JPH08319792A - Burying construction method of underground construction member - Google Patents

Burying construction method of underground construction member

Info

Publication number
JPH08319792A
JPH08319792A JP14837095A JP14837095A JPH08319792A JP H08319792 A JPH08319792 A JP H08319792A JP 14837095 A JP14837095 A JP 14837095A JP 14837095 A JP14837095 A JP 14837095A JP H08319792 A JPH08319792 A JP H08319792A
Authority
JP
Japan
Prior art keywords
underground construction
construction
traction
burying
underground
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
Application number
JP14837095A
Other languages
Japanese (ja)
Other versions
JP2966765B2 (en
Inventor
Tadayoshi Ishibashi
橋 忠 良 石
Shizuo Kaneko
子 静 夫 金
Tomoyuki Matsuzawa
沢 智 之 松
Toshio Hayashi
敏 夫 林
Masaharu Saito
藤 雅 春 斎
Yoshitaka Komuro
室 好 孝 小
Original Assignee
East Japan Railway Co
東日本旅客鉄道株式会社
Tekken Constr Co Ltd
鉄建建設株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by East Japan Railway Co, 東日本旅客鉄道株式会社, Tekken Constr Co Ltd, 鉄建建設株式会社 filed Critical East Japan Railway Co
Priority to JP14837095A priority Critical patent/JP2966765B2/en
Publication of JPH08319792A publication Critical patent/JPH08319792A/en
Application granted granted Critical
Publication of JP2966765B2 publication Critical patent/JP2966765B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To reduce horizontal boring construction and lay the traction members of underground construction members easily and rationally while improving construction accuracy, installing a traction jack easily and downsizing a jack space. CONSTITUTION: Underground construction members 6, 6a, 6b... with cutting edges 19b... removably mounted on the tips and with excavating devices accommodated inside are provided and towed from a start shaft 3 to an arrival shaft 4, and the underground construction members 6, 6a, 6b... are buried parallelly in the natural ground 1. One ends of following traction members 23 are connected to the cutting edges 19b... mounted on the underground construction members 6, 6a, 6b.... The following traction members 23 are laid in the towed positions of the following towed underground construction members 6, 6a, 6b... at the time of burying the underground construction members 6, 6a, 6b....

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【産業上の利用分野】本発明は水平ボーリング工を低減
し、地下構築部材の牽引部材の敷設を簡易かつ合理的に
行なえるとともに、施工精度の向上と牽引ジャッキの簡
便な設置、並びにジャッキスペースのコンパクト化を図
れるようにした地下構築部材の埋設工法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reduces horizontal boring work, allows easy and rational laying of a tow member for an underground construction member, improves construction accuracy, and easily installs a tow jack and a jack space. It relates to a method of burying underground construction members that can be made compact.
【0002】[0002]
【従来の技術】従来、この種の工法は、例えば線路下横
断工事における非開削工法として採用され、そのなかに
フロンテジャッキング工法や、PCR(PRESTRESSED C
ONーCRETE ROOF METHOD)工法が知られている。このう
ち、フロンテジャッキング工法は、例えば特公昭51ー
22731号のように、発進立坑より到達立坑の所定の
目標位置に水平ボーリングをして地山を貫通し、そのボ
ーリング孔に牽引部材であるPC鋼線を挿入し、該鋼線
の一端を地下構造物に連結し、この他端を到達立坑に設
置した牽引ジャッキに連結し、該ジャッキの作動によっ
て、前記構造物を前方に引張り地中に引き込んで貫通さ
せていた。
2. Description of the Related Art Conventionally, this type of construction method has been adopted, for example, as a non-excavation construction method under railroad crossing construction, and the fronte jacking construction method and PCR (PRESTRESSED C
ON-CRETE ROOF METHOD) method is known. Among them, the fronte jacking method is, for example, as in Japanese Examined Patent Publication No. 51-22731, horizontal boring from a starting vertical shaft to a predetermined target position of the reaching vertical shaft to penetrate the natural ground, and a pulling member is provided in the boring hole. A PC steel wire is inserted, one end of the steel wire is connected to an underground structure, and the other end is connected to a towing jack installed in a reaching shaft, and the structure is pulled forward by the operation of the jack. I was pulling in to penetrate.
【0003】しかし、上記工法はPC鋼線の敷設毎に水
平ボーリングを要して、工事が大掛かりになり、工期増
と工費の上昇を助長する一方、刃口を地盤に貫入させな
がら掘進するため、刃口の断面形状が非常に大きく、し
たがってアンダーパスや歩道のような大規模な地下構造
物の施工に適し、小規模な地下構築部材の埋設には概し
て不向きであった。
However, the above-mentioned construction method requires horizontal boring every time a PC steel wire is laid, which requires a large amount of construction work, which contributes to an increase in construction period and an increase in construction cost. Since the blade has a very large cross-sectional shape, it was suitable for construction of large-scale underground structures such as underpasses and sidewalks, and was generally unsuitable for burying small-scale underground construction members.
【0004】また、PCR工法は特公昭55ー5055
7号のように、中心孔を有するプレキャストコンクリー
ト柱体の前端に掘削先管を接続し、上記中心孔の内部に
スクリューオーガを収容し、多数のコンクリート柱体を
予定構造物の輪郭に沿わせて地中に掘進させ、かつこれ
を発進立坑に設置した推進機により並列圧入した後、各
コンクリート柱体にPC鋼材を挿通し、これにプレスト
レスを導入するようにしていた。
Further, the PCR method is disclosed in JP-B-55-5055.
As shown in No. 7, a drill pipe is connected to the front end of a precast concrete column with a central hole, a screw auger is housed inside the central hole, and a large number of concrete columns follow the contour of the planned structure. After that, it was dug into the ground, and after it was press-fitted in parallel by a propulsion machine installed in the starting shaft, PC steel material was inserted into each concrete pillar, and prestress was introduced into this.
【0005】この工法は、小規模の地下構築部材の埋設
に適する反面、各コンクリート柱体を推進機によって圧
入するため、大規模な発進立坑を要して工事が大掛かり
になり、施工精度の維持が難しく、地盤の変状を誘発す
る、という問題があった。
This construction method is suitable for burying a small-scale underground construction member, but on the other hand, each concrete column is press-fitted by a propulsion machine, so that a large-scale starter shaft is required, which requires a large amount of construction work and maintains construction accuracy. However, there was a problem in that it caused difficult ground deformation.
【0006】[0006]
【発明が解決しようとする課題】本発明はこのような問
題を解決し、小規模な地下構築部材の埋設に好適で、水
平ボーリング工を低減し、地下構築部材の敷設を簡易か
つ合理的に行なえるとともに、施工精度の向上と牽引ジ
ャッキの簡便な設置、並びにジャッキスペースのコンパ
クト化を図れるようにした地下構築部材の埋設工法を提
供することを目的とする。
The present invention solves such a problem, is suitable for burying a small-scale underground construction member, reduces horizontal boring work, and lays an underground construction member easily and rationally. It is an object of the present invention to provide a method for burying an underground construction member, which is capable of improving construction accuracy, easily installing a towing jack, and making a jack space compact.
【0007】[0007]
【課題を解決するための手段】このため、本発明の地下
構築部材の埋設工法は、先端に刃口を着脱可能に装着
し、内部に掘削装置を収容した地下構築部材を発進立坑
から到達立坑へ牽引し、該地下構築部材を順次地山に並
列して埋設するようにした地下構築部材の埋設工法にお
いて、地下構築部材に装着した刃口に次期牽引部材の一
端を接続し、該牽引部材を上記地下構築部材の埋設時
に、次期牽引地下構築部材の牽引位置に敷設し、地下構
築部材の埋設時に次期牽引部材を敷設し、このための水
平ボーリング工を不要にして、工事の大規模化と工費の
上昇を抑制するとともに、施工精度の向上を図るように
している。本発明は、牽引部材を敷設後、該牽引部材の
一端を到達立坑側に設置した牽引ジャッキに接続し、こ
の他端を発進立坑側の次期牽引地下構築部材の刃口に接
続して、地下構築部材の埋設を能率良く行なうようにし
ている。本発明は、地山の施工基準位置のみをボーリン
グし、その掘削孔に地下構築部材の牽引部材を敷設し
て、施工基準位置に埋設する地下構築部材の施工精度を
向上するようにしている。本発明は、地下構築部材を重
心位置と略同軸方向に牽引し、地下構築部材を安定かつ
正確に牽引するようにしている。本発明は、地下構築部
材を既設の地下構築部材側に偏って牽引し、地下構築部
材を既設の地下構築部材に沿わせて正確に牽引するよう
にしている。本発明は、地下構築部材に装着した刃口
に、複数の次期牽引部材を接続し、複数の牽引部材によ
る次期埋設地下構築部材の牽引を可能にしている。本発
明は、地下構築部材に装着した刃口に、1本の次期牽引
部材を接続し、1本の牽引部材による次期埋設地下構築
部材の牽引を可能にしている。本発明は、刃口の内側に
牽引部材を配置し、牽引部材による牽引抵抗を低減する
ようにしている。本発明は、地下構築部材を複数の牽引
部材で牽引し、牽引の安定化と施工精度の向上を図るよ
うにしている。本発明は、地下構築部材を1本の牽引部
材で牽引し、牽引の簡便化と工費の低減を図るようにし
ている。本発明は、地下構築部材の刃口周面で、かつ次
期埋設地下構築部材の牽引部材と対向位置に、同数の次
期牽引部材を接続し、次期埋設地下構築部材の牽引を容
易に行なえるようにしている。本発明は、隣接する地下
構築部材の境界位置に牽引ジャッキを設置し、ジャッキ
架台やジャッキ受台の小型軽量化と、それらのスペース
のコンパクト化を図るようにしている。本発明は、地下
構築部材の後端部に反力カバーを着脱可能に装着し、該
カバーに牽引部材の一端を接続して、刃口の剛性と、刃
口と地下構築部材との連結強度の低減を図るようにして
いる。本発明は、牽引部材を接続する反力カバーの取付
枠を、既設の地下構築部材方向に斜状に形成し、牽引分
力を既設の地下構築部材方向に作用させて、地下構築部
材を正確に牽引するようにしている。
Therefore, according to the method for burying an underground construction member of the present invention, an underground construction member having a cutting edge detachably attached to the tip thereof and an excavation device accommodated therein is reached from a start shaft to a vertical shaft. In the underground construction member burying method in which the underground construction member is sequentially buried in parallel with the ground, the one end of the next-stage traction member is connected to the blade installed on the underground construction member, and the traction member When laying the above-mentioned underground construction member, lay it at the traction position of the next-stage towing underground construction member, and lay the next-stage traction member when burying the underground construction member, thus making horizontal boring work unnecessary and increasing the scale of construction In addition to suppressing the rise in construction costs, the construction accuracy is improved. The present invention, after laying a tow member, connects one end of the tow member to a tow jack installed on the reaching shaft side, and connects the other end to the blade of the next tow underground structure member on the starting shaft side, The construction members are buried efficiently. According to the present invention, only the construction reference position of the natural ground is bored, and the pulling member of the underground construction member is laid in the excavation hole to improve the construction accuracy of the underground construction member buried at the construction reference position. According to the present invention, the underground construction member is towed in a direction substantially coaxial with the position of the center of gravity, and the underground construction member is towed stably and accurately. According to the present invention, the underground construction member is towed toward the existing underground construction member side, and the underground construction member is accurately towed along the existing underground construction member. INDUSTRIAL APPLICABILITY The present invention allows a plurality of next-stage traction members to be connected to a cutting edge attached to the underground construction member, and enables the next-stage buried underground construction member to be pulled by the plurality of traction members. INDUSTRIAL APPLICABILITY According to the present invention, one next-stage traction member is connected to a blade installed in the underground construction member, and the next-stage buried underground construction member can be pulled by one traction member. According to the present invention, the pulling member is arranged inside the blade to reduce the pulling resistance of the pulling member. According to the present invention, the underground construction member is towed by a plurality of towing members to stabilize the towing and improve the construction accuracy. According to the present invention, the underground construction member is towed by one towing member, so that the towing can be simplified and the construction cost can be reduced. INDUSTRIAL APPLICABILITY The present invention connects the same number of next-stage traction members on the peripheral surface of the blade of the underground construction member and at a position facing the traction member of the next-stage underground construction member, so that the next-generation underground construction member can be easily towed. I have to. According to the present invention, a tow jack is installed at a boundary position between adjacent underground construction members so as to reduce the size and weight of the jack mount and the jack support and to make the space thereof compact. According to the present invention, a reaction force cover is detachably attached to a rear end portion of an underground construction member, and one end of a traction member is connected to the cover to provide rigidity of a blade mouth and a connection strength between the blade mouth and the underground construction member. Is being reduced. The present invention forms a mounting frame of a reaction force cover that connects a traction member in a slanted shape in the direction of an existing underground construction member, and causes a traction component force to act in the direction of the existing underground construction member to accurately measure the underground construction member. I try to pull it to.
