灰土挤密桩法与砂石桩法于黄土填方地基处理中的应用研究  

Study on application of lime-soil compaction pile and sand-gravel pile in treatment of loess filling foundation

作　　者：岳钰杰 

机构地区：[1]甘肃西苑勘察规划设计有限公司,甘肃庆阳745000

出　　处：《中国建材科技》2019年第2期116-119,共4页China Building Materials Science & Technology

摘　　要：黄土填方地区的利用一直以来颇受争议。以实际调查案例为基础,分析了原始加固方案的弊端。分别模拟分析了灰土挤密桩与砂石桩加固方案,从沉降趋势、应变分布、超静孔隙水压力分布、渗流量等几个方面系统分析了两个方案的加固效果。分析表明,两种加固方案均可满足沉降要求,砂石桩法排水更通畅,固结更迅速,工程实践中具体可根据地基内含水情形选用。The use of loess fill areas has been controversial.The disadvantages of the original reinforcement scheme are analyzed based on the actual investigation case. The lime-soil compacted piles and sand-gravel piles were simulated respectively.The reinforcement effects of the two schemes were systematically analyzed from several aspects such as settlement trend, strain distribution, excess pore water pressure distribution and seepage flow. The result shows that both kinds of schemes can meet the settlement requirements, the sand-gravel pile has faster drainage rate,the consolidation is more rapid.The engineering practice can be selected according to the water content in the foundation.

关 键 词：黄土填方 地基处理 灰土挤密桩 砂石桩 

分 类 号：TU753.3[建筑科学—建筑技术科学]