ISWC OpenIR  > 水保所知识产出(1956---)
神府煤田弃土弃渣体坡面流速及其影响因素试验研究
董玉锟1; 王文龙2,3; 黄懿梅1; 欧阳朝波2
2016
Source Publication水土保持通报
Volume36Issue:4Pages:148-151
Abstract

[目的]研究弃土弃渣体坡面流速变化规律及砾石含量、坡度、放水流量、含沙量对坡面流速的影
响,为揭示弃土弃渣体侵蚀机理提供科学依据。[方法]采用野外放水冲刷试验方法研究神府煤田弃土弃
渣坡面流速。[结果]弃土弃渣体在不同放水流量下平均流速随产流历时会在一定的范围内波动,表现为
多谷多峰的特点,而且随放水流量增大,断面内平均流速波动程度增强。弃土弃渣体坡面流速与弃土弃渣
体中砾石含量、放水流量及含沙量均呈显著的幂函数关系,与坡度呈显著的二次函数关系。逐步回归分析
表明,砾石含量和放水流量的共同作用对弃土弃渣体坡面流速的影响最为显著。[结论]弃土弃渣体坡面
流速变化复杂,砾石含量和上方来水是影响流速的最关键因素。

Other Abstract

[Objective]The slope flow velocity in abandoned dreg site and the effects of gravel content,slope
gradient,water flows discharge,and sediment concentration on it were demonstrated to provide scientific reference
for revealing the erosion mechanism on dreg site.[Methods]Field scouring experiment was carried
out to study the velocity of residue slop in Shenfu Coalfield.[Results]Results showed that flow velocity experienced
fluctuated processes within a certain range on all flow discharge conditions.The velocity along discharge
time was multi-valley multimodal,and its fluctuation range observed in flow sections increased with
the increase of discharge amount.Power function could be used to describe the relationships between flow velocity
and the influence factors,including gravel content,flow discharge and sediment concentration.Quadratic
power function could express the relationship between velocity and slope gradient.Stepwise regression
analysis showed both flow discharge and gravel content significantly influenced flow velocity.[Conclusion]
Variation of flow velocity on abandoned dreg slope was complicated.Gravel amount and upstream catchment
area were two key factors influencing flow velocity.

Keyword弃土弃渣 坡面流速 坡度 放水流量 含沙量
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8757
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学资源环境学院
2.土壤侵蚀与旱地农业国家重点实验室
3.中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
董玉锟,王文龙,黄懿梅,等. 神府煤田弃土弃渣体坡面流速及其影响因素试验研究[J]. 水土保持通报,2016,36(4):148-151.
APA 董玉锟,王文龙,黄懿梅,&欧阳朝波.(2016).神府煤田弃土弃渣体坡面流速及其影响因素试验研究.水土保持通报,36(4),148-151.
MLA 董玉锟,et al."神府煤田弃土弃渣体坡面流速及其影响因素试验研究".水土保持通报 36.4(2016):148-151.
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