Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes
Boulder is often posed challenges to earthwork activities such as cut slope and foundation excavation especially in tropical weathered rock like Malaysia. In addition, the guidelines for hard material or rock excavation related to boulder provided by Department of Works Malaysia (JKR) are limited an...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2020
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| Online Access: | http://eprints.utm.my/90842/1/MohdFirdausMd2020_ClassificationonShapeofGranitoidBoulderBased.pdf |
| _version_ | 1796865110295183360 |
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| author | Md. Dan @ Azlan, Mohd. Firdaus Marcos, Marcelia Naja Mohammad, Edy Tonnizam Komoo, Ibrahim Madun, Aziman |
| author_facet | Md. Dan @ Azlan, Mohd. Firdaus Marcos, Marcelia Naja Mohammad, Edy Tonnizam Komoo, Ibrahim Madun, Aziman |
| author_sort | Md. Dan @ Azlan, Mohd. Firdaus |
| collection | ePrints |
| description | Boulder is often posed challenges to earthwork activities such as cut slope and foundation excavation especially in tropical weathered rock like Malaysia. In addition, the guidelines for hard material or rock excavation related to boulder provided by Department of Works Malaysia (JKR) are limited and there is a need to be revised. Therefore, this study aims to establish a classification chart of boulder's shape in different weathering zones for site investigation purposes. The parameters of size, volume and characteristics of surface roughness from moderately to completely weathered zone were measured and analysed statistically. Results of this study show that the increase of weathering zone from zone 3 to 5 significantly reducing the size and volume of boulder with reduction of 27% and 38.3%, respectively. Boulder in Zone 3 to Zone 5 can be classified into six typical sphericities: very flat, flat, sub- flat, sub-spherical, spherical and well-spherical. The results also revealed that the physical parameters of boulder can be classified into six classes based on Roundness Ratio (Rr) and Surface Roughness Index (SRI). Based on these results, a boulder shape classification chart was developed and useful as a guideline for engineering application especially in soil investigation purposes. |
| first_indexed | 2024-03-05T20:51:58Z |
| format | Conference or Workshop Item |
| id | utm.eprints-90842 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T20:51:58Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | utm.eprints-908422021-05-31T13:39:55Z http://eprints.utm.my/90842/ Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes Md. Dan @ Azlan, Mohd. Firdaus Marcos, Marcelia Naja Mohammad, Edy Tonnizam Komoo, Ibrahim Madun, Aziman TA Engineering (General). Civil engineering (General) Boulder is often posed challenges to earthwork activities such as cut slope and foundation excavation especially in tropical weathered rock like Malaysia. In addition, the guidelines for hard material or rock excavation related to boulder provided by Department of Works Malaysia (JKR) are limited and there is a need to be revised. Therefore, this study aims to establish a classification chart of boulder's shape in different weathering zones for site investigation purposes. The parameters of size, volume and characteristics of surface roughness from moderately to completely weathered zone were measured and analysed statistically. Results of this study show that the increase of weathering zone from zone 3 to 5 significantly reducing the size and volume of boulder with reduction of 27% and 38.3%, respectively. Boulder in Zone 3 to Zone 5 can be classified into six typical sphericities: very flat, flat, sub- flat, sub-spherical, spherical and well-spherical. The results also revealed that the physical parameters of boulder can be classified into six classes based on Roundness Ratio (Rr) and Surface Roughness Index (SRI). Based on these results, a boulder shape classification chart was developed and useful as a guideline for engineering application especially in soil investigation purposes. 2020-06-15 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/90842/1/MohdFirdausMd2020_ClassificationonShapeofGranitoidBoulderBased.pdf Md. Dan @ Azlan, Mohd. Firdaus and Marcos, Marcelia Naja and Mohammad, Edy Tonnizam and Komoo, Ibrahim and Madun, Aziman (2020) Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes. In: 5th International Conference on Civil and Environmental Engineering for Sustainability, IConCEES 2019, 19 December 2019 - 20 December 2019, Johor, Malaysia. http://dx.doi.org/10.1088/1755-1315/498/1/012005 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Md. Dan @ Azlan, Mohd. Firdaus Marcos, Marcelia Naja Mohammad, Edy Tonnizam Komoo, Ibrahim Madun, Aziman Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| title | Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| title_full | Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| title_fullStr | Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| title_full_unstemmed | Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| title_short | Classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| title_sort | classification on shape of granitoid boulder based on size and surface roughness from various weathering zones for site investigation purposes |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/90842/1/MohdFirdausMd2020_ClassificationonShapeofGranitoidBoulderBased.pdf |
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