西南山区管道某典型滑坡变形演化研究

Study on the Typical Landslide Deformation and Evolution of Pipeline in Southwestern Mountainous Area

长输管道经常通过地貌条件复杂、地质灾害频发的地区。为降低地质灾害对油气管道安全运行带来的威胁,对管道地质灾害的变形演化进行研究十分重要。西南山区管道某典型滑坡,因滑坡体后缘弃渣加载,在降雨条件下诱发产生滑坡,对管道形成占压,威胁管道安全运行。如滑坡发生二次滑动,管道可能存在受剪切破坏的风险。通过收集整理滑坡区地形地貌、地层岩性及地质构造等相关基础资料,对滑坡进行专业监测,分析滑坡变形演化规律,得到滑坡的主要影响因素和变形机制,并预测其变形演化趋势,研究结果为滑坡防治及管道保护提供了相关的参考和依据。

Long-distance pipelines often pass through areas with complex geomorphological conditions and frequent geological hazards.In order to reduce the threat of geological hazards to the safe operation of pipelines,it is very important to study the deformation and evolution of pipeline geological hazards in time.One typical pipeline landslide in the southwest mountainous area is caused by the slag loading on the back edge of the landslide under the circumstance of rainfall,which creates an occupation and poses a threat to the safe operation of pipeline.If the landslide occurs again,the pipeline may have the risk of suffering shear failure.Through collecting the related basic data of the landslide area including topography,lithology and geological structure,a professional monitoring of landslide is carried out and the evolution rule of landslide deformation is analyzed.The main influencing factors and deformation mechanism of the landslide are obtained,and the deformation evolution trend is predicted.The research results provide relevant references for landslide prevention and pipeline protection.