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随着道路工程等建设活动逐步向城市周边山体发展,在暴雨等气候条件下,因人为工程活动而诱发的滑坡类地质灾害频发,如何预防与治理此类灾害成为城市建设的新课题。本文以贵阳黔灵湖大桥滑坡为例,根据工程地质调查及勘查的成果资料,分析了该滑坡的发育历史,变形特征及形成条件,重点阐述在对该滑坡勘察时以收集地质资料及地表地质调查、工程测量、钻探、工程物探、岩土试验多种手段相结合的勘察方法,尽可能准确的划定滑坡的范围及滑动面等滑坡要素,以及利用现场试验结果及参数的反演计算等方法,使得计算参数更加符合实际情况。并在此基础上对滑坡的稳定性进行了分析,最后提出了滑坡防治的措施。
With the construction activities such as road engineering gradually developing to the mountainous area around the city, landslide-like geological disasters induced by man-made engineering activities are frequent under the climatic conditions such as rainstorms. How to prevent and manage such disasters has become a new issue of urban construction. In this paper, Guiyang Qianling Lake Bridge landslides as an example, based on the engineering geological survey and exploration results of the data, analysis of the landslide development history, deformation characteristics and formation conditions, focusing on the investigation of the landslide to collect geological data and surface geological Investigation, engineering surveying, drilling, geophysical prospecting and geotechnical test, as much as possible to delineate the scope of landslide and landslide elements such as sliding surface, as well as to use the field test results and inversion calculation of parameters Method, making the calculation parameters more in line with the actual situation. On this basis, the stability of the landslide is analyzed, and finally the measures of landslide prevention and control are put forward.