锚索与抗滑桩在顺层岩质边坡治理中的应用  

Application of Anchorage Cable and Anti-sliding Pile on Treatmeat of Bedding Rock Slope

作　　者：柳治国[1] 谭捍华[1] 张家新[2] 

机构地区：[1]贵州省交通规划勘察设计研究院,贵州贵阳550001 [2]中交第二公路勘察设计研究院有限公司,湖北武汉430050

出　　处：《公路工程》2008年第3期14-17,42,共5页Highway Engineering

基　　金：交通部科技项目(2006318802111)

摘　　要：分析了镇胜高速公路k158＋980～k159＋160左侧顺层岩质边坡发生滑坡的原因。采用综合φ值法，通过反算，确定了滑动面的抗剪强度参数，为滑坡剩余下滑力的计算提供了合理的数据。计算结果发现，抗滑桩桩身配筋在滑坡推力采用矩形分布的情况下偏于安全。结合锚索砼框架，坡体中部得到加固，同时分担了一部分剩余下滑力，减轻了抗滑桩的荷载，提高了边坡的抗滑安全性。最终治理效果表明：采用抗滑桩支挡与锚索加固的综合治理方案，是治理顺层岩质滑坡的一个有效途径。An emphasis is taken on analysising why the landslide happens, in segment of K158 ＋ 980 ～ K159 ＋ 160 at Zhenning-Shengjingguan Expressway, which is a bedding rock slope at left of the route. Using the method of comprehensive internal friction φ, the shear strength parameters of sliding plane are detemined by back-calculating, in order to supply reasonable parameters on calculating the rest pust of the landslide. The calculation results show that the distributed steel of anti-slide pile tends to be more safe, on the condition of the landslide-thrust being rectangular distributed. Combining the concrete frame attached with anchorage cable, the mid-body of the slope is reinforced, and a part of rest push which is loaded on the anti-slide pile is shared by the concrete frame, so the anti-slide safety of the slope is updated. The last treatment effect indicates that it is an effective means by combining anti-slide pile with anchorage cable, in the treatment of bedding rock landslide.

关 键 词：顺层岩质边坡 抗剪强度参数 剩余下滑力 抗滑桩 锚索 

分 类 号：U416.14[交通运输工程—道路与铁道工程]