表面波譜法（SASW）之實務與應用

The Application of Surface Wave Prospecting Method (SASW Method)

林進興(Chin-Hsin Lin) ； 蘇百加(Pai-Chia Su)

《地工技術》 86期 (2001/08) Pp. 19-28

https://doi.org/10.30140/SG.200108.0001

摘要

表面波探測法係於地表施測之非破壞性檢測法，其主要利用不同頻率之表面波有不同之影響深度之特性，以探測不同深度之S波速度層構造，其探測深度大致在50公尺以內，主要分為SASW法及MASW法，其標準之作業程序包括：（1）於測處佈設2個或多個受波器，進行雷利波量測（2）量測分析表面波之頻散曲線圖，（3）逆推出S波速度層構造，此方法淺者可檢測混凝土結構體，深者可探測出50公尺深之S波速度層構造。

關鍵字

表面波 ； 雷利波 ； 頻散曲線

並列摘要

The surface wave prospecting method that conducted on the ground surface is one of the non-destructive testing methods. The penetrating depth of the surface wave depends on the frequency of the surface wave. By the phase velocity of the difference frequency of the surface wave, the S wave velocity structure of the sublayers could be developed. The SASW and the MASW method coud be attributed to the depth of less than several tens meters. The procedure of the surfave wave prospecting is as follows: 1. To layout two or many receivers on the site and conduct the Rayleigh wave measurement, 2.Dispersion curve analysis, 3. Inversion analysis of the S wave velocity structure. The surface wave prospecting method could be applied to the nondestructive testing of the RC structure in smaller scale, and S wave velocity structure down to 50m in larger scale.

並列關鍵字

surface wave ； Rayleigh wave ； SASW method ； MASW method ； dispersion curve