【0008】[0008]
【作 用】請求項1の発明は、地下構築部材を施工基準
川の到達立坑から牽引し、施工精度の向上を図る。地下
構築部材に装着した刃口に次期牽引部材の一端を接続
し、該牽引部材を上記地下構築部材の埋設時に、次期牽
引地下構築部材の牽引位置に敷設して、地下構築部材の
埋設時に次期牽引部材を同時に敷設する。したがって、
このための水平ボーリング工を不要にし、工事の大規模
化と工費の上昇を抑制する。請求項2の発明は、牽引部
材を敷設後、該牽引部材の一端を到達立坑側に設置した
牽引ジャッキに接続し、この他端を発進立坑側の次期牽
引地下構築部材の刃口に接続し、地下構築部材の埋設を
能率良く行なえる。請求項3の発明は、地山の施工基準
位置のみをボーリングし、その掘削孔に地下構築部材の
牽引部材を敷設して、施工基準位置に埋設する地下構築
部材の施工精度を向上する。請求項4の発明は、地下構
築部材を重心位置と略同軸方向に牽引し、地下構築部材
を安定かつ正確に牽引する。請求項5の発明は、地下構
築部材を既設の地下構築部材側に偏って牽引し、地下構
築部材を既設の地下構築部材に沿わせて正確に牽引する
ようにしている。請求項6の発明は、地下構築部材に装
着した刃口に、複数の次期牽引部材を接続し、複数の牽
引部材による次期埋設地下構築部材の牽引を可能にす
る。請求項7の発明は、地下構築部材に装着した刃口
に、1本の次期牽引部材を接続し、1本の牽引部材によ
る次期埋設地下構築部材の牽引を可能にする。請求項8
の発明は、刃口の内側に牽引部材を配置し、牽引部材に
よる牽引抵抗を低減する。請求項9の発明は、地下構築
部材を複数の牽引部材で牽引し、牽引の安定化と施工精
度の向上を図る。請求項10の発明は、地下構築部材を
1本の牽引部材で牽引し、牽引の簡便化と工費の低減を
図れる。請求項11の発明は、地下構築部材の刃口周面
で、かつ次期埋設地下構築部材の牽引部材と対向位置
に、同数の次期牽引部材を接続し、次期埋設地下構築部
材の牽引を容易に行なえる。請求項12の発明は、隣接
する地下構築部材の境界位置に牽引ジャッキを設置し、
ジャッキ架台やジャッキ受台の小型軽量化と、それらの
スペースのコンパクト化を図れる。請求項13の発明
は、地下構築部材の後端部に反力カバーを着脱可能に装
着し、該カバーに牽引部材の一端を接続して、刃口の剛
性と、刃口と地下構築部材との連結強度の低減を図れ
る。請求項14の発明は、牽引部材を接続する反力カバ
ーの取付枠を、既設の地下構築部材方向に斜状に形成
し、牽引分力を既設の地下構築部材方向に作用させて、
地下構築部材を正確に牽引する。
[Operation] According to the invention of claim 1, the construction accuracy is improved by pulling the underground construction member from the shaft reaching the construction standard river. Connect one end of the next-stage traction member to the blade installed in the underground construction member, and lay the pulling member at the traction position of the next-stage traction underground construction member when burying the above-mentioned underground construction member, and when burying the underground construction member Tow members are laid at the same time. Therefore,
This eliminates the need for horizontal boring work and suppresses the increase in construction scale and cost. In the invention of claim 2, after laying the traction member, one end of the traction member is connected to the traction jack installed on the reaching vertical shaft side, and the other end is connected to the cutting edge of the next traction underground construction member on the starting vertical shaft side. The underground construction members can be buried efficiently. According to the invention of claim 3, only the construction reference position of the natural ground is bored, and the pulling member of the underground construction member is laid in the excavation hole to improve the construction accuracy of the underground construction member buried at the construction reference position. According to the invention of claim 4, the underground construction member is towed substantially coaxially with the position of the center of gravity, and the underground construction member is towed stably and accurately. According to the invention of claim 5, the underground construction member is biased toward the existing underground construction member side, and the underground construction member is accurately towed along the existing underground construction member. According to the invention of claim 6, a plurality of next-stage traction members are connected to the blades attached to the underground construction member, and the next-stage buried underground construction member can be pulled by the plurality of traction members. According to the invention of claim 7, one next traction member is connected to the blade installed on the underground construction member to enable traction of the next buried underground construction member by one traction member. Claim 8
According to the invention, the traction member is arranged inside the blade to reduce the traction resistance due to the traction member. According to the invention of claim 9, the underground construction member is towed by a plurality of tow members to stabilize the tow and improve the construction accuracy. According to the invention of claim 10, the underground construction member is towed by a single towing member, and the towing can be simplified and the construction cost can be reduced. According to the invention of claim 11, the same number of the next-stage traction members are connected to the peripheral surface of the blade of the underground construction member and at a position facing the traction member of the next-stage underground construction member to facilitate the traction of the next-stage underground construction member. I can do it. The invention of claim 12 installs a tow jack at a boundary position between adjacent underground construction members,
It is possible to reduce the size and weight of the jack stand and jack cradle and to make the space compact. According to a thirteenth aspect of the present invention, a reaction force cover is detachably attached to a rear end portion of the underground construction member, and one end of the traction member is connected to the cover to provide rigidity of the blade mouth, the blade mouth and the underground construction member. The connection strength of can be reduced. According to a fourteenth aspect of the present invention, the mounting frame of the reaction force cover that connects the traction members is formed obliquely in the direction of the existing underground construction member, and the traction component force acts in the direction of the existing underground construction member,
Accurately tow underground construction members.
【0009】[0009]
【実施例】以下、本発明をアンダーパスの築造に適用し
た図示実施例について説明すると、図1乃至図13にお
いて1は地面に鉄道等の地上構造物2を敷設した地山
で、該構造物2の両側に発進立坑3と到達立坑4とが掘
削され、それらの掘削面にH鋼または鋼矢板等の土留め
部材5が打ち込まれている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An illustrated embodiment in which the present invention is applied to the construction of an underpass will be described below. In FIGS. 1 to 13, reference numeral 1 is a ground where a ground structure 2 such as a railway is laid on the ground. Starting shaft 3 and reaching shaft 4 are excavated on both sides of 2, and earth retaining members 5 such as H steel or steel sheet pile are driven into the excavated surfaces.
【0010】発進立坑3は、少なくとも地下構築部材で
ある埋設管6を収容可能な広さに掘削され、到達立坑4
は少なくとも後述の水平ボーリング装置を設置可能な広
さに掘削されている。上記埋設管6は、地上構造物2の
直下に構築予定の地下構造物であるアンダーパス7の側
壁部7a,7aと、床板部7bとに並列に配置され、該
管6は実施例の場合、一辺が250mm、長さが300
0mmの正方形断面の鋼管で構成されている。
The starting shaft 3 is excavated to a size that can accommodate at least the buried pipe 6 which is an underground construction member, and the reaching shaft 4 is reached.
Has been excavated to an area where at least the horizontal boring device described below can be installed. The buried pipe 6 is arranged in parallel with the side wall portions 7a and 7a of the underpass 7 which is an underground structure to be constructed immediately below the above-ground structure 2 and the floor plate portion 7b, and the pipe 6 is the case of the embodiment. , One side is 250 mm, length is 300
It is composed of a steel pipe with a square cross section of 0 mm.
