JP3327191B2 - Underground structure and its construction method - Google Patents

Underground structure and its construction method

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Publication number
JP3327191B2
JP3327191B2 JP31806497A JP31806497A JP3327191B2 JP 3327191 B2 JP3327191 B2 JP 3327191B2 JP 31806497 A JP31806497 A JP 31806497A JP 31806497 A JP31806497 A JP 31806497A JP 3327191 B2 JP3327191 B2 JP 3327191B2
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JP
Japan
Prior art keywords
underground
plate
floor
arch
constructed
Prior art date
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Expired - Fee Related
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JP31806497A
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Japanese (ja)
Other versions
JPH11152761A (en
Inventor
元 伊崎
正 吉田
好幸 野呂
Original Assignee
鹿島建設株式会社
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Priority to JP31806497A priority Critical patent/JP3327191B2/en
Publication of JPH11152761A publication Critical patent/JPH11152761A/en
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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】この発明は、地下鉄の駅や地
下駐車場などとして利用される地下構造物およびその構
築工法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground structure used as a subway station or an underground parking lot, and a construction method thereof.
【0002】[0002]
【従来の技術】一般に、都市部における地下鉄の駅や地
下駐車場などの地下構造物は、周辺交通への安全性の配
慮、作業時間帯や作業範囲の制約などの厳しい工事環境
に加え、多数の柱を有する複雑な構造躯体を構築する必
要があり、さらにきわめて限られた地下空間での作業を
強いられるため、建設費が高くなっているのが現状であ
る。
2. Description of the Related Art In general, underground structures such as subway stations and underground parking lots in urban areas are subject to severe construction environments such as consideration for safety of surrounding traffic, restrictions on working hours and working ranges, and many others. It is necessary to construct a complex structural skeleton with pillars and work in very limited underground space, which has resulted in high construction costs.
【0003】ところで、これまでこの種の地下構造物は
矩形のラーメン構造をなしている場合がほとんどであ
り、このような構造形式の場合、各階の床を支持するた
めに数多くの柱を構築する必要があり、またこの種の柱
の構築には多くの労力をついやすだけでなく、柱が林立
することにより他の作業の妨げの原因にもなっている。
[0003] By the way, most of such underground structures have heretofore formed a rectangular frame structure, and in such a structure, many columns are constructed to support the floor of each floor. It is necessary and the construction of this type of pillar is not only a lot of work but also a hindrance to other work due to the standing of the pillar.
【0004】さらに、各階の床を施工するためには、全
域にわたって型枠を支保工を仮設する必要があり、建設
コスト、工期面においても課題が多い。
[0004] Further, in order to construct the floor of each floor, it is necessary to temporarily support the formwork throughout the entire area, and there are many problems in terms of construction cost and construction period.
【0005】また、その躯体の構築はこれまで地上から
掘り下げる開先工法でおこなわれているが、掘削中は地
上道路の通行を確保するため路面覆工を支える中間杭と
よばれる鋼製杭が林立しているために掘削機械の施工性
が低下し、コストアップの要因となっている。
[0005] In addition, the construction of the frame has been performed by a groove construction method of digging from the ground so far. During excavation, a steel pile called an intermediate pile for supporting road surface lining to secure traffic on the ground road is used. Due to the forest, the workability of the excavator is reduced, which is a factor of cost increase.
【0006】この発明は、以上の課題を解決するために
なされたもので、特に都市部における地下構造物の建設
に際し、空間効率および施工性の向上、さらには建設費
の低減と工期の短縮化を可能にした地下構造物およびそ
の構築工法を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and particularly when constructing an underground structure in an urban area, improves space efficiency and workability, and further reduces construction costs and shortens the construction period. An object of the present invention is to provide an underground structure and a construction method for the underground structure.
