JP2003342943A - Hardener filling frame and method for filling hardener - Google Patents
Hardener filling frame and method for filling hardenerInfo
- Publication number
- JP2003342943A JP2003342943A JP2002150391A JP2002150391A JP2003342943A JP 2003342943 A JP2003342943 A JP 2003342943A JP 2002150391 A JP2002150391 A JP 2002150391A JP 2002150391 A JP2002150391 A JP 2002150391A JP 2003342943 A JP2003342943 A JP 2003342943A
- Authority
- JP
- Japan
- Prior art keywords
- hardening material
- filling
- reinforcing bar
- mold
- filled
- 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.)
- Granted
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は硬化材充填型枠およ
び硬化材の充填方法に関する。詳しくは地盤補強、又は
地盤改良としての地中防護杭を建造するための硬化材充
填型枠および硬化材の充填方法に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hardening material filling form and a hardening material filling method. More specifically, the present invention relates to a hardening material-filled formwork and a hardening material filling method for constructing underground protection piles for ground reinforcement or ground improvement.
【０００２】[0002]
【従来の技術】従来より地上の建物や通路、鉄道などの
構造物の直下にトンネルを建設する場合、これらの構造
物が地盤沈下による破損、倒壊などの事故発生の原因と
なるのを防ぐための防護方法としてパイプルーフ工法が
ある。2. Description of the Related Art Conventionally, when constructing a tunnel directly under a structure such as a building, passage, or railway on the ground, it is necessary to prevent these structures from causing an accident such as damage or collapse due to ground subsidence. There is a pipe roof construction method as a protection method.
【０００３】このパイプルーフ工法は図１１に示すよう
に、防護を必要とする対象構造物１０１の直下に上載荷
重に適応できる鋼管１０２を場合によっては溶接で継ぎ
足しながら油圧作動の掘進機を使って所定の区間を埋設
併置し、更に鋼管１０２と地山との隙間に生コンクリー
ト・モルタル・セメントミルクを充填し、対象構造物１
０１を下から支承する構造とするものである。In this pipe roof construction method, as shown in FIG. 11, a steel pipe 102 capable of accommodating an overburden load is provided directly below a target structure 101 requiring protection by using a hydraulically operated excavator while adding a steel pipe 102 by welding in some cases. Predetermined sections are embedded side-by-side, and the gap between the steel pipe 102 and the ground is filled with fresh concrete, mortar, and cement milk.
01 is supported from below.
【０００４】また鉄道や道路などのトンネル工事では、
地中掘削における地山の地盤沈下による崩落を防ぐため
に図１２に示すように、鋼管１０２を場合によっては溶
接で継ぎ足しながら油圧作動の掘進機を使ってアーチ状
に埋設併置し、更に鋼管１０２と地山との隙間に生コン
クリート・モルタル・セメントミルクを充填して地山を
補強して、鋼管長さ分の掘削を行った後に、再び鋼管に
よる埋設併置を行いながらの掘削を行う構成とするもの
である。In tunnel construction for railways and roads,
In order to prevent the collapse of the ground due to the ground subsidence in the underground excavation, as shown in FIG. 12, the steel pipes 102 may be added by welding in some cases by using a hydraulically operated excavator so as to be embedded in an arch shape, and the steel pipes 102 and The gap between the ground and the ground is filled with fresh concrete, mortar, and cement milk to reinforce the ground, and after excavating for the length of the steel pipe, excavation is carried out again while embedding with steel pipes. It is a thing.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら鋼管によ
る地盤補強では、鋼管長さを充分に考慮した広さの作業
場が必要となってくる。従って狭小な作業場あるいはト
ンネル内などのように、限られた場所では短尺物を溶接
によって接合しながらの作業となり非常に煩雑となる問
題がある。However, in the ground reinforcement by the steel pipe, it is necessary to have a work space having a sufficient size considering the length of the steel pipe. Therefore, in a limited place such as a small work space or a tunnel, work is performed while welding short objects by welding, which is very complicated.
