我公司先后在西安市冶金局家属宿舍两幢大楼工程、省钢厂300/400轧钢厂40米烟囱基础的设计、施工中,采用爆破挤密灰土桩处理杂填土、Ⅲ级非自重湿陷黄土地基,基本上克服了使用大开挖换土和灰土井的方法中占用劳力多、工期长、没有地方堆土的缺点,摆脱了柴油打桩机一时无法解决的困难。在不到两个月的时间里,很快就完成了两幢五层大楼和一座烟囱基础的地基处理 Our company successively used blasting compacted ash piles to handle miscellaneous fill and Class III non-self-weighted collapsibles in the design and construction of the 40-meter chimney foundation of the 300-400 steel mill in the Xi’an Metallurgical Bureau. The loess foundation basically overcomes the shortcomings of large labor, long construction period, and no place heaping in the method of using large excavation soil change and lime-soil wells, and is free from the difficulties that the diesel pile driver cannot solve at one time. In less than two months, the foundation treatment of two five-storey buildings and one chimney foundation was soon completed.