天龙山连接线K2+480~K2+690段不稳定边坡(1号桥左侧)工程治理设计

K2 of Tianlong Mountain Link 480-K2 Engineering Treatment Design of 690 Unstable Slope(Left of Bridge No.1)Section

天龙山连接线K2+480-K2+690段不稳定边坡(1号桥左侧)坡积碎块石覆盖层较厚且岩体破碎,坡体在开挖后加之人工活动强烈、一直处于蠕动状态,对外侧桥墩形成威胁。根据该边坡的地形地貌、地层岩性等特点,对该边坡蠕动原因进行分析,对其稳定性进行计算,最终采取锚索框架+抗滑桩的支挡防护工程进行设计。实践表明天龙山连接线K2+480-K2+690段不稳定边坡治理效果满足要求。本次治理工程可为重要构筑物附近不稳定边坡防治工程提供工程借鉴和技术支撑。

K2 of Tianlong mountain link 480-K2 the unstable slope of section 690(left side of No.l Bridge)has a thick overburden and broken rock mass,and the slope body is always in a peristaltic state after excavation,which threatens the lateral piei\Based on the features of topography,geomorphology and stratigraphic lithology,this paper analyzes the causes of creep of the slope,calculates its stability,and finally designs the main retaining protection project of anti-slide pile with anchor cable frame.K2 of tianlong mountain link 480-K2 the treatment effect of unstable slope in 690 section meets the requirements.This management project can be The prevention and control project of unstable slope near important structure provides engineering reference and technical support.