Results 51 to 60 of about 49,160 (240)
Numerical Study on Zonal Disintegration of Deep Rock Mass Using Three-Dimensional Bonded Block Model
Advances in Civil Engineering, 2019 Zonal disintegration, a phenomenon of fractured zones and intact zones distributed alternately in deep rock mass, is different from the excavation-damaged zone of shallow rock mass.
Qingteng Tang +4 more
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Mechanism and Application of Layered Grouting Reinforcement for Fractured Coal and Rock Roadway
Applied Sciences, 2023 This paper takes the ZF3806 working face of Shuiliandong Coal Mine in Binxian County, Shaanxi Province as the engineering background. Aiming at the problems of the development of surrounding rock cracks and roof breakage encountered in the process of ...
Ze Liao, Tao Feng
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EVALUATION PAVEMENT DISTRESSES USING PAVEMENT CONDITION INDEX [PDF]
, 2011 Pavement deterioration is resulted by both environmental and structural causes. It is difficult to maintain the road on the same specification that was owned at the opening and problems start to appear represented in the pavement cracks, holes and ...
kushardjoko, wahyudi +2 more
core
Mine roadway personnel counting technology based on deep learning
Meikuang Anquan, 2023 When a safety accident occurs in a coal mine, it is necessary to clearly understand the personnel situation in each area and reasonably arrange the rescue plan. In this paper, YOLOv5 is used as the target detector, combined with the improved DeepSORT tracking algorithm to track the mine personnel, and the personnel count in each roadway area of the ...
CHEN Taiguang +3 more
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Deep Underground Science and Engineering, EarlyView.The flowchart illustrates rock specimen testing, vibration signal acquisition, and feature extraction with Gaborlet and sparse filtering for classification. Abstract Traditional lithology identification methods mainly rely on core sampling and well‐logging data.
Jian Hao +5 more
wiley +1 more source
Meikuang AnquanIn order to solve the control problems of deformation and failure in soft and thick coal seam in kilometer-deep coal mine, the gob-side roadway in deep loose and weak thick coal seam is taken as the object. Based on on-site investigation and measurement,
Wenwei MA, Wenxu LIANG
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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
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Meikuang Anquan, 2022 The deep roadway has large deformation under the action of high stress, and traditional bolt support technology is difficult to control the stability of the surrounding rock of the roadway. Taking the deep return air tunnel of 1 000 m as the engineering
SUN Lihui +7 more
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Deep Underground Science and Engineering, EarlyView.Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu +4 more
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Applied SciencesTo investigate the influence of varied mechanical parameters of coal mass on rock burst occurrence during deep roadway tunneling, the surrounding coal and rock mass of a deep roadway were taken as the research objects.
Yu Yang, Ning Li
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