JP2835416B2 - Underground structure and its construction method - Google Patents
Underground structure and its construction methodInfo
- Publication number
- JP2835416B2 JP2835416B2 JP5084109A JP8410993A JP2835416B2 JP 2835416 B2 JP2835416 B2 JP 2835416B2 JP 5084109 A JP5084109 A JP 5084109A JP 8410993 A JP8410993 A JP 8410993A JP 2835416 B2 JP2835416 B2 JP 2835416B2
- Authority
- JP
- Japan
- Prior art keywords
- underground structure
- members
- underground
- pipe body
- structural members
- 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.)
- Expired - Lifetime
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は鉄道線路下や道路下等の
地中に築造される地下構造物とその築造方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground structure constructed underground such as under a railway line or under a road and a method of constructing the underground structure.
【0002】[0002]
【従来の技術】従来から、例えば鉄道線路下の地中に、
該鉄道線路に対して交差する方向に通路等を形成するた
めの地下構造物を築造するには、図14、15に示すよう
に、鉄道線路Aを挟んだ両側に立坑B、Cを掘削したの
ち、地盤と接する面側に平板状のフリクションカット部
材Dを配設してなる多数本の鋼製角パイプEを両立坑
B、C間の地中における計画地下構造物の断面位置に相
当する部分の上半部に互いに並列状態で圧入する。2. Description of the Related Art Conventionally, for example, underground under a railway line,
In order to construct an underground structure for forming a passage or the like in a direction crossing the railway line, shafts B and C were excavated on both sides of the railway line A as shown in FIGS. Thereafter, a number of steel square pipes E each having a flat friction cut member D disposed on the surface side in contact with the ground correspond to the cross-sectional position of the planned underground structure in the ground between both shafts B and C. Press into the upper half of the part in parallel with each other.
【0003】次いで、これらのパイプE群の後端面に、
前端側に掘削刃Hを装着している地下構造物Fの前端面
上半部を当接させると共に上記各フリクションカット部
材Dの後端を一方の立坑B側に固定したのち、地下構造
物Fの後端をジャッキGにより押し進めるか、或いは適
宜な牽引手段で牽引することにより、掘削刃Hで前方の
地盤を掘削しながらフリクションカット部材Dをガイド
して地下構造物Fを推進させてパイプE群と置換するこ
とにより築造している。[0003] Then, on the rear end face of these pipes E group,
After the upper half of the front end surface of the underground structure F having the excavating blade H attached to the front end side, and the rear end of each of the friction cut members D is fixed to one of the shafts B, the underground structure F By pushing the rear end of the pipe E with the jack G or by pulling it with an appropriate towing means, the drilling blade H excavates the ground in front, guides the friction cut member D to propel the underground structure F, and pipes E It is built by replacing with a group.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな地下構造物の築造方法では、地盤を掘削しつつパイ
プE群を一斉に押し進めながら地下構造物全体を推進さ
せるものであるから、地下構造物が大断面になればなる
程、さらに長尺になればなる程、大きな推進力或いは牽
引力を必要として設備費が高騰するばかりでなく、作業
能率が低下するという問題点があった。However, in such a method of constructing an underground structure, since the entire underground structure is propelled while excavating the ground and simultaneously pushing the group of pipes E, the underground structure is The larger the cross section becomes, the longer it becomes, the larger the propulsion or traction force is required, so that not only the equipment cost rises, but also the work efficiency decreases.
【0005】本発明はこのような問題点に鑑みてなされ
たもので、大断面の地下構造物であっても比較的小さい
推進力又は牽引力によって地中に能率よく埋設し得るよ
うにした構造を有する地下構造物とその築造方法の提供
を目的とするものである。The present invention has been made in view of such problems, and has a structure in which even a large-sized underground structure can be efficiently buried in the ground with relatively small propulsion or traction. The purpose of the present invention is to provide an underground structure and a method for constructing the underground structure.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の地下構造物は、少なくとも上下又は左右に
分割された構造物部材の組み合わせ接合によって形成さ
れた地下構造物であって、構造物部材同士の接合端面に
は互いに対向して中空部を形成する囲い壁部材が全長に
亘って一体に取付けられてあり、これらの囲い壁部材の
連通中空部間にコンクリートを打設して構造物部材同士
を一体化した構造としている。In order to achieve the above object, an underground structure according to the present invention is an underground structure formed by combining and joining structural members at least vertically or horizontally. Enclosing wall members that oppose each other and form a hollow portion are integrally attached to the joining end surfaces of the structural members over the entire length, and concrete is cast between the communicating hollow portions of these enclosing wall members. It has a structure in which structural members are integrated with each other.
