水电站生态流量中的河道地下水补给需水计算

发布时间：2018-05-17 11:46

本文选题：地下水补给需水 + 河道　；参考：《水力发电》2017年08期

【摘要】：大坝建设拦断河流,可能造成下游减脱水,减脱水河道内要产生地表径流,首先应满足河道地下径流的补给需水要求。即首先将河道地下孔隙充满,地下水位抬升至河道表面,而地下水处于流动状态,是一个动态平衡过程。就NB/T 35091—2016《水电工程生态流量计算规范》中河道地下水补给需水计算部分,建立了一套河道地下水补给需水定量计算流程和方法,以马马崖一级水电站为例,进行了试算,可作为相关计算和研究的一个参考和借鉴。
[Abstract]:Dam construction and blocking of rivers may result in the downstream dewatering. In order to produce surface runoff in the dewatering channel, first of all, the recharge water requirement of the river channel underground runoff should be satisfied. That is to say, it is a dynamic equilibrium process to fill the underground pores and raise the groundwater level to the surface of the river, and the groundwater is in a flowing state. According to NB/T 35091-2016 "Ecological discharge calculation Code for Hydropower Engineering", a set of quantitative calculation flow and method for groundwater recharge of river channel is established. Taking Ma-ya Grade I Hydropower Station as an example, a trial calculation is carried out. It can be used as a reference for related calculation and research.
【作者单位】：中国电建集团贵阳勘测设计研究院有限公司;河海大学地球科学与工程学院;
【分类号】：TV213.4

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