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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Avaliação da precisão da declividade da técnica de perfuração direcional horizontal para instalações de redes de esgoto / Evaluation of the gradient precision of the horizontal directional drilling technique for the installation of gravity sewers

Jamal, Fernando Galvanin 26 June 2008 (has links)
O presente trabalho está focado no método de perfuração direcional horizontal (HDD) para instalação de redes de esgoto gravitacional. Descrevem-se os resultados de diferentes técnicas com o objetivo de se atingir a exigência de declividade. Para tanto foram executados 4 furos experimentais simulando trechos daquelas redes, com extensão de 30 m e tubulação de PEAD com diâmetro externo de 125 mm. Estas instalações foram executadas na cidade de São Carlos, Brasil, em um solo classificado granulometricamente como uma areia argilosa. Para cada uma das 4 instalações, adotou-se um processo construtivo diferenciado. Esta diferenciação se deu a partir do diâmetro do alargador adotado, do número de passadas do mesmo e da execução de furos verticais para alívio de pressão no espaço anelar assim como medidas diretas de profundidade do furo piloto. Após a instalação dos dutos foram realizadas medidas altimétricas no interior dos mesmos possibilitando avaliar quantitativamente os resultados obtidos. Estes resultados indicam que ainda é necessário refinar a técnica de perfuração direcional para a execução das redes de esgoto. Entretanto é possível observar que as variações empregadas na execução de cada um dos furos conduzem a um caminho de melhoria nos resultados obtidos. Esta melhoria pode ser observada nos furos onde o alargador adotado apresentava menor diâmetro conduzindo a menores desvios na posição final do duto. Salientam-se também os benéficos resultados da execução dos furos verticais que conduziram a menores pressões no espaço anelar assim como possibilitaram medidas altimétricas diretas da posição do furo piloto. Desta forma, é provável que com um maior número de experimentos e incrementos tecnológicos se atinja o objetivo final, ou seja, executar redes de esgoto gravitacional com declividade constante e baixa. Em paralelo nas instalações executadas foram realizados testes para avaliação da precisão e acurácia do sistema de navegação responsável pelo fornecimento de informações de posição e temperatura da ferramenta de corte durante a execução do furo piloto. Este trabalho contempla ainda, a elaboração de uma nova solução para as instalações de esgoto executadas através do HDD. Esta solução propõe a aplicação de um esforço de tração a um elemento externo, uma geogrelha que envolve a tubulação, visando posicionar a mesma em declividade constante. Face a seu caráter inovador foram desenvolvidos equipamentos e procedimentos de ensaio de laboratório, para avaliar a aplicabilidade da solução na prática / The present work is focused on the horizontal directional drilling (HDD) method to install gravity sewers. The results of different techniques are described intending to meet the demands of gradient. Therefore, 4 experimental pilot bores were drilled simulating a section of those structures extending 30 m with HDPE pipelines of 125 mm external diameter. Those installations were engineered in the city of São Carlos, Brazil, in a clayey sand. For each of the 4 installations a distinct constructive process was adopted. Such characteristic was on account of the diameter of the selected reamer, the number of reamer steps and the vertical drills performed to relieve the pressure in the annular space, as well as the direct depth measurements of the pilot hole. After installing the pipes, altimetric measurements were performed inside them, hence enabling to quantitatively assess the obtained results. These results indicate the need to further refine the directional drilling technique for sanitary sewers. Yet it can be seen that the employed variations for each of the holes lead to an improved course of action with the observed results. Such improvement is perceived in the holes where the selected reamer had a smaller diameter, hence allowing for less displacement in the pipes final position. Also emphasized are the resulting benefits of the vertical drills that lead to less pressure in the annular space, as well as enabling altimetric measurements of the pilot hole position. Thus, it is presumed that with further experiments and technological developments the final objective is reached, meaning, putting into effect constant and low level gradient sewer networks. Tests for precision and accuracy assessment of the tracking system were also performed in each tube installed. The tracking system is responsible for providing information related to position and temperature of the drill head during the drilling operation. The steps for the development of a new HDD solution for sewer installation are presented. The idea is based on the application of a tensile force to an element external to the product, aiming at attaining a constant gradient. Equipments and procedures developed for this new technique are described.
2

Savitakio ir vakuuminio nuotakyno palyginamoji analizė / Gravity and vacuum sewer system comparison analysis

