Reconstruction method of soil in surface layer of open-pit mining waste dump

A technology for open-pit mining and surface soil, applied in surface mining, underground mining, special mining, etc., can solve problems such as water and soil erosion dumps, achieve the effects of dispersing runoff, preventing pooling and drilling, and avoiding landslides

Inactive Publication Date: 2010-03-03
山西省生物研究所
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for reconstituting the surface soil of the open-pit mining du

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reconstruction method of soil in surface layer of open-pit mining waste dump
  • Reconstruction method of soil in surface layer of open-pit mining waste dump
  • Reconstruction method of soil in surface layer of open-pit mining waste dump

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] When the surface layer of the top platform of the open pit mining dump is covered with soil, the cover truck is naturally loosely stacked in a triangular arrangement to form a basic micro-catchment unit with a concave-convex cone, which is uneven and does not roll. And on the top floor of the dump site, the entire platform uses a large grid grid and the platform edge is densely packed with soil ridges.

[0012] According to the general principles of hydrology, the calculation results of the above micro-catchment units show that the scattered runoff and infiltration reduction effects of pile-shaped ground are obvious, and the generation and collection of runoff can be effectively prevented during heavy rains, thereby avoiding concentrated water flow to a large extent Erosion of dumps. However, the volume of the micro-catchment unit (pit) formed by the conventional soil dumping method is not very large, and there is still the possibility of a small amount of concentrated wat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a reconstruction method of soil in a surface layer of an open-pit mining waste dump, and the method is as follows: when soil coverage of the surface layer of a platform at thetop of the open-pit mining waste dump is carried out, a soil covering vehicle carries out loose piling rather than grinding according to a certain arrangement way and ridges are set on the whole platform at the top of the waste dump by using a large-grid mesh and platform edges in the way of dense piling. The infiltration of the loose heaped soil of the surface layer and the accommodation of a concave region can not form a large amount of centralized runoff in heavy rain conditions, play the role of dispersing runoff and prevent convergence and heaping in seams of a large area of water flow.The loose heaped soil can absorb a large amount of rain water, store the rain water in the soil body and create the conditions for leading the platform of the waste dump to fast rehabilitate the vegetation; meanwhile, as the loose heaped soil can absorb and store the rain water, water can not flow downwards by the way of open flow, thereby avoiding the possible slope slide; in addition, the looseheaped soil further play the roles of automatically patching cracks due to settlement and soil sink holes of the surface layer.

Description

technical field [0001] The invention relates to the technical field of open-pit mining dumping methods, in particular to a method for reconstructing surface soil of an open-pit mining dump. Background technique [0002] Open-pit mining includes open-pit mining of coal, iron, copper, placer gold, oil shale and other metal and non-metallic mineral deposits. It refers to directly stripping the topsoil and rock strata overlying the mineral deposits to expose the mineral deposits before mining. Under suitable ore deposit and mining technology conditions, open-pit mining can achieve higher productivity and recovery rate at a lower cost than underground mining. With the development of large-scale special machinery, the open-pit mining industry has developed rapidly. For example, the current open-pit coal mining accounts for more than 30% of the world's total coal mining, and the proportion of other mineral deposits in open-pit mining is even higher. With the development of the eco...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E21C41/32
Inventor 白中科李晋川岳建英王金满赵中秋王文英柴书杰魏忠义赵景逵
Owner 山西省生物研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap