地下水位下降 meaning in English
decline of water table
depression of water table
falling of water table
groundwater drawdown
groundwater lowering
groundwater recession
lowering of ground water level
lowering of ground water table
lowering of groundwater table
lowering of water table
phreatic decline
water lowering
Examples
- Sometimes the shortages are caused by too much water use , ground water levels fall , rivers get dyer and dyer
有时缺水问题是由于过量用水、地下水位下降、河流变的越来越干涸造成的。 - The decrease of precipitation and surface water and over - exploitation are the main reasons that result in groundwater level decline
降水和地表径流的减少以及地下水的严重超采是引起地下水位下降的主要原因。 - The ecological environment is fragile in jiuquan oasis , such as the desertification aggravating , the underwater table dropping , the meadow depredating etc . in order to solve these problems , the people ' s ideas must be changed in the agricultural production and management ; the animal husbandry must be developed energetically
酒泉绿洲生态环境脆弱，主要表现在沙漠化加剧，地下水位下降、草场退化等，其自然灾害频繁发生，转变农业经营理念，大力发展畜牧业成为解决这些问题的主要途径之一。 - How many pumps were turned on should be based on the dynamic design according to project target . and how many pumps should be in operation in standard shut off procedure . it was approved that although the theoretical boundary of decline of groundwater level is 10m , the actual boundary is only about 6m
提出了一些与真空预压加固地基设计相关的概念和处理方法，如定义真空预压加固区场地形状系数，提出按加固土体体积来确定射流泵数量、根据工程需要动态设计开泵量、增加停泵标准中对开泵量的规定等设计思想等，论证了真空预压加固地基时地下水位下降的理论极限深度为10m ，而实际极限深度约为6m 。 - The cause of vacuum degree formation under groundwater table is discussed in the paper . the testing results show that vacuum degree above the groundwater table is produced directly by pumping air , and that vacuum degree below groundwater table is produced mainly by dewatering and by escaping of sealed air from the end of flexible pipe . based on the bernoulli equation , the limit lowering of groundwater table is analyzed , which is about 5 ~ 7m . the effective influence depth of vacuum preloading has relationship with pvds depth and can be more than 10m
对地下水位线以下的真空度成因进行了分析，结果表明，地下水位线以下测到的真空度是由于测试软管中水位下降或部分封存气体从软管末端逃逸引起的，与地下水位线以上的真空度由抽气直接形成在成因上存在不同；根据伯努俐方程，对地下水位下降的极限深度进行了分析，得出真空预压中地下水位的极限下降深度为5 7m ；对有效影响深度的分析结果表明，真空预压的有效影响深度与塑料排水板的打设深度具备一定关系，有效影响深度可以超过10m 。