大流量低水头渡槽的水力计算和加大流量时的水面线推算  

Hydraulic calculation and water surface profile presumption for aqueduct with large discharge and lower head

作　　者：王云仓[1] 顾辉[2] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]水利部河北水利水电勘测设计研究院,天津300250

出　　处：《水利水电技术》2005年第4期60-61,共2页Water Resources and Hydropower Engineering

摘　　要：大流量低水头渡槽根据设计流量和给定水头确定过水断面后,通过加大流量时,渡槽内就会发生非均匀流,需对这种水流情况进行推算,以确定渡槽在通过加大流量时的水面线.而且,由此计算渡槽侧墙高度和结构荷载,确保渡槽的安全.So far as the aqueduct with large discharge and lower head is concerned, the non-uniform flow will occur in the aqueduct, when the discharge is enlarged after the water-carrying section being determined based on the design discharge and the given head; for which the flow condition must be presumed, so as to determine the water surface profile.Furthermore, the height of the sidewall and load on the structure are necessary to be calculated to guarantee the safety of the aqueduct.

关 键 词：渡槽 水头 大流量 水面线 水力计算 

分 类 号：TV133.1[水利工程—水力学及河流动力学]