某高边坡变形破坏机制及整治对策探讨

反倾边坡的稳定性通常较好,但砂窝子高边坡因气候条件恶劣、地质条件复杂、人类工程活动剧烈而发生了大面积的浅表部变形,和一定规模的深部变形,对都江堰至汶川拟建公路的建设构成严重威胁。作者结合现场调查和地质勘察资料,分析了该高边坡的工程地质条件、水文地质条件、岩土体结构特征、以及边坡的变形破坏迹象,归纳出该边坡的变形破坏模式为压缩—倾倒弯曲—错动型,并在此基础上提出了合理的边坡整治方案建议。

THE DEFORMATION MECHANISM OF A HIGH SLOPE AND ITS' REMEDIAL MEASUREMENTS

Commonly as many people accepted, the stability of reversal slope is preferable. But the Shawozi high slope is an exception. For the atrocious weather, complicated geological conditions and unreasonable engineering activities, there is not only large-scale superficial deformation, but also some deep distortion on the slope. If the slope failed, the highway from Dujiangy-an to Wenchuang should be heavily damaged. Based on the data obtained from field observations and geological exploration, the slope's engineering geology environmental conditions, hydro-geological conditions, structure characteristics of it's rock and soil, and the slope's distortion and destruction signs are analyzed in detail. The research results show the Shawozi high slope' s failure model is compression-inclination-elbow-failure. Then, a set of reasonable remedial measurements is suggested.