【0007】また、このような地下構造物の築造方法と
しては、地中の計画地下構造物の断面位置にパイプ体を
並設状態で埋設したのち、少なくとも上下又は左右に地
下構造物を分割した形状を有し且つその分割端面に囲い
壁部材を全長に亘って一体に取付けてなる分割構造物部
材の前端面を上記並設パイプ体の後端面に当接し、これ
らの構造物部材を並設パイプ体と置換することにより地
中に埋設し、しかるのち、これら囲い壁部材の連通した
中空部にコンクートを打設して構造物部材同士を一体化
させることを特徴とするものである。Further, as a method of constructing such an underground structure, a pipe body is buried in a cross-sectional position of a planned underground structure underground, and then the underground structure is divided at least vertically or horizontally. A front end face of a divided structural member having a shape and having an enclosing wall member integrally attached to the divided end face thereof over its entire length abuts on a rear end face of the juxtaposed pipe body, and these structural members are juxtaposed. It is characterized in that it is buried in the ground by replacing it with a pipe body, and thereafter, concrete is cast in a hollow portion communicating with these surrounding wall members to integrate the structural members with each other.
【0008】[0008]
【作用】地下構造物は、少なくとも上下または左右に分
割された構造物部材からなるので、製作や運搬等の取扱
性が容易となるばかりでなく、これらの構造物部材の分
割端面には、中空の囲い壁部材が全長に亘って一体的に
取付けられているので、各構造物部材が互いに摺接した
囲い壁部材をガイドとして夫々長さ方向に単独的に移動
させることができる。[Function] Since the underground structure is made up of at least vertically or horizontally divided structural members, not only is it easy to handle such as production and transportation, but also the divided end faces of these structural members are hollow. Are integrally mounted over the entire length, so that each of the structural members can be independently moved in the length direction by using the surrounding wall members slidingly in contact with each other as guides.
【0009】従って、地中の計画地下構造物の断面位置
にパイプ体を並設状態で埋設したのち、この並設パイプ
体の後端面に構造物部材を組み合わせてなる地下構造物
の前端面を当接させ、この状態から各構造物部材を単独
的に順次推進させると、推進される構造物部材の前端面
側のパイプ体群のみが押し進められると共に該構造物部
材もその囲い壁部材を隣接する構造物部材の囲い壁部材
に摺接させながら比較的小さい推進力でもって地中に埋
設させることができる。Therefore, after the pipes are buried side by side at the cross-sectional position of the planned underground structure underground, the front end face of the underground structure formed by combining the structural members on the rear end face of the side-by-side pipe body is arranged. When each of the structural members is sequentially and individually propelled from this state, only the pipe body group on the front end face side of the propelled structural member is pushed forward, and the structural member also adjoins the surrounding wall member. It can be buried in the ground with a relatively small propulsion force while being in sliding contact with the surrounding wall member of the structural member.
【0010】こうして各構造物部材を順次推進させなが
ら対応するパイプ体群と置換することによって、これら
の分割構造物部材からなる地下構造物が地中に埋設され
る。しかるのち、互いに密接した隣接する構造物部材の
囲い壁部材に対向壁部が存在する場合にはその対向壁部
を除去してこれらの囲い壁部材の内部を連通させ、その
内部間にコンクートを打設して構造物部材同士を一体化
させることにより地下構造物を完成する。この際、囲い
壁部材の中空内部を作業空間に利用して上記のような囲
い壁部材同士の一体化作業を行うことができるものであ
る。In this way, by substituting the corresponding structural members while sequentially propelling the structural members, the underground structure composed of these divided structural members is buried underground. Thereafter, if there is an opposing wall portion in the enclosing wall member of the adjacent structural member that is in close contact with each other, the opposing wall portion is removed to communicate the interior of these enclosing wall members, and a concrete is provided between the interiors. The underground structure is completed by casting and integrating structural members. At this time, the above-described work of integrating the surrounding wall members can be performed by using the hollow interior of the surrounding wall member as a working space.
【0011】[0011]
【実施例】本発明の実施例を図面について説明すると、
図1は断面矩形状の地下構造物の築造方法を示し、図2
は築造された地下構造物を示すもので、この図2におい
て地下構造物は上部地下構造物部材1と下部地下構造物
部材2とから構成されてあり、上部地下構造物部材1は
天壁部1aの両側端に下方に向かって側壁上部1b、1bを一
体に設けてなる逆U字状に形成され、下部地下構造物部
材2は上記天壁部1aと同一幅を有する床壁部2aの両側端
に上方に向かって側壁下部2b、2bを一体に設けてなるU
字状に形成されてある。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 shows a method of constructing an underground structure having a rectangular cross section, and FIG.
In FIG. 2, the underground structure is composed of an upper underground structure member 1 and a lower underground structure member 2, and the upper underground structure member 1 is a top wall portion. The lower underground structural member 2 is formed in an inverted U-shape in which upper side walls 1b and 1b are integrally provided downward on both side ends of the lower wall 1a. U having lower side walls 2b, 2b integrally provided on both side ends upward.
It is formed in the shape of a letter.