【０００６】また、鋼管と地山との隙間への充填では地
山との密着性を高めるために、注入圧力を上げる必要が
あるが、注入圧力を上げれば上げるほど、セメントなど
の硬化材が地山内に流出して硬化材のロスが生じると共
に密着性効果を高めるまでには至らない問題がある。Further, in filling the gap between the steel pipe and the ground, it is necessary to raise the injection pressure in order to enhance the adhesion to the ground, but the higher the injection pressure, the harder the material such as cement becomes. There is a problem that the material leaks into the ground and loss of the hardened material occurs, and the adhesion effect cannot be enhanced.
【０００７】更にトンネル内では鋼管の運搬に非常に手
間を要し、掘進機を使って鋼管による掘削では、鋼管の
長さが制限されることとなり、かつトンネル開口縁に対
して放射状に鋼管が掘進されることから、鋼管を隣接配
置することができない問題が生じる。Further, it takes a lot of time and labor to transport the steel pipe in the tunnel, and when the steel pipe is excavated by using the excavator, the length of the steel pipe is limited, and the steel pipe is radiated radially with respect to the opening edge of the tunnel. Since it is dug, there arises a problem that the steel pipes cannot be arranged adjacent to each other.
【０００８】本発明は、以上の点に鑑みて創案されたも
のであって、運搬性に優れ、かつ地山との密着性を高め
た硬化材充填型枠および硬化材の充填方法を提供するこ
とを目的とするものである。The present invention was devised in view of the above points, and provides a hardening material-filling mold and a hardening material filling method which are excellent in transportability and have improved adhesion to the ground. That is the purpose.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明に係る硬化材充填型枠は、可撓性素材より
成る中空状の型枠と、該型枠内に配置される少なくとも
１の配筋用スペーサーと、該配筋用スペーサーによって
配置される複数の配筋用芯材とを備える。In order to achieve the above object, a hardening material-filled formwork according to the present invention is provided with a hollow formwork made of a flexible material and arranged in the formwork. At least one reinforcing bar spacer and a plurality of reinforcing bar core members arranged by the reinforcing bar spacer are provided.
【００１０】ここで、可撓性素材より成る中空状の型枠
内に配筋用スペーサーによって配置される配筋用芯材を
備えることによって、弾力・柔軟性に富む可曲性に優れ
た型枠となると共に、配筋用芯材によって硬化材の型枠
内への注入・硬化により曲げ強度が増大する。[0010] Here, by providing a core material for reinforcing bars arranged by a spacer for reinforcing bars in a hollow form frame made of a flexible material, a mold excellent in flexibility and flexibility is provided. In addition to forming a frame, bending strength is increased by injecting and hardening a hardening material into the mold by the reinforcing bar.
【００１１】また、可撓性素材より成る中空状の型枠
と、該型枠の少なくとも一端側に配置される連結用カッ
プラーと、該袋体内に配置される少なくとも１の配筋用
スペーサーと、該配筋用スペーサーによって配置される
複数の配筋用芯材とを備える。Further, a hollow mold made of a flexible material, a coupling coupler arranged at least on one end side of the mold, and at least one reinforcing bar spacer arranged in the bag body. And a plurality of core members for reinforcing bars arranged by the spacers for reinforcing bars.
【００１２】ここで、可撓性素材より成る中空状の型枠
内に配筋用スペーサーによって配置される配筋用芯材を
備えることによって、弾力・柔軟性に富む可曲性に優れ
た型枠となると共に、連結用カップラーによって型枠同
志を連結することが可能となる。又配筋用芯材によって
硬化材の型枠内への注入・硬化により曲げ強度が増大す
る。[0012] Here, by providing a core material for reinforcing bars arranged by a reinforcing bar spacer in a hollow form frame made of a flexible material, a mold excellent in flexibility and flexibility is provided. It becomes a frame, and it becomes possible to connect the molds to each other by the coupling coupler. Further, the bending strength is increased by injecting and hardening the hardening material into the mold by the reinforcing bar core material.
【００１３】上記の目的を達成するために、本発明に係
る硬化材の充填方法は、可撓性素材より成る中空状の型
枠と、該型枠内に配置される少なくとも１の配筋用スペ
ーサーと、該配筋用スペーサーによって配置される複数
の配筋用芯材とを備える硬化材充填型枠を用いた硬化材
の充填方法であって、地山に形成された穴に、硬化材充
填型枠を挿入する工程と、該型枠内に硬化材を注入する
工程とを備える。In order to achieve the above-mentioned object, a method for filling a hardening material according to the present invention comprises a hollow mold made of a flexible material, and at least one reinforcing bar arranged in the mold. A method of filling a hardening material using a hardening material-filling formwork comprising a spacer and a plurality of reinforcing-material core materials arranged by the reinforcing-bar spacer, wherein the hardening material is provided in a hole formed in the ground. The method includes a step of inserting a filling mold and a step of injecting a hardening material into the mold.
