Research on Change of Hydraulic Head and Discharge through Orifice in Filter Underdrain System

滤池 配水系统中水头和孔口出流量的变化

Discussion on Change of Hydraulic Head in Large Resistance Underdrain System

大阻力 配水系统的水头变化问题探讨

On the basis of energy distribution in uniform discharge along porous pipe this paper analyzes the definition of efficient water head and discusses the change of hydraulic head in large resistance underdrain system .

从沿途泄流管道的能量分配出发，对其作用水头的确定进行了分析，并对大阻力 配水系统的水头变化进行了探讨。

Numerical simulation and application of construction process of underdrain beneath expressway

暗渠下穿高速公路施工过程的数值模拟及工程应用

Based on the hydraulics theory a research has been made on change of hydraulic head and discharge through orifice in filter underdrain system and some mistakes have been illustrated in reference .

运用水力学原理，对滤池 配水系统中水头和孔口出流量的变化进行了研究，并指出文献〔 1〕、 〔 2 〕、 〔3 〕对该问题的错误所在。

Safety Monitoring Design for New Underdrain of Luanhe-Tianjin Diversion Project

引滦入津工程新建 暗渠 段安全监测设计

Dewatering Technology for Underdrain Construction P. B construction . construction . Dewatering construction of silty clay layer

淤泥质粉质粘土层降 排水施工