Results 51 to 60 of about 1,192,587 (115)

Comprehensive testing research on floor damage characteristics of mining extra-thick seam in Jungar Coalfield

, 2021
The 6th coal seam of the Carboniferous Permian in a coal mine in the Ordos Basin of Inner Mongolia is an extra-thick coal seam with an average minable thickness of 17.0 m. Its floor is threatened by limestone water.
Yuanchao, OU, Shenglin, LI, Pingsong, ZHANG, Shi\u27ang, XU, Chang, LIU, Binyang, SUN   +5 more
core   +1 more source

Analysis of Surrounding Rock Control Technology and Its Application on a Dynamic Pressure Roadway in a Thick Coal Seam

Energies, 2022
The deformation control of roadways surrounded by rock in the fully mechanized amplification sections of extra-thick coal seams is problematic. To analyze the failure and failure characteristics of a support frame, as well as the deformation and failure ...
Jian Hao, Anfa Chen, Xuelong Li, Hua Bian, Guanghua Zhou, Zhenguo Wu, Linjun Peng, Jianquan Tang   +7 more
doaj   +1 more source

Deterministic Cost Estimation Approaches for Carbon Capture, Utilization, and Storage: A Review

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Carbon capture, utilization, and storage (CCUS) is regarded as a connection between traditional, high‐emission sectors and future green energy. This study encompasses literature from 2003 to early 2026 to review methodologies and formulae used for cost estimating in the various segments of carbon capture, transport, utilization, and storage ...
Majid Mohajeri, Saman Azadbakht
wiley   +1 more source

Structural and Rheological Properties of Chitosan‐Biochar Composites Prepared With Waste Biomass‐Derived Biochar

Polymer Engineering &Science, EarlyView.
Chitosan dispersions containing biochar derived from vine pruning residue showed increasing shear stress and improved thermal stability with loading. Flow behavior was described by the Bingham plastic model in all cases. These results support the valorization of agricultural waste in functional biopolymer formulations.
Ahmet Eser, Mehmet Sadrettin Zeybek, Mertcan Öksüz, Kamil Şirin   +3 more
wiley   +1 more source

Calculation method of support working resistance for fully mechanized top-coal caving face with large mining height in extra-thick coal seam based on structural mechanics analysis of low-lying overburden

Meitan xuebao
To explore the mechanism of hydraulic support pressure and the calculation method of working resistance for super-high mining height fully mechanized top-coal caving face in extra-thick coal seam, taking the Tashan mine field in Datong mining area as the
Jun GUO, Zi WANG, Guorui FENG, Hongfei DUAN, JinWen BAI, LiRong LI, Xiaoze WEN, Wenbo HUANG, Jie ZHANG, Longlong YANG, Quan LIU, Jiahao ZHANG   +11 more
doaj   +1 more source

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

Safety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang, Kang Yang, Jiang Dong, Lidong Xing, Bing Chen, Changke Chen   +5 more
wiley   +1 more source

Detection technique and application of transmission in-seam wave in thin coal seam

, 2020
Aiming at the problem of serious attenuation of channel wave in thin seam and its limited distance of propagation, a method of restricted CT imaging was proposed by using the furthest in-seam wave propagation distance.
Hui, YANG
core   +1 more source

Mechanisms of Roadway Instability and Coupled Control Technology for Working Face Passing Through Fault Zones

Energy Science &Engineering, Volume 14, Issue 9, Page 4470-4485, September 2026.
This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin, Yitao Yan, En Wang, Xubo Zhao, Kanglei Han   +4 more
wiley   +1 more source

Research on the application of stage fracturing technology of L-shaped horizontal well in extra-thick coal seam

, 2023
In the process of extra-thick coal seam mining, the strength of hard roof above the coal seam is high, the breaking step distance is large, and it is difficult to collapse, especially the mining disturbance range is wide, and the rock strata of large ...
MEN Hong, ZHAO Huaquan, DOU Guidong, JIA Zenglin, GAO Yonggang, YAN Bin, XIE Fei, WU Liang
core   +1 more source

Structural model of hard overburden shell in thick coal seam and its application

Scientific Reports
Taking the mining of extra-thick coal seam of Carboniferous hard overburden in tongxin coal mine of datong mining area as the engineering background, the movement characteristics of hard overburden in fully-mechanized caving mining of 3–5 # extra-thick ...
Xing Fu, Lingjun Zeng, Hai Rong, Hongwei Zhang, Tianhao Liu, Jiankang Song   +5 more
doaj   +1 more source