CAJ | 학술논문

三塘湖以北地区是新疆最近探明的主要煤田之一，在煤系地层之上覆盖有水量较丰富的新生界砂岩承压含水层，是煤田开发过程中重要的供水水源之一。本文提出含水层砂岩指数的概念，以三塘湖北煤田供水水文地质详查资料为基础，建立承压含水层砂岩指数与单井出水量的关系。结果表明：承压含水层砂岩指数与单井出水量间具有极显著的线性相关关系，砂岩指数预测单井出水量的相对误差一般小于50％，平均绝对误差仅7．59 m3/d，平均误差1．07％，拟合程度较高；宜井区（单井出水量＞500 m3/d）相对误差一般＜15％，拟合程度高。该成果对于今后宜井区承压含水层单井出水量的预测以及地下水开采井的合理布置具有重要的现实意义。
삼당호이북지구시신강최근탐명적주요매전지일，재매계지층지상복개유수량교봉부적신생계사암승압함수층，시매전개발과정중중요적공수수원지일。본문제출함수층사암지수적개념，이삼당호북매전공수수문지질상사자료위기출，건립승압함수층사암지수여단정출수량적관계。결과표명：승압함수층사암지수여단정출수량간구유겁현저적선성상관관계，사암지수예측단정출수량적상대오차일반소우50％，평균절대오차부7．59 m3/d，평균오차1．07％，의합정도교고；의정구（단정출수량＞500 m3/d）상대오차일반＜15％，의합정도고。해성과대우금후의정구승압함수층단정출수량적예측이급지하수개채정적합리포치구유중요적현실의의。
The northern area of Santanghu is one of the major coalfields which have been recently ascer -tained in Xinjiang .The coal-bearing stratum is covered with cenozoic sandstone confined aquifer .The ce-nozoic sandstone confined aquifer is one of the most important sources of water supply during coalfield de -velopment process .Based on detailed hydrogeological survey data of coalfield water supply in northern area of Santanghu, the paper propsed the concept of aquifer sandstone index (ASI) and set up the relation be-tween ASI of confined aquifer and water yield of single well .The results show that there is a significant linear correlation between ASI of confined aquifer and water yield of single well .When using ASI to predict water yield of single well , the relative error is generally less than 50%and mean absolute error and average error is 7.59 m3/d and 1.07%respectively .The fitting degree is higher .The relative error is generally less than 15%in suitable well area while the water yield of single well is more than 500 m3/d with very high fit-ting degree .The result has important practical significance for prediction of water yield of single well of confined aquifer in suitable well area and rational arrangement of groundwater extraction well .