长沙冰雪世界高陡边坡工程地质特征及其稳定性评价  

Engineering Geological Characteristics and Stability Evaluation of High and Steep Slopes in Changsha Ice World

作　　者：彭柏兴 王会云 王小平 肖剑 贾永生 雷金山[3] 刘和平 闫兵 杨文杰 Peng Boxing;Wang Huiyun;Wang Xiaoping;Xiao Jian;Jia Yongsheng;Lei Jinshan;Liu Heping;Yan Bing;Yang Wenjie(Changsha Planning & Design Survey Research Institute,Changsha 410007,China;Central South Institute of Investigation and Design Electric Power Company of State,Changsha 410000,China;Civil Engineering College of Central South University,Changsha 410075,China)

机构地区：[1]长沙市规划勘测设计研究院,湖南长沙410007 [2]国家电力总公司中南勘测设计研究院,湖南长沙410000 [3]中南大学土木学院,湖南长沙410075

出　　处：《城市勘测》2021年第5期181-187,共7页Urban Geotechnical Investigation & Surveying

摘　　要：长沙冰雪世界的前身是开采50多年的水泥厂废弃矿坑,形似椭圆,深愈100 m,高陡岩质边坡的稳定性评价问题是工程建设的重点。文章通过地质调查、工程物探、钻探、岩矿鉴定、数字摄影编录技术、现场直剪试验及稳定性计算等技术方法,对边坡工程地质特征、岩体结构类型及工程岩体质量进行了研究,对边坡变形破坏模式、破坏类型、控制因素及成因进行了探讨,对高陡边坡的稳定性进行了分析和模拟计算。结果表明:岩层倾角平缓,对边坡稳定影响不大,整体基本稳定。边坡局部岩体质量差,稳定性差,可能出现局部失稳破坏,并提出了针对性措施建议,为工程建设提供了工程地质依据。The predecessor of Changsha Ice World is the remains of a cement plant which has been mined for more than 50 years.It looks like an ellipse with a depth of more than 100 m.The stability evaluation of high and steep slope has become a major engineering problem in the construction projects.In this paper,the failure types engineering geological characteristic,rock mass structure,rock mass quality of high and steep slope are revealed by the method of field investigation,engineering geophysical exploration,drilling,rock and mineral identification,digital photographic logging technology,field direct shear test and stability calculation,the development characteristics,deformation and failure pattern,failure types,controlling factors and cause analysis of the high and steep slope is analyzed.The stability of high and steep slope is evaluated and simulated.The results show that the dip angle of rock stratum has little influence on the stability of the slope,which is basically stable on the whole.The corresponding measures and suggestions are put forward for local instability of slope where the local rock mass is poor in quality and stability.The research results can provide engineering geological basis for construction.

关 键 词：工程地质 高陡边坡 岩体结构 变形破坏 边坡稳定性 长沙冰雪世界 

分 类 号：P642[天文地球—工程地质学]