JP3692043B2 - Construction method of three-dimensional detour - Google Patents

Construction method of three-dimensional detour Download PDF

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JP3692043B2
JP3692043B2 JP2001030605A JP2001030605A JP3692043B2 JP 3692043 B2 JP3692043 B2 JP 3692043B2 JP 2001030605 A JP2001030605 A JP 2001030605A JP 2001030605 A JP2001030605 A JP 2001030605A JP 3692043 B2 JP3692043 B2 JP 3692043B2
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bridge
traffic
road
detour
dimensional
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JP2002155501A (en
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信明 小林
肇 山下
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Taisei Corp
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Taisei Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、立体式迂回路の構築方法に関するものである。
【0002】
【従来の技術】
交通路等を開削して地下にトンネル等の構造物を構築する施工方法では、作業区間の交通路を撤去して掘削を行い、地下に構造物を構築した後に作業区間の交通路を復元するため、作業区間の交通路の通行が規制されていた。
【0003】
このように、通行規制された交通路では、以下の方法によって既存の車両の通行を確保していた。
(1)作業区間の交通路の周辺に構築した同一平面上の迂回路を経由して既存の車両を通行させる、迂回路による通行方法。
(2)作業区間の交通路を分割して規制し、部分的に車線の通行を停止して施工を行い、同時に他の車線のみを用いて交互に既存の車両を通行させる、分割規制による通行方法。
【0004】
【発明が解決しようとする課題】
しかしながら、従来の作業区間における交通路の通行方法では、以下の問題が存在していた。
(1)前記迂回路による通行方法では、同一平面上の迂回路の構築用地を確保しなければならず、また、同一平面上の迂回路の構築に係る施工期間を長く必要とするため、施工費が高くなっていた。
【0005】
(2)前記分割規制による通行方法では、作業区間の交通路の通行量が制限されるため、交通渋滞が発生し、周辺地域社会の環境及び経済活動に対する影響が大きくなり、また、一括して施工が行えないため、施工期間が長く必要となり、施工費が高くなっていた。
【0006】
したがって、作業区間の交通路の直上に立体式迂回路を構築して通行を確保することが望まれるが、立体式迂回路の構築は交通路の通行を停止する必要があり、周辺地域社会の環境及び経済活動に対する影響が大きくなるため、効果的な施工方法の開発が望まれていた。
【0007】
そこで本発明は、既存の交通路上に作業領域を確保する場合において、迂回路の構築用地を確保する必要がなく、既存の交通に対する影響を低減して立体式迂回路を容易に構築することで、周辺地域社会の環境および経済活動に対する影響を低減するとともに、施工期間の短縮及び施工費の削減が実現可能な立体式迂回路の構築方法を提供することを課題とする。
【0008】
【課題を解決するための手段】
本発明は、前記課題を解決すべく構成されるものであり、請求項1に記載の発明は、交通路における立体式迂回路の構築方法であって、(1)交通路に立設した作業台から分割された橋梁を可動式架台に受け替え、交通路で可動式架台を移動させることにより、作業台から分割された橋梁を順次に送り出し、可動式架台によって搬送された分割された橋梁を、交通路に沿って所定の間隔をあけて打設した複数の支柱間に架設することで、前記交通路の上方に橋梁を構築する、橋梁送り出し工程と、(2)橋梁の所定部を降下させて、橋梁と交通路を接続することで、橋梁によって交通路に立体式迂回路を構築する、橋梁降下工程とを含むことを特徴とする。
【0009】
ここで、交通路とは、道路、鉄道線路等の各種交通機関の通行路をいう。
【0010】
請求項1に記載の発明によれば、橋梁降下工程では、橋梁の所定部を降下させることで、交通路に立体式迂回路を容易に構築できるため、施工期間を短縮することができる
【0012】
また、交通路の上方空間を利用して、分割された橋梁を作業台から支柱間に順次に送り出すことで、橋梁を交通路の上方に構築するため、既存の交通路の通行に影響を与えることなく施工を行うことができる。
さらに、橋梁を交通路の上方空間である作業台で分割製作することができるため、搬入が容易になるとともに、施工用地を縮小することができる。
【0014】
また、可動式架台によって分割された橋梁の送り出しを、交通路の上方空間を利用して行うため、既存の交通路の通行に影響を与えることなく、施工を行うことができる。
【0015】
