【摘要】：利用異重流排沙是控制水庫泥沙淤積和避免水庫渾水現(xiàn)象的一種有效手段,但是目前對(duì)水庫水溫分層環(huán)境下的情況卻鮮有研究�；谧匀凰疁胤謱拥姆謱幽Ｐ退畮煅芯�,分別在入流量為0.08~0.64 m~3/h、入流泥沙濃度為1.25~7.5 g/L和泥沙粒徑為0.01 mm的條件下,進(jìn)行了一系列分層水庫異重流的中試研究,測(cè)定了水庫中5個(gè)斷面、6個(gè)運(yùn)行時(shí)間下的垂向泥沙濃度分布,系統(tǒng)分析了其變化特性和影響因素。對(duì)于固定工況,定義出水口斷面處泥沙濃度不低于10%最大濃度(≥10%C_(max))的位置為適宜排沙口位置。中試結(jié)果表明,在躍溫層溫度梯度為41~48℃/m的分層條件下,入流量和泥沙濃度均能影響水庫內(nèi)異重流的主要挾沙范圍及適宜排沙口的位置。水庫內(nèi)最大泥沙濃度隨入流量和泥沙濃度的增大而增大,其主要挾沙范圍亦隨之?dāng)U大,異重流排沙口的適宜垂向位置下移。
[Abstract]:The use of different heavy flow sediment discharge is an effective means to control reservoir sediment deposition and avoid reservoir muddy water phenomenon, but at present, there are few studies on the situation of reservoir water temperature stratification environment. Based on the study of layered reservoir with natural water temperature stratification, a series of pilot-scale studies of different heavy flow in layered reservoir were carried out under the conditions of inflow flow of 0.08 鈮，

本文編號(hào)：2510730