Reliability design of anchoring depth for friction piles

Based on the definitive principle of anchoring depth for friction piles,as well as different strata of anchorage zone and form of foundation coefficient,mathematical model for the reliability design of anchoring depth was established.Monte Carlo method was intruduced into this model to analyze the similarities and differences between the conventional design and reliability design with a case.It was considered that the reliability design was closer to the reality because it regarded the calculated parameter as the random variable.It could also educe the risk level taken on friction piles,and at the same time it was considered that the friction piles might not satisfy the condition of reliability design even though they could satisfy the condition of conventional design.