Film-like sensors were used to measure pore water pressure in clay during consolidation. The sensors were coated and calibrated before use. Two types of needle probes were used to measure the pressure. Results showed that the pressure increased, peaked at around 4 minutes, and then decreased. The decreasing trend became milder after about 480 minutes, indicating the end of primary consolidation. During secondary compression, the pressure continued to decrease as settlement occurred. The K0 value remained constant during loading and increased during secondary compression.