また、請求項に記載の発明は、請求項1に記載の立体式迂回路の構築方法であって、橋梁降下工程において、橋梁の所定部を支柱の降下装置によって降下させることを特徴とする。
【0016
これによれば、橋梁の降下を目的とした装置を交通路に設置する必要がないことから、橋梁の降下作業が簡易化されるため、夜間等の交通路の停止時間帯に施工を完了することができる。
【0017】
また、請求項に記載の発明は、請求項1または請求項に記載の立体式迂回路の構築方法であって、前記橋梁が仮設橋であることを特徴とする。
【0018】
ここで、請求項に記載の発明を必要とする交通路は、地下に構造物を構築するための開削工事、あるいは、交通路の破損、補修等により、既存の交通路上に作業領域を確保する必要があり、一部区間を作業区間として通行を規制する交通路である。
また、仮設橋とは、既存の交通路上の作業期間のみに使用されるものであり、作業終了後は撤去されることになる。
【0019】
請求項に記載の発明によれば、仮設の立体式迂回路を既存の交通路の通行に影響を与えずに容易に構築することができる。
【0020
したがって、本発明の立体式迂回路の構築方法では、交通路の上方に既存の交通に対する影響を低減して立体式迂回路を容易に構築し、立体式迂回路と交通路を容易に接続することができるため、周辺地域社会の環境及び経済活動に対する影響が低減されるとともに、施工期間の短縮及び施工費の削減を図ることができる。
【0021
【発明の実施の形態】
以下、添付図面に基づいて本発明の実施の形態を詳細に説明する。なお、同一要素には同一符号を用い、重複する説明は省略するものとする。
【0022
[第1実施形態]
本発明の第1実施形態に係る立体式迂回路の構築方法は、自動車の道路、列車の線路、あるいは歩道等の交通路に適用可能であるが、この実施の形態では、自動車の道路を開削して地下にトンネル等の構造物を構築する施工方法を対象とし、地下に構造物を構築するために規制された作業区間における車両の通行を、仮設の立体式迂回路に盛り替える場合を例として説明する。
【0023
図1は仮設橋送り出し工程を示した図で、作業台及び支柱の側面図である。図2は仮設橋送り出し工程を示した図で、(a)は図1のA−A断面図、(b)は図1のB−B断面図である。図3は仮設橋送り出し工程を示した図で、仮設橋を送り出した際を示す側面図である。図4は仮設橋送り出し工程を示した図で、図3のC−C断面図である。図5は仮設橋降下工程を示した図で、(a)は仮設橋の側面図、(b)は仮設橋の降下側面図である。図6は仮設橋降下工程を示した図で、仮設橋降下後の地下トンネル等の工事状況図(図5(b)のD−D断面図)である。
【0024
まず、本発明の第1実施形態に係る立体式迂回路の構築方法における各装置を説明する。
作業台6は後記する仮設橋2を分割製作する作業場としての役割を果たすものであり、図1,図2(a)に示すように、道路3の両側の路肩3’,3’に立設している脚部7,7と、その脚部7,7の上部に架設されている板状のステージ8とから構成されている、門型形状の台である。この作業台6のステージ8は安定性を考慮して複数の脚部7によってステージ8を支持するのが好ましい。
【0025
そして、支柱4及び支持梁5は仮設橋2を支持する役割を果たすものであり、、図1,図2(b)に示すように、支柱4は道路3の両側の路肩3’,3’に左右対称に打設されている棒状の柱であり、一箇所において数本で対となる各支柱4,4の上部に支持梁5が道路3を横断する方向に架設されていて、この支持梁5で仮設橋2を支持する。さらに、支持梁5は支柱4に設置したジャッキ構造等の降下装置(図示せず)によって垂直方向に移動することができる。
【0026】
また、可動式架台9は後記する分割された仮設橋2’を作業台6から支柱4に搬送する役割を果たすものであり、図3,図4に示すように、道路3の両側の路肩3’,3’に立設している脚部11,11の上部に、支持梁10が道路3を横断する方向に架設されていて、この支持梁10で設橋2を支持する。さらに、脚部11の下部に車輪12が設置されていて、後記する2本のレール13上を可動式架台9が移動できる。
そして、2本のレール13は、道路3の路肩3’において、道路3の長手方向に沿って仮設架台9の脚部11,11と同じ幅をあけて敷設されている。
ここで、作業台6、支柱4及び可動式架台9は、仮設橋2を支持したときの荷重に耐えられるものであれば、その材料及び構造は限定されるものではないが、仮設橋2を支持したときの安定性を十分考慮した構造とする必要がある。
【0027
そして、仮設橋2は立体式迂回路1を構成する役割を果たすものであり、図3,図4に示すように、上面に路面15を有する橋であって、長手方向に複数の分割された仮設橋2’から構成されている。この分割された仮設橋2’は、車両20の通行を安全に行えるものであれば、その材質及び構造は限定されるものではないが、作業台6のステージ8上で製作されることを考慮すると、作業工程を簡略化して短期間に製作することが望まれるため、例えば、鋼材などによるトラス構造の骨組みに、鋼板又は鉄筋コンクリート製などの板を路面15として設置する、組立式の構造が好ましい。
【0028
次に、本発明の第1実施形態に係る立体式迂回路の構築方法について説明する。
(1)前記仮設橋送り出し工程では、図1,図2(a)に示すように、作業台6を道路3の所定の位置に立設する。これにより、作業台6のステージ8は道路3の直上に配置される。
次に、図1,図2(b)に示すように、各支柱4を道路3の長手方向に所定の間隔をあけて道路3に打設する。これにより、各支柱4の上部に架設した支持梁5は道路3の直上に配置される。
次に、図3,図4に示すように、道路3の路肩3’に仮設架台9の脚部11,11と同じ幅をあけて2本のレール13,13を敷設する。
