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Experimental study on Dewatering of Tunnel Construction in Loess

机译：黄土隧道施工脱水试验研究

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Due to the unreasonable dewatering scheme, the tunnel excavation was delayed for more than one year. In order to solve this problem, some pumping experiments were made. Moreover, the law of pumping rate and ground - water level reduces with pumping time- was summarized. On the basis of Tai-Si theory, dewatering calculated model was set up and the method of parameters settlement was advanced. In this case, the primary dewatering plan was revised and was very effective. Besides, the law of hydraulic jump with pumping time in various pumping rate was summarized and the reason was analyzed, which showed that the pumping rate was the main factor if the regional hydro geological condition and structure of wells are identical.
机译：由于不合理的脱水方案，隧道挖掘延迟了一年多。为了解决这个问题，制造了一些泵送实验。此外，总结了泵送时间和地面水位的规律 - 总结了泵送时间。在泰斯-SI理论的基础上，建立了脱水计算模型，参数结算方法进行了先进。在这种情况下，修订了主要脱水计划并非常有效。此外，总结了各种泵送速率的泵送时间的液压跳跃定律，分析了原因，显示泵率是井的区域水电地质条件和结构相同的主要因素。

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