JP2000145392A - Tunnel execution method - Google Patents
Tunnel execution methodInfo
- Publication number
- JP2000145392A JP2000145392A JP10313671A JP31367198A JP2000145392A JP 2000145392 A JP2000145392 A JP 2000145392A JP 10313671 A JP10313671 A JP 10313671A JP 31367198 A JP31367198 A JP 31367198A JP 2000145392 A JP2000145392 A JP 2000145392A
- Authority
- JP
- Japan
- Prior art keywords
- water
- tunnel
- lining layer
- sheet
- leakage prevention
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉄道線路や道路を
通すためのトンネルの施工法、特にトンネル内の止水、
排水工事を伴う施工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a tunnel for passing a railway line or a road, and particularly to a method for stopping water in a tunnel.
It relates to a construction method involving drainage work.
【０００２】[0002]
【従来技術】鉄道線路や道路を通すための従来のトンネ
ルの施工は、通例、次の順序の工程で行なわれている
（図５参照）。すなわち、（ｉ）断面ほぼ円形のトンネ
ルを穿つ工程、（ii）トンネルの底部を除いて、トンネ
ル内壁の表面にコンクリートを吹き付けて一次覆工層３
１を形成させる工程、（iii）一次覆工層３１の端部と
重複するように、底部表面に一定の厚さにコンクリート
を打設してインバート３２を設ける工程、（iｖ）イン
バート３２の両端のやや上方に誘水体３３，３４をトン
ネルの長さ方向に沿って取り付け固定する工程、（ｖ）
一次覆工層３１及び誘水体３３，３４を覆うように止水
シート３５を張り、止水シート３５の下端部をインバー
ト３１に打鋲３６，３７で固定する工程、（ｖi）止水
シート３５の表面にコンクリートを打設して二次覆工層
３８を設ける工程、（ｖii）誘水体３３，３４にそれぞ
れ繋がる排水用配管３９，４０及び排水管４１をインバ
ート３２上に配置する工程、（ｖiii）インバート３２
の上に所定の高さまでコンクリート打ちして、鉄道線路
面や道路面を形成するための埋め戻し層４２を形成して
路面を成層する工程、からなる。この従来の施工法で
は、工事中に、止水シート３５の下端部に溜った水がイ
ンバート３２と二次覆工層３８との境目から滲み出し、
この滲み出た水がインバート３２の上面に溜まり、工事
作業環境を悪くするという問題点があった。2. Description of the Related Art Conventionally, the construction of a conventional tunnel for passing a railway line or a road is performed in the following sequence of steps (see FIG. 5). That is, (i) a step of drilling a tunnel having a substantially circular cross section, (ii) concrete is sprayed on the surface of the inner wall of the tunnel except for the bottom of the tunnel, and the primary lining layer 3 is formed.
1), (iii) a step of casting concrete to a constant thickness on the bottom surface so as to overlap an end of the primary lining layer 31 to provide the invert 32, and (iv) both ends of the invert 32. (V) a step of mounting and fixing the water guides 33 and 34 slightly along the length of the tunnel.
A step of stretching a water-stop sheet 35 so as to cover the primary lining layer 31 and the water guides 33 and 34, and fixing the lower end of the water-stop sheet 35 to the invert 31 with rivets 36 and 37; (vi) a water-stop sheet 35 (Vii) arranging drainage pipes 39 and 40 and a drainage pipe 41 on the invert 32, which are connected to the water guides 33 and 34, respectively. viii) Invert 32
A concrete back up to a predetermined height to form a backfill layer 42 for forming a railway track surface or a road surface to form a road surface. In this conventional construction method, during construction, water accumulated at the lower end of the water stop sheet 35 oozes out from the boundary between the invert 32 and the secondary lining layer 38,
The oozed water accumulates on the upper surface of the invert 32, which causes a problem of deteriorating the construction work environment.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記の事情
に鑑みなされたもので、工事中に二次覆工層とインバー
トの境目から水が滲み出すのを極力減少させインバート
上に水が溜まるのを防ぎ、またトンネル内壁から滲み出
る水の排水を円滑に行なえるようにした構造のトンネル
の施工法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and minimizes water seepage from a boundary between a secondary lining layer and an invert during construction, thereby reducing water on the invert. An object of the present invention is to provide a construction method of a tunnel having a structure that prevents accumulation and allows drainage of water oozing from an inner wall of the tunnel to be smoothly performed.
