Методика гидравлического расчета инновационных конструкций системы отвода поверхностных сточных вод

2019 ◽  
pp. 56-61
Author(s):  
L. Vereshchagina ◽  
A. Ten ◽  
G. Gromov ◽  
D. Khudiakova
Keyword(s):  
Surface Runoff ◽  
Urban Areas ◽  
Open Systems ◽  
Heavy Traffic ◽  
Experimental Studies ◽  
Drainage System ◽  
Hydraulic Calculation ◽  
Water Runoff ◽  
Open Drainage ◽  
The Eu

Представлена методика гидравлического расчета открытых каналов (лотков) системы водоотвода АСО Qmax. Каналы предназначены для сбора и отведения поверхностных (дождевых, талых и поливомоечных) сточных вод с городских территорий различного функционального назначения: паркингов, складских комплексов, торговых центров, транспортных терминалов, автомагистралей, объектов дорожного сервиса, промышленных зон с интенсивным движением грузового автотранспорта, морских и речных причалов, аэродромов, спортивных объектов, внутриквартальных, парковых и других территорий, где допускается использование открытых систем водостока. Методика разработана специалистами АО МосводоканалНИИпроект с учетом законодательства и нормативнометодических документов Российской Федерации, регламентирующих проектирование систем отведения и очистки поверхностных сточных вод с территории поселений. В основе методики результаты экспериментальных исследований по определению гидравлических характеристик каналов системы водоотвода АСО Qmax, которые являются разновидностью открытых лотковых систем и широко используются в странах ЕС для благоустройства территорий.The method of hydraulic calculation of open canals of the surface runoff drainage system ACO Qmax is presented. The canals are designed to collect and drain surface (rain, snowmelt and street flush water) runoff from urban areas of various functional purposes: parking lots, warehouse complexes, shopping centers, transport terminals, highways, service area facilities, industrial areas with heavy traffic, marine and river terminals, airfields, sports facilities, local park and other areas where the use of open drainage systems is allowed. The method was developed by the experts of MosvodokanalNIIproject JSC taking into account the legislative, regulatory and procedural documents of the Russian Federation governing the design of systems for the removal and treatment of surface runoff from the territory of settlements. The method is based on the results of experimental studies on determining the hydraulic characteristics of canals of the ACO Qmax drainage system that are a sort of open systems and are widely used in the EU countries for land improvements.

scholarly journals Results of hydraulic tests of the ACO Qmax system pipeline

2021 ◽  
Vol 264 ◽  
pp. 03073
Author(s):  
Yuliya Bryanskaya ◽  
Aleksandra Ostyakova
Keyword(s):  
Water Flow ◽  
Surface Runoff ◽  
Experimental Studies ◽  
Drainage System ◽  
Resistance Coefficient ◽  
Computational Method ◽  
Hydraulic Calculation ◽  
Roughness Coefficient ◽  
Calculation Methods ◽  
Residential Areas

Polymer corrugated pipelines are a very promising type of construction that has many advantages over concrete and reinforced concrete structures that are widely used today for collecting and diverting surface runoff from residential areas and enterprise sites. To collect and divert surface runoff from residential areas and enterprise sites, the hydraulic characteristics of the drainage system made of corrugated polymer culverts of ACO Qmax are studied by computational and experimental methods. The experiments were carried out in the laboratory of Hydraulics and hydro-mechanics at different flow rates and different slopes. The kinematic and dynamic characteristics of the water flow in the pipeline were determined: the velocity, the roughness coefficient, and the hydraulic resistance coefficient were measured at different values of the pipeline filling. It is found that the characteristics of the water flow obtained by the computational method using a computer program differ from the experimental values, the reason for which, apparently, in the shortcomings of the computational program and the lack of accuracy of experimental measurements. Experimental studies were conducted to adjust the calculation methods of such pipelines used in the design and verification of hydraulic calculation methods of corrugated pipelines based on the software product ACO Qmax.

