Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Chuanqi Li"'
Publikováno v:
Underground Space, Vol 18, Iss , Pp 273-294 (2024)
This study aims to predict the migration time of toxic fumes induced by excavation blasting in underground mines. To reduce numerical simulation time and optimize ventilation design, several back propagation neural network (BPNN) models optimized by
Externí odkaz:
https://doaj.org/article/b263a44d21b8451a956ec7fad73ee218
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1522-1537 (2024)
Flexible damping technology considering aseismic materials and aseismic structures seems be a good solution for engineering structures. In this study, a constrained damping structure for underground tunnel lining, using a rubber-sand-concrete (RSC) a
Externí odkaz:
https://doaj.org/article/bbda42fd697e4153988cf8e9e64bab1c
Publikováno v:
Journal of Hydrology: Regional Studies, Vol 54, Iss , Pp 101847- (2024)
Study region: Nine representative cities in Shandong Province, northern China Study focus: The analytical stochastic approach is computationally-efficient in green roofs (GRs)’ hydrologic performances. However, use of rainfall event separation meth
Externí odkaz:
https://doaj.org/article/e8a21c769b2c4556a3a3e5bf759ca5cf
Publikováno v:
Underground Space, Vol 14, Iss , Pp 70-98 (2024)
The technical challenges associated with deep underground space activities have become increasingly significant. Among these challenges, one major concern is the assessment of rockburst risks and the instability of rock masses. Extensive research has
Externí odkaz:
https://doaj.org/article/9235ff022b834a0eaba5cc14eac2e745
Publikováno v:
Geoscience Frontiers, Vol 15, Iss 2, Pp 101769- (2024)
This study utilizes a semantic-level computer vision-based detection to characterize fracture traces of hard rock pillars in underground space. The trace images captured by photogrammetry are used to establish the database for training two convolutio
Externí odkaz:
https://doaj.org/article/c2a63ffa63474cc8938acc19fd430edf
Publikováno v:
Applied Sciences, Vol 14, Iss 14, p 6164 (2024)
Borehole breakouts significantly influence drilling operations’ efficiency and economics. Accurate evaluation of breakout size (angle and depth) can enhance drilling strategies and hold potential for in situ stress magnitude inversion. In this stud
Externí odkaz:
https://doaj.org/article/527b6976feb14444a5ce5a6746ecdc69
Publikováno v:
Applied Sciences, Vol 14, Iss 14, p 6264 (2024)
Accurate prediction of the thermal conductivity of ethylene glycol (EG) and aluminum oxide (Al2O3) nanofluids is crucial for improving the utilization rate of energy in industries such as electronics cooling, automotive, and renewable energy systems.
Externí odkaz:
https://doaj.org/article/743877654a074af482c7404d1068db57
Publikováno v:
International Journal of Mining Science and Technology, Vol 33, Iss 8, Pp 1019-1036 (2023)
Hard rock pillar is one of the important structures in engineering design and excavation in underground mines. Accurate and convenient prediction of pillar stability is of great significance for underground space safety. This paper aims to develop hy
Externí odkaz:
https://doaj.org/article/8e83094ca065458a88337ddd83716b4a
Publikováno v:
Knowledge, Vol 3, Iss 2, Pp 128-148 (2023)
Predicting the post-blast re-entry time precisely can improve productivity and reduce accidents significantly. The empirical formulas for the time prediction are practical to implement, but lack accuracy. In this study, a novel method based on the ba
Externí odkaz:
https://doaj.org/article/3b4a96fab4e241c880b296c8725a9268
Publikováno v:
Frontiers in Environmental Science, Vol 11 (2023)
Accurate rainfall-runoff modeling is crucial for disaster prevention, mitigation, and water resource management. This study aims to enhance precision and reliability in predicting runoff patterns by integrating physical-based models like HEC-HMS with
Externí odkaz:
https://doaj.org/article/b8472f0779384edab33be2eb25879a14