そして、レール13,13上に可動式架台9を立設する。これにより、可動式架台9は道路3を移動することができるため、可動式架台9の支持梁10は道路3の直上を移動することができる。
【0029
次に、作業台6のステージ8を作業場として、分割された仮設橋2’を道路3の直上で製作する。この分割された仮設橋2’は分割した部材で構成されるため、施工現場に容易に搬入し、仮設橋2の製作を道路3の上方空間で行うことにより、仮設橋2の搬入におけるトラック等の搬送機械及びクレーン等の揚重機が小型化できる。
次に、図3,図4に示すように、分割された仮設橋2’を可動式架台9の支持梁10に受け替える。そして、道路3の直上で可動式架台9を所定の位置まで移動させて、長手方向に隣接する支柱4間に架設することにより、支柱4の支持梁5に受け替える。
【0030
次に、図5(a)に示すように、仮設橋送り出し工程を繰り返すことにより、道路3の直上に分割した仮設橋2’によって構成された仮設橋2を構築する。
また、仮設橋降下工程の後において、作業台6、可動式架台9及びレール13は以降の工程で使用しないため、作業に影響を与えるのであれば撤去するのが好ましい。
【0031】
以上、設橋送り出し工程では、道路3の上方空間を利用して、仮設橋2を道路3の上方に構築するため、既存の車両30の通行に影響を与えずに施工を行うことができる。
【0032
そして、(2)立体式迂回路降下工程では、図5(b)に示すように、分割された仮設橋2’を支持している各支柱4の支持梁5の位置を、各支柱4ごとに定められた所定位置まで降下させることで仮設橋2に斜路部Lを設け、仮設橋2の両端部に摺付け部14を設置して道路3と接続することで、道路3に立体式迂回路1を容易に短時間で構築できる。
このとき、支持梁5の降下は支柱4に設置された降下装置(図示せず)によって行う。この降下装置の構造は限定されるものではないが、ジャッキ構造等の簡易な構造のものが好ましい。例えば、先端部が支持梁5を支持しているロッドを縮退させることにより、その位置を降下させる、油圧ジャッキ式装置等を用いることができる。
【0033
最後に、図6に示すように、道路3の直上にある立体式迂回路1の路面15を使用して既存の車両30の通行を確保しながら、立体式迂回路1の直下の道路3を掘削して地下に構造物を構築し、道路3を復元した後に、立体式迂回路1を撤去する。
【0034
以上、前記仮設橋降下工程では、仮設橋2の降下を目的とした装置を道路3に設置する必要がなく、仮設橋2の降下作業が簡易化され、夜間等の道路3の停止時間帯に施工を完了することができる。
【0035
[第2実施形態]
前記第1実施形態では、仮設の立体式迂回路を構築する場合について説明したが、本発明の立体式迂回路の構築方法は、下部における作業が終了した後に、立体式迂回路の撤去を行わずに、そのまま本設橋として使用する立体式迂回路(以下、「本設の立体式迂回路」という)を構築する場合にも適用することができる。
この第2実施形態では、橋梁を使用して本設の立体式迂回路を構築する場合を例として説明する。
【0036
図7は本設の立体式迂回路の橋梁降下工程を示した図で、(a)は橋梁の側面図、(b)は橋梁の降下側面図である。図8は本設の立体式迂回路を示した図7(b)のE−E断面図である。図9は橋梁送り出し工程を示した図で、(a)は橋梁を送り出した際を示す正面断面図、(b)は補強用桁を送り出した際を示す正面断面図である。
【0037
この本設の立体式迂回路1’の構築方法は、前記仮設の立体式迂回路1の構築方法と略同様の構成となっており、橋梁20と仮設橋2の構造のみが異なっている。すなわち、橋梁20は、図7及び図8に示すように、周辺地域に対する騒音を低減するため、橋梁20を構成する中空の橋桁21の中空部22に吸音材23を設けるとともに、本設橋として長期間の使用に対する耐久性を備える必要があるため、橋梁20の下面に補強用桁24を備えた構造である。そのため、可動式架台9による送り出し工程において、図9(a)に示すように、まず、分割した橋梁20’を可動式架台9によって送り出し、支柱4の支持梁5に仮受けする。次に、図9(b)に示すように、補強用桁24を可動式架台9によって送り出し、分割した橋梁20’と一体化した後に、支柱4の支持梁5に受け替えることにより、道路3の直上に橋梁20を構築する。
これにより、騒音を低減するとともに、耐久性に優れた本設の立体式迂回路1’を、道路3の通行に影響を与えずに容易に構築することができる。
【0038
以上、本発明を前記実施形態によって説明したが、本発明は前記実施形態に限定されるものではない。前記本発明の立体式迂回路の構築方法と実質的に同一な構成を有し、同様な作用効果を奏するものは、いかなるものであっても本発明の技術的範囲に包含される。
【0039
【発明の効果】
したがって、本発明の立体式迂回路の構築方法では、交通路の上方に既存の交通に対する影響を低減して立体式迂回路を容易に構築し、立体式迂回路と交通路を容易に接続することができることから、周辺地域社会の環境及び経済活動に対する影響を低減するとともに、施工期間の短縮及び施工費の削減を図ることができる。
【図面の簡単な説明】
【図1】本発明の第1実施形態に係る仮設橋送り出し工程を示した図で、作業台及び支柱の側面図である。
【図2】本発明の第1実施形態に係る仮設橋送り出し工程を示した図で、(a)は図1のA−A断面図、(b)は図1のB−B断面図である。
【図3】本発明の第1実施形態に係る仮設橋送り出し工程を示した図で、仮設橋を送り出した際を示す側面図である。
【図4】本発明の第1実施形態に係る仮設橋送り出し工程を示した図で、図3のC−C断面図である。
