Results 31 to 40 of about 2,019 (156)

Small Target Detection Model for Open-Pit Coal Mines Based on UAV Perspective

open access: yesIEEE Access
To address issues such as missed detection of small targets, low computational efficiency, and difficulties in deploying on edge devices encountered in the detection of uncrewed mining trucks under the complex environment of open-pit coal mines, this ...
Kuan Lv   +4 more
doaj   +1 more source

Experimental study on pulse gas presplitting grouting in water-rich muddy silt layer in open-pit coal mine

open access: yesMeikuang Anquan
To address the challenges of non-uniform grout diffusion and the difficulty in forming a continuous water cutoff curtain in water-rich muddy silt layers of open-pit coal mines, a novel method combining high-pressure pulsed gas pre-splitting for soil ...
Yan FENG   +5 more
doaj   +1 more source

Controlled mining technology of multi-weak bedding down-dipping soft rock slope

open access: yesMeikuang Anquan
Aiming at the problem of coal at the lower part of multi-weak bedding down-dipping soft rock slope, from the perspective of controllable slope deformation risk and the maximization of resource recovery, based on the analysis of geological data and weak ...
Jiao WANG   +5 more
doaj   +1 more source

Research on intelligent evaluation system of open-pit mine

open access: yesMeikuang 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

Concept and Practice of Open-pit Mining Area Restoration and Reuse --- Taking an Open-pit Coal Mining Area in Datong, Shanxi as an Example [PDF]

open access: yesE3S Web of Conferences, 2020
The restoration of open-pit mining coal mine areas is imminent, and it is of great significance to put forward a set of reasonable restoration concepts.
Jiayin Huang   +4 more
doaj   +1 more source

Distribution Characteristics of Fragments Size and Optimization of Blasting Parameters Under Blasting Impact Load in Open-Pit Mine

open access: yesIEEE Access, 2019
The size distribution characteristics of fragments formed after loose blasting in open-pit mine will directly affect the economic benefits of the mining enterprise.
Xiaohua Ding   +7 more
doaj   +1 more source

Theory and technical system of coal ecological open-pit mining and its application

open access: yesMeitan xuebao
Large-scale open-pit coal mining will cause ecological problems such as land excavation and occupation, groundwater drainage, soil erosion, vegetation destruction, air pollution, and regional landscape damage. The selection of existing open-pit coal mine
Quansheng LI
doaj   +1 more source

“Seven in one” effect inspection method system of water cut-off curtain in open-pit coal mine

open access: yesMeikuang Anquan, 2023
In order to realize green, safe and efficient mining in open-pit coal mines, water cut-off curtain as a new technology of energy saving, carbon reduction and water conservation, has been continuously applied to open-pit coal mines. The cut-off curtain of
ZHANG Yan
doaj   +1 more source

Design methods for open pit coal mine footwalls

open access: yes, 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   +3 more
openaire   +1 more source

Research on the construction method of temporal knowledge graph for open-pit coal mine slope safety

open access: yesGong-kuang zidonghua
This paper aims to address the issues of insufficient temporal knowledge graphs for open-pit coal mine slope safety, difficulties in effectively sharing data resources, and limitations in handling dynamic knowledge. A method for constructing the temporal
CHU Yangjing   +3 more
doaj   +1 more source

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