西部生态脆弱区地表开采损害特征  

Characteristics of mining-induced surface damage in western ecological fragile region

作　　者：赵兵朝[1,2] 同超 刘樟荣 刘浪[1,2] 余学义[1,2] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]西安科技大学教育部西部矿井开采及灾害防治实验室,陕西西安710054

出　　处：《中南大学学报（自然科学版）》2017年第11期2991-2998,共8页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51504182;51304156);陕西省自然科学基金资助项目(2015JQ5187);陕西省教育厅基金资助项目(15JK1466);中国博士后科学基金资助项目(2015M582685);西安科技大学能源学院青年教工创新项目(2014-NY-018)~~

摘　　要：为进一步揭示西部生态脆弱区地表开采损害特征形成的机理,在分析影响生态脆弱区地表开采损害特征主要因素(开采深度、开采高度、基岩厚度、载荷层厚度以及坡体自身稳定性)的基础上,研究生态脆弱区厚松散层薄基岩、黄土沟壑及山区丘陵下煤层开采的地表损害特征,并以基采比(基岩厚度与开采高度之比,JC)和基载比(基岩厚度与载荷层厚度之比,JZ)为关键参数,揭示生态脆弱区煤层开采损害特征形成的机理。研究结果表明:以基采比和基载比为基础,结合坡体稳定性引起的附加量,能够有效地分析西部生态脆弱区的开采损害特征,为进一步揭示该区域煤层开采地表损害特征的形成机理提供了依据。To reveal the formation mechanism of mining-induced surface damage characteristics in the western ecologicalfragile region, the characteristics of surface damage under conditions of thick alluvium with thin bedrock, and loessravine and mountain and hills were studied based on the analysis of affecting factors such as mining depth, mining height,bedrock thickness, overburden thickness and slope stability. The ratio of bedrock thickness and mining height （JC）, theratio of bedrock thickness and overburden thickness （JZ）, and the slope stability were employed as key parameters toreveal the formation mechanism. The results show that using JC and JZ, combined with slip additional amount caused byslope stability, the mining damage characteristics of the western ecological fragile area can be effectively analyzed. Thisstudy provides a basis to reveal the formation mechanism of mining-induced surface damage characteristics inthe western ecological fragile region.

关 键 词：生态脆弱区 开采损害 基采比 基载比 坡体稳定性 

分 类 号：TD05[矿业工程]