【0012】さらに、これらの上下地下構造物部材1、
2の対向接合端面、即ち、側壁上部1b、1bと側壁下部2
b、2bとの対向端面には、予め、図5、6 に示すよう
に中空の囲い壁部材3、4を全長に亘って夫々固定して
あり、地下構造物の築造時には後述するように、これら
の囲い壁部材3、4の対向壁板部3a、4aを互いに摺接さ
せながら上下地下構造物部材1、2を地中の所定位置ま
で埋設したのち、該対向壁板部3a、4aを切除し、連通し
た上下囲い壁部材3、4間にコンクリート5を打設する
ことによって、上下地下構造物部材1、2を一体化し、
地下構造物を築造しているものである。Further, these upper and lower underground structural members 1,
2 opposing joint end surfaces, ie, upper side walls 1b, 1b and lower side wall 2
As shown in FIGS. 5 and 6, hollow enclosing wall members 3 and 4 are respectively fixed to the end faces facing b and 2b in advance over the entire length, and as described later when constructing an underground structure, After burying the upper and lower underground structural members 1 and 2 to a predetermined position in the ground while sliding the opposing wall plate portions 3a and 4a of the surrounding wall members 3 and 4 together, the opposing wall plate portions 3a and 4a are removed. By cutting and placing concrete 5 between the communicating upper and lower surrounding wall members 3 and 4, the upper and lower underground structural members 1 and 2 are integrated,
It is building an underground structure.
【0013】次に、上記のような構造を有する上下地下
構造物部材1、2を鉄道線路A等の下方の地中に埋設し
て地下構造物を築造する方法について述べる。まず、地
下構造物を構築すべき長さ間隔を存して立坑B、Cを掘
削したのち、多数本の鋼製角パイプ体6を両立坑B、C
間の地中における計画地下構造物の断面位置に互いに並
列状態で水平に圧入する。パイプ体6の幅は地下構造物
の壁厚に略等しく形成されていると共に、長さは築造す
べき地下構造物が長い場合にはその長さを複数分割した
一定寸法に形成されてあり、さらにパイプ体同士の接合
面には図10、11に示すように、互いに係合可能な断面L
字状の係合突条12、13を突設してある。また、地盤と接
する面側において、少なくとも地盤を移動させてはなら
ない面側には帯状鋼板よりなるフリクションカット部材
7が載置されている。Next, a method of constructing an underground structure by embedding the upper and lower underground structure members 1 and 2 having the above-described structure in the ground under the railway track A or the like will be described. First, the shafts B and C are excavated with a length interval at which an underground structure is to be constructed, and then a number of steel square pipe bodies 6 are connected to the shafts B and C.
Horizontally press in parallel with each other at the cross-sectional position of the planned underground structure in the ground. The width of the pipe body 6 is formed to be substantially equal to the wall thickness of the underground structure, and the length is formed to have a fixed length obtained by dividing the length of the underground structure to be constructed when the underground structure to be built is long. Further, as shown in Figs.
U-shaped engaging ridges 12 and 13 are provided. A friction cut member 7 made of a strip-shaped steel plate is placed on at least a surface on which the ground is not allowed to move on a surface in contact with the ground.
【0014】一方の立坑Bから他方の立坑Cに向かって
パイプ体6を地中に圧入するには、その内部にオーガー
(図示せず)を挿入して地盤を掘削しながら行われ、一
本のパイプ体6の圧入後、該パイプ体6に接続して次の
パイプ体6を圧入し、これを繰り返すことによって両立
坑B、C間に直状に連結したパイプ体6を埋設する。こ
の時、パイプ体6にフリクションカット部材7が設けら
れている場合には、最初に圧入するパイプ体6のフリク
ションカット部材7のみ、その先端部をパイプ体6の先
端部に溶接等によって一体に固着しておき、それ以後に
圧入するパイプ体6は前後に隣接するフリクションカッ
ト部材7、7の対向端面間を溶接等によって一体に連結
する。The press-fitting of the pipe body 6 from one shaft B to the other shaft C is performed while excavating the ground by inserting an auger (not shown) therein. After the press-fitting of the pipe body 6, the pipe body 6 is connected to the pipe body 6, and the next pipe body 6 is press-fitted. By repeating this, the pipe body 6 connected straight between the shafts B and C is buried. At this time, when the friction cut member 7 is provided on the pipe body 6, only the friction cut member 7 of the pipe body 6 to be first press-fitted is integrally joined to the front end of the pipe body 6 by welding or the like. The pipe body 6 to be press-fitted afterwards is integrally connected by welding or the like between the opposing end faces of the friction cut members 7, 7 which are adjacent in the front and rear.
