A method for alleviating stope pressure based on the principle of key layer reconstruction
A key layer and rock pressure technology, applied in ground mining, mining equipment, underground mining, etc., can solve the problems of frequent mine pressure accidents in the stope, achieve the effect of slowing down the degree of appearance, reasonable design, and strong operability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0122] The first step on-site research and laboratory experiments
[0123] like Figure 4 As shown in the on-site investigation, the 1101 working face of a mine in the west is mainly mining 3# coal seam, with an average thickness of 4m, the overlying rock layer is a soft rock layer with a thickness of 35m, the size of the working face is 150m×100m, and the fracture angle of the rock layer is 10°; The rock formation rotation angle θ is taken as 20°; the fracture length a of the key layer to be reconstructed is taken as 14m; the grouting loss coefficient λ is taken as 1.1; the slurry filling rate ε is taken as 0.75; the slurry solidification rate m is taken as 0.85; , take 1500m 3 / h; Influence coefficient Δ of grouting pipe diameter, take 1.2 to 1.5.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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