Kajian Empiris Sumur Resapan Pada Tanah Silt

Susilo, Edi; Sudarmanto, Bambang; Purnijanto, Bambang

doi:10.26623/teknika.v12i2.641

Cited by 5 publications

(8 citation statements)

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“…Usaha untuk mereduksi debit banjir dan menambah air tanah telah banyak dilakukan di antaranya dengan menggunakan sumur resapan (Elsa, Sujatmoko, & Fauzi, 2018;Patel, Desai, & Desai, 2011), (Guttman, Negev, & Rubin, 2017), kotak resapan (Adinda & Ikhsan, 2014), parit resapan (Sunjoto, 2008), sumur resapan radial (Antonio, Albaladejo-García, & Prats-Rico, 2017) maupun kolam dengan sumur resapan (Packialakshmi, Balaji, & Kumaresan, 2015). Penggunaan sumur resapan untuk mereduksi banjir tidak cukup efektif (Edy, Suripin, & Suharyanto, 2018) karena debit resapan yang relatif kecil (Susilo, Sudarmanto, & Purnijanto, 2017). Pengisian air tanah dengan sumur resapan masih efektif selama kedalaman air tanah lebih dari 2 meter (SNI 8456, 2017).…”

Section: Pendahuluanunclassified

Studi Penanganan Genangan Banjir Dan Rob Sungai Meduri-Bremi Kota Pekalongan

Susilo

Purwanti

Pinandita

2022

JLKP

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Banjir dan kekeringan menjadi masalah di sebagian besar wilayah Indonesia. Penyebabnya diduga karena perubahan penggunaan lahan dari lahan terbuka hijau menjadi lahan tertutup bangunan. Akibatnya, infiltrasi air ke dalam tanah berkurang, dan limpasan meningkat. Kondisi ini akan diatasi dengan meningkatkan infiltrasi air ke dalam tanah. Berbagai upaya telah dilakukan dengan menggunakan sumur resapan dan biopori. Namun karena kecilnya kapasitas alat resapan, belum mampu mengatasi masalah genangan dan banjir. Horizontal Recharge Pipe (PRH) dengan dinding berlubang memiliki infiltrasi yang sangat besar. DAS Sungai Meduri dan Bremi yang terletak di Pekalongan bagian barat merupakan daerah yang sering mengalami genangan dan banjir. Hasil analisis data hujan menunjukkan bahwa periode ulang rencana 2 tahun, 5 tahun, 10 tahun, 25 tahun, dan 50 tahun berturut-turut untuk DAS Meduri adalah 106,33 mm, 146,98 mm, 172,05 mm, 200,40 mm, dan 219,73 mm. Sedangkan untuk DAS Bremi adalah 104,84 mm, 147,62 mm, 173,11 mm, 200,38 mm, 217,98 mm, 233,47 mm, dan 247,93 mm. Banjir rencana dihitung dengan menggunakan metode Gama-1, ITB-1, ITB-2, dan Nakayasu. Dengan koefisien aliran 0,455 untuk DAS Meduri dan 0,439 untuk DAS Bremi, debit banjir rencana metode Gama-1 dengan periode ulang masing-masing 2 tahun, 5 tahun, 10 tahun, 25 tahun, dan 50 tahun untuk DAS Meduri Sungai sebesar 34,36 m3/detik, 47,49 m3/detik, 55,59 m3/detik, 64,75 m3/detik, dan 71,00 m3/detik. Sedangkan debit rencana metode Gama-1 untuk Sungai Bremi adalah 49,97 m3/s, 70,36 m3/s, 82,51 m3/s, 95,51 m3/s, 103,61 m3/s, 111,28 m3/s, dan 118,17 m3/s . Pada kondisi LWL tidak hujan dan daya tampung sungai cukup sedangkan pada kondisi LWL hujan sebagian ruas sungai meluap. Ada beberapa pilihan penanganan banjir ini, yaitu A. Bendung Gerak, Tambak, dan Normalisasi Parapet; B. Bendungan, kolam, normalisasi tembok pembatas, pompa, dan PRH; C. Normalisasi, tembok pembatas, dan PRH; dan D.PRH saja. Dari keempat opsi tersebut, disarankan untuk memilih opsi C atau D sesuai dengan ketersediaan anggaran dengan pertimbangan sebagai berikut: biaya rendah, ramah lingkungan, ketersediaan air tanah meningkat, pengurangan penurunan muka tanah, dan pencegahan intrusi air laut, serta biaya operasional yang lebih rendah

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Section: Pendahuluanunclassified

