侏罗系弱胶含水层特征及首采区防治水方案研究  

Study on the characteristics of weak glue aquifer in Jurassic system and the water control scheme in the first mining area

作　　者：张凌鹏 ZHANG Lingpeng(The Second Institute of Geology and Mineral Exploration,Gansu Bureau of Geology and Mineral Resources,Lanzhou 730020,China)

机构地区：[1]甘肃省地质矿产勘查开发局第二地质矿产勘查院,甘肃兰州730020

出　　处：《中国矿业》2021年第S01期348-353,398,共7页China Mining Magazine

摘　　要：本文以新疆B区域X1井区侏罗系弱胶含水层为例,建立了含水层结构特征概念模型,设计了首采区防治水方案,主要采用地面疏降与井下疏降对地下水进行叠加疏降的方式。最后采用数值模拟模型对地下水流场演化预测分析,并选出32d、62d、200d流场演化进行预测效果分析,模拟出水位在观测点变化情况。研究结果表明,本文对侏罗系弱胶含水层的流场演化、地面疏降和井下疏降工程设计、模拟演化特征、整个疏降工作对首采面顶板水疏干的要求基本能满足。本文对我国西部地区侏罗系弱胶含水层的疏降工程可提供一定的指导价值。In this paper,the concept model of aquifer structure characteristics is established by taking the Jurassic weak glue aquifer in well X1 area of B area in Xinjiang as an example,and the scheme of water prevention and control in the first mining area is designed,mainly by the way of superposition of surface drainage and underground drainage.Finally,the numerical simulation model is used to predict the evolution of groundwater flow field,and the flow field evolution of 32 d,62 d and 200 d is selected to analyze the prediction effect,and the change of water level at the observation point is simulated.The results show that the flow field evolution,surface and underground drainage engineering design,simulation evolution characteristics and the requirements of the whole drainage work for the roof water drainage of the first mining face are basically satisfied.This study provides some guidance value for the drainage project of the Jurassic weak gel aquifer in the western region of China.

关 键 词：侏罗系 弱胶含水层 首采区 防治水 

分 类 号：TD745[矿业工程—矿井通风与安全]