高边坡综合治理设计探讨

针对东至至九江高速公路安徽段具有代表性的高边坡进行了分析，根据风化岩质边坡结构面及破坏形式的不同，选取了不同的支护形式。对滑动破坏型高边坡进行了数值分析，结果表明，对滑动破坏型高边坡采用锚杆锚索联合支护时，在边坡中部用预应力锚索支护，不但能有效控制边坡上部的变形，而且能大大减小荷载向下部传递，因此减小边坡下部的位移。通过采用预应力锚索对滑动破坏型边坡主动加固，达到了允许边坡发生一定滑移，充分发挥边坡的自稳能力，并结合全长粘结锚杆支护，达到了经济有效地治理高边坡的目标。

Discussion on Comprehensive Treatment Design for High Slope

Different types of supports are chosen for the rock high slope of the expressway from Dongzhi to Jiujiang which is in Anhui province according to the structural plane and collapse mode. The sliding failure type high slope is analyzed by simulation method, the results show that the prestressed anchor cable should be used in the middle part of the slope and bolt support should be used in the bottom and top of slope when using combing support in the high slope. It not only can properly control the top displacement of the slope and fully play the slope stableness itself but also can support the high slope economically and effectively.