【0011】この場合、埋設管6はが正方形断面の他
に、長方形、台形、円形断面のコンクリート管や、鋼板
とコンクリートとの合成管で構成してもよい。この合成
管としては、例えば左右側壁をコンクリート製とし、そ
れらの上下面を鋼板で連結すれば、全体をコンクリート
製とした場合の強度低下と大型化を回避できるととも
に、全体を鋼板製とした場合の製造コストの上昇を回避
できる
In this case, the buried pipe 6 may be a concrete pipe having a rectangular, trapezoidal or circular cross section, or a synthetic pipe of steel plate and concrete, in addition to the square cross section. As this synthetic pipe, for example, if the left and right side walls are made of concrete and the upper and lower surfaces thereof are connected by steel plates, it is possible to avoid the decrease in strength and increase in size when the whole is made of concrete, and when the whole is made of steel plate. Can avoid rising manufacturing costs
【0012】埋設管6は、精度良く施工され他の施工基
準となる基準管6aと、該管6aを基準に施工する標準
管6b,6c,6d…とからなり、これらは実質的に同
一に構成されていて、実施例では床板部7bの略中央に
単一の基準管6aが配置され、この他の床板部7bと側
壁部7a,7aに標準管6b,6c,6d…が配置され
ている。
The buried pipe 6 is composed of a reference pipe 6a which is accurately constructed and serves as another construction standard, and standard pipes 6b, 6c, 6d which are constructed on the basis of the pipe 6a, which are substantially the same. In the embodiment, a single reference pipe 6a is arranged substantially in the center of the floor plate portion 7b, and standard pipes 6b, 6c, 6d ... Are arranged on the other floor plate portion 7b and side wall portions 7a, 7a. There is.
【0013】基準管6aと標準管6b,6c,6d…の
内部には、それらと同長の円管状のオーガー管8が固定
され、該管8の内部に掘削装置であるスクリューオーガ
ー9を着脱かつ回転可能に収容しており、該オーガー9
の基端部はオーガ管8から突出して配置され、その突出
部の先端にオーガーモータ10が装着される。また、基
準管6aと標準管6b,6c,6d…の周面には、その
管軸方向に沿って一対のガイドレール11〜18が対向
して配置され、これらはL字形状またはその対称形状の
断面形状をしていて、隣接するガイドレール11〜18
と相互に係合可能にされている。
A circular pipe-shaped auger pipe 8 having the same length as that of the reference pipe 6a and the standard pipes 6b, 6c, 6d is fixed, and a screw auger 9 as a drilling device is attached to and detached from the pipe 8. And accommodated rotatably, the auger 9
The base end portion of is disposed so as to project from the auger tube 8, and the auger motor 10 is attached to the tip of the protruding portion. Further, a pair of guide rails 11 to 18 are arranged to face each other on the peripheral surfaces of the reference pipe 6a and the standard pipes 6b, 6c, 6d, ... The guide rails 11 to 18 having the cross-sectional shape of
Are mutually engageable with each other.
【0014】この場合、ガイドレール11〜18は上記
形状の他に互いに係合可能な種々の断面形状に形成して
よく、また基準管6aや標準管6b,6c,6d…の周
面に、互いに係合可能な凹凸部を形成すれば、ガイドレ
ール11〜18を省略することができる。
In this case, the guide rails 11 to 18 may be formed into various cross-sectional shapes which can be engaged with each other in addition to the above-mentioned shapes, and the guide rails 6a and the standard tubes 6b, 6c, 6d ... The guide rails 11 to 18 can be omitted if the concavo-convex portions that can be engaged with each other are formed.
【0015】一方、基準管6aと標準管6b,6c,6
d…の先端には、それらと同形断面の略箱形をした刃口
19が着脱可能に取付けられ、該刃口19の周面に後述
の牽引部材を着脱可能に接続する第1クランパ20と、
次期牽引部材を着脱可能に接続する第2クランパ21と
が設けられている。このうち、基準管6aに取付ける刃
口19aの周面には、図3のように3個の第1クランパ
20と、4個の第2クランパ21とが設けられ、該クラ
ンパ21がガイドレール11,12の外側に配置されて
いる。
On the other hand, the reference tube 6a and the standard tubes 6b, 6c, 6
A substantially box-shaped blade opening 19 having the same cross-section as those of the blade opening 19 is detachably attached to the tip of d, and a first clamper 20 is detachably connected to the peripheral surface of the blade opening 19 to be described later. ,
A second clamper 21 that detachably connects the next traction member is provided. Of these, three first clampers 20 and four second clampers 21 are provided on the peripheral surface of the blade opening 19a attached to the reference tube 6a as shown in FIG. , 12 outside.
【0016】また、標準管6bに取付ける刃口19bの
周面には、図4のように2個の第1クランパ20と、1
個の第2クランパ21とが設けられ、このうち第1クラ
ンパ20は、刃口19aの第2クランパ21と対向位置
に設けられ、また第2クランパ21はガイドレール1
4,14間の中央に配置されている。
Further, as shown in FIG. 4, two first clampers 20 and 1 are provided on the peripheral surface of the blade opening 19b attached to the standard pipe 6b.
A second clamper 21 is provided, of which the first clamper 20 is provided at a position facing the second clamper 21 of the blade opening 19a, and the second clamper 21 is the guide rail 1
It is arranged in the center between 4 and 14.
【0017】更に、標準管6cに取付ける刃口19cの
周面には、図5のように各1個の第1および第2クラン
パ20,21が設けられ、このうち第1クランパ20
は、刃口19bの第2クランパ21と対向位置に設けら
れ、また第2クランパ21は上側のガイドレール16の
外側に配置されている。
Further, as shown in FIG. 5, each of the first and second clampers 20, 21 is provided on the peripheral surface of the blade opening 19c attached to the standard pipe 6c.
Is provided at a position facing the second clamper 21 of the blade opening 19b, and the second clamper 21 is disposed outside the upper guide rail 16.
【0018】標準管6dに取付ける刃口19dの周面に
は、図6のように各1個の第1および第2クランパ2
0,21が設けられ、このうち第1クランパ20は、刃
口19cの第2クランパ21と対向位置に設けられ、ま
た第2クランパ21はガイドレール18,18間の中央
に配置されている。
As shown in FIG. 6, one each of the first and second clampers 2 is provided on the peripheral surface of the blade opening 19d attached to the standard pipe 6d.
Nos. 0 and 21 are provided, of which the first clamper 20 is provided at a position facing the second clamper 21 of the blade opening 19c, and the second clamper 21 is disposed at the center between the guide rails 18 and 18.
【0019】これらのクランパ20,21は、PC鋼よ
り線等からなる同様な牽引部材22,23の一端を着脱
かつ固定可能に構成され、このうち第1クランパ20に
負荷下の牽引部材22の後端部が固定され、また第2ク
ランパ21に無負荷下の次期牽引部材23の前端部が固
定されていて、牽引部材22の前部側が牽引ジャッキ2
4に牽引され、次期牽引部材23の後端部が発進立坑3
側に位置している。
These clampers 20 and 21 are constructed such that one end of similar pulling members 22 and 23 made of PC steel strands or the like can be attached and detached and fixed. Of these, the first clamper 20 has a pulling member 22 under load. The rear end is fixed, the front end of the next traction member 23 under no load is fixed to the second clamper 21, and the front side of the traction member 22 is the traction jack 2.
4 and the rear end of the next traction member 23 is the starting shaft 3
Located on the side.
【0020】牽引ジャッキ24は、到達立坑4側に設置
した基準管6aまたは標準管6b,6c…用のジャッキ
架台25,26に水平に取付けられ、その前端部を各ジ
ャッキ受台27,28で支持されている。このうち、基
準管6a用のジャッキ架台25とジャッキ受台27は、
図8〜10のように基準管6aの到達位置正面に設置さ
れ、該架台25に3本の牽引ジャッキ24が取付けら
れ、その支持脚29を土留部材5に固定しており、また
ジャッキ受台27は牽引ジャッキ24を支持する2本の
載架枠30を有し、該枠30を固定した支持枠31を上
記立坑4に立設している。
The tow jack 24 is horizontally attached to the jack mounts 25 and 26 for the reference pipes 6a or the standard pipes 6b and 6c, which are installed on the side of the reaching shaft 4, and the front end portions thereof are respectively attached to the jack receiving bases 27 and 28. It is supported. Of these, the jack mount 25 and the jack support 27 for the reference tube 6a are
As shown in FIGS. 8 to 10, it is installed in front of the arrival position of the reference pipe 6a, three tow jacks 24 are attached to the pedestal 25, and its supporting legs 29 are fixed to the soil retaining member 5, and the jack receiving stand. Reference numeral 27 has two mounting frames 30 for supporting the tow jack 24, and a support frame 31 to which the frames 30 are fixed is erected on the shaft 4.
【0021】また、標準管6b,6c…用のジャッキ架
台26とジャッキ受台28は、図12〜13のように標
準管6b,6c…の到達位置の端部側に偏って設置さ
れ、上記架台26に2本または1本の牽引ジャッキ24
が取付けられ、その支持脚32を土留部材5に固定して
おり、またジャッキ受台28は牽引ジャッキ24を支持
する2本または1本の載架枠33を有し、該枠33を固
定した支持枠34を到達立坑4に立設している。
Further, the jack mounts 26 and the jack receiving bases 28 for the standard tubes 6b, 6c ... Are installed so as to be biased toward the ends of the standard tubes 6b, 6c ... As shown in FIGS. Two or one towing jacks 24 on the base 26
Is attached to the soil retaining member 5, and the jack receiving base 28 has two or one mounting frames 33 for supporting the towing jacks 24, and the frame 33 is fixed. The support frame 34 is erected on the reaching shaft 4.
【0022】図中、35は基準管6aの埋設位置を水平
ボーリング装置(図示略)で掘削した掘削孔で、発進立
坑3と到達立坑4に連通しており、該孔35に牽引部材
22を挿通可能にしている。36はアンダーパス7の出
入口部に立設した橋台で、内部に側壁部7aの埋設管6
の端部を埋設しており、この橋台36,36の上端間に
主桁37を架設し、橋台36,36の下端間に路床38
を敷設していて、該路床38上に舗装部39を敷設して
いる。
In the figure, reference numeral 35 denotes an excavation hole obtained by excavating the buried position of the reference pipe 6a with a horizontal boring device (not shown), which communicates with the starting shaft 3 and the reaching shaft 4, and the traction member 22 is connected to the hole 35. It can be inserted. Reference numeral 36 denotes an abutment standing upright at the entrance / exit of the underpass 7, and the buried pipe 6 of the side wall 7a is internally provided.
The main girder 37 is installed between the upper ends of the abutments 36, 36, and the roadbed 38 is provided between the lower ends of the abutments 36, 36.
And a pavement portion 39 is laid on the roadbed 38.
【0023】図14乃至図20は本発明の他の実施例を
示し、前述の実施例の構成と対応する部分には同一の符
号を用いている。このうち、図14乃至図18は本発明
の第2実施例を示し、この実施例では刃口19に牽引部
材22の一端を接続して埋設管6を牽引する代わりに、
該管6の後端部に箱形の反力カバー40,41を着脱可
能に装着し、該カバー40,41に牽引部材22の一端
を連結して、埋設管6を牽引するようにしている。
14 to 20 show another embodiment of the present invention, and the same reference numerals are used for the portions corresponding to the configurations of the above-mentioned embodiments. 14 to 18 show a second embodiment of the present invention. In this embodiment, instead of connecting one end of the pulling member 22 to the blade opening 19 and pulling the embedded pipe 6,
Box-shaped reaction force covers 40 and 41 are detachably attached to the rear end of the pipe 6, and one end of a pulling member 22 is connected to the covers 40 and 41 to pull the embedded pipe 6. .