【図5】本発明の第1実施形態に係る仮設橋降下工程を示した図で、(a)は仮設橋の側面図、(b)は架設橋の降下側面図である。
【図6】本発明の第1実施形態に係る仮設橋降下工程を示した図で、仮設橋降下後の地下トンネル等の工事状況図(図5(b)のD−D断面図)である。
【図7】本発明の第2実施形態に係る本設の立体式迂回路の橋梁降下工程を示した図で、(a)は橋梁の側面図、(b)は橋梁の降下側面図である。
【図8】本発明の第2実施形態に係る本設の立体式迂回路を示した図7(b)のE−E断面図である。
【図9】本発明の第2実施形態に係る橋梁送り出し工程を示した図で、(a)は橋梁を送り出した際を示す正面断面図、(b)は補強用桁を送り出した際を示す正面断面図である。
【符号の説明】
1.......仮設の立体式迂回路
1’......本設の立体式迂回路
2.......仮設橋
2’......分割された仮設橋
3.......既存の道路
3’......既存の道路の路肩
4.......支柱
5.......支柱の支持梁
6.......作業台
7.......作業台の脚部
8.......作業台のステージ
9.......可動式架台
10.......可動式架台の支持梁
11.......可動式架台の脚部
12.......可動式架台の車輪
13.......レール
14.......摺付け部
15.......立体式迂回路の道路
20.......橋梁
20’......分割された橋梁
21.......橋桁
22.......橋桁の中空部
23.......吸音材
24.......補強用桁
30.......車両
L.......立体式迂回路の斜路部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for constructing a three-dimensional detour.
[0002]
[Prior art]
In construction methods that excavate traffic roads and build structures such as tunnels underground, excavate and excavate the traffic roads in the work section, and then restore the traffic roads in the work section after building the structure underground For this reason, traffic on the work section was restricted.
[0003]
In this way, on traffic routes that are restricted in traffic, the passage of existing vehicles has been secured by the following method.
(1) A method of passing by a detour that allows an existing vehicle to pass through a detour on the same plane constructed around the traffic route of the work section.
(2) Traffic by division regulation that divides and regulates the traffic route of the work section, partially stops lane traffic and performs construction at the same time, and allows existing vehicles to pass alternately using only other lanes. Method.
[0004]
[Problems to be solved by the invention]
However, the following problems existed in the conventional method of passing traffic in the work section.
(1) In the method of passing by the detour, it is necessary to secure a site for constructing a detour on the same plane, and the construction period for constructing the detour on the same plane is long. The cost was high.
[0005]
(2) In the traffic method based on the above-mentioned division regulation, the traffic volume of the work section is limited, resulting in traffic congestion, increasing the impact on the environment and economic activities of the surrounding community. Since construction was not possible, the construction period was long and construction costs were high.
