JP2006200141A - Method and structure for treatment of water inflow in tunnel - Google Patents

Method and structure for treatment of water inflow in tunnel Download PDF

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JP2006200141A
JP2006200141A JP2005010422A JP2005010422A JP2006200141A JP 2006200141 A JP2006200141 A JP 2006200141A JP 2005010422 A JP2005010422 A JP 2005010422A JP 2005010422 A JP2005010422 A JP 2005010422A JP 2006200141 A JP2006200141 A JP 2006200141A
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tunnel
primary lining
central drainage
spring water
drainage
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Toshiyuki Tanaka
俊行 田中
Katsumi Fukuda
勝美 福田
Katsu Toida
克 戸井田
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Kajima Corp
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Kajima Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a structure for the treatment of water inflow in a tunnel, which enable the water inflow from the side of natural ground to be rapidly discharged to a surface by collecting the water inflow from the side of natural ground over a wide range by a relatively simple structure, in the drainage type tunnel. <P>SOLUTION: After the full-cross section excavation of the tunnel 1 is performed by a mountain tunnel construction method, sprayed concrete (primary lining) 2 is constructed on the circumference of the excavated surface 1a of the tunnel 1; a central drain pipe (for central drainage work) 3 is installed along the axial direction of the tunnel in a central position on the sprayed concrete 2 of the invert section of the bottom of the tunnel; a waterproof sheet (for full waterproof work) 4 is laid over the circumference of the inner surface of the sprayed concrete 2; the drain pipe 3 is positioned under the waterproof sheet 4; and the water inflow from the side of the natural ground is guided into the drain pipe 3 via the primary lining 2 by the waterproof sheet 4, and discharged to the surface from the drain pipe 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、トンネル、あるいは地下空洞、余裕深度処分・TRU(超ウラン元素)廃棄物などの放射性廃棄物処分施設における湧水処理方法および湧水処理構造に関するものである。   The present invention relates to a spring treatment method and a spring treatment structure in a radioactive waste disposal facility such as a tunnel, underground cavity, marginal depth disposal / TRU (super uranium element) waste, or the like.

現行のトンネルの湧水処理方法は、坑内の漏水を防止するために、一般的に、一次覆工(吹付けコンクリート)の内面と二次覆工の背面との間に、防水工として防水シートを敷設し、二次覆工背面の湧水を集水して、インバート部の横断排水管を介してトンネル軸方向に沿う中央排水工に導水し、中央排水工を通して自然流下により坑外に排出する排出型を採用している。湧水を速やかに排水することで、二次覆工背面の水圧を低減させて、二次覆工のひび割れ発生を防止している。   In order to prevent water leakage in the mine, the current tunnel spring water treatment method is generally used as a waterproof sheet between the inner surface of the primary lining (spray concrete) and the rear surface of the secondary lining. Laying the ground, collecting the spring water on the back of the secondary lining, guiding the water to the central drainage along the tunnel axis through the transverse drainage pipe in the invert part, and discharging it to the outside of the mine by natural flow through the central drainage The exhaust type is used. By quickly draining the spring water, the water pressure on the back of the secondary lining is reduced, preventing the secondary lining from cracking.

また、本発明に関連する先行技術文献として特許文献1〜10がある。特許文献1の発明は、一次覆工と二次覆工との間に防水シート等の防水層を介在させたトンネル止水構造において、防水層と二次覆工とを互いに接着したものである。特許文献2の発明は、導水材が直接貼り付けられたトンネル掘削内壁面に吹付けコンクリート層を形成したものである。特許文献3の発明は、一次覆工コンクリートに張設される不透水性シートと透水性シートを積層してなる防水シートに裏面排水材を取付けたものである。特許文献4の発明は、一次覆工コンクリートの内面に防水シートを敷設し、この防水シートの内面側に二次覆工コンクリートを打設し、この打設時に排気注入ホースによりウォーターバリアのリブ間のエアを抜き、注入材充填孔により二次覆工コンクリートと防水シートとの間の隙間に注入材を充填するものである。   Further, there are Patent Documents 1 to 10 as prior art documents related to the present invention. The invention of Patent Document 1 is a tunnel waterproof structure in which a waterproof layer such as a waterproof sheet is interposed between the primary lining and the secondary lining, and the waterproof layer and the secondary lining are bonded to each other. . In the invention of Patent Document 2, a sprayed concrete layer is formed on an inner wall surface of tunnel excavation to which a water guide material is directly attached. In the invention of Patent Document 3, the back surface drainage material is attached to a waterproof sheet formed by laminating a water-impermeable sheet and a water-permeable sheet stretched on the primary lining concrete. In the invention of Patent Document 4, a waterproof sheet is laid on the inner surface of the primary lining concrete, and the secondary lining concrete is laid on the inner surface side of the waterproof sheet. The air is discharged, and the gap between the secondary lining concrete and the waterproof sheet is filled with the injection material through the injection material filling hole.

