中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
7期
45-51
,共7页
宋友凯%来永伟%刘艳%孔庆虎%李本军%齐荣贵
宋友凱%來永偉%劉豔%孔慶虎%李本軍%齊榮貴
송우개%래영위%류염%공경호%리본군%제영귀
水文地质条件%充水水源%充水通道%济宁三号煤矿
水文地質條件%充水水源%充水通道%濟寧三號煤礦
수문지질조건%충수수원%충수통도%제저삼호매광
hydrogeological condition%water filling source%water filling channel%Jining No.3 coalmine
济宁三号煤矿目前开采的煤层为上组煤的3煤(3上、3下煤),自投产以来,发生多次涌水,如13下01综放面侏罗系底部含水层最大涌水量达533.84m3/h,63下01综放3煤顶板砂岩最大涌水量527m3/h,曾一度出现工作面局部被淹而导致停产,对矿井的安全高效生产构成了极大的威胁。在综合分析研究上组煤顶板各含水层的水文地质特征和充水条件的基础上,认为上组煤(3上、3下煤)开采时的直接充水水源为3煤顶板砂岩含水层;间接充水水源是侏罗系含水层水以及局部地区对侏罗系含水层起补给作用的第四系含水层;部分地区侏罗系含水层被采动裂隙导通而成为直接充水水源,大部分地段第四系底部均为粘土,有效的阻隔了第四系与下伏侏罗系含水层的水力联系,对下伏含水层补给微弱;充水通道主要有断层、采动裂隙、封闭不良钻孔和破坏的井筒。为指导下一步煤矿生产预防水害事故提供了依据。
濟寧三號煤礦目前開採的煤層為上組煤的3煤(3上、3下煤),自投產以來,髮生多次湧水,如13下01綜放麵侏囉繫底部含水層最大湧水量達533.84m3/h,63下01綜放3煤頂闆砂巖最大湧水量527m3/h,曾一度齣現工作麵跼部被淹而導緻停產,對礦井的安全高效生產構成瞭極大的威脅。在綜閤分析研究上組煤頂闆各含水層的水文地質特徵和充水條件的基礎上,認為上組煤(3上、3下煤)開採時的直接充水水源為3煤頂闆砂巖含水層;間接充水水源是侏囉繫含水層水以及跼部地區對侏囉繫含水層起補給作用的第四繫含水層;部分地區侏囉繫含水層被採動裂隙導通而成為直接充水水源,大部分地段第四繫底部均為粘土,有效的阻隔瞭第四繫與下伏侏囉繫含水層的水力聯繫,對下伏含水層補給微弱;充水通道主要有斷層、採動裂隙、封閉不良鑽孔和破壞的井筒。為指導下一步煤礦生產預防水害事故提供瞭依據。
제저삼호매광목전개채적매층위상조매적3매(3상、3하매),자투산이래,발생다차용수,여13하01종방면주라계저부함수층최대용수량체533.84m3/h,63하01종방3매정판사암최대용수량527m3/h,증일도출현공작면국부피엄이도치정산,대광정적안전고효생산구성료겁대적위협。재종합분석연구상조매정판각함수층적수문지질특정화충수조건적기출상,인위상조매(3상、3하매)개채시적직접충수수원위3매정판사암함수층;간접충수수원시주라계함수층수이급국부지구대주라계함수층기보급작용적제사계함수층;부분지구주라계함수층피채동렬극도통이성위직접충수수원,대부분지단제사계저부균위점토,유효적조격료제사계여하복주라계함수층적수력련계,대하복함수층보급미약;충수통도주요유단층、채동렬극、봉폐불량찬공화파배적정통。위지도하일보매광생산예방수해사고제공료의거。
The target mining coal seam is coal No.3 (3U and 3L) in upper coal group in the Jining No.3 coalmine at present. Since the production, water gushing happened many times. Such as 13L01 fully mechanized caving face Jurassic bottom aquifer maximum water inflow 533.84m3/h, 63L01 fully mechanized caving face coal No.3 roof sandstone maximum water inflow 527m3/h have lead to a halt of production once because of working face flooding locally, thus seriously threatened coalmine safe and efficient production. Based on an-alytic investigation of upper coal group aquifer hydrogeological characteristics and water filling condition, considered that the direct wa-ter filling source is coal No.3 roof sandstone aquifer during the winning of upper coal group coal No.3 (3U and 3L);while the indirect water filling sources have Jurassic aquifers water and Quaternary aquifers water locally recharged into Jurassic aquifers. Parts of Juras-sic aquifers because of mining-induced fissure conducting become direct water filling source. Most parts of Quaternary bottom is clay, effectively blocks hydraulic connection with underlying Jurassic aquifers, thus the recharge into underlying aquifers is very weak. Wa-ter filling channels have faults, mining-induced fissures, poorly sealed boreholes and destructive shafts. The study has provided basis for water hazard prevention in coalmine production.