摘要
以伊敏露天矿排土场增高扩容工程为依托,通过现场勘探、力学试验确定排土场岩土体物理力学参数指标,以动态加载模拟及多因素综合分析为研究手段,确定了排土场增高扩容过程中潜在的破坏失稳机理,在边坡角度与稳定系数动态关系敏感性分析基础上,查明了排弃过程中排土场失稳破坏的动态规律,提出排弃高度不超过725m水平、坡脚为11°的增高扩容方案,实现了排土场边坡失稳风险控制。
Based on a height-increasing and capacity-expanding dumping site project,on-site exploration and mechanical test are carried out to get the physical and mechanics parameters of rock-soil body in the dumping site.And the potential damage instability mechanism in the course of height-increasing and capacity-expanding is determined through dynamic loading simulation and multi-factor analysis.The unstable and destructive dynamic law of the dumping site in the course of damping is then founded under the condition of sensitivity analysis of dynamic relationship between slope angle and stability coefficient.Finally,the height-increasing and capacity-expanding plan is put forward to guarantee the slope stability in the dumping site,in which the dump height is no more than 725 m,and the slope toe is 11°.
作者
王胜
WANG Sheng(Liaoning Jianzhu Vocational University,Liaoyang 111000,China)
出处
《煤炭工程》
北大核心
2021年第5期35-39,共5页
Coal Engineering
基金
国家自然科学基金资助项目(51474050)
辽宁省教育厅2019年度科研项目(JYT-L201904)
2020年辽宁建筑职业学院校级教科研项目(JZXYKT-202015)。
关键词
排土场
边坡结构参数
失稳
风险评估
dump site
parameters of slope stability
instability
risk assessment
作者简介
王胜(1984-),男,辽宁沈阳人,副教授,硕士,现在主要从事边坡工程、岩土工程等领域教学与研究工作,E-mail:174835029@qq.com。
