条带开采充填对底板变形的影响分析  

Influence Analysis of Floor Deformation Under Strip Mining Filling

作　　者：谷拴成[1] 张新蕾[1] 

机构地区：[1]西安科技大学建筑与土木工程学院,陕西西安710054

出　　处：《煤矿安全》2016年第6期226-229,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51508462)

摘　　要：针对充填对底板变形的影响,基于地基塑性变形区边界方程求解思想,提出了充填和无充填时底板塑性区边界方程,据此确定塑性区范围。结合实例分析,比较了充填和无充填时底板塑性区大小,研究了充填对底板变形的影响,得出了充填减小时煤柱下底板塑性变形区域,为更好地利用条带充填开采技术,指导底板巷道合理布置与底板维护,提高煤炭开采率,减少煤矿安全事故提供了依据。In view of the effect of filling on floor deformation,based on the solution procedure of foundation plastic deformation area boundary equation,we propose the boundary equation of plastic zone during filling or without filling,and determine the scope of plastic zone. Combined with case analysis,we compared the size of floor plastic zone during filling or without filling,researched the influence of filling on floor deformation,and got that filling reduced the plastic zone of pillar bottom. To better using strip filling mining technology,it provided a theoretical basis for guiding the rational distribution of floor roadway and maintenance,increasing the rate of coal mining,reducing coal mine safety accidents.

关 键 词：条带开采充填 煤柱荷载 底板变形 边界方程 塑性区 

分 类 号：TD823.7[矿业工程—煤矿开采]