特許文献5の発明は、シールドトンネルの一次覆工であるセグメントの内面を合成樹脂により被覆し、合成樹脂とセグメントとの間にストリング状のドレーン材を設けたものである。特許文献6の発明は、一次覆工と止水シートとの間に設けられる排水用部材であり、目の細かい不織布が目の荒い立体状編物の片面側にニードルパンチで一体化されたものである。引用文献7の発明は、シールドトンネルのセグメント継ぎ手目地の内表面に帯状の導水材を張り付けて連続導水路を形成し、この一次覆工内表面に樹脂吹付層を塗布施工するものである。特許文献8の発明は、トンネル内壁面に吹付けコンクリートにより一次覆工を形成し、その内面に繊維材料を含むと透水性コンクリートを吹付けて透水層を形成し、その内面に防水材料を吹付けて遮水層を積層形成するものである。特許文献9の発明は、トンネルの一次覆工の表面に設けられた防水シートの下部に折り返し状の流末処理用シートを取付け、これにジョイントボックスを取付け、このボックスに横断排水材を連結したものである。特許文献10の発明は、通水層と不透水層を有するシートを地山に展張し、通水層に冷却水を通しながら覆工コンクリートを形成するものである。
特開2004−183338号公報 特開2003−262097号公報 特開2002−129898号公報 特開2000−337096号公報 特開平11−173093号公報 特開平10−196296号公報 特開平9−72197号公報 特開平9−4393号公報 特開平7−189597号公報 特開平5−195696号公報
In the invention of Patent Document 5, the inner surface of a segment, which is the primary lining of a shield tunnel, is covered with a synthetic resin, and a string-shaped drain material is provided between the synthetic resin and the segment. The invention of Patent Document 6 is a member for drainage provided between a primary lining and a waterproof sheet, and a fine non-woven fabric is integrated with one side of a three-dimensional knitted fabric with rough eyes by a needle punch. is there. In the invention of Cited Document 7, a continuous water conduit is formed by sticking a band-shaped water guide material on the inner surface of the segment joint joint of the shield tunnel, and a resin spray layer is applied to the inner surface of the primary lining. In the invention of Patent Document 8, a primary lining is formed with spray concrete on the inner wall surface of a tunnel, and if a fiber material is included on the inner surface thereof, a water permeable concrete is sprayed to form a water permeable layer, and a waterproof material is sprayed on the inner surface. In addition, a water shielding layer is laminated and formed. In the invention of Patent Document 9, a folded end sheet is attached to the lower part of a waterproof sheet provided on the surface of the primary lining of the tunnel, a joint box is attached thereto, and a transverse drainage material is connected to this box. Is. In the invention of Patent Document 10, a sheet having a water-permeable layer and a water-impermeable layer is spread on a natural ground, and lining concrete is formed while passing cooling water through the water-permeable layer.
JP 2004-183338 A JP 2003-262097 A JP 2002-129898 A JP 2000-337096 A Japanese Patent Laid-Open No. 11-173093 JP-A-10-196296 JP-A-9-72197 Japanese Patent Laid-Open No. 9-4393 Japanese Unexamined Patent Publication No. 7-189597 JP-A-5-195696

前述した従来の排水型トンネルの場合、中央排水工をインバートの下部に設置すると、地山を傷めて、将来、地下水によるインバートや覆工の背面の洗掘による空洞化や周辺地山の不安定化を生じる恐れがある。また下面からの湧水による膨圧時に中央排水工が破損する可能性がある。   In the case of the conventional drainage tunnel mentioned above, if the central drainage is installed at the bottom of the invert, the ground will be damaged, and in the future, the inversion by groundwater and the scouring of the back of the lining will cause cavitation and instability of the surrounding ground There is a risk that In addition, the central drainage may be damaged at the time of expansion pressure by spring water from the bottom.

