摘要
在软土地区(地下水位以下的黏性土、粉土、沙土、填土、碎石土及风化岩层),钻孔灌注桩的成孔过程都要采用泥浆护壁。文章对其成桩过程中两种泥浆循环方式对孔径的影响进行了研究,简介泥浆护壁钻孔灌注桩施工工艺、施工特点及适用范围、操作要点及注意事项、常见问题及应对对策及应用实例分析。
In soft soil areas(viscous soil,silt,sand,fill soil,gravel soil and weathered rock strata below the water table),the drilling process of cast-in-situ piles should adopt mud wall protection.In this review,the influence of two mud circulation modes on pore diameter in the piling process was studied,this paper introduces the construction technology,construction characteristics,application scope,operation points and matters needing attention,common problems,countermeasures and application examples.
作者
王震
彭超
WANG Zhen;PENG Chao(Shandong Zhengyuan Construction Engineering Co.,Ltd.,Jinan Shandong 250101,China)
出处
《粘接》
CAS
2020年第1期115-119,共5页
Adhesion
关键词
泥浆护壁
正反循环
钻孔灌注桩
成孔
mud wall protection
positive and negative cycles
bored pile
into a hole