【0007】[0007]
【課題を解決するための手段】以上の課題を解決するた
めに、この発明に係る地下構造物は、所定の間隔を有し
て構築された地下連続壁とこの地下連続壁の間に、上か
ら下に順に前期地下連続壁に支持させてそれぞれアーチ
頂版と中間階床と底版床とを構築してある地下構造物に
おいて、アーチ頂版と中間階床は、地価連続壁の内側に
それぞれ突設されたブラケットの上に載置して支持さ
れ、底版床の両端は地下連続壁の内側にそれぞれ突設さ
れた底版支承体の下側に当接されてあり、ブラケットと
底版支承体は地下連続壁の内側に補強プレートも添え付
けた上に鉄筋結合部材を介して地下連続壁と一体化する
よう形成したものである。
Means for Solving the Problems In order to solve the above problems, an underground structure according to the present invention comprises an underground continuous wall constructed at a predetermined interval and an underground continuous wall between the underground continuous walls. The arch top slab, the middle floor, and the bottom slab are constructed in such a way that the arch top slab, the middle floor, and the bottom slab are respectively supported by the basement continuation wall in order from the bottom to the bottom. It is placed and supported on the protruding bracket, and both ends of the bottom slab are abutted on the underside of the bottom slab support projecting inside the underground continuous wall, respectively, and the bracket and the bottom slab support are A reinforcing plate is also attached to the inside of the underground continuous wall, and is formed so as to be integrated with the underground continuous wall via a reinforcing bar connecting member.
【0008】また、この発明に係る地下構造物の構築工
法は、地下連続壁を所定の間隔を有して構築し、次にこ
の地下連続壁間の地表面を覆工し、かつその下側地盤を
アーチ頂版と中間階床を構築する位置まで掘り下げ、前
記地下連続壁のコンクリートの表面を削って、予め埋設
された補強プレートを露出させ、この補強プレートの側
部にブラケットを鉄筋結合材を介して一体的に構築し、
ブラケットにアーチ頂板を中間階床を載置させ、さらに
中間階床の下側を掘り下げ、地下連続壁のコンクリート
の表面を削って、予め埋設されている補強プレートを露
出させ、補強プレートの側部に底版支承体を鉄筋結合材
を介して地下連続壁と一体的に構築し、この底版支承体
の下側に底版床を当接して根切り底に構築することを特
徴とするものである。
In the construction method of an underground structure according to the present invention, an underground continuous wall is constructed at a predetermined interval, and then the ground surface between the underground continuous walls is covered, and the underside of the underground continuous wall is laid. The ground is dug down to the position where the arch top plate and the middle floor are to be constructed, and the concrete surface of the underground continuous wall is shaved to expose the reinforcing plate buried in advance. Built together through
Place the arch top plate on the bracket on the middle floor, dig down the lower floor of the middle floor, cut the concrete surface of the basement continuous wall, expose the reinforcing plate buried in advance, side of the reinforcing plate In addition, a bottom plate support is constructed integrally with the underground continuous wall via a reinforcing bar connecting material, and a bottom plate floor is brought into contact with a lower side of the bottom plate support to be constructed at a root cutting bottom.
【0009】[0009]
【発明の実施の形態】発明の実施の形態1. 図1と図2は、地下鉄の駅として構築された地下構造物
を示し、図において地盤中に地下連続壁1が所定の間隔
を有して平行に構築され、この地下連続壁1,1間にア
ーチ頂版2とこのアーチ頂版2の下側に位置して中間階
床3がそれぞれ構築され、さらに中間階床3の下方に底
版床4が構築されている。かくして、左右の地下連続壁
1,1とアーチ頂版2と中間階床3と底版床4とから地
下構造物Aが構築され特に中間階床3の上側空間Bは地
下鉄の乗降客が集中するコンコースとして利用され、ま
た底版床4の上側空間Cは電車の軌道を敷設するための
道床と電車に人が乗り降りするためのプラットホームと
してそれぞれ利用される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of the Invention 1 and 2 show an underground structure constructed as a subway station. In the figure, an underground continuous wall 1 is constructed in the ground in parallel with a predetermined interval, and the underground continuous wall 1, 1 An arch top plate 2 and an intermediate floor 3 are located below the arch top plate 2, respectively, and a bottom floor 4 is constructed below the intermediate floor 3. Thus, the underground structure A is constructed from the left and right underground continuous walls 1, 1 and the arch top slab 2, the middle floor 3 and the bottom slab 4, and in particular, the upper space B of the middle floor 3 attracts passengers of the subway. The space C above the floor 4 is used as a track for laying the track of the train and as a platform for people to get on and off the train.
