JP4705468B2 - Drainage pipe with deterrent function - Google Patents

Drainage pipe with deterrent function Download PDF

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JP4705468B2
JP4705468B2 JP2005372016A JP2005372016A JP4705468B2 JP 4705468 B2 JP4705468 B2 JP 4705468B2 JP 2005372016 A JP2005372016 A JP 2005372016A JP 2005372016 A JP2005372016 A JP 2005372016A JP 4705468 B2 JP4705468 B2 JP 4705468B2
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drainage pipe
pipe
tip
bag body
grout
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JP2007170115A (en
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宏治 竹家
真佐史 市川
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SE Corp
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本発明は、盛土や擁壁等の地滑り防止対策や、軟弱地盤の圧密促進若しくは宅地造成における軟弱地盤改良等に使用される、アンカー機能と集排水機能とを併せ持つ抑止機能付集排水パイプに関するものである。   The present invention relates to a drainage pipe with a deterrent function that has both an anchor function and a drainage function, which is used to prevent landslides such as embankments and retaining walls, to promote consolidation of soft ground or to improve soft ground in residential land development, etc. It is.

従来、地山や法面若しくは擁壁の崩落を防止するアンカー機能に、排水機能を併せ持つようにしたものが知られている(特許文献1参照)。これは、例えば、透水性外管内に間隙を介して不透水性内管を設け、該内管と上記間隙との連通部を有し、同連通部に上記外管と上記内管との集水継手を設けてなる多重管を、地山不安定部の地表面から地山安定部に向かって仰角に埋設したものである。
特開平06−88335号公報
2. Description of the Related Art Conventionally, an anchor function that prevents a natural mountain, a slope, or a retaining wall from collapsing is also known (see Patent Document 1). For example, a water-impermeable inner tube is provided in a water-permeable outer tube via a gap, and a communication portion between the inner tube and the gap is provided. The outer tube and the inner tube are collected in the communication portion. A multiple pipe provided with a water joint is embedded at an elevation angle from the ground surface of a natural ground unstable part toward the natural ground stable part.
Japanese Patent Laid-Open No. 06-88335

しかし、従来の抑止機能付集排水パイプでは、多重管でなりそのアンカー機能は専用のアンカー材があるわけではないので、大きな支持強度が発揮されるものではない。また、部品点数が多く、それを必要長さに順次組立ながら現地で削孔に埋設するので、必ずしも効率的な作業とはいえないという課題がある。
本発明に係る抑止機能付集排水パイプは、このような課題を解決するために提案されたものである。
However, the conventional collecting and drainage pipe with a deterrent function is a multiple pipe and the anchor function does not have a dedicated anchor material, so that a large support strength is not exhibited. Moreover, since there are many parts and it embeds in a drilling hole on the spot, assembling it to required length sequentially, there exists a subject that it cannot necessarily say that it is an efficient work.
The collection drainage pipe with a deterrent function according to the present invention has been proposed in order to solve such a problem.

