预应力管桩水平承载力现场试验与计算研究

摘要

Combined with the single pile horizontal static load test in Shanghai and the data of the bending mo- ment of pile, research the bearing capacity of PHC pile under the action of horizontal load. According to the test data, determining the level of ultimate bearing capacity of foundation soil, the horizontal resistance coefficient ratio were analyzed, and the measured results and the current specification using "m" method the calculated results were compared with those obtained from analysis, some conclusions for the future Shanghai area of horizontal bearing ca- pacity of single pile design and theoretical research to provide reference.%结合上海地区某工程中的单桩水平静载荷试验，并采用实测桩身弯矩的数据，研究预应力管桩在水平荷载作用下的受力性状。根据试验实测数据，对试验确定水平承载力的取值、地基土的水平抗力比例系数等进行分析，并将实测结果与目前规范中采用的m法计算结果进行比较分析，从中得到一些结论为今后上海地区单桩水平承载力的设计和理论研究提供参考。