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Rock bearing resistance of bored piles socketed into rock
Eda Suhaili Sharudin1, Nor Zurairahetty Mohd Yunus2, Aminaton Marto3, Siti Norafida Jusoh4, Kamarudin Ahmad5, Fauziah Kasim6, Rini Asnida Abdullah7, Muhammad Azril Hezmi8.
In view of the large movement required to mobilise the base resistance of bored piles and
difficulty in base cleaning, the end bearing resistance often ignored in current design practice
that will result in excessive rock socket length. Many attempts have been made to correlate
the end bearing resistance with the uniaxial compressive strength of intact rock and the RQD
but it is uncertain how applicable they are to rock type in Malaysia. This paper attempts to
review the applicability of the formulas from previous studies to rock type in Malaysia. A
program of field tests for 13 bored piles with diameter varying from 1000 mm to 1500 mm
constructed in granite was conducted to measure the axial response of bored piles, tested
using static load test and high strain load dynamic test to verify its integrity and performance.
The results were evaluated and compared to the predicted rock bearing resistance. Based on
the result obtained, the method by AASHTO gives the best prediction of rock bearing resistance
for granite in Malaysia. However the relationship between compressive strength and rock
discontinuities with the rock bearing resistance showed scattered results.
Affiliation:
- HLA Sdn. Bhd. (Kuala Lumpur), Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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