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A platform for research: civil engineering, architecture and urbanism
Subway tunnel construction vertical shaft foundation pit supporting structure without inner support and construction method
The invention provides a subway tunnel construction vertical shaft foundation pit supporting structure without an inner support and a construction method. The supporting structure comprises fender posts, high-pressure jet grouting piles, concrete enclosing purlins and cushion layers, wherein the high-pressure jet grouting piles, the fender posts and the concrete enclosing purlins are sequentially arranged in the direction from outside to inside of the foundation pit, the high-pressure jet grouting piles and the fender posts are arranged in an engaged mode, the concrete enclosing purlins are horizontally arranged on the vertical face of the foundation pit at certain intervals, and the four edges of the concrete enclosing purlins are connected to the fender posts through embedded steel bars and steel bar connectors correspondingly. According to the subway tunnel vertical shaft foundation pit supporting structure without the inner support and the construction method, on the premise that the construction site is limited, the problem that the construction space of subway construction vertical shaft foundation pit supporting is needed is effectively solved.
本发明提供了一种不设内支撑的地铁隧道施工竖井基坑支护结构及施工方法。该支护结构包括围护桩、高压旋喷桩、砼围檩、垫层。高压旋喷桩、围护桩及砼围檩依次从基坑外往内方向布置，高压旋喷桩与围护桩咬合布置。砼围檩在基坑立面上呈一定间隔水平布置，其四边分别与围护桩采用预埋钢筋及钢筋接驳器连接。本发明提出的一种不设内支撑的地铁隧道竖井基坑支护结构及施工方法，在施工场地受限的前提下，有效地解决了地铁施工竖井基坑支护施工空间需要的问题。
Subway tunnel construction vertical shaft foundation pit supporting structure without inner support and construction method
The invention provides a subway tunnel construction vertical shaft foundation pit supporting structure without an inner support and a construction method. The supporting structure comprises fender posts, high-pressure jet grouting piles, concrete enclosing purlins and cushion layers, wherein the high-pressure jet grouting piles, the fender posts and the concrete enclosing purlins are sequentially arranged in the direction from outside to inside of the foundation pit, the high-pressure jet grouting piles and the fender posts are arranged in an engaged mode, the concrete enclosing purlins are horizontally arranged on the vertical face of the foundation pit at certain intervals, and the four edges of the concrete enclosing purlins are connected to the fender posts through embedded steel bars and steel bar connectors correspondingly. According to the subway tunnel vertical shaft foundation pit supporting structure without the inner support and the construction method, on the premise that the construction site is limited, the problem that the construction space of subway construction vertical shaft foundation pit supporting is needed is effectively solved.
本发明提供了一种不设内支撑的地铁隧道施工竖井基坑支护结构及施工方法。该支护结构包括围护桩、高压旋喷桩、砼围檩、垫层。高压旋喷桩、围护桩及砼围檩依次从基坑外往内方向布置，高压旋喷桩与围护桩咬合布置。砼围檩在基坑立面上呈一定间隔水平布置，其四边分别与围护桩采用预埋钢筋及钢筋接驳器连接。本发明提出的一种不设内支撑的地铁隧道竖井基坑支护结构及施工方法，在施工场地受限的前提下，有效地解决了地铁施工竖井基坑支护施工空间需要的问题。
Subway tunnel construction vertical shaft foundation pit supporting structure without inner support and construction method
一种不设内支撑的地铁隧道施工竖井基坑支护结构及施工方法
ZHOU HUALONG (author) / DENG JUNQIANG (author) / LIU XIAOHUA (author) / WEI BIN (author) / CAO SHIDING (author) / YIN ZHEBIN (author)
2022-01-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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