CAJ | 학술논문

通过分析峰峰矿区煤矿开采前后的岩溶地下水水化学特征，煤矿开采造成岩溶水的水化学特征发生了较大程度的改变。相对煤矿开采前，目前的岩溶水具有较高的Na＋＋K＋、M g2＋、SO2－4和矿化度值；水化学类型，补给来源和水动力特征明显复杂化和多样化；水质明显恶化，人为污染突出；原有的水流系统遭到破坏，由复杂化的水流系统演变呈单一水流系统，强径流带已消失，中等径流带和弱径流带发育；水流速率明显变慢，水力梯度加大；矿物溶解能力增强，增加了更多白云岩矿物的溶解；重金属元素检出率和检出浓度也明显增多；岩溶水与各含水层间水力联系加大，开始接受煤系基岩水、孔隙水和河水的反向补给。
통과분석봉봉광구매광개채전후적암용지하수수화학특정，매광개채조성암용수적수화학특정발생료교대정도적개변。상대매광개채전，목전적암용수구유교고적Na＋＋K＋、M g2＋、SO2－4화광화도치；수화학류형，보급래원화수동력특정명현복잡화화다양화；수질명현악화，인위오염돌출；원유적수류계통조도파배，유복잡화적수류계통연변정단일수류계통，강경류대이소실，중등경류대화약경류대발육；수류속솔명현변만，수력제도가대；광물용해능력증강，증가료경다백운암광물적용해；중금속원소검출솔화검출농도야명현증다；암용수여각함수층간수력련계가대，개시접수매계기암수、공극수화하수적반향보급。
By studing on the hydrochemistry of karst groundwater before and after mining activities in Fengfeng coal mining area ,The paper found out that the characteristics of hydrochemistry had been significantly changed .Firstly ,the contents of Na+ + K+ 、Mg2+ 、SO2 -4 and the mineralization in the karst groundwater were more higher than the pre-mining periods .Secondly ,besides the hydrochemistry type ,the recharge source and hydrodynamic features had become more complicated and diversified .Thirdly ,water quality becoming deterioration and human contamination had been getting stronger .Fourthly ,the original flow system had been disturbed ,which was turning the complex flow system into a simple one .Finally ,the strong runoff zone had been vanished , while the middling and week runoff zone well developed . Groundwater velocity had become significantly slowly , hydraulic gradient become higher ;the mineral capacity dissolved more dolomites ;heavy metals detection rate and concentration more increased and hydraulic connection closed .Karst groundwater had been receiving reverse recharge from bedrock ,pore and river w ater .