Pengukuran Modulus Elastisitas Dinamis Batuan dengan Metode Seismik Refraksi

Authors

  • Ashadi Salim Bina Nusantara University

DOI:

https://doi.org/10.21512/comtech.v3i2.2331

Keywords:

P and S wave, shear modulus, elastic modulus

Abstract

The seismic wave velocity in rock formation depends on the elastic modulus and mass density of rock where the wave travels. The velocity measurement of P and S waves on rock formation and the mass density in the laboratory can be used for calculating the elastic modulus of rock formation. The elastic modulus is part of rock mechanical parameter needed in geological engineering researches. The velocity measurement of P and S waves by the seismic refraction method was done on a tunnel with 11 spreads of measurement. From the results of the measurement, three groups of rock formation could be identified. The first is rock formation with Ed=8.890-12.68 MPa and G=3.306-4.830MPa; the second group is rock formation with Ed=8.890-12.68 MPa and G=3.306-4.830MPa; and the third group is with Ed=18.520-21.120MPa and G=6.724-7.744MP. The first group is clay formation while the second and third groups are andesitic stone formation. 

Dimensions

Plum Analytics

References

Cheng, C. H. and Johnston, D. H. (1981). Dynamic and static moduli. Geophysical Research Lettres, 8(1), 39-42.

Luna, R., and Jadi, H. (2000). Determination of dynamic soil properties using geophysical methods. Proceeding of the First International Conference on The Application of Geophysical and NDT Methodologies to Transportation Facilities and Infrastructure, St. Luis, Desember, 2000.

Sutopo; Ibrahim, E.; Kurniati, N. Lasmana, F. (2009) . Studi modulus elastisitas (modulus young) untuk karakterisasi berbagai jenis batubara berdasarkan analisis kecepatan gelombang. Jurnal Penelitian Sains, 12 (2B), 12203-1 -12203-5.

Tezcan, S. S., Ozdemir, Z. dan Keceli, Z. (2007). Seismic technique to determine the allowable bearing pressure for shallow fondations in soils and rock. Acta Geophysica, 57 (2).

Uyanik, O. (2000). Compressional and shear-wave velocity measurements in unconsolidated top-soil and comparison of the results. The International Journal of The Physical Sciences, 5 (7),

-139.

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Published

2012-12-01

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