また、従来の排水型トンネルの場合、中央排水工をインバートの上部に設置すると、下面からの湧水を排水することが困難である。そのため、インバート下面に大きな水圧が外力として加わり、覆工やインバートのひび割れの発生原因となり、トンネル本体へ悪影響を及ぼす可能性がある。   In the case of a conventional drainage type tunnel, if a central drainage is installed on the upper part of the invert, it is difficult to drain the spring water from the lower surface. Therefore, a large water pressure is applied to the lower surface of the invert as an external force, which may cause lining and cracking of the invert, and may adversely affect the tunnel body.

本発明は、このような課題を解決すべくなされたもので、その目的は、排水型トンネルにおいて、比較的簡易な構造により地山側からの湧水を広範囲にわたって集水し、坑外へ速やかに排出することができるトンネルの湧水処理方法および湧水処理構造を提供することにある。   The present invention has been made to solve such problems. The purpose of the present invention is to collect a large amount of spring water from the natural ground side in a drainage type tunnel with a relatively simple structure, and promptly move it outside the mine. The object is to provide a spring water treatment method and a spring water treatment structure for a tunnel that can be discharged.

本発明の請求項1に係る発明は、トンネル掘削後の地山側からの湧水を坑外へ排出するトンネルの湧水処理方法であり、トンネル全断面掘削後にトンネル掘削面の全周に一次覆工(吹付けコンクリート等)を施工し、トンネル底部における一次覆工の上に中央排水工(中央排水管など)を設置し、一次覆工の内面に全周にわたって全面防水工(防水シート等)を敷設し、中央排水工は全面防水工の下に位置するようにし、地山側からの湧水を全面防水工により一次覆工を介して中央排水工に導水し、中央排水工から坑外へ排出することを特徴とするトンネルの湧水処理方法である。トンネル底部の中央排水工および防水工は下部埋め戻し工で覆うのが好ましい。必要に応じて、下部埋め戻し工より上の部分の防水工は二次覆工で覆う。   The invention according to claim 1 of the present invention is a tunnel spring treatment method that discharges spring water from the natural ground side after tunnel excavation to the outside of the tunnel, and first covers the entire circumference of the tunnel excavation surface after excavating the entire section of the tunnel. Construction (sprayed concrete, etc.), a central drainage (central drainage pipe, etc.) is installed on the primary lining at the bottom of the tunnel, and the entire inner periphery of the primary lining is waterproofed (waterproof sheets, etc.) The central drainage is located under the entire waterproofing work, and the spring water from the natural ground is led to the central drainage through the primary lining by the full waterproofing work, and from the central drainage work to the outside of the mine. A method for treating spring water in a tunnel characterized by discharging. It is preferable to cover the central drainage work and waterproof work at the bottom of the tunnel with a lower backfilling work. If necessary, the waterproof work above the lower backfill is covered with a secondary lining.

本発明の請求項2に係る発明は、請求項1に記載のトンネルの湧水処理方法において、中央排水工は、多数の孔が穿設された有孔管(ヒューム管や高密度ポリエチレン管など)と、この有孔管の周囲に配置される砕石と、この砕石を包含する吸出し防止材から構成されていることを特徴とするトンネルの湧水処理方法である。   The invention according to claim 2 of the present invention is the tunnel spring treatment method according to claim 1, wherein the central drainer is a perforated pipe (such as a fume pipe or a high-density polyethylene pipe) having a large number of holes. ), A crushed stone arranged around the perforated pipe, and a suction prevention material including the crushed stone.

本発明の請求項3に係る発明は、トンネル掘削後の地山側からの湧水を坑外へ排出するためのトンネルの湧水処理構造であり、トンネル掘削面の全周に施工される一次覆工(吹付けコンクリート等)と、トンネル底部における一次覆工の上に設置される中央排水工(中央排水管など)と、一次覆工の内面に全周にわたって敷設され、中央排水工がその下に配置される全面防水工(防水シート等)と、トンネル底部における防水工の上に施工される下部埋め戻し工(埋め戻し材やコンクリートなど)から構成されていることを特徴とするトンネルの湧水処理構造である。必要に応じて、下部埋め戻し工より上の部分の防水工は二次覆工で覆う。   The invention according to claim 3 of the present invention is a spring water treatment structure for a tunnel for discharging spring water from a natural ground side after tunnel excavation to the outside of the mine, and is a primary cover constructed on the entire circumference of the tunnel excavation surface. Laying on the inner surface of the primary lining, and the central drainage underneath the center drainage (central drainage pipe, etc.) installed on the primary lining at the bottom of the tunnel A tunnel spring characterized by being composed of a full-scale waterproofing (waterproofing sheet, etc.) and a lower backfilling (backfilling material, concrete, etc.) constructed on top of the waterproofing at the bottom of the tunnel Water treatment structure. If necessary, the waterproof work above the lower backfill is covered with a secondary lining.

