Posture measurement system and posture measurement method

The system provides real-time, accurate monitoring of caisson posture using a barrier wall with targets and laser scanners, overcoming surveying obstacles and manual limitations, ensuring construction safety and accuracy through integrated data processing.

JP7866121B1Active Publication Date: 2026-05-26DAIHO CORP TOKIO TOKYO JP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
DAIHO CORP TOKIO TOKYO JP
Filing Date
2025-07-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing posture measurement methods for caisson bodies during subsidence excavation are hindered by the need for constant manual surveying, obstacles from scaffolding and materials, and limited setup locations, leading to inadequate real-time control of caisson posture changes.

Method used

A system comprising a barrier wall with targets and laser scanners outside the caisson, measuring distance and angle to targets, and a calculation unit for real-time horizontal displacement calculation, integrated with inclinometers and settlement meters for comprehensive three-dimensional posture assessment.

Benefits of technology

Enables accurate, real-time monitoring of caisson posture without interference from scaffolding or materials, allowing immediate response to abnormalities and predicting future changes, enhancing construction safety and accuracy.

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Abstract

This system provides a posture measurement system that can accurately and accurately determine the posture of a caisson structure in real time, unaffected by obstacles such as scaffolding and materials. [Solution] The caisson attitude measurement system S of this embodiment comprises a barrier wall 90 installed outside the caisson, a plurality of targets 20 provided on the outer surface of the caisson, a plurality of laser scanners 30 installed on the barrier wall 90, which acquire the distance and angle to the corresponding target 20, and a calculation unit 40 that calculates the horizontal displacement of the caisson based on the acquired distance and angle. Of these, the laser scanners 30 are two-dimensional or three-dimensional laser scanners 30.
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