JPS60230497A - Construction of underground square structure - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 発明の目的 産業上の利用分野 本発明の方法によって、地中に角形状構造物を　゛設け
、その内部の土砂を掘削排除し、その内部に必要な附属
施設を設け、歩道、車道又は歩車道等の交通の便を画す
るものである。上記以外にこの角形状構造物は地下ガレ
ーヂ或いは倉庫、更にｉ−判事ある時は避難用構造物と
しても利用でき、その規模の大小によって利用分野は極
めて広い。[Detailed Description of the Invention] Purpose of the Invention Industrial Field of Application By the method of the present invention, a rectangular structure is provided underground, earth and sand inside the structure is excavated and removed, and necessary auxiliary facilities are installed inside the structure. , which mark the convenience of transportation such as sidewalks, roads, or pedestrian paths. In addition to the above, this rectangular structure can be used as an underground garage or warehouse, and also as an evacuation structure when there is an i-judge, and the field of use is extremely wide depending on its size.

従来の技術 地中に角形状構造換金構築する方法中子め構成部材を製
作し、これを地中に前進させて所定位置に設置する在来
の方法としては、適当な長さの角形断面部材をけん引又
は推進或いはけん引推進によって所定位置迄前進させる
方法がある。Conventional technology Method for constructing a rectangular structure underground The conventional method is to manufacture a core component, advance it underground, and install it in a predetermined position. There is a method of advancing to a predetermined position by towing, propelling, or traction propulsion.

発明が解決しようとする問題点 前記従来の方法では大形の構造物になると、先端の掘進
抵抗及び構成部材の外周と地盤間の摩擦２− 抵抗が極めて大きく、そのため前進設備に大きな能力従
って高額な設備を必要とし、工費の膨大を招く。本発明
は安価な前進設備で地下構造物を設置しようとするもの
である。Problems to be Solved by the Invention In the conventional method described above, when building a large structure, the excavation resistance at the tip and the friction resistance between the outer periphery of the component and the ground are extremely large. This requires extensive equipment, resulting in huge construction costs. The present invention attempts to install underground structures using inexpensive advance equipment.

発明の構成 問題点を解決するための手段 本発明は断面角形状構造物を前進させる方向の縦方向に
複数の中空筒体に分割し、この中空筒体を角形状構造物
の形状に密接して配設して、各中空筒体を個々にけん引
又は推進或いはけん引推進して、所定位置迄前進させ、
各中空筒体に緊張材を通すため予め設けである孔に緊張
材を、予め設けである作業坑より直線状に挿通配設し、
その両端部に定着具を装着し、１方の定着具を定着し、
他端より緊張し、定着して、角形状構造物の各面を１体
化するとともに、隅角部においても緊結１体化して、堅
固な角形状構造物を地中に構築するものである。Means for Solving Problems in Structure of the Invention The present invention divides a structure having a rectangular cross-section into a plurality of hollow cylinders in the longitudinal direction of the advancing direction, and closely aligns the hollow cylinders with the shape of the rectangular structure. each hollow cylindrical body is individually towed or propelled or towed and propelled to advance to a predetermined position;
In order to pass the tension material through each hollow cylindrical body, the tension material is inserted into a pre-provided hole in a straight line from a pre-provided working hole,
Attach a fixing device to both ends, fix one of the fixing devices,
It is tensioned and anchored from the other end, unifying each side of the square structure, and also tightening and unifying the corners to build a solid square structure underground. .

作用 本発明の方法は、前記中空筒体を各個に隣接す３− る筒体をガイドとし、中空内に侵入して来る土砂を排出
しながら、前進させるので極めて小能力の前進設備で事
足りるので、前進設備としては極めて安価ですむ。Function: In the method of the present invention, the hollow cylindrical bodies are moved forward while using the three adjacent cylindrical bodies as guides and discharging the earth and sand that has entered the hollow space. , it is extremely inexpensive as a forwarding equipment.