本発明に係る抑止機能付集排水パイプの上記課題を解決して目的を達成するための要旨は、後端部が地表面側に先端部が地面内部に埋設される集排水パイプと、該集排水パイプの先端部に設けられグラウト材が注入されて定着部となる袋体と、前記集排水パイプと前記袋体との境目に配設されてグラウト材の前記集排水パイプ内部への侵入を阻止する仕切り部材と、前記集排水パイプの先端部に定着部を形成するためにグラウト材を注入するグラウト注入パイプと、
前記集排水パイプの内部に配設され該パイプの先端部側に形成される定着部に先端部が配設される引張材とを有してなり、前記グラウト注入パイプは、袋体を貫通して削孔の奥にパイプの先端部が至り、前記袋体を貫通する部分の途中に袋体用注入孔が別に設けられていて、定着部内において袋体の先に集排水パイプの先端部が配設され、グラウト注入パイプが当該集排水パイプの先端部の外側に配設され、引張材の先端部が当該集排水パイプの先端部の内部に配設されるとともに、この集排水パイプの先端部と当該引張材との間隙に硬化材が充填されていることである。
The gist for solving the above-mentioned problems of the collecting / draining pipe with a deterrent function according to the present invention is to collect the draining / piping pipe having a rear end portion embedded in the ground surface and a tip end portion embedded in the ground, and the collecting A grout material that is provided at the tip of the drainage pipe is infused with a grout material to become a fixing portion, and is disposed at the boundary between the drainage pipe and the bag body to prevent the grout material from entering the drainage pipe. A partition member for blocking, a grout injection pipe for injecting a grout material to form a fixing portion at the tip of the drainage pipe,
A fixing member disposed inside the drainage pipe and formed on the distal end side of the pipe, and a tension member having a distal end disposed thereon, and the grout injection pipe penetrates the bag body. The tip of the pipe reaches the back of the hole, and a bag body injection hole is separately provided in the middle of the portion penetrating the bag body, and the tip of the drainage pipe is located at the tip of the bag body in the fixing portion. The grout injection pipe is disposed outside the tip of the drainage pipe, the tip of the tensile material is disposed inside the tip of the drainage pipe, and the tip of the drainage pipe The gap between the portion and the tensile material is filled with the hardener.

前記集排水パイプの後端部に、グラウト材が充填されて受圧板の代わりとなる袋体が設けられていることを含むものである。 It includes that a bag body that is filled with a grout material and serves as a substitute for a pressure receiving plate is provided at the rear end portion of the drainage pipe.

本発明の抑止機能付集排水パイプによれば、地山の排水機能とアンカー機能とが発揮されるとともに、グラウト材の注入によって定着部を形成するので、施工が容易であり工数低減となる。また、定着部の袋体がグラウト材によって膨張し削孔の内壁に密着して、安定した定着部となる。
また、定着部を、削孔の空間部に直接に、グラウト材を注入して固化させることで形成し、定着部の付着強度を強化することもできる。この定着部をグラウト材で形成する際に、予め集排水パイプに硬化材を充填したものを球根部に挿入してグラウト材を注入すれば、グラウト材の使用量を軽減できて、工期も短縮されコスト低減となる。
また、抑止機能付集排水パイプの地表面側の後端部に袋体を設けることで、不安定部分を両端の袋体で挟み、地山の安定に寄与する。
According to the collecting / draining pipe with a deterring function of the present invention, the drainage function and the anchor function of the natural ground are exhibited, and the fixing portion is formed by injecting the grout material, so that the construction is easy and the man-hour is reduced. Further, the bag body of the fixing unit is expanded by the grout material and is in close contact with the inner wall of the drilling hole, thereby forming a stable fixing unit.
In addition, the fixing portion can be formed by directly injecting a grout material into the space portion of the drilling hole and solidifying it, thereby enhancing the adhesion strength of the fixing portion. When forming this fixing part with grout material, if the grout material is injected by inserting a pre-filled drainage pipe into the bulb part and injecting the grout material, the amount of grout material used can be reduced and the construction period is shortened. Cost reduction.
Moreover, by providing a bag body at the rear end portion of the ground surface side of the collecting / draining pipe with a deterrence function, the unstable portion is sandwiched between the bag bodies at both ends, thereby contributing to the stability of the natural ground.