【００１４】ここで、地盤補強のための防護工として地
山に形成される穴に、硬化材充填型枠を挿入し、硬化材
充填型枠内に硬化材を注入することによって、型枠内に
硬化材が充填されることで地中に防護、又は強化用の
梁、杭が形成される。また、又配筋用芯材によって硬化
材の型枠内への注入・硬化により曲げ強度が増大する。Here, as a protective work for ground reinforcement, a hardening material-filled mold is inserted into a hole formed in the ground, and the hardening material is injected into the hardening material-filled mold, whereby A beam or pile for protection or reinforcement is formed in the ground by being filled with a hardening material. In addition, the bending strength is increased by injecting and hardening the hardening material into the mold by the reinforcing bar core material.
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参酌しながら説明し、本発明の理解に供する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings, for the understanding of the present invention.
【００１６】図１に、本発明を適用した硬化材充填型枠
の一例を説明するための断面側面図を示す。ここで示す
硬化材充填型枠１は、可撓性の筒体２と、この筒体２の
両側開口端に装着される連結用カップラー３と、筒体２
内に配筋用芯材４を配置する配筋用スペーサー５と、硬
化材注入ホース６とから構成される。FIG. 1 is a sectional side view for explaining an example of a hardening material-filled mold to which the present invention is applied. The hardening material-filled formwork 1 shown here is a flexible tubular body 2, coupling couplers 3 attached to both open ends of the tubular body 2, and a tubular body 2.
It comprises a reinforcing bar spacer 5 in which the reinforcing bar core material 4 is arranged, and a hardening material injection hose 6.
【００１７】ここで、筒体２は、アラミド繊維より形成
されており、このアラミド繊維は、耐衝撃性、耐疲労性
等の機械的性質に優れており、更にセメントミルクなど
の硬化材を圧入することで、膨張し、硬化材が浸み込む
機能を有するものである。Here, the tubular body 2 is formed of aramid fiber, and this aramid fiber has excellent mechanical properties such as impact resistance and fatigue resistance, and a hardening material such as cement milk is press-fitted. By doing so, it has a function of expanding and penetrating the hardening material.
【００１８】また、連結用カップラー３は、筒体２の両
側開口端に装着され、この外周面に沿ってネジ部７が周
設されている。そこで図２に示すように、連結しようと
する２個の硬化材充填型枠１の連結用カップラー３同志
を、連結リング８によって互いに螺合し連結できる構成
とするものである。Further, the coupling coupler 3 is mounted on both open ends of the cylindrical body 2, and the screw portion 7 is provided around the outer peripheral surface thereof. Therefore, as shown in FIG. 2, the coupling couplers 3 of the two hardening material-filled molds 1 to be coupled can be screwed together by a coupling ring 8 to be coupled.
【００１９】また、配筋用芯材４は、ＰＣ鋼線により形
成されており、このＰＣ鋼線は引っ張り強度および曲げ
強度に優れた性能を有するものである。この配筋用芯材
４は連結用カップラー３を挿通した状態で圧着グリップ
１３によって固定されることで連結用カップラー３間を
渡設した構成とされるものである。そこで図３に示すよ
うに、連結用カップラー間に渡設されるこれらの配筋用
芯材４は、配筋用スペーサー５によって型枠２内の円周
方向に沿って配置される。The reinforcing bar 4 is made of PC steel wire, and the PC steel wire has excellent tensile strength and bending strength. The core material 4 for bar arrangement is fixed by the crimping grips 13 in a state where the coupling coupler 3 is inserted, so that the coupling couplers 3 are provided between the coupling couplers 3. Therefore, as shown in FIG. 3, the reinforcing bar core members 4 provided between the coupling couplers are arranged by the reinforcing bar spacers 5 along the circumferential direction in the form 2.
