永蓝高速公路K18+000～K18+350滑坡成因分析与防治措施研究  

Study on genesis and prevention measures for a landslide on Yongzhou-Lanshan expressway in Hunan province

作　　者：李朋丽[1] 林凯明 李家春[1] 马保成[1] 彭燃[1] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]汕头市达濠市政建设有限公司,广东汕头515041

出　　处：《中国地质灾害与防治学报》2010年第1期19-23,共5页The Chinese Journal of Geological Hazard and Control

基　　金：西部交通建设科技项目(200631800007)

摘　　要：边(滑)坡灾害的预防和治理在高速公路建设运营中占重要地位。通过对永(州)蓝(山)高速公路K18+000～K18+350白泥坳隧道进口滑坡(简称白泥坳滑坡)的现场调查,从地层岩性、地形地貌、区域构造、气象水文与地下水及施工工序四个方面对滑坡的成因进行了详细研究。根据滑坡的地质构造及变形特征,结合钻孔及工程实地考察资料,分析了滑坡滑动面的可能位置。最后提出了以抗滑桩为主、辅以地表及地下排水设施的综合治理方案,以此达到加固正在发生变形的边坡、防止施工活动对坡体产生扰动导致古滑坡复活的目的。并结合工程实际,提出了抗滑桩及排水设施的施工工艺及流程,对施工过程中的注意事项作了详细说明,为施工提供了可靠依据。The landslide prevention and control was important to the operation of an expressway.Taking the landslide at the entrance of BAINI＇AO Tunnel between K18 ＋ 000 and K18 ＋ 350 on Yongzhou-Lanshan Expressway in Hunan Province（BAINI＇AO landslide） as a case and based on the on-site investigation,the paper studied the origin of the landslide in the four aspects of status lithology,topography and landforms,regional tectonics,hydrology and geohydrology,as well as construction procedure.According to geological tectonics and deformation of the landslide,as well as the drilling data and field work,the potential sliding surfaces of the landslide were analyzed.Finally,a comprehensive treatment plan was proposed,which took anti-slide piles as the main measure,and drainage facilities as the assistant measure,to strengthen the deforming slope and prevent an ancient landslide from reacting by construction activities.Based on the engineering practice,construction procedures of anti-slide piles and drainage facilities were proposed,which specified the things that should be paid attention to.

关 键 词：永州-(蓝)山 高速公路 地质灾害 白泥坳滑坡 成因 防治措施 湖南省 

分 类 号：U416.14[交通运输工程—道路与铁道工程]