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1.引言软土是软弱土层的简称,指小于0.1mm的颗粒占土样总重50%以上的细颗粒土沉积而形成的土层。传统的软基处理方法有:排水砂井法、砂垫层法、夯实碾压法、排水预压固结法、深层水泥搅拌法等。碎石桩基础法是排水砂井和强夯两种方法各取其优点而形成的一种软基处理的新方法。它克服了排水砂井需要有相当长的排水固结时间,又祢补了强夯法由于软土层较厚而出现的橡皮土现象,不但可以明显的缩短工程
1. INTRODUCTION Soft soil is short for soft soil, meaning soil less than 0.1mm accounts for more than 50% of the total weight of soil. Traditional soft foundation treatment methods are: drainage sand well method, sand cushion method, ramming compaction method, drainage pre-consolidation method, deep cement mixing method. Gravel pile foundation method is a new method of soft foundation treatment formed by taking advantage of two methods of drainage sand well and dynamic compaction. It overcomes the drainage sand wells need to have a long drainage consolidation time, and you make up for the strong ramming method due to the soft soil layer appears thick rubber phenomenon, not only can significantly shorten the project