Results 71 to 80 of about 3,856,015 (196)

Similar Material Simulation Study on Dam Movement and Deformation Law of Deep Coal Seam Mining Under Dam

Energy Science &Engineering, Volume 14, Issue 4, Page 1808-1821, April 2026.
Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng, Qin Hong‐yan, Hu Shou‐bin, Xu Xiao‐yu, Ti Zheng‐yi, Zheng Zhuo‐yan, Yang Shuai, Li Yang   +7 more
wiley   +1 more source

Study on the Slurry Diffusion Law of Fluidized Filling Gangue in the Caving Goaf of Thick Coal Seam Fully Mechanized Caving Mining

, 2022
Because of the problem of gangue discharge and surface subsidence during coal mining, the current research on underground filling mainly focuses on the paste filling, solid filling, and grouting filling of the overburden separation layer after ...
Yanpeng He, Qingxiang Huang, Xiao Zuo, Jie Wu, Weilong Zhang, Baoning Wei, Jie Zhang, Liang Li   +7 more
core   +1 more source

Research on the Laws of Destructive Patterns and Control Measures of Overlying Rock in High‐Efficiency Large‐Scale Mining Faces

Energy Science &Engineering, Volume 14, Issue 4, Page 1851-1863, April 2026.
With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong, Peilin Gong, Kang Yi, Kaijie Duan, Lizhu Liu, Peng Li   +5 more
wiley   +1 more source

Method of tail beam posture prediction of top coal caving hydraulic support based on LSTM

Meitan kexue jishu
Fully mechanized caving is the main mining method for extra-thick coal seams in my country. The control accuracy of the caving actuator depends largely on the data feedback of the tail beam posture.
Yupeng YAO, Jinglin ZHANG, Wu XIONG
doaj   +1 more source

Study on thin bedrock deformation and strata behavior in coal seam mining under ultra-thick unconsolidated strata

Gong-kuang zidonghua, 2018
Taking No.12051 fully-mechanized coal face of Zhaogu No.1 Coal Mine as research object, thin bedrock deformation and strata behavior in coal seam mining under ultra-thick unconsolidated strata were studied by use of UDEC numerical simulation software ...
ZHAI Xinxian, LYU Chao, TANG Shijie, YU Chunsheng   +3 more
doaj   +1 more source

Characteristics of Deformation and Damage of Multi‐Thin Composite Oil Shale Top Plate Under the Influence of Different Factors

Energy Science &Engineering, Volume 14, Issue 4, Page 2118-2136, April 2026.
In this study, the key control mechanism of surrounding rock stability is revealed by theoretical analysis and UDEC‐Trigon numerical simulation method, aiming at the problem that oil shale roof is prone to separation and slip deformation under complex stress.
Jiang Xiao, Yujiang Liu, Yihui Wang, Boyuan Zhang, Yulin Wang, Tongxiaoyu Wang   +5 more
wiley   +1 more source

Nitrogen Injection and Fire Prevention Technology for Short Arm High Mining Height Fully Mechanized Caving Face

, 2020
To determine the important nitrogen injection process parameters, such as the reasonable nitrogen injection flow rate, the nitrogen injection pipeline spacing and the initial nitrogen injection depth in the goaf, the beam monitoring system is ...
WANG Kun
core   +1 more source

Disastrous Mechanism and Concentration Distribution of Gas Migration in Fully Mechanized Caving Stope in Wuyang Coal Mine

, 2021
The overrunning disaster of harmful gas tends to occur in the working face in thick coal seam with high gas concentration, as the fully mechanized caving stope has the characteristics of high mining intensity, high remnant coal, and high gas content ...
Li Chong, He Sifeng, Xu Zhijun
core   +1 more source

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 127-143, March 2026.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian, Jiabao Wang, Changsheng Wang, Shijie Sun, Lijun Han, Qingbin Meng, Sunhao Zhang   +6 more
wiley   +1 more source

Rotating mining technology and underground pressure law of fully mechanized caving face in Baode Coal Mine

, 2021
In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical ...
YANG Xiaodong, LI Cunzhou
core   +1 more source