本発明の請求項4に係る発明は、請求項3に記載のトンネルの湧水処理構造において、中央排水工は、多数の孔が穿設された有孔管(ヒューム管や高密度ポリエチレン管など)と、この有孔管の周囲に配置される砕石と、この砕石を包含する吸出し防止材から構成されていることを特徴とするトンネルの湧水処理構造である。   The invention according to claim 4 of the present invention is the tunnel spring treatment structure according to claim 3, wherein the central drainer is a perforated pipe (such as a fume pipe or a high-density polyethylene pipe) having a large number of holes. ), And a crushed stone disposed around the perforated pipe, and a suction prevention material including the crushed stone.

本発明において、トンネルには、地下空洞、余裕深度処分埋設施設・TRU廃棄物処分施設などの放射性廃棄物処分施設の処分坑道などを含むものであり、この場合、二次覆工を施工しない場合も考えられる。 以上のような本発明において、従来の中央排水工をインバートの下部に設置する場合に対して、インバート部の一次覆工の上に中央排水工を設置することで、地山を傷める心配が無くなり、将来の地下水によるインバートや覆工の背面の洗掘による空洞化や周辺地山の不安定化を防止することができる。また、下面からの湧水による膨圧時に中央排水工が破損する可能性も無くなる。   In the present invention, the tunnel includes an underground cavity, a disposal tunnel of a radioactive waste disposal facility such as a surplus depth disposal burial facility, a TRU waste disposal facility, etc. In this case, a secondary lining is not constructed. Is also possible. In the present invention as described above, in contrast to the case where the conventional central drainage is installed at the lower part of the invert, by installing the central drainage on the primary lining of the invert part, there is no fear of damaging the natural ground. In the future, it is possible to prevent inversion due to groundwater and scouring of the backside of the lining and destabilization of surrounding ground. Moreover, there is no possibility of the central drainage being damaged at the time of expansion pressure by spring water from the lower surface.

従来の中央排水工をインバートの上部に設置する場合に対して、防水工を全周にわたって中央排水工を覆うように設置することで、下面からの湧水を一次覆工(吹付けコンクリート)を介して中央排水工に導水して排水することができ、インバート下面に大きな水圧が外力として加わり、覆工やインバートにひび割れが発生するのを防止することができる。また、横断排水管を省略することができる。   In contrast to the case where a conventional central drainage is installed at the top of the invert, a waterproofing work is installed over the entire circumference to cover the central drainage so that the spring water from the lower surface can be used as the primary lining (sprayed concrete). Thus, the water can be led to the central drainage and drained, and a large water pressure is applied to the bottom surface of the invert as an external force, thereby preventing the lining and invert from being cracked. Moreover, the cross drainage pipe can be omitted.

本発明によれば、次のような効果が得られる。
(1) トンネル底部の一次覆工の上に中央排水工を設置し、一次覆工の内面に全周にわたって中央排水工を覆うように全面防水工を施工するようにしたため、地山側からの湧水を全面防水工により一次覆工を介して中央排水工に導水し、中央排水工から坑外へ排出することができ、地山を傷めることが無く、湧水による膨圧により中央排水工が破損することもなく、また広範囲にわたって湧水を集水することが可能となり、空洞へかかる水圧を低減させて覆工やインバートのひび割れの発生を防ぐことができ、トンネルや施設の安全性や品質の向上につながる。
(2) 中央排水工と全面防水工とからなる比較的簡易な構造であり、従来の横断排水管を省略することができ、作業性の向上やコストの低減等を図ることができる。
According to the present invention, the following effects can be obtained.
(1) Since a central drainage was installed on the primary lining at the bottom of the tunnel, and the entire drainage was constructed on the inner surface of the primary lining to cover the entire central drainage, Water is led to the central drainage through the primary lining by the overall waterproofing work, and can be discharged from the central drainage to the outside of the mine. It is possible to collect spring water over a wide area without breakage, reduce the water pressure applied to the cavity and prevent cracking of lining and invert, and safety and quality of tunnels and facilities Leads to improvement.
(2) It has a relatively simple structure consisting of a central drainage work and a full waterproof work, so that the conventional cross drainage pipe can be omitted, and workability can be improved and costs can be reduced.

