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贵阳市北京东路狮子山山体存在危岩较多,其中有一段危岩体裂隙明显,直观时安全隐患较大,且环境较为复杂。危岩体高度20 m。采用爆破方式处理,要对危岩体进行安全防护,以防止在爆破震动的影响下,危岩体整体下滑。首先对危岩体的稳定性进行了定量分析,然后对安全防护的强度进行了校核,以使施工能安全顺利的进行。结果显示危岩体在不受外界动载的影响下,基本稳定;设计的防护强度完全可以安全防护危岩体。
There are more dangerous rocks in the Lion Rock Mountain of Beijing East Road in Guiyang City, among which there are some cracks in the dangerous rock mass which have obvious security risks and the environment is more complex. Dangerous rock body height 20 m. The blasting method is adopted to carry out the safety protection on the dangerous rock mass so as to prevent the dangerous rock mass from slipping down under the influence of blasting vibration. Firstly, the stability of the dangerous rock mass was quantitatively analyzed, and then the strength of the safety protection was checked so that the construction can be carried out safely and smoothly. The results show that the rock mass is stable under the influence of the external dynamic load, and the designed protection intensity can completely protect the rock mass.