JPH02300422A - Construction of underground structure - Google Patents

Construction of underground structure

Info

Publication number
JPH02300422A
JPH02300422A JP1118888A JP11888889A JPH02300422A JP H02300422 A JPH02300422 A JP H02300422A JP 1118888 A JP1118888 A JP 1118888A JP 11888889 A JP11888889 A JP 11888889A JP H02300422 A JPH02300422 A JP H02300422A
Authority
JP
Japan
Prior art keywords
underground
underground structure
shaft
excavation
constructed
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
JP1118888A
Other languages
Japanese (ja)
Other versions
JPH0726406B2 (en
Inventor
Takeshi Kitamura
健 北村
Eiji Matsushita
松下 英二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
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 Kajima Corp filed Critical Kajima Corp
Priority to JP1118888A priority Critical patent/JPH0726406B2/en
Publication of JPH02300422A publication Critical patent/JPH02300422A/en
Publication of JPH0726406B2 publication Critical patent/JPH0726406B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

PURPOSE:To make construction of an underground space possible by making circular excavations on the horizontal planes at the underground with a shield driver starting from a point that is set at a shaft made by perpendicular excavation, and by making furthermore the excavation continue in the upward and downward directions with reinforced concrete filled therein and by discharging the soil from the inside. CONSTITUTION:A shaft 1 is made by excavating the ground from the upper layer above the center of a projected underground structure B. Horizontal excavation is then made with a shield driver 2, starting first from the lower end of the shaft until it reaches the position of outer periphery that is to encircle the underground structure B. When the shield driver 2 reaches the specified position, circular excavation on the horizontal planes are made and tunnels 3 that are to form the periphery of the underground structure B are constructed continuously or discontinuously in the upward and downward directions. After making bar arrangement with reinforcing bars 4 at the inside of the tunnels 3, the tunnels 3 are filled with concrete 5. Thereby side walls W of the underground structure B are constructed and the soil at the inside of the walls is discharged lastly. By such method, an underground space can be constructed, minimizing harmful effect to the aboveground structures or to other underground structures.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は地下数十m以深の大深度の地中に、大空間を
構成する構造物を構築する、地中構造物の構築方法に関
するものである。
[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a method for constructing an underground structure that constitutes a large space in the ground at a depth of several tens of meters or more. It is.

(発明が解決し、ようとする課題) 大深度の地中に大空間の構造物を建設し、これを研究施
設等の施設に利用する計画が現実的な課題として現在浮
上しつつあるが、この技術的課題に対し、従来工法の開
削工法やケーソン工法では地表面から直接的に施工され
るため工事期間中地上に及ぼす影響が大きく、また既設
地下構造物が工事進行の障害になる等都市近郊では施工
上及び環境上不適切な点が多く、計画の実現には障害を
解決する方法が望まれる。
(Problems to be solved and attempted by the invention) A plan to construct a large space structure deep underground and use it as a facility such as a research facility is currently emerging as a realistic issue. In response to this technical problem, conventional construction methods such as the cut-and-cover method and the caisson method have a large impact on the ground during the construction period because they are constructed directly from the ground surface, and existing underground structures can become an obstacle to the progress of construction. There are many construction and environmental inadequacies in the suburbs, and a method to resolve these obstacles is needed to realize the plan.

この発明はこうした背景を踏まえてなされたもので、従
来工法の弱点を克服する方法を提案しようとするもので
ある。
This invention was made based on this background, and aims to propose a method to overcome the weaknesses of conventional construction methods.

(課題を解決するための手段) 本発明ではまず目標とする地中構造物の中心部の上層よ
り地盤を所定深度まで鉛直に掘削して立坑を形成し、こ
の立坑を基点としてシールド機を掘進させて地中に空間
を造成することにより工事期間中の地上の占有敷地面積
を狭小化し、地上に与える影響を最小限に抑えると同時
に、既設地下構造物の存在を回避して地中構造物を構築
する。
(Means for Solving the Problems) In the present invention, first, the ground is vertically excavated to a predetermined depth from the upper layer of the center of the target underground structure to form a shaft, and a shield machine is excavated using this shaft as a base point. By creating a space underground, we can reduce the area occupied above ground during the construction period, minimize the impact on the ground, and at the same time avoid the presence of existing underground structures. Build.

施工の基点となる立坑の下方からはシールド機を平面的
に環状に掘進させ、上下方向に連続する、または1gr
続的な、地中構造物の周回を構成する坑道が構築される
From the bottom of the shaft, which is the base point of construction, a shield machine is excavated in a flat ring shape, continuing vertically or 1 gr.
A tunnel will be constructed that will continue around the underground structure.