実施例 第１図〜第３図は地中角形状構造物の分割した中空筒体
の図で、第１図は平面図、第２図は側面図、第３図は第
２図のＡ−Ａ矢視断面図である。Embodiment FIGS. 1 to 3 are diagrams of a divided hollow cylindrical body of an underground square-shaped structure, in which FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. It is a sectional view taken along arrow A.

図中２は中空筒体、３は先端に取りつけた刃口、４は中
空孔、６は緊張材５を通すための中空筒体２の横方向に
設けた孔、７は中空筒体２が夫々上下にずれないための
ガイド部である。前記中ガイド部の構造は従来各種のも
のがあり、本実施例ではその内の１例を図示したもので
ある。In the figure, 2 is a hollow cylinder, 3 is a cutting edge attached to the tip, 4 is a hollow hole, 6 is a hole provided in the horizontal direction of the hollow cylinder 2 for passing the tendon 5, and 7 is a hole in which the hollow cylinder 2 is inserted. This is a guide part to prevent vertical displacement. Conventionally, there are various structures for the middle guide portion, and this embodiment shows one example of them.

第４図〜第６図は角形状構造物が断面門形をした場合の
図で、第４図は正面図で、第５図は中空筒体２群が所定
位置迄前進した時の平面図、第６図は同じく側面図であ
る。図中９は地盤である。Figures 4 to 6 are diagrams when the square structure has a gate-shaped cross section, Figure 4 is a front view, and Figure 5 is a plan view when the two groups of hollow cylinders have moved forward to a predetermined position. , FIG. 6 is a side view as well. 9 in the figure is the ground.

第７図は、角形状構造物の断面が面形をした場合の正面
図であり、平面図、側面図は第５図及び４− 第６図と同じである。FIG. 7 is a front view of a square structure having a planar cross section, and the plan view and side view are the same as FIG. 5 and FIGS. 4-6.

以上の角形状構造物を地中所定位置に構築する方法を第
８図及び第９図にもとづいて述べる。両図共平面図であ
シ、第８図、は中空筒体の前進前に憚導地盤面に縦列に
配設したちのを示し、第９図は各中空筒体ヲ変互に順次
地中に前進させて行く途中の状態を示したものである。A method for constructing the above-mentioned angular structure at a predetermined location underground will be described based on FIGS. 8 and 9. Both figures are plan views. Figure 8 shows the hollow cylinders arranged vertically on the guiding ground surface before advancing, and Figure 9 shows the hollow cylinders being arranged in a vertical line on the ground surface in turn. This shows the state in the middle of being advanced.

各作業坑８は中空筒体２の前進開始前に設けても良く、
又前進に伴って設けても良く、或いは中空筒体２群が所
定の位置に達して後に設けても良い。作業坑８の長さは
中空筒体２の発進ケ所から　゛中空筒体２の最終位置に
おけるその先端附近迄とし、断面の大きさは緊張材５を
孔６に差しこみ、その両端に定着真木０を装着し、緊張
材５を緊張し、１定着する各作業に支障を来さない大き
さで、而も最小の断面積であることが望ましい。Each working hole 8 may be provided before the hollow cylindrical body 2 starts moving forward,
Further, it may be provided as the hollow cylinder moves forward, or may be provided after the two groups of hollow cylinders reach a predetermined position. The length of the working hole 8 is from the starting point of the hollow cylindrical body 2 to the vicinity of the tip of the hollow cylindrical body 2 at its final position. It is desirable that the size is such that it does not interfere with the operations of attaching the tension material 5, tensioning the tension material 5, and fixing the tension material 5, and also has the smallest cross-sectional area.

