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A platform for research: civil engineering, architecture and urbanism
Segment dismantling construction method in range of subway station foundation pit
The invention discloses a segment dismantling construction method in the range of a subway station foundation pit. The method includes the steps that S1, subway station foundation pit earthwork abovea segment is excavated, and excavation is stopped until the thickness of covering soil above the segment is reduced to 1.2-1.5 m; and after a shield tunneling machine tunnels and passes through the construction range of a whole subway station, the covering soil above the segment is continuously excavated until the covering soil with the thickness of 1.2-1.5 m is excavated; S2, a steel support supporting structure is installed; and S3, the segment is dismounted. According to the segment dismantling construction method in the range of the subway station foundation pit, the construction steps aresimple and reasonable, and the segment is reinforced in the station foundation pit excavation and tunnel segment removal process, special equipment (such as a trolley) is adopted for segment removaland lifting out, and therefore accidents such as segment falling can be avoided.
本发明公开了一种地铁车站基坑范围内的管片拆除施工方法，其包括如下步骤：S1、开挖管片上方的地铁车站基坑土方，直至管片上方的覆土厚度降至1.2‑1.5m时停止开挖；待盾构机掘进并通过整个地铁车站施工范围后，再继续开挖管片上方厚的覆土，直至将该1.2‑1.5m厚的覆土挖除；S2、安装钢支撑支护结构；S3、拆除管片。本发明施工步骤简单、合理，在车站基坑开挖和隧道内管片拆除过程中，对管片进行加固，采用专门设备(如台车)进行管片拆除和吊出，由此可避免产生管片脱落等事故。
Segment dismantling construction method in range of subway station foundation pit
The invention discloses a segment dismantling construction method in the range of a subway station foundation pit. The method includes the steps that S1, subway station foundation pit earthwork abovea segment is excavated, and excavation is stopped until the thickness of covering soil above the segment is reduced to 1.2-1.5 m; and after a shield tunneling machine tunnels and passes through the construction range of a whole subway station, the covering soil above the segment is continuously excavated until the covering soil with the thickness of 1.2-1.5 m is excavated; S2, a steel support supporting structure is installed; and S3, the segment is dismounted. According to the segment dismantling construction method in the range of the subway station foundation pit, the construction steps aresimple and reasonable, and the segment is reinforced in the station foundation pit excavation and tunnel segment removal process, special equipment (such as a trolley) is adopted for segment removaland lifting out, and therefore accidents such as segment falling can be avoided.
本发明公开了一种地铁车站基坑范围内的管片拆除施工方法，其包括如下步骤：S1、开挖管片上方的地铁车站基坑土方，直至管片上方的覆土厚度降至1.2‑1.5m时停止开挖；待盾构机掘进并通过整个地铁车站施工范围后，再继续开挖管片上方厚的覆土，直至将该1.2‑1.5m厚的覆土挖除；S2、安装钢支撑支护结构；S3、拆除管片。本发明施工步骤简单、合理，在车站基坑开挖和隧道内管片拆除过程中，对管片进行加固，采用专门设备(如台车)进行管片拆除和吊出，由此可避免产生管片脱落等事故。
Segment dismantling construction method in range of subway station foundation pit
一种地铁车站基坑范围内的管片拆除施工方法
LIU XUDONG (author) / ZHAO PENG (author) / XU JIANNING (author) / JIN ZENG (author) / TAN XUEMIN (author) / SHI YOUZHI (author) / ZHOU YIKUN (author) / LIN JINCHEN (author) / WANG XIAOPING (author) / JING ZHIQIANG (author)
2021-01-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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