Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underground continuous wall and secant pile optimized connection method
The invention relates to an underground continuous wall and secant pile optimized connection method. The method comprises the steps that firstly, a pre-dug section at the corner is added or utilized as a grooving part of an underground continuous wall; secondly, concrete is poured to the underground continuous wall at a construction joint and the pre-dug section; and finally, plain concrete of the pre-dug section of the underground wall is directly cut during secant pile and plain pile construction, and a secant joint is formed by a formed plain pile and the underground continuous wall. By means of the optimized method, the problem that a connection section is difficult to treat is solved, meanwhile, the joint can be optimized to form a U-shaped secant form, and the water stop effect of the weak part of the joint is more effectively guaranteed. In the process, the underground continuous wall, the pre-dug section of the underground continuous wall and the secant plain pile are constructed firstly, the concrete pouring time of the pre-dug section on one side of the plain pile and the concrete pouring time of the plain pile on the other side of the plain pile are basically consistent, the strength of the plain concrete cut on the left side and the strength of the plain concrete cut on the right side are basically consistent when rotary excavating equipment is adopted for forming holes in the secant pile and the plain pile, hole forming drilling can be effectively conducted, the construction efficiency can be improved, and the economic cost can be further reduced.
本发明涉及一种地下连续墙与咬合桩优化连接方法，首先，增加或利用转角处的预挖段作为地下连续墙成槽部分；然后，施工接头处该幅地下连续墙并连同预挖段一起浇筑混凝土；最后，采用咬合桩荤桩施工时直接切削地墙预挖段的素混凝土，荤桩成桩后与地下连续墙形成咬合接头。通过本发明的优化方法既保证了连接段难处理的问题，同时还能优化接头形成U型咬合形式，更加有效保障了接头薄弱部位的止水效果。工序上先施工地下连续墙及其预挖段和咬合素桩，保证荤桩两侧一侧预挖段、一侧素桩的浇筑混凝土时间基本一致，采用旋挖设备进行咬合桩荤桩成孔时左右两侧切削的素混凝土强度基本一致，既能有效成孔钻进并提高施工效率，也能进一步降低经济成本。
Underground continuous wall and secant pile optimized connection method
The invention relates to an underground continuous wall and secant pile optimized connection method. The method comprises the steps that firstly, a pre-dug section at the corner is added or utilized as a grooving part of an underground continuous wall; secondly, concrete is poured to the underground continuous wall at a construction joint and the pre-dug section; and finally, plain concrete of the pre-dug section of the underground wall is directly cut during secant pile and plain pile construction, and a secant joint is formed by a formed plain pile and the underground continuous wall. By means of the optimized method, the problem that a connection section is difficult to treat is solved, meanwhile, the joint can be optimized to form a U-shaped secant form, and the water stop effect of the weak part of the joint is more effectively guaranteed. In the process, the underground continuous wall, the pre-dug section of the underground continuous wall and the secant plain pile are constructed firstly, the concrete pouring time of the pre-dug section on one side of the plain pile and the concrete pouring time of the plain pile on the other side of the plain pile are basically consistent, the strength of the plain concrete cut on the left side and the strength of the plain concrete cut on the right side are basically consistent when rotary excavating equipment is adopted for forming holes in the secant pile and the plain pile, hole forming drilling can be effectively conducted, the construction efficiency can be improved, and the economic cost can be further reduced.
本发明涉及一种地下连续墙与咬合桩优化连接方法，首先，增加或利用转角处的预挖段作为地下连续墙成槽部分；然后，施工接头处该幅地下连续墙并连同预挖段一起浇筑混凝土；最后，采用咬合桩荤桩施工时直接切削地墙预挖段的素混凝土，荤桩成桩后与地下连续墙形成咬合接头。通过本发明的优化方法既保证了连接段难处理的问题，同时还能优化接头形成U型咬合形式，更加有效保障了接头薄弱部位的止水效果。工序上先施工地下连续墙及其预挖段和咬合素桩，保证荤桩两侧一侧预挖段、一侧素桩的浇筑混凝土时间基本一致，采用旋挖设备进行咬合桩荤桩成孔时左右两侧切削的素混凝土强度基本一致，既能有效成孔钻进并提高施工效率，也能进一步降低经济成本。
Underground continuous wall and secant pile optimized connection method
地下连续墙与咬合桩优化连接方法
YAN RONG (Autor:in) / CHEN YIGUI (Autor:in) / LUO YUNFENG (Autor:in) / XIANG CHUN (Autor:in) / ZHANG BIAO (Autor:in) / GU HUAN (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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