【0015】さらに、既に埋設したパイプ体6に隣接し
て係合突条12、13同士を係合させながらパイプ体6を上
記同様にして順次圧入、埋設し、この作業を繰り返して
図3に示すように、上記上部地下構造物部材1の天壁部
1aと略同幅の上側パイプ列61(その上面には上方地盤の
移動を防止するためのにフリクションカット部材7が設
けられている)を形成すると共に、該上側パイプ列61の
両端パイプ体6、6の下面に接して下方にパイプ体6を
埋設することにより上部地下構造物部材1の側壁上部1
b、1bの高さに等しい両側上半パイプ列62、62を形成す
る。また、この両側上半パイプ列62、62の下面側に上記
囲い壁部材3、4の断面形状に略等しい外郭形状を有す
る摺接パイプ体6aを圧入、埋設する。Further, the pipes 6 are sequentially press-fitted and buried in the same manner as described above while engaging the engaging ridges 12 and 13 adjacent to the pipe 6 already buried, and this operation is repeated, and FIG. As shown, the top wall portion of the upper underground structure member 1
An upper pipe row 61 having substantially the same width as that of the upper pipe row 1 (a friction cut member 7 is provided on the upper surface thereof to prevent movement of the upper ground) is formed, and both end pipe bodies 6 of the upper pipe row 61 are formed. , 6 is buried below the pipe body 6 in contact with the lower surface of the upper underground structure member 1 so that the upper wall 1
b, forming two upper half pipe rows 62, 62 equal to the height of 1b. A sliding pipe body 6a having an outer shape substantially equal to the cross-sectional shape of the enclosing wall members 3, 4 is press-fitted and embedded in the lower surfaces of the upper half pipe rows 62, 62 on both sides.
【0016】同様にして、この摺接パイプ体6aの下面に
接するようにして該パイプ体6aと同一形状のパイプ体6b
を埋設すると共に、その下面に縦方向に並列するように
して複数本のパイプ体6を圧入、埋設することにより両
側下半パイプ列63、63を形成し、さらに、この両側下半
パイプ列63、63の下端間に横方向に並列するように複数
本のパイプ体6を圧入、埋設して上記上側パイプ列61と
同一幅を有する下側パイプ列64を形成する。この下側パ
イプ列64を形成するパイプ体6にはその上面にフリクシ
ョンカット部材7を配設したなるものが使用される。Similarly, a pipe 6b having the same shape as the pipe 6a is brought into contact with the lower surface of the sliding pipe 6a.
Are buried, and a plurality of pipe bodies 6 are press-fitted and buried in the lower surface thereof in parallel in the longitudinal direction to form lower half pipe rows 63, 63 on both sides. A plurality of pipe bodies 6 are press-fitted and buried between the lower ends of the upper and lower pipe rows 61 so as to form a lower pipe row 64 having the same width as the upper pipe row 61. As the pipe body 6 forming the lower pipe row 64, a pipe body provided with a friction cut member 7 on its upper surface is used.
【0017】こうして、両立坑B、C間に、計画地下構
造物と断面形状が略同一のパイプ列群を形成したのち、
一方の立坑Bに上記上下地下構造物部材1、2を、図5
に示すように、その両側の囲い壁部材3、4の対向面を
摺接させた状態にして配設する。囲い壁部材3、4は図
6に示すように、鋼板を角パイプ形状に屈曲して上記パ
イプ体6a、6bと略同一断面形状に形成されてあり、その
両側壁部3b、4bは側壁上部1bと側壁下部2bの両側面から
適宜寸法だけ突出した状態にして両側部をこれらの側壁
上部1bと側壁下部2bの両側面端部に夫々固着してある。After forming a group of pipes having substantially the same cross-sectional shape as the planned underground structure between the shafts B and C,
The upper and lower underground structure members 1 and 2 are placed in one shaft B as shown in FIG.
As shown in (1), they are arranged with the opposing surfaces of the surrounding wall members 3, 4 on both sides being in sliding contact with each other. As shown in FIG. 6, the enclosing wall members 3, 4 are formed by bending a steel plate into a square pipe shape to have substantially the same cross-sectional shape as the pipe bodies 6a, 6b. Both sides of the side wall 1b and the lower side wall 2b are fixed to the ends of the side walls 1b and the lower side wall 2b, respectively.
【0018】なお、上下地下構造物部材1、2の製作時
にこのような囲い壁部材3、4を一体に設けることは製
作上、困難であるので、これらの地下構造物部材1、2
の製造時に、その側壁上部1bと側壁下部2bの両側面下端
部に鋼板片3c、4cを埋設しておき、製造後に側壁上部1b
と側壁下部2bから突設したこれらの鋼板片3c、4cに囲い
部材3、4の両側壁部3b、4bの屈曲内端部を連結してあ
る。又、上下地下構造物部材1、2の側壁上部1bと側壁
下部2bとの対向端面には囲い壁部材3、4内に向かって
鉄筋8を突設させている。Since it is difficult to integrally provide the surrounding wall members 3 and 4 when manufacturing the upper and lower underground structure members 1 and 2, these underground structure members 1 and 2 are difficult to manufacture.
