Results 51 to 60 of about 381 (161)
Based on the relationship between rockburst and microseismic event indicators, this study proposes that the risk of rockburst in mine working faces, roadways, and even the entire mine should be studied through the “double high” risk evaluation of ...
Xuelong Li +4 more
doaj +1 more source
Invisible Labor and the “Ghost Particle”: Underground Physics at the Kolar Gold Fields**
Abstract When cosmic rays—high‐energy particles from outer space—encounter the Earth's atmosphere, they produce particles called neutrinos. To detect them, physicists go underground inside deep mines where the overlying rock can filter out the cosmic‐ray background radiation.
Nithyanand Rao
wiley +1 more source
Rockburst, coal bump, and mine earthquake are the most important dynamic disaster phenomena in deep mining. This paper summarizes the differences and connections between rockburst, coal bumps and mine earthquakes in terms of definition, mechanism ...
Kun Du +4 more
doaj +1 more source
Dynamic impact failure test flow of bolted rock ABSTRACT Bolt support mechanisms represent a key technique to support the surrounding rock in coal mines. In deep rock engineering applications, the bolt‐supported structure of the surrounding rock of a deep roadway under high bearing stress may fail under dynamic loads such as those of blasting ...
Peng‐qi Qiu +8 more
wiley +1 more source
To address the substantial mining pressure from unstable rock formations, impact compression tests were performed on coal–rock combination specimens of varying strengths using a split Hopkinson pressure bar (SHPB). The dynamic mechanical properties, energy dissipation patterns, and failure modes of the specimens were systematically analyzed ...
Litong Dou +7 more
wiley +1 more source
Research on Stress Characteristics of Rockburst in Over-Length Deep-Buried Tunnel
As a unique geological hazard in a high-geo-stress environment, rockburst happens with strong suddenness, randomness, and destructiveness, but the mechanism of its occurrence in a deep-buried tunnel in a high-geo-stress environment needs further study ...
Chun Luo +5 more
doaj +1 more source
Mechanism of Vibration Energy Action on Dynamic Instability of Shock-Type Rockburst Carrier System
In coal mining, the rockburst intensity triggered by the mine earthquake is often greater in the mining area, and the precursor information is more difficult to capture.
Lyu Pengfei, Cui Xuekai
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The structural plane significantly changes the rock failure behavior. The connectivity of the structural plane generally varies for the rocks in different engineering practices or rock environments. In this manuscript, a series of direct shear tests on granite specimens are carried out using the true‐triaxial testing machine.
Xianzhe Liang +6 more
wiley +1 more source
Study on Deformation Characteristics of Surrounding Rock in Deep‐Buried Tunnels of Plateau Railroads
Regarding the deformation problem of surrounding rock in deep‐buried tunnels of high‐altitude railways, this article adopted a combination of numerical simulation and in situ monitoring analysis methods relying on a new plateau railroad tunnel. The deformation evolution law of tunnel surrounding rock under different burial depth conditions and its ...
Ziguang Zhang +7 more
wiley +1 more source
Rock lithology has a significant influence on rock failure. Different types of rocks generally exhibit various rock failure manners. Also, the microseismic (MS) generated during the failure process of different types of rocks will present different characteristics.
Kai Ye +5 more
wiley +1 more source