【0024】このうち、反力カバー40は基準管6aの
後端部に装着され、その状況は図15のようで、ガイド
レール11,12の外側に着脱可能に嵌め込まれ、その
中間部内面に基準管6aの後端部と係合可能な掛止片4
2を突設している。反力カバー40の後端部には取付枠
43が設けられ、該枠43は基準管6aの軸方向と直交
して配置され、該枠43の外側に複数のクランパ44を
突設している。なお、取付枠43の所定位置には、次期
牽引部材を引き出す単数または複数の通孔(図示略)が
形成されている。
Of these, the reaction force cover 40 is attached to the rear end portion of the reference tube 6a, and the situation is as shown in FIG. 15, and it is detachably fitted to the outside of the guide rails 11 and 12, and is attached to the inner surface of the intermediate portion thereof. Latching piece 4 engageable with the rear end of the reference tube 6a
2 is protruding. A mounting frame 43 is provided at the rear end of the reaction force cover 40, the frame 43 is arranged orthogonal to the axial direction of the reference tube 6a, and a plurality of clampers 44 are provided on the outside of the frame 43 in a protruding manner. . It should be noted that at a predetermined position of the mounting frame 43, a single or a plurality of through holes (not shown) for drawing out the next traction member are formed.
【0025】クランパ44は牽引ジャッキ24と同数設
けられ、かつそれらは上記ジャッキ24と同軸上に配置
されていて、これらに牽引部材22の一端を連結してい
る。
The clampers 44 are provided in the same number as the pulling jacks 24, and they are arranged coaxially with the jacks 24, and one end of the pulling member 22 is connected to these.
【0026】上記反力カバー40は、基準管6aの牽引
前に発進立坑3側で装着され、図14のように複数の基
準管6aを順次牽引する場合は、基準管6aの牽引終期
に反力カバー40を取外し、該管6aの後端に次の基準
管6aを接続後、当該基準管6aの後端に装着する。
The reaction force cover 40 is mounted on the starting shaft 3 side before the reference pipe 6a is pulled, and when a plurality of reference pipes 6a are sequentially pulled as shown in FIG. The force cover 40 is removed, the next reference pipe 6a is connected to the rear end of the pipe 6a, and then attached to the rear end of the reference pipe 6a.
【0027】この場合、反力カバー40は、基準管6a
に着脱自在に嵌合しているから、それらの脱着作業を簡
易かつ迅速に行なえる。その際、各牽引ジャッキ24に
よる牽引部材22の保持作用を一旦解除し、牽引部材2
2の長さを前記接続した基準管6aの長さ分引き伸ば
し、前記カバー40を装着後、各牽引部材22を牽引ジ
ャッキ24に固定する。
In this case, the reaction force cover 40 includes the reference tube 6a.
Since they are removably fitted to each other, they can be attached and detached easily and quickly. At that time, the holding action of each of the pulling jacks 24 on the pulling member 22 is temporarily released, and the pulling member 2 is released.
The length of 2 is extended by the length of the connected reference tube 6a, the cover 40 is mounted, and each pulling member 22 is fixed to the pulling jack 24.
【0028】基準管6aの牽引時には、オーガースクリ
ュー9を駆動し、地山1を掘削するとともに、牽引ジャ
ッキ24を作動して牽引部材22を引張り、該部材22
に接続した反力カバー40を引き寄せ、該カバー40を
装着した基準管6aを後方から押し動かす。
When the reference pipe 6a is towed, the auger screw 9 is driven to excavate the natural ground 1, and the tow jack 24 is operated to pull the tow member 22.
The reaction force cover 40 connected to is pulled toward and the reference tube 6a equipped with the cover 40 is pushed from behind.
【0029】その際、取付枠43には各牽引部材22に
よる同大の牽引力が同方向、つまり牽引部材22と同軸
方向に作用し、また上記枠43が牽引方向と直交配置さ
れているから、それらの合力が複数のクランパ44の位
置中央、つまり基準管6aの略重心位置に作用し、該管
6aの正確な牽引を促す。また、反力カバー40によっ
て基準管6aを牽引しているから、従来のような刃口に
よる牽引法に比べて、刃口19aの剛性や、刃口と基準
管6aとの強固な連結を要せず、これらを安価に製造し
得る。
At this time, the same traction force of each traction member 22 acts on the mounting frame 43 in the same direction, that is, in the coaxial direction with the traction member 22, and the frame 43 is arranged orthogonal to the traction direction. The resultant force acts on the center of the positions of the plurality of clampers 44, that is, the approximate center of gravity of the reference tube 6a, and promotes accurate pulling of the tubes 6a. Further, since the reference tube 6a is pulled by the reaction force cover 40, rigidity of the blade opening 19a and firm connection between the blade opening and the reference tube 6a are required as compared with the conventional pulling method by the blade opening. Without these, these can be manufactured at low cost.
【0030】一方、反力カバー41は標準管6b,6c
…の後端部に装着され、その状況は図16および図18
のようで、前述と同様にガイドレール13〜18の外側
に着脱可能に嵌め込まれ、その中間部内面に標準管6
b,6c…の後端部に係合可能な掛止片42を突設して
いる。反力カバー41の後端部には取付枠43が設けら
れ、該枠43は既設の埋設管標6側に斜状に形成され、
該枠43の外側にクランパ44を突設している。なお、
取付枠43の所定位置には、次期牽引部材を引き出す単
数または複数の通孔(図示略)が形成されている。
On the other hand, the reaction force cover 41 includes the standard tubes 6b and 6c.
... is attached to the rear end, and the situation is shown in FIGS.
As described above, the guide pipes 13 to 18 are detachably fitted to the outer side of the guide rails 13 to 18, and the standard pipe 6 is attached to the inner surface of the middle portion thereof.
Hooking pieces 42 engageable with the rear ends of the b, 6c ... A mounting frame 43 is provided at the rear end of the reaction force cover 41, and the frame 43 is formed in a slanted shape on the side of the existing embedded marker 6,
A clamper 44 is projectingly provided on the outside of the frame 43. In addition,
At a predetermined position of the mounting frame 43, a single or a plurality of through holes (not shown) for drawing out the next traction member are formed.
【0031】クランパ44は牽引ジャッキ24と同数設
けられ、かつそれらは上記ジャッキ24と同軸上、つま
り取付枠43の片側に偏って配置され、これらに牽引部
材22の一端を接続している。
The clampers 44 are provided in the same number as the pulling jacks 24, and they are arranged coaxially with the jacks 24, that is, arranged on one side of the mounting frame 43, and connect one end of the pulling member 22 to these.
【0032】上記反力カバー41は、標準管6b,6c
…の牽引前に発進立坑3側で装着され、図16のように
複数の標準管6bを順次牽引する場合は、基準管6aの
牽引終期に前記カバー41を取外し、該管6bの後端に
次の標準管6bを接続後、当該標準管6bの後端に装着
する。この場合、反力カバー41は、標準管6bに着脱
自在に嵌合しているから、それらの脱着作業を簡易かつ
迅速に行なえる。その際、各牽引ジャッキ24による牽
引部材22の接続を一旦解除し、牽引部材22の長さを
接続した標準管6bの長さ分引き伸ばし、前記カバー4
1を装着後、各牽引部材22を牽引ジャッキ24に接続
する。
The reaction force cover 41 includes the standard tubes 6b and 6c.
When the plurality of standard pipes 6b are towed sequentially as shown in Fig. 16 when mounted on the starting shaft 3 side before the pulling of ..., the cover 41 is removed at the end of the pulling of the reference pipe 6a and the rear end of the pipe 6b is removed. After connecting the next standard tube 6b, it is attached to the rear end of the standard tube 6b. In this case, since the reaction force cover 41 is detachably fitted to the standard pipe 6b, the attachment / detachment work thereof can be performed easily and quickly. At that time, the connection of the pulling member 22 by each pulling jack 24 is once released, and the length of the pulling member 22 is extended by the length of the connected standard pipe 6b, and the cover 4 is removed.
After mounting 1, the pulling members 22 are connected to the pulling jacks 24.
【0033】標準管6b,6c…の牽引は、基準管6a
と同様に行なわれる。その際、牽引部材22の接続位置
は取付枠43の片側に偏り、かつ該枠43が既設の埋設
管6、図16では基準管6a側に斜状に形成されている
から、牽引部材22による牽引力の合力Pは、図18の
ように枠43の片側に偏り、かつその分力Pa ,Pb は
同図のように作用する。
The standard tubes 6b, 6c ... Are pulled by the reference tube 6a.
The same is done as. At that time, the connection position of the pulling member 22 is biased to one side of the mounting frame 43, and the frame 43 is formed obliquely to the existing embedded pipe 6, that is, the reference pipe 6a side in FIG. The resultant force P of the traction force is biased to one side of the frame 43 as shown in FIG. 18, and the component forces Pa and Pb act as shown in FIG.
【0034】このうち、一方の分力Pa は、隣接する既
設の埋設管6、図18の場合は基準管6a(標準管6c
の牽引時には標準管6b)側に作用し、標準管6b,6
c…を既設の埋設管6側へ押し寄せて牽引するから、ガ
イドレール12〜18が緊密に係合し、該レール12〜
18に沿って標準管6b,6c…を正確かつ円滑に牽引
する。したがって、ガイドレール12〜18の緊密分、
それらに填充する後述の填充材の消費を節減し得る。
Among these, one component force Pa is the existing buried pipe 6 adjacent to it, and in the case of FIG. 18, the reference pipe 6a (standard pipe 6c).
Of the standard pipes 6b, 6
Since c ... is pushed toward the existing buried pipe 6 side and pulled, the guide rails 12 to 18 are tightly engaged, and the rails 12 to
Accurately and smoothly pull the standard tubes 6b, 6c ... Therefore, the tightness of the guide rails 12 to 18,
It is possible to save the consumption of the below-mentioned filling material filling them.
【0035】図19は本発明の第3実施例を示し、刃口
19の外側に牽引部材22,23を連結する第1および
第2クランパ20,21を設ける代わりに、上記クラン
パ20を刃口19の内側に配置し、該クランパ20およ
び牽引部材22,23の地山1内での牽引抵抗を低減す
るようにしている。
FIG. 19 shows a third embodiment of the present invention. Instead of providing the first and second clampers 20 and 21 for connecting the pulling members 22 and 23 to the outside of the blade edge 19, the clamper 20 is connected to the blade edge. It is arranged inside 19 to reduce the pulling resistance of the clamper 20 and the pulling members 22 and 23 in the natural ground 1.
