摘要
岩溶地区地层复杂,旋挖钻孔灌注桩施工需要采用泥浆护壁。分析了膨润土泥浆的组成、物理特性、作用机理,通过工程施工实例,阐述了泥浆制备工艺流程和泥浆在旋挖钻孔灌注桩工艺中的应用效果。
The strata of karst area are complex,and the slurry is needed for wall protection during rotary-drilled cast-in-place pile construction. The composition,physical characteristics and function mechanism of the bentonite slurry are introduced. Through an example of engineering construction,the process flow of slurry preparation and application of slurry in the rotary-drilled cast-in-place pile technology are reviewed.
作者
刘城
陈俊华
左文贵
李烈见
王旭
Liu Cheng;Chen Junhua;Zuo Wengui;Li Liejian;Wang Xu(Hunan Foundation Corporation,Changsha 410083;School of Geosciences and Info-Physics,Central South University,Changsha 410083)
出处
《工程建设》
2019年第11期67-70,76,共5页
Engineering Construction
关键词
岩溶地区
旋挖钻孔灌注桩
泥浆护壁
施工工艺
karst area
rotary-drilled cast-in-place pile
slurry wall protection
construction process
