Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Qingxiang Cai"'
Autor:
Qingxiang CAI, Yanlong CHEN
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 235-260 (2024)
As an important component of China’s coal industry, surface coal mines have the advantages of large production capacity, low mining costs, and great safety conditions. In recent years, surface coal mines in China have achieved a leapfrog developmen
Externí odkaz:
https://doaj.org/article/ce082717fe2b40b8bc59bb28455937ed
Autor:
Guangfang Zhang, Junqin Ma, Weirong Lu, Hongrui Zhan, Xuefei Zhang, Kangling Wang, Yingxuan Hu, Xianglong Wang, Weiwei Peng, Shouwei Yue, Qingxiang Cai, Wen Liang, Wen Wu
Publikováno v:
Frontiers in Aging Neuroscience, Vol 14 (2022)
ObjectiveThe purposes of this study are to explore (1) whether comorbid depressive symptoms in patients with chronic back pain (CBP) affect the pain matrix. And (2) whether the interaction of depression and CBP exacerbates impaired brain function.Met
Externí odkaz:
https://doaj.org/article/3436e361f7804b0ca97050511578052a
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
The water-sediment two-phase flow in the rough fracture is one of the main causes of water-sediment inrush. In this study, numerical simulation models of the water-sediment two-phase flow in the smooth and rough fractures were established by ANSYS Fl
Externí odkaz:
https://doaj.org/article/1fc1948a671e40728c59836f02c2a725
Publikováno v:
Geofluids, Vol 2022 (2022)
To explore the rheological mechanism of cement-coal gangue cementitious material (CGCM) slurry, the effects of the activation temperature (500°C-900°C) of coal gangue on the initial fluidity, plastic viscosity (η0), and yield stress (τ0) of CGCM
Externí odkaz:
https://doaj.org/article/e555d06b429b41c1975a8d3675c19cec
Autor:
Tongsuo Guo, Wei Zhou, Zhaolin Li, Chuanwei Zhang, Qingxiang Cai, Ya Tian, Huairui Qin, Fuming Liu, Izhar Mithal Jiskani, Dongxu Zhang
Publikováno v:
Geofluids, Vol 2021 (2021)
This study presents different land saving and loss reducing schemes. Comprehensively compare the economic benefits of the schemes. It is shown that the optimal scheme can recover tons of coal resources on the south slope, creating significant economi
Externí odkaz:
https://doaj.org/article/978f1add562341a5ac0aa3ad593b37bb
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
The strength criterion is an extremely important basis for evaluating the stability of surrounding rock and optimizing the support pressure design. In this paper, nine different strength criteria are summarized and simplified based on the reasonable
Externí odkaz:
https://doaj.org/article/f5a1a0c5dee446728ad46e3322bf991f
Publikováno v:
Geofluids, Vol 2020 (2020)
Excavation disturbance on the dynamic variation of the three-dimensional stress field is the main cause for the dynamic disasters of the surrounding rock mass of the roof. The stress condition in the surrounding rock mass of the roof during entry exc
Externí odkaz:
https://doaj.org/article/0757208ee3b24705ac2b5854e8b72872
Autor:
Shiyou Gao, Wei Zhou, Xuyang Shi, Qingxiang Cai, Garmondyu E. Crusoe, Jr., Shu Jisen, Yuejun Huang
Publikováno v:
International Journal of Mining Science and Technology, Vol 27, Iss 3, Pp 545-550 (2017)
In-situ experiments were conducted to investigate the mechanical properties of the soil-rock mixture in the internal dump of the Shengli #1 Surface Coal Mine, China. Based on the experimental results, this study used comparative analysis and found th
Externí odkaz:
https://doaj.org/article/bad2c72fc12040bd8f7cce85120ec2ea
Publikováno v:
International Journal of Mining Science and Technology, Vol 27, Iss 2, Pp 365-370 (2017)
In order to study the stability control mechanism of a concave slope with circular landslide, and remove the influence of differences in shape on slope stability, the limit analysis method of a simplified Bishop method was employed. The sliding body
Externí odkaz:
https://doaj.org/article/81fdb11df6af424aac82fa6c60fac99e
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