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SUPRIYADI, ANID
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Journal : GANEC SWARA

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KOEFISIEN LIMPASAN PERMUKAAN PADA PERKERASAN PAVING BLOCK BERPORI YASA, I WAYAN; SUPRIYADI, ANID; PRAJNA D, KADEK AGUS
GANEC SWARA Vol 14, No 2 (2020): September 2020
Publisher : Universitas Mahasaraswati Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v14i2.158

Abstract

The use of pavement is increasing, especially in urban areas. Various types of pavement are used including asphalt, concrete and paving blocks. The use of pavements tightens the filtration and increases the volume of surface runoff. One of the pavements used to reduce runoff is paving blocks. The open area between paving blocks is the most influential factor in increasing water infiltration in paving blocks. The larger the opening area in the paving, the more water absorption capacity will be.This research uses infall simulator to model rain. The pavement used is a square porous paving block with a size of 20 x 10 x 8 cm. Variations in the number of pores are 3 holes, 5 holes and 9 holes. The area comparisons between paving blocks and pore holes were 99.4% and 0.6%, 99% and 1%, 98.2% and 1.8%, respectively. Measurements taken are the measurement of rain intensity, runoff volume, infiltration volume and surface break-even coefficient (C).The results showed that the addition of pore holes had an effect on the surface runoff coefficient. In square paving blocks without pores, the coefficient value is greater. Poreless square paving blocks have the highest runoff coefficient with values ranging from 0.41 to 0.45, square paving blocks with 3 porico holes, runoff efficiency ranges from 0.39 to 0.43, paving blocks with 5 pore runoff coefficients range from 0.38 - 0.42, and a square paving block with 9 pore holes, the smallest runoff coefficient ranges from 0.37 to 0.41.
PEMANFAATAN DATA HUJAN BERBASIS SATELIT CHIRPS UNTUK PEMETAAN HUJAN RANCANGAN DI KABUPATEN LOMBOK UTARA SAIDAH, HUMAIRO; WIRADHARMA, LALU WIRAHMAN; SUPRIYADI, ANID; KAMTIKA, MIA JULIA
GANEC SWARA Vol 18, No 3 (2024): September 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i3.1032

Abstract

The design rainfall value is a critical parameter in flood analysis and water structure design. In general, the design rainfall calculation uses measured rainfall data. However, sometimes it is difficult to find complete rainfall data from evenly distributed rainfall stations and in an extended measurement range. This study aims to test the use of CHIRPS satellite-based rainfall data as an alternative solution for providing data in areas with difficulty with rainfall data. The analysis includes data accuracy and calibration evaluation, followed by design rainfall analysis with frequency analysis and mapping using spatial data processing software. The accuracy test results obtained an average deviation value of the original CHIRPS that did not meet the average NSE value of 0.346. Furthermore, the data was calibrated using the regression method, and corrected data was obtained with an NSE of 0.446 with an interpretation of the meeting. A rainfall analysis was conducted for corrected CHIRPS with ARR (Automatic Rainfall Recorder) measurement as a control. The results obtained the average percentage deviation for design rainfall with a return period of 2, 5, 10, 25, 50, and 100 years using corrected CHIRPS ranging from 18 - 28% lower than design rainfall using ARR. The design rainfall isohyet map using spatial data processing software for the North Lombok Region shows that high design rainfall occurs in the eastern part of North Lombok, namely around the Santong and Sambik Bangkol stations, while design rainfall with low values is in the western part of North Lombok, namely around the Tanjung and Gunungsari stations.
APLIKASI IRIGASI TETES BERTINGKAT PADA TANAMAN SEMUSIM MENDUKUNG KETAHANAN PANGAN KELUARGA DI LINGKUNGAN PERMUKIMAN KOTA MATARAM NEGARA, I DEWA GEDE JAYA; SUPRIYADI, ANID; PRACOYO, ATAS; YASA, I WAYAN
GANEC SWARA Vol 18, No 3 (2024): September 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i3.1050

Abstract

The use of multistage drip irrigation needs to be supported by adequate planting media so that irrigation water can be provided optimally. The planting medium used is practically soil mixed with compost and put in a polybag. Therefore, by adding compost with a certain composition to the soil, it is hoped that a good planting medium will be obtained. This test aims to determine the effect of using cocopeat compost and cow compost as well as soil as a planting medium in polybags on providing multistage drip irrigation. Flow characteristics on the distribution of irrigation water, its absorption capacity, absorption rate and irrigation uniformity achieved. The test was carried out on a ½” PVC drip irrigation network with a 2 lt/hour emitter consisting of 4 network levels on land measuring 2m x 4m, water source from a tower with a height of around 2.5m and a tank capacity of 150 liters. Test data for analysis consists of irrigation volume and distribution, drip system flow rate, irrigation uniformity (Cu), infiltration rate and irrigation depth. The analysis results show that the average irrigation distribution on floors 1 to 4 is 3028ml, 2937ml, 2848.25ml and 2793 ml, with flow rates on floors 1 to 4 of 40ml/s, 39 ml/s, 38 ml/s and 37 ml/sec. The amount of drip discharge (qt) on the 1st floor was 6.7ml/sec, on the 2nd floor the amount was 6.5 ml/sec, on the third floor it was 6.3 ml/sec and 6.2ml/sec on the 4th floor. Irrigation uniformity was obtained by 96% is considered very good, with an average infiltration rate hc in V2 of 0.04 cm/s, in V3 the hc was 0.03cm/s and in V4 the hc was 0.027cm/s. So the irrigation infiltration rate when using cocopeat tends to decrease if the portion of the planting medium increases, so its use needs to be limited.
Co-Authors Adetya, Kukuh Agastya, Dewandha Mas Agus Suroso Agustono Setiawan Ainudin, Nurun Akbar, Tabrani Akmaluddin Akmaluddin Akmaludin Akmaludin, Akmaludin Anwar, Sayful Azmi, Muhammad Khoirul Budianto, M Bagus BUDIANTO, M. BAGUS Budianto, Muh Bagus Budianto, Muh. Bagus Desi Widianty Desi Widiyanti Dewi, Evrianti Syntia Eko Pradjoko Eniarti, Miko Ery setiawan Farhan, Agil Hanifah, Lilik Hardi Pratomo Hartana Hartana, Hartana Hasyim hasyim, hasyim Heri Sulistiyono, Heri Hidayati, Nufalia Humairoh Saidah I Dewa Gede Jaya Negara I Wayan Yasa, I Wayan Jaya Negara, Dewa Gede Jaya Negara, I Dewa Gede Julio, Ryan Bagus KAMTIKA, MIA JULIA Karyawan, I Dewa Made Alit Kusuma, Lalu Dea Maulana Diendy Mahendra, Made Merdana, I Nyoman Muhajirah Negara, IDG Jaya Pathurahman PRACOYO, ATAS PRAJNA D, KADEK AGUS Rohani Rohani Rohani Saleh, Ramdan Salehuddin Salehudin Salehudin, Salehudin Salsabila, Fera Fitri Sari, Nopia Puspita Suparjo Suyasa, I K Agus Wardana, I G A N K WIRADARMA, LALU WIRAHMAN WIRADHARMA, LALU WIRAHMAN Yusron Saadi