摘要
《建筑地基处理技术规范》(JGJ 79-2012)给出了含有折减系数λ和β的复合地基承载力计算公式,为了得到适用于本地区的λ和β的取值范围,为今后规范的修订提供参考依据,采用水泥搅拌桩对开封地区有代表性的软土地基进行加固处理,并分别进行了10组单桩和单桩复合地基的静载荷试验。通过对试验数据的分析和反算,对规范给出的承载力计算公式中折减系数λ和β的取值范围进行了修正。
Technical code for ground treatment of buildings （JGJ 79-2012）shows the calculation formula of compound foundation bearing capacity with reduction coefficient λ and β. In order to get the value ranges of λ and β which are suitable for this region and provide reference data for future code revision, it processes the reinforcement treatment of representative soft foundation in Kaifeng area by using cement mixing pile, and conducts 10 groups static load tests of single pile and single pile compound foundation.Through the analysis and inverse calculation of test data, it modifies the value ranges of the reduction coefficient λ and β of bearing capacity calculation formula was given by the code.
出处
《黄河水利职业技术学院学报》
2016年第1期28-31,共4页
Journal of Yellow River Conservancy Technical Institute
基金
黄河水利职业技术学院科技项目:水泥搅拌桩复合地基承载特性研究(2015KXJS001)
关键词
水泥搅拌桩
复合地基
承载力
静载荷试验
折减系数
Cement-mixed piles
compound foundation
bearing capacity
static load test
reduction coefficient
