Results 101 to 110 of about 1,558 (203)
Geo-Resources Environment and Engineering, 2017 Aiming at characteristics of the soft coal roadway engineering geology and deformation, the exposure research of the soft coal seam, theoretical analysis, numerical calculation and program design were carried out. First of all, according to the disclosure, soft coal seam engineering characteristics and geological conditions in Xinxing coal mine were ...
Genshui Wu +3 more
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Transparent mining mode and key technologies of fully mechanized working face
, 2022 In order to solve the problem that the intelligent mining technology based on adaptive working face geological conditions can not meet the practical engineering application requirements, a transparent mining mode of fully mechanized working face is ...
WANG Feng, YUAN Changsuo
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Meikuang AnquanThe fully mechanized mining face system is complex and large, and the equipment is highly correlated. The reliability of the intelligent fully-mechanized coal mining equipment system has gradually become the key factor restricting the intelligent safe ...
Xu LI +4 more
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, 2020 Aiming at the problem of reasonable width of coal pillars in thick seam pre-mining roof slicing fully mechanized mining face, taking 1308 working face of a mine as engineering background, the reasonable width range, stress distribution law and plastic ...
YANG Hengze, LENG Chao, WANG Chao, XIE Wenwu, LIU Chao, HE Hongkun
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Mathematical model of automatic following control in the middle of fully mechanized mining face
, 2016 With consideration of bi-directional cutting characteristics of fully mechanized mining face and analysis of coordinated control of shear, hydraulic support and scraper conveyor, a mathematical model was firstly proposed to describe curved path of ...
CUI Zhifang +3 more
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Analytical solution of predicting rib spalling depth of fully-mechanized coal working face based on tri-linear strain softening model [PDF]
In order to predict rib spalling depth in fully-mechanized mining faces, taking the coal wall as the research object, the coal wall is regarded as a tri-linear strain softening material. Then the direct roof and main roof are taken as macro roof, and the
Guoming CHI +3 more
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, 2011 Based on the strong danger and great difficulty characteristics of coal pillars mining under strong ground pressure in Datong coal district, the observations on the No.311 coal face in Tongjialiang coal mine were carried out by the method of drilling ...
Hong Chun Xia, Zhen Qi Song, Wei Li
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Multi-dimensional constraint-based coal mining machine cutting path planning technology
Meitan xuebaoThe cutting path planning technology for coal mining machines is one of the key technologies for achieving intelligent mining in fully mechanized mining faces.
Shuyang SONG +4 more
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Simulation research on motion of three machines on fully mechanized coal mining face
Gong-kuang zidonghua, 2018 In view of problems that current simulation research on motion of three machines on fully mechanized mining face could not display single-machine motion state in detail, and linkage process of a single unit was rarely involved, geometric model of three machines were established using virtual machine technology.
HAN Feijuan +3 more
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Research of straightness control system of fully-mechanized coal mining face
Gong-kuang zidonghua, 2015 The paper analyzed main methods of straightness control of fully-mechanized coal mining face and introduced working principle of straightness control. It used laser alignment sensor to design straightness control system in coal mining face, so as to achieve straightness control of hydraulic support.
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