Evaluasi Kerusakan Jalan pada Perkerasan Aspal di Jalan Trengguli-Kudus KM 39+850 Menggunakan Metode Resistivitas 2D dan Ground Penetrating Radar (GPR)

Jannah, Afni Nur (2024) Evaluasi Kerusakan Jalan pada Perkerasan Aspal di Jalan Trengguli-Kudus KM 39+850 Menggunakan Metode Resistivitas 2D dan Ground Penetrating Radar (GPR). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Jalan Raya Trengguli-Kudus yang terletak di jalur Pantura (Pantai Utara) dan termasuk jalur utama mobilisasi di Pulau Jawa telah berulang kali mengalami kerusakan bahkan setelah diperbaiki. Penelitian ini bertujuan untuk mengidentifikasi kondisi bawah permukaan dan distribusi kerusakan pada jalan tersebut, tepatnya pada KM 39+850. Metode geofisika yang digunakan adalah Resistivitas 2D dengan konfigurasi Wenner-Schlumberger dan Ground Penetrating Radar (GPR) pada perkerasan aspal (flexible pavement). Data sekunder berupa data bor (BH-02) dan hasil tes pit digunakan sebagai validasi dalam interpretasi. Jumlah lintasan metode Resistivitas 2D terdiri dari 2 lintasan berarah Barat-Timur dengan panjang 60 m dan 9 lintasan untuk GPR. Lintasan GPR terdiri dari 7 lintasan melintang berarah Utara-Selatan sepanjang 11 m dengan jarak antar lintasan 10 m dan 2 lintasan memanjang berarah Barat-Timur dengan panjang 60 m. Hasil dari penelitian ini menunjukkan lokasi penelitian berdasarkan data resistivitas yang divalidasi dengan bor terdiri dari litologi pasir dan kerikil, lanau kelempungan, lempung padat, dan lempung lunak. Dominasi lempung diprediksi zona lemah yang menjadi penyebab kerusakan jalan pada lokasi penelitian. Beberapa jenis kerusakan yang teridentifikasi berdasarkan penampang GPR divalidasi dengan hasil tes pit dan kondisi di lapangan adalah rutting (alur) pada lapisan aspal, distorsi pada lapisan agregat kelas B hingga tanah asli, retak pada lapisan aspal – agregat kelas B, dan penurunan tanah (settlement) pada lapisan agregat kelas B – tanah asli. Adanya penurunan ini juga didukung oleh posisi lempung pada sayatan 3D resistivitas yang terlihat menurun ke arah selatan yang memperkuat dugaan adanya pergerakan material ke arah sungai.
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The Trengguli-Kudus Road, which is located on the Pantura (North Coast) route and is one of the main routes for mobilization on Java Island, has repeatedly suffered damage even after being repaired. This study aims to identify the subsurface condition and distribution of damage on the road, precisely at KM 39+850. The geophysical method used is 2D Resistivity with Wenner-Schlumberger configuration and Ground Penetrating Radar (GPR) on asphalt pavement (flexible pavement). Secondary data in the form of drill data (BH-02) and pit test results were used as validation in interpretation. The number of 2D Resistivity method lines consisted of 2 West-East lines with a length of 60 m and 9 lines for GPR. The GPR line consists of 7 transverse lines in the North-South direction with a length of 11 m with a distance of 10 m between lines and 2 longitudinal lines in the West-East direction with a length of 60 m. The results of this study show that the research location based on resistivity data validated by drilling consists of sand and gravel lithology, clayey silt, dense clay, and soft clay. The dominance of clay is predicted to be the weak zone that causes road damage at the study site. Some of the damage types identified based on the GPR cross-sections validated by the pit test results and field conditions are rutting in the asphalt layer, distortion in the class B aggregate layer to the native soil, cracking in the asphalt layer - class B aggregate, and settlement in the class B aggregate layer - native soil. This settlement is also supported by the position of the clay in the 3D resistivity incision which appears to decrease towards the south, which strengthens the suspicion of material movement towards the river.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	GPR, Jalan Trengguli-Kudus, Kerusakan Jalan, Perkerasan Aspal, Resistivitas 2D GPR, Trengguli-Kudus Road, Road Damage, Asphalt Pavement, 2D Resistivity
Subjects:	T Technology > TE Highway engineering. Roads and pavements > TE175 Road and highway design T Technology > TE Highway engineering. Roads and pavements > TE278.D523 Pavements, Concrete--Testing.
Divisions:	Faculty of Civil Engineering and Planning > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User:	Afni Nur Jannah
Date Deposited:	09 Aug 2024 02:47
Last Modified:	02 Dec 2024 03:59
URI:	http://repository.its.ac.id/id/eprint/110209

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