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Baca Juga : IDENTIFIKASI LAPISAN TANAH LUNAK MENGGUNAKAN METODE MASW (MULTICHANNEL ANALYSIS OF SURFACE WAVE) DI KECAMATAN BAITURRAHMAN KOTA BANDA ACEH (RADIFAN RAMADHAN AK, 2019) ,

Baca Juga : INVESTIGASI LAPISAN BAWAH PERMUKAAN DI KECAMATAN MEURAXA, BANDA ACEH MENGGUNAKAN METODE MASW (MULTICHANNEL ANALYSIS OF SURFACE WAVE) (Reni Sri Wahyuni, 2018) ,

t berkisar dari 110-400 m/s. dengan nilai kecepatan gelombang geser (vs) minimum 110 m/s dan nilai kecepatan gelombang geser (vs) maksimum 400 m/s. untuk lintasan 1 diperoleh dua lapisan yaitu lapisan tanah lunak (se) dengan nilai kecepatan gelombang geser 110-160 m/s dan lapisan tanah sedang (sd) dengan nilai kecepatan gelombang geser (vs) 180-260 m/s. pada lintasan 2 juga terdapat 2 lapisan yaitu tanah lunak (se) dengan nilai kecepatan gelombang geser (vs) 160 m/s dan lapisan tanah sedang (sd) dengan nilai kecepatan gelombang geser (vs) 180 m/s. untuk lintasan 3 didapatkan tiga lapisan yaitu tanah lunak (se), lapisan tanah sedang (sd) dan lapisan tanah kuat (sc) dengan nilai kecepatan gelombang geser (vs) 140-160 m/s, 200-330 m/s, dan 360-400 m/s. sedangkan pada lintasan 4 diperoleh dua lapisan yaitu lapisan tanah lunak (se) dan lapisan tanah sedang (sd) dengan nilai kecepatan gelombang geser (vs) 110-160 m/s dan 180-200 m/s. dapat disimpulkan, tipe kalsifikasi tanah yang diprediksi dari hasil penelitian ini secara dominan adalah tanah kuat (sc) dan tanah sedang (sd), dimana ditemukan sebahagian kecil tanah lunak (se). kata kunci: gelombang rayleigh, kecepatan gelombang geser (vs), seismik masw, seisimager, klasifikasi tanah. abstract the research about the investigation of subsurface soil strenght using rayleigh wave has been conducted in banda aceh by using multichannel analysis of surface wave (masw) method. this research aims to find out information of subsurface soil stiffness based on shear wave velocity value (vs). the seismograph pasi 16s-24p was used to acquaire data where four seismic lines whose same layout were designed, such as space between geophones is 2 meter long and total lenght is 56 meter. the data obtained from acquisition seismic masw method were processed by utilizing seisimager software. based on the data analysis, the maximum depth was found up to 27 meters. refering to soil classification types from sni 1726-2012, the soil stiffness in this research is classified into medium soil (sd) and stiff soil (sc). of the four (4) lines of measurements have been performed, the shear wave velocity values range from 110-400 m/s. the minimum shear wave velocity (vs) value is 110 m/s, where its maximum value is 400 m/s. for line 1, two soil layers are identified, namely soft soil layer (se) with shear wave velocity 110-160 m/s and medium soil layer (sd) with shear wave velocity (vs) 180-260 m/s. then line 2, there are also found 2 layers which are soft soil (se) with shear wave velocity (vs) 160 m/s and medium soil layer (sd) with its shear wave velocity (vs) 180 m/s. for line 3, there are three layers identification which are soft soil (se), medium soil (sd) and stiff soil (sc) where their shear wave velocity (vs) are 140-160 m/s, 200-330 m/s, and 360-400 m/s successively. while for line 4, the soft soil (se) and medium soil layer (sd) were expected by having each shear wave velocity (vs) 110-160 m/s and 180-200 m/s. in summary, the identified soil types in this research are mainly stiff soil (sc) and medium soil (sd), where the marginal type of soil is the soft soil (se). keyword: rayleigh wave, shear wave velocity (vs), masw, seisimager, soil classification.

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