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贵州省三凯高速公路台江滑坡位于台江河谷盆地南东谷坡下部,上覆残坡积层碎块石土,厚1.8～16.2m。在公路路堑边坡支护基础施工切脚开挖过程中,由于连续降雨,诱发坡体发生滑坡,笔者综合地质勘查对改滑坡形成机制及特点进行了分析,提出了相应的治理措施。滑坡治理施工完毕近2年,坡体稳定,滑坡治理达到预期效果,现总结成文,供同类工程参考。
The Taijiang Landslide of San Kai Expressway in Guizhou Province is located in the lower part of the south eastern valley slope of the Taijiang River Valley basin and is covered with crushed stone with a thickness of 1.8 ~ 16.2m. During the excavation of the cutting foot of highway slope supporting foundation, due to continuous rainfall, landslide is induced in the slope. Comprehensive geologic prospecting is used to analyze the forming mechanism and characteristics of the landslide. The corresponding control measures are put forward. Landslide construction has been completed nearly 2 years, slope stability, landslide control to achieve the desired results, is now written, similar projects for reference.