某铁路加宽路基滑坡病害成因及治理措施  

Causes and treatment measures of landslide disease in a railway widened roadbed

作　　者：汪平 剡理祯 王维权 范璐璐 张祥 Wang Ping;Yan Lizhen;Wang Weiquan;Fan Lulu;Zhang Xiang(Xi’an Wuhe Construction Technology Consulting Co.,Ltd.,Xi’an Shaanxi 710055,China;Huaqing College,Xi’an University of Architecture and Technology,Xi’an Shaanxi 710043,China;Northwest Research Institute Co.,Ltd.of CREC,Lanzhou Gansu 730000,China)

机构地区：[1]西安五和建筑科技咨询有限公司,陕西西安710055 [2]西安建筑科技大学华清学院,陕西西安710043 [3]中铁西北科学研究院有限公司,甘肃兰州730000

出　　处：《山西建筑》2024年第12期123-126,共4页Shanxi Architecture

基　　金：陕西省教学改革项目:新工科背景下土木类专业实验教学体系构建与实践研究(SJG202401003)。

摘　　要：以陕西北部某铁路加宽路基滑坡治理工程为例,通过现场勘查、数值模拟、经验分析等手段,对该典型路基滑坡的形成机制和稳定性进行分析并提出治理措施。结果表明:新老路基界面抗滑移措施较弱,且路基填筑质量欠佳,新线路基完工后发生了较大的工后沉降是诱发该病害的主要原因;异常的集中强降水是滑坡病害的诱发因素;坡脚排水系统的不完善,是滑坡发生的重要原因。在滑坡成因分析和数值模拟的基础上提出该路基滑坡的治理方案,通过抗滑桩结合完善排水措施能够有效地对路基滑坡进行根治。结果表明治理效果良好。Taking a railway widened roadbed landslide treatment project in northern Shaanxi as an example,the formation mechanism and stability of the typical roadbed landslide were analyzed by means of field investigation,numerical simulation and empirical analysis,and the treatment measures were put forward.The results show that the interface anti-slip measures of the new and old subgrade are weak,the subgrade filling quality is not good,and the post-construction settlement of the new subgrade after completion is the main cause of the disease.Abnormal concentrated heavy rainfall is the inducing factor of landslide disease.The imperfect drainage system of slope foot is an important cause of landslide.On the basis of analysis of the cause of landslide and numerical simulation,the treatment scheme of the subgrade landslide is put forward.The anti-slide pile combined with perfect drainage measures can effectively cure the subgrade landslide.The results show that the treatment effect is good.

关 键 词：陕西北部 铁路加宽路基 滑坡 抗滑桩 

分 类 号：TU253.8[建筑科学—建筑设计及理论]