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A platform for research: civil engineering, architecture and urbanism
Precipitation structure and precipitation method for deep foundation pit penetrating through pebble mudstone interface
The invention discloses a precipitation structure and precipitation method for a deep foundation pit penetrating through a pebble mudstone interface, the precipitation structure comprises inclined shafts and horizontal water drain pipes, the horizontal water drain pipes are arranged at intervals in the circumferential direction of the foundation pit, the inclined shafts are arranged in a water storage area of the foundation pit, and the horizontal water drain pipes are arranged at a stratum boundary. A pebble bed is arranged above the stratum boundary, a mudstone layer is arranged below the stratum boundary, the end, located on the inner wall of the foundation pit, of the inclined shaft is located above the horizontal water drainage pipe, and the other end of the inclined shaft extends into the mudstone layer. The structure can effectively solve the problem that underground water at the interface of sandy cobble and mudstone is difficult to discharge, the problems that the stability of a foundation pit is suddenly reduced and the ground of a building is settled due to untimely dewatering of the foundation pit are avoided, and the underground water level in the foundation pit can be timely reduced, so that a soil layer is compressed and consolidated to improve the self-stabilization capability and the bearing capacity; and the problems of ground differential settlement and foundation pit side wall interface water seepage caused by improper precipitation at the stratum interface are prevented.
本发明公开了一种穿越卵石泥岩交界面的深基坑的降水结构及降水方法，降水结构包含斜井和水平泄水管，所述水平泄水管沿基坑周向间隔设置，所述基坑的存水区设有所述斜井，所述水平泄水管设于地层分界线处，所述地层分界线上方为卵石层、下方为泥岩层，所述斜井位于所述基坑内壁一端位于所述水平泄水管上方，所述斜井的另一端伸入泥岩层。采用本结构能有效解决砂卵石及泥岩交界面处的地下水排出困难，避免基坑降水不及时引发基坑稳定性骤降及建筑物地面沉降的问题，能及时降低基坑中的地下水位，使得土层压缩固结进而提高其自稳能力和承载力，防止地层交界面处降水不当发生地面不均匀沉降及基坑侧壁界面水渗出问题。
Precipitation structure and precipitation method for deep foundation pit penetrating through pebble mudstone interface
The invention discloses a precipitation structure and precipitation method for a deep foundation pit penetrating through a pebble mudstone interface, the precipitation structure comprises inclined shafts and horizontal water drain pipes, the horizontal water drain pipes are arranged at intervals in the circumferential direction of the foundation pit, the inclined shafts are arranged in a water storage area of the foundation pit, and the horizontal water drain pipes are arranged at a stratum boundary. A pebble bed is arranged above the stratum boundary, a mudstone layer is arranged below the stratum boundary, the end, located on the inner wall of the foundation pit, of the inclined shaft is located above the horizontal water drainage pipe, and the other end of the inclined shaft extends into the mudstone layer. The structure can effectively solve the problem that underground water at the interface of sandy cobble and mudstone is difficult to discharge, the problems that the stability of a foundation pit is suddenly reduced and the ground of a building is settled due to untimely dewatering of the foundation pit are avoided, and the underground water level in the foundation pit can be timely reduced, so that a soil layer is compressed and consolidated to improve the self-stabilization capability and the bearing capacity; and the problems of ground differential settlement and foundation pit side wall interface water seepage caused by improper precipitation at the stratum interface are prevented.
本发明公开了一种穿越卵石泥岩交界面的深基坑的降水结构及降水方法，降水结构包含斜井和水平泄水管，所述水平泄水管沿基坑周向间隔设置，所述基坑的存水区设有所述斜井，所述水平泄水管设于地层分界线处，所述地层分界线上方为卵石层、下方为泥岩层，所述斜井位于所述基坑内壁一端位于所述水平泄水管上方，所述斜井的另一端伸入泥岩层。采用本结构能有效解决砂卵石及泥岩交界面处的地下水排出困难，避免基坑降水不及时引发基坑稳定性骤降及建筑物地面沉降的问题，能及时降低基坑中的地下水位，使得土层压缩固结进而提高其自稳能力和承载力，防止地层交界面处降水不当发生地面不均匀沉降及基坑侧壁界面水渗出问题。
Precipitation structure and precipitation method for deep foundation pit penetrating through pebble mudstone interface
一种穿越卵石泥岩交界面的深基坑的降水结构及降水方法
ZHAO WEIXING (author) / LI XUE (author) / WANG JINGXIANG (author) / LI SHANGMING (author) / HUANG GUANGKAI (author) / LIU JINQIAO (author) / XIE BINGQIU (author)
2023-04-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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