Zobrazeno 1 - 10
of 1 242
pro vyhledávání: '"flac3d"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract The existing mechanical and grouting anchors mostly use the expansion shell method to form a cavity on the borehole wall, and the cement slurry is poured to form multiple enlarged head plates, but the operation is more difficult and the diam
Externí odkaz:
https://doaj.org/article/b80ebb2189ac472c9aa4f9d90b41b2a0
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 150-157 (2024)
Taking the No.4 coal seam in the return air roadway in the upper formation No.1 coal mining area of a mine as the background, based on the energy dissipation theory, the energy dissipation mechanical model of arch roadway was established based on the
Externí odkaz:
https://doaj.org/article/ace7947328664a61ac3fe1152b87e471
Publikováno v:
مهندسی عمران شریف, Vol 40, Iss 2, Pp 151-163 (2024)
It is the objective of the present study to present a methodology for determining the horizontal seismic coefficient for soil-nailed walls based on numerical non-linear dynamic analysis. As a first step, two verification tests were simulated in order
Externí odkaz:
https://doaj.org/article/eba3057478d74437ba490abbfaaff28d
Publikováno v:
Royal Society Open Science, Vol 11, Iss 11 (2024)
When analysing the effect of negative temperature on overwintering pit constructions of unsaturated soil, using the mechanical parameter of saturated soil at room temperature leads to an inaccuracy in the research findings. The strength parameters ar
Externí odkaz:
https://doaj.org/article/df8b0e1796dc4232b60057a0ad58a2a0
Publikováno v:
Meikuang Anquan, Vol 55, Iss 6, Pp 169-175 (2024)
In order to study the influence of basement inclination on the stability of the dump slope under rainfall conditions, according to the actual situation of Antaibao Open-pit Coal Mine, FLAC3D software was used to simulate the slope of the dump under t
Externí odkaz:
https://doaj.org/article/08dae1963bad416a86855e0ee086a4ca
Publikováno v:
Meikuang Anquan, Vol 55, Iss 6, Pp 151-159 (2024)
To study the law of surface subsidence velocity caused by coal seam mining under thick and loose layers and thin bedrock, taking the 110801 first mining face of a mine in Huainan Mining Area as the engineering background, the finite difference softwa
Externí odkaz:
https://doaj.org/article/6a1a8272b696482a9800d20ab58642c2
Autor:
Wei Cai, Linyang Li, Mengming Lin, Jingyong Wang, Ping Wang, Qingmiao Li, Zhiping Ye, Jie Zhang, Jianjun Zhao
Publikováno v:
Natural Hazards Research, Vol 4, Iss 2, Pp 255-264 (2024)
The problem of surface deformation caused by coal mining is acute and usually lasts for a long time. During coal mining, the movement of the overlying strata has a broad range of influences, which may cause surface deformation, surface cracking, and
Externí odkaz:
https://doaj.org/article/8d4fed64602042b6a303f52601e5cbe0
Autor:
Shahriyar Heidarzadeh, Ali Saeidi
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 6, Pp 1993-2005 (2024)
We have proposed a methodology to assess the robustness of underground tunnels against potential failure. This involves developing vulnerability functions for various qualities of rock mass and static loading intensities. To account for these variati
Externí odkaz:
https://doaj.org/article/8920f05a2e914bad814dc194a7284e38
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 25-35 (2024)
In order to study the evolution law of gas transportation and storage area under different advancing speed of fully-mechanized working face, based on the overview of coal mine project, we analyzed the effect of overburden mining advancing speed by us
Externí odkaz:
https://doaj.org/article/1a9db36b40be4562ae9832fafbee5920
Publikováno v:
Tehnički Vjesnik, Vol 31, Iss 6, Pp 2028-2035 (2024)
To explore the optimization design method of reasonable support parameters for large section roadway of shallow coal seam in Yulin area, this paper takes the support parameters of 3-1 coal return air roadway in North Second Panel of Hongliulin Coal M
Externí odkaz:
https://doaj.org/article/8def3de47f8a478b90fb266db7f542f8