scholarly journals PEMANFAATAN SIKLUS PEMBUANGAN AIR TERHADAP SISTEM DRAINASE PERUMAHAN KOTA

2018 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
Azwarman Azwarman
Keyword(s):  
Cross Section ◽  
Water Conservation ◽  
Flood Control ◽  
Rectangular Cross Section ◽  
Drainage System ◽  
Water Shortages ◽  
The Earth ◽  
Excess Water ◽  
Conservation Efficiency

Flooding as one of the big problems in Jambi City can be overcome by arranging drainage and drainage system for flood control. However, excess water during floods and used in anticipation of water shortages during the dry season has not been widely studied. The basic principle of water utilization is the engineering into a system of absorption wells or also known as water conservation which aims to prevent or minimize the lost water as the flow of the surface and store it as much as possible into the earth. The study was conducted in Jambi City, taking a case study of housing by conducting engineering to the housing drainage system so that new designs are emerging. The analysis is in the form of field observation and data analysis. This residential location is located in Paalmerah Village with 78/105 building type and there are 23 units of buildings with garden facilities and security. The results show that based on the intensity of rainfall, the dimensions of absorption wells and reservoirs can be determined for Jatayu housing. The dimension of absorption well is with the diameter of circle 1m and height 1.89 m while for the storage tub dimension is rectangular cross section with size 2m x 1.5 m x 1.5 m.Keywords: rainfall, water conservation, efficiency

scholarly journals Designing for People’s Safety on Flooded Streets: Uncertainties and the Influence of the Cross-Section Shape, Roughness and Slopes on Hazard Criteria

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2119
Author(s):  
Luís Mesquita David ◽  
Rita Fernandes de Carvalho
Keyword(s):  
Cross Section ◽  
Overland Flow ◽  
Rectangular Cross Section ◽  
Safety Hazard ◽  
Cross Section Shape ◽  
Section Shape ◽  
Flood Flows ◽  
The Cross ◽  
Flooding Risk

Designing for exceedance events consists in designing a continuous route for overland flow to deal with flows exceeding the sewer system’s capacity and to mitigate flooding risk. A review is carried out here on flood safety/hazard criteria, which generally establish thresholds for the water depth and flood velocity, or a relationship between them. The effects of the cross-section shape, roughness and slope of streets in meeting the criteria are evaluated based on equations, graphical results and one case study. An expedited method for the verification of safety criteria based solely on flow is presented, saving efforts in detailing models and increasing confidence in the results from simplified models. The method is valid for 0.1 m2/s 0.5 m2/s. The results showed that a street with a 1.8% slope, 75 m1/3s−1 and a rectangular cross-section complies with the threshold 0.3 m2/s for twice the flow of a street with the same width but with a conventional cross-section shape. The flow will be four times greater for a 15% street slope. The results also highlighted that the flood flows can vary significantly along the streets depending on the sewers’ roughness and the flow transfers between the major and minor systems, such that the effort detailing a street’s cross-section must be balanced with all of the other sources of uncertainty.

Seepage through Earth Dams with Chimney Drain on Pervious Foundation

2012 ◽  
Vol 452-453 ◽  
pp. 538-542 ◽  
Author(s):  
Abdelkader Djehiche ◽  
Rekia Amieur ◽  
Mustafa Gafsi
Keyword(s):  
Experimental Study ◽  
Flow Rate ◽  
Drainage System ◽  
Earth Dam ◽  
Earth Dams ◽  
Drainage Systems ◽  
The Earth ◽  
Excess Water ◽  
Effective Drainage

This paper presents an experimental study of a homogenous earth dam. The work is focused to the search of solutions of problems encountered in the earth dams after their construction. One of the major problems is the choice and design of systems of drainage. The effective drainage system to prevent harmful accumulations of excess water is one of the most important roles of dams. Efficient drainage systems can improve the safety of earth dams. The paper presented herein reports the results obtained from the experimental study. Empiric relations have been obtained which can be help in the control of the flow rate in the chimney drain of the earth dams on pervious foundation, which can increase safety earth dams

scholarly journals Gutter Design and Business Development for Domestic Rainwater Harvesting Systems: A Case Study

2014 ◽  
Vol 9 (1) ◽  
pp. 64-78
Author(s):  
Jillian Zankowski ◽  
Yixin Sun ◽  
Abdalla Nassar ◽  
Khanjan Mehta
Keyword(s):  
Service Learning ◽  
Cross Section ◽  
Undergraduate Students ◽  
Rainwater Harvesting ◽  
Rectangular Cross Section ◽  
Learning Experience ◽  
Skill Sets ◽  
Harvesting Systems ◽  
And Performance

Rainwater harvesting is a simple and effective tool to collect and store water for domestic and institutional use. In developing countries, captured rainwater can be used to replace or supplement government-supplied or manually-transported water. A rainwater harvesting system consists of a catchment area, gutter, and storage tank. Gutters typically have a V-shaped, trapezoidal or rectangular cross-section. This work presents a case study on the design and performance analysis of three conventional and one novel, “wrapped” gutter cross-section along with the implementation of a novel gutter design in the developing world. A Team of undergraduate students performed the design and analysis and, though a service-learning experience in May 2013, investigated barriers to implementing rainwater harvesting in central Kenya. It was found that while gutters can be easily fabrication and installed using locally-available materials and skill-sets, for consumer, the potential return on investment was low and the cost of implementation was high. For producers and installers, non-uniform roof designs and conditions was a major obstacle.

