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某铁矿露天采场北帮滑体多次滑塌,严重影响到矿山生产的规划与安全。本文根据滑体所处周边环境条件和工程地质水文地质特征,分析滑体的成因机制和破坏模式,查明滑体的范围、规模和潜在剪出位置,对构成滑体的不同岩体和滑塌主次区段分别采用与之相应的治理工程措施,采用多种计算方法和不同工况对治理后的滑体稳定性进行分析验证。治理后的滑体经矿山多年生产开采,结果证明了治理方案的安全可靠。
An iron ore open pit north of the slide to help slide several times, seriously affecting the mine production planning and safety. Based on the environmental conditions surrounding the slide and the geological and hydrogeological features of the engineering geology, this paper analyzes the formation mechanism and failure mode of the slide, ascertains the scope, scale and potential cutting position of the slide, Sub-main sections of collapse main and corresponding engineering measures are adopted respectively, and the stability of the sliding body after treatment is analyzed and verified by various calculation methods and different working conditions. After the management of the body by the mine for many years production of mining, the results proved that the safe and reliable treatment program.