Hydraulic characteristics and calculation of the innovative systems of surface runoff disposal

2021 ◽  
pp. 46-51
Author(s):  
Ю.В. Брянская ◽  
А.Э. Тен ◽  
Н.Т. Джумагулова ◽  
Г.Н. Громов
Keyword(s):  
Cross Sections ◽  
Surface Runoff ◽  
Experimental Studies ◽  
Drainage System ◽  
Anthropogenic Pollution ◽  
Hydraulic Characteristics ◽  
Regulatory Requirements ◽  
The Subject ◽  
Intensive Development ◽  
Selection Of

В условиях интенсивного развития новых отечественных и зарубежных технологий, материалов и оборудования, применяемых для защиты окружающей природной среды от загрязнений техногенного происхождения, особую актуальность приобретают разработки новых систем отвода и очистки поверхностных сточных вод. Эти системы позволяют использовать последние достижения отраслевой науки и оптимизировать алгоритм выполнения операций и практических приемов их гидравлического расчета. Примером является инновационная система отвода поверхностных сточных вод АСО Qmax, которая относится к открытой системе каналов (лотков) для сбора и отведения поверхностных сточных вод, формирующихся при выпадении атмосферных осадков. Однако широкому применению данного вида конструкций в России препятствует отсутствие методики их гидравлического расчета, в том числе таблиц для подбора сечений (диаметров) каналов, которая бы удовлетворяла требованиям российской нормативно-методической базы проектирования систем отведения поверхностных сточных вод. В этой связи предметом данной статьи явилась оценка гидравлических характеристик трубопроводов, каналов (лотков) системы водоотвода АСО Qmax. Приведены результаты теоретических и экспериментальных исследований гидравлических характеристик системы АСО Qmaxс учетом адаптации для российских условий и нормативных требований, а также обоснование рекомендуемых параметров для их использования. In the context of the intensive development of new domestic and foreign technologies, materials and equipment used to protect the environment from anthropogenic pollution, the development of advanced systems for surface runoff removal and treatment is of special actuality. These systems provide for using the latest achievements of the sectoral science and optimizing the algorithm for performing operations and practical methods for the hydraulic calculations. An example of the innovative surface runoff disposal system is ASO Qmax, that refers to an open system of channels for the collection and disposal of surface runoff formed during precipitation. However, the widespread use of these facilities in Russia is hampered by the lack of a method for the hydraulic calculations, including tables for the selection of cross-sections (diameters) of channels that meet the requirements of the Russian guidelines and regulations for the design of surface runoff disposal systems. In this regard, the subject of this paper is the estimation of the hydraulic characteristics of pipelines, channels of ASO Qmax drainage system. The results of theoretical and experimental studies of the hydraulic characteristics of ASO Qmax system with account of the adaptation for the Russian conditions and regulatory requirements, as well as the justification of the recommended parameters for their use are presented.

Impact of urbanization on hydrologic response of a small Ontario watershed

1986 ◽  
Vol 13 (6) ◽  
pp. 620-630 ◽  
Author(s):  
D. J. Cook ◽  
W. T. Dickinson
Keyword(s):  
Seasonal Pattern ◽  
Large Diameter ◽  
Drainage System ◽  
Fold Increase ◽  
Annual Runoff ◽  
Water Runoff ◽  
Hydrologic Response ◽  
Unit Hydrograph ◽  
Open Drainage ◽  
Spring Runoff

The Speedvale Experimental Basin, a 210 ha watershed on the outskirts of Guelph, Ontario, was established in 1965 as an International Hydrological Decade project for the purpose of studying impacts of urbanization on hydrologic response. A relatively extensive hydrologic database regarding precipitation, streamflow, soil moisture, and groundwater has been assembled for the preurbanization period from 1966 to 1974 and for the period of ongoing development from 1975 to 1982. The study area, located physiographically within the Guelph Drumlin Field, was used for mixed agricultural purposes prior to 1974. During 1975 and 1976, 155 ha of the basin were serviced for development for light industrial and commercial usage, dramatically altering the configuration of the drainage system. The major alteration was the installation of a stormwater conveyance system, consisting of a large-diameter storm sewer (2.5 and 3.0 m) and a network of open drainage ditches outletting through ditch inlet catch basins into a main drainage channel.With the changes in land use in the basin have come changes in both volumetric and time distribution aspects of hydrologic response. Changes in the response include (i) an increase in the mean annual runoff coefficient by a factor of 1.5, (ii) an increase in the average annual maximum instantaneous discharge by a factor of almost 3.0, (iii) a change in the time of the annual peak flow from occurring solely in the spring runoff period to occurring throughout the various seasons, (iv) a change in the seasonal pattern of monthly runoff coefficients, with the greatest change observed in the summer and lesser changes observed in the other seasons, (v) a 3-fold reduction in unit hydrograph lag time, and (vi) a 3.5-fold increase in unit hydrograph peak discharge. Key words: urbanization, hydrology, surface water runoff, streamflow, watersheds.

