Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Zhao Hongbao"'
Autor:
Yang Guang, Zhao Hongbao
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 6, Pp 2591-2615 (2024)
Abstract To investigate the effects of different crustal stresses on the stability of gas extraction boreholes, several equations were deduced. Additionally, the coupled flow‐solid model of gas extraction was constructed, given the elasticity−pla
Externí odkaz:
https://doaj.org/article/70e6d572623247c8ba150cd72a237b2d
Publikováno v:
矿业科学学报, Vol 9, Iss 3, Pp 435-445 (2024)
The evolution of fractures in mining overburden plays a pivotal role in interlayer gas migration. Therefore, a comprehensive study of crack development and distribution improve the efficiency of gas extraction. This study the west 2107 fully mechaniz
Externí odkaz:
https://doaj.org/article/83ece103ec114ac8a6736bcbab0128db
Publikováno v:
矿业科学学报, Vol 9, Iss 3, Pp 404-412 (2024)
To reduce the pollution of the roadway environment and the damage caused by the personnel and equipment by the dust escaping from the fully mechanized driving face, a chemical and environmentally friendly dust suppressant with strong wettability and
Externí odkaz:
https://doaj.org/article/dc3893a2897049249d15a9edbddd6eed
Publikováno v:
矿业科学学报, Vol 9, Iss 2, Pp 243-257 (2024)
As disorderly dust emission of open-pit mines often leads to ecological degradation, this study therefore conducts a quantitative analysis on the evolution patterns of particle changes and the influence of environmental indicators on the weights of m
Externí odkaz:
https://doaj.org/article/945aa128881e45a7997aebf62632deba
Publikováno v:
矿业科学学报, Vol 9, Iss 1, Pp 77-87 (2024)
This study established a comprehensive evaluation model for soil fertility in an open-pit coal mine dump in Jiuxian County of Hequ by drawing on Fuzzy Analytic Hierarchy Process (FAHP) and expert scoring theory. 4 criteria and 25 factors were applied
Externí odkaz:
https://doaj.org/article/65b990a3d4bb424d95dc905b206fc976
Publikováno v:
矿业科学学报, Vol 8, Iss 3, Pp 419-427 (2023)
The open-pit mine has high mining efficiency, low cost, safe production and good economic benefits, but it also affects the structure and physical and chemical properties of the soil in the dump, resulting in the loss of soil nutrients and damage to
Externí odkaz:
https://doaj.org/article/dd95c3acb6444bf2bc494a7b86131f25
Publikováno v:
矿业科学学报, Vol 7, Iss 6, Pp 710-719 (2022)
In order to reduce the harm of dust dispersion in open-pit coal mine to the mining environment and the damage of personnel and equipment, this paper carried out the research on dust migration, distribution and treatment in open-pit coal mine by takin
Externí odkaz:
https://doaj.org/article/ff20d3368c2148fda95081b8b3a76f38
Publikováno v:
矿业科学学报, Vol 7, Iss 2, Pp 166-174 (2022)
In order to accurately identify mine microseismic signals, this paper proposes a VGG4-CNN deep learning network model suitable for identifying mine microseismic signals. The model is written in Python language and built based on the PyTorch deep lear
Externí odkaz:
https://doaj.org/article/6a73338e88e644959d5d8db4352cb98c
Publikováno v:
矿业科学学报, Vol 6, Iss 3, Pp 314-322 (2021)
Based on the slip line field theory, the slip line field model of roadway floor is established.Taking 1021 roadway of Huipodi coal mine in Shanxi Province as the engineering background, the mechanism of asymmetric floor heave of roadway is studied, a
Externí odkaz:
https://doaj.org/article/2a70e87f33bc4d4da96fe32423fefe5a
Publikováno v:
矿业科学学报, Vol 5, Iss 6, Pp 638-647 (2020)
Taking Huipodi coal mine as the engineering background, the asymmetric deformation mechanism of the mining roadway under the island coal pillar was studied by theoretical analysis, numerical simulation and field measurement, and the corresponding flo
Externí odkaz:
https://doaj.org/article/f7c5af1c77284d6b910a42556491d81f