本発明に係る抑止機能付集排水パイプ1は、図1に示すように、後端部2aが地表面側に先端部2bが地面内部に埋設される集排水パイプ2と、該集排水パイプ2の先端部2bに設けられる袋体3と、前記集排水パイプ2と前記袋体3との境目に配設されてグラウト材の前記集排水パイプ内部への侵入を阻止する仕切り部材4と、前記集排水パイプ2の先端部2bに定着部5を形成するためにグラウト材を注入するグラウト注入パイプ6と、前記集排水パイプ2の内部に配設され該パイプ2の先端部2b側に形成される定着部5に先端部7aが配設させる引張材7と、を有してなる。   As shown in FIG. 1, a collecting / draining pipe 1 with a deterrent function according to the present invention includes a collecting / draining pipe 2 in which a rear end 2 a is embedded on the ground surface side and a leading end 2 b is embedded in the ground, and the collecting / draining pipe 2. A bag body 3 provided at the front end portion 2b, a partition member 4 disposed at a boundary between the drainage pipe 2 and the bag body 3 to prevent the grout material from entering the drainage pipe, A grout injection pipe 6 for injecting a grout material to form a fixing portion 5 at the tip end portion 2 b of the drainage pipe 2, and a pipe disposed inside the drainage pipe 2 and formed at the tip end 2 b side of the pipe 2. And a tension member 7 that is provided with a tip 7a.

前記グラウト注入パイプ6は、集排水パイプ2の内部に配設されるとともに前記仕切り部材4を貫通して前記袋体3内部にその先端部6aが到達するようにして配設されている。また、前記引張材7は、例えばPC鋼より線でなるストランドを合成樹脂製の外覆をアンボンドタイプにして被覆してなるものであり、左右2カ所に配設され、定着板8に所望の緊張力を付加されてウエッジ9で、クサビ式でそれぞれ定着されている。   The grout injection pipe 6 is disposed inside the drainage pipe 2 and is disposed so that the tip end portion 6a reaches the inside of the bag body 3 through the partition member 4. The tension member 7 is formed by coating a strand made of, for example, a PC steel wire with an outer cover made of a synthetic resin having an unbonded type. Tension is applied and the wedge 9 is fixed in a wedge manner.

前記引張材7の定着には、図2に示すように、引張材7の後端部7aに固着されている、外周部にネジ溝を刻設してなるマンション(金属製定着具)に裸着させるナット10で定着させるネジ式の場合もある。   As shown in FIG. 2, the tension member 7 is fixed to a condominium (metal fixing tool) that is fixed to the rear end portion 7a of the tension member 7 and has a screw groove on the outer peripheral portion. There is also a case of a screw type that is fixed by a nut 10 to be attached.

前記定着板8には、所用厚さの四角形板であり、前記集排水パイプ2で集めた水を外に排水するための排水孔8aが設けられている。   The fixing plate 8 is a square plate having a desired thickness, and is provided with drainage holes 8a for draining water collected by the drainage pipe 2 to the outside.

前記集排水パイプ2は、例えば、ポリエチレン製(PE製)等の合成樹脂製の筒体であり、その周囲には地盤等の水をパイプ内部に集水するための孔が任意に設けられている。また、その直径は略40mm〜90mm程度である。また、全体の長さは、地盤の定着部分に到達させて、更に5m乃至10m程度挿入できるようにするので、設置場所に応じて適宜長さにする必要がある。   The drainage pipe 2 is, for example, a cylindrical body made of synthetic resin such as polyethylene (made of PE), and a hole for collecting water such as ground is arbitrarily provided around the pipe. Yes. Moreover, the diameter is about 40 mm-about 90 mm. Moreover, since the total length reaches the fixing portion of the ground and can be further inserted by about 5 to 10 m, it is necessary to appropriately set the length according to the installation location.

その場合には、図3乃至図4に示すように、一定長さの集排水パイプ2に対して、中間接続具2cが用いられる。図4(B)に示すように、この中間接続具2cの内部に、前記グラウト注入パイプ6と引張材7とを挿通させて固定する挿通部2d,2eが、金型で一体に成型されて設けられる。集排水パイプ2の内部で下側には水が集水されて流下するのでその流下面積を確保すべく、前記挿通部2d,2eによって前記注入パイプ6と引張材7とを、中間部若しくは上部に配設する。   In that case, as shown in FIGS. 3 to 4, an intermediate connector 2c is used for the drainage pipe 2 having a certain length. As shown in FIG. 4 (B), insertion portions 2d and 2e for inserting and fixing the grout injection pipe 6 and the tensile material 7 are integrally formed in the intermediate connector 2c by a mold. Provided. Since water is collected and flows down inside the drainage pipe 2, the injection pipe 6 and the tensile material 7 are connected to the middle part or the upper part by the insertion parts 2d and 2e in order to secure the flow area. It arranges in.

