Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater foundation pit excavation method
The invention discloses an underwater foundation pit excavation method. The method comprises the steps that firstly, an underground diaphragm wall is constructed in a soil body; secondly, a foundation pit is excavated in the underground diaphragm wall without drainage; thirdly, after the foundation pit is excavated by a certain depth, a suspension type support is adopted as a support of the foundation pit, and the suspension type support is constructed in the foundation pit and arranged on the underground diaphragm wall; fourthly, the foundation pit continues to be excavated without drainage, a suspended support is rigidly connected to the upper portion of the suspended support at the top through a rigid connecting piece, and the connected multiple suspended supports integrally sink to the preset position in the foundation pit with underground water and are arranged on the underground diaphragm wall at the corresponding position; and fifthly, the fourth step is executed repeatedly till all the suspended supports in the foundation pit are constructed, and excavation is conducted without drainage till the bottom elevation of the foundation pit is reached. The construction difficulty of the foundation pit supporting system can be reduced, and the effects that the construction cost is low, and foundation pit drainage is avoided are achieved.
本发明公开一种提供一种水下基坑开挖方法，包括：第一步，在土体内施工地下连续墙；第二步，在地下连续墙内不排水开挖基坑；第三步，在基坑开挖一定深度后，采用悬浮式支撑作为基坑的支撑，在基坑内施工一道悬浮式支撑并设置在地下连续墙上；第四步，继续不排水开挖基坑，在顶部的悬浮式支撑上方通过刚性连接件刚性连接一道悬浮式支撑，将连接后的多道悬浮式支撑整体下沉至有地下水的基坑内的预定位置并设置在相应位置的地下连续墙上；第五步，重复执行第四步，直到基坑内所有悬浮式支撑施工完毕，不排水开挖至基坑底部标高。本发明能够降低基坑支撑体系的搭建难度，具有施工成本低，避免了基坑排水的效果。
Underwater foundation pit excavation method
The invention discloses an underwater foundation pit excavation method. The method comprises the steps that firstly, an underground diaphragm wall is constructed in a soil body; secondly, a foundation pit is excavated in the underground diaphragm wall without drainage; thirdly, after the foundation pit is excavated by a certain depth, a suspension type support is adopted as a support of the foundation pit, and the suspension type support is constructed in the foundation pit and arranged on the underground diaphragm wall; fourthly, the foundation pit continues to be excavated without drainage, a suspended support is rigidly connected to the upper portion of the suspended support at the top through a rigid connecting piece, and the connected multiple suspended supports integrally sink to the preset position in the foundation pit with underground water and are arranged on the underground diaphragm wall at the corresponding position; and fifthly, the fourth step is executed repeatedly till all the suspended supports in the foundation pit are constructed, and excavation is conducted without drainage till the bottom elevation of the foundation pit is reached. The construction difficulty of the foundation pit supporting system can be reduced, and the effects that the construction cost is low, and foundation pit drainage is avoided are achieved.
本发明公开一种提供一种水下基坑开挖方法，包括：第一步，在土体内施工地下连续墙；第二步，在地下连续墙内不排水开挖基坑；第三步，在基坑开挖一定深度后，采用悬浮式支撑作为基坑的支撑，在基坑内施工一道悬浮式支撑并设置在地下连续墙上；第四步，继续不排水开挖基坑，在顶部的悬浮式支撑上方通过刚性连接件刚性连接一道悬浮式支撑，将连接后的多道悬浮式支撑整体下沉至有地下水的基坑内的预定位置并设置在相应位置的地下连续墙上；第五步，重复执行第四步，直到基坑内所有悬浮式支撑施工完毕，不排水开挖至基坑底部标高。本发明能够降低基坑支撑体系的搭建难度，具有施工成本低，避免了基坑排水的效果。
Underwater foundation pit excavation method
水下基坑开挖方法
LI RONGSHUAI (Autor:in) / WANG SHIKUN (Autor:in) / MEI YINGBAO (Autor:in) / ZHANG XUEJIN (Autor:in) / CHEN FENGJUN (Autor:in) / JIANG XUCHUN (Autor:in) / ZHU YANDENG (Autor:in) / YAO SHUYI (Autor:in) / SHEN YIHONG (Autor:in)
29.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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