Results 1 to 10 of about 135,213 (339)

Rock Burst and Actually Effective Bolting for Rock Burst Prevention

open access: yesГорные науки и технологии, 2019
Rock burst represents a very dangerous phenomenon in deep underground mining, as well as for underground structures in unfavourable conditions (great depth, high horizontal stress, proximity of major tectonic structures, etc.).
Ngoc Minh Nguyen, Duc Thang Pham
doaj   +3 more sources

Controlling Mechanism of Rock Burst by CO2 Fracturing Blasting Based on Rock Burst System

open access: yesShock and Vibration, 2020
Rock burst induced by mining is one of the most serious dynamic disasters in the process of coal mining. The mechanism of a rock burst is similar to that of a natural earthquake.
Tianwei Lan   +4 more
doaj   +2 more sources

Roadway rock burst prediction based on catastrophe theory. [PDF]

open access: yesSci Rep
AbstractIn order to quantitatively calculate the critical depth and critical load of mines affected by rock burst, and to achieve effective prevention and control of rock burst in coal mines, this paper proposes a mechanical model for predicting the occurrence of rock burst in coal mine roadways based on catastrophe theory.
Pan W, Shuan-Cheng G, Wei S.
europepmc   +4 more sources

Estimation of Rock Burst Grades Using Rock Mass Strength [PDF]

open access: yesAdvances in Civil Engineering, 2020
The traditional rock burst estimation method is usually based on the σc (rock strength) in practice, while the actual occurrence of rock burst depends more on the structure and strength of the rock mass. In this work, the actual rock bursts occurred in a
Yalei Wang   +3 more
doaj   +2 more sources

Failure mechanisms of energy redistribution in excavation roadways: experimental and numerical investigation [PDF]

open access: yesScientific Reports
The persistent occurrence of rock burst phenomena during roadway excavation poses a critical safety challenge in modern underground mining operations.
Yujie Peng   +5 more
doaj   +2 more sources

Rock burst risk evaluation based on equivalent surrounding rock strength

open access: yesInternational Journal of Mining Science and Technology, 2019
On-site investigations consistently show that the rock burst inherent to coal seams varies greatly with coal seam thickness. In this study, impact factors related to coal seam thickness and surrounding rock strength were analyzed and a corresponding rock
Jinglin Wen   +5 more
doaj   +2 more sources

Failure test and strength model of high-porous low-cementitious waste backfilling material

open access: yesMeitan kexue jishu, 2023
In order to alleviate the shortage of underground aggregate sources and time cost of vibration and compaction during backfilling, a new type of high-porous low-cementitious waste backfilling material (HPLCM), which was composed of self-compacting slurry ...
Chunyang CUI   +5 more
doaj   +1 more source

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