川藏高速公路高位堆积体病害分析与防治

Disease Analysis and Prevention of High Accumulation Body in Sichuan Tibet Expressway

依据川藏高速公路雅康段大仁烟堆积体病害治理,通过对坡体地质结构的研究,以及坡体自然状态和工程状态下的稳定性分析,对高位堆积体高边坡工程治理方案进行了分析与探讨,得出了结论:高位堆积体的稳定性评价既要重视自然状态下的稳定性,更要重视工程状态下的稳定性;高位堆积体潜在滑面的参数取值,应结合堆积体的成因、性质、地形地貌、稳定度的基础上综合确定;高位堆积体高边坡的防护应贯彻"固脚强腰"的加固理念,兼顾坡面、边坡和坡体的稳定性。

Taking the Darenyan accumulation body disease in the section of the Ya＇an to Kangding section of Sichuan Tibet expressway as an example,this paper analyzed the treatment plan of the high slope of high accumulation body. The conclusions are： the high pile body should focus on the pre reinforcement of the ＂key block gate＂for the foot of the slope; the parameter value of the potential sliding surface of the high pile body should be combined with the causes,properties,topography and stability of the accumulation body,and the protection of the high slope of the high pile body should carry out the strengthening concept of ＂solid foot and strong waist＂.