Plugging and draining device for bottom of deep foundation pit

The utility model discloses a deep foundation pit bottom plugging drainage device which comprises a water storage cover, a water drainage pipe arranged at the top of the water storage cover and a water pump arranged at the top of a deep foundation pit, the water storage cover covers a pit bottom water drainage point, sealing filler is filled between the peripheral side of the water storage cover and a rock wall of the deep foundation pit, and the bottom of the water drainage pipe extends to the bottom of the water storage cover. A water pumping pipe is connected between the water pump and the drain pipe. The deep foundation pit bottom plugging and draining device is simple in structure, good in bottom sealing effect and capable of pumping and draining pit bottom water in time. 本实用新型公开了一种深基坑坑底封堵排水装置，包括存水盖、设于存水盖顶部的泄水管和设于深基坑顶部的水泵，存水盖覆盖于坑底漏水点位上，存水盖的周侧与深基坑的岩壁之间填设有密封填料，泄水管底部伸至存水盖的底部，水泵与泄水管之间连接有抽水管。本深基坑坑底封堵排水装置结构简单、封底效果好以及能够及时抽排坑底水。