Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pit-in-pit construction method for mucky soil area
The invention discloses a pit-in-pit construction method for a mucky soil area. The method comprises the following steps: 1, constructing a pit bottom reinforcing construction structure; 2, constructing the steel sheet piles; 3, top-layer earthwork is excavated; 4, excavating and supporting an inside earth excavation area; 5, excavating a first layer of annular soil pit and a third layer of inner side soil pit; 6, excavating a second layer of annular soil pit and a fourth layer of inner side soil pit; and seventhly, a pit-in-pit bearing platform is poured, and the steel sheet piles are dismantled. According to the method, the steel sheet piles are driven before overall earth excavation, pit-in-pit and steel sheet pile outer side earth excavation interpenetrating construction is formed on the premise that construction safety is guaranteed, the completion period of an overall raft is greatly shortened, a large foundation pit overall supporting system is formed more quickly, the exposure time of a deep foundation pit is shortened, and the construction efficiency is improved. The construction operation risk of the mucky soil deep foundation pit is reduced; through the procedure of preposed driving of the steel sheet pile, driving of the whole steel sheet pile is completed at a time, and the pile body strength and the waterproof effect of the steel sheet pile are guaranteed.
本发明公开了一种淤泥质土地区坑中坑施工方法，该方法包括：一、施工坑底加固施工结构；二、施工钢板桩；三、开挖顶层土方；四、开挖并支护内侧土方开挖区域；五、开挖第一层环形土坑和第三层内侧土坑；六、开挖第二层环形土坑和第四层内侧土坑；七、浇筑坑中坑承台并拆除钢板桩。本发明在整体土方开挖前施打钢板桩，保证施工安全的前提下形成坑中坑与钢板桩外侧土方开挖穿插施工，大大缩短了整体筏板的完工工期，更快地形成大基坑整体支护体系，减少深基坑暴露时间，降低了淤泥质土深基坑存在的施工作业风险；通过前置施打钢板桩的工序，一次完成钢板桩整桩施打，保证了钢板桩桩身强度和隔水效果。
Pit-in-pit construction method for mucky soil area
The invention discloses a pit-in-pit construction method for a mucky soil area. The method comprises the following steps: 1, constructing a pit bottom reinforcing construction structure; 2, constructing the steel sheet piles; 3, top-layer earthwork is excavated; 4, excavating and supporting an inside earth excavation area; 5, excavating a first layer of annular soil pit and a third layer of inner side soil pit; 6, excavating a second layer of annular soil pit and a fourth layer of inner side soil pit; and seventhly, a pit-in-pit bearing platform is poured, and the steel sheet piles are dismantled. According to the method, the steel sheet piles are driven before overall earth excavation, pit-in-pit and steel sheet pile outer side earth excavation interpenetrating construction is formed on the premise that construction safety is guaranteed, the completion period of an overall raft is greatly shortened, a large foundation pit overall supporting system is formed more quickly, the exposure time of a deep foundation pit is shortened, and the construction efficiency is improved. The construction operation risk of the mucky soil deep foundation pit is reduced; through the procedure of preposed driving of the steel sheet pile, driving of the whole steel sheet pile is completed at a time, and the pile body strength and the waterproof effect of the steel sheet pile are guaranteed.
本发明公开了一种淤泥质土地区坑中坑施工方法，该方法包括：一、施工坑底加固施工结构；二、施工钢板桩；三、开挖顶层土方；四、开挖并支护内侧土方开挖区域；五、开挖第一层环形土坑和第三层内侧土坑；六、开挖第二层环形土坑和第四层内侧土坑；七、浇筑坑中坑承台并拆除钢板桩。本发明在整体土方开挖前施打钢板桩，保证施工安全的前提下形成坑中坑与钢板桩外侧土方开挖穿插施工，大大缩短了整体筏板的完工工期，更快地形成大基坑整体支护体系，减少深基坑暴露时间，降低了淤泥质土深基坑存在的施工作业风险；通过前置施打钢板桩的工序，一次完成钢板桩整桩施打，保证了钢板桩桩身强度和隔水效果。
Pit-in-pit construction method for mucky soil area
一种淤泥质土地区坑中坑施工方法
WU YAOMIN (Autor:in) / WANG TAO (Autor:in) / XI BAOFENG (Autor:in) / YAN HAN (Autor:in) / HUANG LUEXUAN (Autor:in) / WENG XI (Autor:in)
24.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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