三峡库区滑坡防治研究+具体案例+flac3d模拟

三峡工程库区滑坡研究

三峡工程水库近坝库段野猫面滑坡防治方案研究

内 容 摘 要

本文旨在对滑坡体进行防治方案研究，通过滑坡方案设计，以及对可能发生的地质灾害作长期、中期和短期预报，了解和掌握其随时间、地质条件、迳排条件及地下水、库水位作用及人类活动等条件的变化过程，研究引起滑坡的成因，进一步研究技术经济合理的防治方案，这是一项迫切而永久性的课题，具有重大的社会和经济意义。

本文阐述了野猫面滑坡的工程地质条件、稳定性分析、危害性分析，治理方案的拟定、效果评价、经济分析、方案比选，方案设计。运用二维刚体极限平衡法和数值分析法（FLAC3D软件）等分析计算方法，分析滑坡分别在四种工况条件下的稳定性情况，说明了滑坡治理的必要性；根据该工程的特点，按照阻滑和排水两种治理措施，针对性地进行防治方案研究，综合考虑方案的技术可行性、经济合理性、施工难易程度等因素，提出了深埋式锚索+地表地下排水、钢筋混凝土阻滑键+地表地下排水、抛石压脚+地表地下排水等三种滑坡治理方案，通过对每个方案进行详细的效果评价和经济分析及对比计算和比较，最终择优选择钢筋混凝土阻滑键+地表地下排水方案。同时对工程实施后的环境影响及措施进行了分析。该滑坡工程防治方案的研究对其他同类滑坡治理工程也有指导意义和应用前景。

关键词：野猫面滑坡 防治方案 研究

Abstract

The mainly studied prevention scheme of landslide. By designing landslidescheme and making a long-period forecast, medium-range forecast, short-range forecast ongeological disaster which was likely to happen, understanding and commanding the changeprocess with time, geology condition, flow condition and groundwater, the effect of storagewater and human activity and so on, researching the cause of landslide, further studyingprevention scheme with reasonable technology and economy, which was an impending andpermanent task having a significant social and economical meaning.

Engineering geology condition, stability analysis, hazard analysis, the choosing ofimprovement scheme, effect evaluating, economy analysis, scheme comparison, schemedesigning were expatiated in the . Landslide stability was analysed in four loads withtwo dimension rigid equilibrium limit and numerical analysis (FLAC software) and othercomputation method, which account for the necessary of slide improvement. Preventionscheme was researched with the two improvement measure of resistance sliding anddraining according to the characteristic of the engineering. Deeply-buried anchor andground surface and underground drainage, concrete resistance sliding key and groundsurface and underground drainage, dumped rockfill toe pressure and ground surface andunderground drainage were put forward considering the technical feasibility of scheme,economy rationality and the difficulty degree of construction and other facts. Concreteresistance sliding key and ground surface and underground drainage was chose eventuallyby comparing and analysing effect evaluating and economy analysis of every scheme. Theenvironment effect after engineering construction and measure were analysed. The studyon the prevention and cure scheme of the slope engineering had a guidance meaning andapplication prospect for other engineering landslide improvement.

Keywords: Yemaomian landslide prevention scheme research

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