Determination of Rock Quality Designation (RQD) through Spectral Analysis Surface Wave (SASW) and Observed Method for Granitic Rock Mass
| Main Author: | Asrillah, . |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Syiah Kuala University
, 2012
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| Online Access: |
http://www.jurnal.unsyiah.ac.id/AICS-SciEng/article/view/1834 http://www.jurnal.unsyiah.ac.id/AICS-SciEng/article/view/1834/1730 |
Daftar Isi:
- Spectral Analysis Surface Wave (SASW) and observation method were carriedout at Kajang Rock Quarry Sdn. Bhd which is located in district Semenyih-Selangor. The objective of this survey is to determinate Rock Quality Designation (RQD) of the granitic rock mass quarried from terrace 9 (highest) to terrace 7. The SASW survey was conducted with using OROS 25 and the software that used for data processing is Winsasw 3.1.3. The Rock Quality Designation (RQD) for terrace 9 varies from 45.63 % to 94.17 %. Base onSuharsono rock classification system, these two values suggest that the rock mass is easy rippable and need blasting. The RQD for terrace 8 are 40.12 %, 72.43 %, 80.35 % and 99.39 % which are classified as easy rippble, hardly rippable, required hydraulic breaker and blasting. The terrace 7 has three RQD show that the rock mass requires hydraulic breaker and blasting