System for monitoring overlying roof rock and coal pillar of gob-side entry and method thereof
US12203374B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 29, 2024 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Aug 29, 2044 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C41/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and a method for monitoring overlying roof rock and coal pillar in gob-side entry are provided. The system includes top monitoring stations, coal pillar comprehensive monitoring stations, roof stress monitoring stations, and a master computer. Top monitoring stations are arranged in the crossheading to monitor the working face, coal pillar comprehensive monitoring stations are arranged in the upper roadway of the lower coal seam working face to monitor the coal pillars, and roof stress monitoring stations are arranged in the mining area main roadway to monitor the coal pillars. Monitoring the stress and deformation distribution of coal pillars in the goaf and the movement and failure process of overburden strata structure through the master computer control each monitoring station. The monitoring stations ensure that the overburden strata movement monitoring stations are still in working condition after the goaf is formed by mining in the working face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.