Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for replacing uplift pile with two-in-one underground diaphragm wall
The invention discloses a construction method for replacing an uplift pile with a'two-in-one 'underground diaphragm wall, which comprises the following steps of: acquiring an uplift coefficient of a foundation pit soil layer and a compressive limit side resistance standard value of pile side surface stratum soil on the basis of the geological condition of the foundation pit soil layer; based on the single-pile distance, the anti-pulling coefficient and the anti-compression limit side resistance standard value of the pile side surface stratum soil, the anti-pulling limit bearing capacity standard value of the two-in-one diaphragm wall is calculated; the uplift ultimate bearing capacity standard value of the two-in-one diaphragm wall is compared with the uplift bearing capacity standard value of the single pile; a test panel of the two-in-one diaphragm wall is constructed in the foundation pit; testing the uplift ultimate bearing capacity standard value of the test amplitude; and after the uplift ultimate bearing capacity standard value of the test amplitude is larger than the uplift bearing capacity standard value of the single pile, the two-in-one underground diaphragm wall is constructed to replace the uplift pile. The problem that in the deep foundation pit construction process, due to the factors such as site limitation, complex working environment and confined water influence, the uplift pile is difficult to construct is solved.
本发明公开了一种“两墙合一”地下连续墙替代抗拔桩的施工方法，包括：基于基坑土层地质情况，获取基坑土层的抗拔系数及桩侧表面地层土的抗压极限侧阻力标准值；基于单桩间距、抗拔系数及桩侧表面地层土的抗压极限侧阻力标准值，计算二合一地连墙的抗拔极限承载力标准值；将二合一地连墙的抗拔极限承载力标准值与单桩抗拔承载力标准值进行比对；于基坑内施工二合一地连墙的试验幅；测试试验幅的抗拔极限承载力标准值；在试验幅的抗拔极限承载力标准值大于单桩抗拔承载力标准值后，施工二合一地连墙以替换抗拔桩。本发明解决了在深基坑施工中，遇场地受限、作业环境复杂、承压水影响等因素导致抗拔桩难以施工的问题。
Construction method for replacing uplift pile with two-in-one underground diaphragm wall
The invention discloses a construction method for replacing an uplift pile with a'two-in-one 'underground diaphragm wall, which comprises the following steps of: acquiring an uplift coefficient of a foundation pit soil layer and a compressive limit side resistance standard value of pile side surface stratum soil on the basis of the geological condition of the foundation pit soil layer; based on the single-pile distance, the anti-pulling coefficient and the anti-compression limit side resistance standard value of the pile side surface stratum soil, the anti-pulling limit bearing capacity standard value of the two-in-one diaphragm wall is calculated; the uplift ultimate bearing capacity standard value of the two-in-one diaphragm wall is compared with the uplift bearing capacity standard value of the single pile; a test panel of the two-in-one diaphragm wall is constructed in the foundation pit; testing the uplift ultimate bearing capacity standard value of the test amplitude; and after the uplift ultimate bearing capacity standard value of the test amplitude is larger than the uplift bearing capacity standard value of the single pile, the two-in-one underground diaphragm wall is constructed to replace the uplift pile. The problem that in the deep foundation pit construction process, due to the factors such as site limitation, complex working environment and confined water influence, the uplift pile is difficult to construct is solved.
本发明公开了一种“两墙合一”地下连续墙替代抗拔桩的施工方法，包括：基于基坑土层地质情况，获取基坑土层的抗拔系数及桩侧表面地层土的抗压极限侧阻力标准值；基于单桩间距、抗拔系数及桩侧表面地层土的抗压极限侧阻力标准值，计算二合一地连墙的抗拔极限承载力标准值；将二合一地连墙的抗拔极限承载力标准值与单桩抗拔承载力标准值进行比对；于基坑内施工二合一地连墙的试验幅；测试试验幅的抗拔极限承载力标准值；在试验幅的抗拔极限承载力标准值大于单桩抗拔承载力标准值后，施工二合一地连墙以替换抗拔桩。本发明解决了在深基坑施工中，遇场地受限、作业环境复杂、承压水影响等因素导致抗拔桩难以施工的问题。
Construction method for replacing uplift pile with two-in-one underground diaphragm wall
“两墙合一”地下连续墙替代抗拔桩的施工方法
WANG CONG (Autor:in) / ZHANG YUANHUI (Autor:in) / ZHAO YONGKUAN (Autor:in) / WANG JIN (Autor:in) / HE JUAN (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
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