以下、本発明を図示する実施の形態に基づいて説明する。この実施形態は、余裕深度処分埋設施設の処分坑道の湧水処理に適用したものである。図1、図2は、本発明の湧水処理構造の一例を示す断面図、部分拡大断面図である。   Hereinafter, the present invention will be described based on the illustrated embodiment. This embodiment is applied to the spring water treatment of the disposal tunnel of the marginal depth disposal buried facility. 1 and 2 are a sectional view and a partially enlarged sectional view showing an example of the spring treatment structure of the present invention.

図1に示すように、山岳トンネル工法等によるトンネル1の全断面掘削後、トンネル掘削面1aの全周に吹付けコンクリート(一次覆工)2を施工し、トンネル底部のインバート部における吹付けコンクリート2の上の中央位置に中央排水管(中央排水工)3をトンネル軸方向に沿って設置し、吹付けコンクリート2の内面に全周にわたって全面防水シート(全面防水工)4を敷設し、中央排水管3は全面防水シート4の下に位置するようにする。   As shown in FIG. 1, after excavating the entire section of the tunnel 1 by a mountain tunnel method or the like, a shotcrete (primary lining) 2 is constructed on the entire circumference of the tunnel excavation surface 1a, and the shotcrete in the invert part at the bottom of the tunnel A central drain pipe (central drainage) 3 is installed along the tunnel axis direction at the center above 2 and a full waterproof sheet (full waterproof work) 4 is laid on the inner surface of shotcrete 2 over the entire circumference. The drain pipe 3 is positioned below the entire waterproof sheet 4.

防水シート4は、通常用いられる土木工事用シートであり、緩衝材と一体型のものを用いる。中央排水管3は、掘削後の湧水量から断面を決定し(例えば径300mm程度)、ヒューム管や高密度ポリエチレン管等からなる有孔管を用いる。この中央排水管3の周囲には砕石5を配置して有孔管の目詰まりを防止し、この砕石5は吸出し防止材6で包含し、土砂等の吸出しを防止する。   The waterproof sheet 4 is a civil engineering sheet that is normally used, and is one that is integrated with a cushioning material. The central drain pipe 3 determines a cross section from the amount of spring water after excavation (for example, a diameter of about 300 mm), and uses a perforated pipe made of a fume pipe, a high density polyethylene pipe, or the like. A crushed stone 5 is disposed around the central drainage pipe 3 to prevent clogging of the perforated pipe. The crushed stone 5 is included in a sucking prevention material 6 to prevent sucking of earth and sand.

中央排水管3および防水シート4の施工後、下部埋め戻し材によるインバート部7を施工し、インバート部以外の防水シート4の内面に二次覆工コンクリート8を打設する。地下空洞、余裕深度処分埋設施設・TRU廃棄物処分施設などの放射性廃棄物処分施設の場合、坑内は埋め戻されるため、二次覆工を施工しない場合も考えられる。従来の横断排水管は省略することができる。   After the construction of the central drainage pipe 3 and the waterproof sheet 4, the invert part 7 made of the lower backfill material is constructed, and the secondary lining concrete 8 is placed on the inner surface of the waterproof sheet 4 other than the invert part. In the case of radioactive waste disposal facilities such as underground cavities, marginal depth disposal burial facilities, and TRU waste disposal facilities, the pit is backfilled, so there may be cases where no secondary lining is applied. Conventional transverse drains can be omitted.

以上のように、一次覆工2の内面と二次覆工8の背面と間に防水シート4を全周にわたって敷設することで、二次覆工背面および下面からの広い範囲の湧水を集水して、中央排水管3を通して自然流下によって速やかに坑外へ排出することができる。   As described above, by laying the waterproof sheet 4 over the entire circumference between the inner surface of the primary lining 2 and the rear surface of the secondary lining 8, a wide range of spring water from the rear and lower surfaces of the secondary lining is collected. Water can be quickly discharged out of the mine through natural drainage through the central drain pipe 3.

