Hydrodynamics of Water Flows from Disturbed Lands by Exploitation of Shenfu一Dongsheng Coalfield

WANG Zhen; WANG Wen-long; LUO Ting; WANG Hao; JIN Jian

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Hydrodynamics of Water Flows from Disturbed Lands by Exploitation of Shenfu一Dongsheng Coalfield

- Hydrodynamics of Water Flows from Disturbed Lands by Exploitation of Shenfu一Dongsheng Coalfield
- Bulletin of Soiland Water Conservation Vol. 30, Issue 2, Pages: 42-45(2011)
- 作者机构：
  
  1. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室
  2. 西北农林科技大学
  3. 福建农林大学
  4. 黄河水利委员会西峰水土保持科学试验站
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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WANG Zhen, WANG Wen-long, LUO Ting, et al. Hydrodynamics of Water Flows from Disturbed Lands by Exploitation of Shenfu一Dongsheng Coalfield[J]. Bulletin of Soiland Water Conservation, 2011, 30(2): 42-45.
DOI：

WANG Zhen, WANG Wen-long, LUO Ting, et al. Hydrodynamics of Water Flows from Disturbed Lands by Exploitation of Shenfu一Dongsheng Coalfield[J]. Bulletin of Soiland Water Conservation, 2011, 30(2): 42-45. DOI：

摘要

神府东胜煤田开发建设过程中造成了大量的扰动地面

形成了新的人为水土流失。采用野外放水冲刷实验

对人为扰动地面水流的水动力学参数进行了系统研究。结果表明

流速与放水流量呈幂函数关系

在上、中、下3个断面上呈先增大后减小的变化规律;水流流态属于紊流

雷诺数与放水流量呈幂函数关系;弗劳德数值在0.59～0.88之间

Fr<1

水流属于缓流;阻力系数随坡度增加而增大;水流剪切力和水流功率分别与放水流量呈幂函数关系

并随坡度增加而增大。

Abstract

The exploitation of the Shenfu-Dongsheng coalfield caused a large amount of disturbed lands

leading to anthropogenic soil and water loss.In this study

we investigated hydrodynamic features of the water flows through carrying out scouring experiments in the field.The results indicate that the relationship between the velocity of flow and the discharge could be well described by a power function.The flow velocities increased firstly from the upper section to the middle and then decreased from the middle section to the bottom section on the slope.The state of the flow was turbulent flow

suggested by a power function between the Reynolds number and the discharge.The values of the Froude number varied between 0.59~0.88

resulting in subcritical flows.The resistance coefficients increased with the slope gradients.The relationship between the flow shear stress and the discharge followed a power function

same as the relationship between the flow powers and discharges.They both changed great with the slope changing great.

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Related Institution

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A & F University, Yangling

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

Key Laboratory of Soil Erosion and Control, Jiangxi Institute of Soil and Water Conservation

Zhejiang Design Institute of Water Conservancy and Hydroelectric Power

HydroChina Huadong Engineering Corporation

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