摘要
作为节水灌溉工程的重要组成部分,渠道的防洪工作是相当主要的。在山丘地区以及跨流域引水灌溉的区域,渠道一般会沿着等高线分布,这样会横向穿越并割断很多天然路径的径流,并在渠道的上方留下汇流排水区,要排走这些汇流就要穿越渠道。所以,如果不及时排掉洪水并使其流量超越防洪设计标准的话,山洪便会进入渠道,造成不良后果。
Water-saving irrigation project as an important part of the work of flood control channel is a major. In the hill area and cross river diversion irrigation area, channel usually along the contour distribution, this will cross through and cut offa lot of natural runoffof the path, and on the top of the left channel confluence drainage area, to row away these confluence is through channels. So, if not timely row off flood and make its flow beyond the flood control standard of words, flash floods will enter the channel, cause undesirable consequence.
关键词
渠道
防洪
抢险
措施
channel
flood control
emergency rescue
measures