Multi-information coupling prediction method of coal and gas outburst danger
US9417358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2012 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Jun 7, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F17/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed in the invention is a multi-information coupling prediction method of coal and gas outburst danger, which is achieved by establishing a multi-index coupling prediction model to detect indexes including original gas pressure of a coal layer, the original rock stress, the critical burst gas pressure of a coal sample, the mechanical performance of coal body, the exploit influence, the drilling cutting gas desorption index, the drilling cutting quantity index and the like, therefore to coupling predict the coal and gas outburst danger. By the multi-information coupling prediction method, the information of the coal and gas outburst danger can be fully complemented; the gas and crustal stress outburst danger prediction is carried out; the defects of insufficient complementation information of a single-index and inaccurate prediction are overcome; and the accuracy of the coal and gas outburst danger prediction is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.