【０００４】[0004]
【課題を解決するための手段】すなわち、本発明は、
（１）断面ほぼ円形のトンネルを穿つ工程、（２）トン
ネル内壁の表面に、底部を除いてコンクリートを吹き付
けて一次覆工層１を形成する工程、（３）トンネル内壁
の両側下方部にトンネルの長さ方向に沿って誘水体２，
３を配設する工程、（４）一次覆工層１の表面に、天井
部から両側部の誘水体２，３設置部分のややの上方まで
覆う止水シート４を張り、打鋲などにより固定する工
程、（５）誘水体２，３設置部を覆う漏水防止シート
５，６を張り、その上端部を止水シート４に水密接続
７，８する工程、（６）トンネルの底部に、漏水防止シ
ート５，６の下部端部９，１０を埋め込むように一定の
厚さにコンクリートを打設してインバート１１を設ける
工程、（７）止水シート４及び漏水防止シート５，６の
表面にコンクリートを打設して二次覆工層１２を形成す
る工程、（８）誘水体２，３に排水用配管１３、１４を
それぞれ接続する工程を行なうことを特徴とするトンネ
ルの施工法である。That is, the present invention provides:
(1) a step of drilling a tunnel having a substantially circular cross section; (2) a step of forming a primary lining layer 1 by spraying concrete on the surface of the inner wall of the tunnel except for the bottom, and (3) a tunnel on both lower sides of the inner wall of the tunnel. Along the length of the water body 2,
(4) A water-stop sheet 4 covering the surface of the primary lining layer 1 from the ceiling to slightly above the water guides 2 and 3 installation portions on both sides is fixed, and is fixed with a driving fastener or the like. (5) Steps of attaching water-leak prevention sheets 5 and 6 covering the installation portions of the water-inducing bodies 2 and 3 and connecting the upper ends of the sheets 7 and 8 to the water-stop sheet 4 in a water-tight manner. A step of casting concrete to a constant thickness so as to embed the lower end portions 9 and 10 of the prevention sheets 5 and 6 to provide the inverts 11, (7) on the surfaces of the water stop sheet 4 and the water leakage prevention sheets 5 and 6 A tunnel construction method characterized by performing a step of casting concrete to form a secondary lining layer 12, and (8) a step of connecting drainage pipes 13 and 14 to the water guides 2 and 3, respectively. .
【０００５】また本発明は、（１）断面ほぼ円形のトン
ネルを穿つ工程、（２）トンネル内壁の表面に、底部を
除いてコンクリートを吹き付けて一次覆工層１を形成す
る工程、（３）一次覆工層１の表面に、天井部から両側
部の誘水体２，３設置予定部のややの上方まで覆う止水
シート４を張り、打鋲などにより固定する工程、（４）
トンネル内壁の両側下方部にトンネルの長さ方向に沿っ
て、表側部に漏水防止シート５，６をそれぞれ接合した
誘水体２，３を配設し、その漏水防止シート５，６の上
端部を止水シート４に水密接続７，８する工程、（５）
トンネルの底部に、漏水防止シート５，６の下部端部
９，１０を埋め込むように一定の厚さにコンクリートを
打設してインバート１１を設ける工程、（６）止水シー
ト４及び漏水防止シート５，６の表面にコンクリートを
打設して二次覆工層１２を形成する工程、（７）誘水体
２，３に排水用配管１３、１４をそれぞれ接続する工程
を行なうことを特徴とするトンネルの施工法である。Further, the present invention provides (1) a step of drilling a tunnel having a substantially circular cross section, (2) a step of forming a primary lining layer 1 by spraying concrete on the surface of the inner wall of the tunnel except for the bottom, and (3). (4) a step of stretching a waterproof sheet 4 covering the surface of the primary lining layer 1 from the ceiling to slightly above the water guides 2 and 3 to be installed on both sides, and fixing the waterproof sheet 4 with a fastener,
Along the length direction of the tunnel, both sides of the inner wall of the tunnel, along the length direction of the tunnel, are provided with water guides 2, 3 joined to the water leakage prevention sheets 5, 6, respectively. A step of making watertight connections 7 and 8 to the waterproof sheet 4 (5)
A step of casting concrete to a constant thickness to bury the lower ends 9 and 10 of the water leakage prevention sheets 5 and 6 at the bottom of the tunnel to provide an invert 11; (6) a water stoppage sheet 4 and a water leakage prevention sheet A step of forming concrete on the surfaces of 5, 6 to form a secondary lining layer 12, and (7) a step of connecting drainage pipes 13, 14 to the water guides 2, 3, respectively. This is a tunnel construction method.
【０００６】[0006]
【発明の実施の形態】本発明について、その一例を図１
で説明する。図１は本発明の施工法を用いて完成させた
トンネルの断面図である。１は一次覆工層、２と３は誘
水体、４は止水シート、５と６は漏水防止シート、７と
８は止水シート４と漏水防止シート５，６との水密接続
部、９と１０は漏水防止シート５，６の下端部、１１は
インバート、１２は二次覆工層、１３と１４は排水用配
管、１５は排水管、１６は路面形成用コンクリートであ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the present invention is shown in FIG.
Will be described. FIG. 1 is a sectional view of a tunnel completed by using the construction method of the present invention. 1 is a primary lining layer, 2 and 3 are water guides, 4 is a water-stop sheet, 5 and 6 are water-leak prevention sheets, 7 and 8 are water-tight connections between the water-stop sheet 4 and water-leak prevention sheets 5 and 6, 9 Reference numerals 10 and 10 denote lower end portions of the water leakage prevention sheets 5 and 6, 11 denotes an invert, 12 denotes a secondary lining layer, 13 and 14 denote drain pipes, 15 denotes a drain pipe, and 16 denotes a road surface forming concrete.
