A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deformation control method for deep foundation pit support structure in water-rich stratum
The invention discloses a deformation control method for a deep foundation pit support structure in a water-rich stratum, which relates to the technical field of foundation pit construction and comprises the following steps of: performing separation construction on the whole foundation pit by adopting a three-shaft stirring pile, and dewatering the foundation pit as required according to a separation result; recharge wells are arranged around the station, and recharge measures are taken according to the water level change situation outside the pit caused by rainfall; geological radar detection is carried out on traffic roads and the ground surface within the preset range of the foundation pit, and WSS grouting reinforcement is carried out on the uncompact and void areas of the ground according to the radar detection report result and the corresponding depth; and pre-buried sleeve valve pipe tracking grouting reinforcement is conducted on the building within the influence range of the foundation pit, so that reinforced soil bodies are connected into a whole within the plane and depth range. The problem of deformation of the water-rich stratum deep foundation pit support structure can be effectively solved, the surrounding environment risk before and after foundation pit excavation is reduced, and safe and smooth excavation of the deep foundation pit is achieved.
本发明公开了一种富水地层深基坑围护结构变形控制方法，涉及基坑施工技术领域，包括以下步骤：采用三轴搅拌桩对基坑整体进行分隔施工，并使基坑依照分隔结果按需降水；在车站周边设置回灌井，根据降水引起的坑外水位变化情况采取回灌措施；对基坑预设范围内的交通道路及地表进行地质雷达探测，根据雷达探测报告结果对地面不密实及脱空区域按照相应深度进行WSS注浆加固；对基坑影响范围内的建筑物进行预埋袖阀管跟踪注浆加固，以使被加固土体在平面和深度范围内连成整体。本发明可以有效地解决富水地层深基坑围护结构变形的问题，降低基坑开挖前后周边环境风险，实现深基坑安全顺利开挖。
Deformation control method for deep foundation pit support structure in water-rich stratum
The invention discloses a deformation control method for a deep foundation pit support structure in a water-rich stratum, which relates to the technical field of foundation pit construction and comprises the following steps of: performing separation construction on the whole foundation pit by adopting a three-shaft stirring pile, and dewatering the foundation pit as required according to a separation result; recharge wells are arranged around the station, and recharge measures are taken according to the water level change situation outside the pit caused by rainfall; geological radar detection is carried out on traffic roads and the ground surface within the preset range of the foundation pit, and WSS grouting reinforcement is carried out on the uncompact and void areas of the ground according to the radar detection report result and the corresponding depth; and pre-buried sleeve valve pipe tracking grouting reinforcement is conducted on the building within the influence range of the foundation pit, so that reinforced soil bodies are connected into a whole within the plane and depth range. The problem of deformation of the water-rich stratum deep foundation pit support structure can be effectively solved, the surrounding environment risk before and after foundation pit excavation is reduced, and safe and smooth excavation of the deep foundation pit is achieved.
本发明公开了一种富水地层深基坑围护结构变形控制方法，涉及基坑施工技术领域，包括以下步骤：采用三轴搅拌桩对基坑整体进行分隔施工，并使基坑依照分隔结果按需降水；在车站周边设置回灌井，根据降水引起的坑外水位变化情况采取回灌措施；对基坑预设范围内的交通道路及地表进行地质雷达探测，根据雷达探测报告结果对地面不密实及脱空区域按照相应深度进行WSS注浆加固；对基坑影响范围内的建筑物进行预埋袖阀管跟踪注浆加固，以使被加固土体在平面和深度范围内连成整体。本发明可以有效地解决富水地层深基坑围护结构变形的问题，降低基坑开挖前后周边环境风险，实现深基坑安全顺利开挖。
Deformation control method for deep foundation pit support structure in water-rich stratum
一种富水地层深基坑围护结构变形控制方法
FAN WEIXING (author) / FAN RUOYI (author) / LIU JIANWEI (author) / SHI BO (author) / WU JINCHENG (author) / HOU LIANG (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Water-rich stratum super-long deep foundation pit deformation control method
| European Patent Office | 2023
Construction method of water-rich alluvial stratum deep foundation pit support structure
| European Patent Office | 2022
Water-rich stratum foundation pit seepage deformation risk prediction method
| European Patent Office | 2024
| European Patent Office | 2023
Reinforcing waterproof structure for deep foundation pit in water-rich stratum
| European Patent Office | 2024