A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for dewatering of high-permeability ultra-deep foundation pit in water-rich sandy gravel stratum
The invention belongs to the technical field of dewatering of ultra-deep foundation pits, and discloses a construction method for dewatering of a high-permeability ultra-deep foundation pit in a water-rich sandy gravel stratum. The construction method comprises the steps that on-the-spot investigation is carried out to find out geological conditions and hydrologic parameters of the field; a dewatering well is designed based on the geological conditions and hydrologic parameters, and parameters and well location data are acquired; field surveying and setting-out are conducted to determine the location of the well, and a well mouth pipe is embedded in a location point; a hole is drilled in the location point by means of a drilling machine, and the wall of the hole is reinforced in the drilling process; after the hole is drilled to a design depth, the whole is cleaned, a well pipe is placed into the hole, and the space between the well pipe and the wall of the hole is filled with filter materials; a sewage pump is placed to the bottom of the well and is washed repeatedly; a water pump and a pipeline system are mounted, and pumping dewatering is conducted; and after usage of the dewatering well is completed, the water pump and the pipeline system are disassembled, and backfilling and tampering are conducted. According to the construction method, the dewatering well is reasonably planned according to the actual construction condition and can accommodate underground gushing water to keep the interior of the ultra-deep foundation pit dry, so that a deep foundation pit structure can be constructed smoothly.
本发明属于超深基坑降水技术领域，公开了一种富水砂卵石地层高渗透超深基坑降水施工方法，包括现场勘察，查明现场的地质条件和水文参数；基于地质条件和水文参数设计降水井，获得降水井参数和井位数据；现场测量放样定井位，并在井位点处埋设护口管；利用钻机在井位点进行钻孔，并在钻孔过程中对孔壁进行加固；钻孔至设计深度后，清孔、下井管，并在井管与孔壁之间填充过滤料；将污水泵放入井底对其进行反复抽洗；安装水泵及管路系统，进行抽降水；降水井完成使用目的后，拆卸水泵及管路系统，并进行回填捣实。该方法根据实际施工情况合理规划降水井，能够容纳地下涌水，使得超深基坑内保持干燥，顺利进行深基坑结构施工。
Construction method for dewatering of high-permeability ultra-deep foundation pit in water-rich sandy gravel stratum
The invention belongs to the technical field of dewatering of ultra-deep foundation pits, and discloses a construction method for dewatering of a high-permeability ultra-deep foundation pit in a water-rich sandy gravel stratum. The construction method comprises the steps that on-the-spot investigation is carried out to find out geological conditions and hydrologic parameters of the field; a dewatering well is designed based on the geological conditions and hydrologic parameters, and parameters and well location data are acquired; field surveying and setting-out are conducted to determine the location of the well, and a well mouth pipe is embedded in a location point; a hole is drilled in the location point by means of a drilling machine, and the wall of the hole is reinforced in the drilling process; after the hole is drilled to a design depth, the whole is cleaned, a well pipe is placed into the hole, and the space between the well pipe and the wall of the hole is filled with filter materials; a sewage pump is placed to the bottom of the well and is washed repeatedly; a water pump and a pipeline system are mounted, and pumping dewatering is conducted; and after usage of the dewatering well is completed, the water pump and the pipeline system are disassembled, and backfilling and tampering are conducted. According to the construction method, the dewatering well is reasonably planned according to the actual construction condition and can accommodate underground gushing water to keep the interior of the ultra-deep foundation pit dry, so that a deep foundation pit structure can be constructed smoothly.
本发明属于超深基坑降水技术领域，公开了一种富水砂卵石地层高渗透超深基坑降水施工方法，包括现场勘察，查明现场的地质条件和水文参数；基于地质条件和水文参数设计降水井，获得降水井参数和井位数据；现场测量放样定井位，并在井位点处埋设护口管；利用钻机在井位点进行钻孔，并在钻孔过程中对孔壁进行加固；钻孔至设计深度后，清孔、下井管，并在井管与孔壁之间填充过滤料；将污水泵放入井底对其进行反复抽洗；安装水泵及管路系统，进行抽降水；降水井完成使用目的后，拆卸水泵及管路系统，并进行回填捣实。该方法根据实际施工情况合理规划降水井，能够容纳地下涌水，使得超深基坑内保持干燥，顺利进行深基坑结构施工。
Construction method for dewatering of high-permeability ultra-deep foundation pit in water-rich sandy gravel stratum
一种富水砂卵石地层高渗透超深基坑降水施工方法
ZHANG BO (author) / ZHANG SHUXIANG (author) / SUN HEMING (author) / FAN DEDONG (author) / HU LINHAO (author) / QIU YI (author)
2020-05-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2023
Construction method of sandy gravel water-rich stratum foundation pit
| European Patent Office | 2023
Sandy gravel stratum deep foundation pit dewatering intelligent control system and method
| European Patent Office | 2021
Water-rich stratum foundation pit dewatering system and construction method
| European Patent Office | 2023
| European Patent Office | 2021