摘要
在对滑坡区地质环境条件、滑坡变形特征开展详细工程地质调查的基础上,结合工程钻探验证查明了滑坡基本特征。通过滑坡成因机制的分析研究,认为千枚岩滑坡变形破坏机制主要为陡倾结构面控制作用下的滑移—拉裂,属中型牵引式岩质滑坡。在此基础上,采用定性分析结合定量计算对滑坡堆积体的稳定性进行了综合分析评价,稳定性评价结果表明滑坡堆积体稳定性较差,安全储备严重不足,严重威胁公路的安全运营,为此提出了经济合理的滑坡治理措施建议,以保证公路的安全运营。
Basic landslide characteristics are identified on the basis of detailed geotechnical survey on the geological environment conditions and landslide deformation characteristics.These characteristics are verified according to the drilling data.Through the analysis of the genetic mechanism of the landslide,it is considered that the deformation and failure mechanism of the phyllite landslide is mainly due to sliding and tension fracturing under the control of steeply dipping structural planes.It belongs to the medium traction rock landslide.On this basis,qualitative analysis combined with quantitative calculation has carried out on the comprehensive analysis and evaluation to the stability of the landslide deposits.The result shows its poor stability,lacking of security reserves,which threats to the highway safety operation.Therefore,some economic and reasonable treatment measures are put forward for the landslide to ensure the safe operation of highway.
作者
黄锋
李强
李九乾
Huang Feng;Li Qiang;Li Jiuqian(Sichuan Communication Surveying&Design Institute Co.,Ltd.,Chengdu 610017,China)
出处
《山西建筑》
2020年第19期54-56,共3页
Shanxi Architecture
关键词
陡倾结构面
成因机制
滑坡稳定性
steep structural plane
genetic mechanism
landslide stability
