低液限粉土路基填料施工技术研究.pdf

施工技术 2016年5月下 104 CONSTRUCTION TECHNOLOGY 第45卷第10期 D0I:10.7672/8js2016100104 低液限粉土路基填料施工技术研究 秦李林 (太原市住房和城乡建设委员会，山西太原030009) [摘要]低液限粉土具有液限低、塑性指数小、黏粒含量少、强度和水稳定性差等工程特性，施工中易被压碎，扬尘 大，不易成型，碾压时易产生叠瓦状推移和分层现象.在广源高速公路工程建设中，通过对含水量、松铺厚度、碾压 工艺等参数对压实度的影响研究，形成了低液限粉土路基施工关键技术，经实践证明，低液限粉土作为高速公路路 堤填料是完全可行的，能够满足高速公路路基施工质量标准. [关键词]公路工程；高速公路；低液限粉土；施工技术；研究 [中图分类号]U416.1 [文献标识码]A [文章编号]1002-8498(2016)10-0104-04 Study on Construction Technology of Low Liquid Limit Silt Subgrade Filling Qin Lilin (Taiyuan Housing and Urban and Rural Construction Committee Taiyuan Shanxi 030009 China) Abstract:Low liquid limit silt has characteristics of low liquid limit small plasticity index low clay content bad strength and water stability and poor engineering properties.It is easy to be crushed in construction with big dust and hard to be shaped.It is also easy to produce the phenomenon of tile load and delimitation during rolling.In Guangyuan expressway engineering construction through study on the effect of moisture loose paving thickness and rolling process parameters to degree of paction the key construction technologies of the low liquid limit silt subgrade are put forward.Engineering practice proves that low liquid limit silt as embankment is feasible which can meet the quality standard of highway roadbed construction. Key words:road construction;expressway;low liquid limit silt;construction;study 0引言 施工的角度.通过分析低液限粉土工程特性，将试 广灵至浑源高速公路第六合同段位于山西省验研究与工程实践相结合，分析含水量、松铺厚度、 大同市广灵县内，根据自然条件，该地区土质属低压实遍数等参数对压实度的影响，探讨各...