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All Journal JURNAL TEKNIK SIPIL ITP ISSN 2354-8452 Ensiklopedia of Journal

Nofrizal Nofrizal

Institut Teknologi Padang

Author-ID : 2985037

Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Law, Crime, Criminology & Criminal Justice Social Sciences

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ANALISIS KAPASITAS DRAINASE KAWASAN PERUMAHAN NEVERITY SIMPANG KALUMPANG KECAMATAN KOTO TANGAH KOTA PADANG Nofrizal Nofrizal
JURNAL TEKNIK SIPIL ITP Vol 4, No 1 (2017): JURNAL TEKNIK SIPIL (JTS) ITP
Publisher : LP2M ITP

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Sistem saluran drainase merupakan bagian terpenting dalam perencanaan pembangunan suatu kawasan perumahan. Sistem drainase yang baik harus dapat menampung dan mengalirkannya debit aliran dengan kecepatan ideal sehingga tidak terjadi genangan air pada saat hujan turun pada lokasi perumahan. Untuk mengatasi masalah genangan di atas, maka diperlukan analisa curah hujan yang cukup dalam mewujudkan sistem dan kapasitas penampang dari sebuah drainase sebagai solusi terbaik mengurai genangan banjir pada kawasan sebuah perumahan. Metoda yang dipakai dalam pemecahan masalah dengan melakukan survey lokasi dan pengumpulan data pendukung. Dalam analisa diperlukan data pendukung dalam memecahkan masalah diantaranya berupa data curah hujan maksimum, data penduduk, dan hidrolika aliran. Dari hasil analisis terhadap frekuensi curah hujan,dan bentuk topografi lokasi yang telah dilakukan, maka diperoleh debit rencana yang terbesar sebesar Q = 11,236218 m3/dtk dengan bentuk dimensi saluran berupa trapesium, lebar b = 2,46 m, dan tinggi saluran h = 1,55 m, dengan sistem aliran menerus yang bermuara ke sungai sebagai penelusuran peluapan genangan banjir pada lokasi perumahan.KATA KUNCI: Drainase, analisis penampang, debit rencana

STUDI EKPERIMENTAL RESPON INTENSITAS HUJAN DAN TEKANAN AIR PORI TANAH PENGARUHNYA TERHADAP KERUNTUHAN LERENG Nofrizal Nofrizal; Septiwila Zarinda
Ensiklopedia of Journal Vol 4, No 2 (2022): Vol 4 No. 2 Edisi 2 Januari 2022
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Malalak is one of the youngest sub-districts in Agam Regency, the district was previously included in the administration of the district IV koto. Malalak sub-district officially separated its elf into its own sub-district on May 24, 2007. Simalaka Road (Sicincin-Malalak-Balingka) connects between Balingka nagari in district IV Koto, Malalak nagari in Malalak sub-district, and Tandikek nagari, Patamuan, Sicincin in Padang Pariaman district.This study is classified into applied research. will use soil parameter and rainfal to find out, and analyze the extent of rain characteristics on slope collapse, as well as compare the safe factors obtained using fellenius medote and Geo-studio V Software, due to disturbed soil stability or slope building rocks.In determining the value dari the safety factor of the slope by using software Geo-Slope /W obtained the value of safety factor is 0.70. The result of vibrational influence as well as the frequent rain stability of the slopes experienced a considerable decrease in the safety value of the slopes and showed that the slope conditions unstable. Analisis safety factor from research conducted on malalak road section KM 31 can be summed up a few things as follows. From the analysis obtained a definition of the factors that cause slope unstableness. From the calculation results can be that rainwater infiltration is very influential to the stability of the slope, where safety factors or FK (Safety Factor) slopes decrease along with the length of rainwater infiltration that occurs in the area especially during the soil hoarding process occurs, this can be seen from the results of geostudio analysis and fellenius method that shows reduced slope safety factors.

PENGARUH ALIRAN REMBESAN DAN KEMIRINGAN LERENG TERHADAP PRILAKU KEGAGALAN LERENG Nofrizal Nofrizal; Amelia Sulastri; Febi Silvia Deni
Ensiklopedia of Journal Vol 3, No 1 (2020): Vol 3 No 1 Edisi 1 Oktober 2020
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

The effect of water flow or seepage into the soil will affect the stability of the slope. For this reason, it is necessary to study the slope collapse with variations in the slope. The 3-dimensional spring model is made in the form of a frame with a size of 100 cm long x 70 cm high x 7 cm wide. The slope model is made from sand with a slope of 30o, 40o and 60o. The soil shear strength test is also carried out on samples of soil that has collapsed with different water content. In general, the shear strength of the soil has decreased due to water seepage. Slope failure with a slope of less than 40o only occurs at the foot of the slope, while slopes with a slope greater than or equal to 40o experience collapse along the slope height to the top of the slope.

