重庆市万州区荆竹屋基滑坡特征及成因分析

Characteristics and mechanism analysis for Jingzuwuji landslide in Wanzhou,Chongqing

论文通过对重庆市万州区孙家镇荆竹屋基滑坡的野外调查、应急抢险工作,对滑坡发生前后变形特点、滑坡形成机制以及突发性地质灾害应急处理方法等进行了总结和分析。荆竹屋基滑坡属大型基岩顺层、先牵引后推移混合型滑坡,滑坡具有变形快、裂缝、声响、掉块局部垮塌等前兆现象特征明显的特点。调查和分析发现,滑坡前缘不合理采石活动是荆竹屋基滑坡形成的主要因素。作者认为增强全社民地质灾害防灾意识、科学判断快速反应、应急预案中的实用性与操作性和岩质顺向坡的危害性等是未来万州区地质灾害防治工作的重点。

By the field investigation and emergency rescue work for Jingzuwuji landslide at Sunjia town in the Wanzhou District of Chongqing city,this paper summarized and analyzed deformation characteristics before and after the landslide happened,landslide formation mechanisms and emergency treatment methods for sudden geological disaster.Jingzuwuji landslide is a large bedding rock landslide and the type of sliding is hybrid of first traction and then passage. It experienced significant deformation which last about 18 hours. After the investigation and analysis,it can be found that the main factor of Jingzuwuji landslide formation is unreasonable quarrying activities on the front of landslide. At last,the author discussed the prevention works for the future geological disasters in Wanzhou district on the aspects of enhance the prevention awareness of whole society for geological disaster,scientific judgment,rapid response,practicality and maneuverability of emergency plans and the danger of bedding rock slope.