[0006]
Therefore, it is desirable to secure a traffic by constructing a three-dimensional detour directly above the traffic route in the work section, but the construction of the three-dimensional detour needs to stop the traffic route, Development of an effective construction method has been desired because of the large impact on the environment and economic activities.
[0007]
Therefore, the present invention eliminates the need to secure a detour construction site when securing a work area on an existing traffic route, and reduces the influence on existing traffic and easily constructs a three-dimensional detour. It is an object of the present invention to provide a method for constructing a three-dimensional detour that can reduce the influence on the environment and economic activities of surrounding communities, and can shorten the construction period and the construction cost.
[0008]
[Means for Solving the Problems]
The present invention is configured to solve the above-mentioned problems, and the invention according to claim 1 is a method for constructing a three-dimensional detour on a traffic road , and (1) work standing on the traffic road The bridge divided from the platform is replaced with a movable platform, and the movable platform is moved on the traffic route, so that the divided bridges are sequentially sent out from the work platform, and the divided bridge conveyed by the movable platform is removed. A bridge sending process for constructing a bridge above the traffic road by installing it between a plurality of struts placed at predetermined intervals along the traffic road, and (2) descending a predetermined portion of the bridge And a bridge descent process for constructing a three-dimensional detour in the traffic road by connecting the bridge and the traffic road.
[0009]
Here, the traffic route means a traffic route of various transportation such as a road and a railroad track.
[0010]
According to the invention described in claim 1, in bridges reducing step, by lowering the predetermined portion of the bridge, because it can easily construct a three-dimensional expression detour traffic channel, it is possible to shorten the construction period.
[0012]
In addition , by using the space above the traffic road, the divided bridges are sequentially sent from the work bench between the columns, so that the bridge is constructed above the traffic road, affecting the traffic on the existing traffic road. Construction can be performed without any problems.
Furthermore , since the bridge can be divided and manufactured on a work table which is an upper space of the traffic road, it is easy to carry in and the construction site can be reduced.
[0014]
In addition , since the bridge divided by the movable mount is sent out using the space above the traffic road, the construction can be performed without affecting the traffic on the existing traffic road.
[0015]
The invention described in claim 2 is the method of constructing the three-dimensional detour according to claim 1, characterized in that, in the bridge lowering step, a predetermined part of the bridge is lowered by a column lowering device. .
[00 16 ]
According to this, since it is not necessary to install a device for descent of the bridge in the traffic road, the descent work of the bridge is simplified, so the construction is completed in the traffic road stoppage time such as at night. be able to.
[0017]
The invention described in claim 3 is the method for constructing a three-dimensional detour according to claim 1 or 2 , wherein the bridge is a temporary bridge.
[0018]
Here, the traffic road that requires the invention according to claim 3 secures a work area on the existing traffic road by excavation work for constructing the structure underground, or damage or repair of the traffic road. It is a traffic route that regulates traffic with a section as a work section.
In addition, the temporary bridge is used only during the work period on the existing traffic road, and is removed after the work is completed.
[0019]
According to the third aspect of the present invention, it is possible to easily construct a temporary three-dimensional detour without affecting the passage of existing traffic paths.
[00 20 ]
Therefore, in the method for constructing the three-dimensional detour according to the present invention, the three-dimensional detour is easily constructed by reducing the influence on the existing traffic above the traffic route, and the three-dimensional detour and the traffic route are easily connected. Therefore, the influence on the environment and economic activities of the surrounding community can be reduced, and the construction period can be shortened and the construction cost can be reduced.
[00 21 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is used for the same element and the overlapping description shall be abbreviate | omitted.
[00 22 ]
[First embodiment]
The method for constructing a three-dimensional detour according to the first embodiment of the present invention is applicable to traffic roads such as automobile roads, train tracks, or sidewalks. In this embodiment, car roads are excavated. For example, a case where the construction method of building a structure such as a tunnel in the basement is targeted, and the traffic of the vehicle in the work section regulated to build the structure in the basement is replaced with a temporary three-dimensional detour Will be described.
[00 23 ]
FIG. 1 is a side view of a workbench and a column, showing a temporary bridge delivery process. 2A and 2B are diagrams showing a temporary bridge feeding process, where FIG. 2A is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line BB in FIG. FIG. 3 is a side view showing the temporary bridge delivery process, and shows the state when the temporary bridge is delivered. FIG. 4 is a view showing a temporary bridge feeding process, and is a cross-sectional view taken along the line CC of FIG. FIGS. 5A and 5B are diagrams showing a temporary bridge lowering process, where FIG. 5A is a side view of the temporary bridge, and FIG. 5B is a lower side view of the temporary bridge. FIG. 6 is a diagram showing the temporary bridge descent process, and is a diagram showing the construction status of the underground tunnel and the like after the temporary bridge descent (DD sectional view of FIG. 5B).