【0010】地下連続壁1と底版床4は場所打ちコンク
リートによって構築され、アーチ頂版2は場所打ちコン
クリートまたはPCコンクリートによって構築され、特
にアーチ頂版の上側面と底床板4の下側面にはアスファ
ルト放水やシート防水などによる防水層5が形成されて
いる。
The underground continuous wall 1 and the bottom slab 4 are constructed of cast-in-place concrete, and the arch top slab 2 is constructed of cast-in-place concrete or PC concrete. The waterproof layer 5 is formed by asphalt water discharge, sheet waterproof, or the like.
【0011】中間階床3はH形鋼などの鉄骨材からなる
床組6の上に、例えばPC板を敷設したり、あるいは床
組6の上に鋼製床板を敷設した上にコンクリートを打設
する等して構築されている。その際特に、隣接する地下
連続壁1,1間に床組6の構成部材としてH形鋼などの
鉄骨材からなる鉄骨ばり6aが架け渡されている。ま
た、中間階床3はアーチ頂版2から所定間隔に垂設され
た複数の柱7で吊って支持されている。
The intermediate floor 3 is, for example, a PC board laid on a floor set 6 made of a steel frame material such as an H-section steel, or a steel floor board is laid on the floor set 6 and concrete is cast thereon. It is constructed by installing. In this case, in particular, a steel beam 6a made of a steel frame material such as an H-beam is bridged between the adjacent underground continuous walls 1 and 1 as a constituent member of the floor set 6. The intermediate floor 3 is suspended and supported by a plurality of columns 7 suspended from the arch top plate 2 at predetermined intervals.
【0012】アーチ頂版2と中間階床3は地下連続壁1
の内側にそれぞれ突設されたブラケット8の上に両端を
載置して支持され、底版床4の両端は地下連続壁1の内
側にそれぞれ突設された底版支承体9の下側に当接して
設置され、地下水の浮力などで浮き上がらないようにし
てある。
The arch top plate 2 and the middle floor 3 are composed of an underground continuous wall 1
Both ends of the bottom slab 4 are supported by placing both ends on a bracket 8 projecting from the inside of the base plate. It is installed so that it does not float due to the buoyancy of groundwater.
【0013】また、アーチ頂版2および中間階床3の両
端部とブラケット8との当接部、底版床4の両端部と底
版支承体9との当接部には止水用の支承ゴム10がそれ
ぞれ介在され、さらに地下連続壁1とアーチ頂版2との
当接部には止水用のコーキング材11が充填されてい
る。
Further, abutment portions between the both ends of the arch top plate 2 and the intermediate floor 3 and the bracket 8 and contact portions between the both end portions of the bottom plate floor 4 and the bottom plate bearing member 9 are provided with rubber bearings for stopping water. 10 are interposed, and a contact portion between the underground continuous wall 1 and the arch top plate 2 is filled with a caulking material 11 for stopping water.
【0014】ブラケット8と底版支承体9は現場施工に
よる鉄筋コンクリートまたは鉄骨鉄筋コンクリートによ
って形成され、地下連続壁1の内側に補強プレート12
を添え付けた上に複数の鉄筋結合部材13を介して地下
連続壁1と一体化されている。なお、ブラケット8と底
版支承体9は地下連続壁1の長手方向に連続して、また
は所定間隔に突設してもよく、またブラケット8と底版
支承体9はプレキャストと製品として工場生産されたも
のを後付けしてもよい。
The bracket 8 and the bottom slab support 9 are made of reinforced concrete or steel reinforced concrete constructed on site, and a reinforcing plate 12 is provided inside the underground continuous wall 1.
And is integrated with the underground continuous wall 1 via a plurality of reinforcing bar connecting members 13. The bracket 8 and the bottom plate support 9 may be continuously provided in the longitudinal direction of the underground continuous wall 1 or protruded at a predetermined interval. The bracket 8 and the bottom plate support 9 are factory-produced as a precast product. Things may be retrofitted.
【0015】このような構成において、アーチ頂版2に
作用する上からの土荷重はアーチ頂版2のアーチ作用に
よって左右地下連続壁1に伝えられる。その際、床組6
を構成するために左右地下連続壁1,1間に架け渡され
た鉄骨ばり6aは引っ張り材として働く。
In such a configuration, the soil load from above acting on the arch top plate 2 is transmitted to the left and right underground continuous wall 1 by the arch action of the arch top plate 2. At that time, floor set 6
The steel beam 6a bridged between the left and right underground continuous walls 1 and 1 serves as a tension member.
