Zobrazeno 1 - 6
of 6
pro vyhledávání: '"D. F. Gearhart"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 1, Pp 103-110 (2021)
Longwall gateroad entries are subject to changing horizontal and vertical stress induced by redistribution of loads around the extracted panel. The stress changes can result in significant deformation of the entries that may include roof sag, rib dil
Publikováno v:
International journal of mining science and technology
International Journal of Mining Science and Technology, Vol 29, Iss 1, Pp 27-33 (2019)
International Journal of Mining Science and Technology, Vol 29, Iss 1, Pp 27-33 (2019)
Roof falls in longwall headgate can occur when weak roof and high horizontal stress are present. To prevent roof falls in the headgate under high horizontal stress, it is important to understand the ground response to high horizontal stress in the lo
Publikováno v:
International Journal of Mining Science and Technology, Vol 28, Iss 1, Pp 43-51 (2018)
International journal of mining science and technology
International journal of mining science and technology
A comprehensive monitoring program was conducted to measure the rock mass displacements, support response, and stress changes at a longwall tailgate entry in West Virginia. Monitoring was initiated a few days after development of the gateroad entries
Autor:
Ted Klemetti, Gabriel S. Esterhuizen, Daniel W.H. Su, Khaled M. Mohamed, D. F. Gearhart, Ihsan Berk Tulu
Publikováno v:
International Journal of Mining Science and Technology, Vol 28, Iss 1, Pp 127-135 (2018)
International journal of mining science and technology
International journal of mining science and technology
A numerical-model-based approach was recently developed for estimating the changes in both the horizontal and vertical loading conditions induced by an approaching longwall face. In this approach, a systematic procedure is used to estimate the model
Publikováno v:
Journal American Society of Mining and Reclamation. 1994:49-56
Autor:
D F, Gearhart
Publikováno v:
Bulletin of prosthetics research. 10(13)