中文摘要：

根据桩、锥在软黏土中贯入的特点,用小孔扩张理论模拟其贯入过程,推导出桩、锥贯入时产生的超静孔隙水压力解析式.基于该解析解,研究了贯入过程中桩和孔压静力触探探头在对应位置产生的孔隙水压力之间的理论关系.孔压静力触探试验成果、理论计算值与现场桩周孔隙水压力监测数据对比分析结果表明,利用孔压静力触探试验预估沉桩瞬时产生的孔压在理论上和工程实践中都是可行的.

英文摘要：

According to the penetration characteristics of piezocone probes and piles in soft clay,their penetration processes were simulated by means of the cavity expansion theory.An analytical expression for the excess pore water pressure induced by the penetration of the probes and piles was derived.Based on the solutions to the expression,a theoretical relation of the pore water pressure due to penetration between the probes and the piles was studied.A comparison among the results of piezocone penetration tests,the calculated results and the field measurements of pore water pressure around the piles indicates that the piezocone penetration tests are theoretically and practically feasible to predict the magnitude of the pore water pressure due to installing piles in soft clay.