露天采矿技术2026，Vol.41Issue(2)：97-101,5.DOI:10.13235/j.cnki.ltcm.20250323
贵州大湾露天煤矿外部排土场协同设计与稳定性分析
Cooperative design and stability analysis of external dump in Guizhou Dawan Open-pit Coal Mine
杨康 1孙奔 1冯支雄 1杨贵建1
作者信息
- 1. 贵州致远工程技术咨询有限公司,贵州 贵阳 550000
- 折叠
摘要
Abstract
To address the disconnect between stability assessment and drainage,reclamation design for the high-storage waste dump in Guizhou Dawan Open-pit Coal Mine,through engineering geological surveys,laboratory testing and numerical simulation,we obtain the physical and mechanical parameters of rock-soil mass,and present cooperative design scheme of"zonal backfilling-layered compaction-graded slope-multi-level drainage-ecological restoration"approach,conduct stability and drainage capacity calculation under multiple scenarios for representative profiles and retaining walls using LIZHENG Geotechnical Analysis Software Version 7.0 and GE05-2022-CHN geotechnical calculation program.The results show that under normal and rainstorm conditions,the safety factors of external dump slope range from 1.28 to 1.46 and from 1.15 to 1.31,respectively.All stability indicators for the retaining wall and the flood discharge capacity of the drainage system meet code requirements.This cooperative design system ensures the long-term stability and safety of the external dump,and realizes efficient reclamation and utilization of land for external dump,which provide technical reference for the design and development of open-pit coal mine external dump in southwestern karst mountainous areas.关键词
岩溶山区/外部排土场/露天煤矿/边坡稳定/生态复垦/协同设计Key words
karst mountain region/external dump/open-pit coal mine/slope stability/ecological reclamation/cooperative design分类
矿业与冶金引用本文复制引用
杨康,孙奔,冯支雄,杨贵建..贵州大湾露天煤矿外部排土场协同设计与稳定性分析[J].露天采矿技术,2026,41(2):97-101,5.
