Results 11 to 20 of about 72,193 (346)
Meitan xuebaoControllable shockwave technology, as a new type of coal seam penetration enhancement technology, has the characteristics of safety and reliability, high energy utilisation, and the number of impacts and energy can be controlled, etc.
Guodong QIAO +10 more
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Case Studies in Construction Materials, 2023 Cracking is a prevalent issue in expressway pavements in Shanxi Province, exhibiting various types. Based on field investigations, the primary types of asphalt pavement cracks observed in Shanxi expressways can be categorized as top-down crack (TDC ...
Xu Xia +5 more
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SN Applied Sciences, 2022 In order to study the extension behavior of dry shrinkage type reflective cracks in asphalt pavements, this paper uses the differential equation theory to derive the calculation formula for the inhomogeneous gradient distribution of dry shrinkage stress ...
Min Min Xiao, Lin Fan
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Effects of dip angle and length of open joints on dynamic properties of materials like rock
矿业科学学报, 2022 In order to investigate the influence of tensioned joints on the dynamic mechanical properties of rock-like materials under impact loading, investigated the stress wave propagation characteristics, peak bearing capacity, damage pattern and damage law ...
Kang Yiqiang +5 more
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Multi-cracks Modeling in Reflective Cracking [PDF]
, 2012 Reflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation. The stress concentration in the overlay
Pais, Jorge +2 more
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Accelerated Laboratory Testing for Reflective Cracking [PDF]
Romanian Journal of Transport Infrastructure, 2021 Abstract One of the most used methods of rehabilitation of road structures is the laying of a protective asphalt layer over a degraded concrete. The main problem of this solution is the reflective cracking, more precisely the transmission of the existing cracks in the lower layer in the asphalt pavement.
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Shenzhen Daxue xuebao. Ligong ban, 2023 In order to evaluate the anti-reflective cracking performance of high viscosity and high elasticity asphalt mixture (HVHEAM) for ultra-thin wear layer, the improved overlay tester was used to study the effects of different gradation, asphalt content and ...
ZHANG Caili +4 more
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Engineering, 2022 An earthquake is usually followed by a considerable number of aftershocks that play a significant role in earthquake-induced landslides. During the aftershock, the cracking process in rocks becomes more complex because of the formation of faults.
Xiaoping Zhang +3 more
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Presenting a Statistical Model of Fatigue Prediction for the Effect of Loading Frequency on Reflective Cracks Propagation on Asphalt Layers Improved by Geosynthetics [PDF]
Journal of Rehabilitation in Civil EngineeringSo far, several methods have been proposed for delaying the reflective cracks in pavements. Despite substantial money spent annually on these types of maintenance methods to control reflection cracking in road pavement, none of them has successfully ...
Saeid Asadi, Gholamali Shafabakhsh
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Simulation of Impedance Discontinuities Resulting from Degradation of Interconnections on Printed Circuit Boards [PDF]
, 2011 Numerical simulation of impedance discontinuities resulting from degradation of interconnections on printed circuit ...
Dipartimento Di Elettronica +7 more
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