Navickas, Marius 14 January 2009 (has links)
Magistro studijų baigiamasis darbas, 58 puslapiai, 46 paveikslai, 10 lentelės, 32 literatūros šaltiniai, 9 lietuvių kalba ir 23 už sienio kalba Tyrimo objektas – Vakuuminis ir savitakinis nuotakynas. Darbo tikslas – atlikti vakuuminio ir savitakinio nuotakyno palyginamąją analizę. Uždaviniai: 1. Išanalizuoti sistemų privalumus ir trūkumus; 2. Suprojektuoti savitakinį ir vakuuminį tinklą pasirinktai gyvenvietei; 3. Atlikti suprojektuotų tinklų ekonominė analizė Tyrimo metodai – lietuvių ir už sienio mokslinės literatūros lyginamoji analizė, scheminio vaizdavimo metodas, projektavimas. Išstudijavus Lietuvių ir užsienio literatūrą apie vakuuminį bei savitakinį nuotakyną, apžvelgta dabartinė nuotakynų būklė Lietuvoje, atlikta palyginamoji analizė, nustatyti pagrindiniai sistemų privalumai bei trūkumai, apžvelgtos vakuuminės sistemos pritaikymo sritys. Vilniaus raj. Sakališkių gyvenvietei suprojektuoto vakuuminio bei savitakinio tinklo analizė parodė, kad vakuuminio nuotakyno statybos kaštai yra beveik dvigubai mažesni negu savitakinio. Atlikta analizė parodė, kad vakuuminiai nuotakynai yra perspektyvūs tam tikromis sąlygomis, tačiau Lietuvoje nepagristai nenaudojami. Vakuuminiai nuotakynai yra nepakeičiami projektuojant lygiose, retai apgyvendintose kaimiškose vietovėse. Priimant sprendimą dėl gyvenvietės nuotekų sistemos pasirinkimo, turi būti atliktas bent dviejų skirtingų sistemų variantų palyginimas. / Master degree final work consists of 58 pages, 46 pictures, 10 tables and 32 literatures. Test object – Vacuum and gravity system. Work purpose is to perform vacuum and gravity sewer system’s comparison analysis. Main tasks: 1. Analyze systems advantages and disadvantages; 2. Project gravity and vacuum systems for chosen village; 3. Perform economical analysis for projected systems; Test methods are Lithuanian and foreign scientific literatures comparison analysis, schematic representation method, planning. Overviewed Lithuanian and foreign scientific literature about vacuum and gravity sewer system was overlooked now days sewer situation in Lithuania, completed systems comparison analysis, identified the main systems advantages and disadvantages, overlooked vacuum sewer systems appliances areas, for Sakaliskes village was projected vacuum and gravity systems. Accomplished analysis showed that vacuum sewers are perspective under certain conditions, but in Lithuania interfere unused. Vacuum sewers are unchangeable in flat territories and in rural areas. Before project starts, there should be completed comparison of vacuum, gravity and pressure sever systems.
3

Avaliação da precisão da declividade da técnica de perfuração direcional horizontal para instalações de redes de esgoto / Evaluation of the gradient precision of the horizontal directional drilling technique for the installation of gravity sewers