[00 24 ]
First, each device in the method for constructing a three-dimensional detour according to the first embodiment of the present invention will be described.
The work table 6 serves as a work place for dividing the temporary bridge 2 to be described later, and is erected on the shoulders 3 'and 3' on both sides of the road 3 as shown in FIGS. It is a gate-shaped base composed of leg portions 7 and 7 and a plate-like stage 8 installed on top of the leg portions 7 and 7. The stage 8 of the work table 6 is preferably supported by a plurality of legs 7 in consideration of stability.
[00 25 ]
The column 4 and the support beam 5 play a role of supporting the temporary bridge 2, and the column 4 has shoulders 3 ′ and 3 ′ on both sides of the road 3 as shown in FIGS. 1 and 2 (b). The support beam 5 is installed in the direction which crosses the road 3 on the upper part of each support | pillar 4 and 4 which becomes a pair by several in one place. The temporary bridge 2 is supported by the beam 5. Further, the support beam 5 can be moved in the vertical direction by a descent device (not shown) such as a jack structure installed on the column 4.
[0026]
The movable mount 9 serves to transport a divided temporary bridge 2 ', which will be described later, from the work bench 6 to the support column 4. As shown in FIGS. ', 3' at the top of the leg portions 11 and 11 are erected on the support beams 10 have been laid in the direction transverse to the road 3, supports the temporary設橋2 in the support beam 10. Furthermore, the wheel 12 is installed in the lower part of the leg part 11, and the movable mount frame 9 can move on the two rails 13 mentioned later.
The two rails 13 are laid on the shoulder 3 ′ of the road 3 with the same width as the legs 11 and 11 of the temporary mount 9 along the longitudinal direction of the road 3.
Here, as long as the work platform 6, the support column 4 and the movable mount 9 can withstand the load when the temporary bridge 2 is supported, the material and structure thereof are not limited. It is necessary to have a structure that fully considers the stability when supported.
[00 27 ]
And the temporary bridge 2 plays the role which comprises the three-dimensional detour 1, and as shown in FIG. 3, FIG. 4, it is a bridge which has the road surface 15 on the upper surface, Comprising: It divided | segmented into the longitudinal direction by several It consists of a temporary bridge 2 '. The divided temporary bridge 2 ′ is not limited in material and structure as long as it can safely pass the vehicle 20, but it is considered to be manufactured on the stage 8 of the work table 6. Then, since it is desired that the work process is simplified and manufactured in a short period of time, for example, an assembling type structure in which a plate made of a steel plate or reinforced concrete is installed as a road surface 15 on a framework of a truss structure made of steel or the like is preferable. .
[00 28 ]
Next, a method for constructing a three-dimensional detour according to the first embodiment of the present invention will be described.
(1) In the temporary bridge delivery step, the work table 6 is erected at a predetermined position on the road 3 as shown in FIGS. As a result, the stage 8 of the work table 6 is arranged immediately above the road 3.
Next, as shown in FIG. 1 and FIG. 2B, each support column 4 is driven on the road 3 at a predetermined interval in the longitudinal direction of the road 3. Thereby, the support beam 5 installed on the upper part of each support | pillar 4 is arrange | positioned directly on the road 3. FIG.
Next, as shown in FIGS. 3 and 4, two rails 13 and 13 are laid on the shoulder 3 ′ of the road 3 with the same width as the legs 11 and 11 of the temporary mount 9.
Then, the movable mount 9 is erected on the rails 13 and 13. Thereby, since the movable mount 9 can move on the road 3, the support beam 10 of the movable mount 9 can move on the road 3.
[00 29 ]
Next, using the stage 8 of the work table 6 as a work place, the divided temporary bridge 2 ′ is manufactured immediately above the road 3. Since the divided temporary bridge 2 ′ is composed of divided members, the temporary bridge 2 can be easily carried into the construction site, and the temporary bridge 2 can be manufactured in the space above the road 3. This makes it possible to reduce the size of the transporting machine and crane and other heavy lifting machines.
Next, as shown in FIGS. 3 and 4, the divided temporary bridge 2 ′ is replaced with a support beam 10 of the movable mount 9. Then, the movable base 9 is moved to a predetermined position immediately above the road 3 and is installed between the pillars 4 adjacent in the longitudinal direction, so that the support beam 5 of the pillar 4 is received.
[00 30 ]
Next, as shown in FIG. 5A, the temporary bridge 2 constituted by the temporary bridge 2 ′ divided immediately above the road 3 is constructed by repeating the temporary bridge delivery process.
In addition, after the temporary bridge descent process, the work table 6, the movable mount 9 and the rail 13 are not used in the subsequent processes, so it is preferable to remove them if they affect the work.
