Collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting
US11834949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2023 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Mar 3, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting provided by the disclosure includes the following steps: step 1, driving into a coal seam to release pressure; step 2, low roof pre-splitting during driving process; step 3, supporting of roadway surrounding rock and support reinforcement; step 4, floor destressing of the roadway; step 5, high roof pre-splitting before mining; step 6, destressing and supporting of the advanced roadway surrounding rock during the mining process of the working face. The collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting, and to carry out local pressure relief, roof pre-splitting and reinforcement support construction in the whole cycle of the coal working face in a progressive manner, so as to achieve the prevention and control of rock burst in the working face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.