川东褶皱带的上三迭系须家河组,砂岩与页岩相间,赋存砂岩裂隙层间水,钻孔多自流,开采利用方便,应该说是比较理想的地下水资源。但是,随着时间的推移,钻孔自流量逐渐减少,水头逐渐降低,开采影响漏斗不断发展,开采动态难以稳定,此现象 The Upper Triassic Xujiahe Formation in the East Sichuan Fold Belt, sandstone and shale interbedded with sandstone fissure interlayer water, drilling multi-gravity flow, easy exploitation, should be said to be an ideal groundwater resources. However, with the passage of time, the self-flow of boreholes gradually decreased, the water head gradually decreased, the development of mining-influenced funnels continued to develop, and the dynamic of mining was difficult to stabilize. This phenomenon