なお、前記挿通部2d,2eを集排水パイプ2と一体成形することに限らず、同図4(B)の空間部の形状を外形とするスペーサ11として、これを中間接続具2c内部に固定して、前記挿通部2d,2eを形成することもできる。   Note that the insertion portions 2d and 2e are not limited to being integrally formed with the drainage pipe 2, and the spacer 11 having the outer shape of the space portion of FIG. 4B is fixed inside the intermediate connector 2c. And the said insertion parts 2d and 2e can also be formed.

また、図1(A)に示すように、引張材7の先端部7bは、端部治具12により引張材7と袋体3とを結束具13で結束されて、固定されている。   As shown in FIG. 1A, the tip 7b of the tension member 7 is fixed by binding the tension member 7 and the bag body 3 with a binding tool 13 by an end jig 12.

このような本発明に係る抑止機能付集排水パイプ1は、例えば、図5に示すように、切土法面や盛土に使用することで、引張材に緊張録を付与することで、切土法面や盛土に軽い拘束を与え、更に地下水位が高い盛土において地震時の液状化防止のための排水機能を付与するものである。   Such a collection drainage pipe 1 with a deterrent function according to the present invention is, for example, as shown in FIG. It gives light restraint to slopes and embankments, and provides drainage function to prevent liquefaction during earthquakes in embankments with high groundwater levels.

また、図6に示すように、地滑り地を対象にして、地滑り地の横ボーリング工に使用する集水パイプに、アンカー機能を付加するようにすることができる。グラウンドアンカー14とともに作用してアンカー機能の強化および補助となる。   Moreover, as shown in FIG. 6, an anchor function can be added to the water collecting pipe used for the horizontal boring work of the landslide area for the landslide area. It works with the ground anchor 14 to strengthen and assist the anchor function.

その他、一般的な地盤圧密工法を示す図7(A)に代わって、同図7(B)に示すように、集排水パイプ1を軟弱地盤15に垂直に打ち込み、受圧板を設けて引張材7に緊張力を付与して、圧密沈下を促進させるようにするものである。なお、この場合には、集排水パイプ2の内部に集水された水を地表面に吸い上げる装置(例えば、ポンプ等)が必要となる。   In addition, instead of FIG. 7 (A) showing a general ground consolidation method, as shown in FIG. 7 (B), the drainage pipe 1 is driven vertically into the soft ground 15 and a pressure receiving plate is provided to provide a tensile material. A tension force is applied to 7 to promote consolidation settlement. In this case, a device (for example, a pump or the like) that sucks the water collected in the drainage pipe 2 to the ground surface is required.

また、アンカー機能があるので、図8(A),(B)に示すように、マンホールや石油タンクのような地盤に埋設してあるものの浮き上がりを抑止することができる。更に、その集配水機能により、地盤の液状化の防止にも作用する。同図8(A)は、集排水パイプ2で集めた水を、マンホール16内に排水する場合と、同図8(B)は、前記水を地上にくみ上げて排水する場合とを示している。このほか、橋脚,浄水槽,風力発電の基礎などにも適用できる。   Moreover, since there is an anchor function, as shown in FIGS. 8 (A) and 8 (B), it is possible to suppress the floating of what is buried in the ground such as a manhole or an oil tank. In addition, the water collection and distribution function acts to prevent liquefaction of the ground. 8A shows the case where the water collected by the drainage pipe 2 is drained into the manhole 16, and FIG. 8B shows the case where the water is pumped up to the ground and drained. . In addition, it can be applied to piers, water purification tanks, wind power generation foundations, etc.

