Results 121 to 130 of about 689,431 (233)

Non-Pillar Coal Mining by Driving Roadway During Mining Period in High-Gas Top-Coal-Caving Working Face

To solve the problem of the inability to achieve Y-shaped ventilation in the boundary coal mining of high-gas mines and the problem of gas accumulation in the upper corner of a fully mechanized mining face, non-pillar coal mining technology is proposed ...
Yong Yuan, Zhongshun Chen, Bo Li, Haisheng Shen, Samuel Kofi Anamor   +4 more
core   +1 more source

Technical Services Branch, Traffic-Roadway Section

, 2013
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Mode of access: Internet from the Oregon Government ...

core  

The Rate of Convergence in Roadways of Coal Mine and the lnfulence Caused Roadways by it

Journal of the Mining Institute of Japan, 1967
openaire   +2 more sources

Study on the rational position of externally offset mining roadway in the lower split during layered mining of a thick coal seam. [PDF]

Sci Rep
Chen X, Liu Y.
europepmc   +1 more source

Evaluation of R1-6 gateway treatment alternatives for pedestrian crossings : follow-up report : final report.

DTRT13-G-UTC35Monthly follow-up data confirmed that permanent in roadway installations of the R1-6 gateway treatment led to anincrease in the percentage of drivers yielding to pedestrians at midblock and multilane urban and suburban locationsfrom 15% to ...
Van Houten, Ron, Western Michigan University, Hochmuth, Jonathan   +2 more
core  

Study on reasonable position of mining roadway under repeated mining overburden structure in shallow buried close distance coal seam: A case study. [PDF]

Sci Rep
Miao K, Tu S, Tu H, Tang L, Zhao H, Guo B, Lv K, Ma Y.   +7 more
europepmc   +1 more source

Research on active advance support technology of mining roadway under hard roof condition. [PDF]

Sci Rep
Li Y, Hu D, Zhao J, Kong P, Yang Z, Cai H.   +5 more
europepmc   +1 more source

Energy driven mechanism of surrounding rock deformation and failure of mining roadway and classified control technology. [PDF]

Sci Rep
Liu X, Zhang Y, Fan D, Zhao Y, Gao Y, Pei H, Shi Z.   +6 more
europepmc   +1 more source

Roadway Safety Institute News (Fall 2015, vol. 2, no. 4)

, 2015
Articles include: Strategic safety plan sets direction for state efforts; Examining how drivers adapt to safety systems designed to help them; Helping people with visual impairment find their way; Researcher Spotlight: Daniel Work; Researcher Spotlight ...
Roadway Safety Institute (RSI)
core  

Non-uniform failure mechanism and stability control of mining roadway under deviatoric stress field. [PDF]

Sci Rep
Huo T, Liu H, Fu S, Fu B, Wang S.
europepmc   +1 more source