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A platform for research: civil engineering, architecture and urbanism
Sustainable Vibration Screening with Dual Trenches Infilled with Geofoam and Aggregate: Full-Scale Field Experiments
https://orcid.org/https://orcid.org/0000-0002-8852-2596
https://orcid.org/https://orcid.org/0000-0001-8281-7951
https://orcid.org/https://orcid.org/0000-0002-5924-9367
Ground-borne vibrations resulting from various civil engineering activities can cause detrimental impacts on the nearby structures. Therefore, past studies have concentrated on developing vibration mitigation techniques. Vibration screening using wave barriers is a widely accepted approach, and continuous research has been ongoing in the last few decades. However, the current solutions to the problem are limited to the use of single trenches, and only limited experimental studies on open and geofoam-infilled have explored the possibilities of utilizing dual trenches. In some practical scenarios, the recommended depth of a single trench is unimplementable; further, no significant work has been observed to find suitable infill materials in screening the vibrations induced due to harmonic loading under dual trench scenarios. Hence, the current study aims to experimentally investigate the potential of dual trenches infilled with sustainable materials to mitigate the vibrations induced due to continuous harmonic loading. The influence of the filling accomplished by two types of material, namely, a softer one like geofoam (G) and a stiffer one like aggregate (A), has been evaluated and compared to the soil. Thereafter, these materials were interchanged in the trenches. The harmonic loading was applied using a Lazan-type mechanical oscillator. The associated vertical particle acceleration due to wave propagation was captured using an accelerometer positioned at a distance of 1 m from the second trench. The results indicate that infilling the first trench with aggregate improves isolation efficacy. Furthermore, the optimal depth required to reach an amplitude reduction ratio of 0.25 was observed as 0.25LR (LR= Rayleigh wavelength) and 0.34LR for the dual trenches filled with aggregate and geofoam (A + G), and geofoam and aggregate (G + A), respectively.
Sustainable Vibration Screening with Dual Trenches Infilled with Geofoam and Aggregate: Full-Scale Field Experiments
https://orcid.org/https://orcid.org/0000-0002-8852-2596
https://orcid.org/https://orcid.org/0000-0001-8281-7951
https://orcid.org/https://orcid.org/0000-0002-5924-9367
Ground-borne vibrations resulting from various civil engineering activities can cause detrimental impacts on the nearby structures. Therefore, past studies have concentrated on developing vibration mitigation techniques. Vibration screening using wave barriers is a widely accepted approach, and continuous research has been ongoing in the last few decades. However, the current solutions to the problem are limited to the use of single trenches, and only limited experimental studies on open and geofoam-infilled have explored the possibilities of utilizing dual trenches. In some practical scenarios, the recommended depth of a single trench is unimplementable; further, no significant work has been observed to find suitable infill materials in screening the vibrations induced due to harmonic loading under dual trench scenarios. Hence, the current study aims to experimentally investigate the potential of dual trenches infilled with sustainable materials to mitigate the vibrations induced due to continuous harmonic loading. The influence of the filling accomplished by two types of material, namely, a softer one like geofoam (G) and a stiffer one like aggregate (A), has been evaluated and compared to the soil. Thereafter, these materials were interchanged in the trenches. The harmonic loading was applied using a Lazan-type mechanical oscillator. The associated vertical particle acceleration due to wave propagation was captured using an accelerometer positioned at a distance of 1 m from the second trench. The results indicate that infilling the first trench with aggregate improves isolation efficacy. Furthermore, the optimal depth required to reach an amplitude reduction ratio of 0.25 was observed as 0.25LR (LR= Rayleigh wavelength) and 0.34LR for the dual trenches filled with aggregate and geofoam (A + G), and geofoam and aggregate (G + A), respectively.
Sustainable Vibration Screening with Dual Trenches Infilled with Geofoam and Aggregate: Full-Scale Field Experiments
https://orcid.org/https://orcid.org/0000-0002-8852-2596
https://orcid.org/https://orcid.org/0000-0001-8281-7951
https://orcid.org/https://orcid.org/0000-0002-5924-9367
Ground-borne vibrations resulting from various civil engineering activities can cause detrimental impacts on the nearby structures. Therefore, past studies have concentrated on developing vibration mitigation techniques. Vibration screening using wave barriers is a widely accepted approach, and continuous research has been ongoing in the last few decades. However, the current solutions to the problem are limited to the use of single trenches, and only limited experimental studies on open and geofoam-infilled have explored the possibilities of utilizing dual trenches. In some practical scenarios, the recommended depth of a single trench is unimplementable; further, no significant work has been observed to find suitable infill materials in screening the vibrations induced due to harmonic loading under dual trench scenarios. Hence, the current study aims to experimentally investigate the potential of dual trenches infilled with sustainable materials to mitigate the vibrations induced due to continuous harmonic loading. The influence of the filling accomplished by two types of material, namely, a softer one like geofoam (G) and a stiffer one like aggregate (A), has been evaluated and compared to the soil. Thereafter, these materials were interchanged in the trenches. The harmonic loading was applied using a Lazan-type mechanical oscillator. The associated vertical particle acceleration due to wave propagation was captured using an accelerometer positioned at a distance of 1 m from the second trench. The results indicate that infilling the first trench with aggregate improves isolation efficacy. Furthermore, the optimal depth required to reach an amplitude reduction ratio of 0.25 was observed as 0.25LR (LR= Rayleigh wavelength) and 0.34LR for the dual trenches filled with aggregate and geofoam (A + G), and geofoam and aggregate (G + A), respectively.
Sustainable Vibration Screening with Dual Trenches Infilled with Geofoam and Aggregate: Full-Scale Field Experiments
Lecture Notes in Civil Engineering
Kioumarsi, Mahdi (editor) / Shafei, Behrouz (editor) / Chakrabortty, Pradipta (author) / Jauhari, Nitish (author) / Kumar, Raja (author) / Barbieri, Diego Maria (author)
The International Conference on Net-Zero Civil Infrastructures: Innovations in Materials, Structures, and Management Practices (NTZR) ; 2024 ; Oslo, Norway
The 1st International Conference on Net-Zero Built Environment ; Chapter: 122 ; 1463-1472
2025-01-09
10 pages
Article/Chapter (Book)
Electronic Resource
English
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