对某公路桥梁灌注桩进行了静载试验和内力测试，采用考虑桩径影响的Mindlin应力解进行了桩基沉降的数值计算，同时侧摩阻力分布形式采用矩形荷载简化和三角形荷载简化，按分层总和法计算桩端沉降，计算结果表明，采用考虑桩径影响的Mind．Iin应力解计算大直径灌注桩单桩沉降的方法具有较好的适用性。%The static load test and the internal force test of a highway-bridge bored pile have been done. The Mindlin stress solution which consider the impact of the pile diameter is adopted to the numerical calculation of the pile settlement. The pile side friction distribution forms are rectangular simplified load and triangular simplifid load. The stratified summation method is adopted to calculate the settlement of pile tip. The results show that the Mindlin stress solution which consider the pile diameter has better applicability for calculating the settlement of the single large-diameter pile.
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