At the time of manufacture, the steel plate pieces 3c, 4c are buried at the lower end of both sides of the upper side wall 1b and the lower side wall 2b, and after the manufacture, the upper side wall 1b
The bent inner ends of the side walls 3b, 4b of the surrounding members 3, 4 are connected to these steel plate pieces 3c, 4c protruding from the lower part 2b of the side wall. Reinforcing bars 8 protrude into the enclosing wall members 3 and 4 at the opposing end surfaces of the upper and lower underground structural members 1 and 2 with the upper side wall 1b and the lower side wall 2b.
【0019】上下地下構造物部材1、2を上記のように
積み重ね状態に組み合わせると共に上下地下構造物部材
1、2の前端面を地中に埋設しているパイプ列の上下部
の後端面に夫々当接させた状態とする。即ち、上部地下
構造物部材1の天壁部1aの前端面を上側パイプ列61の後
端面に、側壁上部1b、1bと囲い壁部材3、3の前端面を
夫々両側上半パイプ列62、62と摺接パイプ体6aの後端面
に夫々当接させ、同様に、下部地下構造物部材2の床壁
部2a、側壁下部2b、2b、囲い壁部材4を夫々両側下半パ
イプ列63、63、下側パイプ列64、摺接パイプ体6bの後端
面に夫々当接させる。The upper and lower underground structural members 1 and 2 are combined in a stacked state as described above, and the front end surfaces of the upper and lower underground structural members 1 and 2 are respectively attached to the upper and lower rear end surfaces of a pipe row embedded in the ground. It is in the state of being in contact. That is, the front end face of the top wall 1a of the upper underground structure member 1 is the rear end face of the upper pipe row 61, and the front end faces of the upper side walls 1b, 1b and the surrounding wall members 3, 3 are both upper half pipe rows 62, 62 and the rear end face of the sliding pipe body 6a, respectively. Similarly, the floor wall 2a, the lower side walls 2b, 2b, and the surrounding wall member 4 of the lower underground structural member 2 are respectively connected to the lower half pipe row 63 on both sides. 63, the lower pipe row 64, and the rear end face of the sliding pipe body 6b are respectively brought into contact with each other.
【0020】この状態にして立坑Bに設置した反力支持
部材9と上下地下構造物部材1、2の後端面間に介装し
ている複数本のジャッキ10、11(図1に示す)を伸長さ
せることにより、該上下地下構造物部材1、2を介して
一方の立坑C側に押し出されるパイプ体6列の跡に後続
しながらこれらの上下地下構造物1、2を地中に圧入し
ていく。この際、パイプ体6に設けているフリクション
カット部材7の前端を最前端のパイプ体6から切り離し
ておくと共に後端を立坑Bの適所に固定しておき、該フ
リクションカット部材7を地中に残置させて地盤の移動
を防止させると共に該フリクションカット部材7をガイ
ドとしてパイプ体6が円滑に押し出される。In this state, a plurality of jacks 10, 11 (shown in FIG. 1) interposed between the reaction force supporting member 9 and the rear end surfaces of the upper and lower underground structural members 1, 2 installed in the shaft B are installed. By extending, these upper and lower underground structures 1 and 2 are pressed into the ground while following the trace of six rows of pipes pushed out to one shaft C side via the upper and lower underground structure members 1 and 2. To go. At this time, the front end of the friction cutting member 7 provided on the pipe body 6 is cut off from the foremost end of the pipe body 6 and the rear end is fixed to an appropriate position of the shaft B, and the friction cutting member 7 is placed underground. The pipe body 6 is pushed out smoothly by using the friction cut member 7 as a guide while leaving the ground to prevent the ground from moving.
【0021】また、ジャッキ10、11による上下地下構造
物部材1、2の推進は同時に行うのではなく、まず、一
方の地下構造物部材1を複数本のジャッキ10によって所
望長さだけ押し進めたのち、他方の地下構造物部材2を
複数本のジャッキ11によって同じく所望長さだけ押し進
め、これを繰り返して地中に埋入させていくものであ
る。The propulsion of the upper and lower underground structure members 1 and 2 by the jacks 10 and 11 is not performed simultaneously. First, one of the underground structure members 1 is pushed forward by a plurality of jacks 10 by a desired length. The other underground structural member 2 is similarly pushed forward by a plurality of jacks 11 by a desired length, and is repeatedly buried in the ground.
