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Coal Mine Roadway Excavation Advanced Support Equipment
Recent Patents on EngineeringCoal is an important chemical energy source, and it is still the basic energy source for human beings in the short term. At the present stage, human demand for coal resources is increasing, so coal mine production is of great significance. Among them, roadway excavation is an important part of coal mine production, and advanced support equipment is ...
Meichen Wu +6 more
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Research on Guided Roadway Pressure Relief Combined Supporting Technology in High Stress Roadway
Advanced Materials Research, 2014The problem of maintaining the surrounding rock in deep high-stress roadway has been a major subject in coal mining. The analysis of high stress roadway supporting mechanism, and the research on high stress roadway supporting technology as well as its adaptability have important significance in improving the support technology of mine.
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Determining the dimensions of combined supports in roadways
2011The predominant amount of European coal deposits exploited underground is extracted by the longwall method with controlled caving. Experience shows that roadways, which ensure all transport and ventilation in coalfaces, restrict both output and safety, as well as economy in coal production. The problem is urgent especially in deep mining.
P Kone_n_, R __upárek
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A Guidebook on Transit-Supportive Roadway Strategies
2016This report is a resource for transit and roadway agency staff seeking to improve bus speed and reliability on surface streets while addressing the needs of other roadway users, including motorists, bicyclists, and pedestrians.This guidebook (1) identifies consistent and uniform strategies to improve transportation network efficiency to reduce delay ...
Paul Ryus +4 more
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Supporting Method of Jinchuan Deep Roadway 1178 Sublevel
2009Deep roadway failure mechanism of Jinchuan is analyzed. The result shows that anchor cable should be used and more attention should be paid on the floor supporting. Several supporting methods are put forward combined with physical circumstance of deep roadway 1178 sublevel, failure mechanism and previous supporting experiences.
Chunli Yang, Yongcai Wang
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Discussion on Support Problems on Soft Rock Roadway
Advanced Materials Research, 2014Because of the rapid development of China's coal industry, the average depth of mine increase continuelly, the stress increases obviously, roadway are often difficult to support in many coal mine especially in soft rock. Soft rock have traits of low strength, expansion and rheology seriously, affect the safety of mine production and economic benefits ...
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