【０００７】本発明の施工法を請求項１発明について説
明する。先ず、穿ったトンネルの内壁にコンクリートを
吹き付けて一次覆工層１を形成させる。この一次覆工層
１はトンネルの底部を除いて内壁全面に施す。トンネル
の両側の下方部に長さ方向に沿って、一次覆工層１の上
に誘水体２，３を配設する。また、一次覆工層１の表面
に、天井部から両側部の誘水体２，３設置部のやや上方
まで止水シート４を張り、打鋲などで固定する。そし
て、誘水体２，３を覆うように漏水防止シート５，６を
張り、この漏水防止シート５，６の上端部を止水シート
４の下端部と重ね合わせる。そして、この重ね合わせた
部分を溶着などによって水密接続７，８する。次いで、
トンネル底部にインバート１１を設ける。インバート１
１はトンネルの底部の内壁に沿ってほぼ一定の厚さにコ
ンクリートを打設して設ける。このとき、漏水防止シー
ト５，６の下端部をインバート１１に埋め込む。その
後、止水シート４及び漏水防止シート５，６の表面にコ
ンクリートを打設して二次覆工層１２を形成する。この
コンクリートの打設によってトンネル内面を仕上げる。
誘水体２，３に排水用配管１３，１４をそれぞれ接続す
る。この排水用配管１３，１４は通例の如く排水管１５
に導かれる。最後にインバート１１の上に所定の高さま
で適宜な埋め戻し材で埋め戻し層１６を形成し、更にそ
の上面にコンクリート打ちなどして、鉄道線路面や道路
面等の路面を成層する。なお、上記の工程で、誘水体
２，３を配設する工程と止水シート４を張着する工程は
前後してもよい。The construction method of the present invention will be described with reference to the first aspect of the present invention. First, the primary lining layer 1 is formed by spraying concrete on the inner wall of the pierced tunnel. This primary lining layer 1 is applied to the entire inner wall except for the bottom of the tunnel. The water guides 2 and 3 are arranged on the primary lining layer 1 along the length direction at the lower part on both sides of the tunnel. Further, on the surface of the primary lining layer 1, a waterproof sheet 4 is stretched from the ceiling to slightly above the installation portions of the water guides 2 and 3 on both sides, and is fixed with a fastener. Then, the water leakage prevention sheets 5 and 6 are stretched so as to cover the water guiding bodies 2 and 3, and the upper ends of the water leakage prevention sheets 5 and 6 are overlapped with the lower end of the water stop sheet 4. Then, the overlapped portions are water-tightly connected 7 and 8 by welding or the like. Then
An invert 11 is provided at the bottom of the tunnel. Invert 1
1 is provided by casting concrete to a substantially constant thickness along the inner wall at the bottom of the tunnel. At this time, the lower ends of the water leakage prevention sheets 5 and 6 are embedded in the invert 11. Then, concrete is cast on the surfaces of the water stoppage sheet 4 and the water leakage prevention sheets 5 and 6 to form the secondary lining layer 12. The inside of the tunnel is finished by casting this concrete.
Drainage pipes 13 and 14 are connected to the water inducers 2 and 3, respectively. The drain pipes 13 and 14 are connected to a drain pipe 15 as usual.
It is led to. Finally, a backfill layer 16 is formed on the invert 11 with a suitable backfill material to a predetermined height, and a concrete surface is struck on the upper surface to form a road surface such as a railway track surface or a road surface. In the above steps, the step of disposing the water guides 2 and 3 and the step of attaching the water-stop sheet 4 may be performed before or after.
【０００８】請求項２発明は、請求項１発明において、
誘水体２，３のそれぞれの表側に漏水防止シート５，６
を接合させて一体化して用いた場合の施工法の態様であ
る。すなわち、請求項１発明と同様に、先ず、穿ったト
ンネルの内壁にコンクリートを吹き付けて一次覆工層１
を形成させる。この一次覆工層１の表面に、天井部から
両側部の誘水体２，３設置予定部のややの上方まで覆う
止水シート４を張り、打鋲などにより固定する。トンネ
ル内壁の両側下方部にトンネルの長さ方向に沿って、表
側部に漏水防止シート５，６をそれぞれ接合した誘水体
２，３を配設する。そして、誘水体２，３に接合し一体
化した漏水防止シート５，６の上端部を止水シート４に
水密接続７，８する。次いで、トンネル底部にインバー
ト１１を設ける。インバート１１はトンネルの底部の内
壁に沿ってほぼ一定の厚さにコンクリートを打設して設
ける。このとき、漏水防止シート５，６の下端部をイン
バート１１に埋め込む。その後、止水シート４及び漏水
防止シート５，６の表面にコンクリートを打設して二次
覆工層１２を形成する。誘水体２，３に排水用配管１
３，１４をそれぞれ接続する。この排水用配管１３，１
４は通例の如く排水管１５に導かれる。最後にインバー
ト１１の上に所定の高さまで適宜な埋め戻し材で埋め戻
し層１６を形成し、更にその上面にコンクリート打ちな
どして、鉄道線路面や道路面等の路面を成層する。[0008] The invention of claim 2 is based on the invention of claim 1,
Water leakage prevention sheets 5 and 6 are provided on the front sides of the water induction bodies 2 and 3, respectively.