【0016】発明の実施の形態2. 次に、この発明に係る地下構造物の構築工法を順を追っ
て説明する。
Embodiment 2 of the Invention Next, the construction method of the underground structure according to the present invention will be described step by step.
【0017】最初に、左右の地下連続壁1を場所打ち
鉄筋コンクリート工法などで構築する。また、地下連続
壁1,1間に中間受け杭14を地下連続壁1の横方向に
所定間隔に打ち込む。さらに、左右地下連続壁1,1間
の地表面をPC板または鋼製床板などの覆工材15で覆
工する。その際、左右地下連続壁1と中間受け杭14を
覆工材15の支持部として覆工材14を施工する。
First, the left and right underground continuous walls 1 are constructed by a cast-in-place reinforced concrete method or the like. Further, the intermediate receiving pile 14 is driven between the underground continuous walls 1 and 1 at predetermined intervals in the lateral direction of the underground continuous wall 1. Further, the ground surface between the left and right underground continuous walls 1 and 1 is covered with a covering material 15 such as a PC board or a steel floor board. At that time, the lining material 14 is constructed by using the left and right underground continuous walls 1 and the intermediate receiving pile 14 as supporting portions of the lining material 15.
【0018】次に、覆工材15の下側の地盤を徐々に
掘り下げる。その際、左右地下連続壁1と中間受け杭1
4間に切り梁16を架け渡して左右地下連続壁1を支持
しながらブラケット8の突設位置まで地盤全体を掘り下
げる。
Next, the ground below the lining material 15 is gradually dug down. At that time, left and right underground continuous wall 1 and intermediate receiving pile 1
The whole ground is dug down to the projecting position of the bracket 8 while supporting the left and right underground continuous walls 1 by bridging the cutting beams 16 between the four.
【0019】次に、左右地下連続壁1の内側にブラケ
ット8をそれぞれ突設する。その際ブラケット8の突設
部分のコンクリート表面を削ってこの部分に予め埋設さ
れた補強プレート12を露出させる。そして、この補強
プレート12の側部にブラケット8を複数の鉄筋結合部
材13を介して地下連続壁1と一体的に構築する。
Next, brackets 8 are respectively protruded inside the left and right underground continuous walls 1. At this time, the concrete surface of the protruding portion of the bracket 8 is shaved to expose the reinforcing plate 12 previously embedded in this portion. Then, a bracket 8 is integrally formed on the side of the reinforcing plate 12 with the underground continuous wall 1 via a plurality of reinforcing bar connecting members 13.
【0020】次に、左右地下連続壁1のブラケット
8,8間に鉄骨ばり6aを架け渡して中間階床3の床組
6を構築し、その上にPC板を敷設する等して床を構築
する。また、鉄骨ばりの上に柱7を構築する。そして、
床組6の上側にアーチ頂版2を構築し、その両端をブラ
ケット8にそれぞれ支持させる。また、ブラケット8と
アーチ頂版2との当接部にゴム支承10を、地下連続壁
1とアーチ頂版2との当接部にコーキング材11をそれ
ぞれ施工し、さらにアーチ頂版2の上に防水層5を施工
する。なおその際、床組6の鉄骨ばり6aは左右地下連
続壁1を支持する切り梁として利用でき、また柱7はア
ーチ頂版2を構築する際の支保工として利用できる。ま
た、中間階床3の施工に際し、左右地下連続壁1のブラ
ケット8,8間に鉄骨ばり6aのみを架け渡し、床面の
施工は底版床4を施工した後に行ってもよい。
Next, a steel frame 6a is bridged between the brackets 8 and 8 of the left and right underground continuous walls 1 to construct the floor set 6 of the intermediate floor 3, and a PC board is laid thereon to lay the floor. To construct. The pillar 7 is constructed on the steel beam. And
The arch top plate 2 is constructed on the upper side of the floor set 6, and both ends thereof are respectively supported by the brackets 8. Further, a rubber bearing 10 is applied to a contact portion between the bracket 8 and the arch top plate 2, and a caulking material 11 is applied to a contact portion between the underground continuous wall 1 and the arch top plate 2. The waterproof layer 5 is applied to the waterproofing layer. In this case, the steel beam 6a of the floor set 6 can be used as a beam for supporting the left and right underground continuous wall 1, and the column 7 can be used as a support when the arch top plate 2 is constructed. When the intermediate floor 3 is constructed, only the steel beam 6a may be bridged between the brackets 8 and 8 of the left and right underground continuous walls 1, and the floor may be constructed after the bottom slab 4 is constructed.
