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A platform for research: civil engineering, architecture and urbanism
Machine-Induced Vibration Isolation Using Geocell Reinforcement
The present study aims to investigate the vibration isolation efficacy of the geocell reinforcement through the numerical simulation technique. The explicit finite difference package, FLAC3D was chosen for the dynamic simulations. Initially, the developed numerical models were validated with the results of the vertical mode block resonance test. The behaviour of soil bed and concrete footing was simulated using Mohr–Coulomb and linear elastic models, respectively. The geocell was modelled using two techniques, namely Equivalent Composite Approach (ECA) and Honeycomb-Shaped Approach (HSA). The results revealed that the use of the geocells reduce the resonant displacement amplitude by 56% and increase the natural frequency of the soil–foundation system by 42% as compared to the unreinforced bed. As compared to the experimental results, the ECA modelling technique was found to overestimate the improvement in resonant frequency and the reduction in displacement amplitude by 4% and 10%, respectively, in the presence of geocells.
Machine-Induced Vibration Isolation Using Geocell Reinforcement
The present study aims to investigate the vibration isolation efficacy of the geocell reinforcement through the numerical simulation technique. The explicit finite difference package, FLAC3D was chosen for the dynamic simulations. Initially, the developed numerical models were validated with the results of the vertical mode block resonance test. The behaviour of soil bed and concrete footing was simulated using Mohr–Coulomb and linear elastic models, respectively. The geocell was modelled using two techniques, namely Equivalent Composite Approach (ECA) and Honeycomb-Shaped Approach (HSA). The results revealed that the use of the geocells reduce the resonant displacement amplitude by 56% and increase the natural frequency of the soil–foundation system by 42% as compared to the unreinforced bed. As compared to the experimental results, the ECA modelling technique was found to overestimate the improvement in resonant frequency and the reduction in displacement amplitude by 4% and 10%, respectively, in the presence of geocells.
Machine-Induced Vibration Isolation Using Geocell Reinforcement
Lecture Notes in Civil Engineering
Latha Gali, Madhavi (editor) / Raghuveer Rao, P. (editor) / Ujjawal, K. N. (author) / Hegde, A. (author)
2020-09-13
17 pages
Article/Chapter (Book)
Electronic Resource
English
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