[0031]
Above, the provisional設橋delivery process, by utilizing the space above the road 3, the temporary bridge 2 to build above the road 3, it is possible to perform the construction without affecting the passage of existing vehicles 30 .
[00 32 ]
Then, (2) in the three-dimensional detour descent process, as shown in FIG. 5 (b), the position of the support beam 5 of each column 4 supporting the divided temporary bridge 2 ′ is determined for each column 4. By setting the slope bridge L to the temporary bridge 2 by lowering it to the predetermined position, and installing the sliding parts 14 at both ends of the temporary bridge 2 and connecting to the road 3, a three-dimensional detour on the road 3 The road 1 can be easily constructed in a short time.
At this time, the support beam 5 is lowered by a descent device (not shown) installed on the column 4. The structure of the lowering device is not limited, but a simple structure such as a jack structure is preferable. For example, it is possible to use a hydraulic jack type device or the like that lowers its position by retracting a rod whose tip portion supports the support beam 5.
[00 33 ]
Finally, as shown in FIG. 6, the road 3 immediately below the three-dimensional detour 1 is secured while securing the traffic of the existing vehicle 30 using the road surface 15 of the three-dimensional detour 1 immediately above the road 3. After excavating and building a structure underground and restoring the road 3, the three-dimensional detour 1 is removed.
[00 34 ]
As described above, in the temporary bridge descent process, there is no need to install a device for descent of the temporary bridge 2 on the road 3, the descent work of the temporary bridge 2 is simplified, and the road 3 is stopped at night or the like. Construction can be completed.
[00 35 ]
[Second Embodiment]
In the first embodiment, the case of constructing a temporary three-dimensional detour has been described. However, in the method of constructing a three-dimensional detour according to the present invention, the three-dimensional detour is removed after the work in the lower part is completed. In addition, the present invention can also be applied to a case where a three-dimensional detour (hereinafter referred to as “main three-dimensional detour”) is used as it is as a main bridge.
In the second embodiment, a case where a three-dimensional detour is constructed using a bridge will be described as an example.
[00 36 ]
FIGS. 7A and 7B are views showing the bridge descent process of the three-dimensional detour of the present installation, where FIG. 7A is a side view of the bridge, and FIG. 7B is a side view of the bridge. FIG. 8 is a cross-sectional view taken along the line E-E of FIG. FIGS. 9A and 9B are views showing a bridge sending process, in which FIG. 9A is a front sectional view showing when the bridge is sent out, and FIG. 9B is a front sectional view showing when the reinforcing beam is sent out.
[00 37 ]
This construction method of the three-dimensional detour 1 'is substantially the same as the construction method of the temporary three-way detour 1, and only the structures of the bridge 20 and the temporary bridge 2 are different. That is, as shown in FIGS. 7 and 8, the bridge 20 is provided with a sound absorbing material 23 in the hollow portion 22 of the hollow bridge girder 21 constituting the bridge 20 in order to reduce noise with respect to the surrounding area. Since it is necessary to provide durability for long-term use, the structure is provided with the reinforcing beam 24 on the lower surface of the bridge 20. Therefore, in the feeding step by the movable gantry 9, as shown in FIG. 9A, first, the divided bridge 20 ′ is fed by the movable gantry 9 and temporarily received by the support beam 5 of the column 4. Next, as shown in FIG. 9B, the reinforcing girder 24 is fed out by the movable mount 9, integrated with the divided bridge 20 ', and then replaced with the support beam 5 of the support column 4, so that the road 3 A bridge 20 is constructed immediately above the road.
As a result, it is possible to easily construct the three-dimensional detour route 1 ′ having excellent durability and reducing the noise without affecting the traffic on the road 3.
[00 38 ]
As mentioned above, although this invention was demonstrated by the said embodiment, this invention is not limited to the said embodiment. Any device that has substantially the same configuration as the method for constructing a three-dimensional detour according to the present invention and that exhibits the same function and effect is included in the technical scope of the present invention.
[00 39 ]
【The invention's effect】
Therefore, in the method for constructing the three-dimensional detour according to the present invention, the three-dimensional detour is easily constructed by reducing the influence on the existing traffic above the traffic route, and the three-dimensional detour and the traffic route are easily connected. Therefore, it is possible to reduce the influence on the environment and economic activities of the surrounding community, shorten the construction period, and reduce the construction cost.
[Brief description of the drawings]
FIG. 1 is a view showing a temporary bridge sending-out process according to a first embodiment of the present invention, and is a side view of a work table and a column.
2A and 2B are diagrams showing a temporary bridge feeding process according to the first embodiment of the present invention, in which FIG. 2A is a cross-sectional view taken along line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along line BB in FIG. .
