Results 51 to 60 of about 823 (175)
Energy Science &Engineering, Volume 14, Issue 8, Page 3726-3740, August 2026.This study determines the impact critical stress early‐warning indicators for deep soft coal seams: 18 MPa (shallow holes), 20 MPa (deep holes), and 3 MPa/d daily stress change rate, via theoretical, experimental and simulation methods. ABSTRACT The accurate determination of early‐warning indicators for critical impact stress in deep soft coal seams is
Haichen Yin +8 more
wiley +1 more source
Research and application of combined load-bearing shell support for deep soft rock roadway
Gong-kuang zidonghua, 2020 There are many influencing factors and complex conditions in deep soft rock roadway support. The theoretical research is still in the exploratory stage.
DUAN Changrui +4 more
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Meikuang Anquan, 2021 In view of the characteristics of low in-situ strength and poor integrity of surrounding rock of limestone roof roadway with soft clay interlayer, the internal causes of deformation and failure are discussed, and the reinforcement mechanism of “double ...
WANG Junhong, JIAO Jiankang
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Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway
Energy Science &Engineering, Volume 14, Issue 6, Page 2752-2771, June 2026.Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu +9 more
wiley +1 more source
Geofluids, 2022 In view of the problems of composite roof coal roadway under multiple dynamic pressure disturbances such as strong stratification, large deformation of the roadway surrounding rock, and poor safety and reliability, this paper analyzed the deformation and
Peng Wang +4 more
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Floor heave mechanism in water-rich soft rock roadways and a DS-IBA control approach
Geomatics, Natural Hazards & Risk, 2022 Severe floor heave in underground soft rock roadways heavily affects mine safety and production efficiency. In the present study, the context of the Shanghaimiao mining area is analyzed as the research object.
Wenli Zhai +5 more
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Energy Science &Engineering, Volume 14, Issue 6, Page 2772-2784, June 2026.A comparative study was conducted on gas desorption laws of raw and tectonic coals. The sensitivity of regional and local outburst prediction indexes was compared. Gas content is more sensitive than gas pressure for composite coal seams. K1 can more accurately predict the outburst danger than Δ h 2 in composite coal seams.
Haijun Guo +4 more
wiley +1 more source
Study of Floor Heave Mechanism in Deep Soft Rock Roadway
DEStech Transactions on Environment, Energy and Earth Science, 2017 Flac3D is utilized to study floor heave mechanism and propose corresponding solving method of floor bolt-grouting in roadways under 550m in Longmei company. In addition, Flac3D can perform the simulation of stress field and displacement field and plastic zone in order to improve rationality of the scheme.
Xiaoyu Zhang +3 more
openaire +2 more sources
Anti‐Slip Material‐Based Strategies and Approaches
Advanced Materials Technologies, Volume 11, Issue 10, 22 May 2026.This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani +3 more
wiley +1 more source
Geofluids, 2022 Based on the compound soft rock movement law, the rock formation structural features for a mining roadway were examined. Furthermore, the presplitting, extension, and coalescence mechanism of rock formation and the engineering needs for reusing an ...
Fuzhou Qi +5 more
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