Results 11 to 20 of about 359,370 (309)

Application of the Ultimate Hanging Arch Length of the Layered Roof with Anchors and the Gob-Side Entry Retaining

Shock and Vibration, 2021
The gob-side entry retaining plays an important role in improving working face ventilation, alleviating working face connection, and increasing mining revenue.
Peng Li, Xigui Zheng, Xiaowei Guo, Boyang Li, Cong Wang   +4 more
doaj   +1 more source

Coal mining and coal use: the European perspective [PDF]

The Lancet Planetary Health, 2019
n ...
Michele Emiliano, Barbara Valenzano, Ezio Andreta, Eduardo Missoni, Alessandro Distante, Giammarco Surico, Domenico Rossetti di Valdalbero, Prisco Piscitelli   +7 more
openaire   +3 more sources

BIOMONITORING OF ECOLOGICAL STATE OF THE ENVIRONMENT IN THE ZONE OF INFLUENCE OF THE “CHERVONOGRADSKA” MINE OF THE LVIV-VOLYN COALFIELD [PDF]

, 1999
Coal mining has a very negative impact on the environment and it requires monitoring studies to assess the degree of environmental ...
Dekorsy, T., Kurz, Heinrich, Nagel, Michael   +2 more
core   +1 more source

Application of satellite radar interferometry (PSInSAR) in analysis of secondary surface deformations in mining areas. Case studies from Czech Republic and Poland [PDF]

, 2018
Secondary deformations are ground movements occurring in areas of ceased underground mining. These are associated with delayed readjustment of rock mass resulting in subsidence, discontinuous deformations (sinks, cracks, etc.) due to destruction of ...
Blachowski, Jan, Jiránková, Eva, Kadlečík, Pavel, Lazecký, Milan, Milczarek, Wojciech   +4 more
core   +1 more source

Effect of Moisture on the Macro Failure Characteristics of Weakly Consolidated Mudstone: Mesomechanism

Geofluids, 2022
Mudstone, whose significant characteristic is water-weakening, widely exists in all kinds of geotechnical engineering, which brings great security risks to engineering safety.
Jiahui Xu, Guichen Li, Haoyu Rong, Mohamed Elgharib Gomah, Changlun Sun, Jinghua Li, Suhui Zhang   +6 more
doaj   +1 more source

Study on working resistance distribution of support and resistance increasing characteristics of support partition in longwall face with ultra-large length

Meitan kexue jishu, 2023
The effect of the increase of inclined length of fully mechanized mining face on roof breaking and stress evolution is complex, which leads to regional differences in the support characteristics of support in mining face.
Xingyu LIN, Gang XU, Xiaojin GAO, Zhen ZHANG, Qianjin LIU   +4 more
doaj   +1 more source

Overall requirements for an advanced underground coal extraction system [PDF]

, 1980
Underground mining systems suitable for coal seams expoitable in the year 2000 are examined with particular relevance to the resources of Central Appalachia. Requirements for such systems may be summarized as follows: (1) production cost; (2)miner safety;
Goldsmith, M., Lavin, M. L.
core   +2 more sources

Characteristics and mechanism of strong dynamic load mine pressure in large mining height full-mechanized caving face with multiple thick and hard roof

Meitan xuebao
In view of the problems of strong mine pressure such as rapid shrinkage of hydraulic support column and easy support crushing in working face under the fully mechanized caving face with large mining height in multi-layer thick and hard roof of extra ...
Zhen ZHANG, Zhizeng HUANG, GANG XU, Xiaogang LIU, Qianjin LIU, Tielin ZHAO, Xingyu LIN   +6 more
doaj   +1 more source

Response characteristics of mining-induced overburden strata under different degrees of regional fracturing on the roof

Meitan xuebao
To obtain the activity patterns and response characteristics of the overburden strata under different fracturing degrees of the roof, and thereby provide a reference for preventing and controlling roof-dominated rock burst through regional fracturing ...
Jianhong WU, Junfeng PAN, Meihua FENG, Chuang LU, Jiaming GAO, Yaodong YAN, Hongyuan MA   +6 more
doaj   +1 more source

An Enhanced Security Autonomous Control System for Unmanned Rubber-Tired Vehicles Operating in Underground Mines

Journal of Advanced Transportation
The operating environment in underground mines is complex and fraught with various hazards that pose severe risks to miners’ safety. As an essential auxiliary transportation device in mines, the operational safety and reliability of rubber-tired vehicles
Zhen Tan, Changzhong Ren, Yongjun Gao, Liang Gao, Baorui Jia, Yuan Nie, Ming Du, Ziyan Ma   +7 more
doaj   +1 more source