Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Pingsong Zhang"'
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 628-644 (2024)
Mining subsidence represents the primary environmental geological challenge in coal mining, particularly at high water level mining areas in the eastern regions of China. The control of movement deformation and the assessment of ecological losses in
Externí odkaz:
https://doaj.org/article/05ab90da6407463ba8bc1073049f2bf7
Autor:
Yuanchao Ou, Pingsong Zhang, Maoru Fu, Xiongwu Hu, Rongxin Wu, Chang Liu, Binyang Sun, Shiang Xu, Shenglin Li, Lei Tan
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
Abstract The fracture of rocks surrounding the floor roadway during the mining of the working face of a coal mine is a complicated spatiotemporal process due to the superimposed action of multiple stress fields on the surrounding rock mass. Using the
Externí odkaz:
https://doaj.org/article/b0534501cb9741da9209e38694184c42
Publikováno v:
Lithosphere, Vol 2022, Iss Special 10 (2022)
AbstractSpecimen-scale testing of loaded rock parameters is an important research component of rock mechanics testing. In this paper, a method combining 3D-DIC and FBG (fiber Bragg grating) technology is proposed and applied to the study of deformati
Externí odkaz:
https://doaj.org/article/a5018623c67a4931b80bc0bd981a11b8
Autor:
Yuanling Shi, Pingsong Zhang
Publikováno v:
Geofluids, Vol 2022 (2022)
Hydraulic top drive is the main power component used to drive drilling tools rotating to drill a hole for drilling rigs. Its main transmission system was built with hydraulic power source and hydraulic actuators. During the drilling procession, the h
Externí odkaz:
https://doaj.org/article/6c30441fc4944a8db4ef635235c1ef88
Publikováno v:
Geofluids, Vol 2022 (2022)
During the extraction of coal seam, the evolution pattern of the rock is an important element for controlling the rock seam and preventing water damage to mine. In order to obtain the deformation and damage of weakly cemented coal seam footings under
Externí odkaz:
https://doaj.org/article/65285bfb25c743f193a78d8f6898901d
Publikováno v:
Energies, Vol 15, Iss 19, p 7324 (2022)
The precise prediction of coal seam thickness in operating mines is crucial for the construction of transparent mines. Geological borehole data or a small amount of seismic information is frequently used in traditional coal seam thickness prediction
Externí odkaz:
https://doaj.org/article/94a9e2ffe6534b03af5e43327da850ad
Publikováno v:
AIP Advances, Vol 10, Iss 8, Pp 085102-085102-9 (2020)
A 3D joint inversion of 2D electrical prospecting data can effectively solve the shortcomings of the 2D electrical method in detecting the spatial forms of anomalous bodies. However, the direction and interval between 2D electrical prospecting survey
Externí odkaz:
https://doaj.org/article/3fbb62fafdf64af5a6996126982f944a
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
The deformation mechanism of the protective coal and rock pillar area outside a stope is an important parameter for setting a reasonable size. In this paper, based on the geological condition of working face 1231(1) in a mine in Huainan, a method tha
Externí odkaz:
https://doaj.org/article/af3c7fc0363f4abea37d3c9a1feab9a8
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
Coal and gas outburst is an important risk faced by coal seam mining in the Huainan region of China. In order to control gas outburst, the gas is predrained by digging a floor gas drainage roadway. To study deformation due to dynamic pressure, the fa
Externí odkaz:
https://doaj.org/article/16000efa240e430da39dd19c7db55627
Publikováno v:
Sensors, Vol 20, Iss 14, p 3853 (2020)
A rock fracture test is a very important method in the study of rock mechanics. Based on the Mechanics Test System (MTS), the dynamic strain response of the failure process of cylindrical granite specimens under uniaxial compression was observed by u
Externí odkaz:
https://doaj.org/article/094cb43263c1463c91e7b48ee37fefb0