为了扩大双桥探头的应用范围,我们研制了带有孔压传感器的探头,腔内装有端阻传感器、侧阻传感器和孔隙水压力传感器。这样在贯入时,可同时测出探头的端部阻力q_c、侧壁摩阻力f_s和动孔隙水压力U等三个土的特性指标。其功能除具有双桥探头的全部优点外,还可将记录的圆锥阻力P_c中包含U值部分区分 In order to expand the application scope of the double bridge probe, we have developed a probe with a pore pressure sensor equipped with an end resistance sensor, a side resistance sensor and a pore water pressure sensor. In this way, the probe tip resistance q_c, sidewall frictional resistance f_s and dynamic pore water pressure U can be measured at the same time. In addition to its features double bridge probe all the advantages, but also record the cone resistance P_c contains U value part of the distinction