摘要
通过对延安宝塔山景区地质灾害治理工程中的日本工农学校旧址黄土高陡边坡典型案例在进行详细勘察的基础上进行分析,对滑坡发育特征及成灾因素进行深入研究,利用有限元软件FLAC3D建立了黄土高陡边坡数值模型,进行了稳定性和破坏机理的数值模拟试验,深入研究了黄土高陡边坡的稳定性和破坏机理。研究结果表明:黄土湿陷性、坡度、水、工程荷载条件、气候变化以及人为因素是影响黄土高陡边坡稳定性的主要因素;黄土高陡临空坡体的破坏形式主要为塑性剪切破坏。最后提出了使用格构锚杆锚固技术进行综合治理的技术方案。
In this paper the stability of high-steep loess slope was studied based on the Baotashan Geological Hazard Management Project in Yan＇an. Based on the engineering geological conditions,theoretical analysis and FLAC3 D numerical model are used to analyze the failure mechanism of the high and steep slope. The results show that the main factors that affect the stability of high steep slope are loess collapsibility,slope,water,engineering load,climate change and human factors. And damage in the form of high and steep loess slope of the main airport for plastic shear failure. Finally the engineering proposal of lattice anchor was suggested to the project.
出处
《水利与建筑工程学报》
2017年第3期92-95,122,共5页
Journal of Water Resources and Architectural Engineering
基金
国家自然科学基金面上项目(41572261)
国家自然科学基金青年项目(41502277)
西部绿色西部绿色建筑国家重点实验室培育基地开放研究基金项目(LSKF201707)
关键词
黄土
高陡边坡
稳定性分析
破坏机理
loess
high and steep slope
stability analysis
damage mechanism
