囊谦县香达镇格东涌社区西北侧滑坡成因机制及稳定性评价  

Formation Mechanism and Stability Evaluation of the Northwest Side Sliding Slope in Gedongyong Community,Xiangda Town,Nangqian County

作　　者：王红岩 张家好 胡世俊 Wang Hongyan;Zhang Jiahao;Hu Shijun(Qinghai China Coal Geological Engineering Co.,LTD.,Xining 810001,China)

机构地区：[1]青海中煤地质工程有限责任公司,西宁810001

出　　处：《青海科技》2023年第2期173-180,共8页Qinghai Science and Technology

摘　　要：青海省玉树藏族自治州囊谦县城区地处山间河谷地带,其南北两山地区是地质灾害的高易发区。随着城镇化进程的加快,建设用地短缺问题日益突出,在扩建过程中关于滑坡地质灾害的因素需要高度重视。为确保囊谦县香达镇格东涌社区的安全和工程治理提供设计依据,本文通过对社区西北侧滑坡地质条件及发育特征进行调查,分析滑坡的形成机制,并运用传递系数法进行滑坡稳定性评价,得出该滑坡在天然工况下处于基本稳定状态,暴雨及地震工况下处于不稳定状态。为保证社区居民生命财产及道路、输电线路安全,提出合理的工程治理方案措施,为防治工作提供依据。本文给出了采用抗滑桩板墙、削坡为主,辅以地表截排水工程、绿化等综合治理方案。The urban area of Nangqian County,Yushu Tibetan Autonomous Prefecture,Qinghai Province,is located in the intermountain valley region,and its North and South mountain areas are highly prone to geological disasters.With the acceleration of urbanization,the shortage of construction land is becoming increasingly prominent,and the factors related to landslide geological disasters in the expansion process need to be highly valued.In order to ensure the safety of Xiangda Town and provide reference for engineering design,based on the study of the geological conditions and development characteristics of the landslide on the northwest side of the Gedongyong Community Project in Xiangda Town,Nangqian County,this paper analyzes the formation mechanism of the landslide,and uses the transfer coefficient method to evaluate the stability of the landslide,indicating that the landslide is in an unstable basically stable state under natural conditions,and in an unstable state under rainstorm conditions.In order to ensure the safety of community residents’lives and property,roads,and power transmission lines,this paper proposes comprehensive treatment schemes such as using anti-slide piles and slope cutting,supplemented by surface and underground drainage works,and greening.

关 键 词：滑坡 成因机制 稳定性评价 

分 类 号：P642.22[天文地球—工程地质学]