Urban Road Cross Section Eco-Design Based on Storage-Infiltration of Rainwater and Snowfall

2011 ◽  
Vol 368-373 ◽  
pp. 3741-3744
Author(s):  
Hu Zhu Zhang ◽  
Hui Min Li
Keyword(s):  
Cross Section ◽  
Water Conservation ◽  
Green Space ◽  
Drainage System ◽  
Urban Road ◽  
Balance System ◽  
Adverse Action ◽  
Design Program ◽  
Practical Engineering ◽  
Traffic Organization

In order to deal with the problem of flood disaster, water balance system damage and eco-environment deterioration for cities with development of urbanization in rain and snow area, an urban road cross section eco-design program with storage-infiltration utilization of rainwater and snowfall was proposed with the purpose of groundwater eco-replenishment, water conservation and snowfall stack, also ecological cross section form that can be used in practical engineering and enhancement of infiltration capability for sunken green space of urban road were put forward, and some effective anti-infiltration measures for subgrade and pavement were proposed to prevent the adverse action on urban road from the water in the sunken green space. The eco-design program increases storage-infiltration of rainwater and snowfall with holding the function of traffic organization, drainage and road landscape that belongs to the traditional urban road cross section, and it changed a single drainage system into a compositive storage-infiltration-drainage system. The eco-design program provided a basis and reference for urban road cross section eco-design in rain and snow area.

scholarly journals EVALUASI PERENCANAAN DRAINASE MENGGUNAKAN SIMULASI HEC RAS 4.0 ( Studi Kasus : Jalan Budiman – Tembilahan)

2021 ◽  
Vol 7 (1) ◽  
pp. 30-39
Author(s):  
Jusatria . ◽  
M. Gasali M.
Keyword(s):  
Rectangular Cross Section ◽  
Rapid Development ◽  
Drainage System ◽  
Drainage Channel ◽  
The Road ◽  
Excess Water ◽  
The People ◽  
Discharge Simulation ◽  
The City ◽  
Duration Of Development

Abstract The rapid development of the city has resulted in the development of development in each city getting more massive with a relatively fast duration of development. This has very significant impacts on the livelihoods of the people. One of the impacts is flooding that occurs due to wrong land use and improper drainage makers. Drainage as a diversion system for excess water is needed to divert water that falls into the road body and tackle inundation that occurs when it rains. This is intended to reduce the risk of accidents due to slipping of tires due to water. The planning of the road surface drainage system in the case of the Budiman Kota Tembilahan road needs important attention in order to avoid flooding or accidents. In this study, an analysis of drainage planning was carried out with a simulation using hecras 4.0 software to simulate the planned drainage conditions on Jalan Budiman, Tembilahan city. After collecting data on the length of the drainage channel on Jalan Budiman, Tembilahan city and Catchment for the residential area on Jalan Budiman, Tembilahan city, as well as rainfall data for the last 10 years, the planned discharge and drainage for the drainage of Jalan Budiman, Tembilahan city are Qrencana = 0,141 m3/dt  dan Qsaluran = 0,264 m3/dt dimana Qs > Qr with a rectangular cross section. Then the calculation simulation can be done using HEC-RAS 4.0 software. The results of the analysis of the drainage planning of Tembilahan city roads state that the planned drainage using hecras simulations based on manual calculations is able to accommodate discharge and no runoff.   Keywords: Hec ras 4.0, discharge  , simulation Abstrak Pesatnya perkembangan kota mengakibatkan perkembangan pembangunan pada tiap – tiap kota semakin masif dengan durasi perkembangan yang relatif cepat. Hal tersebut memiliki dampak – dampak yang sangat signifikan bagi hajat hidup warga. Salah satu dampaknya ialah banjir yg terjadi diakibatkan tata guna lahan yang salah dan pembuat drainase yang tidak tepat. Drainase sebagai sistem pengalih kelebihan air sangat diperlukan untuk mengalihkan air yang jatuh ke badan jalan dan menanggulangi genangan yang terjadi ketika hujan. Hal tersebut dimaksudkan untuk menggurangi resiko kecelakaan karena tergelincirnya ban akibat air. Perencanaan sistem drainase permukaan jalan dalam kasus jalan budiman kota tembilahan perlu mendapat perhatian yang penting guna terhindar dari genangan banjir atau kecelakaan. Pada penelitian ini dilakukan analisis perencanaan drainase dengan simulasi menggunakan software hecras 4.0 guna mensimulasilkan kondisi drainase yang direncanakan pada Jalan Budiman kota Tembilahan. Setelah mengumpulkan data panjang saluran drainase di jalan Budiman kota Tembilahan dan Catchment Area pemukiman di Jalan Budiman kota Tembilahan, serta data curah hujan 10 tahun terakhir diperoleh debit rencana dan debit saluran untuk drainase Jalan Budiman kota Tembilahan adalah Qrencana = 0,141 m3/dt  dan Qsaluran = 0,264 m3/dt dimana Qs > Qr dengan penampang persegi empat. Kemudian dapat dilakukan simulasi perhitungan menggunakan software HEC-RAS 4.0.Hasil dari Analisis perencanaan drainase jalan budiman kota tembilahan menyatakan drainase yang direncanakan dengan menggunakan simulasi hecras yang berdasarkan hitungan manual mampu mengakomodasi debit dan tidak terjadi limpasan.   Kata kunci: Hec Ras 4.0, Debit, simulasi

