摘要
针对施工现场旋挖桩数量多、工作面大、工期紧、场平同场作业甚至是交叉施工等难题,结合贵安龙山工业园项目现场实际情况,通过现场试验,利用场地土资源优势,将现场的黏性土回填至易塌孔的回填分散土石区孔内,并采用旋挖钻二次钻孔挤压密实形成黏性护壁结构,使孔壁自身结构稳定,避免了塌孔。该方法降低了施工成本,提高了施工效率。
According to many problems,such as the number of rotary digging piles in the construction site,the large working face,the tight schedule,the flat field operation and even the cross construction,taking Guian Longshan industrial park for example,by testing on site,with the advantage of site soil resources,the on-site cohesive soil is backfilled into the hole of the backfilled and dispersive soil and rock area with collapsible holes,and the two ways of drilling are used to compact the cohesive wall structure,so that the structure of the hole wall is stable,and the collapse hole is avoided. This method reduces the construction cost and improves the construction efficiency.
出处
《施工技术》
CAS
北大核心
2017年第S2期182-185,共4页
Construction Technology
关键词
回填区
旋挖钻
成孔
施工技术
backfill area
rotary drill
hole
construction