It is an aspect of a construction method in the case of joining and integrating them. That is, similarly to the first aspect of the present invention, first, concrete is sprayed on the inner wall of the tunnel that has been drilled to form the primary lining layer 1.
Is formed. On the surface of the primary lining layer 1, a waterproof sheet 4 covering from the ceiling to slightly above the portions where the water guides 2 and 3 are to be installed on both sides is stretched, and is fixed with a fastener. Along the length direction of the tunnel, lower and upper portions of both sides of the inner wall of the tunnel are provided with water-guiding bodies 2 and 3 respectively joined to the water leakage prevention sheets 5 and 6 on the front side. The upper ends of the water leakage prevention sheets 5 and 6 joined and integrated with the water guides 2 and 3 are watertightly connected 7 and 8 to the water stop sheet 4. Next, an invert 11 is provided at the bottom of the tunnel. The invert 11 is provided by casting concrete to a substantially constant thickness along the inner wall at the bottom of the tunnel. At this time, the lower ends of the water leakage prevention sheets 5 and 6 are embedded in the invert 11. Then, concrete is cast on the surfaces of the water stoppage sheet 4 and the water leakage prevention sheets 5 and 6 to form the secondary lining layer 12. Drainage pipe 1 for the water induction bodies 2 and 3
3 and 14 are connected respectively. This drainage pipe 13, 1
4 is led to a drain 15 as usual. Finally, a backfill layer 16 is formed on the invert 11 with a suitable backfill material to a predetermined height, and a concrete surface is struck on the upper surface to form a road surface such as a railway track surface or a road surface.
【０００９】本発明の施工法による完成後のトンネルに
おいては、穿ったトンネルの壁面から滲み出る湧き水
は、止水シート４によって誘水体２，３に導かれ、誘水
体２，３の排水取り出し口から排水用配管１３，１４を
経て排水管１５に流れ込み、排水管１５を通ってトンネ
ル外に排出される。しかして、図５に示すような従来の
トンネル施工法においては、止水シートがインバートと
二次覆工層に挟まれた状態で存在するため、道路面や鉄
道線路面を成層するコンクリートを打設する前の工事過
程においては、このインバートと二次覆工層の境目から
水が滲み出てインバート上に溜り、足場を悪くし、作業
に支障を来すことがあったが、本発明の施工法方では止
水シートの下端部がインバートに埋め込まれているた
め、水がインバート上に漏出することがないので上記の
問題が解消される。In the completed tunnel according to the construction method of the present invention, the spring water oozing from the wall of the pierced tunnel is guided to the water-inducing bodies 2 and 3 by the water-stop sheet 4, and the drain outlets of the water-inducing bodies 2 and 3. Flows through the drain pipes 13 and 14 into the drain pipe 15 and is discharged through the drain pipe 15 to the outside of the tunnel. However, in the conventional tunnel construction method as shown in FIG. 5, since the water-stop sheet is sandwiched between the invert and the secondary lining layer, the concrete that stratifies the road surface or the railway track surface is struck. In the construction process before installation, water oozed out from the boundary between the invert and the secondary lining layer and accumulated on the invert, deteriorating the scaffolding, and hindering work. In the construction method, since the lower end of the waterproof sheet is embedded in the invert, the above problem is solved because water does not leak onto the invert.
【００１０】図２を用いて、本発明の施工法を更に詳し
く説明する。この図２は本発明のトンネルの施工過程の
一態様を示す部分拡大断面図である。穿ったトンネルの
内壁にコンクリートを吹き付けて一次覆工層１を形成さ
せる。この一次覆工層１はトンネルの底部を除いて内壁
全面に施す。トンネルの両側の下方部に長さ方向に沿っ
て、一次覆工層１の上に誘水体２を配置する。この誘水
体２は、並列に並べた所望本数（ここでは３本）の長尺
の通水管１９を両側から通水シート２０、２１で挾み、
通水シート２１で通水管１９を包込むようにしてその折
り曲げ部を通水シート２０に接着した構造になってい
る。通水シートは不織布、網状シート、織布などであ
る。通水管１１は、剛性、弾性があり、周面に多数の孔
を有する合成樹脂管や合成樹脂網で構成した管で、その
断面形状は円形、楕円形、矩形など適宜の形状である。
誘水体２の配設は、誘水体２の通水シート２０、２１の
幅方向の上端部を打鋲２３で固定することによって行な
う。この打鋲の際、必要に応じてフラットバー２４を介
して打鋲してもよい。また、誘水体２の下端部はそのま
まにしておいても、打鋲によって一次覆工層１に固定し
てもよい。The construction method of the present invention will be described in more detail with reference to FIG. FIG. 2 is a partially enlarged cross-sectional view showing one embodiment of a tunnel construction process of the present invention. Concrete is sprayed on the inner wall of the pierced tunnel to form the primary lining layer 1. This primary lining layer 1 is applied to the entire inner wall except for the bottom of the tunnel. A water guide 2 is arranged on the primary lining layer 1 along the length direction at the lower part on both sides of the tunnel. This water guide 2 sandwiches a desired number (three in this case) of long water pipes 19 arranged in parallel with water flow sheets 20 and 21 from both sides.
