Event Effect Determination via Pre-Post Displacement Comparison
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Solution Overview
Problem
Existing technologies do not provide a method to determine the effect of events, such as construction, on structures like roads, which experience displacement over time.
Innovation Solution
An effect determination system that includes a predicted displacement acquisition means, a displacement acquisition means, and an effect determination means. The system acquires a predicted displacement of a structure before an event, acquires a post-event displacement based on observations, and determines the effect of the event on the structure by comparing the predicted and post-event displacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ground surface displacement is monitored using existing technologies (PTL 1, PTL 2), then displacement data can be obtained, but the effect of events on structures cannot be determined
Solution Approach 1:
The system performs preliminary action by acquiring pre-event displacement data before construction events occur. This baseline data is stored and later used for comparison with post-event displacement measurements, enabling the determination of event effects on structures.
Solution Approach 2:
The system implements feedback by comparing post-event displacement measurements with pre-event baseline data to determine the effect of construction events. This feedback mechanism provides information about whether observed displacements are due to event activities or other factors.
2Measurement precision
If only post-event displacement observation is performed, then current ground state can be measured, but the cause of displacement (event effect vs. natural deterioration) cannot be distinguished
Solution Approach 1:
The system captures pre-event displacement data before construction activities begin, creating a baseline that represents the ground state without event influence. This preliminary measurement enables later differentiation between event-induced displacements and natural ground behavior.
Solution Approach 2:
The system segments the displacement analysis into distinct phases: pre-event baseline measurement, event monitoring during construction, and post-event comparison. This segmentation allows independent evaluation of each phase's contribution to overall displacement patterns.
Data Source
AI summary
An effect determination system according to the present invention includes: a memory configured to store instructions; and one or more processors configured to execute the instructions to: acquire a predicted displacement of a structure after an event, the predicted displacement being a displacement of the structure on a ground surface and having been predicted based on a pre-event displacement acquired before the event related to a ground of the structure; acquire a post-event displacement of the structure based on an observation result of the ground surface observed after the event; and determine an effect of the event on the structure based on the predicted displacement and the post-event displacement.