また、この抑止機能付集排水パイプ1の施工には、例えば、盛土の法面などに仰角(約5°程度)でする場合、ボーリング機で削孔して、孔先端部に拡径した球根部Aを作る。そして、本発明に係る抑止機能付集排水パイプ1を、袋体3のある先端側から削孔内に差し込み、長さに応じて中間接続具2cを介在させて連接し、引張材7及びグラウト注入パイプ6も固定させながら差し込んでいく。   In addition, for the construction of the drainage pipe 1 with a deterrence function, for example, when the elevation is set to the slope of the embankment (about 5 °), the bulb is drilled with a boring machine and expanded to the tip of the hole. Create part A. And the collection drainage pipe 1 with the suppression function which concerns on this invention is inserted in a drilling hole from the front end side which has the bag body 3, and it connects via the intermediate connector 2c according to length, the tension material 7 and grout The injection pipe 6 is also inserted while being fixed.

前記グラウト注入パイプ6で、グラウト材をグラウト注入装置で注入する。これにより、袋体3がグラウト材により膨張し、地盤の球根部Aに充填された状態になる。グラウト材は仕切り部材4により、定着部5から自由長部の集排水パイプ2内部に侵入することはない。   The grout injection pipe 6 injects a grout material with a grout injection device. Thereby, the bag body 3 is inflated by the grout material and is in a state of being filled in the bulb portion A of the ground. Due to the partition member 4, the grout material does not enter the collection / drainage pipe 2 of the free length portion from the fixing portion 5.

そして、前記グラウト材が硬化して袋体3による定着部5が形成された後に、地表面側の法面で、コンクリート製の受圧板などに定着板8を設置して、クサビ式(図1)若しくはネジ式(図2)により、ジャッキで引張材7に緊張力を付与して定着させる。このようにして、本発明に係る抑止機能付集排水パイプ1が補強用のアンカー体として、且つ、地山の集排水パイプとして機能するものである。   Then, after the grout material is cured and the fixing portion 5 is formed by the bag 3, the fixing plate 8 is installed on a concrete pressure receiving plate or the like on the slope of the ground surface side, and the wedge type (FIG. 1). ) Or a screw type (FIG. 2), a tension is applied to the tension member 7 with a jack to fix it. In this way, the collecting / draining pipe 1 with a restraining function according to the present invention functions as a reinforcing anchor body and as a collecting / draining pipe for natural ground.

本発明の他の実施例に係る抑止機能付集排水パイプ1aとしては、図9に示すように、定着部5の構造に係るもので、削孔の先端部の球根部Aに直接的にグラウト材を注入して、地盤等にグラウト材が密着した球根部Aを形成するようにしたものである。   As shown in FIG. 9, the collecting / draining pipe 1a with a deterrent function according to another embodiment of the present invention relates to the structure of the fixing portion 5 and is directly grouted to the bulb portion A at the tip of the drilling hole. The material is injected to form a bulb part A in which the grout material is in close contact with the ground or the like.

集排水パイプ2の先端部の仕切り部材4を境にして、その先にグラウト注入パイプ6の先端部6aを地盤の球根部A内に直接突出させ、引張材7の先端部7bも同様に球根部A内に突出させる。前記仕切り部材4においては、長さの短くしてある袋体3を取り付け、結束具13でグラウト材が自由長部の集排水パイプ2側に侵入しないように構成している。   With the partition member 4 at the tip of the drainage pipe 2 as a boundary, the tip 6a of the grouting pipe 6 is directly projected into the bulb A of the ground, and the tip 7b of the tension member 7 is similarly a bulb. Project into part A. In the partition member 4, the bag body 3 having a short length is attached, and the tying member 13 is configured so that the grout material does not enter the collecting / draining pipe 2 side of the free length portion.

