在竖井或斜井凿井施工中，排水泵采用有底阀排水方式时，为了方便施工，水泵吸水管大多选用胶管。在以往的排水工作中，选用吸水胶管的原则是：吸水胶管的额定耐压值P（MPa）应与水泵排水的实际扬程H（m）相适应，即：P＞H／10.这是因为在施工中，因故障原因造成突然停电、停泵 In the shaft or inclined shaft shaft sinking construction, when the drainage pump adopts the bottom valve drainage way, in order to facilitate the construction, most of the pump suction pipes use the hose. In the past drainage work, the principle of using absorbent hose is: The rated pressure value of suction hose P (MPa) should be adapted to the actual head H (m) of the pump drainage, namely: P> H / 10. This is because During construction, a sudden power failure caused by fault causes pump stop