Results 31 to 40 of about 2,980 (208)

Study on the Support System Mechanism of Entry Roof with Roof Cutting Pressure Releasing Gob-Side Entry Retaining Technology

open access: yesAdvances in Civil Engineering, 2022
To improve the technical system of the roof cutting pressure releasing gob-side entry retaining technology (RCPRGERT) and provide reference for the adaptive promotion and optimization of the new technology, the entry support system mechanism with ...
Xingen Ma   +9 more
doaj   +1 more source

Mechanism and Control of Rockburst Induced by Draining Spatial Islands and Squaring

open access: yesGeofluids, 2022
A small-pillar gob-side roadway showed rockburst appearance during the mining of a gob-side working face located in the Shaanxi-Inner Mongolia mining area.
Yunhai Cheng   +4 more
doaj   +1 more source

Research on the type and occurrence mechanism and prevention of coal pillar rockbursts

open access: yesMeitan kexue jishu, 2023
Coal pillar rockburst is a typical type of rockburst occurring in coal mining in China in recent years. How to summarize the engineering scale damage characteristics of coal pillar rockburst, reveal the mechanism of rockburst instability and formulate ...
Xiufeng ZHANG, Yang CHEN
doaj   +1 more source

Influence of Cyclic Impact Loading and Axial Stress on Dynamic Mechanical Properties of Burst-Prone Coal

open access: yesShock and Vibration, 2021
High in-situ stress and frequent dynamic disturbances caused by the mining process in deep coal mines can easily induce dynamic disasters such as coal burst.
Shuang Gong   +3 more
doaj   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+5 more sources

Investigation on the pore characteristics of coal specimens with bursting proneness [PDF]

open access: yesScientific Reports, 2019
AbstractTo achieve further insight into the pore characteristics, the coal specimens with different bursting proneness before and after uniaxial compression failure are tested and compared in this paper. The data of mercury intrusion test is corrected by that of low-temperature nitrogen adsorption and desorption test (LTNAD). The pore size distribution
Li, Yutao   +5 more
openaire   +2 more sources

Electro‐Organic Synthesis at a Stable Oil/Water/Solid Three‐Phase Interface Reactor

open access: yesAngewandte Chemie, EarlyView.
A porous membrane electrode (PME) reactor is developed to promote oil/water/solid three‐phase interfacial contact for electro‐organic synthesis. By promoting the formation of an oil/water interfacial region within or near an amphiphilic catalytic layer, the reactor enables efficient conversion of water‐insoluble organic reactants in aqueous ...
Deyin Chen   +7 more
wiley   +2 more sources

Creep instability rock burst mechanism and prevention technology of isolated coal mass in roadways of high-stress thick coal seam

open access: yesYantu gongcheng xuebao, 2022
In view of the present situation of frequent rock burst appearances of isolated coal body in coal pillar areas of high-stress roadways without obvious mining disturbance, taking the coal pillar of the high-stress thick coal seam in the seventh mining ...
WANG Gao-ang 1, ZHU Si-tao 1, JIANG Fu-xing 1, LI Shi-dong 2, LIU Jin-hai 3, ZHOU Tao 2, NING Ting-zhou 4, LI Huan 2, KONG Zhen 2
doaj   +1 more source

Head-On Dynamic Manifestations in the Roadway Driving with Small Coal Pillar under the Influence of Roof Drainage: A Case Study from Uxin Banner

open access: yesGeofluids, 2022
In the Uxin Banner area of the Inner Mongolia Autonomous Region, mines that have experienced rock bursts have all been affected by the presence of confined water in the roof strata.
Yunhai Cheng   +4 more
doaj   +1 more source

A coal burst model based on roof vibration and coal slippage

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract Rock burst poses a serious threat to mining, and its mechanism still needs to be studied. Statistics show that more than 85% of rock bursts occur in mining roadways. The authors investigated the mechanism of rock burst in the roadways by creating a finite elastic long beam dynamic model in longwall mining based on the elastic ...
J Han, D Jia, C Cao, Z Zhu, Y Li
openaire   +1 more source

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