膨胀土地区路堤开裂原因分析及处治技术研究  

Expansive Soil Embankment Cracking Analysis and Treatment Technology

作　　者：唐咸远[1] 高向东 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006 [2]中交第一公路工程局有限公司第一工程公司,北京100024

出　　处：《公路工程》2014年第5期12-15,共4页Highway Engineering

基　　金：国家自然科学基金资助项目(51009030)

摘　　要：填筑在膨胀土地基上的路堤出现开裂及坡体滑动是目前公路建设中最为严重的工程病害之一。以广西一膨胀土地基路堤出现开裂等病害处治为对象,从膨胀土路堤的工程地质及土性特征入手,分析边坡破坏的原因及特点,提出了"注浆微型钢管桩+树根桩+路面注浆+深孔排水"的处治方案,并介绍了其设计及施工要点,实施结果表明治理达到了预期的目的。The cracking and sliding of embankment built on expansive soil ground are currently the most serious diseases during highway construction. Based on the treatment of expansive soil embankment cracking disease in Guangxi,the causes and characteristics of slope failure were analyzed from expansive soil embankment engineering geology and soil property characteristics. The treatment programs of ＂microsteel tube pile grouting ＋ root piles pavement grouting ＋ deep drainage＂were proposed and its design and construction points were introduced. The implementation results show that the desired purpose was achieved.

关 键 词：膨胀土 路堤 注浆 微型钢管桩 树根桩 

分 类 号：U416.12[交通运输工程—道路与铁道工程]