一种煤层开采过程顶板深孔爆破效果预评价方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2022-10-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for quantitatively evaluating the pressure relief effect of deep-hole blasting on the roof. They mainly rely on microseismic and ground acoustic detection at the engineering site, which is cumbersome and time-consuming, and cannot effectively guide the optimization of blasting measures.
Numerical simulation was used to pre-evaluate the effect of deep hole blasting in the roof using PFC software. The simulation results were analyzed to evaluate the pressure relief effect by calibrating microscopic parameters, establishing a two-dimensional mining area model, implementing blasting and monitoring the load on the hydraulic support.
It provides an economical and rapid pre-evaluation method, based on simulation results of real coal and rock parameters, to provide a basis for the scientific optimization of blasting measures and improve the accuracy of the pressure relief effect evaluation of deep hole blasting in the roof.
Smart Images
Figure CN115935599B_ABST