また、前記グラウト注入パイプ6は、前記袋体3を貫通して削孔の奥にパイプの先端部6aが至るとともに、前記袋体3を貫通する部分の途中に袋体用注入孔6bが別に設けられている。これにより、前記パイプ6で球根部Aにグラウト材を注入すると、同時に、前記袋体3にもグラウト材が注入され、当該袋体3が膨張して削孔内に充填される。   In addition, the grout injection pipe 6 penetrates the bag body 3 to reach the tip 6a of the pipe at the back of the drilling hole, and a bag body injection hole 6b is provided in the middle of the portion passing through the bag body 3. Is provided. Thus, when the grout material is injected into the bulb portion A by the pipe 6, the grout material is also injected into the bag body 3 at the same time, and the bag body 3 expands and fills the hole.

これにより、球根部Aのグラウト材が削孔内から地表側へ漏出するのを防止する。更に、この球根部Aを加圧して地山に押しつける効果もある。また、仕切り部材4における図中の右側の結束具13により、球根部Aに注入されたグラウト材が、自由長部の集排水パイプ2内への侵入が防止される。   Thereby, it is prevented that the grout material of the bulb portion A leaks from the borehole to the ground surface side. Furthermore, there is an effect that the bulb portion A is pressurized and pressed against the natural ground. Further, the grout material injected into the bulb portion A is prevented from entering the collecting / drainage pipe 2 of the free length portion by the right side binding tool 13 in the drawing of the partition member 4.

前記集排水パイプ1aにより、球根部Aがグラウト材で地盤内に密実に形成され、定着部として強固なものとなる。   By the collecting and draining pipe 1a, the bulb portion A is densely formed in the ground with a grout material, and becomes a solid fixing portion.

本発明の他の実施例に係る抑止機能付集排水パイプ1bは、図10に示すように、定着部5内において袋体3の先に集排水パイプ2の先端部が配設され、グラウト注入パイプ6が当該集排水パイプ2の先端部の外側に配設され、引張材7の先端部7bが当該集排水パイプ2の先端部の内部に配設されるとともに、この集排水パイプ2の先端部と当該引張材7との間隙に、例えば、合成樹脂による硬化材17が充填されてなるものである。 As shown in FIG. 10, a collecting / draining pipe 1 b with a deterrent function according to another embodiment of the present invention has a tip end of the collecting / draining pipe 2 disposed at the tip of the bag body 3 in the fixing unit 5, and grout injection. The pipe 6 is disposed outside the tip of the drainage pipe 2, the tip 7 b of the tension member 7 is disposed inside the tip of the drainage pipe 2 , and the tip of the drainage pipe 2 The gap between the portion and the tensile material 7 is filled with, for example, a curing material 17 made of synthetic resin.

前記定着部5における集排水パイプ2の先端部には、筒状の終端パイプ18が設けられている。このように、集排水パイプ1bの先端部を予め定着部として形成しておくことで、削孔に挿入した後に、球根部Aに注入するグラウト材は少なくて済む。よって地山にこの抑止機能付集排水パイプ1bを設置する工期を短縮させることができる。更に、定着部5としての強度も向上する。   A cylindrical end pipe 18 is provided at the tip of the collecting / draining pipe 2 in the fixing unit 5. In this way, by forming the tip end portion of the drainage pipe 1b as a fixing portion in advance, less grout material is injected into the bulb portion A after being inserted into the drilling hole. Therefore, the construction period for installing this collection / drainage pipe 1b with a deterrence function in the natural ground can be shortened. Furthermore, the strength as the fixing unit 5 is also improved.

