Study of Rock Burst Risk Evolution in Front of Deep Longwall Panel Based on Passive Seismic Velocity Tomography

Figure 6

Rock burst risk zones and future seismic events. (a) Burst risk zones on 30 April 2019 and seismic events from 1 to 30 May 2019. (b) Burst risk zones on 31 May 2019 and seismic events from 1 to 30 June 2019. (c) Burst risk zones on 31 July 2019 and seismic events from 1 to 31 August 2019. (d) Burst risk zones on 15 September 2019 and seismic events from 16 to 30 September 2019. (e) Burst risk zones on 15 October 2019 and seismic events from 16 to 31 October 2019. (f) Burst risk zones on 15 December 2019 and seismic events from 16 December 2019 to 15 January 2020. (g) Burst risk zones on 31 January 2020 and seismic events from 1 to 15 February 2020. (h) Burst risk zones on 29 February 2020 and seismic events from 1 to 15 March 2020.