The water passage sheet 21 wraps the water passage pipe 19, and the bent portion is bonded to the water passage sheet 20. The water-permeable sheet is a nonwoven fabric, a mesh sheet, a woven fabric, or the like. The water pipe 11 has rigidity and elasticity, and is made of a synthetic resin pipe or a synthetic resin net having a large number of holes on its peripheral surface. The cross-sectional shape is an appropriate shape such as a circle, an ellipse, and a rectangle.
The arrangement of the water guide 2 is performed by fixing the upper ends of the water-permeable sheets 20 and 21 of the water guide 2 in the width direction with the rivets 23. At the time of this driving, the driving may be performed via the flat bar 24 as necessary. Further, the lower end portion of the water guide 2 may be left as it is, or may be fixed to the primary lining layer 1 by a driving tack.
【００１１】一次覆工層１の表面に、トンネルの天井部
分及び側部の誘水体２の上方まで止水シート４を張り、
全面にわたって所々を打鋲などで一次覆工層１の表面に
固定する。止水シート４は合成樹脂シート層１７と不織
布シート層１８とを重ね合わせホットメルトなどの適宜
の接着剤で所々を接着した積層シートである。不織布シ
ート層が導水の役目をし、合成樹脂シート層が止水の役
目をする。次いで、誘水体２を覆うように漏水防止シー
ト５を被せる。このとき、漏水防止シート５は、その上
端部が止水シート４の下端部と重なるように、またその
下端部がインバート部に達するように配置する。止水シ
ート４と漏水防止シート５の重なった部分を熱溶着等の
溶着手段によって水密接続７する。また漏水防止シート
５の下端部９は打鋲２５によって一次覆工層１に固定す
る。この打鋲の際、必要に応じてフラットバー２６を介
して打鋲してもよい。上記の漏水防止シート５は合成樹
脂製シートで、例えば止水シート４の合成樹脂シート層
１７と同じものでもよい。また、漏水防止シート５は所
々ホットメルト接着剤などで誘水体２の通水シート２０
に接着してもよい。その後に、コンクリートを打設して
インバート１１を設ける。このとき、漏水防止用シート
５の下端部の打鋲２５で固定した部分がインバート１１
に埋まるようにする。２７は誘水体２に集まった水を取
り出すための排水取り出し口である。この排水取り出し
口は排水用配管１３に繋がる。これ以降の工程は前述し
たと同じ工程を行なってトンネルを完成する。図２は、
トンネルの片側のみについて説明したが、他の側も同様
に処置する。On the surface of the primary lining layer 1, a waterproof sheet 4 is stretched up to the ceiling part and the side of the tunnel above the water guide 2.
The entire surface is fixed to the surface of the primary lining layer 1 with a stud or the like. The water-stop sheet 4 is a laminated sheet in which a synthetic resin sheet layer 17 and a nonwoven fabric sheet layer 18 are overlapped and bonded in place with an appropriate adhesive such as hot melt. The nonwoven sheet layer serves as a water guide, and the synthetic resin sheet layer serves as a water stop. Next, the water leakage prevention sheet 5 is covered so as to cover the water guide 2. At this time, the water leakage prevention sheet 5 is arranged so that the upper end thereof overlaps the lower end of the water stopping sheet 4 and the lower end thereof reaches the inverting portion. The overlapping portion of the water stoppage sheet 4 and the water leakage prevention sheet 5 is watertightly connected 7 by welding means such as heat welding. In addition, the lower end 9 of the water leakage prevention sheet 5 is fixed to the primary lining layer 1 with a driving tack 25. At the time of this driving, the driving may be performed via the flat bar 26 as necessary. The water leakage prevention sheet 5 is a synthetic resin sheet, and may be the same as, for example, the synthetic resin sheet layer 17 of the water stop sheet 4. In addition, the water leakage prevention sheet 5 is sometimes made of a water-permeable sheet 20 of the water guide 2 with a hot melt adhesive or the like.
May be adhered to. After that, concrete is cast and the invert 11 is provided. At this time, the portion fixed with the rivet 25 at the lower end of the water leakage prevention sheet 5 is the invert 11
To be buried in. Reference numeral 27 denotes a drain outlet for extracting water collected in the water guide 2. The drain outlet is connected to a drain pipe 13. In the subsequent steps, the same steps as described above are performed to complete the tunnel. FIG.
Although only one side of the tunnel has been described, the other side is treated similarly.
