Zobrazeno 1 - 10
of 737
pro vyhledávání: '"Damage characteristics"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 10, Pp 90-102 (2024)
Stabilizing the surrounding rock provides an important environmental safeguard for tunnel blasting. To investigate the damage characteristics and rupture mechanism of the surrounding rock in long-distance tunnels under cyclic explosive loading, it ta
Externí odkaz:
https://doaj.org/article/8ac74f5350b44458a4e92f77991833ff
Publikováno v:
Alexandria Engineering Journal, Vol 109, Iss , Pp 831-840 (2024)
The mechanical properties of concrete structures change under repeated sulfate salt erosion, a transformation observable through the evolving energy characteristics during compression. This study conducts uniaxial compression tests on ordinary concre
Externí odkaz:
https://doaj.org/article/173c873a378940b3b8b96539e7e59331
Autor:
Junjun Liu, Chuo Zhang, Lei Yang, Xuemin Zhou, Jing Xie, Bengao Yang, Zhiqiang He, Mingzhong Gao
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-33 (2024)
Abstract In order to explore the damage characteristics and crack development laws of hard rock under laser irradiation, laser irradiation experiments on sandstone were conducted considering the interaction of three laser parameters: spot diameter, l
Externí odkaz:
https://doaj.org/article/09006f1898094c81a796df2897dc8a21
Autor:
Xiaolei Wang, Junjie Cheng
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Protective layer mining is the most effective and economical technical measure to prevent coal and gas outburst accidents. At present, in the study of multiple concentrated coal layer stress, plastic damage and mining pressure discharge rang
Externí odkaz:
https://doaj.org/article/2ab5be75199142b5934f8a4896b6d648
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-15 (2024)
Abstract The shale’s multi-scale mechanical behaviors were investigated to understand the time-dependent damage characteristics induced by shale–fluid interaction. The test results indicate that, as fluid–shale interaction proceeds, the mechani
Externí odkaz:
https://doaj.org/article/41ced8e0103a471cb932f2536bb0522a
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 7, Pp 909-924 (2024)
During the process of constructional backfill mining, the cemented paste backfill (CPB) typically exhibits a high degree of brittleness and limited resistance to failure. In this study, the mechanical and damage evolution characteristics of waste tir
Externí odkaz:
https://doaj.org/article/4a8fc8ceaf8d4d809c1bef9b06c6ad16
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract In order to study the damage properties of red sandstone under combined action of temperature, water and stress, the uniaxial compression test was carried out for red sandstone after immersing in water for 0.5 h, 1 h and 3 h at 25 ℃, 55
Externí odkaz:
https://doaj.org/article/543b443707d14bbfa4f2fdf9601a5ab8
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 19, Iss 3, Pp 127-133 (2024)
ObjectiveThis paper aims to explore the influence of a warhead's nose shape on penetrating homogeneous metallic plates. MethodsA series of armor-piercing penetration tests are performed by launching sharp and blunt-nosed projectiles from a 92 mm smoo
Externí odkaz:
https://doaj.org/article/bfc73c82b3fb40afb71af8b16570b473
Publikováno v:
Frontiers in Materials, Vol 11 (2024)
To study the damage characteristics and damage model of reinforced concrete slabs under explosive impact, the failure modes of reinforced concrete slabs under near-field and contact explosion were first studied through on-site experiments. A coupled
Externí odkaz:
https://doaj.org/article/6a161863377841d985599ed8817690b1
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
To study the failure of red sandstone under extremely high stress during the service life of tunnels, an in-depth study was conducted on the mechanical properties of red sandstone under uniaxial loading and cyclic loading and unloading processes at d
Externí odkaz:
https://doaj.org/article/ed387ec35e6e44199a3bb655fd024dbe