Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of dewatering well in foundation pit
The invention belongs to the technical field of foundation pit construction, and discloses a construction method for a dewatering well in a foundation pit. The construction method of the dewatering well in the foundation pit comprises the steps that S1, a mounting square hole is cut in a trestle above a leakage point; s2, a pile casing is vertically and downwards mounted through the mounting square hole, and the end of the pile casing extends out of the trestle; s3, a resonance-free hammer is used for vibrating the pile casing to the position from the ground to the top face of the confined water layer, and then the pile casing is erected on the trestle; and S4, a drilling machine is used for drilling in the pile casing till the designed depth is reached, and the dewatering well is formed. According to the construction method of the dewatering well in the foundation pit, the water pressure of underground water in the foundation pit is reduced, and the problem of pit bottom gushing in the foundation pit is effectively relieved, so that conditions are created for subsequent construction; in addition, due to the fact that the pile casing is erected on the trestle above the foundation pit, the pile casing and an underground water layer form a communicating vessel structure, large pressure is formed at the bottom of the pile casing, and pressure balance of the underground water layer in the foundation pit is effectively guaranteed.
本发明属于基坑施工技术领域，公开了一种基坑内降水井施工方法。该基坑内降水井施工方法包括：S1、在渗漏点位置处上方的栈桥上切割安装方孔；S2、通过安装方孔竖直向下安装护筒，并使护筒的端部伸出栈桥；S3、使用免共振锤将护筒振入地面至承压水层顶面位置，随后将护筒搭设在栈桥上；S4、使用钻机在护筒内部进行钻孔，直至钻设至设计深度，以形成降水井。该基坑内降水井施工方法降低了基坑中地下水的水压，有效缓解了基坑内部坑底突涌的问题，从而为后续施工创造了条件；此外，由于护筒搭设在基坑上方的栈桥上，从而与地下水层形成连通器结构，并在护筒底部处形成较大压强，有效保证了基坑内部地下水层的压力平衡。
Construction method of dewatering well in foundation pit
The invention belongs to the technical field of foundation pit construction, and discloses a construction method for a dewatering well in a foundation pit. The construction method of the dewatering well in the foundation pit comprises the steps that S1, a mounting square hole is cut in a trestle above a leakage point; s2, a pile casing is vertically and downwards mounted through the mounting square hole, and the end of the pile casing extends out of the trestle; s3, a resonance-free hammer is used for vibrating the pile casing to the position from the ground to the top face of the confined water layer, and then the pile casing is erected on the trestle; and S4, a drilling machine is used for drilling in the pile casing till the designed depth is reached, and the dewatering well is formed. According to the construction method of the dewatering well in the foundation pit, the water pressure of underground water in the foundation pit is reduced, and the problem of pit bottom gushing in the foundation pit is effectively relieved, so that conditions are created for subsequent construction; in addition, due to the fact that the pile casing is erected on the trestle above the foundation pit, the pile casing and an underground water layer form a communicating vessel structure, large pressure is formed at the bottom of the pile casing, and pressure balance of the underground water layer in the foundation pit is effectively guaranteed.
本发明属于基坑施工技术领域，公开了一种基坑内降水井施工方法。该基坑内降水井施工方法包括：S1、在渗漏点位置处上方的栈桥上切割安装方孔；S2、通过安装方孔竖直向下安装护筒，并使护筒的端部伸出栈桥；S3、使用免共振锤将护筒振入地面至承压水层顶面位置，随后将护筒搭设在栈桥上；S4、使用钻机在护筒内部进行钻孔，直至钻设至设计深度，以形成降水井。该基坑内降水井施工方法降低了基坑中地下水的水压，有效缓解了基坑内部坑底突涌的问题，从而为后续施工创造了条件；此外，由于护筒搭设在基坑上方的栈桥上，从而与地下水层形成连通器结构，并在护筒底部处形成较大压强，有效保证了基坑内部地下水层的压力平衡。
Construction method of dewatering well in foundation pit
基坑内降水井施工方法
ZHOU ZHENG (Autor:in) / WANG TAO (Autor:in) / DING DESHEN (Autor:in) / QIAN LIANG (Autor:in) / LI CAO (Autor:in) / JI WEI (Autor:in) / MA SHENG (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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