【0036】図20は本発明の第3実施例を示し、ジャ
ッキ架台25,26の両端を支持脚29,32で支持す
る代わりに、上記架台25,26を既設の埋設管6a,
6b,6c…の端部に係合し、これらの係合部をジャッ
キ反力の支持部材に充当して、片側の支持脚29,32
の省略分、構成を簡潔にするとともに、ジャッキ反力支
持の安定化を図るようにしている。
FIG. 20 shows a third embodiment of the present invention. Instead of supporting both ends of the jack mounts 25, 26 with support legs 29, 32, the mounts 25, 26 are installed in the existing buried pipe 6a,
6b, 6c ... Engage with the end portions of the support legs 29, 32 on one side by applying these engaging portions to a supporting member for jack reaction force.
Is omitted, the structure is simplified and the support of the jack reaction force is stabilized.
【0037】すなわち、図20において標準管6bが到
達立坑4に到達すると、上記管6bの端部をジャッキ架
台25,26に係合させ、一方、前記架台25,26の
端部を図上下方へ延設し、この延設部に牽引ジャッキ2
4を取付ける。したがって、埋設管6の埋設毎に上記架
台25,26を延設し、これに既設分の埋設管6の端部
を係合させて、ジャッキ反力を安定して支持するように
している。
That is, when the standard pipe 6b reaches the reaching shaft 4 in FIG. 20, the ends of the pipe 6b are engaged with the jack mounts 25 and 26, while the ends of the mounts 25 and 26 are moved downward in the drawing. To the tow jack 2
Install 4. Therefore, the mounts 25 and 26 are extended each time the buried pipe 6 is buried, and the ends of the existing buried pipe 6 are engaged with the mounts 25 and 26 to stably support the jack reaction force.
【0038】このように構成した地下構築部材の埋設工
法よって、地上構造物2の直下にアンダーパス7を設置
する場合、上記構造物2の両側の所定位置に発進立坑3
と到達立坑4を掘削し、それらの掘削面に土留部材5を
設置する。
When the underpass 7 is installed just below the above-ground structure 2 by the underground construction member burying method thus constructed, the starting shafts 3 are provided at predetermined positions on both sides of the above-mentioned structure 2.
And the reaching shaft 4 is excavated, and the earth retaining member 5 is installed on the excavated surface.
【0039】この後、到達立坑4に水平ボーリング用作
業台(図示略)を架設し、該台に水平ボーリング装置
(図示略)を設置し、該装置を介して到達立坑4から発
進立坑3に向けて、基準管6a埋設予定位置を水平にボ
ーリングし、その掘削孔35に牽引部材22を貫通させ
る。実施例では、アンダーパス7の床板部7bの築造予
定位置中央を牽引部材22の個数分、つまり3個水平ボ
ーリングし、かつこれらの掘削孔35を基準管6aの第
1クランパ20の貫入位置と同相位置に配置する。
After this, a horizontal boring work table (not shown) is erected on the reaching shaft 4, a horizontal boring device (not shown) is installed on the table, and from the reaching shaft 4 to the starting shaft 3 via the device. Toward, the planned buried position of the reference pipe 6a is bored horizontally, and the traction member 22 is passed through the excavation hole 35. In the embodiment, the center of the planned construction position of the floor plate portion 7b of the underpass 7 is horizontally bored by the number of the pulling members 22, that is, three horizontal borings, and these drill holes 35 are defined as the penetration positions of the first clamper 20 of the reference pipe 6a. Place in in-phase position.
【0040】また、上記水平ボーリング工と前後して、
到達立坑4の基準管6aの到達位置正面にジャッキ架台
25とジャッキ受台27とを設置し、該架台25に複数
の牽引ジャッキ24を取付け、該ジャッキ24に前記貫
通した牽引部材22の一端を接続する。
Before and after the horizontal boring work,
A jack stand 25 and a jack receiving stand 27 are installed in front of the reaching position of the reference pipe 6a of the reaching shaft 4 and a plurality of pulling jacks 24 are attached to the stand 25, and one end of the penetrating pulling member 22 is attached to the jack 24. Connecting.
【0041】一方、発進立坑3に基準管6aを搬入し、
該管6aのオーガー管8にスクリューオーガー9を挿入
して組み付け、基準管6aの先端に刃口19aを取付け
る。そして、牽引部材22の他端を同相の第1クランパ
20に連結し、次期牽引部材23の前端部を刃口19a
の第2クランパ21に接続したところで、刃口19aを
その貫入位置に向け、基準管6aを発進架台(図示略)
上に移載する。
On the other hand, the reference pipe 6a is carried into the starting shaft 3,
The screw auger 9 is inserted into the auger tube 8 of the tube 6a and assembled, and the blade opening 19a is attached to the tip of the reference tube 6a. Then, the other end of the pulling member 22 is connected to the first clamper 20 of the same phase, and the front end of the next pulling member 23 is connected to the blade opening 19a.
When it is connected to the second clamper 21, the blade edge 19a is directed to the penetrating position, and the reference tube 6a is moved to a starting frame (not shown).
Reprinted above.
【0042】この後、スクリューオーガー9を駆動し、
地山1を掘削して、掘削土砂を発進立坑3側へ排出する
とともに、牽引ジャッキ24を伸長作動し、牽引部材2
2を到達立坑4方向へ引張り、該部材22の他端に接続
した基準管6aを牽引する。このようにすると、基準管
6aが牽引部材22に導かれて地山1内を移動し、また
次期牽引部材23が刃口19aに引かれて、地山1内を
基準管6aと一体に移動する。
After that, the screw auger 9 is driven,
The ground 1 is excavated, the excavated earth and sand are discharged to the starting shaft 3 side, the towing jack 24 is extended, and the towing member 2
2 is pulled toward the reaching shaft 4 and the reference tube 6a connected to the other end of the member 22 is pulled. In this way, the reference pipe 6a is guided by the pulling member 22 to move inside the ground 1, and the next pulling member 23 is pulled by the blade 19a to move inside the ground 1 together with the reference pipe 6a. To do.
【0043】この場合、牽引部材22は掘削孔35に沿
って基準管6aを牽引し、また各牽引部材22による牽
引力の合力は、基準管6aの略重心位置に作用するか
ら、基準管6aを正確かつ安定して牽引するとともに、
各次期牽引部材23を基準管6aの周面またはガイドレ
ール11,12に沿わせて、安定して牽引する。しか
も、基準管6aを施工基準である到達立坑4側から牽引
しているから、これを発進立坑3側から推進する方法に
比べて、基準管6aの移動位置の正確性を得られ、その
分施工精度が向上する。なお、アンダーパス7の長さが
長い場合は、複数の基準管6aとスクリューオーガー9
を用い、これらを発進立坑3側で順次継ぎ足して対応す
る。
In this case, the pulling member 22 pulls the reference pipe 6a along the excavation hole 35, and the resultant force of the pulling forces by the respective pulling members 22 acts on the approximate center of gravity of the reference pipe 6a. With accurate and stable towing,
Each next-stage traction member 23 is stably pulled along the peripheral surface of the reference tube 6a or the guide rails 11 and 12. Moreover, since the reference pipe 6a is pulled from the reaching shaft 4 side which is the construction reference, the accuracy of the moving position of the reference pipe 6a can be obtained compared to the method of propelling the reference pipe 6a from the starting shaft 3 side. Construction accuracy is improved. When the length of the underpass 7 is long, the plurality of reference tubes 6a and the screw auger 9 are
, And these are sequentially added on the side of the starting shaft 3 to respond.
【0044】そして、基準管6aが到達立坑4に到達
し、刃口19aが到達立坑4側に完全に抜け出たところ
で、牽引ジャッキ24とスクリューオーガー9の作動を
停止し、刃口19aに接続した牽引部材22を第1クラ
ンパ20から取外し、これを撤去するとともに、次期牽
引部材23を第2クランパ20から取外し、当該状態を
保持する。また、刃口19aとスクリューオーガー9を
基準管6aから取外し、牽引ジャッキ24をジャッキ架
台25から取外して、ジャッキ架台25とジャッキ受台
27を撤去する。
Then, when the reference pipe 6a reaches the reaching shaft 4 and the blade opening 19a completely comes out to the reaching shaft 4, the operation of the towing jack 24 and the screw auger 9 is stopped and the blade is connected to the blade opening 19a. The traction member 22 is removed from the first clamper 20 and is removed, and the next-stage traction member 23 is removed from the second clamper 20 to maintain the state. Further, the blade opening 19a and the screw auger 9 are removed from the reference tube 6a, the towing jack 24 is removed from the jack mount 25, and the jack mount 25 and the jack support 27 are removed.
【0045】これらの撤去後の状況は図11のようで、
基準管6aの両端部が発進立坑3と到達立坑4とに突出
し、該管6aと一体のガイドレール11,12も上記立
坑3,4から突出しており、これらガイドレール11,
12の外周に沿って、次期牽引部材23が敷設され、そ
の両端が基準管6aの両端から突出している。
The situation after the removal is as shown in FIG.
Both ends of the reference pipe 6a project to the starting shaft 3 and the reaching shaft 4, and the guide rails 11 and 12 integrated with the pipe 6a also project from the shafts 3 and 4, and these guide rails 11 and
Next traction member 23 is laid along the outer circumference of 12, and both ends thereof project from both ends of reference tube 6a.
【0046】このような状況の下で、到達立坑4の標準
管6b到達位置の一側、つまり隣接する基準管6aと標
準管6bとの境界位置に、ジャッキ架台26とジャッキ
受台28とを図12および図13のように設置し、該架
台26に標準管6b側に敷設した次期牽引部材23と同
数、実施例では2本の牽引ジャッキ24を標準管6bの
第1クランパ20,20と同位置に取付け、これらに前
記敷設した牽引部材23の一端を接続する。
Under such a circumstance, the jack mount 26 and the jack pedestal 28 are provided at one side of the arrival position of the standard pipe 6b of the reaching shaft 4, that is, at the boundary position between the adjacent reference pipe 6a and standard pipe 6b. 12 and 13, the same number as the next-stage traction member 23 laid on the pedestal 26 on the side of the standard pipe 6b, in the embodiment, two traction jacks 24 and the first clampers 20, 20 of the standard pipe 6b. It is attached at the same position, and one end of the laid traction member 23 is connected to these.
