Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Zhiguo Chang"'
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1834-1844 (2024)
The development of large open-pit coal fields with high safety and efficiency is the trend of open-pit coal development. With partitioned mining as the main development mode, the large open-pit coal field has the significant advantages of safety and
Externí odkaz:
https://doaj.org/article/a2057ad8b97c4c60a3beb30a15624a67
Publikováno v:
Mathematical Biosciences and Engineering, Vol 19, Iss 10, Pp 10618-10636 (2022)
A stochastic SIRS epidemic model with vaccination is discussed. A new stochastic threshold $ R_0^s $ is determined. When the noise is very low ($ R_0^s < 1 $), the disease becomes extinct, and if $ R_0^s > 1 $, the disease persists. Furthermore, we s
Externí odkaz:
https://doaj.org/article/52c71417db7040dca9ceb20fd1a4a46c
Publikováno v:
Geofluids, Vol 2022 (2022)
This paper is aimed at studying the influence of composition and microstructure on the Jurassic weakly cemented rock mechanical properties. No. 1802 tailentry was used as the engineering background, located in the Danan Lake No. 5 mine in Xinjiang, C
Externí odkaz:
https://doaj.org/article/d2d8b88704c44e2abe30ac8390a42c77
Publikováno v:
Minerals, Vol 12, Iss 5, p 598 (2022)
The change of physical and mechanical properties of slope rock mass in open-pit mines in seasonally frozen area under the action of freeze–thaw cycles is one of the main reasons for slope instability. In this paper, taking the mechanical parameters
Externí odkaz:
https://doaj.org/article/663a5f1ccaa84e578f98d751bd922c17
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
To improve the resources’ recovery ratio and the economic benefits of open-pit mines, the development of highwall mining is used to exploit residual coal. The design of rib pillar, formed by excavation and mining activities in intact coal seams, is
Externí odkaz:
https://doaj.org/article/a078501946194d7ca30b8393b9e35f6e
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
In the process of open-pit excavation and stacking of dump along the side wall, the rock mass inside the composite slope undergoes complicated loading and unloading effect, which are manifested as triaxial stress → horizontal unloading → axial lo
Externí odkaz:
https://doaj.org/article/7769d60456284b0bb69f27d1e2cc195c
Publikováno v:
In Finite Elements in Analysis & Design 2009 45(12):901-907
Autor:
Ebelia Manda, Izhar Mithal Jiskani, Xiang Lu, Zhiguo Chang, Saleem Raza Chalgri, Wei Zhou, Qingxiang Cai
Publikováno v:
Jiskani, I M, Cai, Q, Zhou, W, Chang, Z, Chalgri, S R, Manda, E & Lu, X 2020, ' Distinctive Model of Mine Safety for Sustainable Mining in Pakistan ', Mining, Metallurgy and Exploration, vol. 37, no. 4, pp. 1023-1037 . https://doi.org/10.1007/s42461-020-00207-8
The concept of mine safety is highlighted in the literature of sustainable mining but not extensively discussed. This study analyzes various aspects of underground and surface mine safety and emphasizes its importance in the context of sustainable mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d12851dbd53f33bf2409c32b32dd6503
https://vbn.aau.dk/da/publications/8c59ff03-43e0-4984-972e-006a399cbd75
https://vbn.aau.dk/da/publications/8c59ff03-43e0-4984-972e-006a399cbd75
Publikováno v:
Mathematical Problems in Engineering, Vol 2018 (2018)
With open-pit mines excavated, the slopes will be exposed to the natural environment for a long time. Affected by factors like temperature, seepage, mining, freeze-thaw, etc., slope structural integrity and strength will gradually decline as slope ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03f69129225473a2b3cbfc492b9b96f5
https://doi.org/10.1155/2018/7431465
https://doi.org/10.1155/2018/7431465
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
Chang, Z, Cai, Q, Zhou, W, Jiskani, I M & Wang, R 2019, ' Effects of the loading and unloading conditions on crack propagation in high composite slope of deep open-pit mine ', Advances in Civil Engineering, vol. 2019, 3168481 . https://doi.org/10.1155/2019/3168481
Chang, Z, Cai, Q, Zhou, W, Jiskani, I M & Wang, R 2019, ' Effects of the loading and unloading conditions on crack propagation in high composite slope of deep open-pit mine ', Advances in Civil Engineering, vol. 2019, 3168481 . https://doi.org/10.1155/2019/3168481
In the process of open-pit excavation and stacking of dump along the side wall, the rock mass inside the composite slope undergoes complicated loading and unloading effect, which are manifested as triaxial stress → horizontal unloading → axial lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b95d2045aa1c124dfa8ae554e26a4b54
https://doaj.org/article/7769d60456284b0bb69f27d1e2cc195c
https://doaj.org/article/7769d60456284b0bb69f27d1e2cc195c