结合天津某工程桩沉桩过程中的实测孔隙水压力分布资料,探讨了单桩桩周土体中产生的超孔隙水压力大小、分布规律及影响范围,得到桩周土中超孔隙水压力的分布随距离呈对数型衰减,影响范围约为13倍桩径。对实侧推导值和理论值进行了比较,分析结果表明:在靠近桩身处,理论值要大于实测推导值,但是随着深度的加大,两值逐渐接近。 Based on the measured data of pore water pressure during pile sinking in an engineering pile in Tianjin, the size, distribution and influence range of excess pore water pressure in the soil around the single pile were discussed, and the distribution of excess pore water pressure in the soil around pile Logarithmic decay with distance, the impact of about 13 times the diameter of pile. The comparison between the real value and the theoretical value shows that the theoretical value is greater than the measured value near the pile body, but the two values ​​gradually approach as the depth increases.