scholarly journals Drainage Network System of Sekaran Village, Gunungpati District, Semarang City

2019 ◽  
Vol 21 (1) ◽  
pp. 39-45
Author(s):  
Karuniadi Satrijo Utomo ◽  
Yeri Sutopo ◽  
Muhammad Hamas Adi
Keyword(s):  
Cross Section ◽  
Main Channel ◽  
Topographic Maps ◽  
Network System ◽  
Drainage Network ◽  
Excess Water ◽  
Base Width ◽  
Water Height

Abstract. Drainage functions to drain, deplete, remove or transport water. Generally, drainage is defined as a series of water facility used to reduce and/or remove excess water from an area or land, so that the land can be functioned optimally. Drainage is also realized as an effort to control the quality of groundwater in relation to salinity. The case study was carried on in Sekaran Village, Gunungpati District, Semarang City. The area size of Sekaran Village is 6,21 km². According to the writing method, the author used tools and materials required in this research. The tools used were a roll meter and Arcmap software as a medium for data-processing, and the materials taken was data regarding information about the condition of Sekaran Village in the extent of topographic maps, rainfall data. The method of data calculation used manual calculations in accordance with the rational method to figure out the rain discharge, and the manning formula for channel flowrate. The numbers of design rainfall for 5 years and 10 years was 169,365 mm and 171,502 mm; while the design discharge with return period of 5 and 10 years, for example, in channel 1 was branch 1 was of 0,6772 m³/s and the main channel was 5,7910 m³/s; The economic channel dimensions for the main channels 1 and 4 were the base width B = 1,596 m ≈ 1.6 m and the water height h = 0,796 m ≈ 8 0,8 m, the cross section was square.

scholarly journals Perencanaan Jaringan Drainase Pemukiman Pada Perumahan Istana Safira Jalan Jambu Semanding Sumbersekar Dau Kabupaten Malang

2020 ◽  
Vol 5 (2) ◽  
pp. 50
Author(s):  
Silvester Wadan Koten ◽  
Suhudi Suhudi
Keyword(s):  
Rectangular Cross Section ◽  
Rectangular Channel ◽  
Drainage System ◽  
Channel Width ◽  
Drain Water ◽  
Secondary Channel ◽  
Channel Depth ◽  
Excess Water ◽  
Primary Channel ◽  
Channel Dimension

Drainage means to drain, dispose, or drain water. In general drainage can be defined as a series of water structures that function to reduce or remove excess water from an area or land, so that the land can be used optimally. The purpose of this research is to plan the drainage system of the Istana Safira Dau housing in Malang Regency, which in general is not all planned. Analysis and data management methods used are manual calculations in accordance with the rational method for calculating discharges, and the formula for finding the water level using h SNI for channel discharge. After the calculation, the primary channel dimension is obtained with the base channel width b = 0.50 m and channel depth 0.50 m, secondary channel dimensions are channel width b = 0.40 m and channel depth is 0.40 m, tertiary channel dimensions is channel width = 0.30 m and channel depth 0.30 m with guard height for each channel is 3% of the planned channel depth. Rectangular cross section of a rectangular channel.

Karpophoroi deities and the Attic cult of Ge. Notes on IG II2 4758

2014 ◽  
Vol 7 ◽  
pp. 193-203
Author(s):  
Jenny Wallensten
Keyword(s):  
The Earth ◽  
And Function

Karpophoros, fruit-bearing, is an epithet easily considered as “literary”, i.e., a poetic name with little or no relation to cult. The epigraphic sources, however, clearly show us that gods thus named were offered divine worship. The epithet is found in connection with several deities. Goddesses of agriculture, such as Demeter, and Ge, the Earth, naturally carry this name, but so do Zeus, Dionysos and a goddess known as “The Aiolian”, who was sometimes associated with Agrippina. This paper surveys deities known as karpophoroi and examines what their cult entailed. Its focus is, however, on a brief Acropolis inscription, IG II2 4758, where Ge is honoured as Karpophoros, in accordance with an oracle. The case study provides insights into the Attic cult of Ge, the epithet Karpophoros, as well as the use and function of epithets within Greek dedicatory language.

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