【００２０】配筋用スペーサー５は、その円周縁に沿っ
て一定間隔ごとに配筋用芯材係留用溝部９が切欠形成さ
れる。この配筋用芯材係留用溝部９は、その開口径が配
筋用芯材径よりやや小さめに形成されることによって配
筋用芯材係留用溝部９内に挿入される配筋用芯材４は筒
状の型枠の長手方向に沿って、かつその円周方向上の一
定間隔ごとに支持されることになる。The reinforcing bar spacer 5 has grooves 9 for mooring the reinforcing bar at regular intervals along the circumference of the circle. The reinforcing bar core material mooring groove portion 9 is inserted into the reinforcing bar core material mooring groove portion 9 by forming the opening diameter thereof to be slightly smaller than the reinforcing bar core material diameter. 4 is supported along the longitudinal direction of the tubular mold and at regular intervals in the circumferential direction.
【００２１】また、配筋用スペーサー５の中央には注入
ホース挿入用穴部１０が貫設されると共に、図４に示す
ように連結用カップラー３の中央に、注入ホース挿入用
穴部１０が貫設されるものである。Further, an injection hose insertion hole 10 is provided at the center of the reinforcing bar spacer 5, and an injection hose insertion hole 10 is provided at the center of the coupling coupler 3 as shown in FIG. It is to be pierced.
【００２２】更に硬化材注入ホース６は図５に示すよう
に、その長手方向に沿って硬化材噴出穴部１１が穿孔さ
れるものであり、この硬化材噴出穴部１１には硬化材注
入ホース６の内圧によって開き硬化材を筒体内へ噴出
し、筒体内から硬化材注入ホース６内への進入を防ぐた
めの逆止弁１２がそれぞれ設けられた構成とするもので
ある。Further, as shown in FIG. 5, the hardening material injection hose 6 has a hardening material injection hole portion 11 bored along the longitudinal direction thereof. The hardening material injection hole portion 11 has a hardening material injection hose. A check valve 12 is provided to prevent the hardening material from opening into the cylinder by the internal pressure of 6 to prevent it from entering the hardening material injection hose 6 from the cylinder.
【００２３】なお、筒体は必ずしもアラミド繊維より形
成される必要性は無く、可撓性および膨張性を有するも
のであればいかなるものであっても良いが、セメントミ
ルクなどの硬化材を圧入よる耐衝撃性、耐疲労性等の機
械的性質に耐える素材のものが好ましい。また、型枠の
形状として円筒形に必ずしも形成される必要は無く、状
況に応じて三角形、四角形や台形などいかなる形状であ
っても構わない。この場合には配筋用スペーサーも型枠
の形状に合わせた形状とすることが望ましい。更に硬化
材の圧入により膨張性を有するとは、配筋用スペーサー
による断面面積より大きくなるように予めその長さに余
裕を持たせた状態で筒体を連結用カップラー間に装着す
ることによって膨張させる機構や筒体を硬化材の圧入に
より膨張する素材によって形成することが考えられる。The cylindrical body is not necessarily made of aramid fiber, and may be any one having flexibility and expandability, but a hardening material such as cement milk is press-fitted. A material that can withstand mechanical properties such as impact resistance and fatigue resistance is preferable. Further, the shape of the mold is not necessarily formed in a cylindrical shape, and may be any shape such as a triangle, a quadrangle, or a trapezoid depending on the situation. In this case, it is desirable that the reinforcing bar spacer also has a shape that matches the shape of the mold. Further, having the expandability by press-fitting the hardened material means that the cylinder is mounted between the coupling couplers with a sufficient length in advance so that it becomes larger than the cross-sectional area of the reinforcing bar spacer. It is conceivable to form the mechanism and the tubular body with a material that expands by press-fitting a hardening material.
【００２４】また、配筋用芯材は必ずしもＰＣ鋼線によ
り形成される必要性は無く、引っ張り強度および曲げ強
度に優れた性能を有するものであれば、ピアノ線などの
金属線、あるいはアラミド系のカーボン線などの合成樹
脂線などいかなるものであっても良いが、弾力性を併せ
持つことによって硬化材充填型枠を自在に折り曲げるこ
とができる芯材であることが好ましい。The rebar core material does not necessarily have to be formed of PC steel wire, and may be a metal wire such as a piano wire or an aramid-based wire as long as it has excellent tensile strength and bending strength. Although it may be any such as a synthetic resin wire such as a carbon wire, it is preferably a core material which has flexibility and can flexibly bend the hardening material-filled formwork.
