本文選題：坡面流 + 底坡　； 參考：《水電能源科學》2017年04期

【摘要】：為了揭示坡面水力侵蝕過程中水流能量變化規(guī)律,進而為水土保持研究提供理論依據,利用變坡水槽在變化水深條件下的坡面流模擬試驗,分析了5種坡比及3種植被分布(植被走向與水流夾角15°、30°、45°)下坡面水流能量損失特征。結果表明,在相同植被分布條件下,沿程能量損失隨坡比增大而增大,隨水深增大而減小后趨于穩(wěn)定;相同坡比時,植被走向與水流夾角30°時沿程能量損失大于夾角45°的值,坡比0%、0.5%、1.0%時植被走向與水流夾角15°的沿程能量損失介于30°、45°之間,坡比1.5%、2.0%時其沿程能量損失最大;不同植被走向角的沿程能量損失隨水深增大變化趨勢相同。
[Abstract]:In order to reveal the variation law of water flow energy in the process of slope hydraulic erosion and to provide theoretical basis for the study of soil and water conservation, the simulation experiment of slope flow in variable slope flume under the condition of varying water depth was carried out.The energy loss characteristics of slope flow under five slope ratios and three planting distributions (vegetation strike and flow angle 15 擄/ 30 擄/ 45 擄) were analyzed.The results show that under the same vegetation distribution condition, the energy loss along the course increases with the increase of slope ratio, decreases with the increase of water depth, and then becomes stable with the same slope ratio, and the energy loss along the course is greater than 45 擄at 30 擄angle between vegetation strike and water flow at the same slope ratio.The energy loss along the slope is between 30 擄and 45 擄when the vegetation strike and flow angle is 15 擄, and the energy loss along the slope is the largest at the slope ratio of 1.5 and 2.0, and the energy loss along the course of different vegetation strike angles is the same with the increase of water depth.
【作者單位】： 山東科技大學地球科學與工程學院;
【基金】：國家自然科學基金項目(40971021,41471025) 山東省自然科學基金項目(ZR2014DM004)
【分類號】：TV131.6;S157
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本文編號：1769503