Results 51 to 60 of about 64,796 (273)
The Complex Function Method Roadway Section Design of the Soft Coal Seam [PDF]
, 2016 As for the sophisticated advanced support technique of vertical wall semicircle arch roadway in the three-soft coal seam, a design of flat top U-shape roadway section was put forward.
Cun Zhang +4 more
core +2 more sources
Composite grouting reinforcement technology for deep roadway surrounding rock
Gong-kuang zidonghua, 2022 The single grouting method and grouting material can not achieve an ideal grouting effect under the complex geological conditions of deep roadway surrounding rock. In order to solve this problem, a composite grouting reinforcement technology for deep roadway surrounding rock is proposed.
FU Yukai +3 more
openaire +1 more source
Stability Classification of Roadway Surrounding Rock Cased on Fuzzy Comprehensive Evaluation
International Journal of Energy, 2023 In order to effectively predict the stability of roadway surrounding rock, a reasonable and effective support scheme was proposed. Fuzzy clustering analysis was introduced to classify the stability of roadway surrounding rock. Based on the data processing of 7 classification indexes, the weight and subordination degree of surrounding rock indexes of ...
Bingbing Shu +3 more
openaire +1 more source
Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock
Advance in Civil Engineering, 2021 In order to understand the instability characteristics of surrounding rock in the process of deep roadway excavation, a three-dimensional numerical model was established by FLAC3D to systematically analyze the influence of roadway surrounding rock ...
Tao Li, Hao Gong, Guoliang Xu
semanticscholar +1 more source
Shock failure mechanism of roadway in extra thick coal seam and full anchor cable support technology
Meitan xuebao, 2023 In view of the serious shock failure of roadway in extra thick coal seam, based on elastic mechanics and shock dynamics, this paper studies the shock failure mechanism of roadway in extra-thick coal seam, reveals the main influencing factors of roof coal
Mingshi GAO +4 more
doaj +1 more source
矿业科学学报, 2017 The distribution of plastic zone of surrounding rock in deep mining roadway is the key to control the stability of surrounding rock. Taking the deep mining roadway of Xingdong Mine as the research background, according to the "butterfly-shaped" plastic ...
Li Yongen +4 more
doaj +1 more source
Advances in Civil Engineering, 2021 In order to effectively solve a series of problems such as the difficulty of coal and rock interbed roadway support in Gaojiazhuang Coal Mine and get a scientific and reasonable optimization scheme of surrounding rock support, theoretical analysis ...
Chaolin Liu, Guohua Zhang
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
Control theory of uniform strength support in deep roadway
矿业科学学报, 2021 In this paper, a large number of coal mine roadway failure cases are investigated, and 6 types and 15 typical failure forms are extracted.The mechanical characteristics and stress distribution of surrounding rock of typical roadway shapes such as ...
Zuo Jianping +4 more
doaj +1 more source
Shock and Vibration, 2021 In order to explore the deformation and failure evolution characteristics of the surrounding rock during the connection process of the deep rock burst drivage roadway under the dynamic load disturbance, and based on this, the catastrophe mechanism of the
Xinggang Xu +5 more
semanticscholar +1 more source