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爆扩桩基在1962年由建工部六局在冻土地区试用,对解决冻土基础施工,取得了卓越成效。虽然有些省市都在试用这种新技术,但是对它的基本性质还了解得很不够。北京于1964年冬开始进行试验,今年秋已在左家庄采用了这种桩基,也进行了一系列的试验,以期为设计和施工提供可靠数据,促进这项新技术的发展,这些试验还仅是一个开始,还在继续进行。上述试验第一阶段的试验项目包括:(1)爆扩体的成型分类;(2)相邻桩的爆扩影响;(3)炸
The explosion-expanded pile foundation was tested by the six bureaus of the Ministry of Construction and Industry in the permafrost region in 1962 and has achieved remarkable results in solving the foundation construction of frozen soil. Although some provinces and cities are trying out this new technology, they still do not understand enough about its basic nature. Beijing began testing in the winter of 1964. This year, the pile foundation was adopted in Zuojiazhuang and a series of tests were conducted to provide reliable data for design and construction and to promote the development of this new technology. It is still just a beginning and it is still going on. The test items for the first phase of the above-mentioned tests include: (1) Forming classification of explosive bodies; (2) Explosion and expansion effects of adjacent piles; (3) Explosion