ANALISIS PENGARUH KARAKTERISTIK CURAH HUJAN TERHADAP KERUNTUHAN LERENG DENGAN MENGGUNAKAN APLIKASI GEO SLOPE (Studi Kasus : Jalan Simalaka (Sicincin-Malalak-Balingka) Nofrizal Nofrizal; Amelia Yulastri; Febi Silvia Deni
Ensiklopedia of Journal Vol 3, No 2 (2021): Vol 3 No 2 Edisi 1 Januari 2021
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Avalanches are a frequent event on a slope. One of the important factors that causes landslides in addition to the load that is on the slopes is the infiltration of rainwater. In the rainfall data in malalak road area also has the intensity of rain with heavy rainfall conditions. Not closing is likely to be a avalanche. This research was conducted to analyze the amount of safety figures on Malalak Road. This study is classified into applied research. Kajian will use soil parameter data and rainfall data,, as compare the safe factors obtained using fellenius medote and Geo-studio V Software, due to disturbed soil stability or slope building rocks. Analysis of the use of the Geo-Studio program and using the Fellenius method showed the safety factor value of the slopes in the Malalak area was0.80. Therefore the result itu means the slopesin kalert are inunstable condition because it has a safety factoran < 1,5 . The analysis of calculations from research conducted on malalak road section KM 28 shows that the value of safety factors obtained is still said to be labil, where the value of FK is less than 1.5 can be concluded that the infiltration of rain and slope slope is very influential to the stability of the slope. Dimana safety factor or FK (Safety Factor) slope decreases along with the length of rainwater infiltration that occurs in malalak area.

SIMULASI GENANGAN AIR DENGAN MENGGUNAKAN SOFTWARE HEC-RAS (Studi Ruas Jalan Ampang Pulai, Kecamatan Koto XI Tarusan, Pesisir Selatan) Nofrizal Nofrizal; Syofyan Z Syofyan Z; Jeki Tri Agusman
Ensiklopedia of Journal Vol 5, No 1 (2022): Vol. 5 No. 1 Edisi 2 Oktober 2022
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

The case in the District of Koto XI Tarusan, especially in the area of the Ampang Pulai route, is a flood event that occurs almost every year during the rainy season. The flood has caused hundreds of houses, schools and office buildings to stop by up to 50 centimeters. Puddles occur when rainfall exceeds 100 millimeters or a day with 6 hours of rain.Based on the problems that have been stated, this type of research includes applied research. From the results of running the flow profile analysis using the HEC-RAS software, it is found that the drainage slope is different and at some points the drainage flow is not smooth and there is blockage in the area. Results of data analysis carried out 1. HEC-RAS is able to perform permanent and non-permanent flow simulations from water level profiles in artificial and natural channels/rivers, sediment transport analysis on a moving basis, water quality analysis and several hydraulic designs. 2. From the analysis of running flow profile analysis using the HEC-RAS software, several drainage points are found whose elevation is too low and water puddles are easy to occur at that point.

ANALISIS KEBUTUHAN AIR BERSIH PDAM KOTA PAYAKUMBUH TAHUN 2021-2040 KECAMATAN PAYAKUMBUH TIMUR (STUDI KASUS PDAM KOTA PAYAKUMBUH) Nofrizal Nofrizal; Randi Triadhi
Ensiklopedia of Journal Vol 5, No 3 (2023): Volume 5 No. 3 Edisi 1 April 2023
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Rapid population growth makes all needs increase, one of which is the need for clean water. Clean water is the main source for human life, because all activities require clean water, such as bathing, drinking, washing and others. Seeing that every year the population of Payakumbuh City continues to increase so that this affects the amount of clean water to meet the needs of the population every year. This final project discusses analyzing PDAM clean water needs in Payakumbuh City, subdistrict East Payakumbuh in 2021 to 2040. The purpose of this final project is to determine the need for clean water in Payakumbuh City based on an increase in population in the next 20 years. The research methods used to carry out this research include field observations, literate studies, interviews and data collection to relevant agencies and analysis of data processing. Based on the analysis, the average water demand in 2025 is 65.507 liters/second, in 2030 it is 74.126 liters/second, in 2035 it is 80.704 liters/second and in 2040 it is 87.854 liters/second. Thus, by knowing the increase in population in the next 20 years, it can be seen how much the average water demand for PDAM Kota Payakumbuh Kec. East Payakumbuh is needed in the next 20 years to meet the needs of the population, so it can be concluded that Payakumbuh City PDAM must increase the clean water discharge every year.Keywords: Raw water discharge, and usage discharge

Co-Authors Amelia Sulastri Amelia Yulastri Febi Silvia Deni Indra Warman Jeki Tri Agusman Randi Triadhi Septiwila Zarinda Syofyan Z Syofyan Z

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