滑坡体上桩基承载力的自平衡测试

通过分析猴子石滑坡体上桩基自平衡试验实测数据,研究了桩侧阻力和桩端阻力的发展规律,着重探讨了桩端土层浸水与不浸水对试桩承载力的影响。试验结果表明:浸水的A桩的桩端阻力仅为未浸水的B桩桩端阻力的52%,而其荷载箱底板的位移(即桩端位移)在相同荷载时比B桩增大很多。试验成果可供库区同类地基条件下桩承载力评估参考和利用。

Self-balancing Test for Bearing Capacity of Pile Foundation in Landslide Body

Through analyzing the measured data of self-balanced load test on building pile foundation of houzishi landslide body,the development laws of pile side resistance and pile tip resistance are researched.More important,the influence of pile tip soil layer without soaking and with water immersion on the test pile bearing capacity is emphatically discussed.The test results reveal that the pile tip resistance of pile A reaches only 52% of that of pile B,while its load cell bottom plate displacement（namely the pile tip displacement） increases more greatly than the latter.The test results are available for the evaluating reference and utilization of bearing capacity of piles under the same foundation in reservoir area.