【００２５】更に配筋用スペーサーおよび連結用カップ
ラーは、配筋用芯材を定位置に保持すると共に、硬化材
充填型枠の断面構造が保持されることで、硬化材の注入
により筒体が膨張した場合でも配筋用スペーサーと配筋
用芯材による断面強度が保持されることとなる。Furthermore, the reinforcing bar spacer and the coupling coupler hold the reinforcing bar core material in place and the cross-sectional structure of the hardening material-filled form is held, so that the cylindrical body is injected by the hardening material injection. Even when expanded, the cross-section strength of the reinforcing bar and the reinforcing bar is maintained.
【００２６】また、硬化材注入ホースは塩化ビニールな
ど自在に曲げることが可能なフレキシブルな素材である
ことが好ましく、更にその両側端の少なくとも一端側に
開閉弁を設けることで硬化材の注入量を調整できる機構
とすることが望ましいものである。Further, the hardening material injection hose is preferably made of a flexible material such as vinyl chloride that can be freely bent, and an opening / closing valve is provided on at least one end of both ends of the hardening material injection hose so that the amount of hardening material injected can be increased. It is desirable to have an adjustable mechanism.
【００２７】本発明の硬化材充填型枠では、フレキシブ
ルな筒体とＰＣ鋼線による配筋用芯材により自在に折り
曲げることが可能となる。In the hardening material-filled formwork of the present invention, it is possible to bend it freely by means of the flexible tubular body and the core material for the reinforcing bar made of PC steel wire.
【００２８】また、図６に示すように、複数個の硬化材
充填型枠１を連結用カップラー３と連結リング８によっ
て互いに連結することで、例えばパイプルーフ工法にお
ける地山削孔深さに応じて長さ調整が自在に行うことが
可能となる。Further, as shown in FIG. 6, a plurality of hardening material-filled molds 1 are connected to each other by a connecting coupler 3 and a connecting ring 8 so that, for example, depending on the depth of ground drilling in the pipe roof construction method. The length can be freely adjusted.
【００２９】図７および図８に、本発明を適用した硬化
材充填型枠による硬化材の充填方法の一例を説明するた
めの説明図を示す。FIG. 7 and FIG. 8 are explanatory views for explaining an example of the method of filling the hardening material with the hardening material filling form to which the present invention is applied.
【００３０】例えばトンエル坑口部における地盤の安定
をはかるための地盤安定化工法として、地山Ａにドリル
パイプ１４によって削孔１５を形成する。For example, as a ground stabilization method for stabilizing the ground at the mouth of Tonuel pit, a drill pipe 14 is used to form a hole 15 in the ground A.
【００３１】そしてドリルパイプ１４内に、前記本発明
を適用した硬化材充填型枠の一例で詳述したように、可
撓性の筒体２と、この筒体２の両側開口端に装着される
連結用カップラー３と、型枠２内に配筋用芯材４を配置
する配筋用スペーサー５と、硬化材注入ホース６とから
構成される硬化材充填型枠１を挿入する。Inside the drill pipe 14, as described in detail in the example of the hardening material-filled formwork to which the present invention is applied, the flexible tubular body 2 and the open ends on both sides of the tubular body 2 are mounted. The hardening material-filled mold 1 including the connecting coupler 3, the reinforcing bar spacer 5 for arranging the reinforcing bar core material 4 in the mold 2, and the hardening material injection hose 6 is inserted.
【００３２】次にドリルパイプ１４を削孔１５から抜き
取り、削孔１５内に硬化材充填型枠１を残置した状態
で、硬化材注入ホース６にセメントミルクによる硬化材
を供給する供給ホース１６を接続し、硬化材１７の加圧
注入を行う。Next, the drill pipe 14 is pulled out from the drilled hole 15, and with the hardening material-filled formwork 1 left in the drilled hole 15, the supply hose 16 for supplying the hardening material with cement milk to the hardening material injection hose 6 is provided. After the connection, the hardening material 17 is injected under pressure.