【0021】次に、アーチ頂版2の両側を埋め戻し土
またはこれに準ずる材料で埋め戻し、さらに中間受け杭
14を受け変えた後、切り梁16を撤去する。そしてさ
らに、中間杭14を全て撤去し、残りの部分を埋め戻
し、そして併せて覆工材15を撤去する。この時点で、
アーチ頂版2の上側の土荷重はアーチ頂版2のアーチ効
果によりブラケット8を介して左右地下連続壁1に伝え
られる。
Next, both sides of the arch top slab 2 are backfilled with backfill soil or a material similar thereto, and after the intermediate receiving pile 14 is replaced, the cutting beams 16 are removed. Further, all of the intermediate piles 14 are removed, the remaining portion is backfilled, and the lining material 15 is also removed. at this point,
The earth load on the upper side of the arch top plate 2 is transmitted to the left and right underground continuous wall 1 via the bracket 8 by the arch effect of the arch top plate 2.
【0022】次に、床組6の下側の地盤を底版支承体
9の突設位置まで地盤全体に渡ってさらに掘り下げる。
その際、床組6の下側にこれを支持するための支柱が全
くないので、根切り作業をきわめて効率的に行うことが
できる。
Next, the ground on the lower side of the floor set 6 is further dug down to the projecting position of the bottom slab support 9 over the entire ground.
At this time, since there is no support for supporting the floor set 6 below the floor set 6, the root cutting operation can be performed very efficiently.
【0023】次に、底版支承体9の突設位置まで根切
りが完了したら、根切り底に均しコンクリートを所定の
厚さに打設し、硬化後その上に防水層5を施工する。そ
して、地下連続壁1の内側に底版支承体9をそれぞれ施
工する。底版支承体9の施工はブラケット8の場合と全
く同じ要領で行う。
Next, when the excavation is completed to the projecting position of the bottom slab support body 9, leveling concrete is poured into the excavated bottom to a predetermined thickness, and after hardening, the waterproof layer 5 is applied thereon. Then, the bottom plate bearing members 9 are respectively constructed inside the underground continuous wall 1. The bottom plate support 9 is constructed in exactly the same manner as the bracket 8.
【0024】次に、防水層5の上に底版床4を施工す
る。その際、底版支承体9と底版床4との当接部にゴム
支承10も併せて施工する。そして、底版床4の上に電
車の軌道を敷設し、ホームを構築する。
Next, the floor slab 4 is constructed on the waterproof layer 5. At this time, a rubber bearing 10 is also installed on the contact portion between the bottom plate support 9 and the bottom plate floor 4. Then, a train track is laid on the bottom slab 4 to construct a platform.
【0025】[0025]
【発明の効果】この発明に係る地下構造物およびその構
築工法は以上説明した構成からなり、特に左右地下構造
物壁間の一番上側にアーチ頂版が構築されているので、
このアーチ頂版のアーチ効果により上からの土荷重と左
右からの土圧に対して有効に対処でき、またアーチ頂版
を支えるための柱も不要なことから地下空間を有効に利
用でき、また必要施設の配置も容易に行うことができ
る。そして、アーチ頂版と中間階床は地下連続壁の内側
にそれぞれ突設されたブラケットの上に載置されてある
ので、確実に支持され、底版床の両端は地下連続壁の内
側にそれぞれ突設された底版支承体の下側に当接されて
あるので、地下水の浮力などで浮き上がらないようにな
っている。
The underground structure according to the present invention and the construction method thereof have the above-described construction. In particular, since the arch top plate is constructed at the uppermost portion between the left and right underground structure walls,
The arch effect of this arch top plate can effectively deal with earth load from above and earth pressure from left and right, and since there is no need for pillars to support the arch top plate, the underground space can be used effectively, Necessary facilities can be easily arranged. Since the arch top plate and the middle floor are placed on brackets protruding inside the basement continuous wall, they are securely supported, and both ends of the bottom plate floor protrude inside the basement continuous wall, respectively. Since it is in contact with the lower side of the bottom plate support body, it does not float due to the buoyancy of groundwater.
