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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Keteknikan Pertanian Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Teknologi Pertanian Andalas Sarwahita : Jurnal Pengabdian Kepada Masyarakat Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks International Journal of Advanced Science Computing and Engineering Journal of Innovative and Creativity Jurnal Pustaka Paket
Eri Stiyanto
Program Studi Teknik Perencanaan Irigasi Dan Rawa, Jurusan Teknik Sipil, Politeknik Negeri Padang, Padang, Sumatera Barat, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Analisis debit banjir metode rasional dan metode HSS Nakayasu terhadap debit banjir terukur Sub DAS Batang Tabir Nurfaijah; Eri Stiyanto; Wiliya; Ovrianti Nurhadi
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 120-133
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.14.1.12440.120-133

Abstract

High rainfall and changes in land cover occurring in the Batang Tabir sub-watershed have an impact on surface runoff and increased river flow, triggering flooding and causing road access to be submerged and damage to infrastructure around the river. Therefore, it is necessary to review the flood flow design calculations in the Batang Tabir Sub-Watershed to assess the potential magnitude of flood flows and establish the parameters required for water infrastructure planning. The methods commonly used for flood flow calculations are the Rational Method and the Nakayasu HSS Method. These methods are preferred due to their simplicity, as they only require river data and rainfall data. The selection of an appropriate method for calculating flood discharge must be validated with measured river discharge data. This study aims to determine the design flood discharge method that can be applied to the Batang Tabir Sub-Watershed. This study was conducted by comparing the flood discharge of the Rational and HSS Nakayasu methods with measured flood discharge using frequency distribution based on relevant statistical parameters. The results of the flood discharge calculations using the Rational method for a return period of 2–100 years are closer to the measured flood discharge, with the Rational method yielding a flood discharge of 494.05–1,385. 48 m³/s, the flood discharge using the Nakayasu HSS method for a return period of 2–100 years was 769.32–2,157.41 m³/s, and the measured flood discharge for a return period of 2–100 years was 375.22–1,337.44 m³/s. The validation and evaluation results show that the smallest error value (VE) is found in the Rational method, which is 9%, with the Nash Sutcliffe Efficiency (NSE) value falling into the very good category at 94%. Meanwhile, the Nakayasu HSS method yields the largest error value (VE) at 69%, and the NSE value falls into the unsatisfactory category at 17%. Therefore, the Rational method has a better level of suitability and can be used as a reference in infrastructure planning in the Batang Tabir Sub-Watershed.
Analysis of Land Suitability for Superior Commodities in Nagari Lawang, Matur District, Agam Regency: Analisis Kesesuaian Lahan untuk Komoditas Unggulan di Nagari Lawang, Kecamatan Matur, Kabupaten Agam Nurdiyanto, Muhammad Rizki Dhani; Yanti, Delvi; Irsyad, Fadli; Stiyanto, Eri
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 13 No. 3 (2025): December 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

This research has been carried out to identify areas that were suitable for planting superior crops in Nagari Lawang, Matur District, Agam Regency. This research was conducted using the matching method and then was continued with scoring of the slope, rainfall, C-Organic, soil pH, and soil texture parameters. The obtained values ??were used to determine the classification of land suitability for sugar cane, corn, peanuts and shallots. Land with the potential for planting sugar cane, corn, peanuts, and shallots is land in the very suitable (S1) and suitable (S2) suitability classes. Several commodities can be planted on a piece of land depending on the suitability of the characteristics of the land to the conditions for growing plants. The results of the analysis show that the land in Nagari Lawang that is suitable for planting sugar cane is 380.23 ha (27.57%), corn is 380.23 ha (27.57%), peanuts is 362.57 ha (26.29%), and shallots is 380.23 ha (27.57%) of the total land area of ??Nagari Lawang. Nagari Lawang's land (2023) that has been planted (S1 and S2 classes) with sugar cane covers an area of ??184.26 ha, corn covers an area of ??2.6 ha, peanuts covers an area of ??2.09 ha, and shallots covers an area of ??0.12 ha. The potential for developing sugar cane is 195.97 ha, corn is 377.63 ha, peanuts is 360.48 ha and shallots is 380.11 ha, respectively.  
Zonation of Soil Bearing Capacity from Cone Penetration Test Data: Case Study in Padang Liliwarti; Silvianengsih; Mahardika, Tiara; Hartati; Stiyanto, Eri
International Journal of Advanced Science Computing and Engineering Vol. 7 No. 3 (2025)
Publisher : SOTVI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/ijasce.7.3.255