第８図に示すように、発進地“盤面に所要数の中空筒体
２を密接して前進方向に縦列に配設し、第９図に示すよ
うに、中空筒体２を交互に、けん引又は推進或いはけん
引推進方法によって１工程長５− づつ夫々前進させ、第５図及び第６図に示すように中空
筒体２群を所定位置迄前進させる。中空筒体２の前進途
中において中空孔４内に侵入して来る一土砂を排出し乍
ら前進させると共に、中空筒体２が前進途中互に開き気
味になるのを両側の作業坑８から押しつけ乍ら前進させ
て防止するか又は作業坑８を後で設ける場合は両側の土
圧でこれを防止し乍ら前進をさせるのである。中空筒体
２群が所定の位置に達したならば、各孔６ｆ、中空筒体
２を微調正して合致させ、前記のように作業坑８よシ緊
張材５を挿通し、これを緊張し、定着具１・０で定着し
、隅角部のみならず、板状部も堅固に１体化して、所要
の角形状構造物を地中所定位置に構築するものである。As shown in Fig. 8, the required number of hollow cylinders 2 are arranged closely in tandem in the forward direction on the starting point board, and as shown in Fig. 9, the hollow cylinders 2 are alternately towed. Alternatively, by a propulsion or traction method, the two groups of hollow cylinders are advanced by one step length of 5-5 to advance to a predetermined position as shown in FIGS. 5 and 6. During the advancement of the hollow cylinders 2, the 4 while discharging the earth and sand that has entered into the interior of the hollow cylinder 2, and preventing the hollow cylinders 2 from becoming a little open from each other during the forward movement by pressing them from the working holes 8 on both sides and moving them forward. If the holes 8 are to be installed later, the earth pressure on both sides will prevent this while allowing the hollow cylinders to advance.Once the two groups of hollow cylinders have reached the predetermined position, each hole 6f and the hollow cylinders 2 will be finely adjusted. After correcting and aligning, insert the tension material 5 through the working hole 8 as described above, tension it, and fix it with the fixing tools 1 and 0, firmly fixing not only the corner part but also the plate part 1. This method involves building the required square-shaped structure at a predetermined location underground.

勿論作業坑８は後に埋戻す。Of course, the working pit 8 will be backfilled later.

尚中空筒体は運搬その他作業等のため１度に余り長いも
のは作れないので、構築構造物が長い場合は中空筒体を
各ケに継ぎ足し乍ら前進させるのである。Note that hollow cylinders cannot be made too long at one time due to transportation and other operations, so if the structure is long, hollow cylinders are added to each piece and moved forward.

