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Effects of Construction on Laterally Loaded Pile Groups |
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| Authors: | An-Bin Huang Chao-Kuang Hsueh Michael W. O'Neill S. Chern C. Chen |
| Affiliation: | 11Prof., Dept. of Civ. Engrg., Nat. Chiao Tung Univ., Hsin Chu 300, Taiwan. 22Grad. Res. Asst., Dept. of Harbor and River Engrg., Nat. Taiwan Oc. Univ., Keelung 202, Taiwan. 33Prof., Dept. of Civ. Envir. Engrg., Univ. of Houston, Houston, TX 77004. 44Prof., Dept. of Harbor and River Engrg., Nat. Taiwan Oc. Univ., Keelung 202, Taiwan. 55Prof., Dept. of Civ. Engrg., Nat. Taiwan Univ., Taipei 100, Taiwan. |
| Abstract: | Full-scale lateral load tests on a group of bored and a group of driven precast piles were carried out as part of a research project for the proposed high-speed rail system in Taiwan. Standard penetration tests, cone penetration tests (CPT), and Marchetti Dilatometer tests (DMT) were performed before the pile installation. The CPT and DMT were also conducted after pile installation. Numerical analyses of the laterally loaded piles were conducted using p-y curves derived from preconstruction and postconstruction DMT and by applying the concept of p multipliers. Comparisons between preconstruction and postconstruction CPT and DMT data and evaluation of the results of computations show that the installation of bored piles softened the surrounding soil, whereas the driven piles caused a densifying effect. |
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