湿陷性黄土场地换填垫层地基处理技术应用研究  

Application of replacement layer of compacted fill for collapsible loess treatment

作　　者：张勇[1] 纪成亮[1] 孟志浩 Zhang Yong;Ji Chengliang;Meng Zhihao(Shandong Electric Power Engineering Consulting Institute Corp.,Jinan 250100,China)

机构地区：[1]山东电力工程咨询院有限公司

出　　处：《山西建筑》2019年第21期78-80,共3页Shanxi Architecture

摘　　要：为确定青海西宁某电厂自重湿陷性黄土场地的地基处理方案,进行了换填垫层现场原体试验,研究分析了换填材料、施工工艺、施工参数及施工检测方案,并通过平板载荷试验对换填后的地基承载力和变形模量进行了测试。测试结果表明:以天然级配的砂卵石作为换填材料进行换填垫层的处理方案可满足要求,可作为该工程重要建筑物的地基处理方案。In order to determine the ground treatment scheme of a powr plant in collapsible loess site,in-site tests of replacement layer of compacted fill were carried out. Backfill material,construction technology and detection scheme were analyzed. PLT were carried out to detect the bearing capacity and deformation modulus of subsoil after treatment. The result shows that: replacement layer of compacted fill with natural graded sand and gravel meet the design requirement,could be adopt as the foundation treatment scheme of the main building in this power plant.

关 键 词：湿陷性黄土 换填垫层 地基处理 原体试验 

分 类 号：TU444[建筑科学—岩土工程]