Results 21 to 30 of about 93,033 (262)
Numerical methods of geomechanics tasks solution during coal deposits’ development [PDF]
, 2016 Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of rock massif physical model ...
Bondarenko, V +4 more
core +2 more sources
Design and numerical simulation analysis of guide support scheme for underground roadway
Meikuang Anquan, 2022 In order to effectively control the deformation and instability of roadway strike, a partial guide inclined long bolt support scheme is proposed. Through the theoretical analysis of the stress transfer process in the direction of roadway, the mechanical ...
FANG Juejing, YANG Ke, LYU Xin
doaj +1 more source
Study on bearing capacity characteristics of steel structure support in soft rock roadway
Energy Science & Engineering, 2021 When the soft rock roadway in underground mine is supported by steel frame, the bearing capacity of steel structure is the key to the success of roadway support.
Ya‐bin Wu +5 more
doaj +1 more source
Shock and Vibration, 2021 Rockburst of deep roadway was induced by the superposition of mine earthquake disturbance and high static stress exceeding the limit strength of coal-rock mass. To study the roadway impact instability characteristics caused by mine earthquake disturbance
Guang-jian Liu +6 more
doaj +1 more source
Design of roadway advanced support and study on its mechanical characteristics
Gong-kuang zidonghua, 2019 In view of problem that there is a big difference between calculated load and real load when roof load is estimated or thin plate theory model is used to study mechanical characteristics of advanced support at present, a new type of roadway advanced ...
YANG Xinshun, YANG Zhiqiang
doaj +1 more source
Case Studies in Construction MaterialsChemical grouting reinforcement technology is a crucial method for enhancing the stability of roadway surrounding rock. This study focuses on a novel polyurethane-based composite polymer grouting material, systematically analyzing the mechanical response
Zijun Han +7 more
doaj +1 more source
Robotized advance support scheme and optimum support opportunity for deep fully mechanized roadway
矿业科学学报, 2019 The fully mechanized excavation working face is the accident-prone area,such as the roof collapse and the rib spailling.With the increase of coal mining depth,the problem becomes more obvious,which seriously threatens the personal safety of coal miners ...
Xue Guanghui +4 more
doaj +1 more source
Analysis of the impact of the combined use of rebar bolts and FRP bolts in the roadway enclosure
Scientific Reports, 2023 In order to investigate the support effect of the combination of FRP bolts and rebar bolts in the roadway, taking a coal mine as the background of the project, research and analysis of the engineering geological conditions of the mine and the layout of ...
Jinguo Lyu +5 more
doaj +1 more source
Simulation test and numerical analysis of the performance of hydraulic support for pile foundation
Meitan kexue jishuIn view of the poor applicability of the traditional roadway portal hydraulic support due to its shortcomings such as bulky bottom beam, large space occupation and inconvenient installation and dismantling.
Yimin SONG +5 more
doaj +1 more source
Energies, 2023 Support technology faces challenges in view of the large deformation of surrounding rock in three-soft coal roadways under high horizontal stress in Zijin Coal Mine, China.
Xiaoping Xie +6 more
doaj +1 more source