煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2014年
5期
50-54
,共5页
刘满才%许光泉%刘丽红%李之奋%窦春远%金修如
劉滿纔%許光泉%劉麗紅%李之奮%竇春遠%金脩如
류만재%허광천%류려홍%리지강%두춘원%금수여
63301工作面%灰岩含水层%示踪试验%岩溶通道
63301工作麵%灰巖含水層%示蹤試驗%巖溶通道
63301공작면%회암함수층%시종시험%암용통도
working face 63301%limestone aquifer%tracing test%karst channel
为了查明新庄孜煤矿63301工作面1组煤层底板灰岩含水层的突水通道,分别从太原组灰岩、奥陶系灰岩含水层投放NaCl示踪剂,寒武系灰岩含水层观测孔投放KI示踪剂,在工作面突水点间隔采集样品。经测试分析其浓度随时间变化关系曲线发现:底板太原组灰岩含水层中存在多条小通道和一条大通道,奥陶系灰岩含水层中存在多条小通道,而寒武系灰岩含水层存在2条通道,在不同灰岩含水层通道中,水流速度存在较大差异性,反映了其岩溶裂隙发育非均匀性特点。此外,利用本次突水资料,计算灰岩含水层的参数。为工作面底板太原组灰岩水害治理提供依据。
為瞭查明新莊孜煤礦63301工作麵1組煤層底闆灰巖含水層的突水通道,分彆從太原組灰巖、奧陶繫灰巖含水層投放NaCl示蹤劑,寒武繫灰巖含水層觀測孔投放KI示蹤劑,在工作麵突水點間隔採集樣品。經測試分析其濃度隨時間變化關繫麯線髮現:底闆太原組灰巖含水層中存在多條小通道和一條大通道,奧陶繫灰巖含水層中存在多條小通道,而寒武繫灰巖含水層存在2條通道,在不同灰巖含水層通道中,水流速度存在較大差異性,反映瞭其巖溶裂隙髮育非均勻性特點。此外,利用本次突水資料,計算灰巖含水層的參數。為工作麵底闆太原組灰巖水害治理提供依據。
위료사명신장자매광63301공작면1조매층저판회암함수층적돌수통도,분별종태원조회암、오도계회암함수층투방NaCl시종제,한무계회암함수층관측공투방KI시종제,재공작면돌수점간격채집양품。경측시분석기농도수시간변화관계곡선발현:저판태원조회암함수층중존재다조소통도화일조대통도,오도계회암함수층중존재다조소통도,이한무계회암함수층존재2조통도,재불동회암함수층통도중,수류속도존재교대차이성,반영료기암용렬극발육비균균성특점。차외,이용본차돌수자료,계산회암함수층적삼수。위공작면저판태원조회암수해치리제공의거。
In order to find out the water bursting channels in limestone aquifer under coal seam floor in working face 63301 of Xinzhuangzi coal mine, NaCl was adopted as the tracer and put into Taiyuan and Ordovician limestone aquifers. In the same case, KI tracer was put into observation wells in Cambrian limestone aquifer. Water samples were collected at intervals of the water inrush point at working face.63301. According to the curve of relationship between the concentration and time, the results of test and analysis indicate that there are many small channels and a large channel in the floor limestone aquifers of Taiyuan formation. Many channels are in Ordovician limestone aquifer, while Cambrian limestone aquifer has only 2 channels. The water flowing velocity in different limestone aquifer channel varies, showing the developmental heterogeneity of its karst fissures. Besides, limestone aquifer parameters are calculated with water inrush data. The above work provides an important reference for further study on the prevention and control of water hazards from Taiyuan limestone floor.