【0026】またブラケットと底版支承体は地下連続壁
の内側に補強プレートを添え付けた上に鉄筋結合部材を
介して地下連続壁と一体化するよう形成してあるので、
地下連続壁から強固に突設されたものであり、したがっ
て底版床及びアーチ頂版も強固に設置され得るのであ
る。
Further, the bracket and the bottom plate support body are formed so that a reinforcing plate is attached to the inside of the underground continuous wall and integrated with the underground continuous wall via a reinforcing bar connecting member.
Since it is protruded firmly from the underground continuous wall, the bottom slab and the arch top slab can also be firmly installed.
【0027】また、施工に際しては最初に地下連続壁を
所定の間隔を有して構築し、次にこの地下連続壁間の地
表面を覆工し、かつその下側地盤をアーチ頂版と中間階
床を構築する位置まで掘り下げ、次に地下連続壁間に中
間階床とアーチ頂版を順に構築し、次に中間階床の下側
地盤をさらに掘り下げ、その根切り底に底版床を構築す
るので、地下構造物をきわめて効率的に構築でき、施工
性の向上と工期の大幅な短縮化が可能になる。その際特
に、地下連続壁は根切り工事の山留め壁として、中間階
床の床組は山留め壁の切り梁としてそれぞれ利用するこ
とにより、きわめて効率的かつ経済的施工が可能にな
る。そして、アーチ頂版と中間階床及び底版床はそれぞ
れ地下連続壁より突設されたブラケット及び床版支承体
に載置あるいは当接して設置するので、位置決めが容易
であり、短期間に施工できる。また、地中連続壁間の地
表面は根切り前に予め覆工するので、施工中、地上の交
通に支障を来たすこともない。
At the time of construction, an underground continuous wall is first constructed at a predetermined interval, then the ground surface between the underground continuous walls is lining, and the lower ground is interposed between the arch top slab and the middle. Dig down to the location where the floor is to be built, then build the middle floor and arch top slab in order between the continuous basement walls, then dig further down the lower ground of the middle floor, and build the bottom slab floor at the root of the root Therefore, the underground structure can be constructed extremely efficiently, and the workability can be improved and the construction period can be significantly shortened. In this case, in particular, the underground continuous wall is used as a retaining wall for the excavation work, and the floor set of the intermediate floor is used as a beam for the retaining wall, thereby enabling extremely efficient and economical construction. Since the arch top plate, the middle floor, and the bottom plate floor are respectively placed or abutted on brackets and floor slabs protruding from the basement continuous wall, positioning is easy, and construction can be performed in a short time. . In addition, since the ground surface between the underground continuous walls is lining before root cutting, there is no hindrance to ground traffic during construction.
【図面の簡単な説明】[Brief description of the drawings]
【図1】地下鉄の駅として構築された地下構造物の縦断
面図である。
FIG. 1 is a longitudinal sectional view of an underground structure constructed as a subway station.
【図2】(a)は地下連続壁としてアーチ頂版および中
間階床との接合部を示す縦断面図、(b)は地下連続壁
と底版床との接合部を示す縦断面図である。
FIG. 2A is a longitudinal sectional view showing a joint between an arch top plate and an intermediate floor as an underground continuous wall, and FIG. 2B is a longitudinal sectional view showing a joint between an underground continuous wall and a bottom slab. .
【図3】(a),(b),(c),(d),(e)、
(f)は地下構造物の施工方法を示す工程図である。
FIG. 3 (a), (b), (c), (d), (e),
(F) is a process drawing showing the construction method of the underground structure.
【符号の説明】[Explanation of symbols]
1…地下連続壁、2…アーチ頂版、3…中間階床、4…
底版床、5…防水層、6…床組、6a…鉄骨ばり、7…
柱、8…ブラケット、9…底版支承体、10…支承ゴ
ム、11…コーキング材、12…補強プレート、13…
鉄筋結合部材、14…中間受け杭、15…覆工材、16
…切り梁
1 ... basement continuous wall, 2 ... arch top version, 3 ... middle floor, 4 ...
Bottom plate floor, 5 ... waterproof layer, 6 ... floor set, 6a ... steel beam, 7 ...
