中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2015年
5期
42-45
,共4页
洛河组%含水层%地下水%富水性
洛河組%含水層%地下水%富水性
락하조%함수층%지하수%부수성
Luohe Formation%aquifer%groundwater%water yield property
煤田内影响煤层开采主要含水层为白垩系下统洛河组砂岩含水层，该含水层地下水受地表分水岭的控制作用，地下水最高水位稍向东偏移；区域构造演化形成洛河组底界面从北向南凹陷和隆起依次展布的特征，含水层地下水受隆起地带的阻隔，在凹陷地带形成富集区域，洛河组顶界面由于上覆地层华池组缺失区域，直接接受大气降水和地表水的补给，局部出现富集区；洛河组的沉积相主要为沙漠沉积相的沙丘亚相，平面与垂向上分布稳定，由于岩石孔隙的发育，往往含有大量的水，而且含水层厚度与富水性呈正相关关系。
煤田內影響煤層開採主要含水層為白堊繫下統洛河組砂巖含水層，該含水層地下水受地錶分水嶺的控製作用，地下水最高水位稍嚮東偏移；區域構造縯化形成洛河組底界麵從北嚮南凹陷和隆起依次展佈的特徵，含水層地下水受隆起地帶的阻隔，在凹陷地帶形成富集區域，洛河組頂界麵由于上覆地層華池組缺失區域，直接接受大氣降水和地錶水的補給，跼部齣現富集區；洛河組的沉積相主要為沙漠沉積相的沙丘亞相，平麵與垂嚮上分佈穩定，由于巖石孔隙的髮育，往往含有大量的水，而且含水層厚度與富水性呈正相關關繫。
매전내영향매층개채주요함수층위백성계하통락하조사암함수층，해함수층지하수수지표분수령적공제작용，지하수최고수위초향동편이；구역구조연화형성락하조저계면종북향남요함화륭기의차전포적특정，함수층지하수수륭기지대적조격，재요함지대형성부집구역，락하조정계면유우상복지층화지조결실구역，직접접수대기강수화지표수적보급，국부출현부집구；락하조적침적상주요위사막침적상적사구아상，평면여수향상분포은정，유우암석공극적발육，왕왕함유대량적수，이차함수층후도여부수성정정상관관계。
The main aquifer impacting coal mining in Jurassic Huanglong coalfield is the lower Cretaceous Luohe Formation sandstone aquifer. Groundwater in the aquifer is controlled by surface watershed, highest water level of groundwater slightly migrating eastward. Tectonic evolution formed Luohe Formation bottom surface has characteristic of depressions and uplifts spreading successively from north to south. Groundwater in aquifer is separated by uplift zones thus formed enrichment in depression zones. On the Luohe Forma?tion top surface Huachi Formation hiatus area, is directly recharged by atmospheric precipitation and surface water brings about local enrichment zones. The sedimentary facies of Luohe Formation is mainly sand dune subfacies of desert facies, stably distributed horizon?tally and vertically. Since the well developed rock fissures tend to be large amount water containing, and positive correlation between aquifer thickness and water yield property.