【0022】従って、上部地下構造物部材1の推進時に
は、停止している下部地下構造物部材2の囲い壁部材4
の上壁板部4aに該上部地下構造物部材1の囲い壁部材3
の下壁板部3aが摺動し、上側パイプ列61と両側上半パイ
プ列62、62及び摺接パイプ体6aとがその推進長に応じて
他方の立坑側に押し出されるものであり、下部地下構造
物部材2の推進時には該下部地下構造物部材2が停止中
の上部地下構造物部材1の囲い壁部材3の下面に沿って
前進して両側下半パイプ列63、63、下側パイプ列64、摺
接パイプ体6bがその推進長に応じて他方の立坑側に押し
出されるものである。押し出されたパイプ体は撤去され
る。なお、上下地下構造物部材1、2によって形成され
る地下構造物の全長が長い場合には、地下構造物を長さ
方向に分割してなる上下地下構造物部材1、2を順次後
続して埋設すればよい。Therefore, when the upper underground structure member 1 is propelled, the surrounding wall member 4 of the stopped lower underground structure member 2
Of the upper underground structure member 1 on the upper wall plate portion 4a
The lower wall plate portion 3a slides, and the upper pipe row 61, both upper half pipe rows 62, 62 and the sliding pipe body 6a are pushed out to the other shaft according to the propulsion length thereof, and When the underground structure member 2 is propelled, the lower underground structure member 2 advances along the lower surface of the surrounding wall member 3 of the stopped upper underground structure member 1 to move the lower half pipe rows 63, 63 on both sides. The row 64 and the sliding pipe body 6b are pushed out to the other shaft according to the propulsion length. The extruded pipe body is removed. When the total length of the underground structure formed by the upper and lower underground structure members 1 and 2 is long, the upper and lower underground structure members 1 and 2 formed by dividing the underground structure in the length direction are successively arranged. It may be buried.
【0023】こうして他方の立坑側Cに全てのパイプ体
6を押し出して上下地下構造物1、2との置換が完了す
ると、該上下地下構造物部材1、2の囲い壁部材3、4
内に作業員が入って図7、図8に示すようにその対向壁
板部3a、4aを切除することによりこれらの囲い壁部材
3、4内を連通させ、囲い壁部材3、4の両側壁間を鋼
板12によって接続すると共に側壁上下部1b、2bの内面下
端部間に内側型枠13を取付け、さらに、これらの側壁上
下部1b、2bの対向端面から突出している鉄筋8、8に図
9に示すように添筋14等の配筋を施したのち、囲い壁部
材3、4内にコンクリート5を打設、充填して上下地下
構造物部材1、2の側壁上下部1b、2bを一体化させるも
のである。When all the pipes 6 are pushed out to the other shaft side C in this way and the replacement with the upper and lower underground structures 1 and 2 is completed, the surrounding wall members 3 and 4 of the upper and lower underground structure members 1 and 2 are completed.
7 and 8, the opposing wall plate portions 3a and 4a are cut off to allow communication between the surrounding wall members 3 and 4 so that both sides of the surrounding wall members 3 and 4 are connected to each other. The walls are connected by a steel plate 12 and the inner formwork 13 is attached between the lower ends of the inner surfaces of the upper and lower side walls 1b and 2b. Further, the reinforcing bars 8 and 8 project from the facing end surfaces of the upper and lower side walls 1b and 2b. As shown in FIG. 9, after arranging reinforcing bars 14 and the like, concrete 5 is poured into and enclosed in the surrounding wall members 3, 4, and the upper and lower side walls 1b, 2b of the upper and lower underground structural members 1, 2 are filled. Are integrated.
【0024】上記のように、上下地下構造物部材1、2
を一体化させて地下構造物を構築したのち、該地下構造
物内の土砂を掘削、排除し、通路を形成するものであ
る。なお、以上の実施例においては、地下構造物を上下
に分割した地下構造物部材1、2によって構成している
が、左右に分割しておいてもよく、また、二分割に限ら
ず複数分割してその分割端面に囲い壁部材を互いに摺接
させた状態に取付け、各分割部分を上記同様にして順次
単独的に推進させるようにしてもよい。さらに、ジャッ
キによる押し進めに限らず、適宜な牽引手段によって地
下構造物部材1、2を牽引することにより推進させるよ
うにしてもよい。As described above, the upper and lower underground structural members 1, 2
And then constructing an underground structure, excavating and removing earth and sand in the underground structure to form a passage. In the above embodiment, the underground structure is constituted by the underground structure members 1 and 2 which are vertically divided. However, the underground structure may be divided right and left. Then, the surrounding wall members may be attached to the divided end surfaces in a state of sliding contact with each other, and each divided portion may be sequentially and independently propelled in the same manner as described above. Further, the underground structure members 1 and 2 may be propelled by towing the underground structure members 1 and 2 by appropriate towing means, without being limited to pushing by the jack.
【0025】図12及び図13は本発明の別な実施例を示す
もので、上記実施例においては、上下地下構造物部材
1、2の囲い壁部材3、4として対向壁板部3a、4aを有
する閉鎖形状のものを採用しているが、この実施例にお
いては、該囲い壁部材3A、4Aとして対向壁板部を設ける
ことなく端部を夫々上下地下構造物部材1、2の側壁上
下部1b、2bの端部に固着された並設側壁板3b、3b及び4
b、4bによって構成しているものである。そして、一方
の側壁板3bの端部を他方の側壁板4bの上部に形成してい
る水平段部4dに係合状態に摺接させて互いにずれること
なく推進可能としている。FIGS. 12 and 13 show another embodiment of the present invention. In the above embodiment, the facing wall plate portions 3a and 4a are used as the surrounding wall members 3 and 4 of the upper and lower underground structural members 1 and 2, respectively. However, in this embodiment, the end portions of the upper and lower underground structural members 1 and 2 are not provided as the surrounding wall members 3A and 4A. Side wall plates 3b, 3b and 4 fixed to the ends of the portions 1b and 2b
b, 4b. The end of one side wall plate 3b is slidably engaged with a horizontal step portion 4d formed on the upper side of the other side wall plate 4b so that the propulsion can be performed without displacement.