Column, 8 ... Bracket, 9 ... Bottom plate support, 10 ... Bearing rubber, 11 ... Caulking material, 12 ... Reinforcement plate, 13 ...
Reinforcing bar connecting member, 14: middle receiving pile, 15: lining material, 16
… Cut beams
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭64−83799(JP,A) 特開 平7−243269(JP,A) 特開 平5−306530(JP,A) 特開 平1−239225(JP,A) (58)調査した分野(Int.Cl.7,DB名) E02D 29/045 E02D 29/00 E21D 13/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-83799 (JP, A) JP-A-7-243269 (JP, A) JP-A-5-306530 (JP, A) JP-A-1- 239225 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E02D 29/045 E02D 29/00 E21D 13/00

Claims (2)

    (57)【特許請求の範囲】(57) [Claims]
  1. 【請求項1】 所定の間隔を有して構築された地下連続
    壁とこの地下連続壁の間に、上から下に順に前記地下連
    続壁に支持させてそれぞれアーチ頂版と中間階床と底版
    床とを構築してある地下構造物において、アーチ頂版と
    中間階床は、地下連続壁の内側にそれぞれ突設されたブ
    ラケットの上に載置して支持され、底版床の両端は地下
    連続壁の内側にそれぞれ突設された底版支版承体の下側
    に当接されてあり、ブラケットと底版支承体は、地下連
    続壁の内側に補強プレートを添え付けた上に鉄筋結合部
    材を介して地下連続壁と一体化してなることを特徴とす
    る地下構造物。
    1. An arch top plate, an intermediate floor and a bottom plate which are supported between the underground continuous walls constructed at predetermined intervals and between the underground continuous walls in order from top to bottom, respectively. In the underground structure where the floor is built, the arch top plate and
    Intermediate floors are provided with protruding blocks inside the basement continuous wall.
    Placed on a racket and supported, both ends of the bottom slab are underground
    The lower side of the stencil support body protruding inside the continuous wall
    Bracket and bottom plate support are underground
    A reinforcing plate is attached to the inside of the connecting wall.
    An underground structure characterized by being integrated with an underground continuous wall via a material .
  2. 【請求項2】 地下連続壁を所定の間隔を有して構築
    し、次にこの地下連続壁間の地表面を覆工し、かつその
    下側地盤をアーチ頂版と中間階床を構築する位置まで掘
    り下げ、前記地下連続壁のコンクリートの表面を削っ
    て、予め埋設された補強プレートを露出させ、この補強
    プレートの側部にブラケットを鉄筋、結合材を介して一
    体的に構築し、ブラケットにアーチ頂版と中間階床を載
    置させさ、さらに中間階床の下側を掘り下げ、地下連続
    壁のコンクリートの表面を削って、予め埋設されている
    補強プレートの側部に底版支承体を鉄筋結合材を介して
    地下連続壁と一体的に構築し、この底版支承体の下側に
    底版床を当接して構築することを特徴とする地下構造物
    の構築工法。
    2. An underground continuous wall is constructed at a predetermined interval, and then the ground surface between the underground continuous walls is covered, and the lower ground is constructed as an arch top slab and an intermediate floor. And dig into the basement wall to cut the concrete surface.
    To expose the reinforcing plate buried in advance,
    Place the bracket on the side of the plate with reinforcing steel and bonding material.
    Build physically, mount arch top plate and middle floor on bracket
    Location is allowed, yet dig into the underside of the intermediate floor, underground continuous
    The concrete surface of the wall is shaved and pre-buried
    Attach the bottom plate support to the side of the reinforcing plate via the reinforcing material
    It is constructed integrally with the underground continuous wall, and under the bottom support
    A method of constructing an underground structure, which is constructed by abutting the bottom slab .
JP31806497A 1997-11-19 1997-11-19 Underground structure and its construction method Expired - Fee Related JP3327191B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31806497A JP3327191B2 (en) 1997-11-19 1997-11-19 Underground structure and its construction method

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Application Number Priority Date Filing Date Title
JP31806497A JP3327191B2 (en) 1997-11-19 1997-11-19 Underground structure and its construction method

Publications (2)

Publication Number Publication Date
JPH11152761A JPH11152761A (en) 1999-06-08
JP3327191B2 true JP3327191B2 (en) 2002-09-24

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