Near-natural remodeling method of open-pit coal mine dump slope based on wepp
A technology for open-pit coal mines and dumps, applied in design optimization/simulation, special data processing applications, etc., can solve the problems of declining topographic diversity, unstable topography, and easy damage to rigid engineering, to promote the restoration and improvement of the ecological environment. Soil and water conservation, the effect of reducing soil erosion
Inactive Publication Date: 2021-02-23
CHINA UNIV OF MINING & TECH
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Problems solved by technology
The large-scale man-made pads between platforms and slopes under the landform remodeling project in the existing mining area have decreased topographic diversity, unstable landforms, erosion of rock and soil on slopes, uncoordinated landscapes, reduced biodiversity, excessive human intervention, Rigid engineering is easy to damage and high maintenance cost
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[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] Near-natural remodeling is carried out on the slope of the dump site in the Shengli Mining Area, located 2 to 5 kilometers north of Xilinhot City, Xilin Gol League, Inner Mongolia Autonomous Region. The remodeling process is as follows: figure 1 As shown, it specifically includes the following steps:
[0032] S1. Extraction and analysis of topographic features of natural mountain slopes
[0033] S1-1. Topographic feature extraction of natural mountain slopes: select 30 samples of natural mountain slopes with different slope orientations and slope heights in the area adjacent to the dump site to be repaired (such as figure 2 As shown, the data source of DEM is the elevation data of GoogleEarth, the resolution is 6.8m×6.8m), and the ArcGIS operation platform is used to make statistics on the characteristic parameters of the col...
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The invention discloses a WEPP-based near-natural remodeling method of a waste-dump slope of an opencast coal mine. The method includes the following steps: natural-mountain-body-slope topographic-feature extraction; natural-mountain-body-slope topographic-feature analysis; waste-dump slope section design; soil composition design of a waste-dump slope surface layer; and construction of a waste-dump slope surface vegetation system. According to the method, through research, it is found that when slope height and curvature are unchanged, design of a slope surface contour can be optimized throughchanging proportions of a convex portion of the slope in horizontal and vertical directions, thus key positions of platform arrangement are quickly found, the arrangement number of platforms or obstacles is decreased, then an actual engineering construction amount is decreased, and project costs are saved. The method starts from a concept of near-natural remodeling, follows principles of landscape ecology, remodels the waste-dump slope according with watershed erosion characteristics of a region environment where the same is located, has great significance for promoting ecological environmentrestoration of a waste-dump slope region, and has a certain aesthetic value.
Description
technical field [0001] The invention belongs to the technical field of ecological restoration, and relates to a method for reshaping the landform of a large-scale open-pit coal mine dump in the eastern grassland area with a huge degree of human interference and an extremely fragile ecological environment, and in particular to a WEPP-based open-pit coal mine dump A near-natural reshaping method for slopes. Background technique [0002] Open-pit mining has violently disturbed the original landform landscape and hydrological system in the mining area, causing a series of serious land and environmental problems in the mining area. Land reclamation and ecological reconstruction have become an important measure to improve the ecological environment of abandoned mining areas, but they are easily affected by topography or topographic remodeling. The large-scale man-made pads between platforms and slopes under the landform remodeling project in the existing mining area have decrease...
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IPC IPC(8): G06F30/27
CPCG06F30/20
Inventor 雷少刚熊集兵黄云鑫黄纠程伟卞正富
Owner CHINA UNIV OF MINING & TECH