Research Article
Reliability Assessment on Pile Foundation Bearing Capacity Based on the First Four Moments in High-Order Moment Method
Table 3
Probability model and statistical parameters of basic random variables.
| Random variance | Probability distribution | Mean | COV (%) |
| Ultimate lateral resistance of miscellaneous fill, qs1 | Normal | 22 (kPa) | 30 | Ultimate lateral resistance of gravel with cohesive soil, qs2 | Normal | 100 (kPa) | 30 | Ultimate lateral resistance of strongly-weathered granite, qs3 | Normal | 120 (kPa) | 30 | Ultimate tip resistance of strongly-weathered granite, qp | Lognormal | 1,800 (kPa) | 30 | Vertical loads on tip of the pile of no. 6, Fk6 | Lognormal | 3,200 (kN) | 7 | Vertical loads on tip of the pile of no. 9, Fk9 | Lognormal | 4,600 (kN) | 7 | Vertical loads on tip of the pile of no. 87, Fk87 | Lognormal | 1,750 (kN) | 7 | Vertical loads on tip of the pile of no. 156, Fk156 | Lognormal | 4,000 (kN) | 7 | Weight of bearing platform and soil, | Lognormal | 30 (kN) | 2 |
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