陕西煤炭
陝西煤炭
협서매탄
SHAANXI COAL
2015年
2期
31-34
,共4页
导水裂隙带%保水采煤%钻孔成像(井下电视)%两带探测方法
導水裂隙帶%保水採煤%鑽孔成像(井下電視)%兩帶探測方法
도수렬극대%보수채매%찬공성상(정하전시)%량대탐측방법
water flowing fractured zone%water-preserved mining%borehole imaging ( underground TV )%detection method of“two zones”
张家峁井田含煤5层，研究采煤工作面导水裂隙带发育高度，不仅涉及矿井充水含水层分析和涌水量预测，而且对于含水层结构和常家沟水库水源地保护都具有重要价值。通过对开采5－2煤层的15204长壁综采工作面的探测，确定了导水裂隙带高度为65.10～69.17 m。其4－2煤层开采导水裂隙带局部地段已延伸至地表。5－2煤层开采导水裂隙带已延伸至4－2煤层底板以上，在接近沟谷上覆基岩厚度较薄地段已延伸至土层，局部地段延伸至地表。虽然各煤层间含水层含水性极弱，层层累加的采空区积水可能会对矿井造成较大危害。
張傢峁井田含煤5層，研究採煤工作麵導水裂隙帶髮育高度，不僅涉及礦井充水含水層分析和湧水量預測，而且對于含水層結構和常傢溝水庫水源地保護都具有重要價值。通過對開採5－2煤層的15204長壁綜採工作麵的探測，確定瞭導水裂隙帶高度為65.10～69.17 m。其4－2煤層開採導水裂隙帶跼部地段已延伸至地錶。5－2煤層開採導水裂隙帶已延伸至4－2煤層底闆以上，在接近溝穀上覆基巖厚度較薄地段已延伸至土層，跼部地段延伸至地錶。雖然各煤層間含水層含水性極弱，層層纍加的採空區積水可能會對礦井造成較大危害。
장가묘정전함매5층，연구채매공작면도수렬극대발육고도，불부섭급광정충수함수층분석화용수량예측，이차대우함수층결구화상가구수고수원지보호도구유중요개치。통과대개채5－2매층적15204장벽종채공작면적탐측，학정료도수렬극대고도위65.10～69.17 m。기4－2매층개채도수렬극대국부지단이연신지지표。5－2매층개채도수렬극대이연신지4－2매층저판이상，재접근구곡상복기암후도교박지단이연신지토층，국부지단연신지지표。수연각매층간함수층함수성겁약，층층루가적채공구적수가능회대광정조성교대위해。
Zhangjiamao Coal Mine contains 5 layers of coal seam .The research of the height of water flowing fractured zone in coal working face has important significance for the prediction of water inflow and water source protection of Changjiagou reservoir.By the actual detection in №15204 fully mechanized mining face , the height of water flowing fractured zone is 65.10~69.17m.The water flowing fractured zone of 4-2 coal seam has extended to the surface in local area .The water flowing fractured zone of 5-2 coal seam has extended to 4-2 coal seam floor , to soil layer in thin bedrock area near valley ex-tends and to the surface in local area .Although water content of each aquifer is extremely weak , the goaf water may cause harm to the mine after multi-coal seam mining .