【0047】この場合、牽引ジャッキ24は図12,1
3のように平面上同位置に配置されるから、これらを上
下左右に分散して配置する前記ジャッキ架台25とジャ
ッキ受台27に比べて、それらの小型軽量化と構成の簡
潔化を図れ、しかもその設置スペースのコンパクト化を
図れる。
In this case, the towing jack 24 is shown in FIGS.
Since they are arranged at the same position on the plane as shown in FIG. 3, they can be reduced in size and weight and the configuration can be simplified as compared with the jack rack 25 and the jack receiving stand 27 in which they are dispersed vertically and horizontally. Moreover, the installation space can be made compact.
【0048】一方、発進立坑3に標準管6b,6c,6
d…を搬入し、該管6bのオーガー管8にスクリューオ
ーガー9を挿入して組み付け、更に標準管6bの先端に
刃口19bを取付ける。そして、前記敷設した牽引部材
23(22)の他端を同相の第1クランパ20に連結
し、かつ次期牽引部材23の前端部を刃口19bの第2
クランパ21に接続したところで、刃口19bを貫入位
置に向け、標準管6bを発進架台(図示略)上に移載す
る。
On the other hand, standard tubes 6b, 6c, 6 are provided in the starting shaft 3.
d ... is carried in, the screw auger 9 is inserted into the auger pipe 8 of the pipe 6b and assembled, and the blade end 19b is attached to the tip of the standard pipe 6b. Then, the other end of the laid traction member 23 (22) is connected to the first clamper 20 of the same phase, and the front end of the next traction member 23 is connected to the second edge of the blade opening 19b.
When connected to the clamper 21, the blade 19b is directed to the penetrating position, and the standard tube 6b is transferred onto a starting frame (not shown).
【0049】この後、スクリューオーガー9を駆動し、
地山1を掘削して、掘削土砂を発進立坑3側へ排出する
とともに、牽引ジャッキ24を伸長作動し、牽引部材2
3を到達立坑4方向へ引張り、該部材23の他端に接続
した標準管6bを刃口19bを介して牽引する。
After that, the screw auger 9 is driven,
The ground 1 is excavated, the excavated earth and sand are discharged to the starting shaft 3 side, the towing jack 24 is extended, and the towing member 2
3 is pulled in the direction of the reaching shaft 4 and the standard pipe 6b connected to the other end of the member 23 is pulled through the blade opening 19b.
【0050】このようにすると、標準管6bが牽引部材
23に導かれて地山1内を移動し、該部材22の反対側
では次期牽引部材23が刃口19bに引かれて、地山1
内を基準管6bと一体に移動する。そして、刃口19b
が地山1に貫入し終えると、ガイドレール13,13が
基準管6aのガイドレール12,12に係合し、以後そ
れらの係合関係を維持して標準管6bが牽引される。な
お、アンダーパス7の長尺の場合、図11のように複数
の標準管6bとスクリューオーガー9を用い、これらを
発進立坑3側で順次継ぎ足して対応する。
In this way, the standard pipe 6b is guided by the traction member 23 to move inside the ground 1, and on the opposite side of the member 22, the next traction member 23 is pulled by the blade 19b, and the ground 1
The inside moves integrally with the reference tube 6b. And the blade 19b
After completing the penetration into the ground 1, the guide rails 13 and 13 engage with the guide rails 12 and 12 of the reference pipe 6a, and thereafter, the standard pipe 6b is pulled while maintaining their engagement relationship. In the case of a long underpass 7, as shown in FIG. 11, a plurality of standard tubes 6b and screw augers 9 are used, and these are successively added on the side of the starting shaft 3 to deal with them.
【0051】この場合、標準管6bは、その重心位置よ
り偏心位置で牽引されるから、重心位置で牽引する場合
に比べて、標準管6bの移動が若干不安定になることが
予想されるが、前記ガイドレール12,13によって揺
動を規制されているから、施工上支障はない。むしろ、
上記のように牽引することで、標準管6bが基準管6a
側へ誘導され、それらの近接配置を促すから、隣接する
埋設管6の緊密化とそれらの配置のバラツキを抑制し
て、埋設管6を整然と配列し施工精度の向上を図れると
ともに、ガイドレール12,13の緊密化によって、そ
れらの間を填充する填充部材の消費を節減し得る。
In this case, since the standard tube 6b is pulled at an eccentric position from its center of gravity position, the movement of the standard tube 6b is expected to be slightly unstable as compared with the case of being pulled at the center of gravity position. Since the swing is restricted by the guide rails 12 and 13, there is no problem in construction. Rather,
By pulling as described above, the standard pipe 6b becomes the reference pipe 6a.
Since the guide pipes 12 are guided to the side and promote the close placement of them, it is possible to suppress the tightness of the adjacent embedded pipes 6 and the variation in their placement, arrange the embedded pipes 6 in an orderly manner, and improve the construction accuracy, and at the same time, the guide rail 12 , 13 can reduce the consumption of the filling member filling between them.
【0052】そして、標準管6bが到達立坑4に到達
し、刃口19bが到達立坑4側に完全に抜け出たところ
で、牽引ジャッキ24とスクリューオーガー9の作動を
停止し、刃口19bに接続した牽引部材23を第1クラ
ンパ20から取外し、これを撤去するとともに、次期牽
引部材23を第2クランパ21から取外し、当該状態を
保持する。更に、刃口19bとスクリューオーガー9を
標準管6から取外し、また牽引ジャッキ24をジャッキ
架台26から取外して、ジャッキ架台26とジャッキ受
台28を撤去する。
Then, when the standard pipe 6b reaches the reaching shaft 4 and the blade opening 19b completely escapes to the reaching shaft 4, the operation of the towing jack 24 and the screw auger 9 is stopped and the blade is connected to the blade opening 19b. The traction member 23 is removed from the first clamper 20 and is removed, and the next traction member 23 is removed from the second clamper 21 to maintain the state. Further, the blade opening 19b and the screw auger 9 are removed from the standard pipe 6, the towing jack 24 is removed from the jack mount 26, and the jack mount 26 and the jack support 28 are removed.
【0053】したがって、これらの撤去後は標準管6b
の両端部が発進立坑3と到達立坑4とに突出し、該管6
bと一体のガイドレール13,14も発進立坑3と到達
立坑4とから突出し、このガイドレール14,14の間
に1本の次期牽引部材23が敷設され、その両端が標準
管6bの両端から突出する。このように、標準管6bを
施工基準である到達立坑4側から牽引しているから、こ
れを発進立坑3側から推進する方法に比べて、標準管6
bの移動位置の正確性を得られ、その分施工精度が向上
する。
Therefore, after removing these, the standard pipe 6b
Both ends of the pipe 6 project into the starting shaft 3 and the reaching shaft 4, and the pipe 6
The guide rails 13 and 14 integrated with b also project from the starting shaft 3 and the reaching shaft 4, and one next-stage traction member 23 is laid between these guide rails 14 and 14, and both ends thereof are from both ends of the standard pipe 6b. Project. In this way, since the standard pipe 6b is towed from the reaching vertical shaft 4 side which is the construction standard, the standard pipe 6b is compared with the method of propelling this from the starting vertical shaft 3 side.
The accuracy of the moving position of b can be obtained, and the construction accuracy is improved accordingly.
【0054】このような状況の下で、到達立坑4の標準
管6c到達位置の一側、つまり隣接する標準管6bと標
準管6cとの境界位置に、ジャッキ架台26とジャッキ
受台28とを前述と同様に設置し、該架台26に前記敷
設した牽引部材23と同数、実施例では1本の牽引ジャ
ッキ24を標準管6cの第1クランパ20と同位置に取
付け、これに前記敷設した牽引部材23の一端を接続す
る。
Under such a circumstance, the jack mount 26 and the jack receiving base 28 are provided on one side of the arrival position of the standard pipe 6c of the reaching shaft 4, that is, at the boundary position between the adjacent standard pipes 6b and 6c. It is installed in the same manner as described above, and the same number of traction members 23 as the laid members, in the embodiment, one traction jack 24 is attached to the mount 26 at the same position as the first clamper 20 of the standard pipe 6c, and the traction thus laid is provided. One end of the member 23 is connected.
【0055】一方、発進立坑3に搬入した標準管6cの
オーガー管8に、スクリューオーガー9を挿入して組み
付け、更に標準管6cの先端に刃口19bを取付ける。
そして、前記敷設した牽引部材23の他端を同相の第1
クランパ20に連結し、かつ敷設用の牽引部材23の前
端部を刃口19cの第2クランパ21に接続したところ
で、刃口19bを貫入位置に向け、標準管6cを発進架
台(図示略)上に移載する。
On the other hand, the screw auger 9 is inserted into the auger tube 8 of the standard tube 6c carried into the starting shaft 3 and assembled, and the blade end 19b is further attached to the tip of the standard tube 6c.
The other end of the laid traction member 23 is connected to the first in-phase
When the front end of the pulling member 23 for installation is connected to the clamper 20 and the second clamper 21 of the blade opening 19c is connected, the blade opening 19b is directed to the penetrating position, and the standard pipe 6c is placed on the starting stand (not shown). Reprinted to.
【0056】この後、スクリューオーガー9を駆動し、
地山1を掘削して、掘削土砂を発進立坑3側へ排出する
とともに、牽引ジャッキ24を伸長作動し、牽引部材2
3を到達立坑4方向へ引張り、該部材23の他端に接続
した標準管6cを刃口19cを介して牽引する。
After that, the screw auger 9 is driven,
The ground 1 is excavated, the excavated earth and sand are discharged to the starting shaft 3 side, the towing jack 24 is extended, and the towing member 2
3 is pulled in the direction of the reaching shaft 4, and the standard pipe 6c connected to the other end of the member 23 is pulled through the blade opening 19c.
【0057】このようにすると、標準管6cが牽引部材
23(22)に導かれて地山1内を移動し、また牽引部
材23の反対側では次期牽引部材23が刃口19cに引
かれて、地山1内を標準管6cと一体に移動する。そし
て、刃口19cが地山1に貫入し終えると、ガイドレー
ル15,15が標準管6bのガイドレール14,14に
係合し、以後それらの係合関係を維持して標準管6cが
移動する。
In this way, the standard pipe 6c is guided by the pulling member 23 (22) to move in the ground 1, and on the opposite side of the pulling member 23, the next pulling member 23 is pulled by the cutting edge 19c. , The ground 1 is moved integrally with the standard pipe 6c. Then, when the blade edge 19c has completely penetrated into the natural ground 1, the guide rails 15 and 15 engage with the guide rails 14 and 14 of the standard pipe 6b, and thereafter the standard pipe 6c moves while maintaining their engagement relationship. To do.
