西吉县黄土沟壑区湿软地基处理技术研究  

Research on Wet and Soft Foundation Treatment Technology in the Loess Gully Area of Xiji County

作　　者：刘安宁 Liu Anning(Ningxia Highway Survey and Design Institute Co.,Ltd.,Yinchuan,China)

机构地区：[1]宁夏公路勘察设计院有限责任公司,宁夏银川

出　　处：《科学技术创新》2023年第24期124-127,共4页Scientific and Technological Innovation

摘　　要：西吉县地区黄土疏松多孔,沟壑区孔隙比大,含水率高,黄土湿软,路基强度低、压缩性高且无湿陷性。本研究结合西会高速公路处置方案为实例,针对该区域湿软地基力学特性进行分析,研究抛石挤淤加换填及水泥挤密桩处理方案在该高速的应用,并通过有限元软件进行模拟,探究处理方案下不同因素对变形规律的影响,提出相应优化措施为同类地区未来湿软地基工程的处治提供借鉴。The loess in Xiji County is loose and porous,the pore ratio in the gully area is large,the water content is high,the loess is wet and soft,the roadbed strength is low,the compressibility is high and there is no wet sink.This paper combines the disposal scheme of Xihui Expressway as an example,analyses the mechanical characteristics of wet and soft foundation for this area,and studies the application of the treatment scheme of stone throwing and siltation plus replacement and cement squeeze pile in this expressway,and carries out simulation through finite element software to explore the influence of different factors on the deformation law under the treatment scheme,and proposes corresponding optimization measures to provide reference for the future treatment of wet and soft foundation projects in similar areas.

关 键 词：地基处理 西吉黄土 湿软路基 有限元模拟 固结分析 

分 类 号：TU444[建筑科学—岩土工程]