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该文针对四个电力工程弱膨胀性岩土挖填方边坡失稳破坏案例,总结分析了弱膨胀性岩土工程边坡失稳破坏的特征及规律。通过总结归纳干湿循环对弱膨胀性岩土的裂隙发展及抗剪强度衰减的规律,分析了干湿循环对边坡稳定性的影响,提出了在弱膨胀性岩土工程边坡勘测设计及施工中,应考虑干湿循环的影响。
In this paper, four cases of failure of slope under weak expansive geotechnical excavation in power engineering are summarized, and the characteristics and regularities of the failure of the weak swelling geotechnical slope are summarized. By summarizing the law of crack development and shear strength attenuation of weak expansive rock and soil during wetting and drying cycles, the influence of wetting and drying cycles on slope stability is analyzed. Construction, should consider the impact of wet and dry cycles.