AASHTO T 252-19:公路施工中测量孔隙压力的主要原因是:监测施工期间的强度增加，估计施工后的剩余沉降，以及确定滑坡中的现有孔隙压力。在现场安装所需的土壤孔隙压力的理论知识和评估方法。孔隙压力测量可通过测定该点的总孔隙压力或测定该点相对于周围正常地下水位的孔隙压差来进行。 数据通常被缩减为“过量”孔隙压力，即读取时测得的孔隙压力与该区域总地下水位下的“正常”孔隙压力之间的差值。由于土壤的垂直和水平变异性，现场孔隙压力测量的解释变得复杂。因此，如果不充分了解完整的土壤剖面、荷载历史和详细的土壤参数，任何孔隙压力测量的解释都可能会产生误导。

AASHTO T 252-19: The principal reasons for measuring pore pressures in highway construction are:to monitor strength increases during construction,to estimate remaining settlements after construction, andto determine existing pore pressures in landslides.This method consists of installing the pore water pressure measuring device in a soil layer at a point determined by detailed knowledge of the field conditions and theoretical evaluation of the need required. Pore pressure measurement may be made by determining the total pore pressure at the point or determining the differential pore pressure at that point relative to the surrounding normal ground water table. The data is usually reduced to "excess" pore pressure, which is the difference between the measured pore pressure and the "normal" pore pressure under the general ground water table for the area at the time of reading.Interpretation of pore pressure measurements in the field are complicated by the variability both vertically and horizontally in the soils. Therefore, interpretation of any pore pressure measurement can be misleading if the complete soil profile, loading history, and detailed soil parameters are not adequately known.