本発明の他の実施例に係る抑止機能付集排水パイプ1cは、図11に示すように、集排水パイプ1cの後端部2aの側において、袋体3aが設けられているものである。この袋体3aにグラウト材を充填させることで、抑止機能付集排水パイプ1cの両端で定着されて、受圧板の代わりとなって盛土等の不安定部の緩みを抑止することができる。   As shown in FIG. 11, the collecting / draining pipe 1c with a restraining function according to another embodiment of the present invention is provided with a bag body 3a on the rear end 2a side of the collecting / draining pipe 1c. By filling the bag body 3a with a grout material, it is fixed at both ends of the collecting / draining pipe 1c with a restraining function, and loosening of unstable parts such as embankment can be restrained instead of the pressure receiving plate.

本発明に係る抑止機能付集排水パイプ1の正面図(A)と、側面図(B)と、X−X線に沿った断面図(C)である。It is the front view (A), side view (B), and sectional view (C) along the XX line of the collection drainage pipe 1 with a deterrent function according to the present invention. 同引張材7の地表側の定着部材が、ネジ式である場合の一部半断面図(A)と、その側面図(B)とである。The fixing member on the ground surface side of the tension member 7 is a partial half sectional view (A) and a side view (B) when the fixing member is a screw type. 同本発明の抑止機能付集排水パイプ1において、集排水パイプ2に中間接続具2cで長さを延長する様子を示す半断面図である。In the collection drainage pipe 1 with the suppression function of the present invention, it is a half sectional view showing a state in which the length is extended to the collection drainage pipe 2 by an intermediate connector 2c. 中間接続具2cの判断面図(A)と、Y−Y線に沿った断面図(B)である。It is the judgment surface view (A) of the intermediate | middle connector 2c, and sectional drawing (B) along the YY line. 本発明に係る抑止機能付集排水パイプ1の使用例の説明図である。It is explanatory drawing of the usage example of the collection drainage pipe 1 with the suppression function which concerns on this invention. 同本発明に係る抑止機能付集排水パイプ1の使用例の説明図である。It is explanatory drawing of the usage example of the collection drainage pipe 1 with the suppression function which concerns on the same this invention. 従来の盛土とサンドパイルによる軟弱地盤の改良工法を示す説明図(A)と、本発明の抑止機能付集排水パイプ1を使用した改良工法を示す説明図(B)とである。It is explanatory drawing (A) which shows the improvement construction method of the soft ground by the conventional embankment and sand pile, and explanatory drawing (B) which shows the improvement construction method using the collection drainage pipe 1 with a suppression function of this invention. 本発明の抑止機能付集排水パイプ1をマンホールの浮き上がり防止に使用した例の説明図(A),(B)である。It is explanatory drawing (A), (B) of the example which used the collection drainage pipe 1 with a suppression function of this invention for the lift prevention of a manhole. 他の実施例に係る抑止機能付集排水パイプ1aの半断面図(A)と、側面図(B)とである。They are a half sectional view (A) and a side view (B) of a collection drainage pipe with a deterrent function according to another embodiment. 同他の実施例に係る抑止機能付集排水パイプ1bの半断面図(A)と、側面図(B)とである。They are a semi-sectional view (A) and a side view (B) of a collection drainage pipe with a deterrent function according to another embodiment. 同 他の実施例に係る抑止機能付集排水パイプ1cの半断面図(A)と、側面図(B)とである。They are a semi-sectional view (A) and a side view (B) of a collection drainage pipe with a deterrent function according to another embodiment.