FIG. 3 is a view showing a temporary bridge delivery process according to the first embodiment of the present invention, and is a side view showing when the temporary bridge is delivered.
4 is a view showing a temporary bridge feeding process according to the first embodiment of the present invention, and is a cross-sectional view taken along the line CC in FIG. 3. FIG.
5A and 5B are diagrams showing a temporary bridge descent process according to the first embodiment of the present invention, in which FIG. 5A is a side view of the temporary bridge, and FIG.
FIG. 6 is a diagram showing a temporary bridge descent process according to the first embodiment of the present invention, and is a construction status diagram of the underground tunnel and the like after the temporary bridge descent (cross-sectional view taken along the line DD in FIG. 5B). .
FIGS. 7A and 7B are diagrams illustrating a bridge descent process of a permanent three-dimensional detour according to a second embodiment of the present invention, where FIG. 7A is a side view of the bridge, and FIG. 7B is a side view of the bridge descent; .
FIG. 8 is a cross-sectional view taken along line EE of FIG. 7 (b) showing a permanent three-dimensional detour according to a second embodiment of the present invention.
FIGS. 9A and 9B are diagrams showing a bridge delivery process according to a second embodiment of the present invention, where FIG. 9A is a front cross-sectional view showing when the bridge is delivered, and FIG. 9B is a diagram showing when the reinforcing beam is delivered. It is front sectional drawing.
[Explanation of symbols]
1. . . . . . . Temporary three-dimensional detour 1 '. . . . . . 1. Three-dimensional detour of permanent installation . . . . . . Temporary bridge 2 '. . . . . . Divided temporary bridge 3. . . . . . . Existing road 3 '. . . . . . 3. Shoulder on existing road . . . . . . Strut 5. . . . . . . Support beam for the column 6. . . . . . . Working table 7. . . . . . . 7. Leg of work table . . . . . . Platform stage 9. . . . . . . Movable mount 10. . . . . . . 10. Support beam for movable platform . . . . . . 11. Legs of movable platform . . . . . . 13. Mobile pedestal wheel . . . . . . Rail 14. . . . . . . Sliding part 15. . . . . . . Three-dimensional detour road 20. . . . . . . Bridge 20 '. . . . . . Split bridge 21. . . . . . . Bridge girder 22. . . . . . . Hollow part of bridge girder 23. . . . . . . Sound absorbing material 24. . . . . . . Reinforcing girder 30. . . . . . . Vehicle L. . . . . . . Ramp part of three-dimensional detour

Claims (3)

以下の工程を含むことを特徴とする、交通路における立体式迂回路の構築方法。
(1)交通路に立設した作業台から分割された橋梁を可動式架台に受け替え、前記交通路で前記可動式架台を移動させることにより、前記作業台から前記分割された橋梁を順次に送り出し、前記可動式架台によって搬送された前記分割された橋梁を、前記交通路に沿って所定の間隔をあけて打設した複数の支柱間に架設することで、前記交通路の上方に橋梁を構築する、橋梁送り出し工程。
(2)前記橋梁の所定部を降下させて、前記橋梁と前記交通路を接続することで、前記橋梁によって前記交通路に立体式迂回路を構築する、橋梁降下工程。
A method for constructing a three-dimensional detour on a traffic road, comprising the following steps.
(1) instead receives the bridges split from worktable erected to exchange passage movable platform, by moving the movable platform in the transport path, successively to the divided bridges from the worktable The divided bridge transported by the movable platform is erected between a plurality of struts placed at predetermined intervals along the traffic path , so that a bridge is formed above the traffic path. Bridge delivery process to build.
(2) A bridge lowering step of constructing a three-dimensional detour in the traffic road by the bridge by lowering a predetermined portion of the bridge and connecting the bridge and the traffic road.
前記橋梁降下工程において、前記橋梁の所定部を前記支柱の降下装置によって降下させることを特徴とする、請求項1に記載の立体式迂回路の構築方法。The method for constructing a three-dimensional detour according to claim 1, wherein, in the bridge lowering step, a predetermined part of the bridge is lowered by the support lowering device. 前記橋梁が仮設橋であることを特徴とする、請求項1または請求項に記載の立体式迂回路の構築方法。The method for constructing a three-dimensional detour according to claim 1 or 2 , wherein the bridge is a temporary bridge.
JP2001030605A 2000-09-08 2001-02-07 Construction method of three-dimensional detour Expired - Fee Related JP3692043B2 (en)

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JP4519588B2 (en) * 2004-09-14 2010-08-04 鹿島建設株式会社 Three-dimensional intersection construction method
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CN105568799A (en) * 2016-01-22 2016-05-11 绍兴县明煌建材科技有限公司 Efficient assembly type transportation junction fast and convenient to use
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