[1]HU Xingding,BAI Zhongke,ZHANG Ling,et al.Hydraulic Erosion Calculation and Control in Dumping Site of Large Opencast Coal Mine in Loess Area[J].Research of Soil and Water Conservation,2017,24(05):21-26.
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Hydraulic Erosion Calculation and Control in Dumping Site of Large Opencast Coal Mine in Loess Area
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 05
Page number:
21-26
Column:
Public date:
2017-10-28
- Title:
- Hydraulic Erosion Calculation and Control in Dumping Site of Large Opencast Coal Mine in Loess Area
- Keywords:
- loess area; large opencast coal mine; dumping site; hydraulic erosion; water and soil erosion; soil erosion; control
- CLC:
- S157
- DOI:
- -
- Abstract:
- This paper describes the hydraulic erosion of the dumping site without reclamation that estimates the soil erosion amount on the spatial distribution of catchment area, soil bulk density, slope, and slope length for Antaibao opencast coal mine in loess area. Through on-the-spot sampling and data analysis based on statistical analysis platform, the gully erosion amount was calculated, and the relationship between soil erosion modulus with platform catchment area, soil bulk density, slope, and slope length were analyzed. The direct economic losses caused by water erosion in the study area was estimated, and prevention and control measures of dumping site reclamation and soil erosion were proposed. Some conclusions can be found as follows. (1)The hydraulic erosion is serious, and the total erosion modulus in study area is 6.8 times of natural area. (2) Dumping site platform surface soil is compacted and soil compaction within 40 cm is most serious, the deeper soil is relatively loose. (3) To a certain extent, dumping site platform slope and slope length can reflect the soil erosion degree which should be considered in the prevention and control measures of water loss and soil erosion. The results show that measures for reducing catchment area of platform, increasing the vegetation coverage and surface water infiltration capacity should be adopted with respect to dumping site reclamation and soil erosion prevention.
- References:
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