発明の効果 ６− 既に述べたように、在来の工法では、大型断面の角形状
構造物をそのま＼の形状で、切羽部分を掘削し乍ら地中
に前進させるので、積々の欠点が生じている。即ち掘進
抵抗（刃口部分、構造物外周と地盤間の摩擦力）が極め
て大きく、この部材を地中に前進させるには強大能力の
前進設備を必要とする。前進設備費はその能力が大きく
なると急に増大し、大型となるため作業能率も劣化し、
工費の増大をまねく。掘削し乍ら前進させるため切羽土
砂の崩壊を生じ、これ會防ぐため又前記摩擦力を縁切る
ためパイプルーフ或いは縁切り材を挿入する等の処置を
講するが、これには莫大な工費を要し、真に不経済であ
った。本発明の方法によれば、分割した小断面の中空筒
体を個々に前進させれば良いので、その前進設備の能力
は小さくて良く、作業もし易く、従って工費も低廉です
む等の大きな効果を有する。角形状構造物の断面が大型
になる根本発明の効果は増大する。Effect of the invention 6 - As already mentioned, in the conventional construction method, a square structure with a large cross section is advanced into the ground while excavating the face part while keeping the same shape, which has many drawbacks. is occurring. That is, the digging resistance (frictional force between the cutting edge, the outer periphery of the structure, and the ground) is extremely large, and advancing equipment with a powerful capacity is required to advance this member underground. Advance equipment costs increase rapidly as the capacity increases, and work efficiency deteriorates due to the large size.
This will lead to an increase in construction costs. In order to move forward while excavating, the face earth and sand collapses, and in order to prevent this and to cut off the frictional force, measures such as inserting a pipe roof or edge cutting materials are taken, but this requires a huge amount of construction cost. However, it was truly uneconomical. According to the method of the present invention, since it is only necessary to advance the divided hollow cylinders with small cross sections individually, the capacity of the advancing equipment may be small, the work is easy, and the construction cost is low. has. The effect of the fundamental invention in which the cross section of the angular structure becomes larger increases.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図〜第３図は本発明の方法に関する１実施７− 例における角形状構造物を分割した部材の中空筒体の図
で、第１図は平面図、第２図は側面図、第３図は断面図
で、第４図〜第６図は角形状構造物が門形構造物である
場合の図で、第４図は正面図、第５図は平面図、第６図
は側面図で、第７図は角形状構造物が面形構造物である
場合の正面図で、第８図及び第９図は角形状構造物の構
築方法を示す工程平面図である。　− 符号 １　・・・・・・・・　角形状構造物 ２・・・・・・・・中空筒体 ３・・・・・・・・刃　口 ４・・・・・・・・中　空　孔 ５・・・・・・・・緊張材 ６・・・・・・・・孔 ７・・・・・・・・ガイド部 ８・・・・・・・・作　業坑 ９・・・・・・・・地　盤 １０・・・・・・・・定着具 特許出願人　植　村　厚　−（ほか１名〕８− 冷１１ヅ１ 第２１ヅ１ 舶６１■1 to 3 are views of a hollow cylindrical body of a member obtained by dividing a rectangular structure in 1st Example of the method of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. Figure 3 is a sectional view, Figures 4 to 6 are views when the square structure is a portal structure, Figure 4 is a front view, Figure 5 is a plan view, and Figure 6 is a side view. In the figures, FIG. 7 is a front view when the angular structure is a planar structure, and FIGS. 8 and 9 are process plan views showing a method of constructing the angular structure. - Code 1: Square structure 2: Hollow cylinder 3: Blade mouth 4: Hollow hole 5... Tension material 6... Hole 7... Guide section 8... Working hole 9... ... Ground 10 ... Fixture patent applicant Atsushi Uemura - (1 other person) 8 - Refrigerated 11th 1st 21st 1 Ship 61■

Claims (3)

【特許請求の範囲】[Claims] （１）地中に角形状構造物を構築する方法において、角
形状構造物の両側端の上下部に当る位置に、・その設置
位置迄作業坑を設け、各作業坑の、はぼ水平方向及びほ
ぼ垂直方向の間に断面角形の複数ケの中空筒体音、その
前進方向に密接して並列配置し、在来の方法により各中
空筒体を順次地中に所定位置迄前進させ、各中空筒体の
横方向に予め設けである孔を揃えて、全中空筒体の孔を
挿通して緊張材を配設し、各緊張材の両端に定着具を装
着し、緊張材を緊張し、定着具で定着し、角形状Φ構造
物を１体化してなることを特徴とする地中角形状構造物
の構築方法。　・(1) In a method of constructing a square structure underground, work shafts are provided at the upper and lower parts of both ends of the square structure, and the working shafts are installed in the horizontal direction. A plurality of hollow cylindrical bodies with a rectangular cross section are arranged in close parallel in the direction of advancement, and each hollow cylindrical body is sequentially advanced into the ground to a predetermined position using a conventional method. Align the pre-prepared holes in the lateral direction of the hollow cylindrical body, insert the tensioning material through the holes of all the hollow cylindrical bodies, place the tensioning material, attach fixing tools to both ends of each tensioning material, and tighten the tensioning material. , a method for constructing an underground prismatic structure, characterized by fixing it with a fixing tool and integrating a prismatic Φ structure into one body.・ （２）角形状構造物は門形構造物である特許請求の範囲
第（１）項記載の地中角形状構造物の構築方法。(2) The method for constructing an underground prismatic structure according to claim (1), wherein the prismatic structure is a gate-shaped structure. （３）角形状構造物は面形構造物である特許請求の１− 範囲第（１）項記載の地中角形状構造物の構築方法。(3) Claim 1- in which the angular structure is a planar structure. A method for constructing an underground square-shaped structure according to scope item (1).