基于可靠度理论的岩质边坡经济风险评价
发布时间:2018-07-05 13:35
本文选题:岩质边坡 + 稳定分析 ; 参考:《水力发电》2015年11期
【摘要】:基于可靠度理念,提出了岩质边坡经济风险分析的基本流程和方法。以某工程料场开挖边坡为例,利用刚体极限平衡法进行了典型断面的稳定性计算,论证了边坡支护实施的必要性;基于FLAC3D数值计算软件,利用强度折减法拟定了所需支护的最危险滑动通道;通过体系可靠度计算方法对比了不同支护方案的失效概率;基于风险损失最小的原则,确定了该岩质边坡较为合理的支护方案。
[Abstract]:Based on the concept of reliability, the basic process and method of economic risk analysis of rock slope are put forward. Taking the excavation slope of a material yard as an example, the stability of typical section is calculated by means of rigid body limit equilibrium method, and the necessity of slope support is demonstrated, which is based on FLAC3D numerical calculation software. Using the strength reduction method, the most dangerous sliding passage of the required support is worked out; the failure probability of different support schemes is compared by the reliability calculation method of the system; based on the principle of minimum risk loss, The reasonable supporting scheme of the rock slope is determined.
【作者单位】: 四川大学水利水电学院;
【分类号】:TU45
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