An Integration Of The Seismic Methods In Characterization Of An UnsaturatedGranitic Residual Soil Site

Semesta Teknika

Sri Atmaja P Rosyidi¹  Khairul Anuar Mohd Nayan² 

[1] Universitas Muhammadiyah Yogyakarta;Universiti Kebangsaan Malaysia;

关键词: seismic refraction, downhole method, s wave velocity, p wave velocity, dynamic shear modulus, spt-n;   

DOI  :  

来源: DOAJ

【 摘 要 】

A comprehensive seismic survey encompassing the seismic refraction and the downhole method have been carried out in order to characterize a site of granitic residual soil.  The seismic refraction was found to be useful in the initial modeling of the subsurface and has managed to identify the water table, a bolder and the bedrock level satisfactorily.  From the downhole seismic, P-wave velocity was found to be responsived to lithology and the water table, while the S-wave velocity was found to be able to characterise the residual soil in terms of their weathering grades.  Correlations between the S-wave velocity (Vs) and dynamic shear modulus (Gseis)  were established with the SPT (N) and the static unload reload shear modulus (Gur)of the pressuremeter tests. The relationship of Vs = 2.89N + 167.84 and Gseis (MPa) = 2.39Gur + 36.03 were obtained in this study.  

【 授权许可】

Unknown