Results 81 to 90 of about 689,431 (233)

Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress

open access: yesAdvances in Civil Engineering, 2020
With the increase of mining intensity of coal resources, some coal mines in China have gradually entered the deep mining stage. The complexity of the stress environment of the deep rock stratum leads to the difficulty of coal mining.
Yang Yu   +5 more
doaj   +1 more source

Indicative assessment of design efficiency of mining roadways

open access: yesJournal of Sustainable Mining, 2018
The goal of the study was to develop a method for evaluating the design efficiency of roadways in coal mines. For this purpose, the AHP method (Analytic Hierarchic Process) was used to develop the significance of natural, geomechanical, mining and technical factors in the stability of roadways.
Zbigniew Niedbalski, Tadeusz Majcherczyk
openaire   +2 more sources

Anchor safety potential reinforcing theory and its applications in roadway affected by mining [PDF]

open access: yes, 2009
The roof collapse accident happens frequently in the mining affected roadway reinforced by anchors, which makes the roadway unsafe. Based on the damage analysis of roof strata, composite material mechanic rationale is adopted to deduce the calculating ...
Chun-jiang, Sun   +3 more
core   +1 more source

Surrounding rock control technology of preparation roadway under double-wing mining

open access: yesMeitan kexue jishu
Aiming at the problem of surrounding rock instability and serious deformation and failure of the preparation roadway in the double-wing mining area, which is affected by the mining superimposed support stress, the stress control technology of the ...
Kun WANG   +5 more
doaj   +1 more source

Roadway Safety Institute News (Summer 2016, vol. 3, no. 3)

open access: yes, 2016
Articles include: Research explores how road sign alternatives might affect driver safety; Institute teaches transportation concepts, safety to summer campers; Workshops highlight innovative applications of LIDAR; Researcher spotlight: Brian Davis; New ...
Roadway Safety Institute (RSI)
core  

Numerical simulation study on mining method for anti rock burst in different steeply inclined extra-thick coal seam

open access: yesMeikuang Anquan
This study takes the mining of B1+2 and B3-6 coal seams in the southern mining area of a steep and thick coal seam mine as the engineering background, and combines theoretical analysis and numerical simulation methods to compare and study the effects of ...
Zemin CHEN   +5 more
doaj   +1 more source

Evaluation of Anti-Burst Performance in Mining Roadway Support System. [PDF]

open access: yesSensors (Basel), 2023
Zhang R   +8 more
europepmc   +1 more source

Reservoir Modeling-Based Prediction And Optimization Of Ventilation Requirements During Development Mining In Underground Coal Mines [PDF]

open access: yes
During development mining, ventilation capacity may decrease and the ventilation requirements may depart from initially planned values depending on the mining rate, increases in the methane emission rate, and changes in ventilation airway leakages ...

core  

Study on the Deformation Mechanism of Soft Rock Roadway under Blasting Disturbance in Baoguo Iron Mine

open access: yesShock and Vibration, 2018
In order to study the deformation mechanism of soft rock roadway in underground mines, it is necessary not only to study the influence of the dynamic disturbance caused by the cyclic mining blasting vibration on the stability of the soft rock roadway but
Hong-di Jing, Yuan-hui Li, Kun-meng Li
doaj   +1 more source

Analysis Of Highwall Mining Stability - The Effect Of Multiple Seams And Prior Auger Mining On Design [PDF]

open access: yes
The objective of this is paper is to review the current state of knowledge and practice in highwall mining (HWM). HWM has become a widely-applied method in surface mining, commonly used alone or in conjunction with contour or slot mining. It provides 800-

core  

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