Landslide Potential Identification Using Geoelectrical, Ground Penetrating Radar (GPR), and Microtremor at Claket Adventure Park

Agastia, Nautfal Giggas (2026) Landslide Potential Identification Using Geoelectrical, Ground Penetrating Radar (GPR), and Microtremor at Claket Adventure Park. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Claket Adventure Park area is a slope area that has the potential to experience landslides due to lithological conditions, weathering levels, and subsurface water content. This study aims to identify subsurface characteristics and zones that have the potential to experience landslides using Geoelectric Resistivity, Ground Penetrating Radar (GPR), and Microtremor methods. The geoelectric method is used to obtain the distribution of subsurface resistivity, GPR to identify reflectors and discontinuity zones, while microtremor with the Horizontal to Vertical Spectral Ratio (HVSR) method is used to determine the dominant frequency (F0), amplification factor (A0), and seismic vulnerability index (Kg). The results of the study indicate the presence of a low resistivity layer interpreted as clay or water-saturated material that has the potential to become a slip plane, as well as a high resistivity layer interpreted as compact material or bedrock. GPR data shows the presence of reflectors, fractures, and subsurface discontinuity zones. Microtremor analysis shows several areas have low F0 values and high A0 and Kg values, which indicate soil conditions that are more susceptible to landslides. The integration of the three methods demonstrated consistent interpretations in several zones indicated as having landslide potential. Thus, the geoelectric, GPR, and microtremor methods are effective in identifying subsurface conditions and landslide potential in the Claket Adventure Park area.
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Kawasan Claket Adventure Park merupakan daerah lereng yang berpotensi mengalami longsor akibat kondisi litologi, tingkat pelapukan, dan kandungan air bawah permukaan. Penelitian ini bertujuan untuk mengidentifikasi karakteristik bawah permukaan serta zona yang berpotensi longsor menggunakan metode Geolistrik Resistivitas, Ground Penetrating Radar (GPR), dan Mikrotremor. Metode geolistrik digunakan untuk memperoleh distribusi resistivitas bawah permukaan, GPR untuk mengidentifikasi reflektor dan zona diskontinuitas, sedangkan mikrotremor dengan metode Horizontal to Vertical Spectral Ratio (HVSR) digunakan untuk menentukan nilai frekuensi dominan (F0), faktor amplifikasi (A0), dan indeks kerentanan seismik (Kg). Hasil penelitian menunjukkan adanya lapisan resistivitas rendah yang diinterpretasikan sebagai tanah lempung atau material jenuh air yang berpotensi menjadi bidang gelincir, serta lapisan resistivitas tinggi yang diinterpretasikan sebagai material kompak atau bedrock. Data GPR menunjukkan keberadaan reflektor, rekahan, dan zona diskontinuitas bawah permukaan. Analisis mikrotremor menunjukkan beberapa area memiliki nilai F0 rendah serta nilai A0 dan Kg yang tinggi, yang mengindikasikan kondisi tanah yang lebih rentan terhadap longsor. Integrasi ketiga metode menunjukkan kesesuaian interpretasi pada beberapa zona yang terindikasi memiliki potensi longsor. Dengan demikian, metode geolistrik, GPR, dan mikrotremor efektif digunakan untuk mengidentifikasi kondisi bawah permukaan dan potensi longsor di kawasan Claket Adventure Park.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	longsor, Geolistrik resistivitas, GPR, Mikrotremor, HVSR, landslides, Geoelectric resistivity, Microtremor
Subjects:	Q Science > QE Geology > QE599 Landslides. Rockslides
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User:	Nautfal Giggas Agastia
Date Deposited:	28 Jul 2026 01:05
Last Modified:	28 Jul 2026 01:05
URI:	http://repository.its.ac.id/id/eprint/138247

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