符号の説明Explanation of symbols

1,1a,1b,1c 抑止機能付集排水パイプ、
集排水パイプ、
2a 後端部、
2b 先端部、
2c 中間接続具、
2d,2e 挿通部、
3,3a 袋体、
4 仕切り部材、
5 定着部、
6 グラウト注入パイプ、
6a 先端部、
6b 袋体用注入孔、
7 引張材、
7a 後端部、
7b 先端部、
8 定着板、
8a 排水孔、
9 ウエッジ、
10 ナット、
11 スペーサ、
12 端部治具、
13 結束具、
14 グラウンドアンカー、
15 軟弱地盤、
16 マンホール、
17 硬化材、
18 終端パイプ。
1,1a, 1b, 1c Collection drain pipe with deterrent function,
2 drainage pipes,
2a rear end,
2b tip,
2c intermediate connector,
2d, 2e insertion part,
3,3a bag,
4 partition members,
5 Fixing part,
6 Grout injection pipe,
6a tip,
6b injection hole for bag,
7 Tensile material,
7a rear end,
7b tip,
8 Fixing plate,
8a drainage hole,
9 Wedge,
10 nuts,
11 spacer,
12 end jig,
13 Tying tool,
14 Ground anchor,
15 Soft ground,
16 Manhole,
17 Curing material,
18 End pipe.

Claims (2)

後端部が地表面側に先端部が地面内部に埋設される集排水パイプと、
該集排水パイプの先端部に設けられグラウト材が注入されて定着部となる袋体と、
前記集排水パイプと前記袋体との境目に配設されてグラウト材の前記集排水パイプ内部への侵入を阻止する仕切り部材と、
前記集排水パイプの先端部に定着部を形成するためにグラウト材を注入するグラウト注入パイプと、
前記集排水パイプの内部に配設され該パイプの先端部側に形成される定着部に先端部が配設される引張材とを有してなり、
前記グラウト注入パイプは、袋体を貫通して削孔の奥にパイプの先端部が至り、前記袋体を貫通する部分の途中に袋体用注入孔が別に設けられていて、
定着部内において袋体の先に集排水パイプの先端部が配設され、グラウト注入パイプが当該集排水パイプの先端部の外側に配設され、引張材の先端部が当該集排水パイプの先端部の内部に配設されるとともに、この集排水パイプの先端部と当該引張材との間隙に硬化材が充填されていること、
を特徴とする抑止機能付集排水パイプ。
A drainage pipe whose rear end is on the ground surface side and whose front end is embedded in the ground; and
A bag body that is provided at the tip of the drainage pipe and into which a grout material is injected to become a fixing portion ;
A partition member disposed at the boundary between the drainage pipe and the bag body to prevent the grout material from entering the drainage pipe,
A grout injection pipe for injecting a grout material to form a fixing part at the tip of the drainage pipe;
A tension member disposed at the front end portion of the pipe and disposed at the front end portion of the pipe.
The grout injection pipe passes through the bag body, the tip of the pipe reaches the back of the drilling hole, and a bag body injection hole is separately provided in the middle of the portion that penetrates the bag body ,
In the fixing unit, the tip of the drainage pipe is disposed at the tip of the bag body, the grout injection pipe is disposed outside the tip of the drainage pipe, and the tip of the tensile material is the tip of the drainage pipe. And a hardening material is filled in the gap between the tip of the drainage pipe and the tensile material,
Drainage pipe with a deterrent function characterized by
集排水パイプの後端部に、グラウト材が充填されて受圧板の代わりとなる袋体が設けられていること、
を特徴とする請求項1に記載の抑止機能付集排水パイプ。
A bag body that is filled with grout material and serves as a substitute for the pressure receiving plate is provided at the rear end of the drainage pipe,
The drainage pipe with a deterrent function according to claim 1.
JP2005372016A 2005-12-26 2005-12-26 Drainage pipe with deterrent function Active JP4705468B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5994350B2 (en) * 2012-04-16 2016-09-21 株式会社大林組 Collapse prevention structure
CN107246019B (en) * 2017-06-30 2019-10-29 浙江大学 A kind of slope underground water drilling self-starting drainage by suction method
JP7093939B1 (en) * 2021-12-22 2022-07-01 株式会社カテックス Packer and ground reinforcement method using it

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6282113A (en) * 1985-10-04 1987-04-15 Kyokado Eng Co Ltd Construction process for stabilizing ground

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6282113A (en) * 1985-10-04 1987-04-15 Kyokado Eng Co Ltd Construction process for stabilizing ground

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