Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Jianguo Ning"'
Publikováno v:
AIP Advances, Vol 14, Iss 9, Pp 095033-095033-15 (2024)
To observe the deformation and the failure process of solid objects in explosion and impact simulations, the clarity and accuracy of simulation image representations should be ensured. However, in the results of three-dimensional (3D) explosion field
Externí odkaz:
https://doaj.org/article/032963c575ca403a9e5ff8d07d0b5914
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 181-189 (2024)
In view of the loose, broken and serious deformation of the surrounding rock of the connection roadway in the south of 730 mining area of Xinhe Mining Company, the influence of different grouting parameters on the slurry diffusion was discussed by us
Externí odkaz:
https://doaj.org/article/ada8f24346ed40408e0d15f7ee2b1e88
Autor:
Xinzheng Qu, Xinshuai Shi, Xuehui Li, Jianguo Ning, Guangzhi Li, Weiqiang Chen, Zhaohui Zhang
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03965- (2024)
Carbon nanotubes (CNTs) reinforced cement based grouting material is an important part of green manufacturing industry. Our previous research showed that this material can effectively enhance the impact resistance of rock matrix. In this study, We co
Externí odkaz:
https://doaj.org/article/21ad341a6c504a35b3620affe62f12eb
Publikováno v:
International Journal of Coal Science & Technology, Vol 10, Iss 1, Pp 1-15 (2023)
Abstract Soft rocks, such as coal, are affected by sedimentary effects, and the surrounding rock mass of underground coal mines is generally soft and rich in joints and cracks. A clear and deep understanding of the relationship between crack geometri
Externí odkaz:
https://doaj.org/article/30d1cef2158e4f63ac835d88fd884397
Publikováno v:
AIP Advances, Vol 14, Iss 2, Pp 025220-025220-10 (2024)
To study the effect of sulfate ion erosion on grouted reinforced coal bodies, downhole grouting reinforcement was simulated by artificially prefabricating regular serrated structural surfaces and grouting them with cement. In addition, sulfate erosio
Externí odkaz:
https://doaj.org/article/e508654e4621402e955d9a7e7fbc5741
Publikováno v:
Buildings, Vol 14, Iss 3, p 722 (2024)
Against the background of the prevailing green development paradigm, numerous coal mines have embraced the adoption of gob-side entry retaining mining technology. The most commonly employed form of gob-side entry retaining involves building an artifi
Externí odkaz:
https://doaj.org/article/0828591c6bbc4a68a3ea733335a5fef3
Publikováno v:
Lithosphere, Vol 2022, Iss Special 10 (2022)
AbstractThe presence of joints and other types of discontinuities has a significant effect on the mechanical properties of rock, especially for tensile properties to fundamentally influence the stability of rock excavations. The main challenge associ
Externí odkaz:
https://doaj.org/article/d286802d1be24329b7c2d8c1fa3cf70b
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 3, Pp 495-505 (2021)
Large and super-large section chamber groups in coal mines are frequently affected by dynamic loads resulting from production activities such as roadway driving and blasting. The stability of the surrounding rock is poor, and it is difficult to contr
Externí odkaz:
https://doaj.org/article/46aabcd6a8194b7f897db01097cf1358
Publikováno v:
Defence Technology, Vol 16, Iss 4, Pp 910-921 (2020)
Non-cylindrical casings filled with explosives have undergone rapid development in warhead design and explosion control. The fragment spatial distribution of prismatic casings is more complex than that of traditional cylindrical casings. In this stud
Externí odkaz:
https://doaj.org/article/436cc9b5b4784ea8b038ba612fde7169
Autor:
Shanchao Hu, Yunliang Tan, Hui Zhou, Wenkai Ru, Jianguo Ning, Jun Wang, Dongmei Huang, Zhen Li
Publikováno v:
Energy Science & Engineering, Vol 8, Iss 3, Pp 789-803 (2020)
Abstract Layered rocks exhibit notable transverse isotropy and have a significant impact on the deformation and failure characteristics of underground structures. To a large extent, the mechanical properties of layered rocks are related to the struct
Externí odkaz:
https://doaj.org/article/842f92b709d1413eb93159d907199f61