水闸设计方案

1目录目录第第一、水力计算一、水力计算........................................................................................................................2一、闸孔设计............................................................................................................................2 1、闸室结构型式......................................................................................................................22、孔口尺寸的确定..................................................................................................................2 （1）拟定闸孔尺寸..........................................................................................................2 （2）复核过闸流量..........................................................................................................3二、消能防冲设计....................................................................................................................71、消力池的设计......................................................................................................................52、海漫的设计..........................................................................................................................53、防冲槽的设计......................................................................................................................5第二、防渗排水设计第二、防渗排水设计................................................................................................................5一、地下轮廓的设计................................................................................................................51、底板......................................................................................................................................62、铺盖......................................................................................................................................63、侧向防渗..............................................................................................................................6 4、排水、止水..........................................................................................................................65、防渗长度验算......................................................................................................................6二、渗流计算............................................................................................................................61、地下轮廓线的简化..............................................................................................................62、确定地基的有效深度..........................................................................................................63、渗流区域的分段和阻力系数的计算..................................................................................7 4、计算各段水头损失..............................................................................................................85、进、出口段水头损失修正..................................................................................................86、计算各角点或尖端渗压水头..............................................................................................97、绘制渗压水头分布图..........................................................................................................98、渗流出口平均坡降..............................................................................................................9第三、闸室第三、闸室..............................................................................................................................10一、闸室结构布置..................................................................................................................101、底板....................................................................................................................................102、闸墩....................................................................................................................................103、工作桥................................................................................................................................10 4、检修便桥............................................................................................................................11二、闸室稳定计算..................................................................................................................121、荷载计算............................................................................................................................132、稳定计算............................................................................................................................152水闸设计第 1、水力设计1、、闸孔设计闸孔设计1、闸室结构型式：开敞式水闸 2、孔口尺寸的确定 （1）拟定闸孔尺寸 1）设计洪水情况：上游水深：mH93. 330.2223.26下游水深：mhs76. 230.2206.25过水断面面积：21 .106193. 3270mHb上游行近流速：smQv/89. 11 .106120100有效水头：（其中）mgvHH11. 48 . 92 89. 193. 3222 0 00 . 1取，属于自由出流。

8 . 067. 011. 476. 20Hhs宽顶堰自由出流公式：，对于无坎宽顶堰，假设2302 HgBmQ385. 0m95. 0即m HgmQB00.149 11. 48 . 92385. 095. 02010223 23001  2）校核洪水情况上游水深：mH23. 430.2253.26下游水深：mhs21. 330.2251.25过水断面面积：21 .114223. 4270mHb上游行近流速：smQv/98. 11 .114222650有效水头：（其中）mgvHH33. 48 . 92 98. 123. 4222 0 00 . 1取，。