MIRROR ADJUSTMENT TOOL, STRUCTURE STATE CHANGE DETECTION SYSTEM, AND STRUCTURE STATE CHANGE DETECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a structure state change detection system and a structure state change detection method that effectively monitor states of a natural structure and an artificial structure at low cost, and a mirror adjustment tool which adjusts an angle with high precision by equipping a structure with a mirror.

SOLUTION: The structure state change detection system includes a target equipped with light emission means, a mirror, and a mirror adjustment tool which supports and adjusts the mirror, and detects a state change of a structure from whether light emitted by the light emission means is reflected by the mirror and reaches an observation point. The mirror adjustment tool comprises: a column buried in or fixed to the structure; a mirror support part to which the mirror is fixed; and a leg reception part which is provided to the column, and fixes the mirror support part by inserting a leg part provided to the mirror support part and filling the inside with a solidification material; an arm part which supports the mirror support part at one end and has the other end coupled and fixed to the column or leg reception part; and an angle adjustment mechanism capable of adjusting a tilt angle of the mirror support part.

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