【００３３】そこで図９に示すように、硬化材注入ホー
ス６を介して筒体２内に充填される硬化材１７は、筒体
２内に充填された後、その注入圧力によって筒体２が膨
張して削孔１５内壁面に圧着するまで膨張し、地山の圧
力と均衡した状態での硬化材の充填が行われることとな
る。Therefore, as shown in FIG. 9, the hardening material 17 filled in the cylindrical body 2 through the hardening material injecting hose 6 is filled in the cylindrical body 2 and then, the cylindrical body 2 is injected by the injection pressure. The expansion material expands until it is pressed against the inner wall surface of the drilled hole 15, and the hardening material is filled in a state of being balanced with the pressure of the natural ground.
【００３４】この場合に筒体が織布など透水性を有する
素材であれば、硬化材に含まれる水分が筒体を通して筒
体外に排出されることで密度の高い硬化材が筒体内に形
成され、かつ地山と筒体との密着性が高められることと
なる。In this case, if the tubular body is a water-permeable material such as a woven cloth, the moisture contained in the curing material is discharged through the tubular body to the outside of the tubular body to form a high-density curing material inside the tubular body. In addition, the adhesion between the ground and the cylinder is enhanced.
【００３５】このようにして硬化材を充填した後、硬化
材の硬化によって削孔内に密着した状態での硬化材によ
る補強構造体が形成されることとなる。ここで、筒体内
には配筋用スペーサーによって配筋用芯材を定位置に保
持されることで硬化材充填型枠の断面強度が保持される
こととなる。After the hardening material is filled in this way, the hardening structure of the hardening material is formed by the hardening of the hardening material in a state of being in close contact with the inside of the drilled hole. Here, the cross-section strength of the hardening material-filled mold is maintained by holding the reinforcing bar core member in place by the reinforcing bar spacer in the cylindrical body.
【００３６】また、図１０に示すように、屈曲した削孔
１５に対して硬化材充填型枠１を削孔１５の曲径に応じ
て折り曲げながら挿入し、更に硬化材充填型枠１同志を
互いに連結することにより削孔１５内の全長に渡り硬化
材充填型枠の設置を行う。Further, as shown in FIG. 10, the hardening material-filled formwork 1 is inserted into the bent drilling hole 15 while being bent according to the bending diameter of the drilling hole 15, and the hardening material-filling formwork 1 is inserted. By connecting to each other, the hardening material-filled formwork is installed over the entire length of the drilled hole 15.
【００３７】そして硬化材注入ホース６にセメントミル
クによる硬化材を供給する供給ホース１６を接続し、硬
化材の加圧注入を行い、その注入圧力によって筒体２が
膨張して削孔１５内壁面に圧着するまで硬化材を充填す
ることとなる。従って大きな曲率を有する削孔に対して
も自在に折り曲げることが硬化材充填型枠によって削孔
内に硬化材を充填することが可能となる。Then, a supply hose 16 for supplying a hardening material made of cement milk is connected to the hardening material injecting hose 6 to inject the hardening material under pressure, and the injection body pressure expands the cylindrical body 2 to form an inner wall surface of the drilled hole 15. The curing material is filled until it is crimped. Therefore, it is possible to fill the hardened material into the drilled hole by the curable material filling mold by flexibly bending the drilled hole having a large curvature.
【００３８】なお、硬化材は必ずしもセメントミルクな
どのセメント系である必要性は無く、ウレタン樹脂液や
アクリル樹脂液などの合成樹脂系であっても構わなく、
短時間での硬化が行え、かつ硬化後の強度に優れている
素材であることが好ましい。The hardening material does not necessarily have to be cement-based such as cement milk, but may be synthetic resin-based such as urethane resin liquid or acrylic resin liquid.
A material that can be cured in a short time and has excellent strength after curing is preferable.
