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某工程岩体具有开挖后加速风化的特点,由于雨水下渗易形成软弱结构面,加上原有软弱结构面的存在,岩体开挖超过稳定极限高度后,首先沿岩体原有软弱结构面破坏,然后沿边坡开挖后风化卸荷雨水下渗形成的软弱结构面发生滑动变形破坏。由于工程抢险措施不当,整个约75m高的边坡发生滑动变形破坏。分析边坡破坏方式,对所采取的处理措施进行探讨。
Because of the characteristic of accelerating weathering after excavation, the rock mass of an engineering project is characterized by the formation of weak structural surface due to infiltration of rainwater and the existence of the original weak structural plane. After excavation of the rock mass exceeds the stable limit height, the original weak structure of the rock mass Surface failure, and then slide along the slope excavation weathering unloading rainwater infiltration of weak structures formed by sliding deformation and destruction. Due to improper rescue measures, the entire slope of about 75m in height is deformed by sliding deformation. Analyze the way of slope failure and discuss the treatment measures taken.