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根据佛开高速公路改扩建工程建设特点,对佛开高速公路拓宽加筋陡路堤设计方案进行离心模型试验,确定该设计的安全可靠度。通过不加筋和加筋拓宽路堤模型试验,对比分析加筋对拓宽路堤位移的影响,获得加筋路堤稳定性的增强幅度。改变加筋层的间距,寻找加筋间距对路堤变形的影响规律,确定合理的加筋层间距。
According to the construction characteristics of Fokai Expressway reconstruction and expansion project, the centrifuge model test was conducted on the design scheme of broadened and reinforced steep embankment of Fokai Expressway, and the safety and reliability of the design was confirmed. The model tests of widening embankment without reinforcement and reinforcement are carried out to compare and analyze the influence of reinforcement on the displacement of widening embankment so as to obtain the enhancement of the stability of reinforced embankment. Change the spacing of the stiffened layer and find out the law of influence of the stiffened spacing on the deformation of the embankment and determine the reasonable stiffened layer spacing.