Abstract
The point bearing behavior of rock-socketed drilled shafts under axial loading is investigated by numerical analysis and a load transfer approach (ρ-w). A numerical analysis using the distinct element method (DEM) is carried out to investigate the effects of pile diameter and the elastic modulus, discontinuity spacing and the inclination of rock mass on the point bearing behavior. The emphasis is quantifying the point bearing mechanism by taking rock discontinuity into consideration based on field loading tests performed on 39 instrumented piles. A new hyperbolic q-w function is proposed considering the point bearing resistance influence factors, including rock mass discontinuity. Through comparisons with other field data, the proposed q-w function represents a significant improvement in the prediction of the point bearing load transfer characteristics of jointed rock-socketed drilled shafts.
| Original language | English |
|---|---|
| Pages (from-to) | 596-606 |
| Number of pages | 11 |
| Journal | Soils and Foundations |
| Volume | 53 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology
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Proposed point bearing load transfer function in jointed rock-socketed drilled shafts. / Lee, Jaehwan; You, Kwangho; Jeong, Sang Seom; Kim, Jaeyoung.
In: Soils and Foundations, Vol. 53, No. 4, 01.01.2013, p. 596-606.Research output: Contribution to journal › Article
TY - JOUR
T1 - Proposed point bearing load transfer function in jointed rock-socketed drilled shafts
AU - Lee, Jaehwan
AU - You, Kwangho
AU - Jeong, Sang Seom
AU - Kim, Jaeyoung
PY - 2013/1/1
Y1 - 2013/1/1
N2 - The point bearing behavior of rock-socketed drilled shafts under axial loading is investigated by numerical analysis and a load transfer approach (ρ-w). A numerical analysis using the distinct element method (DEM) is carried out to investigate the effects of pile diameter and the elastic modulus, discontinuity spacing and the inclination of rock mass on the point bearing behavior. The emphasis is quantifying the point bearing mechanism by taking rock discontinuity into consideration based on field loading tests performed on 39 instrumented piles. A new hyperbolic q-w function is proposed considering the point bearing resistance influence factors, including rock mass discontinuity. Through comparisons with other field data, the proposed q-w function represents a significant improvement in the prediction of the point bearing load transfer characteristics of jointed rock-socketed drilled shafts.
AB - The point bearing behavior of rock-socketed drilled shafts under axial loading is investigated by numerical analysis and a load transfer approach (ρ-w). A numerical analysis using the distinct element method (DEM) is carried out to investigate the effects of pile diameter and the elastic modulus, discontinuity spacing and the inclination of rock mass on the point bearing behavior. The emphasis is quantifying the point bearing mechanism by taking rock discontinuity into consideration based on field loading tests performed on 39 instrumented piles. A new hyperbolic q-w function is proposed considering the point bearing resistance influence factors, including rock mass discontinuity. Through comparisons with other field data, the proposed q-w function represents a significant improvement in the prediction of the point bearing load transfer characteristics of jointed rock-socketed drilled shafts.
UR - http://www.scopus.com/inward/record.url?scp=84889561720&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84889561720&partnerID=8YFLogxK
U2 - 10.1016/j.sandf.2013.06.010
DO - 10.1016/j.sandf.2013.06.010
M3 - Article
AN - SCOPUS:84889561720
VL - 53
SP - 596
EP - 606
JO - Soils and Foundations
JF - Soils and Foundations
SN - 0038-0806
IS - 4
ER -