scholarly journals Contributions to reduce the flood problems in critical points of the micro drainage system in the city of Carazinho

2019 ◽  
Vol 23 ◽  
pp. 6
Author(s):  
Carolina Pasquetti Koppe ◽  
Vinícius Scortegagna ◽  
Virgínia Meneguzzi ◽  
Anelise Sertoli Lopes Gil ◽  
Matheus De Conto Ferreira ◽  
...  
Keyword(s):  
Urban Environment ◽  
Flow Rate ◽  
Surface Runoff ◽  
Urban Areas ◽  
Hydrological Cycle ◽  
Drainage System ◽  
Control Measures ◽  
Control Devices ◽  
And Control ◽  
The City

With the emergence of excessive flooding in the urban environment, the need for unconventional drainage control measures within the limitations of conventional solutions becomes evident. In the present study, infiltration trenches and reservoirs that collect and reserve rainwater were designed as control devices, attenuating the socio-environmental impacts caused by waterproofing of urban areas in the hydrological cycle and in the behavior of the hydrographic basins in question. The measurements were made for two flooding points found in the city of Carazinho – RS, located on Marquês do Pombal Street and São Bento Avenue, due to the obstruction of gutters and street inlets, paving and waterproofing of the ground due to urbanization, lack of maintenance and cleaning of the micro drainage system along with the inability of the system to collect all the volume of water from the runoff. The reductions in flow rate in these areas through the use of trenches were 16% and 15% for the first and second flooding point, respectively, while the use of the delay reservoirs together with the infiltration trenches resulted in a 29% reduction in the first flooding point and 27.5% in the second flooding point. Therefore, it is evident that the use of unconventional control measures is vital to the reduction of the peaks of the flow rate and control of the surface runoff.

scholarly journals Reducing Stormwater Runoff from Parking Lot with Permeable Pavement

2018 ◽  
Vol 73 ◽  
pp. 05016 ◽  
Author(s):  
Suripin Suripin ◽  
Sachro Sri Sangkawati ◽  
Samto Atmojo Pranoto ◽  
Edhisono Sutarto ◽  
Budieny Hary ◽  
...  
Keyword(s):  
Urban Areas ◽  
Drainage System ◽  
Peak Discharge ◽  
Physical Models ◽  
Water Infiltration ◽  
Storm Water ◽  
Water Runoff ◽  
Permeable Pavement ◽  
Storm Water Runoff ◽  
Parking Lot

Increased urbanization has an impact on increased impervious surface, consequently the urban drainage system becomes gradually overloaded, with frequent spills and inundate urban areas. Upgrade or re-design the existing drainage system is not an effective solution because it does not address the source of the problem. It is necessary strategies for urbanization reduction of storm-water runoff. These strategies are aimed to reduce storm-water runoff mainly through water infiltration. One of the strategies is to develop permeable pavement. This study is aimed to test the capacity of permeable pavement through the development of full scale physical models in the parking lot. The results show that proposed permeable pavement are able to significantly reduce volume and peak discharge of storm-water runoff, delay the start of runoff and slow the peak discharge. The application of this proposed permeable pavement in the urban area is strongly recommended to reduce drainage load as well as to increase groundwater recharge.

scholarly journals Water supply and water runoff quality in the sub deciduous forest of the Coast of Oaxaca, Mexico

2021 ◽  
Vol 28 (1) ◽  
pp. 89-103
Author(s):  
Estrella E. Blancas-Díaz ◽  
◽  
Ernesto Castañeda-Hidalgo ◽  
Celerino Robles ◽  
Gerardo Rodríguez-Ortiz ◽  
...  
Keyword(s):  
Water Supply ◽  
Surface Runoff ◽  
Urban Areas ◽  
Physicochemical Parameters ◽  
Deciduous Forest ◽  
Water Bodies ◽  
Human Consumption ◽  
Water Runoff ◽  
Human Use ◽  
Santa Maria

