Shock and Vibration / 2020 / Article / Tab 8

Research Article

A New Method for Predicting Coal and Gas Outbursts

Table 8

Initial critical value of gas desorption index K1 of drilling cuttings.

Coal samplesSampling siteInitial critical value of gas desorption index K1 of drilling cuttings (mL/g.min1/2)K1 relationship K1 = APB
AB

1Return air roadway in the 121901 working face0.620.72220.4948
2Transportation roadway in the 121901 working face0.690.80380.5122
32# connection roadway in the 121901 working face0.670.77290.4961

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.