摘要
为研究山谷型尾矿库在不同坝高和不同坡度条件下坝体稳定性变化规律,以我国广东某山谷型尾矿库为例,运用GEO - studio软件中SL0PE/W模块,建立极限分析法模型分别分析不同坝高和不同坡度条件下,坝体正常工况、洪水工况、特殊工况下边坡稳定性系数的变化情况,并计算了尾矿库可接受风险的最佳坝高。结果表明:尾矿库坝体保持坡度不变,随着坝体高度增加,安全系数大于最小安全系数且逐渐趋近一定值;坝高一定,随着坡度逐渐增大,坝体的安全系数呈现逐渐下降的趋势。
In order to study the variation law of dam stability under different dam heights and different slope conditions, a valley-type tailings pond in Guangdong Province was taken as an example to establish the limit analysis method by using the SLOPE/W module in GEO-studio software. The model analyzes the variation of slope stability coefficient under normal working conditions, flood conditions and special working conditions by different dam height and different slope conditions, and calculates the optimal dam height for acceptable risk of tailings pond. The results show that the dam slope is in a stable state, the slope is kept unchanged, with the dam height of the body increases, the safety factor is greater than the minimum safety factor and gradually ap proaches a certain value;the dam height is certain, and as the slope increases gradually, the safety factor of the dam gradually declines.
作者
李全明
杨曌
张红
Li Quanming;Yang Zhao;Zhang Hong(China Academy of Safety and Science & Technology,Beijing 100012,China;North China Institute of Science & Technology,Sanhe 101601 ,China)
出处
《轻金属》
北大核心
2019年第4期5-8,15,共5页
Light Metals
基金
国家“十三五”重点研发计划项目(项目编号:2017YFC0804600)
中国安全生产科学研究院基本科研业务费专项资金项目(2016JBKY16、2016JBKY17、2018JBKY03)
