Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Qiancheng Sun"'
Publikováno v:
Shuiwen dizhi gongcheng dizhi, Vol 51, Iss 2, Pp 101-112 (2024)
The rock mass structural plane constitutes the weakest part of the rock mass. Accurate and efficient identification of rock mass structural plane and extraction of characteristic information can provide an important basis for the rock mass stability
Externí odkaz:
https://doaj.org/article/41c1acd7051e4d3db598210d6294295f
Publikováno v:
Shuiwen dizhi gongcheng dizhi, Vol 51, Iss 2, Pp 77-89 (2024)
The bank slope rock mass below the flood control restricted water level (145 m) in the Three Gorges Reservoir area has experienced long-term immersion in the process of reservoir water lifting and lowering; the water level changes lead to the rock ma
Externí odkaz:
https://doaj.org/article/e2f316a9d8704bd9adc2f6a02ba35870
Publikováno v:
International Journal of Mining Science and Technology, Vol 33, Iss 4, Pp 437-446 (2023)
The damage-fracture evolution of deep rock mass has obvious particularity, which is revealed in 2400-m-deep tunnels by field tests. The evolution of the excavation damaged zone depth is consistent with that of the fractured zone depth. The ratio of t
Externí odkaz:
https://doaj.org/article/e11c7b9ef9c2475698491d327124282d
Publikováno v:
Clean Technologies, Vol 4, Iss 2, Pp 395-406 (2022)
The net-zero global carbon target for 2050 needs both expansion of renewable energy and substantive energy consumption reduction. Many of the solutions needed are expensive. Controlling HVAC systems in buildings based upon thermal comfort, not just t
Externí odkaz:
https://doaj.org/article/f9ae3be31a234f15b2d09499b0ca0dd8
Publikováno v:
Clean Technologies, Vol 3, Iss 4, Pp 743-760 (2021)
Nowadays, most indoor cooling control strategies are based solely on the dry-bulb temperature, which is not close to a guarantee of thermal comfort of occupants. Prior research has shown cooling energy savings from use of a thermal comfort control me
Externí odkaz:
https://doaj.org/article/f4b9a383ef084c9e99e53ffd323400ad
Publikováno v:
Jixie chuandong, Vol 45, Pp 142-151 (2021)
In order to solve the movement dysfunction problem of the lower limbs caused by the decline of muscle strength of the lower limbs， bone and joint diseases， cardiovascular and cerebrovascular diseases， spinal cord injury， etc.， such as the i
Externí odkaz:
https://doaj.org/article/92346b4b95b34432b83aaf542f380942
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The depth of the excavation damage zone in the surrounding rock mass is an important parameter to determine the support design scheme, and is also of great reference significance to evaluate the stability of the surrounding rock. An acoustic test is
Externí odkaz:
https://doaj.org/article/77f81d5e058e4868b6fea78bf8a4c93f
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
Creep tests on brittle sandstone specimens were performed to investigate the time-dependent characteristics in the interval of different critical stresses. The results showed that failure will not occur when the loaded stress σ1 is less than the cri
Externí odkaz:
https://doaj.org/article/435bbb9c37c84588aa80562ffd6b6aa9
Publikováno v:
Geofluids, Vol 2017 (2017)
Hydraulic fracturing is widely used to determine in situ stress of rock engineering. In this paper we propose a new method for simultaneously determining the in situ stress and elastic parameters of rock. The method utilizing the hydraulic fracturing
Externí odkaz:
https://doaj.org/article/4d7d6daebe3949b6acfb0f67d4e43f1a
Publikováno v:
Applied Sciences, Vol 9, Iss 6, p 1112 (2019)
The effect of bonding temperature on the microstructure and mechanical properties of transient liquid phase (TLP) joints of GH4169 superalloy was investigated. Joining processes were carried out at 1040–1100 °C for 30 min using BNi-2 solder paste.
Externí odkaz:
https://doaj.org/article/4f9d74a782874cb08fed5251e79b3e25