本文選題：滲管取水　切入點(diǎn)：滲透系數(shù)　出處：《西北農(nóng)林科技大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年11期 　論文類型：期刊論文

【摘要】：【目的】研究滲管取水工程中出水濁度的影響因素,為滲管取水工程設(shè)計(jì)提供依據(jù)。【方法】通過(guò)物理模型試驗(yàn),分析不同河床砂厚度(0.1,0.2,0.3,0.4,0.5和0.6m)在不同來(lái)水含沙量(0.5,1.0,1.5,2.0,2.5,3.0,4.0,5.0,10.0和15.0g/L)下對(duì)滲管取水出水濁度的影響�！窘Y(jié)果】當(dāng)來(lái)水含沙量一定時(shí),隨著河床砂厚度的增大,出水濁度逐漸減小;當(dāng)河床砂厚度一定時(shí),隨著來(lái)水含沙量的增大,出水濁度逐漸減小,其中以河床砂厚度0.1m、來(lái)水含沙量為0.5g/L時(shí)的出水濁度最大,為982.33NTU,以河床砂厚度0.6m、來(lái)水含沙量15g/L時(shí)的出水濁度最小,為2.30NTU。采用綜合滲透系數(shù)代替河床砂厚度進(jìn)行理論分析,建立了濾水料滲透系數(shù)、來(lái)水含沙量與滲管出水濁度關(guān)系的擬合公式。實(shí)例分析表明,所得擬合公式與試驗(yàn)數(shù)據(jù)及實(shí)際工程實(shí)測(cè)數(shù)據(jù)均符合較好�！窘Y(jié)論】滲管出水濁度的擬合公式可用于實(shí)際工程的指導(dǎo)。
[Abstract]:[objective] to study the factors affecting the turbidity of water outlet in the seepage pipe intake project, and to provide the basis for the design of the seepage pipe water intake project. [methods] through the physical model test, This paper analyzes the influence of different sediment thickness of different river bed on turbidity of outlet water from seepage pipe under different sediment content of 0.51.0 ~ 1.51.5U ~ (2. 0) ~ (2. 0) and 15.0g / L). [results] when the sediment content of incoming water is constant, the turbidity of outlet water decreases with the increase of sand thickness of riverbed. (3) the turbidity of effluent decreases gradually with the increase of sand thickness in the river bed, and the turbidity of outlet water decreases gradually with the increase of sand thickness in the river bed when the sediment thickness of the river bed is constant. The results show that the turbidity of the outlet water decreases with the increase of sand thickness in the river bed. When the sediment thickness of river bed is constant, the turbidity of effluent decreases gradually with the increase of sediment content in incoming water. The turbidity of effluent is the largest when the thickness of sand in river bed is 0.1 m and the sediment content of incoming water is 0.5 g / L. For 982.33 NTU, the turbidity of the effluent is the smallest when the bed sand thickness is 0.6 m and the sediment content of the incoming water is 15 g / L. the comprehensive permeability coefficient is used to replace the bed sand thickness for theoretical analysis, and the permeability coefficient of the filter water is established. A fitting formula for the relationship between sediment content in incoming water and turbidity of seepage pipe effluent. The fitting formula is in good agreement with the experimental data and the actual engineering data. [conclusion] the fitting formula of the turbidity of seepage pipe effluent can be used to guide the actual project.
【作者單位】： 石河子大學(xué)水利建筑工程學(xué)院;新疆巴音郭楞蒙古自治州水利局;新疆水利廳;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(11362019)
【分類號(hào)】：TU991.1

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本文編號(hào)：1630153