基于冲击回波法的输电塔基础裂缝检测方法研究

摘要

为了在日常巡视中早期发现输电塔基础的开裂状况，采用冲击回波法对输电塔基础裂缝检测的相关方法进行实验研究和有限元分析。根据某220 kV输电塔基础图纸和配料，浇筑缩比模型进行相关检测实验。实验和数值模拟结果都表明，检测值与设计值结果吻合度较高，偏差在工程的容许范围内，证明该方法是有效和可行的。%To identify the cracks of transmission tower foundation at the initial stage in routine patrol impact-echo method is used to carry out experiments on and the finite elements of the method for detecting cracks of this kind.According to 220 kV transmission tower foundation drawings and proportioning scale models used for detection experiments were poured.The experimental and numerical results show that detection results fit well with the design value results and the error is acceptable.The impact-echo method is effective and feasible to detect flaws in tower foundation.