摘要
该文研究了粘性土中锚杆板桩挡土墙锚杆抗拉力设计的可靠性问题。极限状态方程的建立是根据常规设计值与考虑土性参数变异性的可能发生值之差来表示的。采用可靠度分析的改进一次二阶矩法（ＡＦＯＳＭ），假定粘性土的重度、粘聚力、内摩擦角为互相独立的随机变量，分析了它们对于锚杆抗拉力可靠性的影响。
The reliability of anchor rod tension resistance design of the anchored sheet-piling is studied in this paper. The establislunent of the ultimate state equations is erpressed on the basis of the difference between the design force and the evaluated force considering the variability of geotechnical parameters. Adopting the AFOSM method of reliability analysis, assuming the unit weight, cohesion and internal friction are mutually independent stochastic variables, their influence on the reliability of the tension resistance of the anchor rod has been analzed.
出处
《勘察科学技术》
1999年第3期14-18,共5页
Site Investigation Science and Technology
关键词
可靠度指标
土压力
粘土
锚杆板桩墙
锚杆抗拉力
safety margin
limit state equation
AFOSM method
reliability index
earth pressure