この坑道内に下方より鉄筋コンクリートが充填され、地
中構造物の側壁が構築され、更にその内部の土砂を排出
して空間が造成される。
The tunnel is filled with reinforced concrete from below to construct the side walls of the underground structure, and the earth and sand inside are drained to create a space.

(実施例) 以下本発明を一実施例を示す図面に基づいて説明する。(Example) The present invention will be explained below based on the drawings showing one embodiment.

この発明は目標とする地中構造物Bの中心部に立坑1を
穿設し、その下端部を基点として地中構造物Bの外周側
に側壁Wを構築した後、その内部に空間を造成する方法
である。
This invention involves drilling a vertical shaft 1 in the center of a target underground structure B, constructing a side wall W on the outer circumferential side of the underground structure B using its lower end as a base, and then creating a space inside it. This is the way to do it.

立坑工は第1図に示すように地中構造物B中心部の上層
よりその下端位置まで地盤を鉛直に掘削して形成される
As shown in Figure 1, the shaft is formed by vertically excavating the ground from the upper layer of the center of underground structure B to its lower end.

この立坑1下端部より図示するように一旦地中構造物B
の外周位置までほぼ水平にシールド機2を掘進させる。
From the bottom end of this shaft 1, as shown in the figure, the underground structure B
The shield machine 2 is excavated almost horizontally to the outer circumferential position.

所定の位置に到達したところで、シールド機2を平面的
に環状に掘進させながら覆工し、周回する坑道3を構築
する。
When a predetermined position is reached, the shielding machine 2 is made to excavate in a circular manner on a plane, lining the tunnel, and constructing a circulating tunnel 3.

最下端の坑道3の構築後、更にその上層部へシールド機
2を掘進させ、上下方向に連続する、または断続的な坑
道3を形成する。
After constructing the lowermost tunnel 3, the shield machine 2 is further excavated to the upper layer to form a vertically continuous or intermittent tunnel 3.

坑道3は上下方向にほぼ連続するごとにより円筒状1球
状等に想定される地中構造物Bの形状に応じてに構築さ
れる。
The tunnel 3 is constructed in accordance with the shape of the underground structure B, which is assumed to be cylindrical, spherical, etc., by being substantially continuous in the vertical direction.

坑道3を上下方向に連絡させた後、この坑道3内に下方
から上方へ向かって第3図に示すように鉄筋4を配筋し
ながらコンクリート5を充填し、地中構造物Bの外郭と
なる側壁Wを構築する。
After connecting the tunnel 3 in the vertical direction, concrete 5 is filled inside the tunnel 3 while arranging reinforcing bars 4 from the bottom to the top as shown in FIG. A side wall W is constructed.

側壁Wの構築後、その内部の土砂を排出し、第2図−1
,Uに示すような側壁Wに囲まれた大空間が造成される
。■は円筒形の場合、■は球状の場合である。
After constructing the side wall W, the soil inside it is discharged, and the
A large space surrounded by side walls W as shown in , U is created. ■ indicates the case of cylindrical shape, and ■ indicates the case of spherical shape.

ところで側壁W構築用の坑道3は施工中の地下水の遮断
等の目的から、第4図に示すように横方向に複数重に形
成される場合があり、その場合外側の坑道3は施工時、
地下水路等に利用されると同時に、この空間によって坑
道3を挟む内外間の振動の伝播を防止することができる
By the way, the tunnel 3 for constructing the side wall W may be formed in multiple layers in the horizontal direction as shown in Fig. 4 for the purpose of blocking groundwater during construction, etc. In this case, the outer tunnel 3 is
While being used for underground waterways, etc., this space can prevent vibrations from propagating between the inside and outside of the tunnel 3.

またこの外側の坑道3の空間は地中構造物Bの完成後、
交通、ユーティリティ等のための空間として利用するこ
とができる。
In addition, after the completion of underground structure B, the space of this outer tunnel 3 will be
It can be used as a space for transportation, utilities, etc.

(発明の効果) この発明は以上の通りであり、地中構造物の中心部に、
地上から下端部まで施工の拠点となる立坑を掘り、この
立坑を通じて地中の掘削。
(Effect of the invention) This invention is as described above, and in the center of the underground structure,
A vertical shaft will be dug from the ground level to the bottom end, which will serve as the base for construction, and underground excavation will be carried out through this vertical shaft.

側壁の構築を行うことより大空間を造成するものである
ため地上に占める敷地面積は狭小であり、地上構造物や
低深度の既設地中構造物への影響を最小に抑えて工事を
遂行することが可能である。
Since the construction of side walls creates a larger space, the site area occupied above ground is small, and the construction work is carried out with minimal impact on above-ground structures and existing underground structures at low depths. Is possible.

