Georadar method for detecting underground septic tank

Pramudhita, Benedictus Dicky Pradnya Agung; Yusroni, Syafira Alif; Wafi, Abdurrahman; Setiawan, Nugroho Syarif; Santoso, Sigit Budi; Mariyanto, Mariyanto

doi:10.1088/1742-6596/1825/1/012020

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…3. Remove DC Component, merupakan tahapan untuk menghilangkan pengaruh komponen DC yang dapat menimbulkan distorsi pada gelombang (Pramudhita et al, 2021). 4.…”

Section: Metode Gprunclassified

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Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Jannah,

Faqih,

Dita

et al. 2024

jurgeo

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Metode Ground Penetrating Radar (GPR) merupakan metode geofisika non destruktif yang menghasilkan resolusi tinggi terhadap kontras dielektrik bawah permukaan. Dengan menggunakan metode GPR, penelitian ini dilakukan untuk mengidentifikasi kemenerusan pipa air dan kepadatan lapisan pada daerah "AYE". Frekuensi alat yang digunakan dalam pengambilan data adalah 270 MHz dengan jumlah lintasan sebanyak dua lintasan dan panjang tiap lintasan 20 m. Pengolahan dilakukan dengan program MATGPR dalam software Matlab 2015a. Tahap yang dilakukan dalam pengolahan antara lain input data, adjust signal position, remove DC component, dewow filter, median filter, inverse amplitude decay, removal global background, karhunen-loeve filter, bandpass filter, resample scan axis, 1-D velocity model, phaseshifting migration, 1D time to depth conversion, dan picking anomaly. Hasil pengolahan diperoleh penampang radargram dengan kedalaman ±7 meter. Dalam penampang radargram tersebut, diketahui dua anomali hiperbola yang sama diduga sebagai kemenerusan pipa air dengan bahan PVC pada meter 11.1 dan 18.1 dengan kedalaman 0,3 meter pada lintasan 1, dan ditemukan pada meter 10.7 dan 18.3 dengan kedalaman 0.9 meter pada lintasan 2. Anomali yang diduga pipa tersebut memiliki rentang kecepatan 0.0171 m/ns hingga 0.138 m/ns. Lapisan yang padat diindikasikan berada di kedalaman >4 meter yang ditunjukkan oleh reflektor dengan horizon yang kurang tajam, sedangkan lapisan bagian atas yang kurang padat diduga sebagai lapisan timbunan.

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“…3. Remove DC Component, merupakan tahapan untuk menghilangkan pengaruh komponen DC yang dapat menimbulkan distorsi pada gelombang (Pramudhita et al, 2021). 4.…”

Section: Metode Gprunclassified

“…4. Dewow Filter, merupakan salah satu langkah processing untuk menghilangkan frekuensi rendah yang terekam oleh radargram (Pramudhita et al, 2021). 5.…”

Section: Metode Gprunclassified

Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Jannah,

Faqih,

Dita

et al. 2024

jurgeo

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“…It ranges from how the soil type difference will affect the visibility and location of the pipe depth on the radargram [3] to the use of the GPR method with LiDAR (Remote Sensing) for infrastructure mapping in the city square of Vienna, Austria by describing the visualization of objects in 3D [4]. The Georadar technique was deployed to detect septic tanks [5], to detect seepage around water catchment reservoirs in Jakarta [6], and to be used in disaster mitigation. GPR is also applied to detect buried victims [7].…”

Section: Introductionmentioning

confidence: 99%

Detection of subsurface water pipeline under SZJT Track Using Ground-Penetrating Radar Method

Mariyanto,

Parnadi,

Ramadhan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Surabaya’s public facilities and rapid infrastructure development will change the physical environment and require careful attention in all aspects of development. One aspect is the location determination of subsurface objects such as gas pipes, electrical cable lines, and water pipes. Lack of pipeline management and mapping can fail underground pipeline identification during excavation. The subsurface water pipe is one of the most important things to support people’s needs. Knowing the location of these pipes is essential for government agencies in carrying out maintenance, pipeline development, and repair activities. We identified the subsurface water pipeline using the Ground-Penetrating Radar (GPR) method. It is because of a non-destructive working type and very well applied in investigating underground infrastructure with significant electromagnetic contrast with the surrounding soil. We conducted this research around Surabaya Zoo and Joyoboyo Terminal (SZJT) track. We conducted data acquisition with the GPR GSSI SIR-3000 system with a shielded antenna frequency of 270 MHz on 21 measurement lines (JB07 to JB27). The aim is to determine the location, depth, and structure of the subsurface water pipeline at the research location. We processed the measurement data using MatGPR R-3.1 software by adjusting signal position, dc removal, dewow, median filter, inverse amplitude decay, background removal, K-L filter, bandpass filter, and time-to-depth conversion. We conducted 2-D and 2.5-D modeling to visualize the water pipeline. A hyperbolic anomaly, suspected to be a water pipe, is detected from the presence of high amplitude at a depth of 1 – 2 meters, which we saw in almost every line with velocity values from 0.0609 - 0.113 m/ns and dielectric constant value of 7.05 – 24.27. The 2.5-D modeling shows that the water pipeline continues from the research location’s south (Surabaya River) to the north.

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Georadar method for detecting underground septic tank

Cited by 2 publications

References 5 publications

Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Detection of subsurface water pipeline under SZJT Track Using Ground-Penetrating Radar Method

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