インバート部の一次覆工2の上に中央排水管3を設置することで、地山を傷める心配が無くなり、将来の地下水によるインバートや覆工の背面の洗掘による空洞化や周辺地山の不安定化を防止することができる。また、下面からの湧水による膨圧時に中央排水管3が破損する可能性も無くなる。   By installing the central drainage pipe 3 on the primary lining 2 of the invert part, there is no fear of damaging the natural ground. Stabilization can be prevented. Further, there is no possibility of the central drainage pipe 3 being damaged at the time of expansion pressure due to spring water from the lower surface.

防水シート4を全周にわたって中央排水管3を覆うように設置することで、下面からの湧水を一次覆工(吹付けコンクリート)2を介して中央排水管3に導水して排水することができ、インバート下面に大きな水圧が外力として加わり、覆工やインバートにひび割れが発生するのを防止することができる。   By installing the waterproof sheet 4 so as to cover the central drainage pipe 3 over the entire circumference, the spring water from the lower surface can be led to the central drainage pipe 3 through the primary lining (sprayed concrete) 2 and drained. In addition, a large water pressure is applied as an external force to the bottom surface of the invert, and cracks can be prevented from occurring in the lining and invert.

本発明に係るトンネルの湧水処理構造の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of the spring water treatment structure of the tunnel which concerns on this invention. 図1のインバート部における部分拡大断面図である。It is a partial expanded sectional view in the invert part of FIG.

符号の説明Explanation of symbols

1…トンネル
1a…トンネル掘削面
2…吹付けコンクリート(一次覆工)
3…中央排水管(中央排水工)
4…全面防水シート(全面防水工)
5…砕石
6…吸出し防止材
7…下部埋め戻し材によるインバート部
8…二次覆工コンクリート(二次覆工)
DESCRIPTION OF SYMBOLS 1 ... Tunnel 1a ... Tunnel excavation surface 2 ... Shotcrete (primary lining)
3 ... Central drainage pipe (Central drainage work)
4 ... Fully waterproof sheet
5 ... Crushed stone 6 ... Anti-suction material 7 ... Inverted portion with lower backfill material 8 ... Secondary lining concrete (secondary lining)

Claims (4)

トンネル掘削後の地山側からの湧水を坑外へ排出するトンネルの湧水処理方法であり、トンネル全断面掘削後にトンネル掘削面の全周に一次覆工を施工し、トンネル底部における一次覆工の上に中央排水工を設置し、一次覆工の内面に全周にわたって全面防水工を敷設し、中央排水工は全面防水工の下に位置するようにし、地山側からの湧水を全面防水工により一次覆工を介して中央排水工に導水し、中央排水工から坑外へ排出することを特徴とするトンネルの湧水処理方法。   This is a tunnel spring treatment method that discharges spring water from the natural ground after tunnel excavation to the outside of the tunnel. After excavating the entire section of the tunnel, a primary lining is constructed around the tunnel excavation surface, and the primary lining at the bottom of the tunnel A central drainage is installed on the top, and a full waterproofing is laid on the inner surface of the primary lining. The central drainage is located under the full waterproofing, and the spring water from the natural mountain side is completely waterproofed. A method for treating spring water in a tunnel characterized in that water is led to a central drainage through a primary lining and then discharged from the central drainage. 請求項1に記載のトンネルの湧水処理方法において、中央排水工は、多数の孔が穿設された有孔管と、この有孔管の周囲に配置される砕石と、この砕石を包含する吸出し防止材から構成されていることを特徴とするトンネルの湧水処理方法。   2. The tunnel spring treatment method according to claim 1, wherein the central drainage includes a perforated pipe having a large number of holes, a crushed stone arranged around the perforated pipe, and the crushed stone. A method for treating spring water in a tunnel, characterized by comprising a material for preventing suction. トンネル掘削後の地山側からの湧水を坑外へ排出するためのトンネルの湧水処理構造であり、トンネル掘削面の全周に施工される一次覆工と、トンネル底部における一次覆工の上に設置される中央排水工と、一次覆工の内面に全周にわたって敷設され、中央排水工がその下に配置される全面防水工と、トンネル底部における防水工の上に施工される下部埋め戻し工から構成されていることを特徴とするトンネルの湧水処理構造。   This is a tunnel spring treatment structure for discharging spring water from the natural ground side after tunnel excavation to the outside of the mine, and the primary lining constructed around the tunnel excavation surface and the primary lining at the bottom of the tunnel Central drainage installed on the inner surface of the primary lining, the entire drainage laid on the inner surface of the primary lining, and the lower backfilling constructed on the waterproofing at the bottom of the tunnel A spring water treatment structure for tunnels, which is characterized by construction. 請求項3に記載のトンネルの湧水処理構造において、中央排水工は、多数の孔が穿設された有孔管と、この有孔管の周囲に配置される砕石と、この砕石を包含する吸出し防止材から構成されていることを特徴とするトンネルの湧水処理構造。   The spring water treatment structure for a tunnel according to claim 3, wherein the central drainage includes a perforated pipe having a large number of holes, a crushed stone arranged around the perforated pipe, and the crushed stone. A spring water treatment structure for tunnels, characterized in that it is composed of a material that prevents suction.
JP2005010422A 2005-01-18 2005-01-18 Method and structure for treatment of water inflow in tunnel Pending JP2006200141A (en)

