The 110 mining method, an emerging and innovative nonpillar longwall mining method, can
dramatically increase coal recovery rates and reduce entry accidents. One of the core …

Coal has dominated the energy structure in China for a long time. In recent years, dynamic
disasters such as rockbursts have affected the safety of coal mine in production with the …

Accurate evaluation of the influence range of borehole hydraulic fracturing (HF) in coal seam
is crucial for optimizing the design scheme of HF. In this study, we adopted the microseismic …

Hydraulic fracturing of coalbed methane wells has been widely practised as an effective
method to increase drainage efficiency in low-permeability, low-pressure and low-saturated …

One of the utmost severe mining catastrophes in underground hard rock mines is rock burst
phenomena. It can lead to damage to mine openings and equipment as well as trigger …

The controlled use of explosives for the purpose of introducing fractures to the rock material
in deep underground mining and tunneling activities is considered one of the tactical …

An increasing number of mines in China are being subjected to overall-instability-induced
(OII) rockbursts in extracting deep remnant island longwall panels, causing severe damage …

Accurate evaluation of the impact range of hydraulic fracturing (HF) in coal seams is the key
to optimizing HF design schemes. In this study, multistage HF processes in Well No. 1 of the …

Abstract Knowledge concerning the development and evolution of cross-scale
discontinuities, such as crevasses, joints, dikes, and faults, caused by crust movement and …

Coal mining in thick-hard roof areas leads to frequent high-energy seismicity and may even
induce coal–rock dynamic disasters such as rockburst. It is important to explore the focal …