Pemodelan Bawah Permukaan Situs Kumitir dengan Metode Geolistrik Wenner

Widiantoro, Satriaji Wahyu (2021) Pemodelan Bawah Permukaan Situs Kumitir dengan Metode Geolistrik Wenner. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Situs Kumitir Mojokerto merupakan salah satu lokasi dimana diduga terdapat peninggalan kerajaan Majapahit. Situs tersebut memiliki area yang luas dan kondisinya sedang tertimbun dengan tanah sehingga untuk menggali informasi mengenai situs tersebut dilakukan proses ekskavasi. Proses ekskavasi yang sudah dilakukan berupa penggalian yang dilakukan oleh tim Balai Pelestarian Cagar Budaya Jawa Timur pada beberapa lokasi situs. Penggalian tersebut berhasil mengungkap sebagian dari tumpukan bata kuno yang membentuk struktur dinding bangunan dan sebagian bangunan utama. Pengukuran metode resistivitas digunakan untuk membantu menduga bagian situs yang masih tertimbun pada daerah situs Kumitir. Metode resistivitas digunakan disini karena mampu mengukur daerah yang luas dan memiliki kelebihan dalam mencari di kedalaman sesuai dengan yang diinginkan. Metode resistivitas menggunakan perbedaan nilai potensial dari injeksi kuat arus sehingga mampu memberikan gambaran tentang kondisi bawah permukaan melalui penampang sebaran nilai resistivitas yang dihasilkan. Jumlah lintasan yang digunakan di penelitian ini adalah 8 lintasan. Adapun konfigurasi elektroda yang digunakan pada penelitian ini adalah konfigurasi Wenner karena sensitif terhadap perubahan lateral. Setelah dilakukan pengukuran, data kemudian diolah dan dibuat penampang resistivitasnya dan pemodelan untuk mempermudah pendugaan lokasi bata di daerah tersebut. Pemodelan dibuat dengan menggabungkan penampang 2D. Berdasarkan hasil peneilitian, didapatkan nilai resistivitas dari sebaran penyusun situs adalah berkisar dari 100 ohm.meter - 334 ohm.meter dan berada pada lintasan 2, 3, 4, 5, dan 6 dan terkubur sedalam 1meter-6meter di bawah permukaan tanah. ======================================================================================================== The Kumitir site in Mojokerto is one of the locations where it is suspected that there are relics of the Majapahit kingdom. The site has a large area and its condition is being buried with soil so that to get more information about the site, an excavation process is carried out. The excavation process that has been carried out is in the form of excavations carried out by the Balai Pelestarian Cagar Budaya Jawa Timur team at several site locations. The excavation succeeded in uncovering some of the piles of ancient bricks that formed the structure of the walls of the building and part of the main building. Measurement of the resistivity method is used to help estimate the part of the site that is still buried in the Kumitir site area. The resistivity method is used here because it is able to measure large areas and has the advantage of finding the desired depth. The resistivity method uses the difference of the potential value of the current strong injection so it is able to provide an overview of the subsurface conditions through the resulting resistivity value distribution cross-section. The number of lines used in this study were 8 lines. The electrode configuration used in this study is the Wenner configuration because it is sensitive to lateral changes. After the measurement is carried out, the data then processed and made a resistivity section and modeling to make it easier to estimate the location of the brick in the area. Modeling is made by combining 2D cross sections. Based on the research results, it was found that the resistivity value of the site building bricks ranged from 100 ohm.meter - 334 ohm.meter and was on lines 2, 3, 4, 5, and 6 and buried as deep as 1m-6m below the ground.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Metode Resistivitas, Pemodelan, Situs Kumitir Resistivity Method, Modeling, Kumitir Site
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User: Satriaji Wahyu Widiantoro
Date Deposited: 10 Mar 2021 01:13
Last Modified: 10 Mar 2021 01:13
URI: https://repository.its.ac.id/id/eprint/83992

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