Results 31 to 40 of about 46,511 (232)

Improving the process of coal extraction based on the parameter optimization of mining equipment [PDF]

, 2018
The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining.
Hrinov, Volodymyr, Khorolskyi, Andrii
core   +1 more source

Review on seismic response of tunnel engineering: from dynamic characteristics of rock mass to structural earthquake-resistant analysis

Meitan xuebao
Although tunnel structures are confined by the surrounding strata, and relative movement between the structure and strata is not obvious under seismic loads, resulting in significantly superior seismic performance compared to surface structures, they are
Yujing JIANG, Xingda WANG, Xuepeng ZHANG
doaj   +1 more source

Research on Dominant Factors and Control Technologies for Instability in Cross-Mining Roadway

Eng
To investigate the dominant factors and instability mechanism of surrounding rock deformation in cross-mining roadways, a systematic study was conducted using theoretical analysis, numerical simulation, and response surface methodology to examine the ...
Hao Wang, Miao Chen, Jiangwei Liu, Peidong Li, Wenfei Wang, Xianghan Xu, Hui Zhou   +6 more
doaj   +1 more source

Reports and Maps of the Geological Survey Released Only in the Open Files, 1966 [PDF]

, 1967
There is a reference to the Espey "Some effects on urbanization on storm runoff, Waller Creek".Waller Creek Working ...
Brett, George W., Griffin, Margaret S., Weld, Betsy A.   +2 more
core   +1 more source

Exploring the Effectiveness of Fusing Synchronous/Asynchronous Airborne Hyperspectral and LiDAR Data for Plant Species Classification in Semi-Arid Mining Areas

Remote Sensing
Plant species classification in semi-arid mining areas is of great significance in assessing the environmental impacts and ecological restoration effects of coal mining.
Yu Tian, Zehao Feng, Lixiao Tu, Chuning Ji, Jiazheng Han, Yibo Zhao, You Zhou   +6 more
doaj   +1 more source

Design methods for open pit coal mine footwalls

, 1986
Special design methods are required for footwalls due to the inability to detect problem geometries (rolls, cross faults, pinchout) prior to mining. Application of new analytical methods to different failure modes is discussed together with aspects of monitoring, geometry detection and mitigation.
D S Cavers, G H Baldwin, T Hannah, R K Singhal   +3 more
openaire   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

Carbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal, Avinash C. Mendhe, Mayna Roy, Neha S. Barse, Taejoon Park, Han‐Seung Lee, Haigun Lee   +6 more
wiley   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

Deep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen, Pinqiang Mo, Zhao Lu, Lianfei Kuang, Qiang Zhang, Abolfazl Eslami   +5 more
wiley   +1 more source

Hydrocarbon generation potential evaluation of high–over mature Permian source rocks in the Southwestern part of the central depression, Junggar Basin

Petroleum
A comprehensive study was conducted on the hydrocarbon generation potential of the deeply buried Permian source rocks with high–over mature in the southwestern part of the Central Depression, Junggar Basin.
Chenyu Wang, Guanlong Zhang, Xiangchun Chang, Fengkai Shang, Bingbing Shi, Yansheng Qu, Tianjiao Liu, Shangbin Wang, Zhuanghao Peng   +8 more
doaj   +1 more source

Research on intelligent evaluation system of open-pit mine

Meikuang Anquan, 2022
In view of the lack of unified standards for the intelligent evaluation system of open-pit mines in our country, the lack of construction basis, evaluation criteria and other key issues in the construction process, research on the intelligent evaluation
GUO Yingjie
doaj   +1 more source