%A Miftahuljanah.S	 	Dwi 
%T ANALISIS KERENTANAN TANAH DAN KETEBALAN LAPISAN
SEDIMEN MENGGUNAKAN METODE HORIZONTAL TO VERTICAL
SPECTRAL RATIO (HVSR) DI KABUPATEN MUSI BANYUASIN,
SUMATERA SELATAN
%X Telah dilakukan penelitian tentang kerentanan tanah dan ketebalan lapisan lunak di
daerah Tungkal Jaya Kabupaten Musi Banyuasin dengan tujuan untuk menentukan
nilai frekuensi dominan (f0), amplifikasi (A0), periode dominan (T0), indeks
kerentanan tanah (Kg) dan ketebalan sedimen (H), menganalisis nilai frekuensi
dominan, nilai faktor amplifikasi, indeks kerentanan tanah dan ketebalan lapisan
sedimen pada daerah penelitian, serta menganalisis penampang lapisan lunak dan
lapisan keras pada daerah penelitian. Metode yang digunakan dalam penelitian ini
yaitu metode Horizontal To Vertical Spectral Ratio (HVSR) yang dapat
mengidentifikasikan resiko bencana gempa melalui analisis parameternya. Hasil
dari penelitian ini mendapatkan nilai frekuensi dominan berkisar 2 Hz sampai 18
Hz, amplifikasi berkisar 1.6 kali sampai 5.2 kali, periode dominan berkisar 0.04
sekon sampai 0.38 sekon, indeks kerentanan tanah berkisar 0.2 cm/s2
 sampai 3.2
cm/s2
 dan ketebalan lapisan sedimen berkisar 3 meter sampai 27 meter. Daerah
penelitian mempunyai resiko gempa bumi yang rendah. Berdasarkan korelasi
setiap parameter tersebut maka daerah penelitian memiliki nilai frekuensi dominan
yang tinggi dan nilai amplifikasi yang rendah serta nilai indeks kerentanan tanah
yang rendah. Bedasarkan komparasi nilai frekuensi dominan dan ketebalan lapisan
lunak maka penentuan zona rekomendasi lokasi pembangunan yang paling aman
dan ekonomis dilakukan dengan pertimbangan: kerentanan tanah yang rendah dan
ketebalan sedimen yang tipis. Dari analisa diperoleh daerah yang paling aman dan
ekonomis berada di barat laut, barat, tengah, selatan dan timur tenggara.
Kata kunci : HVSR, Musi Banyuasin, Kerentanan Tanah, Ketebalan Sedimen
Research has been carried out on soil vulnerability and soft layer thickness in the
Tungkal Jaya area, Musi Banyuasin Regency with the aim of determining the values
of dominant frequency (f0), amplification (A0), dominant period (T0), soil
vulnerability index (Kg) and sediment thickness (H), analyzing the dominant
frequency value, amplification factor value, soil vulnerability index and sediment
layer thickness in the research area, as well as analyzing the cross-section of the
soft layer and hard layer in the research area. The method used in this research is
the Horizontal To Vertical Spectral Ratio (HVSR) method which can identify the
risk of earthquake disasters through parameter analysis. The results of this research
obtained dominant frequency values ranging from 2 Hz to 18 Hz, amplification
ranging from 1.6 times to 5.2 times, dominant period ranging from 0.04 seconds to
0.38 seconds, soil vulnerability index ranging from 0.2 Cm/s2
 to 3.2 Cm/s2
 and
sediment layer thickness ranging from 3 meters to 27 meters. The study area has a
low risk of earthquakes. Based on the correlation of each parameter, the research
area has a high dominant frequency value and a low amplification value as well as
a low soil vulnerability index value. Based on a comparison of dominant frequency
values and soft layer thickness, the safest and most economical development
location recommendation zone is determined by considering: low soil vulnerability
and thin sediment thickness. From the analysis it was found that the safest and most
economical areas were in the northwest, west, center, south and east southeast.
Keywords: HVSR, Musi Banyuasin, Soil Vulnerability, Sediment Thickness
%C UNIVERSITAS LAMPUNG
%D 2024
%I TEKNIK
%L eprints87765