大庆粘性土地区静压PHC管桩竖向极限承载力与终压力关系研究

摘要

利用SPSS统计软件对大庆粘性土地区24根静压PHC管桩静载试验数据进行了统计分析.探讨了大庆粘性土地区静压PHC管桩单桩竖向极限承载力与沉桩终压力之间的关系.得到大庆粘性土地区静压PHC管桩单桩竖向极限承载力与沉桩终压力之间的区域经验公式.根据此经验公式既可以合理地选择压桩机型及配重,也可以快速估算出单桩竖向极限承载力,用以指导静压预应力混凝土管桩的设计和施工.%The static load test data of 24 jacked-in PHC pipe pile in the cohesive soil region of Daqing is analyzed statistically with software SPSS in this article. The relationship of vertical ultimate bearing capacity and final pressure of jacked-in PHC pipe pile in the cohesive soil region of Daqing is discussed. The regional empirical formula about vertical ultimate bearing capacity and final pressure of Jacked-in PHC pipe pile in the cohesive soil region of Daqing is obtained. According to the empirical formula, we can reasonably select the piling machine and rapidly estimate the vertical ultimate bearing capacity of single pile then instruct the design and construction.