Results 31 to 40 of about 5,156 (170)

Three-dimensional Information Acquisition and Visualization Application in Goaf [PDF]

, 2014
Mastering the shape, size and variation of goaf is important to goaf disposal, disaster control and mining optimization. A method is presented to realize goaf precision monitoring and 3D visualization by cavity monitoring system (CMS).
Biao, Yang, Shuhan, Lou, Zhouquan, Luo
core   +1 more source

Two-Stage Caving Characteristics of Complex Irregular Goaf: A Case Study in China

Advances in Civil Engineering, 2023
Different from the goaf formed by normal mining, the goaf formed by the continuous caving of the lower illegal goafs is extremely irregular and unstable, which leads to the difference in the goaf caving characteristics.
Junyang Zhang, Zonghong Zhou, Jing Zhang, Yin Liu, Yang Liu   +4 more
doaj   +1 more source

STUDY ON SURFACE STABILITY AND RESIDUAL DEFORMATION OF OLD GOAF IN DONGJIAGOU MINE，CHINA

Civil Engineering Journal, 2021
Old goaf under the overpass becomes serious hidden trouble of subgrade-pavement and bridge engineering. Based on geological survey, geophysical survey and theoretical analysis, this paper studies on formation mechanism and distribution characteristics of
Zechuang Li, Peifeng Cheng, Zhibin Liu, Junjie Zheng   +3 more
doaj   +1 more source

Systematic protection and restoration of water bodies in collapse areas based on surface runoff regulation

Meitan xuebao
In order to solve the problems of surface runoff disorder, poor water connectivity, and weak hydrodynamic water circulation capacity in high groundwater level mining areas in the east, and to reduce the non-point source pollution and point source ...
Shaogang LEI, Yufan XU, Mian ZHANG, Dongxing CHEN, Xia HUA, Dong GUO   +5 more
doaj   +1 more source

Numerical Simulation on goaf with different vertical distances in high-drainage roadways [PDF]

E3S Web of Conferences, 2020
High drainage roadway horizon parameters not only influence goaf drainage effect, but also have effect on the air leakage field and spontaneous combustion three zones’ distribution in the goaf.
Yang Rili, Cui Jianbin, Yang Fengfeng, Zhang Jufeng, Yu Lan   +4 more
doaj   +1 more source

Characteristics of Porosity Distribution and Gas Migration in Different Layers of Comprehensive Working Face Goaf

Energies, 2023
The fracture field and permeability distribution model of comprehensive working face goaf was integrated upon the theoretical examination to investigate the fracture field distribution law of goaf and gas migration and accumulation characteristics, and ...
Qian Ma, Junhua Xue, Yu Shi, Xiangzhen Zeng   +3 more
doaj   +1 more source

Study on fluid heat transfer in porous media in goaf

, 2022
With the increasing mining depth of the mine, the high temperature and heat damage of the mining face is becoming more and more serious, and the phenomenon of spontaneous combustion of residual coal is particularly obvious, which seriously affects the ...
SI Junhong, LUO Songtao, LI Lin, CHENG Genyin   +3 more
core   +1 more source

Numerical analysis of oxidation zone variation in goaf [PDF]

, 2011
A good understanding of seepage flow distribution and the situation of coal spontaneous three zones in the goaf is of great value to integrated control of coal spontaneous combustion.
Bo Tan, Tan, Bo, Shen, Jing, Jing Shen, Xiapei Guo, Dongfang Zuo, Zuo, Dongfang, Guo, Xiapei   +7 more
core   +1 more source

Distribution of oxygen concentration in the goaf.

, 2022
Distribution of oxygen concentration in the goaf.
Changyou Liu (1919344), Xintian Li (5544788), Jianwei Li (135213), Ningbo Zhang (591333)   +3 more
core   +1 more source

Study on the Effect of Pore Evolution on the Coal Spontaneous Combustion Characteristics in Goaf

Fire
Understanding the characteristics of coal spontaneous combustion (CSC) in goaf under different porosities is crucial for comprehending the mechanism of CSC and its prevention and control.
Jinglei Li, Hao Xu, Genshui Wu
doaj   +1 more source