connection unit of the dam inspection corridor is used for construction, and FIG. 5 shows the connection unit of the dam inspection corridor. FIG. 6 is a cross-sectional view of the state, and FIG.
まず初めに第４図の（Ａ）に示すように、ダムの堤体
Ｃにおける施工基面ａにレール６を敷設する。First, as shown in FIG. 4A, the rail 6 is laid on the construction base surface a of the dam body C.
レール６は等辺山形鋼（40×40×５）を用い、これを
前記堤体Ｃの施工基面ａに1m間隔をもって平行に突設し
た差筋6bに施工基面ａから5cm突出させて溶接する。The rail 6 is made of equilateral angle steel (40 × 40 × 5) and is welded by protruding 5 cm from the construction base surface a to the differential bar 6b projecting in parallel to the construction base surface a of the dam body C at intervals of 1 m. To do.
次に、該レール６の下部を埋設する基盤７をその上面
7aがレール１の頂部6aより3mm下側にくるようにモルタ
ルで打設する。Next, the base 7 for burying the lower portion of the rail 6 is attached to the upper surface thereof.
Place it with mortar so that 7a is 3mm below the top 6a of the rail 1.
そして前記レール６上にダム用監査廊の連結ユニット
ＡをクレーンＫで吊り下げて連続的に載置してチェーン
ブロック（図示せず）で互いに引き寄せる。Then, the connecting unit A of the dam inspection gallery is hung by the crane K on the rail 6 and continuously placed, and is pulled together by a chain block (not shown).
この際、ダム用監査廊の連結ユニットＡの底壁1dの下面
と基盤７の上面7aとの間には3mmの間隙部ｍが形成され
る。At this time, a gap m of 3 mm is formed between the lower surface of the bottom wall 1d of the connecting unit A of the dam inspection gallery and the upper surface 7a of the base 7.
そしてこれら互いに引き寄せたダム用監査廊の連結ユ
ニットＡの嵌合突起２を隣接するダム用監査廊の連結ユ
ニットＡ′の嵌合凹部３′に嵌合する。Then, the fitting protrusions 2 of the connecting unit A of the dam inspection corridor that are attracted to each other are fitted into the fitting recesses 3'of the connecting unit A'of the adjacent dam inspection corridor.
このとき、両側の接合端面1aの底壁内縁部1b及び両側
壁及び上壁外縁部1cに埋設した連結材５は互に函体5aの
前面5dが当接されるので、函体５の開口部5cから前面5d
のボルト挿通孔5eに連結ボルト5fを挿入し、ダム用監査
廊の連結ユニットＡ、Ａ′…をチェーンブロックで互に
引き寄せつつ底壁内縁部1b及び上壁外縁部1cの連結材５
を同時に締め付ける。At this time, the connecting members 5 embedded in the bottom wall inner edge portion 1b and the both side walls and the upper wall outer edge portion 1c of the joint end surface 1a on both sides are brought into contact with the front surface 5d of the box 5a, so that the opening of the box 5 is opened. Part 5c to front 5d
The connecting bolt 5f is inserted into the bolt insertion hole 5e of the, and the connecting member 5 of the bottom wall inner edge portion 1b and the upper wall outer edge portion 1c while pulling the connection units A, A '... of the dam inspection gallery together by the chain block.
Tighten at the same time.
次に、両側壁外縁部1cの連結材５のボルト挿通孔5eに
外側から連結ボルト5fを挿入してこれらを締め付ける。Next, the connecting bolts 5f are inserted from the outside into the bolt insertion holes 5e of the connecting member 5 of the outer edge portions 1c of both side walls, and these are fastened.
そしてこれらのダム用監査廊の連結ユニットＡを連続的
に接続することによりダム用監査廊Ｂが形成される。The dam inspection gallery B is formed by continuously connecting the connecting units A of the dam inspection gallery.
またこの連結ボルト5fの締め付け力は１箇所あたり20
00トルクであり、連結材５の設置間隔が約1.5mmを目安
とする。すなわち、シール材４がボルト締結によって圧
縮変形を生じても、連結ユニットＡの接合端面間には若
干の空隙を保持した状態で連結される。The tightening force of this connecting bolt 5f is 20
The torque is 00, and the interval between the connecting members 5 is set to about 1.5 mm. That is, even if the sealing material 4 is compressed and deformed by bolt fastening, it is connected with a slight gap maintained between the joint end surfaces of the connecting unit A.
次に、監査廊の連結ユニットＡを連続的に接続した後
に残りのダムの堤体Ｄを構築すると共に、ダム用監査廊
Ｂ内側のグラウト注入孔1eからグラウトをダム用監査廊
Ｂ下側の間隙部ｍに充填すると、該グラウトは前記間隙
部ｍから監査廊における連結部外周の隙間部ｎにも注入
されて連結部のシールをより完璧なものとする。Next, after continuously connecting the connecting units A of the inspection corridor, the dam body D of the remaining dam is constructed, and the grout is injected from the grout injection hole 1e inside the dam inspection corridor B to the bottom of the dam inspection corridor B. When the gap m is filled, the grout is also injected from the gap m into the gap n on the outer periphery of the connecting portion in the inspection corridor to complete the seal of the connecting portion.
