摘要
在豫中西部低丘陵地区,农村居民区具有面积较小且分布较松散的特点,在这些区域进行地下煤炭资源开采,留设村庄保护煤柱将压占大量煤炭资源,特别是埋藏深度较深时,仍按照浅部煤层开采的岩层与地表移动参数指导留设煤柱位置,势必使矿区"三下"压煤量迅速扩大。将间续开采技术应用到自然村松散分布条件下的煤炭开采过程中,可以有效控制地表变形量,减小对地表建筑物的损害程度,对有效提高煤炭采出率、降低煤矿开采成本有一定的意义。
In the low hilly area in the middle west of Henan,the residential quarters in the countryside would have the small area and the separated distributed features.There are many underground coal mining activities under those areas.If the protective coal pillars left under those villages,there would be great coal resources under the villages.Especially when the depth of the seam in deep,if still according to the displacement parameters of the rock strata and the surface ground for the coal mining in the shallow depth seam to guide the coal pillar location left,thus the coal resources under the villages,railways and water bodies in the mining areas would be rapidly increased.In the application of the discontinuous mining technology to the coal mining processes under the separated distribution conditions of the natural villages,the surface ground deformation could be effectively controlled and the danger degree of the surface buildings could be reduced,.Thus the discontinuous mining technology would have certain practical significance to effectively improve the coal mining rate and reduce the mining cost.
出处
《煤炭工程》
北大核心
2010年第10期4-6,共3页
Coal Engineering
基金
国家自然科学基金和上海宝钢集团公司联合资助(51074064)
河南理工大学青年基金(Q2008-7)
关键词
间续开采
松散居民点分布
地表变形
discontinuous mining
distribution of separated residential quarters
surface ground deformation
