downmost-
It is proved by long & term monitoring of groundwater regime that the centerof falling funnel caused by mining moves downward to the downmost well of mining area be-cause both the groundwater table and the footwall of aquifer are dipped to lower reaches .
地下水动态长期监测资料证实，由于受潜水面天然坡度和含水层底板坡度的影响，水源地开采所形成的降落漏斗中心被下移到开采井区下边界附近，且为偏态漏斗。