（考案の効果） 本考案は以上のような構成にしたことにより下記の効
果を有する。(Effects of the Invention) The present invention has the following effects due to the configuration as described above.
連結ユニットをプレキャスト化し、その接合端面にシ
ール材を介して嵌合構造とボルト締結とを併用したこと
により、大きな接合強度及び耐水性に優れたダム監査廊
を、少ない労働力でかつ短期間に構築することができ
る。By precasting the connecting unit and using a fitting structure and bolt fastening together with a sealing material on the joint end surface, a dam inspection corridor excellent in large joint strength and water resistance can be created with less labor and in a short period of time. Can be built.
膨潤性ゴムと非膨潤性ゴムとを1:4の厚さ比で積層
し、同時加硫して得られるシール材を用いることによ
り、ボルト締結によって該シール材が凹溝全体に広がる
ように変形するのでシール効果が一段と向上する。A swelling rubber and a non-swelling rubber are laminated at a thickness ratio of 1: 4, and by using a sealing material obtained by simultaneous vulcanization, the sealing material is deformed so that it spreads over the entire groove by bolt fastening. Therefore, the sealing effect is further improved.
第１図の（Ａ）は本考案のダム用監査廊の連結ユニット
の正面図、同図（Ｂ）は同背面図、同図（Ｃ）は同斜視
図、第２図の（Ａ）は連結部の拡大断面図、同図（Ｂ）
は連結材を締付ける前のシール材の拡大断面図、同図
（Ｃ）は連結材を締付けた後のシール材の拡大断面図、
第３図の（Ａ）は締付けた状態の連結材の拡大平面図、
同図（Ｂ）は（Ａ）のＩ−Ｉ線断面図、同図（Ｃ）は連
結材の斜視図、第４図の（Ａ）、（Ｂ）、（Ｃ）はダム
用監査廊の連結ユニットを使用してダム用監査廊を構築
する工程図、第５図はダム用監査廊の連結ユニットを設
置した状態の断面図、第６図は同斜視図である。 また図中、 A:ダム用監査廊の連結ユニット 1:連結ユニット本体、1a:接合端面 1b:内縁部、1c:外縁部 1d:底壁、1e:グラフト注入孔 2:嵌合突起、2a:テーパ部、2b:凹溝、3:嵌合凹部 4:シール材、4a:膨潤性ゴム、4b:非膨潤性ゴム、B:ダム
用監査廊、5:連結材 5a:函体、5b:アンカーボルト 5c:開口部、5d:前面 5e:ボルト挿通孔1A is a front view of the connecting unit of the dam inspection corridor of the present invention, FIG. 1B is a rear view thereof, FIG. 1C is a perspective view thereof, and FIG. Enlarged cross-sectional view of the connecting portion, same figure (B)
Is an enlarged sectional view of the sealing material before tightening the connecting material, and FIG. 6C is an enlarged sectional view of the sealing material after tightening the connecting material.
FIG. 3 (A) is an enlarged plan view of the connecting member in a tightened state,
(B) is a cross-sectional view taken along the line I-I of (A), (C) is a perspective view of a connecting member, and (A), (B), and (C) of FIG. 4 are dam inspection corridors. FIG. 5 is a process diagram of constructing a dam inspection corridor using a connecting unit, FIG. 5 is a cross-sectional view of a dam inspection corridor connecting unit installed, and FIG. 6 is a perspective view thereof. In the figure, A: Connection unit of dam inspection gallery 1: Connection unit body, 1a: Joining end face 1b: Inner edge, 1c: Outer edge 1d: Bottom wall, 1e: Graft injection hole 2: Fitting protrusion, 2a: Tapered part, 2b: Recessed groove, 3: Fitting concave part 4: Seal material, 4a: Swelling rubber, 4b: Non-swelling rubber, B: Dam corridor, 5: Connecting material 5a: Box, 5b: Anchor Bolt 5c: Opening, 5d: Front 5e: Bolt insertion hole
フロントページの続き (72)考案者 川原 忠夫 東京都港区新橋１丁目８番３号 日本コ ンクリート工業株式会社内 (72)考案者 白岩 督啓 東京都港区新橋１丁目８番３号 日本コ ンクリート工業株式会社内 (56)参考文献 実開 昭62−55631（ＪＰ，Ｕ) 実開 昭53−146236（ＪＰ，Ｕ) 実開 昭52−98937（ＪＰ，Ｕ) 実開 昭58−21085（ＪＰ，Ｕ) 実開 昭64−53282（ＪＰ，Ｕ) 実公 昭48−1546（ＪＰ，Ｙ１)Front page continuation (72) Inventor Tadao Kawahara 1-3-8 Shimbashi, Minato-ku, Tokyo Inside Nippon Concrete Industry Co., Ltd. (72) Inventor Masahiro Shiraiwa 1-3-8 Shimbashi, Minato-ku, Tokyo Japan Ncreet Industry Co., Ltd. (56) References Open 62-55631 (JP, U) Open 53-146236 (JP, U) Open 52-98937 (JP, U) Open 58-21085 ( JP, U) Actually open 64-53282 (JP, U) Actually public 48-1546 (JP, Y1)
Claims (2)
ト本体と、該連結ユニット本体の両側の接合端面に埋設
される複数の連結材と、前記接合端面の一方に突設され
るシール材とを含み、前記連結材により連結されて監査
廊を構築するダム用監査廊の連結ユニットであって、前
記接合端面の一方には、その全周にわたって、テーパ部