【0058】この場合、標準管6cは1本の牽引部材2
3によって牽引され、これが2本の標準管6bに比べて
移動が若干不安定になることが予想されるが、前記ガイ
ドレール14,15の係合によって、標準管6cの揺動
を規制しているから、施工上支障はなく、むしろ牽引部
材23の減少分、ジャッキ24の設置作業や牽引部材2
3の接続作業が減少して、施工が簡素になる。なお、上
記のような偏心牽引法による埋設管6の緊密化と、配置
の整列化、施工精度の向上については、標準管6bの場
合と同様である。
In this case, the standard pipe 6c is a single pulling member 2
It is expected that the standard tube 6c will be pulled by 3 and the movement thereof will be a little unstable compared to the two standard tubes 6b, but the swing of the standard tube 6c is restricted by the engagement of the guide rails 14 and 15. Since there is no hindrance in the construction, rather, the amount of reduction of the towing member 23, installation work of the jack 24 and the towing member 2
The connection work of 3 is reduced and the construction is simplified. In addition, regarding the tightness of the buried pipe 6, the alignment of the arrangement, and the improvement of the construction accuracy by the eccentric traction method as described above, they are the same as in the case of the standard pipe 6b.
【0059】このように本発明は、基準管6aの牽引時
にのみ水平ボーリングを施工し、標準管6b,6c,6
d…の牽引時には、上記ボーリングの施工を不要にした
から、大掛かりで煩雑な水平ボーリング工を最小現に留
め、工費の低減と工期の短縮を図れる。また、先行の埋
設管6の牽引時に、後行の埋設管6の牽引部材23を敷
設したから、このための水平ボーリング工が不要にな
り、この敷設作業を合理的に行なえる。
As described above, according to the present invention, the horizontal boring is applied only when the reference pipe 6a is pulled, and the standard pipes 6b, 6c, 6 are provided.
Since the boring work is not required during the towing of d ..., large-scale and complicated horizontal boring work can be minimized to reduce the construction cost and the construction period. Further, since the pulling member 23 of the trailing buried pipe 6 is laid when the leading buried pipe 6 is pulled, a horizontal boring work for this is unnecessary, and this laying work can be performed rationally.
【0060】以後、順次標準管6d…を埋設し、その埋
設を終了したところで、埋設管6,6とガイドレール1
1〜18間にモルタルおよび止水材を填充する。そし
て、アンダーパス7の出入口部に左右一対の橋台36,
36を立設し、その上部間に主桁37,37を架設後、
埋設管6と主桁37、埋設管6と橋台36とをPC鋼線
で連結し、これをジャッキで緊張してプレストレスを与
え、上載荷重と土圧を支持する。この後、埋設管6で区
画した内空断面の地山1を掘削し、掘削完了後、路床3
8および舗装部39を施工する。
Thereafter, the standard pipes 6d are sequentially buried, and when the burying is completed, the buried pipes 6 and 6 and the guide rail 1 are
Fill 1-18 with mortar and water stop material. And, a pair of left and right abutments 36 at the entrance and exit of the underpass 7,
36 is erected, and main girders 37, 37 are erected between them,
The buried pipe 6 and the main girder 37, and the buried pipe 6 and the abutment 36 are connected by a PC steel wire, which is tensioned with a jack to apply prestress to support the top load and earth pressure. After this, excavation of the ground 1 of the inner sky section divided by the buried pipe 6, and after completion of the excavation, the roadbed 3
8 and pavement 39 are constructed.
【0061】[0061]
【発明の効果】本発明の地下構築部材の埋設工法は以上
のように、地下構築部材に装着した刃口に次期牽引部材
の一端を接続し、該牽引部材を上記地下構築部材の埋設
時に、次期牽引地下構築部材の牽引位置に敷設したか
ら、地下構築部材の埋設時に次期牽引部材を同時に敷設
することができ、その合理化を図れるとともに、施工精
度を向上することができる。したがって、このための大
掛かりな水平ボーリング工が不要になり、その分工期の
短縮化と工費の低減を図ることができる。また、本発明
は、牽引部材を敷設後、該牽引部材の一端を到達立坑側
に設置した牽引ジャッキに接続し、この他端を発進立坑
側の次期牽引地下構築部材の刃口に接続したから、地下
構築部材の埋設を能率良く行なうことができる。更に、
本発明は、地山の施工基準位置のみをボーリングし、そ
の掘削孔に地下構築部材の牽引部材を敷設したから、水
平ボーリング工を最小限に留め、工費の低減を図るとと
もに、施工基準位置に埋設する地下構築部材の施工精度
を向上することができる。しかも、本発明は、地下構築
部材を重心位置と略同軸方向に牽引したから、地下構築
部材を安定かつ正確に牽引することができる。本発明
は、地下構築部材を既設の地下構築部材側に偏って牽引
したから、地下構築部材を既設の地下構築部材に沿わせ
て正確に牽引することができる。また、本発明は、地下
構築部材に装着した刃口に、複数の次期牽引部材を接続
したから、複数の牽引部材による次期埋設地下構築部材
の安定した牽引を行なうことができる。更に、本発明
は、地下構築部材に装着した刃口に、1本の次期牽引部
材を接続したから、施工が簡単な1本の牽引部材による
次期埋設地下構築部材の牽引を行なうことができる。し
かも、本発明は、刃口の内側に牽引部材を配置したか
ら、牽引部材による牽引抵抗を低減することができる。
本発明は、地下構築部材を複数の牽引部材で牽引したか
ら、牽引の安定化と施工精度の向上を図ることができ
る。また、本発明は、地下構築部材を1本の牽引部材で
牽引したから、牽引の簡便化と工費の低減を図ることが
できる。更に、本発明は、地下構築部材の刃口周面で、
かつ次期埋設地下構築部材の牽引部材と対向位置に、同
数の次期牽引部材を接続したから、次期埋設地下構築部
材の牽引を容易かつ能率良く行なうことができる。しか
も、本発明は、隣接する地下構築部材の境界位置に牽引
ジャッキを設置したから、地下構築部材の正面位置に牽
引ジャッキを設置する場合に比べ、ジャッキ架台やジャ
ッキ受台の小型軽量化と、それらのスペースのコンパク
ト化を図ることができる。本発明は、地下構築部材の後
端部に反力カバーを着脱可能に装着し、該カバーに牽引
部材の一端を接続したから、刃口の剛性と、刃口と地下
構築部材との連結強度の低減を図ることができる。ま
た、本発明は、牽引部材を接続する反力カバーの取付枠
を、既設の地下構築部材方向に斜状に形成したから、牽
引分力を既設の地下構築部材方向に作用させ、地下構築
部材を正確に牽引することができる。
As described above, the underground construction member burying method of the present invention connects one end of the next-stage traction member to the blade installed on the underground construction member, and when the traction member is embedded in the underground construction member, Since it is laid at the towing position of the next-stage tow underground construction member, the next-stage tow member can be simultaneously laid when the underground construction member is buried, which can be rationalized and the construction accuracy can be improved. Therefore, a large-scale horizontal boring work for this is unnecessary, and the work period and the work cost can be reduced accordingly. Further, according to the present invention, after the traction member is laid, one end of the traction member is connected to the traction jack installed on the reaching shaft side, and the other end is connected to the cutting edge of the next traction underground construction member on the starting shaft side. It is possible to efficiently bury underground construction members. Furthermore,
The present invention, by boring only the construction reference position of the natural ground, and laying the traction member of the underground construction member in the excavation hole, minimizes horizontal boring work and reduces the construction cost, and at the construction reference position. The construction accuracy of the underground construction member to be buried can be improved. Moreover, according to the present invention, since the underground construction member is towed in a direction substantially coaxial with the position of the center of gravity, the underground construction member can be towed stably and accurately. According to the present invention, since the underground construction member is towed toward the existing underground construction member side, the underground construction member can be accurately towed along the existing underground construction member. Further, according to the present invention, since the plurality of next-stage traction members are connected to the blades attached to the underground construction member, it is possible to stably pull the next-stage buried underground construction member by the plurality of traction members. Further, according to the present invention, since one next-stage traction member is connected to the cutting edge attached to the underground construction member, it is possible to pull the next-stage buried underground construction member by one traction member that is easy to construct. Moreover, in the present invention, since the pulling member is arranged inside the blade, the pulling resistance of the pulling member can be reduced.
According to the present invention, since the underground construction member is pulled by a plurality of pulling members, it is possible to stabilize the pulling and improve the construction accuracy. Further, according to the present invention, since the underground construction member is towed by one tow member, the tow can be simplified and the construction cost can be reduced. Furthermore, the present invention is a blade opening peripheral surface of an underground construction member,
Moreover, since the same number of the next-stage traction members are connected to the positions facing the traction members of the next-stage underground construction member, the next-stage underground construction member can be easily and efficiently pulled. Moreover, since the present invention installs the tow jacks at the boundary positions of the adjacent underground construction members, as compared with the case where the tow jacks are installed at the front positions of the underground construction members, the downsizing of the jack rack and the jack receiving base, It is possible to make those spaces compact. According to the present invention, the reaction force cover is detachably attached to the rear end portion of the underground construction member, and one end of the traction member is connected to the cover. Therefore, the rigidity of the blade mouth and the connection strength between the blade mouth and the underground construction member are provided. Can be reduced. Further, according to the present invention, since the mounting frame of the reaction force cover that connects the traction member is formed obliquely in the direction of the existing underground construction member, the traction component force is applied in the direction of the existing underground construction member to generate the underground construction member. Can be towed accurately.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明により構築したアンダーパスの一例を示
す正面図である。
FIG. 1 is a front view showing an example of an underpass constructed according to the present invention.
【図2】図1の要部を拡大して示す正面図で、埋設管の
配置状況を示している。
FIG. 2 is an enlarged front view showing a main part of FIG. 1, showing a state of arrangement of buried pipes.
【図3】本発明に適用した埋設管のうち、基準管を示す
正面図である。
FIG. 3 is a front view showing a reference pipe among the buried pipes applied to the present invention.
【図4】本発明に適用した埋設管のうち、基準管に隣接
して配置する標準管を示す正面図である。
FIG. 4 is a front view showing a standard pipe arranged adjacent to a reference pipe among the buried pipes applied to the present invention.
【図5】本発明に適用した埋設管のうち、図4の標準管
に隣接して配置する標準管を示す正面図である。
FIG. 5 is a front view showing a standard pipe arranged adjacent to the standard pipe of FIG. 4 among the buried pipes applied to the present invention.