【００１２】上記の態様では、誘水体２を配設し、その
上を漏水防止シート５で覆う工程を行なうが、この誘水
体２と漏水防止シート５とを接合一体化して用いること
ができる。図３はこの態様の施工過程を示す部分拡大断
面図である。この場合は、一次覆工層１の表面に、トン
ネルの天井部分及び側部の誘水体２の設置予定部上方ま
で止水シート４を張り、全面にわたって所々を打鋲し一
次覆工層１の表面に固定する。次いで、誘水体２に漏水
防止シート５を接合一体化したものを、一次覆工層１の
上に、トンネルの下方部の両側に長さ方向に沿って配置
する。このとき、漏水防止シートを表側とし、その上端
部が止水シート４の下端部と重なるように、またその下
端部がインバート部に達するように配置する。止水シー
ト４と漏水防止シート５の重なった部分を熱溶着等の溶
着手段によって水密接続７する。また漏水防止シート５
の下端部９は打鋲２５によって一次覆工層１に固定す
る。次いで、インバート１１、一次覆工層１２を設け
る。これら以降の施工は、上記の態様で述べたと同じに
行なって、トンネルを完成する。図３は、トンネルの片
側のみについて説明したが、他の側も同様に処置する。In the above embodiment, the step of arranging the water guide 2 and covering the water guide 2 with the water leakage prevention sheet 5 is performed. However, the water guide 2 and the water leakage prevention sheet 5 can be joined together and used. FIG. 3 is a partially enlarged sectional view showing the construction process of this embodiment. In this case, the waterproof sheet 4 is stretched on the surface of the primary lining layer 1 up to the ceiling portion and the side of the tunnel above the portion where the water guide 2 is to be installed. Fix to the surface. Next, the water guide 2 joined with the water leakage prevention sheet 5 is disposed on the primary lining layer 1 on both sides of the lower part of the tunnel along the length direction. At this time, the water leakage prevention sheet is placed on the front side, and the upper end thereof is disposed so as to overlap the lower end of the water stop sheet 4 and the lower end thereof reaches the inverting portion. The overlapping portion of the water stoppage sheet 4 and the water leakage prevention sheet 5 is watertightly connected 7 by welding means such as heat welding. Water leakage prevention sheet 5
The lower end 9 is fixed to the primary lining layer 1 with a driving pin 25. Next, an invert 11 and a primary lining layer 12 are provided. These subsequent constructions are performed in the same manner as described in the above embodiment to complete the tunnel. Although FIG. 3 describes only one side of the tunnel, the other side is treated similarly.
【００１３】図４は、誘水体２と漏水防止シート５とを
接合一体化させる例を示したものである。図４のａ図
は、合成樹脂製の漏水防止シート５に、１枚の通水シー
ト２１を用いて３本の通水管１９を一体に結合させた例
である。２２’は通水シート２１と漏水防止シート５と
の接着部である。この接着は、通水シート２１と漏水防
止シート５との接触箇所を必要個所ホットメルト接着剤
などで接着させて行なう。図４のｂ図は、２枚の通水シ
ート２０、２１を用いて通水管１９を包み込み、その平
坦な通水シート２０側に漏水防止シート５を接着２２’
させたものである。２２は通水シート２０と通水シート
２１の接着部である。通水シート２０側に漏水防止シー
ト５を接着させるには所々をホットメルト接着剤などで
接着させて遂行する。図４のｃ図も、２枚の通水シート
２０、２１を用いて通水管１９を包み込み、その一方の
側の通水シート２０に漏水防止シート５を接着２２’さ
せたものである。２２は通水シート２０と通水シート２
１の接着部である。通水シート２０側に漏水防止シート
５の接着させるには、接触箇所をホットメルト接着剤な
どで接着させて行なう。上記の接着部２２は縫着で構成
してもよい。FIG. 4 shows an example in which the water guide 2 and the water leakage prevention sheet 5 are joined and integrated. FIG. 4A is an example in which three water pipes 19 are integrally connected to the water leakage prevention sheet 5 made of a synthetic resin using one water sheet 21. Reference numeral 22 'denotes an adhesive portion between the water passage sheet 21 and the water leakage prevention sheet 5. This bonding is performed by bonding the contact portion between the water passage sheet 21 and the water leakage prevention sheet 5 with a hot melt adhesive or the like at a necessary portion. In FIG. 4B, the water pipe 19 is wrapped using two water sheets 20 and 21, and the water leakage prevention sheet 5 is bonded to the flat water sheet 20 side 22 '.
It was made. Reference numeral 22 denotes an adhesive portion between the water passage sheet 20 and the water passage sheet 21. In order to adhere the water leakage prevention sheet 5 to the water passage sheet 20 side, it is performed by adhering some parts with a hot melt adhesive or the like. FIG. 4C also shows a case where the water pipe 19 is wrapped using two water passage sheets 20 and 21, and the water leakage prevention sheet 5 is bonded 22 'to the water passage sheet 20 on one side. 22 is a water passage sheet 20 and a water passage sheet 2
1 is an adhesive part. In order to adhere the water leakage prevention sheet 5 to the water passing sheet 20 side, the contact portion is adhered with a hot melt adhesive or the like. The above-mentioned bonding portion 22 may be formed by sewing.
【００１４】[0014]
【発明の効果】従来のトンネル施工法によると、工事中
に、止水シートの下端部に溜った水が二次覆工層とイン
バートの境目から滲み出し、この滲み出た水がインバー
トの上面に溜まり工事作業環境を悪くしていたが、本発
明のトンネル施工法によると、止水シートの下端部に溜
った水が二次覆工層とインバートの境目から滲み出すこ
とがなく、そのため工事作業環境が良くなる。According to the conventional tunnel construction method, during construction, water accumulated at the lower end of the waterproof sheet oozes from the boundary between the secondary lining layer and the invert, and the ooze water flows to the upper surface of the invert. However, according to the tunnel construction method of the present invention, water accumulated at the lower end of the waterproof sheet does not seep out from the boundary between the secondary lining layer and the invert. Work environment is improved.