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CN105545356A (en) * 2016-03-04 2016-05-04 中国五冶集团有限公司 Drainage treatment structure of concealed excavated tunnel base plate
CN105909308A (en) * 2016-05-12 2016-08-31 中国五冶集团有限公司 Subsurface tunnel drainage treatment method
CN107144490A (en) * 2017-07-03 2017-09-08 中南大学 Tunnel Second Lining pours monitoring system and monitoring method
CN107227974A (en) * 2017-06-20 2017-10-03 中铁十局集团第四工程有限公司 A kind of tunnel-liner discharge structure and water discharge method
CN108316952A (en) * 2018-04-09 2018-07-24 铁科创恒新材料科技有限公司 Extremely frigid zones tunnel insulation waterproof and water drainage system
CN108533316A (en) * 2018-05-07 2018-09-14 中铁工程设计咨询集团有限公司 A kind of full packet pressure release waterproof/drainage structure in tunnel
CN109113768A (en) * 2018-11-06 2019-01-01 中南大学 A kind of lining construction seam waterproof construction and waterproof method
CN110513130A (en) * 2019-09-27 2019-11-29 长安大学 A kind of tunnel waterproof and water drainage system
CN111058482A (en) * 2020-02-26 2020-04-24 福州市规划设计研究院 Construction method suitable for rapid precipitation of arch bottom of open-cut tunnel
JP6932283B1 (en) * 2021-05-11 2021-09-08 大栄工機株式会社 How to construct a tunnel invert

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545356A (en) * 2016-03-04 2016-05-04 中国五冶集团有限公司 Drainage treatment structure of concealed excavated tunnel base plate
CN105909308A (en) * 2016-05-12 2016-08-31 中国五冶集团有限公司 Subsurface tunnel drainage treatment method
CN107227974A (en) * 2017-06-20 2017-10-03 中铁十局集团第四工程有限公司 A kind of tunnel-liner discharge structure and water discharge method
CN107144490B (en) * 2017-07-03 2023-08-15 中南大学 Tunnel secondary lining pouring monitoring system and monitoring method
CN107144490A (en) * 2017-07-03 2017-09-08 中南大学 Tunnel Second Lining pours monitoring system and monitoring method
CN108316952A (en) * 2018-04-09 2018-07-24 铁科创恒新材料科技有限公司 Extremely frigid zones tunnel insulation waterproof and water drainage system
CN108316952B (en) * 2018-04-09 2024-04-09 中国铁道科学研究院集团有限公司铁道建筑研究所 Tunnel heat-preservation and drainage-prevention system in alpine region
CN108533316A (en) * 2018-05-07 2018-09-14 中铁工程设计咨询集团有限公司 A kind of full packet pressure release waterproof/drainage structure in tunnel
CN109113768A (en) * 2018-11-06 2019-01-01 中南大学 A kind of lining construction seam waterproof construction and waterproof method
CN110513130A (en) * 2019-09-27 2019-11-29 长安大学 A kind of tunnel waterproof and water drainage system
CN110513130B (en) * 2019-09-27 2024-05-28 长安大学 Tunnel waterproof and drainage system
CN111058482B (en) * 2020-02-26 2022-03-08 福州市规划设计研究院集团有限公司 Construction method suitable for rapid precipitation of arch bottom of open-cut tunnel
CN111058482A (en) * 2020-02-26 2020-04-24 福州市规划设计研究院 Construction method suitable for rapid precipitation of arch bottom of open-cut tunnel
JP6932283B1 (en) * 2021-05-11 2021-09-08 大栄工機株式会社 How to construct a tunnel invert

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