Shear Wave Velocity Measurements in Tropical Peat Using In-house Device
Many people in the construction industry will agree that peat is a problematic material due to its compressibility behaviour. However, construction on these areas are inevitable because of the scarcity in space and suitable land for development. Hence, there is a need for proper in-situ testing on s...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Penerbit UMP
2022
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| Online Access: | http://umpir.ump.edu.my/id/eprint/34214/ http://umpir.ump.edu.my/id/eprint/34214/7/Shear%20Wave%20Velocity%20Measurements.pdf |
| _version_ | 1848824447571591168 |
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| author | K. T., Lee D., Youventharan |
| author_facet | K. T., Lee D., Youventharan |
| author_sort | K. T., Lee |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Many people in the construction industry will agree that peat is a problematic material due to its compressibility behaviour. However, construction on these areas are inevitable because of the scarcity in space and suitable land for development. Hence, there is a need for proper in-situ testing on soil properties before any construction work can be carried out in peat. Shear wave (S-wave) velocity (Vs ) used to compute the small strain shear modulus, (Go ) which is an essential parameter to design structures in earthquake and vibration prone areas. The most versatile method to assess is by measuring shear wave propagation through soil samples using bender elements tests (BET). Currently, BET is limited to laboratory environments, which can be time consuming and expensive. Therefore, a portable device of BET for peat has been proposed in this research which is simple to use and economical. The proposed setup consists of an oscilloscope, digital multimeter, signal generator, signal amplifier, direct current generator and a pair of piezoelectric bender elements. Peak-to-peak method from time domain (TD) technique is implemented as the method to analyse shear waves. To validate the function of the proposed device, different types of soil samples including Ottawa sand, Kaolin S300, Silty loam, Hemic, and Fibric peat were prepared. The peat samples for this study were collected from Pekan and Maran districts in Pahang, Malaysia. With a suitable frequency input from the sine wave generated, the Vs determined from the device was used to compute Go. Results show there is only a less than 10% error in when it was compared with the typical values of tropical peat. The proposed device is also effective to differentiate the type of soil sample when tested. In summary, the proposed in-house device can be used as an indicator and to find out the initial value of Vs and Go in tropical peat soil. |
| first_indexed | 2025-11-15T03:13:11Z |
| format | Article |
| id | ump-34214 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:13:11Z |
| publishDate | 2022 |
| publisher | Penerbit UMP |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-342142022-05-25T04:28:34Z http://umpir.ump.edu.my/id/eprint/34214/ Shear Wave Velocity Measurements in Tropical Peat Using In-house Device K. T., Lee D., Youventharan TA Engineering (General). Civil engineering (General) TE Highway engineering. Roads and pavements TH Building construction Many people in the construction industry will agree that peat is a problematic material due to its compressibility behaviour. However, construction on these areas are inevitable because of the scarcity in space and suitable land for development. Hence, there is a need for proper in-situ testing on soil properties before any construction work can be carried out in peat. Shear wave (S-wave) velocity (Vs ) used to compute the small strain shear modulus, (Go ) which is an essential parameter to design structures in earthquake and vibration prone areas. The most versatile method to assess is by measuring shear wave propagation through soil samples using bender elements tests (BET). Currently, BET is limited to laboratory environments, which can be time consuming and expensive. Therefore, a portable device of BET for peat has been proposed in this research which is simple to use and economical. The proposed setup consists of an oscilloscope, digital multimeter, signal generator, signal amplifier, direct current generator and a pair of piezoelectric bender elements. Peak-to-peak method from time domain (TD) technique is implemented as the method to analyse shear waves. To validate the function of the proposed device, different types of soil samples including Ottawa sand, Kaolin S300, Silty loam, Hemic, and Fibric peat were prepared. The peat samples for this study were collected from Pekan and Maran districts in Pahang, Malaysia. With a suitable frequency input from the sine wave generated, the Vs determined from the device was used to compute Go. Results show there is only a less than 10% error in when it was compared with the typical values of tropical peat. The proposed device is also effective to differentiate the type of soil sample when tested. In summary, the proposed in-house device can be used as an indicator and to find out the initial value of Vs and Go in tropical peat soil. Penerbit UMP 2022-06-01 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/34214/7/Shear%20Wave%20Velocity%20Measurements.pdf K. T., Lee and D., Youventharan (2022) Shear Wave Velocity Measurements in Tropical Peat Using In-house Device. Construction, 2 (1). pp. 22-30. ISSN 2785-8731. (Published) https://journal.ump.edu.my/construction/article/view/7404 https://doi.org/10.15282/cons.v2i1.7404 |
| spellingShingle | TA Engineering (General). Civil engineering (General) TE Highway engineering. Roads and pavements TH Building construction K. T., Lee D., Youventharan Shear Wave Velocity Measurements in Tropical Peat Using In-house Device |
| title | Shear Wave Velocity Measurements in Tropical Peat Using In-house Device |
| title_full | Shear Wave Velocity Measurements in Tropical Peat Using In-house Device |
| title_fullStr | Shear Wave Velocity Measurements in Tropical Peat Using In-house Device |
| title_full_unstemmed | Shear Wave Velocity Measurements in Tropical Peat Using In-house Device |
| title_short | Shear Wave Velocity Measurements in Tropical Peat Using In-house Device |
| title_sort | shear wave velocity measurements in tropical peat using in-house device |
| topic | TA Engineering (General). Civil engineering (General) TE Highway engineering. Roads and pavements TH Building construction |
| url | http://umpir.ump.edu.my/id/eprint/34214/ http://umpir.ump.edu.my/id/eprint/34214/ http://umpir.ump.edu.my/id/eprint/34214/ http://umpir.ump.edu.my/id/eprint/34214/7/Shear%20Wave%20Velocity%20Measurements.pdf |