Introduction: Land use change and waste discharge from coffee processing may be affecting quantity and quality of water supplying urban areas in the coastal region of Oaxaca.Objective: To determine the level of contamination of aquifers and estimate surface water runoff in micro-watersheds of Pluma Hidalgo and Santa María Huatulco in Oaxaca, Mexico.Materials and methods: Seven water supply points were analyzed during the rainy season of 2019. The following physicochemical parameters were determined: pH, total dissolved solids, electrical conductivity, hardness, total solids, chlorides, and chemical oxygen demand (COD). Surface runoff was estimated using the Raws and Prevert methods.Results and discussion. Water bodies are within the permissible limits for human use. The Chacalapilla spring was classified as moderately hard (85 mg CaCO3∙L-1), while the seven water bodies exceeded the permissible limit for COD (40 to 200 mg∙L-1); therefore, water is in a contaminated classification range and is not suitable for human consumption. Surface runoff values suggest a medium conservation condition of vegetation cover; areas with higher cover recorded lower runoff coefficients.Conclusions. The physicochemical parameters indicated that water from Pluma Hidalgo and Santa María Huatulco is suitable for human use, but not for drinking

scholarly journals The Research of the Suitability of Hydrostatic Water Level Sensor to Measure Storm Water Runoff Flow Rate with the Focus on the Influence of Sediments

2017 ◽  
pp. 336-344
Author(s):  
Vilmantė Karlavičienė ◽  
Raimondas Zaborovskis ◽  
Vaidas Vinciūnas ◽  
Mindaugas Rimeika
Keyword(s):  
Water Level ◽  
Flow Rate ◽  
Urban Areas ◽  
Experimental Studies ◽  
Storm Water ◽  
Water Runoff ◽  
Storm Water Runoff ◽  
Accuracy Of Measurements ◽  
Level Sensor ◽  
The Impact

Since most of the contaminants in surface waters fall with storm water runoff, it is very important to correctly describe the content of pollutants discharging with them (kilograms or tons) for a given unit of time (hour, shift, day, month or year). Measurements are complicated by the fact that the flow rate and pollutant concentration is very variable over time. The aim of the research was to determine the grain size of sweepings accumulated on the surfaces of the researched territory and to investigate the impact of storm water runoff sediments on the accuracy of measurements of water level height using the hydrostatic water level sensor. For the experiment four typical Vilnius city streets, two storm water runoff treatment plants and also the streets sweeping machine was chosen. Storm water runoff in urban areas has an abundance of sediment, therefore, studying the hydrostatic water level sensor DI 240 Diver suitability to determine storm water runoff flow rate, for the experimental studies the impact of sludge and sand for measuring accuracy was chosen. Particles with diameters ranging from 0.315 to 0.630 mm consisting the maximum weight (the average value of 24 g per 100 g of the sample) of street sweepings. Storm water runoff treatment plants sediments are approximately 60% of the smallest particles with a size of less than 0.05 mm. Particles of less than 0.25 mm consisting about 80% of sediment. During laboratory and full scale tests it was determined, that there is no significant affect of sediments on the accuracy of the hydrostatic water level sensor measurements. The average square error (standard deviation) was 0.567 cm when the measurement uncertainty was 0.0021 cm.

scholarly journals Modeling the effects of land-use and climate change on the performance of stormwater sewer system using SWMM simulation: case study

2021 ◽  
Author(s):  
Salam Naje Hussain ◽  
Haider M. Zwain ◽  
Basim K. Nile
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Surface Runoff ◽  
Urban Areas ◽  
Drainage System ◽  
Simulation Models ◽  
Critical Conditions ◽  
Sewer System ◽  
Effects Of Land Use ◽  
Total Flooding

