【作者】 韦勇生； 何志勇； 韦恒敏； 孙学毅；

【Author】 Wei Yongsheng;He Zhiyong;Wei Hengmin;Sun Xueyi Liuzhou OVM Engineering Company,Liuzhou 545000 Administration department of Guangxi Nanning expressway,Nanning city,540000 Administration department of Guangxi Guiliu expressway,Liuzhou city,54000

【机构】 柳州欧维姆工程有限公司； 广西南宁高速公路管理处； 广西桂柳高速公路管理处；

【摘要】 文中首先分析柳南高速公路K727+900段上行线路堤边坡不稳是水的作用使边坡土体沿层面产生滑动。同时由于水的作用引起路基填土软化沉陷导致路基下沉、路肩外移、路面开裂。基于上述分析本文提出采用压力注浆技术加固路堤边坡下部土体、加固路基。采用压力分散型锚索和钢管砼桩组合进一步加固路堤边坡中上部土体。工程实践表明,加固后该段边坡、路基达到稳定状态得以正常营运。更多还原

【Abstract】 In this paper the reason of the failure of the fill slope in Liunan expressway within section K727+900 isfirstly studied. The results show that it is the water that induce the fill slope failure, the sinkage of the roadbed, thetranslation of road border and pavement crack. Based on the reason of the failure of the roadbed and the slope,grouting technology is applied to reinforce the slope and the roadbed. Pressure diverging anchoring cable and steelpipe pile are also used to reinforce the upper and the middle part of the fill slope. Engineering practice shows thatthe fill slope and roadbed are steady after adopting engineering measures.更多还原