地盤의 土質定數와 彈性波 速度의 相關性에 관한 硏究 = A Study on the Correlativity between soil parameters and seismic wave velocity of soils

다국어 초록 (Multilingual Abstract)

In this paper, it was studied that the generalized reciprocal method(GRM) on seismic data analysis and the relationships between seismic velocity and soil properties. Through the state-of-the-art on seismic refraction method, it could be found that the GRM is more accurate ray path method than the others. In this paper, the GRM was used for the analysis of seismic data obtained from selected site, and could be found how much well fitted for the site. And to the results of site investigation of Chonbuk province also it was tried to find out the correlativity between seismic velocity and soil properties and tried to make the equation.
Through the whole study, it can be concluded as followings.
1. P-wave and S-wave velocity of a weathered granite eluvium estimated in this study were the range of 500m/sec∼3000m/sec, 150m/sec∼1100m/sec respectively and those of a clay layer were the range of 200m/sec∼1350m/sec, 20m/sec∼400m/sec respectively.
2. A relationship between the P-wave velocity and density could be represented as Vp = 0.0657·EXP(1.722γt), or γt = 0.581·LOG(15.22·Vp) and a correlation coefficient and a determination coefficient were 0.736 and 0.873 respectively.
3. A relationship between the S-wave velocity and penetration value(N) of Standard Penetration Test could be represented as Vs = 57.129·N^0.582, N = 9.58E-4·Vs^1.718 and a correlation coefficient and a determination coefficient were 0.746, 0.864 respectively.
4. A relationship between the S-wave velocity and the uniaxial compression strength(qu) could be represented as Vs = 142.65·qu^0.397, qu = 3.746E-6·Vs^2.519 and a correlation coefficient and determination coefficient were 0.728, 0.853 respectively.