Results 121 to 130 of about 1,887 (217)

Combined gas drainage practice at upper corner of high-intensity fully mechanized caving face

Gong-kuang zidonghua, 2020
In view of traditional single upper corner gas control technology cannot effectively solve problem of severe over-limit of gas at upper corner of high-intensity fully mechanized caving face, taking Wangjialing Coal Mine as engineering background, the paper puts forward a scheme of combined gas drainage by use of upper corner inserted(buried) pipe and ...
openaire   +1 more source

Analysis of Ground Behavior Regularity of Fully Mechanized Face with Extra Thick Coal Seam

Gong-kuang zidonghua, 2011
The paper used methods of field strata control observation and RFPA numerical simulation to analyze and study ground behavior regularity of fully mechanized face with extra thick coal seam of easy spontaneous combustion in Gengcun Coal Mine.
REN Yong-kang, LI Bao-fu, WANG Fu-li
doaj  

The spatiotemporal evolution patterns of thermal environment in fully mechanized caving faces of deep mine

Thermal Science
With the increase in mine depth, the original rock temperature rises under the influence of the geothermal gradient. High temperature surrounding rock heat dissipation leads to an increase in working face temperature, seriously affecting mining production safety. Using distributed fiber optic temperature measurement to study the thermal characteristics
Shangming Liu, Li Ma, Gaoming Wei, Xixi Liu   +3 more
openaire   +1 more source

Theory and practice of integrated coal production and gas extraction [PDF]

, 2015
Liang Yuan
core   +1 more source

Report of activities of the advanced coal extraction systems definition project, 1979 - 1980 [PDF]

During this period effort was devoted to: formulation of system performance goals in the areas of production cost, miner safety, miner health, environmental impact, and coal conservation, survey and in depth assessment of promising technology, and ...
Isenberg, L., Lavin, M. L.
core   +1 more source

Study on Flow Field Evolution Law of Goaf in Fully Mechanized Caving Face and Gel Air Leakage Blocking Technology under Withdrawal Condition. [PDF]

ACS Omega
Xie S, Dong C, Liu X, Li L, Wang G, Hao R.   +5 more
europepmc   +1 more source

Simulation and Field Measurement Study on Roof Strata Behavior of Fully Mechanized Caving Face [PDF]

Proceedings of the 8th Russian-Chinese Symposium "Coal in the 21st Century: Mining, Processing, Safety", 2016
Wang Jianning, Song Wencheng, Liu Weitao
openaire   +1 more source

Study on the characteristic of overburden rock structure and support system of the retraction channel in layered fully mechanized caving face. [PDF]

Sci Rep
Song W, Yu S, Rong H, Jiao H, Xu X.
europepmc   +1 more source

Simulation on Harmful Gas Control by Balanced Pressure Ventilation in the Fully Mechanized Caving Face under Sealed Fire Area of Small Coal Mine. [PDF]

ACS Omega
Fan C, Sun H, Yang L, Xiao B, Xu L.
europepmc   +1 more source

Optimization of drawing parameters based on top-coal flow law in thick-seam caving mining. [PDF]

Sci Rep
Wu S, Xu X, Wang J, Kong D, Wu G, Liu Q, Zuo Y.   +6 more
europepmc   +1 more source