A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic Verification of Static Load Testing of Pin-Piles in Seattle
In the Seattle area small diameter driven piles, known as pin-piles, are sometimes used to support small to moderate sized structures and for underpinning foundations. Seattle regulations impose a maximum allowable load of 18 kN on 60 mm diameter pipe driven with a 0.4 kN jack hammer, unless static load tests are performed. However, static load tests are often expensive due to difficulties providing site access and suitable reaction loads. Previous testing has shown that 60 mm piles develop axial capacities much greater than 18 kN with very small pile penetration or elastic shortening. We performed static and dynamic tests on three driven 60 mm steel pipe piles coupled with CAPWAP analysis. The results indicated that dynamic tests with a small drop weight and the PDA provide a reasonable correlation with static load test results. The results also indicate the dynamic testing is suitable for capacity verification of pin piles in the Seattle area, and that current overly conservative limits can probably be safely increased.
Dynamic Verification of Static Load Testing of Pin-Piles in Seattle
In the Seattle area small diameter driven piles, known as pin-piles, are sometimes used to support small to moderate sized structures and for underpinning foundations. Seattle regulations impose a maximum allowable load of 18 kN on 60 mm diameter pipe driven with a 0.4 kN jack hammer, unless static load tests are performed. However, static load tests are often expensive due to difficulties providing site access and suitable reaction loads. Previous testing has shown that 60 mm piles develop axial capacities much greater than 18 kN with very small pile penetration or elastic shortening. We performed static and dynamic tests on three driven 60 mm steel pipe piles coupled with CAPWAP analysis. The results indicated that dynamic tests with a small drop weight and the PDA provide a reasonable correlation with static load test results. The results also indicate the dynamic testing is suitable for capacity verification of pin piles in the Seattle area, and that current overly conservative limits can probably be safely increased.
Dynamic Verification of Static Load Testing of Pin-Piles in Seattle
Mann, G. (author) / Holtz, R. D. (author) / Maloney, D. (author)
International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States
Contemporary Topics in Deep Foundations ; 637-644
2009-03-10
Conference paper
Electronic Resource
English
Dynamic Verification of Static Load Testing of Pin-Piles in Seattle
| British Library Conference Proceedings | 2009
Static and Dynamic Testing of Piles
| British Library Conference Proceedings | 1994
Dynamic and Static Load Testing of Model Piles Driven into Dense Sand
| British Library Online Contents | 1999