Identification method and coal mining method for water-preserved coal mining area of weathered bedrock aquifer

A water-retaining coal mining and identification method technology, applied in ground mining, earth drilling, underground mining, etc., can solve problems such as unsuitable for green mining of coal resources, poor protection of water resources and ecological environment, and variable lithology

Active Publication Date: 2022-01-28
LIUPANSHUI NORMAL UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional identification of water-retaining coal mining areas, the identification of weathered bedrock water-retaining coal mining areas has the following problems: 1) The types of ecological effects of weathered bedrock aquifers are complex, so comprehensive identification of various factors is required
2) Compared with the loose sand aquifer, the weathered bedrock aquifer has variable lithology, and its water holding capacity in the dry season is an important factor in the identification of water-retaining coal mining areas,

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
  • Identification method and coal mining method for water-preserved coal mining area of weathered bedrock aquifer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] The ecological environment of a mining area is fragile, water resources are scarce, but coal resources are abundant. Therefore, it is necessary to carry out water conservation coal mining work. In the past, only loose sand layers were studied, but later it was found that the weathered bedrock aquifer in the mining area is rich in water resources, and it is also an important water source for ecological and production and life supply. Conservation mining of weathered bedrock aquifers is required, but areas of conservation mining cannot be identified using conventional techniques. Therefore, the following identification method for water-retaining coal mining area in weathered bedrock aquifer is adopted, and the specific steps are as follows:

[0042] Step 1: Identify the stratum structure of the mining area that needs to carry out water-conservation coal mining, and divide the stratum structure of the mining area into different types. The specific process is as follows: u...

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 discloses an identification method and a coal mining method for a water-preserved coal mining area of a weathered bedrock aquifer, and the method comprises the following steps: carrying out the identification of a stratum structure of a to-be-mined area needing water-preserved coal mining, dividing the stratum structure of the to-be-mined area into different types, identifying the stratum structures of different types, and obtaining the weathered bedrock aquifer water-preserved coal mining area in each type of stratum structure. The essence of water-preserved coal mining is to protect water resources and ecological environment, and weathered bedrock is different from a loose sand bed and cannot provide a good soil environment for vegetation, so that a water-preserved area of a water-bearing layer of the weathered bedrock is not under the condition of direct damage of coal mining. According to the scheme, the weathered bedrock aquifer area to be protected can be accurately drawn, water resources and the ecological environment are protected while coal is mined, and the green mining of the coal resources is achieved.

Description

technical field [0001] The invention relates to a certain intersection between the field of geological engineering and the field of mining engineering, and in particular relates to an identification method and a coal mining method of a weathered bedrock aquifer water-retaining coal mining area. Background technique [0002] At present, in some areas, the contradiction between coal mining and water resources and ecological environment protection is prominent, so water conservation and coal mining must be carried out. The main target layer of traditional water-retaining coal mining is the loose sand layer. Since the loose sand layer is located at the top of the stratum and is directly related to the surface ecology, the areas where coal mining affects the water in the sand layer are water-retaining coal mining areas. In comparison, weathered bedrock is also an important water resource, but because it is not directly exposed to the surface, it is necessary to carry out identifi...

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): G01N15/08G01N33/24E21C41/18
CPCG01N15/08G01N33/24E21C41/18
Inventor 李涛范立民高颖孙魁
Owner LIUPANSHUI NORMAL UNIV
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