三轴水泥土搅拌桩止水帷幕与锚索钻杆施工组合应用技术

CONSTRUCTION TECHNOLOGY ON COMBINED APPLICATION OF TRIAXIAL CEMENT-SOIL AGITATING PILE WATER-STOP CURTAIN AND ANCHOR DRILLING RODS

针对拟建场地地质条件较差,尤其是场地内分布有多层地下水和厚层粘性土层(多为粉质),并存在换填地基的基坑支护与降水工程。采用了一种三轴水泥土搅拌桩止水帷幕与锚索钻杆施工组合运用技术,消除了地质原因带来的对基坑支护与降水的不利影响,保证安全,为后续施工提供便利,对同类型地质条件下的基坑支护与降水工程有借鉴意义。

In light of such circumstances as poor geological conditions in the proposed site,especially the multilayer groundwater and thick clay layer distributed throughout the site,and the existence of foundation pit support and dewatering projects for replacing the foundation,a conjunctively construction technology applying triaxial cement-soil agitating pile water-stop curtain and anchor drilling rods is adopted.This technology can eliminate the adverse impact of geological factors on the foundation pit support and dewatering projects,so as to ensure safety and facilitate the subsequent construction,which provides a reference for other foundation pit support and dewatering projects with similar geological conditions.