Research On Stability And Eco-protection Technology Of High-cut Slope

With the highway construction to the continuous extension of the mountain, higewayconstruction has been very popular in the mountains. Mountain roads due to the complexgeological conditions of terrain and fragile environment, geological diseases occurfrequently, and the types of disease is a varied,there are many security risks, high-cut slopeengineering issues become more prominent, so constructing the highway in mountain area,pay attention to stability and protection of high–cut slope bestially.This article rely on the highway construction from Leshan to Yibin, starting from theslope structure of high-cut slope, proposed the establishment of structures, and by relyingon high excavated slope in engineering geology and slope investigation and analysis of thestructure, select typical of high-cut slope stability and ecological protection technology forresearch. First, through high dug slope of geological investigation, established the methodof slope structure, summary out main geological features and main control factors ofeffecting excavation lost stability of all slope body, made stability analysis method ofconsidered slope body structure, forecasting slope body of deformation; used rock massslope analysis software, using limit balance method on typical high dug slope in twospecies-natural and engineering protection of stability for analysis, the results indicates:after useing engineering protection, safety factor reduced8%around than natural state,From considering of economic and environmental, recommended canceling frameworkbeam protection to barbed wire and three dimensional network planting protection, andproposed in slope excavation, rate of excavation slope and integrated slope rate of naturalslope should be keep ing consistent or near,to improve stability of slope effectively; second,research on slope ecological protection, combinat the appeared problems of high-cut slopeprotection at this stage, give principles of ecological protection (stability is fundamental,combination of soft and hard protection, tree filling and grass combinating, economybeautiful and environmental), While focus on protection and drainage to improving designand construction; finally, made comprehensive evaluation of slope ecological protection inthe scope of the road area to determine content and index system of the evaluation, giveweights and scores of evaluation indexes, use two kinds of evaluation methods of fuzzy mathematics and comprehensive evaluation, determine the assessment level of classification,and use instance to verify the feasibility of evaluation method.