The reliability analysis is performed in terms of the integral of the recorded excess pore pressure time histories over a significant time interval; this is made possible by the fact that all the recorded excess pore pressures are positive. The results are presented in terms of the likelihood that the mean of measurements lies within a interval of the true result - index

Remarks:

• The numbers N represent the actual number of test results used to assess the reliability at every transducer location. This number can be less than the total number of tests reported, due to missing or malfunctioning transducers.
• At locations where one of the records is clearly different from the others, the reliability can be improved by eliminating that record. Results are shown for such cases: with open dots - using all the records; and with black dots - for improved reliability.
• An acceptability limit - lower bound for the confidence lewel - is proposed; it is evaluated for experiments with N = 3 tests.