Intelligent shield segment member and shield tunnel monitoring system

Abstract

The invention provides an intelligent shield segment member and a shield tunnel monitoring system. The shield tunnel monitoring system comprises a plurality of shield segments, a pore water monitoringpart, a strain monitoring part and an information processing part. Each shield segment comprises a segment body and a skeleton; the pore water monitoring part comprises a plurality of segment temperature sensing optical cables mounted in the multiple shield segments correspondingly, and a temperature information receiving and storing unit in communication connection with the segment temperature sensing optical cables; the strain monitoring part is used for monitoring the strain situation in a shield tunnel and comprises a plurality of segment strain sensing optical cables mounted in the multiple shield segments correspondingly, and a strain information receiving and storing unit in communication connection with the segment strain sensing optical cables; and the information processing partis in communication connection with the temperature information receiving and storing unit and the strain information receiving and storing unit and processes segment temperature information and segment strain information, and thus segment temperature data reflecting the leakage situation of pore water in the shield tunnel, and segment strain data reflecting the damage situation of the shield tunnel are obtained.

Description

technical field [0001] The invention relates to the field of tunnel engineering, in particular to an intelligent shield segment component and a shield tunnel monitoring system including the segment component. Background technique [0002] With the development of optical fiber technology, the application of optical fiber sensing and monitoring is becoming more and more extensive. Its transmission uses light as the information carrier, and has no direct connection with electrical signals during its transmission. It has an ideal effect in some environments where electrical signals cannot reach, such as electromagnetic interference, strong radiation, flammable, explosive, and strong corrosive environments. It is widely used in civil engineering, aviation, ships, electric power, petroleum, and building structure health monitoring. Compared with other traditional hydraulic and electrical sensors, fiber optic sensors are safer, more stable, and have higher measurement accuracy. . ...

AI Technical Summary

Problems solved by technology

[0003] During the construction and operation of the shield tunnel, monitoring the stress and strain of the segments, the pore water in the surrounding rock of the tunnel and the pore water between the segments is a systematic project with a long cycle and complicated monitoring items.

Regardless of the traditional measurement technology or the pore pressure gauge monitoring technology, there are problems such as the sensor is easy to corrode, the monitoring range is small, and the monitoring data is not continuous and incomplete.

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