基于沉降数据的建筑地基检测方法及系统

By analyzing the relationship between settlement at the troughs and spatial response in the settlement time series, the problem of masked damage to defective piles in existing technologies was solved, enabling early identification and location of defective piles and providing accurate maintenance recommendations.

CN122190315BActive Publication Date: 2026-07-17HENAN UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN UNIV OF SCI & TECH
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing building foundation testing methods cannot identify the progressive damage of defective piles in pile-raft foundations in a timely manner. As a result, the failure process of defective piles is masked by the stiffness redundancy of the raft slab, making it impossible to provide early warning and intervention when macroscopic indicators are still within the allowable range.

Method used

By using a settlement data-based detection method, the settlement at the trough of the settlement time series is extracted, 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, and does not require additional drilling exploration or interruption of building use, with minimal impact on construction.

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Abstract

本发明公开了基于沉降数据的建筑地基检测方法及系统,具体涉及建筑地基现场测试技术领域,用于解决桩筏基础宏观沉降指标处于规范允许范围内时无法察觉群桩中个别基桩渐进式刺入破坏的问题;通过在桩筏基础布设观测点并采集形成沉降时间序列,依据连续波谷点沉降量依次递增判定非单调波动特征以标记疑似缺陷点,提取疑似缺陷点的波动幅值并与相邻观测点的沉降变化方向对比建立荷载转移引起的空间响应关系,将反向沉降的起始时刻排序得到传播时序路径并与筏板板带传力主路径方向进行几何匹配验证,再依据反向微幅沉降观测点的围绕分布和幅值随距离衰减特性确定缺陷桩位置,基于非单调波动总持续时间及前后波动幅值增大量评定渐进刺入破坏程度实现。
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