【0026】このように構成した囲い壁部材3A、4Aによ
れば、互いに連通しているので、上下地下構造物1、2
の埋設後に上記のような対向壁板部3a、4aの切除作業を
不要にし得るばかりでなく、作業空間を広くすることが
できる。従って、これらの囲い壁部材3A、4Aと置換され
る摺接パイプ体6a、6bとして図12に示すように、パイプ
体6と同一断面形状のものを用いることができる。According to the surrounding wall members 3A and 4A configured as described above, since they communicate with each other, the upper and lower underground structures 1, 2
After the embedding, the work for cutting off the opposing wall plate portions 3a and 4a as described above can be unnecessary, and the working space can be widened. Accordingly, as shown in FIG. 12, the pipe body 6 having the same cross-sectional shape can be used as the sliding pipe bodies 6a and 6b to be replaced with the surrounding wall members 3A and 4A.
【0027】[0027]
【発明の効果】以上のように本発明によれば、地下構造
物を少なくとも上下又は左右に分割された複数の地下構
造物部材から形成しているので、各地下構造物部材の製
作や取扱いが容易となるばかりでなく、地中の計画地下
構造物の断面位置にパイプ体を並設状態で埋設したの
ち、この並設パイプ体の後端面に上記分割地下構造物部
材を組み合わせてなる地下構造物の前端面を当接させた
状態で、各分割地下構造物部材を単独的に押し進め又は
牽引等によって推進させることができると共に推進され
る地下構造物部材の前端面側のパイプ群のみを同時に前
方に移動させながら該パイプ群と地下構造物部材との置
換が円滑且つ能率よくに行えるものである。As described above, according to the present invention, since the underground structure is formed of at least a plurality of underground structure members divided vertically or horizontally, the production and handling of each underground structure member is possible. Not only becomes easier, but the underground structure is constructed by burying a pipe body in a cross-sectional position of an underground planned underground structure in a side-by-side state, and then combining the divided underground structure member with the rear end face of the side-by-side pipe body In a state where the front end face of the object is in contact with each other, each of the divided underground structure members can be independently pushed or propelled by traction or the like, and only the pipe group on the front end face side of the underground structure member to be propelled at the same time. The pipe group and the underground structural member can be smoothly and efficiently replaced while being moved forward.
【0028】さらに、分割地下構造物部材を単独的に推
進させるものであるから、地下構造物全体を推進させる
従来方式に比べて小さな規模の推進手段によって施工す
ることができ、その際、地下構造物部材の分割面に互い
に摺接する中空の囲い壁部材を固着しているので、一方
の囲い壁部材をガイドとして他方の囲い部材を摺動させ
ながら円滑且つ正確に各地下構造物部材を推進させるこ
とができるものであり、従って、長尺な或いは大断面の
地下構造物であっても、容易に築造し得るものである。Further, since the divided underground structure members are independently propelled, it can be constructed by a propulsion means of a smaller scale than the conventional method of propelling the entire underground structure. Since the hollow enclosing wall members that are in sliding contact with each other are fixed to the divided surfaces of the object members, each of the underground structural members is smoothly and accurately propelled while sliding the other enclosing member using one enclosing wall member as a guide. Therefore, even an underground structure having a long or large cross section can be easily constructed.
【0029】又、地中に各分割地下構造物部材を推進埋
設したのち、互いに連通させた囲い壁部材の内部間にコ
ンクートを打設することによって分割地下構造物部材を
一体化させることができ、その際、囲い壁部材の中空内
部を作業空間に使用して配鉄や型枠組立作業が容易に行
えるものである。Further, after each divided underground structure member is buried underground, concrete is cast between the insides of the surrounding wall members which are communicated with each other, whereby the divided underground structure members can be integrated. At this time, the hollow interior of the enclosing wall member is used as a working space, so that iron distribution and formwork assembling work can be easily performed.
【図1】地下構造物を築造中の簡略縦断側面図、FIG. 1 is a simplified longitudinal side view of an underground structure being constructed.
【図2】築造された地下構造物の縦断正面図、FIG. 2 is a longitudinal sectional front view of the constructed underground structure.
【図3】地中に埋設したパイプ体の簡略縦断正面図、FIG. 3 is a simplified vertical sectional front view of a pipe body buried underground,
【図4】その摺接パイプ体部分の拡大簡略図、FIG. 4 is an enlarged simplified view of a sliding pipe body portion,
【図5】上下地下構造物部材の簡略縦断正面図、FIG. 5 is a simplified longitudinal front view of upper and lower underground structural members,
【図6】その囲い壁部材部分の拡大断面図、FIG. 6 is an enlarged sectional view of the surrounding wall member.