Studi Penanganan Genangan Banjir Dan Rob Sungai Meduri-Bremi Kota Pekalongan

Susilo

Purwanti

Pinandita

2022

JLKP

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“…The correlation coefficient of the regression equation 9is 0.7647, indicating that the correlation between the variables and the parameters is not good. Equation (9) is better than the regression equation (6) Non-linear regression models for the independent variables K, P, D, L, and H with all these parameters are shown by equation (11):…”

Section: Ivv Combined Variablesmentioning

confidence: 99%

“…The correlation coefficient of the regression equation 11is 0.8878 Equation (11) shows that the PHRP influenced by water pressure height, pipe length, diameter, and soil permeability, while the influence of the porosity of the pipe wall (P) on the recharge is small. The length parameter is 0.718, while the porosity is 0.121.…”

Section: Ivv Combined Variablesmentioning

confidence: 99%

“…Additionally, numerous studies have been carried out on the utilization of infiltration wells for flood reduction [4]- [6], infiltration boxes [7], infiltration trenches [8], radial wells [2], and ponds [9]. The use of infiltration wells to reduce flooding is ineffective [10] due to the relatively small recharge [11]. However, it can be effective for groundwater recharge with 2 m depth or more [12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Perforated Horizontal Recharge Pipe Modeling with Non-Linear Regress

Susilo¹,

Suripin²,

Suharyanto³

2020

International Journal of Engineering Research and Technology

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Population growth and urban development have led to a widespread urbanized land cover leading to a direct increase in surface runoff and a decrease in groundwater infiltration. Various efforts have been carried out in many cities and countries using recharge wells and other structures, to increase groundwater replenishment and decreased flood discharge. This effort succeeded in increasing the groundwater level but was less successful in reducing flood discharge. This study analyzed the use of perforated pipe for groundwater recharge and runoff reduction. The research aims to formulate the infiltration rate into the soil through a perforated horizontal recharge pipe from a full-scale physical model. The research was conducted using 6 pipes of 7.5 cm-30 cm in diameter, 6 types of pipe length between 200 cm-700 cm, 6 values of pipe wall porosity (0.012; 0.016; 0.020; 0.024; 0.028; and 0.032), on texture clay soils with 4 types of soil permeability (3.49x10-6 cm/sec; 7.08x10-6 cm/sec; 8.93x10-6 cm/sec; and 1.12x10-5 cm/sec). The recharge test was carried out under the pipe flow condition (water level above the groundwater level and the pipe is underneath). Observations were used to analyze the influence of 5 variables (water pressure height, pipe diameter, pipe length, wall porosity, and soil permeability) of the perforated recharge pipe by using criteria of correlation coefficient Rsquare, RMSE (Root Mean Square Error), Cp (capability) to achieve the fittest model. The result showed that all variables affect the rate of groundwater filling. Based on a comparison of prediction recharge and observation visually, statistic parameter, and difference index the best-fitted model for perforated horizontal recharge pipe is a non-linear multiple power regression with an R-square 0.8878. This formula has also been compared with the Torricelli formula (R-square 0.5034) and the Forchheimer formula (R-square 0.7647) with more suitable results. So that research on perforated horizontal recharge pipes can be used more broadly, it is necessary to research recharge pipes on other texture of soil and research recharge pipes with the position of pipes under the groundwater level.

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“…The use of Horton's empirical formulas for the recharge wells dimensions by Elizar [1] and Agus [2] is not totally justifiable despite the use of predetermined infiltration data (fc).…”

Section: Literature Reviewmentioning

confidence: 99%

Field performance of shallow recharge well

Susilo¹,

Suripin²,

Suharyanto³

2018

MATEC Web Conf.

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The technical calculation of the need for recharge wells to reduce peak floods has not been fully supported yet the need for recharge wells in big cities especially in Indonesia is very urgent. Some recharge well methods are Horton, Sunjoto, HMTL-ITB, Ministry of Public Works, Ministry of Forestry, Indonesian National Standard, Association for Rainwater Storage and Infiltration Technology, and California Storm-water Quality Association. The hypothetical test of recharge wells at the depth and texture of a particular soil is different from the observed infiltration recharge hence it needs to have a field test of recharge wells for different soil texture. With good diameter, soil permeability, and water depth variables, it is expected that the infiltration recharge equation in the well can be empirically better suited to the performance of the recharge wells.

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Kajian Empiris Sumur Resapan Pada Tanah Silt

Cited by 5 publications

References 0 publications

Studi Penanganan Genangan Banjir Dan Rob Sungai Meduri-Bremi Kota Pekalongan

Studi Penanganan Genangan Banjir Dan Rob Sungai Meduri-Bremi Kota Pekalongan

Perforated Horizontal Recharge Pipe Modeling with Non-Linear Regress

Field performance of shallow recharge well

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