DEVICE AND METHOD FOR VERIFYING SOUNDNESS OF IN BEDROCK HIGH-PRESSURE GAS STORAGE FACILITY

摘要

PROBLEM TO BE SOLVED: To provide a soundness verifying device for high-pressure gas storage facility in bedrock that is long in life cycle and can monitor the soundness of a storage tank of a lining-type high-pressure gas storage facility in bedrock and the whole bedrock with high accuracy, and to provide a method for verifying the soundness of the storage facility.

SOLUTION: An optical fiber 8 constituting the soundness verifying device is laid on both vertical and horizontal reinforcing bars 5a so as to surround the whole outer periphery of the storage tank 4 in back-filling concrete 5. The verifying device always monitors the displacement of the whole outer periphery of the lining type high-pressure gas storage facility in bedrock 1 by measuring a longitudinal strain change or temperature change occurring in the optical fiber 8 continuously or at multiple points as a line or plane. Since one end section of the fiber 8 is connected to a measuring instrument, the instrument can simultaneously measure the strain and temperature of the fiber 8 by switching an optical switch.

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