兴义市马岭镇龙井滑坡稳定性分析及防治对策探讨

2019年2月17日,贵州省兴义市发生山体滑坡,由于事前采取了有效的监测预警与防范应对措施,没有导致任何人员伤亡和财产损失。经现场调查,一旦继续遭受强降雨等不利因素的影响,滑坡可能会变形滑动。基于现场调查,查明龙井滑坡的地形地貌、地层岩性、岩土体结构特征和水文地质条件,并采用传递系数法对滑坡进行稳定性评价,评价该滑坡在天然、暴雨和地震工况下的稳定性。最后,根据滑坡推力计算结果,分别针对性的对滑坡的3个区提出工程防治措施:滑坡Ⅰ区稳固措施;滑坡Ⅱ区清危、稳固措施;滑坡Ⅲ区采取抗滑桩、截排水沟治理措施。

STABILITY ANALYSIS AND PREVENTION OF LONGJING LANDSLIDE IN MALING TOWN OF XINGYI CITY

On February 17,2019,there was a landslide in Xingyi City,Guizhou Province.Since warning system and effective measures were taken before the landslide,there were no immediate reports of casualties or damage.Based on the live observations,the landslide may be deformed and slide fast under the influence of continuous rainfall or rainstorm.Analyze systematically of the geomorphic,rock characters,structural type of rock and soil mass,hydrological condition in Longjing,transport coefficient method were proposed and applied to evaluate the stability of landslide under natural situation,rainstorm and earthquake conditions.At last,based on the results of thrusting force of landslide,the prevention technology of three landslide areas are given in the paper:the landslideⅠsolid measures;LandslideⅡclearance dangerous rock,and solid measures;LandslideⅢanti-slide pile,intercepting drain management measures.