Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Ki-il Song"'
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 2, Pp 2164-2175 (2020)
The structural safety and thermal properties of cemented paste backfill (CPB) are the key factors to realize geothermal exploitation by using CPB. In this paper, taking the gold tailing-based consolidated backfill body as research object, thermal con
Externí odkaz:
https://doaj.org/article/744f681bde734bc3a84089f978a0bb06
Publikováno v:
Frontiers in Physics, Vol 9 (2021)
To study the deformation behavior of the high rockfill (HRF) embankment during construction and operation, based on more than a 50-m high rockfill embankment of the second-class road reconstruction project from Xunyang to Ankang of the national road
Externí odkaz:
https://doaj.org/article/b3311e44295e41f7a50a68937dadbf03
Publikováno v:
Tehnički Vjesnik, Vol 26, Iss 3, Pp 743-751 (2019)
Concrete materials are important in infrastructure and national defence construction. These materials inevitably bear complicated loads, which include static load, high temperature, and high strain rate. Therefore, the dynamic responses and fragmenta
Externí odkaz:
https://doaj.org/article/cefde15586df48b89713e551495ccf5c
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
The contact part between shaft wall and rock is affected by many factors, such as temperature and formation pressure, in the commonly used freezing method in coal mine development through quicksand and water-rich strata. To confine the relationships
Externí odkaz:
https://doaj.org/article/b59f14a9927a4261980ffb25c5f4c9c4
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
The stability of tunnels has mainly been evaluated based on displacement. Because displacement due to the excavation process is significant, back analysis of the structure and ground can be performed easily. Recently, the length of a segment-lined tu
Externí odkaz:
https://doaj.org/article/728e8c2232cd404f9088a72925322abd
Publikováno v:
Tehnički Vjesnik, Vol 25, Iss 2, Pp 492-501 (2018)
The main roof directly affects the stress environment and the control effect of the surrounding rock of gob-side entry driving. A mechanical model of the surrounding rock of gob-side entry driving was established to analyze the influence mechanism of
Externí odkaz:
https://doaj.org/article/7f427acae9ec463086f6c5a7e2ac1f67
Publikováno v:
Applied Sciences, Vol 11, Iss 7, p 2967 (2021)
With the increasing use of the tunnel boring machine (TBM), attempts have been made to predict TBM operating parameters. Prediction of operating parameters is still an important step in the adaptability of the TBM for the future. In this study, we em
Externí odkaz:
https://doaj.org/article/bba447605a0b47c3b5b68debf48d65f3
Publikováno v:
Energies, Vol 13, Iss 18, p 4755 (2020)
In view of high ground stress, high geothermal temperature, and thermal hazard during deep mineral resource exploitation, the concept of phase-change heat storage backfill was put forward in this study. Further, the corresponding technical system was
Externí odkaz:
https://doaj.org/article/fc95e82629c04d3d9f421673adb2fbaa
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
The aim of this study was to examine the microstructure of cemented paste backfill (CPB) during its development and relate the characteristics of the microstructure to the physical and mechanical properties of CPB. The geometry and morphology of the
Externí odkaz:
https://doaj.org/article/fa8b720eb5154988adc0ee2ee980ca05
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
To investigate the mechanical properties and energy evolution characteristics of sandstone depending on the water contents and confining pressure, the uniaxial and triaxial tests were conducted. The test results show that the strain energy was stored
Externí odkaz:
https://doaj.org/article/d19dc350d2f541adac67a95d2bd54154