【００３９】また、本発明を適用した硬化材充填型枠
は、トンネル坑口部における地盤の安定をはかるための
地盤安定化工法としての防護杭の他に、軟弱地における
地盤改良としての基礎杭などあらゆる梁構造物および杭
構造の型枠として使用できるものである。更に型枠の形
状として円筒形に必ずしも形成される必要は無く、状況
に応じて三角形、四角形や台形などいかなる形状であっ
ても構わない。この場合には配筋用スペーサーも型枠の
形状に合わせた形状とすることが望ましい。Further, the hardening material-filled formwork to which the present invention is applied includes, in addition to the protection pile as the ground stabilization method for stabilizing the ground at the mouth of the tunnel, the foundation pile as the ground improvement in soft ground. It can be used as a formwork for all beam structures and pile structures. Further, the shape of the mold is not necessarily formed into a cylindrical shape, and may be any shape such as a triangle, a quadrangle or a trapezoid depending on the situation. In this case, it is desirable that the reinforcing bar spacer also has a shape that matches the shape of the mold.
【００４０】[0040]
【発明の効果】以上述べて来た如く本発明を適用した硬
化材充填型枠よれば、可撓性および可曲性を有したフレ
キシブルな型枠であることにより、トンネル内などの狭
い工事現場にあってもロープ状に曲げて搬入することが
可能となり、かつ削孔内への挿入も折り曲げながら挿入
することが可能となる。また、硬化材充填型枠による硬
化材の充填により削孔内に密着した強固な構造物を形成
することが可能となる。As described above, according to the hardening material-filled formwork to which the present invention is applied, since it is a flexible formwork having flexibility and bendability, it can be used in a narrow construction site such as in a tunnel. Even if there is, it becomes possible to bend it into a rope and carry it in, and it is also possible to insert it into the drilled hole while bending it. Further, by filling the hardening material with the hardening material filling mold, it is possible to form a strong structure that is in close contact with the inside of the drilled hole.
【図１】本発明を適用した硬化材充填型枠の一例を示す
ための断面説明図である。FIG. 1 is a cross-sectional explanatory view showing an example of a hardening material-filled formwork to which the present invention is applied.
【図２】本発明を適用した硬化材充填型枠の連結用カッ
プラーによる連結機構の一例を示す説明図である。FIG. 2 is an explanatory view showing an example of a connecting mechanism by a connecting coupler of a hardening material-filled formwork to which the present invention is applied.
【図３】本発明を適用した硬化材充填型枠の配筋用スペ
ーサーの一例を示す説明図である。FIG. 3 is an explanatory diagram showing an example of a reinforcing bar spacer of a hardening material-filled formwork to which the present invention is applied.
【図４】本発明を適用した硬化材充填型枠の連結用カッ
プラーの一例を示す正面説明図である。FIG. 4 is an explanatory front view showing an example of a coupler for connecting a hardening material-filled mold to which the present invention is applied.
【図５】本発明を適用した硬化材充填型枠の硬化材注入
ホースの一例を示す断面説明図である。FIG. 5 is a cross-sectional explanatory view showing an example of a hardening material injection hose of a hardening material-filled mold to which the present invention is applied.
【図６】本発明を適用した硬化材充填型枠を連結した状
態を示す説明図である。FIG. 6 is an explanatory view showing a state where the hardening material-filled molds to which the present invention is applied are connected.
【図７】本発明を適用した硬化材充填型枠による硬化材
の充填方法の一例を説明するための第１工程による説明
図である。FIG. 7 is an explanatory diagram of a first step for explaining an example of a method of filling a hardening material with a hardening material filling form to which the present invention is applied.
【図８】本発明を適用した硬化材充填型枠による硬化材
の充填方法の一例を説明するための第２工程による説明
図である。FIG. 8 is an explanatory diagram of a second step for explaining an example of a method of filling a hardening material with a hardening material filling form to which the present invention is applied.
【図９】本発明を適用した硬化材充填型枠による硬化材
の充填状態を示す断面説明図である。FIG. 9 is a cross-sectional explanatory view showing a filling state of the hardening material by the hardening material-filled formwork to which the present invention is applied.
【図１０】本発明を適用した硬化材充填型枠による硬化
材の充填方法の他の例を説明するための説明図である。FIG. 10 is an explanatory diagram for explaining another example of the method for filling the hardening material with the hardening material-filling form to which the present invention is applied.
【図１１】パイプルーフ工法におけるパイプの設置例を
示す説明図である。FIG. 11 is an explanatory view showing an installation example of pipes in the pipe roof construction method.
【図１２】パイプルーフ工法におけるパイプの他の設置
例を示す説明図である。FIG. 12 is an explanatory view showing another example of installation of pipes in the pipe roof construction method.