を有する嵌合突起が設けられ、前記接合端面の他方に
は、前記嵌合突起を嵌合するための嵌合凹部が設けられ
るとともに、前記嵌合突起の全周にわたって、前記シー
ル材の貼着用凹溝が形成され、前記連結材が、作業可能
空間に対向して開口部を有し、かつ、ボルト挿通孔を備
えた函体の前面が前記接合端面と同一面上に臨むように
埋設され、前記連結ユニット本体の底盤にはグラフト注
入孔が貫通されていることを特徴とするダム用監査廊の
連結ユニット。1. A connecting unit main body formed in a polygonal tubular cross section, a plurality of connecting members embedded in joint end faces on both sides of the connecting unit main body, and a seal protruding from one of the joint end faces. A connecting unit of a dam inspection gallery, which includes a member and is connected by the connecting member to construct an inspection gallery, wherein a fitting projection having a tapered portion is provided on one of the joint end faces along the entire circumference thereof. The other end of the joint end face is provided with a fitting recess for fitting the fitting protrusion, and a sticking groove for the sealing material is formed over the entire circumference of the fitting protrusion. The connecting member is embedded so that the front surface of the box having the opening facing the workable space and having the bolt insertion hole faces the same side as the joint end surface, and the bottom plate of the connecting unit main body. Has a graft injection hole Coupling units dam inspection gallery, characterized in that.
ムとを1:4の厚さ比で積層し、同時加硫することによっ
て得られるゴム加硫物であり、相隣る連結ユニットの接
合端面同士に挾着され、前記連結材をボルト締結する際
に前記貼着用凹溝全体に広がるような変性性能を有する
ものであることを特徴とする請求項１に記載のダム用監
査廊の連結ユニット。2. The sealing material is a rubber vulcanizate obtained by laminating a swelling rubber and a non-swelling rubber at a thickness ratio of 1: 4, and simultaneously vulcanizing them, which are adjacent to each other. The dam inspection according to claim 1, wherein the unit has a modification property such that it is sandwiched between the joint end faces of the unit and spreads over the entire bonding groove when the connecting member is bolted. Corridor connection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127842U JP2520990Y2 (en) | 1989-11-02 | 1989-11-02 | Consolidation unit for dam audit gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127842U JP2520990Y2 (en) | 1989-11-02 | 1989-11-02 | Consolidation unit for dam audit gallery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369026U JPH0369026U (en) | 1991-07-09 |
| JP2520990Y2 true JP2520990Y2 (en) | 1996-12-18 |
Family
ID=31675584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989127842U Expired - Lifetime JP2520990Y2 (en) | 1989-11-02 | 1989-11-02 | Consolidation unit for dam audit gallery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520990Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5290714B2 (en) * | 2008-11-27 | 2013-09-18 | 株式会社フジタ | PRECAST CONCRETE MEMBER FOR WAVE RETURN PART OF DAM WALL WALL |
| JP5956032B1 (en) * | 2015-07-23 | 2016-07-20 | 一般財団法人ダム技術センター | Method for constructing dam corridor, corridor cell of dam corridor and formwork used for manufacturing corridor cell |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5027718Y2 (en) * | 1971-05-26 | 1975-08-16 | ||
| JPS5298937U (en) * | 1976-01-24 | 1977-07-26 | ||
| JPS607435Y2 (en) * | 1977-04-25 | 1985-03-12 | 徳弘 梅沢 | Joint structure of U-shaped waterway block |
| JPS5821085U (en) * | 1981-07-29 | 1983-02-09 | 藤村 一夫 | Connection structure of concrete members |
| JPH042187Y2 (en) * | 1985-09-20 | 1992-01-24 | ||
| JPS6453282U (en) * | 1987-09-26 | 1989-04-03 |
-
1989
- 1989-11-02 JP JP1989127842U patent/JP2520990Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0369026U (en) | 1991-07-09 |
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