【図１】本発明のトンネル施工過程を示す断面図FIG. 1 is a sectional view showing a tunnel construction process of the present invention.
【図２】本発明のトンネル施工過程の一例を示す部分拡
大断面図FIG. 2 is a partially enlarged sectional view showing an example of a tunnel construction process of the present invention.
【図３】本発明のトンネル施工過程の他の例を示す部分
拡大断面図FIG. 3 is a partially enlarged sectional view showing another example of the tunnel construction process of the present invention.
【図４】本発明で用いる誘水体と漏水防止シートとを一
体化した例FIG. 4 shows an example in which a water guide and a water leakage prevention sheet used in the present invention are integrated.
【図５】従来のトンネル施工過程を示す断面図FIG. 5 is a sectional view showing a conventional tunnel construction process.
１ 一次覆工層、２，３ 誘水体、４ 止水シート、
５，６ 漏水防止シート、７，８ 水密接続部、１１
インバート、１２ 二次覆工層、１３，１４ 排水用配
管、１５ 排水管、１６ 路面形成用コンクリート、１
９ 通水管、２０，２１ 通水シート1 Primary lining layer, 2 and 3 water-inducing body, 4 waterproof sheet,
5, 6 water leakage prevention sheet, 7, 8 watertight connection, 11
Invert, 12 Secondary lining layer, 13, 14 Drainage pipe, 15 Drainage pipe, 16 Concrete for road surface formation, 1
9 Water pipes, 20, 21 Water sheet
Claims (2)
程、（２）トンネル内壁の表面に、底部を除いてコンク
リートを吹き付けて一次覆工層１を形成する工程、
（３）トンネル内壁の両側下方部にトンネルの長さ方向
に沿って誘水体２，３を配設する工程、（４）一次覆工
層１の表面に、天井部から両側部の誘水体２，３設置部
分のやや上方まで覆う止水シート４を張り、打鋲などに
より固定する工程、（５）誘水体２，３設置部を覆う漏
水防止シート５，６を張り、その上端部を止水シート４
に水密接続７，８する工程、（６）トンネルの底部に、
漏水防止シート５，６の下部端部９，１０を埋め込むよ
うに一定の厚さにコンクリートを打設してインバート１
１を設ける工程、（７）止水シート４及び漏水防止シー
ト５，６の表面にコンクリートを打設して二次覆工層１
２を形成する工程、（８）誘水体２，３に排水用配管１
３、１４をそれぞれ接続する工程、を行なうことを特徴
とするトンネルの施工法。(1) a step of piercing a tunnel having a substantially circular cross section; (2) a step of forming a primary lining layer 1 by spraying concrete on a surface of an inner wall of the tunnel except for a bottom portion;
(3) arranging the water guides 2 and 3 along the length direction of the tunnel below both sides of the inner wall of the tunnel, and (4) water guides 2 on the surface of the primary lining layer 1 from the ceiling to both sides. (3) A step of stretching the water-stop sheet 4 covering slightly above the installation part and fixing it with a rivet, etc. (5) Stretching the water-leak prevention sheets 5 and 6 covering the installation part of the water guides 2 and 3 and stopping the upper end thereof. Water sheet 4
(6) At the bottom of the tunnel,
Concrete is cast to a constant thickness so as to embed the lower ends 9 and 10 of the water leakage prevention sheets 5 and 6, and the invert 1
(7) A step of providing concrete on the surface of the water-stop sheet 4 and the water-leakage prevention sheets 5 and 6 to form the secondary lining layer 1
Step (2), (8) Drainage pipe 1 for water induction bodies 2 and 3
3. A method for constructing a tunnel, comprising the steps of connecting 3 and 14 respectively.
程、（２）トンネル内壁の表面に、底部を除いてコンク
リートを吹き付けて一次覆工層１を形成する工程、
（３）一次覆工層１の表面に、天井部から両側部の誘水
体２，３設置予定部のやや上方まで覆う止水シート４を
張り、打鋲などにより固定する工程、（４）トンネル内
壁の両側下方部にトンネルの長さ方向に沿って、表側部
にそれぞれ漏水防止シート５，６を接合した誘水体２，
３を配設し、その漏水防止シート５，６の上端部を止水
シート４に水密接続７，８する工程、（５）トンネルの
底部に、漏水防止シート５，６の下部端部９，１０を埋
め込むように一定の厚さにコンクリートを打設してイン
バート１１を設ける工程、（６）止水シート４及び漏水
防止シート５，６の表面にコンクリートを打設して二次
覆工層１２を形成する工程、（７）誘水体２，３に排水
用配管１３、１４をそれぞれ接続する工程、を行なうこ
とを特徴とするトンネルの施工法。(2) a step of drilling a tunnel having a substantially circular cross section; (2) a step of forming a primary lining layer 1 by spraying concrete on the surface of the inner wall of the tunnel except for a bottom portion;
(3) A step of stretching a water-stop sheet 4 covering the surface of the primary lining layer 1 from the ceiling to slightly above the water guides 2 and 3 to be installed on both sides, and fixing the sheet with a rivet, etc. (4) Tunnel A water induction body 2 having water leakage prevention sheets 5 and 6 joined to the front side along the length direction of the tunnel at the lower part on both sides of the inner wall, respectively.
