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近年来,我国常用的基坑支护形式有水泥土搅拌桩、土钉支护、锚杆支护、支护墙体、复合型土钉支护以及排桩墙支护体系等。从基坑支护方面来看,每一种支护结构都不是万能的,各有其适用范围和局限性。基于基坑工程的区域性、综合性和个性的特点,结合邯郸市地层以第四纪新近沉积土、一般沉积土为主,而且地下水位埋深较浅的地质条件,提出了适用于邯郸市的基坑支护形式主要有土钉墙、复合土钉墙和“排桩+锚杆+止水帷幕”围护结构体系,以期为邯郸市及与之有相似情况的地区在基坑支护选型方面提供借鉴。
In recent years, the commonly used form of foundation pit support in our country are cement-soil mixing piles, soil nailing support, rock bolt support and support wall, composite soil nailing support and row piles wall support system. From the pit support point of view, each support structure is not a panacea, each with its scope and limitations. Based on the regional, comprehensive and individual characteristics of foundation pit engineering, combined with the geological conditions in Handan city that the Quaternary newly deposited soil and the general sedimentary soil are dominated, and the groundwater level is shallow, The main forms of foundation pit support are soil nailing wall, composite soil nailing wall and “piled piles + anchor rod + water stopping curtain ” retaining structure system, with a view to Handan City and similar areas in the foundation pit Support selection to provide reference.