生态脆弱矿区含(隔)水层特征及保水开采分区研究

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中文摘要：研究发现,沙漠区植被对地下水水位埋深具有很强的依赖性,揭示了陕北榆神府矿区内合理生态地下水位埋深为1.5～5.0 m,煤层开采的导水裂隙导致地下水位下降,表生生态退化,控制地下水水位是生态脆弱矿区科学开采的核心.室内模拟实验和开采实践表明,当煤层上覆隔水岩组厚度≥33～35倍采高时,煤层开采不会导致地下水位下降;煤层上覆隔水岩组厚度≤18倍采高时,煤层开采会破坏隔水层,导致水位下降;18～35倍采高时,可采取"限制采高"等措施实现保水开采.剖析了煤层、含水层的空间关系,划分了保水开采条件分区,提出了区域采煤方法规划方案,指出以控制地下水水位为目标,以采动隔水层稳定性分区为基础,以采煤方法规划为手段的开采方法是生态脆弱矿区煤炭资源科学开采的有效途径.

外文标题：Study on overburden aquclude and water protection mining regionazation in the ecological fragile mining area

外文摘要：The study find that the desert area vegetation is dependence the depth of groundwater level. It is revealed that the proper groundwater level for vegetation is 1.5 ～ 5.0 m in Yu-Shen-Fu Miming Area in the North Shaanxi Province. The mining fracture zone decreases the ground water level and causes hypergene ecosystems retrogression. So, water level control is the core of scientific mining in the ecological fragile mining area. Mining practice and simulation model tests show that if the thickness of resisting overburden is equal or greater than 33 ～ 35 times mining height, coal mining will not decrease the ground water level, if the thickness of resisting overburden equal or less than 18 times mining height, coal mining must destroy aquiclude and decrease the ground water level, and when it is in 33 ～ 35 times mining height, the proper mining method as " restricting mining height method" can be use for water protection. The effective approach of scientific mining can be carried by the mining method plan with the water level control as the aim and the subarea of coal mining condition as the base in the ecological fragile mining area.

外文关键词：

ecological fragile mining areamined water resisting propertywater protection miningshallow coal seamecological water levelmining method plan

作者：

王双明、黄庆享、范立民、杨泽元、申涛

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作者单位：

西安科技大学能源学院,陕西西安710054

陕西省煤炭工业局,陕西西安710001

陕西省煤炭地质测量技术中心,陕西西安,710001

长安大学环境科学与工程学院,陕西西安710054

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关键词：

生态脆弱矿区隔水层隔水性保水开采浅埋煤层生态水位采煤方法规划

基金：

国家自然科学基金国家自然科学基金新世纪优秀人才支持计划教育部留学回国人员科研启动基金陕西省自然科学基金陕西省软科学计划

项目编号：

5057407440572155NCET-04-0971教外司留2008-8902002D132008KR58

出版年：

2010

煤炭学报

中国煤炭学会

煤炭学报

CSTPCDCSCD北大核心EI

影响因子：3.013

ISSN：0253-9993

年,卷(期)：2010.35(1)

被引量259
参考文献量18