１ 硬化材充填型枠 ２ 筒体 ３ 連結用カップラー ４ 配筋用芯材 ５ 配筋用スペーサー ６ 硬化材注入ホース ７ ネジ部 ８ 連結リング ９ 配筋用芯材係留用溝部 １０ 注入ホース挿通用穴部 １１ 硬化材噴出穴部 １２ 逆止弁 １３ 圧着グリップ １４ ドリルパイプ １５ 削孔 １６ 供給ホース １７ 硬化材 1 Hardener filling formwork 2 cylinders 3 Coupler for connection 4 Core material for bar arrangement 5 Rebar spacer 6 Hardener injection hose 7 screw part 8 connecting ring 9 Reinforcing core material groove for mooring 10 Injection hose insertion hole 11 Hardened material ejection hole 12 Check valve 13 Crimping grip 14 drill pipe 15 Drilling 16 Supply hose 17 Curing material
Claims (9)
型枠内に配置される少なくとも１の配筋用スペーサー
と、該配筋用スペーサーによって配置される複数の配筋
用芯材とを備えることを特徴とする硬化材充填型枠。1. A hollow form frame made of a flexible material, at least one rebar spacer arranged in the form frame, and a plurality of rebar cores arranged by the rebar spacers. A hardened material-filled formwork comprising a material.
ことを特徴とする請求項１記載の硬化材充填型枠。2. The hardening material-filled mold according to claim 1, wherein the molding material expands by injecting a hardening material.
たことを特徴とする請求項１又は２記載の硬化材充填型
枠。3. The hardening material-filled mold according to claim 1, wherein a hardening material injection hose is provided in the mold.
袋体の少なくとも一端側に配置される連結用カップラー
と、該袋体内に配置される少なくとも１の配筋用スペー
サーと、該配筋用スペーサーによって配置される複数の
配筋用芯材とを備えることを特徴とする硬化材充填型
枠。4. A hollow form frame made of a flexible material, a coupling coupler arranged on at least one end side of the bag body, and at least one reinforcing bar spacer arranged in the bag body. A hardening material-filled form, comprising a plurality of reinforcing bar core materials arranged by the reinforcing bar spacers.
ことを特徴とする請求項４記載の硬化材充填型枠。5. The hardener-filled mold according to claim 4, wherein the mold is expanded by injecting a hardener.
たことを特徴とする請求項４又は５記載の硬化材充填型
枠。6. A hardening material-filled mold according to claim 4, wherein a hardening material injection hose is provided in the mold.
型枠内に配置される少なくとも１の配筋用スペーサー
と、該配筋用スペーサーによって配置される複数の配筋
用芯材とを備える硬化材充填型枠を用いた硬化材の充填
方法であって、地山に形成された穴に、硬化材充填型枠
を挿入する工程と、該袋体内に硬化材を注入する工程と
を備える硬化材の充填方法。7. A hollow form frame made of a flexible material, at least one reinforcing bar spacer arranged in the mold frame, and a plurality of reinforcing bar cores arranged by the reinforcing bar spacers. A method of filling a hardening material using a hardening material-filled mold comprising a hardening material, the step of inserting the hardening material-filled mold into a hole formed in the ground, and injecting the hardening material into the bag body. And a step of filling the hardened material.
請求項７記載の硬化材の充填方法。8. The method of filling a hardening material according to claim 7, wherein the mold is expanded by injecting the hardening material.
化材充填型枠を適宜手段によって連結し挿入する請求項
７又は８記載の硬化材の充填方法。9. The method of filling a hardening material according to claim 7, wherein a plurality of hardening material filling molds are connected and inserted into the holes formed in the ground by appropriate means.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002150391A JP3634820B2 (en) | 2002-05-24 | 2002-05-24 | Curing material filling mold and curing material filling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002150391A JP3634820B2 (en) | 2002-05-24 | 2002-05-24 | Curing material filling mold and curing material filling method |
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| Publication Number | Publication Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231808A (en) * | 2007-03-22 | 2008-10-02 | Kajima Corp | Reinforcing tool and natural ground reinforcing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231808A (en) * | 2007-03-22 | 2008-10-02 | Kajima Corp | Reinforcing tool and natural ground reinforcing method |
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