在施工条件复杂的情况下,用潜水泵排水会遇到很多困难。我单位在某筏型基础施工时,当混凝土浇筑完毕后突降大雨,基础垫层被基础梁隔成的30个开间内的积水深达70厘米。用潜水泵排水后,仍有20多厘米的水因潜水泵吸入空气而无法排出,用人工掏水也有困难,于是 In the case of complex construction conditions, the use of submersible pumps for drainage will encounter many difficulties. During the construction of a concrete foundation, our unit suddenly fell heavy rain when the concrete was poured, and the depth of the water in the 30 bays partitioned by the foundation beam was 70 cm deep. After draining with a submersible pump, there is still more than 20 centimeters of water that can’t be discharged due to the submersible pump sucking in air. It is also difficult to use artificial water to drown.