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A platform for research: civil engineering, architecture and urbanism
Construction method for foundation pit dewatering and supporting
The invention discloses a construction method for foundation pit dewatering and supporting. The construction method comprises the steps that the plane size of a main body frame is determined based on the size of an excavation face of a foundation pit; a cutting tool, a transmission chain and a motor are mounted in each independent space of the main body frame; the four corners of the foundation pit are each provided with a ground counter-force support, and pushing columns are installed on the ground counter-force supports. The main body frame is pushed downwards through a pushing column, and meanwhile, a motor is started to enable a cutting tool to cut a soil body, so that the main body frame is tunneled downwards; and the main body frame serves as a base of the main body structure, the main body structure is installed when the main body frame is tunneled to the corresponding designed elevation, the ground counter-force support acts on the main body structure through the pushing column, and sinking of the main body structure and the main body frame is completed. The method has the advantages that pre-supporting and pre-dewatering of excavation of each layer of soil body of the foundation pit can be realized through sinking of the main body frame and cutting of the bottom soil body, so that the exposure time of excavation of the foundation pit is shortened, the construction period is shortened, and the influence of construction on the surrounding environment is reduced.
本发明公开了一种基坑降水与支护的施工方法，包括：基于基坑开挖面尺寸确定主体框架的平面尺寸；在主体框架的每个独立空间内安装切削刀具、传动链条和电机；在基坑的四个角部各设置一个地面反力支座，并在地面反力支座上安装顶推柱；通过顶推柱向下顶推主体框架，同时开启电机使切削刀具进行土体切削，以使主体框架向下掘进；将主体框架作为主体结构的底座，在主体框架掘进至相应设计标高时进行主体结构的安装，地面反力支座通过顶推柱作用于主体结构，完成主体结构和主体框架的下沉。本发明的优点是：通过主体框架下沉与底部土体切削，可实现基坑每层土体开挖预支护与预降水，从而缩短基坑开挖暴露时间、减少工期及减小施工对周边环境的影响。
Construction method for foundation pit dewatering and supporting
The invention discloses a construction method for foundation pit dewatering and supporting. The construction method comprises the steps that the plane size of a main body frame is determined based on the size of an excavation face of a foundation pit; a cutting tool, a transmission chain and a motor are mounted in each independent space of the main body frame; the four corners of the foundation pit are each provided with a ground counter-force support, and pushing columns are installed on the ground counter-force supports. The main body frame is pushed downwards through a pushing column, and meanwhile, a motor is started to enable a cutting tool to cut a soil body, so that the main body frame is tunneled downwards; and the main body frame serves as a base of the main body structure, the main body structure is installed when the main body frame is tunneled to the corresponding designed elevation, the ground counter-force support acts on the main body structure through the pushing column, and sinking of the main body structure and the main body frame is completed. The method has the advantages that pre-supporting and pre-dewatering of excavation of each layer of soil body of the foundation pit can be realized through sinking of the main body frame and cutting of the bottom soil body, so that the exposure time of excavation of the foundation pit is shortened, the construction period is shortened, and the influence of construction on the surrounding environment is reduced.
本发明公开了一种基坑降水与支护的施工方法，包括：基于基坑开挖面尺寸确定主体框架的平面尺寸；在主体框架的每个独立空间内安装切削刀具、传动链条和电机；在基坑的四个角部各设置一个地面反力支座，并在地面反力支座上安装顶推柱；通过顶推柱向下顶推主体框架，同时开启电机使切削刀具进行土体切削，以使主体框架向下掘进；将主体框架作为主体结构的底座，在主体框架掘进至相应设计标高时进行主体结构的安装，地面反力支座通过顶推柱作用于主体结构，完成主体结构和主体框架的下沉。本发明的优点是：通过主体框架下沉与底部土体切削，可实现基坑每层土体开挖预支护与预降水，从而缩短基坑开挖暴露时间、减少工期及减小施工对周边环境的影响。
Construction method for foundation pit dewatering and supporting
一种基坑降水与支护的施工方法
YANG TAO (author) / LUAN HUANQIANG (author) / XIA ZONGJUN (author) / LIN XIAN (author) / SHI HONGXIA (author) / SUN HANWEN (author) / TIAN GUOWEN (author)
2024-10-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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