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A.爆扩桩试验青海某厂处于湿陷性黄土地区,厂区大部份是Ⅱ级非自重湿陷,总图设计未做台阶,而且部份厂区大量填土,有的填土深达7米多,填土质量不够理想,干容重1.2～1.5之间,且不均匀。于是经过建设单位,设计单位与我公司二队三方讨论提出爆扩桩方案,并成立三结合试验小组,进行爆扩桩现场试验工作,自七○年七月开始。
A. Explosion-expanded pile test A plant in Qinghai Province is located in the collapsible loess area. Most of the plant area is Class II non-self-weighted collapsible, and the general map design is not made of steps. In addition, some plant sites are filled with plenty of soil, and some of them fill up to a depth of 7 tons. Mido, the quality of the fill is not ideal, dry weight between 1.2 to 1.5, and uneven. So after the construction unit, the design unit and the second team of our company discussed and proposed the explosion-expanding pile program, and set up a three-combination experimental team to conduct blasting and expanding the field test work, since July of the year.