【図6】本発明に適用した埋設管のうち、図5の標準管
に隣接して配置する標準管を示す正面図である。
FIG. 6 is a front view showing a standard pipe arranged adjacent to the standard pipe of FIG. 5 among the buried pipes applied to the present invention.
【図7】本発明によるアンダーパスの施工当初の状況を
示す断面図である。
FIG. 7 is a cross-sectional view showing a situation at the beginning of construction of the underpass according to the present invention.
【図8】本発明による基準管の埋設状況を平面的に示し
た断面図である。
FIG. 8 is a cross-sectional view showing a buried state of a reference pipe according to the present invention in a plan view.
【図9】図8の要部拡大図で、牽引ジャッキの設置状況
を示している。
FIG. 9 is an enlarged view of a main part of FIG. 8, showing the installation state of the tow jack.
【図10】図9の正面図で、牽引ジャッキの設置状況を
示している。
FIG. 10 is a front view of FIG. 9 showing the installation state of the tow jack.
【図11】本発明による標準管の埋設状況を平面的に示
した断面図で、基準管に隣接する標準管の埋設状況を示
している。
FIG. 11 is a cross-sectional view showing in plan a buried state of a standard pipe according to the present invention, showing a buried state of a standard pipe adjacent to a reference pipe.
【図12】図11の要部拡大図で、牽引ジャッキの設置
状況を示している。
FIG. 12 is an enlarged view of a main part of FIG. 11, showing the installation state of the tow jack.
【図13】図12の正面図で、牽引ジャッキの設置状況
を示している。
FIG. 13 is a front view of FIG. 12 showing the installation state of the tow jack.
【図14】本発明の第2実施例を示す断面図で、基準管
の埋設状況を平面的に示している
FIG. 14 is a cross-sectional view showing a second embodiment of the present invention, showing in plan a buried state of a reference pipe.
【図15】図14のAーA線に沿う拡大断面図である。15 is an enlarged cross-sectional view taken along the line AA of FIG.
【図16】本発明の第2実施例における標準管の埋設状
況を平面的に示した断面図で、基準管に隣接する標準管
の埋設状況を示している。
FIG. 16 is a cross-sectional view showing a plan view of the embedding condition of the standard pipe in the second embodiment of the present invention, showing the embedding condition of the standard pipe adjacent to the reference pipe.
【図17】本発明に適用した反力カバーの一例を示す斜
視図で、第2実施例の標準管に装着した状況を示してい
る。
FIG. 17 is a perspective view showing an example of a reaction force cover applied to the present invention, showing a state in which the reaction force cover is attached to the standard pipe of the second embodiment.
【図18】図16の要部拡大図である。FIG. 18 is an enlarged view of a main part of FIG.
【図19】本発明の第3実施例を示す正面図で、埋設管
の別の態様を示している。
FIG. 19 is a front view showing a third embodiment of the present invention, showing another aspect of the buried pipe.
【図20】本発明の第4実施例を示す横断面図で、ジャ
ッキ架台の架設状況と牽引ジャッキの取付け状況を示し
ている。
FIG. 20 is a transverse cross-sectional view showing a fourth embodiment of the present invention, showing the installation state of the jack mount and the attachment state of the tow jack.
【符号の説明】[Explanation of symbols]
1 地山 3 発進立坑 4 到達立坑 6,6a,6b,6c 地下構築部材(埋設管) 19,19a,19b,19c 刃口 22 牽引部材 23 次期牽引部材 35 掘削孔 40,41 反力カバー 43 取付枠 1 Ground 3 Start shaft 4 Reach shaft 6, 6a, 6b, 6c Underground construction member (buried pipe) 19, 19a, 19b, 19c Blade mouth 22 Traction member 23 Next traction member 35 Excavation hole 40, 41 Reaction force cover 43 Installation frame
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松 沢 智 之 東京都千代田区丸の内一丁目6番5号 東 日本旅客鉄道 株式会社内 (72)発明者 林 敏 夫 東京都千代田区三崎町2丁目5番3号 鉄 建 建 設 株式会社内 (72)発明者 斎 藤 雅 春 東京都千代田区三崎町2丁目5番3号 鉄 建 建 設 株式会社内 (72)発明者 小 室 好 孝 東京都千代田区三崎町2丁目5番3号 鉄 建 建 設 株式会社内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Tomoyuki Matsuzawa 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Toshio Hayashi 2-chome, Misaki-cho, Chiyoda-ku, Tokyo 5-3 No. 3 Iron Construction Co., Ltd. (72) Inventor Masaharu Sai Fuji No. 2-5-3 Misakicho, Chiyoda-ku, Tokyo Within Iron Construction Co., Ltd. (72) Inventor Yoshitaka Komuro Tokyo 2-5-3 Misaki-cho, Chiyoda-ku Iron Construction Co., Ltd.

Claims (14)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 先端に刃口を着脱可能に装着し、内部に
    掘削装置を収容した地下構築部材を発進立坑から到達立
    坑へ牽引し、該地下構築部材を順次地山に並列して埋設
    するようにした地下構築部材の埋設工法において、地下
    構築部材に装着した刃口に次期牽引部材の一端を接続
    し、該牽引部材を上記地下構築部材の埋設時に、次期牽
    引地下構築部材の牽引位置に敷設することを特徴とする
    地下構築部材の埋設工法。
    1. A cutting edge is detachably attached to the tip, and an underground construction member containing an excavator inside is towed from a starting shaft to a reaching shaft, and the underground building members are sequentially buried in parallel with the ground. In the underground construction member burying construction method, the one end of the next-stage traction member is connected to the blade installed on the underground construction member, and the traction member is placed in the traction position of the next-stage traction underground construction member when burying the underground construction member. A method of burying underground construction members characterized by being laid.
  2. 【請求項2】 牽引部材を敷設後、該牽引部材の一端を
    到達立坑側に設置した牽引ジャッキに接続し、この他端
    を発進立坑側の次期牽引地下構築部材の刃口に接続する
    請求項1記載の地下構築部材の埋設工法。
    2. After laying the tow member, one end of the tow member is connected to a tow jack installed on the reaching shaft side, and the other end is connected to the blade of the next tow underground construction member on the starting shaft side. The underground construction member burial method described in 1.
  3. 【請求項3】 地山の施工基準位置のみをボーリング
    し、その掘削孔に地下構築部材の牽引部材を敷設する請
    求項1記載の地下構築部材の埋設工法。
    3. The underground construction member burying method according to claim 1, wherein only the construction reference position of the natural ground is bored, and the traction member of the underground construction member is laid in the drilled hole.
  4. 【請求項4】 地下構築部材を重心位置と略同軸方向に
    牽引する請求項3記載の地下構築部材の埋設工法。
    4. The method for burying an underground construction member according to claim 3, wherein the underground construction member is pulled in a direction substantially coaxial with the position of the center of gravity.
  5. 【請求項5】 地下構築部材を既設の地下構築部材側に
    偏って牽引する請求項1記載の地下構築部材の埋設工
    法。
    5. The method for burying an underground construction member according to claim 1, wherein the underground construction member is biased toward the existing underground construction member side.
  6. 【請求項6】 地下構築部材に装着した刃口に、複数の
    次期牽引部材を接続する請求項1記載の地下構築部材の
    埋設工法。
    6. The method for burying an underground construction member according to claim 1, wherein a plurality of next-stage traction members are connected to the cutting edge attached to the underground construction member.
  7. 【請求項7】 地下構築部材に装着した刃口に、1本の
    次期牽引部材を接続する請求項1記載の地下構築部材の
    埋設工法。
    7. The method for burying an underground construction member according to claim 1, wherein one next-stage traction member is connected to a blade attached to the underground construction member.
  8. 【請求項8】 刃口の内側に牽引部材を配置する請求項
    6,7記載の地下構築部材の埋設工法。
    8. The method for burying an underground construction member according to claim 6, wherein a traction member is arranged inside the blade opening.
  9. 【請求項9】 地下構築部材を複数の牽引部材で牽引す
    る請求項1記載の地下構築部材の埋設工法。
    9. The underground construction member burying method according to claim 1, wherein the underground construction member is towed by a plurality of towing members.
  10. 【請求項10】 地下構築部材を1本の牽引部材で牽引
    する請求項1記載の地下構築部材の埋設工法。
    10. The method for burying an underground construction member according to claim 1, wherein the underground construction member is towed by one towing member.
  11. 【請求項11】 地下構築部材の刃口周面で、かつ次期
    埋設地下構築部材の牽引部材と対向位置に、同数の次期
    牽引部材を接続する請求項1記載の地下構築部材の埋設
    工法。
    11. The method for burying an underground construction member according to claim 1, wherein the same number of the next traction members are connected to the peripheral surface of the blade of the underground construction member and at a position facing the traction member of the next underground construction member.
  12. 【請求項12】 隣接する地下構築部材の境界位置に牽
    引ジャッキを設置する請求項5記載の地下構築部材の埋
    設工法。
    12. The method for burying an underground construction member according to claim 5, wherein a tow jack is installed at a boundary position between adjacent underground construction members.
  13. 【請求項13】 地下構築部材の後端部に反力カバーを
    着脱可能に装着し、該カバーに牽引部材の一端を接続す
    る請求項1記載の地下構築部材の埋設工法。
    13. The method for burying an underground construction member according to claim 1, wherein a reaction force cover is detachably attached to a rear end portion of the underground construction member, and one end of the traction member is connected to the cover.
  14. 【請求項14】 牽引部材を接続する反力カバーの取付
    枠を、既設の地下構築部材方向に斜状に形成した請求項
    13記載の地下構築部材の埋設工法。
    14. The method for burying an underground construction member according to claim 13, wherein the mounting frame of the reaction force cover for connecting the pulling member is formed obliquely toward the existing underground construction member.
JP14837095A 1995-05-24 1995-05-24 Underground construction members burying method Expired - Lifetime JP2966765B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14837095A JP2966765B2 (en) 1995-05-24 1995-05-24 Underground construction members burying method

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Publication Number Publication Date
JPH08319792A true JPH08319792A (en) 1996-12-03
JP2966765B2 JP2966765B2 (en) 1999-10-25

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ID=15451248

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JP2007262748A (en) * 2006-03-28 2007-10-11 Okumura Corp Construction equipment for pipe roof
JP2007262837A (en) * 2006-03-29 2007-10-11 Okumura Corp Pipe for forming pipe roof
JP4603994B2 (en) * 2006-03-29 2010-12-22 株式会社奥村組 Pipe roof forming pipe
JP2011174219A (en) * 2010-02-23 2011-09-08 East Japan Railway Co Method of jacking element and cutting edge element used for the same

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