Building foundation detection method and system based on settlement data

By analyzing the settlement amount and spatial response relationship of the trough point of building foundation settlement data, the problem of the inability to identify defective piles in pile raft foundations in a timely manner in the existing technology has been solved. This enables early location and damage assessment of defective piles, reduces the risk of misjudgment, and provides effective maintenance measures.

CN122190315APending Publication Date: 2026-06-12HENAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN UNIV OF SCI & TECH
Filing Date
2026-05-14
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing building foundation testing methods cannot promptly identify progressive damage to defective piles in pile-raft foundations, leading to potential hidden risks. Existing testing methods cannot detect progressive damage inside the pile foundation when macroscopic indicators are still within the allowable range, and it is not discovered until the load transfer exceeds the bearing limit of adjacent piles.

Method used

By using a settlement data-based detection method, the settlement amount at the trough of the settlement time series is extracted, the non-monotonic fluctuation characteristics are determined, the spatial response relationship caused by load transfer is established, the location of defective piles is determined by combining geometric matching conditions, and the degree of progressive penetration damage is assessed.

Benefits of technology

It enables early identification and location of the integrity status of pile foundations inside the ground, reduces the possibility of misjudgment, provides a basis for targeted maintenance decisions, is suitable for long-term monitoring during operation, and has minimal construction impact and low cost.

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Abstract

The application discloses a building foundation detection method and system based on settlement data, and particularly relates to the field of building foundation testing technology, which is used to solve the problem that individual foundation piles in a group of piles cannot be detected to gradually penetrate and damage when macroscopic settlement indexes of a pile raft foundation are within the range allowed by the specification; by arranging observation points on the pile raft foundation and collecting settlement time series, non-monotonic fluctuation characteristics are determined according to the increasing settlement of continuous wave trough points in sequence to mark suspected defect points, the fluctuation amplitude of the suspected defect points is extracted and compared with the settlement change direction of adjacent observation points to establish a spatial response relationship caused by load transfer, the starting time of reverse settlement is sorted to obtain a propagation time sequence path and geometric matching verification is performed on the main force transmission path direction of the raft slab strip, and finally, the degree of gradual penetration and damage is evaluated based on the total duration of non-monotonic fluctuation and the increase amount of fluctuation amplitude before and after to realize the gradual penetration and damage.
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