【図7】囲い壁部材間を連通させた状態の簡略断面図、FIG. 7 is a simplified cross-sectional view showing a state where the surrounding wall members are communicated with each other;
【図8】その拡大断面図、FIG. 8 is an enlarged sectional view thereof;
【図9】囲い壁部材間を一体化した状態の断面図、FIG. 9 is a cross-sectional view showing a state where the surrounding wall members are integrated.
【図10】パイプ体の縦断正面図、FIG. 10 is a longitudinal sectional front view of a pipe body;
【図11】その縦断側面図、FIG. 11 is a longitudinal side view thereof,
【図12】本発明の別な実施例を示す一部の簡略縦断正
面図、FIG. 12 is a partial simplified longitudinal front view showing another embodiment of the present invention;
【図13】その部分に上下地下構造物部材の接合部分を
設けた状態の縦断正面図、FIG. 13 is a longitudinal sectional front view showing a state in which a joint portion between upper and lower underground structural members is provided in that portion.
【図14】従来例を示す簡略縦断側面図、FIG. 14 is a simplified longitudinal side view showing a conventional example,
【図15】そのパイプ列部分の簡略縦断正面図。FIG. 15 is a simplified vertical sectional front view of the pipe row portion.
1 上部地下構造物部材 2 下部地下構造物部材 3、4 囲い壁部材 5 コンクリート 6 パイプ体 6a、6b 摺接パイプ体 DESCRIPTION OF SYMBOLS 1 Upper underground structural member 2 Lower underground structural member 3, 4 Enclosure wall member 5 Concrete 6 Pipe 6a, 6b Sliding pipe
フロントページの続き (72)発明者 増岡 潔 大阪市阿倍野区松崎町2丁目2番2号 株式会社奥村組内 (56)参考文献 特開 昭52−75017(JP,A) 実開 平2−47287(JP,U) 特公 昭34−5794(JP,B1) (58)調査した分野(Int.Cl.6,DB名) E21D 9/04Continuation of front page (72) Inventor Kiyoshi Masuoka 2-2-2 Matsuzaki-cho, Abeno-ku, Osaka-shi Okumura Gumi Co., Ltd. (56) References JP-A-52-75017 (JP, A) (JP, U) JP 34-5794 (JP, B1) (58) Fields investigated (Int. Cl. 6 , DB name) E21D 9/04
Claims (2)
造物部材の組み合わせ接合によって形成された地下構造
物であって、構造物部材同士の接合端面には互いに対向
して中空部を形成する囲い壁部材が全長に亘って一体に
取付けられてあり、これらの囲い壁部材の連通中空部間
にコンクリートを打設して構造物部材同士を一体化して
なることを特徴とする地下構造物。1. An underground structure formed by combining and joining at least vertically or horizontally divided structural members, and an enclosing wall that forms a hollow portion facing each other at joint end surfaces of the structural members. An underground structure in which members are integrally attached over the entire length, and concrete members are cast between the communicating hollow portions of the surrounding wall members to integrate the structural members.
プ体を並設状態で埋設したのち、少なくとも上下又は左
右に地下構造物を分割した形状を有し且つその分割端面
に囲い壁部材を全長に亘って一体に取付けてなる分割構
造物部材の前端面を上記並設パイプ体の後端面に当接
し、これらの構造物部材を並設パイプ体と置換すること
により地中に埋設し、しかるのち、これら囲い壁部材の
連通した中空部にコンクートを打設して構造物部材同士
を一体化させることを特徴とする地下構造物の築造方
法。2. A wall member having a shape in which a pipe body is buried in a cross-sectional position of an underground planned underground structure in a state of being juxtaposed, and at least vertically or horizontally divided into an underground structure, and the divided end surface thereof Are buried in the ground by abutting the front end face of the divided structural member integrally attached over the entire length to the rear end face of the side-by-side pipe body, and replacing these structural members with the side-by-side pipe body. Thereafter, a method of constructing an underground structure is characterized in that concrete is cast in a hollow portion communicating with the surrounding wall members to integrate the structural members.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5084109A JP2835416B2 (en) | 1993-03-17 | 1993-03-17 | Underground structure and its construction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5084109A JP2835416B2 (en) | 1993-03-17 | 1993-03-17 | Underground structure and its construction method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06272470A JPH06272470A (en) | 1994-09-27 |
JP2835416B2 true JP2835416B2 (en) | 1998-12-14 |
Family
ID=13821363
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JP5084109A Expired - Lifetime JP2835416B2 (en) | 1993-03-17 | 1993-03-17 | Underground structure and its construction method |
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JP (1) | JP2835416B2 (en) |
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- 1993-03-17 JP JP5084109A patent/JP2835416B2/en not_active Expired - Lifetime
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