A step of arranging the upper end portions of the water leakage prevention sheets 5 and 6 to the water stop sheet 4 in a watertight manner 7 and 8; (5) At the bottom of the tunnel, the lower end portions 9 and A step of casting concrete to a fixed thickness so as to embed 10 and providing an invert 11; (6) casting concrete on the surfaces of the water-stop sheet 4 and the water leakage prevention sheets 5 and 6 to form a secondary lining layer 12. A method for constructing a tunnel, comprising: performing a step of forming 12; and (7) a step of connecting drainage pipes 13 and 14 to the water guides 2 and 3, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10313671A JP2000145392A (en) | 1998-11-04 | 1998-11-04 | Tunnel execution method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10313671A JP2000145392A (en) | 1998-11-04 | 1998-11-04 | Tunnel execution method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000145392A true JP2000145392A (en) | 2000-05-26 |
Family
ID=18044117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10313671A Pending JP2000145392A (en) | 1998-11-04 | 1998-11-04 | Tunnel execution method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000145392A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030095129A (en) * | 2002-06-11 | 2003-12-18 | 김용석 | Tunnel drain |
| EP1514998A1 (en) * | 2003-09-15 | 2005-03-16 | Valplast AG | Tunnel drainage construction |
| JP2010101062A (en) * | 2008-10-23 | 2010-05-06 | Ohbayashi Corp | Drainage structure of underground water, and construction method for tunnel equipped with the drainage structure |
| CN103061789A (en) * | 2013-01-28 | 2013-04-24 | 中铁二院工程集团有限责任公司 | Sectionalized waterproof structure for high-water-pressure tunnels |
| JP2013096071A (en) * | 2011-10-28 | 2013-05-20 | Tokyo Printing Ink Mfg Co Ltd | Structure sheet for waste water |
| CN103670446A (en) * | 2013-12-13 | 2014-03-26 | 中铁二十三局集团有限公司 | Method for constructing circular diversion tunnel 2/3 circular concrete lining |
| CN106224001A (en) * | 2016-09-21 | 2016-12-14 | 中国水利水电第十四工程局有限公司 | Special protection device and preparation method is encircleed at the bottom of a kind of big cross section circular tunnel flow-passing surface |
| CN106437784A (en) * | 2016-10-11 | 2017-02-22 | 北京交通大学 | Dislocation-resistant combined tunnel support structure for passing through active broken course |
| CN107916945A (en) * | 2017-12-07 | 2018-04-17 | 中铁岩锋成都科技有限公司 | Using the waterproof spray-up structure and its construction method of impervious gunite concrete |
| CN111719344A (en) * | 2020-06-30 | 2020-09-29 | 南阳理工学院 | Ballast bed water-proof and drainage structure |
| CN112431615A (en) * | 2020-11-27 | 2021-03-02 | 中铁四局集团有限公司 | Permanent single-layer lining drainage method for underground tank room of hyperboloid dome |
-
1998
- 1998-11-04 JP JP10313671A patent/JP2000145392A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030095129A (en) * | 2002-06-11 | 2003-12-18 | 김용석 | Tunnel drain |
| EP1514998A1 (en) * | 2003-09-15 | 2005-03-16 | Valplast AG | Tunnel drainage construction |
| JP2010101062A (en) * | 2008-10-23 | 2010-05-06 | Ohbayashi Corp | Drainage structure of underground water, and construction method for tunnel equipped with the drainage structure |
| JP2013096071A (en) * | 2011-10-28 | 2013-05-20 | Tokyo Printing Ink Mfg Co Ltd | Structure sheet for waste water |
| CN103061789A (en) * | 2013-01-28 | 2013-04-24 | 中铁二院工程集团有限责任公司 | Sectionalized waterproof structure for high-water-pressure tunnels |
| CN103670446A (en) * | 2013-12-13 | 2014-03-26 | 中铁二十三局集团有限公司 | Method for constructing circular diversion tunnel 2/3 circular concrete lining |
| CN106224001A (en) * | 2016-09-21 | 2016-12-14 | 中国水利水电第十四工程局有限公司 | Special protection device and preparation method is encircleed at the bottom of a kind of big cross section circular tunnel flow-passing surface |
| CN106437784A (en) * | 2016-10-11 | 2017-02-22 | 北京交通大学 | Dislocation-resistant combined tunnel support structure for passing through active broken course |
| CN107916945A (en) * | 2017-12-07 | 2018-04-17 | 中铁岩锋成都科技有限公司 | Using the waterproof spray-up structure and its construction method of impervious gunite concrete |
| CN111719344A (en) * | 2020-06-30 | 2020-09-29 | 南阳理工学院 | Ballast bed water-proof and drainage structure |
| CN112431615A (en) * | 2020-11-27 | 2021-03-02 | 中铁四局集团有限公司 | Permanent single-layer lining drainage method for underground tank room of hyperboloid dome |
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