广西德保县通怀锰矿地质灾害危险性评价及防治对策研究

RESEARCH ON DANGEROUS ASSESSMENT OF GEOLOGICAL DISASTER AND PREVENTION MEASURES FOR TONGHUAI MANGANESE MINE IN DEBAO COUNTY,GUANGXI PROVINCE

德保县通怀锰矿矿山建设开采可能引发的地质灾害有崩塌、滑坡地质灾害,危险性小—中等;地下平硐采矿引发采空区地面塌陷,并引发地面崩塌、滑坡、地裂缝产生的可能性大,危险性中—大等;地下平硐采矿,遭受井巷冒顶及井壁片邦,危险性中等;03线以西生活区遭受采空区地面塌陷地质灾害,危险性大。在基本查明矿山可能引发、加剧和遭受的地质灾害的基础上,提出对不同地段分别采用建拦砂坝、留设足够的保安矿柱、加强灾害监测等措施进行防治。

We have studied deeply on dangerous assessment of geological disasters and prevention measures,as well as identified the geological environment and the characteristics of geological disasters happened at Tonghuai manganese mine.The research result shows that some geological disasters at the risk of small-medium scale such as collapse and landslide will be caused by mining;and also some disasters will be caused by aditcut mining,such as the earth collapse,landslide and crack at the risk of medium-large scale,as well as the crush roof fall and sloughing at the risk of medium scale.Living areas on the west of No.3 prospecting line are more dangerous for the depression of exhausted area.The paper brings up some detailed prevention measures for some geological disasters including collapse,landslide,crush roof fall,sloughing,depression of exhausted area,debris flow and water gushing-out from rabbet.