Abstract

This study aims to map the zonation of soil bearing capacity in Padang City, covering five districts —Koto Tangah, Padang Barat, Nanggalo, Padang Timur, and Padang Selatan —comprising a total of 12 test points. The data were obtained from Cone Penetration Test (CPT) results, which were subsequently analysed to determine the ultimate bearing capacity of the soil, the safety factor of foundations against load eccentricity, and settlement at several test points. The analytical approach focused on assessing vertical bearing capacities, comparing estimated working loads with calculated ultimate bearing capacities, and determining settlement under representative design load conditions. From 12 test points distributed across the five districts, the results indicate that all locations exhibit safety factors significantly above the minimum requirement (FS > 3), suggesting that the ground has excellent capacity to sustain structural loads. In addition, the observed settlements are small, ranging from 0.8 mm to 6.4 mm, and remain well below the commonly accepted tolerance for foundation settlement (25–50 mm). These results support the notion that the subsurface layers in these areas are stable and do not pose a significant risk of foundation settlement. Therefore, the soil conditions at all test points can be categorised as safe, stable, and suitable to support the assumed design load of 100 kN, regardless of whether pile foundations or shallow foundations are used. The resulting soil bearing capacity zonation map is expected to serve as a practical reference for foundation planning, assisting engineers and planners in selecting appropriate foundation systems, and supporting sustainable infrastructure development in Padang City in a safer, more effective, and efficient manner.
Pendampingan Penetapan dan Penegasan Batas Nagari Sikucua Barat Kecamatan V Koto Kampung Dalam Kabupaten Padang Pariaman Falah, Muhammad Fajrul; Tiara Mahardika; Eri Stiyanto; Asri Yuda Trinanda; Afrizal Putra Prices
Jurnal Pustaka Paket Vol 4 No 1 (2025): Jurnal Pustaka PAKET
Publisher : Pustaka Galeri Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55382/jurnalpustakapaket.v4i1.911

Abstract

Kejelasan batas administratif wilayah sangat penting dalam tata kelola pemerintahan daerah karena memberikan kepastian hukum terhadap yurisdiksi, mendukung pengelolaan sumber daya, serta mencegah potensi konflik antarwilayah. Di Provinsi Sumatera Barat, nagari memiliki kedudukan strategis sebagai kesatuan masyarakat hukum adat sekaligus unit pemerintahan terendah, sebagaimana diatur dalam Peraturan Daerah Nomor 7 Tahun 2018. Namun, Nagari Sikucua Barat yang terletak di Kecamatan V Koto Kampung Dalam, Kabupaten Padang Pariaman, menghadapi permasalahan ketidakjelasan batas dengan nagari-nagari di sekitarnya. Permasalahan ini dipicu oleh pemekaran wilayah administratif yang tidak diikuti dengan penetapan batas secara definitif dan teknologi pemetaan yang memadai. Program pengabdian masyarakat ini bertujuan untuk mendampingi pemerintah nagari dalam proses penegasan batas wilayah melalui pendekatan partisipatif-kolaboratif. Kegiatan mencakup: (1) pendampingan teknis dalam pengukuran batas secara kartometrik; (2) pelacakan lapangan terhadap batas yang telah disepakati; (3) fasilitasi kesepakatan batas antar nagari; dan (4) peningkatan kapasitas teknis pemerintah nagari. Metodologi yang digunakan mencakup sosialisasi, identifikasi dokumen historis dan penanda batas alami, Focus Group Discussion (FGD), penggambaran batas dalam peta kerja menggunakan citra tegak resolusi tinggi dan hasil drone, serta validasi lapangan berdasarkan peta indikatif. Hasil kegiatan menunjukkan bahwa pendekatan partisipatif yang melibatkan tokoh adat, pemerintah nagari, dan masyarakat mampu menghasilkan peta batas yang diakui bersama dan memperkuat legitimasi sosial. Kegiatan ini diharapkan menjadi model praktik baik dalam penegasan batas wilayah nagari berbasis kolaborasi, teknologi, dan nilai lokal, guna mendukung perencanaan pembangunan dan mencegah konflik di masa depan.
Co-Authors Afrizal Putra Prices Aninda T. Puari Aninda Tifani Puari Araska, Wahyu Arlis, Angga Putra Asri Yuda Trinanda Choiruddin Batubara Deni Saputra Ekaputra, Eri Gas Fadli Irsyad Falah, Muhammad Fajrul Ferdian Ariyadi Guchi, Febriani HARTATI Imelda Safitri Khoirunnisa S Liliwarti Maharani, Salma Tri Nika Rahma Yanti Nurdiyanto, Muhammad Rizki Dhani Nurfaijah Ovrianti Nurhadi Prices, Afrizal Putra Puari, Aninda Tifani Puari Rusnam Rusnam Silvianengsih Tiara Mahardika Trinanda, Yuda Wiliya Wiliya, Wiliya Yanti, Delvi Yusman, Rival Doli