In the construction process of foundation pit supporting engineering, the construction unit of foundation pit supporting engineering should consider the treatment of groundwater at the same time, that is, how to control groundwater, which is an important content in the design and construction of foundation pit engineering. Especially in sandy soil and silt soil, when the water is shallow and abundant, sometimes there is confined water layer in the lower aquifer, it becomes an important factor affecting the stability of foundation pit.
Foundation pit supporting In the construction process of foundation pit supporting engineering, the construction unit often meets the flow sand, pit wall collapse and causes the accident, which causes the surrounding underground pipelines and buildings to different degrees of damage.
When choosing the type of foundation pit, it is necessary to consider the treatment method of groundwater at the same time, that is, how to control groundwater, isFoundation pit engineeringAn important content in the design and construction. Especially in sandy soil and silt soil, when the water is shallow and abundant, sometimes there is confined water layer in the lower aquifer, it becomes an important factor affecting the stability of foundation pit.
The excavation of foundation pit in the area with high groundwater level requires dewatering, and pumping groundwater for a long time will cause the surrounding land subsidence. Therefore, when the environmental conditions do not allow dewatering, it is necessary to set a water stop curtain around the foundation pit to cut off the connection between the aquifer inside and outside the pit, so as to avoid the impact on the environment caused by the dewatering in the pit. Water stop curtain can be used underground diaphragm wall, cement soil mixing pile curtain wall or rotary jet grouting pile water stop curtain and other methods.
In the design of foundation pit, the seepage stability of foundation pit should be checked, which is also an important content of groundwater control. It is necessary to prevent the influence of flowing sand, flowing soil, piping and confined water layer on the foundation pit bottom.
Shanghai Qiangqiang Foundation Engineering Co., LTD. 's business covers foundation pit engineering, pile foundation engineering, land and waterFoundation treatment, slope treatment and other engineering fields. around" Excellent technology, reliable process, fast construction "technical requirements, is to provide customers with land, water foundation engineering technical consultation, construction services and other comprehensive solutions of the entity enterprise.Contact Number:400-100-2850
