Shock and Vibration / 2020 / Article / Tab 3

Research Article

A New Method for Predicting Coal and Gas Outbursts

Table 3

Failure type in the C9 coal seam, initial velocity of gas emission, and firmness coefficient.

Coal seamOutburst parameter
Sampling siteFailure type of coal seamInitial velocity of gas emission, △PProtodyakonov coefficient, f

C9Return air roadway in the 121901 working faceV210.19
Transportation roadway in the 121901 working faceV230.18
connection roadway in the 121901 working faceV190.19

We are committed to sharing findings related to COVID-19 as quickly as possible. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. Review articles are excluded from this waiver policy. Sign up here as a reviewer to help fast-track new submissions.