南方山区高速公路高填陡坡路基滑塌事故分析与加固处治

Analysis and Strengthening Treatment of Subgrade Landslide Accident on High Fill Steep Slope of Expressway in Southern Mountainous Area

针对南方山区PX高速公路高填陡坡路基出现的滑塌事故,采用现场调查、理论分析与计算的方法,查明了滑塌原因,并针对性地采取了反压护道、临时钢板桩抗滑、钢花管注浆等处治措施,取得了短时间内控制路基滑塌险情并保证了路基长期稳定性的加固效果,可为类似工程滑塌事故处理提供借鉴。

In view of the slippery accident occurred in the high fill and steep slope embankment of PX Expressway in the southern mountainous area,the reasons for the collapse have been found out by field investigation,theoretical analysis and calculation,and the measures of anti-pressure protection,anti-sliding of temporary steel sheet pile and steel tube grouting have been taken to control the subgrade collapse risk in a short time,which could also ensure the reinforcing effect of roadbed long-term stability and provide reference for similar projects.