Abstract Flooding of stormwater drainage systems represents a major problem in developing urban areas that could be influenced by land-use and climate change. Flooding problems can be assessed using simulation models such as the stormwater management model (SWMM). In this study, the generation of intensity duration frequency curves (IDF) that integrates climate change effect was conducted for Al-Najaf Governorate in Iraq for the first time. In addition, the effects of land-use and climate change on the stormwater sewer system of Al-Ameer District was simulated using SWMM. The results indicated that by increasing the sub-catchment area from 50 to 100%, an increment in total surface runoff from 20,380 to 37,350 m3, and total flooding from 10,513 to 26,032 m3 have occurred, respectively. As a response to climate change, changing the return period from 2 to 5 years has increased the total surface runoff from 14,120 to 27,110 m3 (representing 48% of raise), and total flooding increased from 5,914 to 17,591 m3 (accounting 72% of increment). To conclude, flooding locations and magnitude were identified, whilst the system failed to discharge surface runoff at critical conditions, whereas the effect of climate change on the stormwater drainage system was more adverse than the effect of land-use.

scholarly journals Hydraulic calculation of horizontal open drainages

2019 ◽  
Vol 97 ◽  
pp. 05039 ◽  
Author(s):  
Aybek Arifjanov ◽  
Maqsud Otaxonov ◽  
Luqmon Samiev ◽  
Shamshodbek Akmalov
Keyword(s):  
Flow Velocity ◽  
Drainage System ◽  
Soil Condition ◽  
Drainage Water ◽  
Hydraulic Calculation ◽  
Good Effect ◽  
Deep Drainage ◽  
Open Drainage ◽  
Drainage Systems ◽  
Motion Mode

In article analysed the factors influencing the hydraulic processes which arise in the open horizontal drainage systems. Open drainages plays important role in order to improve the ameliorative condition of the agricultural area, salt washing on the soil. It is emphasized that the deep drainage in our region has a good effect on the soil condition and salt removing. At present, efforts are being made to improve the productivity of the collectors to clean and built. As example the collector drainage systems in Syrdarya region are listed. It is observed that the motion mode of open drainage flows is physically identical. Due to the complexity of equations in the unstable motion mode, the drainage water flow scheme in the collectors reflects the hydraulic calculation of the movement. Researches were provided in open agricultural drainage system of Syrdarya region and analysis have been done in natural field conditions. It has been noted when slope of the drainage bed is equal to i<0,0005 intensity of deformation were very high, when slope was between 0,0005<i<0,0011 intensity of deformation of collector bed was equal to the minimum level. In this article provided hydraulic calculation for Syrdarya region drainage system for choosing dynamical stable shape of bed. Those hydraulic calculations and projections ensure collectors with long time period of exploitation condition. Calculation and analyses were done with taking account trapezoidal capacity of the stream in drainage system, and the results of studies on increasing the flow efficiency are reflected. Analysed that when slope will increase until 20% discharge capacity will increase because of high average flow velocity increased by 7-8 times and discussed difference of them. As a result of the hydraulic calculation, the slope of the drainage increased from i-0,00048 to i-0,0006, the fact that the flow capacity increased by 25% due to the increase because of flow velocity.

scholarly journals Study on the Implementation of Drainage System at Universiti Tun Hussein Onn Malaysia (UTHM)

2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Mohd Luqman Ismail ◽  
◽  
Sharifah Meryam Shareh Musa ◽  
Keyword(s):  
Surface Runoff ◽  
Stormwater Management ◽  
Drainage System ◽  
Structured Interviews ◽  
Urban Stormwater ◽  
Open Drainage ◽  
Runoff Water ◽  
Drainage Systems ◽  
Urban Stormwater Management ◽  
Land Drainage

Drainage systems play an important role in the development of managing surface runoff water. This is because without proper management of the drainage system, it can cause flooding in the area. Universiti Tun Hussein Onn Malaysia (UTHM) has suffered floods and caused significant losses. Therefore, the purpose of this article is to study the types of drainage systems available around the UTHM area. In this regard, semi-structured interviews were conducted with a number of respondents from the Development and Maintenance Office UTHM to study the problems of each existing drainage system around the area and to look at ways of improving the existing drainage system. The types of drainage systems available at UTHM have been identified as conventional drainage systems, Urban Stormwater Management Manual (MSMA), monsoon drainage, main drainage and land drainage. Problems such as drainage system, waste and clogged drainage also being identified. Among the improvements identified are replacing MSMA with open drainage. In conclusion, the study of drainage system implementation at UTHM can provide a clearer picture of the drainage system used around the study area.

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