高庄井田煤与含水灰岩交互沉积带压开采探讨  

Discussion on Mining under Pressure in Alternatively Deposition between Coal and Water-bearing Limestone in Gaozhuang Coal Mine

作　　者：时鹏程 何鑫 魏文杰 谢玉洁 崔岩 SHI Pengcheng;HE Xin;WEI Wenjie;XIE Yujie;CUI Yan(Zaozhuang Mining Group Co.,Ltd.,Gaozhuang Coal Mining Co.,Ltd.,Weishan 277605,China;Shandong Province Sanhekou Coal Mining Co.,Ltd.,Weishan 277605,China)

机构地区：[1]枣庄矿业集团高庄煤业有限公司,山东微山277605 [2]山东省三河口矿业有限责任公司,山东微山277605

出　　处：《煤炭技术》2024年第9期78-82,共5页Coal Technology

摘　　要：鲁西南地区下组煤开采一直受石炭系和奥陶系灰岩含水层影响。16煤层是该地区高庄井田石炭-二叠纪月门沟群太原组(C_(2)P_(1)t)地层的主要可采煤层,与十_下灰等多个灰岩含水交互沉积。依据现有钻孔抽水资料分析灰岩含水层的富水性、水位等关键参数;根据隔水层的岩性组合、岩石的力学性质、岩层厚度等特征,评价其隔水性能;通过计算16煤开采的突水系数,划定带压开采条件下的16煤安全开采区域,并对具有一定灰岩水威胁的区域进行分析评价。本研究揭示了在煤层与灰岩含水层交互沉积情况下,煤层开拓、开采前对灰岩水分析研究与评价的思路和方法。The lower seam coal mining in the southwestern region of Shandong province has always been affected by the aquifers of Carboniferous and Ordovician limestone.In Gaozhuang coal mine,the No.16 coal seam can be mined in the Taiyuan formation of the carboniferous and permian Yuemengou group(C_(2)P_(1)t),which are interbedded with several limestone aquifers such as Tenth lower limestone.The key parameters such as water abundance and water level of the limestone aquifer are analyzed based on existing borehole pumping data,and the unique sedimentary relationship between coal and the limestone aquifer is studied.According to the lithology combination,rock mechanical properties,rock thickness and other characteristics of the aquiclude,the water barrier performance is evaluated.By calculating the water inrush coefficient of No.16 coal mine,the safe mining area of No.16 coal mine under pressure mining conditions is determined,and an analysis and evaluation of the areas with a certain threat of limestone water are conducted.This study reveals the thinking and methodology for analyzing and evaluating limestone water before coal seam development and mining in the case of alternatively deposition between coal seam and limestone aquifer.

关 键 词：灰岩含水层 交互沉积 突水系数 带压开采 

分 类 号：TD745[矿业工程—矿井通风与安全]