排水工作 meaning in English
drainage works
Examples
- It is important for drainage work since checks can be made on its effectiveness before planting .
排水工作很重要，因为在栽植前就可对其效果加以控制。 - Observe the site condition especially the south hidden creek area in any moment , arrange the dewatering and drainage according to the site actual condition and weather condition , ensure the successful construction
随时观察现场情况,重点是场地南侧的暗浜区域,根据现场实际情况和天气条件安排降水和排水工作,保证压桩安全,顺利地施工 - The lining of a tunnel in the area with high groundwater table does not bear high external water pressure in - normal , the surrounding rock reinforced by intrusion concrete does it . in the case , the groundwater through reinforced rock accumulated in the space between lining and rock must be drained in time
一般铁路隧道通过高水位富水区时，不用衬砌直接承受较高的外水压力，要实现这个设计目标必须做好衬背的排水工作，使通过加固圈渗透过来的水量及时排走，及时削减累积的水量。