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

第1図は本発明の施工要領を示した概要図、第2図−1
,■は空間造成の様子を示した概要図、第3図は第2図
の一部拡大刊、第4図は坑道を二重に形成した場合を示
した概要図である。 B・・・・・・地中構造物、W・・・・・・側壁、1・
旧・・立坑・2・・・・・・シールド機、3・・・・・
・坑道、4・・・・・・鉄筋、5・・・・・・コンクリ
ート。 第1図 ゞ2 第2図 1        It 第3図 第4図
Figure 1 is a schematic diagram showing the construction procedure of the present invention, Figure 2-1
, ■ are schematic diagrams showing how the space was created, Figure 3 is a partially enlarged version of Figure 2, and Figure 4 is a schematic diagram showing the case where a double tunnel is formed. B...Underground structure, W...Side wall, 1.
Old...Shaft 2...Shield machine, 3...
- Mine shaft, 4...Reinforced steel, 5...Concrete. Fig. 1 2 Fig. 2 1 It Fig. 3 Fig. 4

Claims (1)

【特許請求の範囲】[Claims] (1)目標とする地中構造物の中心部の上層より地盤を
ほぼ鉛直に掘削して立坑を形成し、この立坑を基点とし
、その下方からシールド機をほぼ平面的に環状に掘進さ
せ、上下方向に連続する、または断続的な、地中構造物
の周面を構成する坑道を構築し、この坑道内に下方より
鉄筋コンクリートを充填して側壁を構築した後、側壁内
の土砂を排出して空間を造成する地中構造物の構築方法
(1) Excavate the ground almost vertically from the upper layer of the center of the target underground structure to form a shaft, and using this shaft as a base, a shield machine excavates in an almost planar ring shape from below, Construct a vertically continuous or intermittent tunnel that forms the circumferential surface of an underground structure, fill this tunnel with reinforced concrete from below to build a side wall, and then drain the earth and sand inside the side wall. A method of constructing underground structures to create space.
JP1118888A 1989-05-12 1989-05-12 How to construct an underground structure Expired - Lifetime JPH0726406B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1118888A JPH0726406B2 (en) 1989-05-12 1989-05-12 How to construct an underground structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1118888A JPH0726406B2 (en) 1989-05-12 1989-05-12 How to construct an underground structure

Publications (2)

Publication Number Publication Date
JPH02300422A true JPH02300422A (en) 1990-12-12
JPH0726406B2 JPH0726406B2 (en) 1995-03-22

Family

ID=14747628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1118888A Expired - Lifetime JPH0726406B2 (en) 1989-05-12 1989-05-12 How to construct an underground structure

Country Status (1)

Country Link
JP (1) JPH0726406B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007177425A (en) * 2005-12-27 2007-07-12 Ohbayashi Corp Construction method of underground structure and underground structure constructed by this method
CN105672352A (en) * 2016-01-19 2016-06-15 吴倩倩 Pre-reinforcing structure and pre-reinforcing method for underground space construction
CN106836273A (en) * 2017-01-13 2017-06-13 沈阳建筑大学 A kind of pair of arch Urban Underground Complex and its tunneling method of construction
CN106836277A (en) * 2017-01-13 2017-06-13 沈阳建筑大学 Multi-layer urban underground complex and underground excavation construction method thereof
CN113622922A (en) * 2021-06-28 2021-11-09 中铁十六局集团有限公司 Early-stage excavation method for deep ground space

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02108799A (en) * 1988-10-18 1990-04-20 Kajima Corp Building method for underground structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02108799A (en) * 1988-10-18 1990-04-20 Kajima Corp Building method for underground structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007177425A (en) * 2005-12-27 2007-07-12 Ohbayashi Corp Construction method of underground structure and underground structure constructed by this method
CN105672352A (en) * 2016-01-19 2016-06-15 吴倩倩 Pre-reinforcing structure and pre-reinforcing method for underground space construction
CN106836273A (en) * 2017-01-13 2017-06-13 沈阳建筑大学 A kind of pair of arch Urban Underground Complex and its tunneling method of construction
CN106836277A (en) * 2017-01-13 2017-06-13 沈阳建筑大学 Multi-layer urban underground complex and underground excavation construction method thereof
CN113622922A (en) * 2021-06-28 2021-11-09 中铁十六局集团有限公司 Early-stage excavation method for deep ground space

Also Published As

Publication number Publication date
JPH0726406B2 (en) 1995-03-22

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