Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for determining curtain under complex aquifer condition

A determination method, curtain technology, applied in the direction of measuring devices, suspension and porous material analysis, scientific instruments, etc., can solve the problems of high safety risk, poor reliability, difficult construction, etc., to improve the interception rate, ensure stability, Improve the effect of interception effect

Pending Publication Date: 2021-07-02
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for determining the position and parameters of the curtain under complex aquifer conditions, which solves the problem of water damage prevention and control under complex aquifer conditions in the prior art, and overcomes the difficulty in construction and poor reliability of the simple dredging method in the prior art. High security risks and technical issues not addressed by conventional curtains

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
  • Method for determining curtain under complex aquifer condition
  • Method for determining curtain under complex aquifer condition
  • Method for determining curtain under complex aquifer condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0079] In the north wing of a well field in Huaibei, there is a deep buried, extremely thick and extremely strong aquifer mainly composed of limestone gravel and breccia—the Jurassic bottom conglomerate (commonly known as the five containment), and the four containment is under the unconformity of the overall angle. V all strata. There is an extremely close hydraulic connection between Wuhan, Sihan and Tai'ao ash aquifers. In a certain year, a five-contained water and sand intrusion accident occurred in a certain mine working face of the mine field, causing heavy losses. The five-contained water damage has seriously threatened the safe mining of the underlying coal, and the problem of five-contained water damage needs to be solved urgently. The conditions of the five aquifers meet the requirements of complex aquifers. After repeated research and demonstration, the curtain closure green mining comprehensive treatment project was finally formulated.

[0080] This embodiment pro...

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 a method for determining a curtain position and parameters under a complex aquifer condition, which comprises the following steps of: firstly, determining a curtain construction position according to a curtain position selection principle, and then respectively determining the length, the height and the effective width of a curtain according to a corresponding curtain parameter calculation formula; and finally, further correcting and optimizing the curtain parameters through the permeability coefficient of the curtain engineering test. Compared with an existing experience construction method, the curtain position and parameters obtained through the method are more reasonable and reliable, the curtain closure requirement under the complex aquifer condition is met, and quantitative design of the curtain position and parameters under the complex aquifer condition is achieved.

Description

technical field [0001] The invention belongs to the technical field of water prevention and control in coal mines, and in particular relates to a curtain determination method under complex aquifer conditions. Background technique [0002] Curtain closure technology is a method of using drilling and grouting to construct curtains and intercept groundwater in mining areas. After years of practice and development, the curtain closure technology of grouting in mining areas in my country has gradually matured, but it is similar to the conditions of huge thick, complex media, and high pressure aquifers. There is no way to determine the design position and parameters of the lower curtain. [0003] Aiming at the water disaster control under the above complex conditions, the existing methods have the following problems: [0004] 1) If the area is directly dewatered, a huge and stable supply will be formed under dynamic water conditions, which is difficult and costly; [0005] 2) The...

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): G01N15/08
CPCG01N15/08
Inventor 郑士田王海军石志远姬亚东刘泽威石磊王世东曹海东崔思源
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com