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Baca Juga : ANALISIS POISSON RATIO UNTUK MENENTUKAN LITOLOGI BAWAH PERMUKAAN DENGAN MENGGUNAKAN METODE REFRAKSI DAN MASW DI KECAMATAN ULIM, PIDIE JAYA (Alif Fachreza Deyan, 2018) ,

Baca Juga : PENENTUAN LITOLOGI BAWAH PERMUKAAN BERDASARKAN NILAI POISSON RATIO AREA GEMPA BUMI MENGGUNAKAN METODE SEISMIK REFRAKSI DAN MASW DI KECAMATAN PANTERAJA, PIDIE JAYA (Hayatul Muna, 2017) ,

san 1 dan lintasan 2 sebesar 66 m dengan spasi antar geophone2 m. hasil dari perhitungan tersebut diplot menggunakan software surfer 11 untuk mendapatan distribusipoissoin’s ratio 2d. dari distribusi nilai poisson’s ratio menunjukkan bahwa kedua lintasan diperoleh jenis lapisan lempung jenuh, pada lintasan 1 terdapat di kedalaman 0 - 23 m dengan nilai 0,474 - 0,496 dan pada lintasan 2 terdapat di kedalaman 0 – 23 m dengan nilai 0,456 - 0,494. hasil analisis poisson’s ratioyang diperoleh menunjukan lapisan daerah penelitian dikategorikan lapisan tidak padat dan akan mengalami penguatan terhadap respon gelombang gempa jika suatu waktu akan terjadinya kembali gempa bumi, sehingga akan bersifat merusak. kata kunci: pidie jaya, seismik refraksi, masw, poisson’sratio abstract research on subsurface sediment lithology prediction using seismic refraction method and seismic method of multichannel analysis of surface wave (masw) have been conducted in pangwa village, trienggadeng sub-district, pidiejaya in 2 tracks. this study aims to get the characteristics of subsurface sedimentary lithology based on the distribution of poisson ratio values.to obtain poisson’s ratio the seismic refraction method and the masw seismic method has been carried out to derive compressional (vp) and shear wave (vs) velocity. data measurements were performed using the pasi16s-24p seismograph with a fixed center in both methods with different spread length in each measurement for both seismic lines. seismic refraction and maswdata were processed by using zondst2d software and seisimager. the total distance of refraction seismic first line is 138 m long, whereas the 125 m long is the total distance for the second line by having 3 m spacing between geophones. while for masw,the total length of both seismic lines are 66 m with spacing 2 m long. furthermore, the poisson’s ratio values were calculated and then plotted by utilizing the surfer 11 software to dispaly their distribution. from the poisson’s ratio distribution shows that the type of predicted lithology is saturated clay layer whose 0.474 - 0.496 poisson’s ratio. this lithology is same for both sites of the seismic lines and existed more and less at the depth of 0-23 m.this type of lithology, can be classified as non-dense layer, will probably affect buildings when earthquake waves surge the sites. keywords: pidie jaya, refraction seismic, masw, poisson’s

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