Fernando Galvanin Jamal 26 June 2008 (has links)
O presente trabalho está focado no método de perfuração direcional horizontal (HDD) para instalação de redes de esgoto gravitacional. Descrevem-se os resultados de diferentes técnicas com o objetivo de se atingir a exigência de declividade. Para tanto foram executados 4 furos experimentais simulando trechos daquelas redes, com extensão de 30 m e tubulação de PEAD com diâmetro externo de 125 mm. Estas instalações foram executadas na cidade de São Carlos, Brasil, em um solo classificado granulometricamente como uma areia argilosa. Para cada uma das 4 instalações, adotou-se um processo construtivo diferenciado. Esta diferenciação se deu a partir do diâmetro do alargador adotado, do número de passadas do mesmo e da execução de furos verticais para alívio de pressão no espaço anelar assim como medidas diretas de profundidade do furo piloto. Após a instalação dos dutos foram realizadas medidas altimétricas no interior dos mesmos possibilitando avaliar quantitativamente os resultados obtidos. Estes resultados indicam que ainda é necessário refinar a técnica de perfuração direcional para a execução das redes de esgoto. Entretanto é possível observar que as variações empregadas na execução de cada um dos furos conduzem a um caminho de melhoria nos resultados obtidos. Esta melhoria pode ser observada nos furos onde o alargador adotado apresentava menor diâmetro conduzindo a menores desvios na posição final do duto. Salientam-se também os benéficos resultados da execução dos furos verticais que conduziram a menores pressões no espaço anelar assim como possibilitaram medidas altimétricas diretas da posição do furo piloto. Desta forma, é provável que com um maior número de experimentos e incrementos tecnológicos se atinja o objetivo final, ou seja, executar redes de esgoto gravitacional com declividade constante e baixa. Em paralelo nas instalações executadas foram realizados testes para avaliação da precisão e acurácia do sistema de navegação responsável pelo fornecimento de informações de posição e temperatura da ferramenta de corte durante a execução do furo piloto. Este trabalho contempla ainda, a elaboração de uma nova solução para as instalações de esgoto executadas através do HDD. Esta solução propõe a aplicação de um esforço de tração a um elemento externo, uma geogrelha que envolve a tubulação, visando posicionar a mesma em declividade constante. Face a seu caráter inovador foram desenvolvidos equipamentos e procedimentos de ensaio de laboratório, para avaliar a aplicabilidade da solução na prática / The present work is focused on the horizontal directional drilling (HDD) method to install gravity sewers. The results of different techniques are described intending to meet the demands of gradient. Therefore, 4 experimental pilot bores were drilled simulating a section of those structures extending 30 m with HDPE pipelines of 125 mm external diameter. Those installations were engineered in the city of São Carlos, Brazil, in a clayey sand. For each of the 4 installations a distinct constructive process was adopted. Such characteristic was on account of the diameter of the selected reamer, the number of reamer steps and the vertical drills performed to relieve the pressure in the annular space, as well as the direct depth measurements of the pilot hole. After installing the pipes, altimetric measurements were performed inside them, hence enabling to quantitatively assess the obtained results. These results indicate the need to further refine the directional drilling technique for sanitary sewers. Yet it can be seen that the employed variations for each of the holes lead to an improved course of action with the observed results. Such improvement is perceived in the holes where the selected reamer had a smaller diameter, hence allowing for less displacement in the pipes final position. Also emphasized are the resulting benefits of the vertical drills that lead to less pressure in the annular space, as well as enabling altimetric measurements of the pilot hole position. Thus, it is presumed that with further experiments and technological developments the final objective is reached, meaning, putting into effect constant and low level gradient sewer networks. Tests for precision and accuracy assessment of the tracking system were also performed in each tube installed. The tracking system is responsible for providing information related to position and temperature of the drill head during the drilling operation. The steps for the development of a new HDD solution for sewer installation are presented. The idea is based on the application of a tensile force to an element external to the product, aiming at attaining a constant gradient. Equipments and procedures developed for this new technique are described.
4

Studie odkanalizování vybrané obce / The study of sewerage in selected municipalities

Kolář, Tomáš January 2018 (has links)
The subject of this diploma thesis is a study of two variants of sewer network of Cetechovice. Variant solutions include the use of existing segments supplemented by new gravitational or pressure sections. The proposed variant solutions are then economically assessed.
5

Studie variant odkanalizování obce do 2000 EO / The study alternatives village up to 2000 PE

Krupicová, Simona January 2020 (has links)
The diploma thesis deals with the design of variants of sewerage and wastewater disposal in the selected municipality. Solved area for this work is the village Rovečné with the local part of Malé Tresné. The aim of this work is to propose a suitable variant and to assess it from the economic point of view with regard to grant titles. The author deals with the selection of a suitable method of sewerage of the area of interest and subsequent waste water disposal, based on the relevant standards and related regulations. The proposed options are then assessed from an economic point of view and a suitable solution option is recommended.
6

Odkanalizování obce do 2 tisíc obyvatel / Drainage of the village up to 2000 people

Klíma, Aleš January 2013 (has links)
In this thesis I deal with the drainage of Hněvošice village (the village up to 2000 inhabitants). I made a technical and economic evaluation of three possible drainage systems (gravity sewers, vacuum sewers, pressure sewers). After assessing I have chosen one of them, the gravity sewers. Then I made a complete design of the sewers including design sewerage treatment plant.
7

Livscykelkostnadsanalys för två typer av spillvattensystem / Lifecycle and cost analysis of two types of sewerage systems

Månsson, Victor, Lexander, Robin January 2020 (has links)
För att klara av den befolkningsökning som sker i städerna projekteras nybyggnadsområden. Innan byggnation av bostäder kan ske måste ett beslut tas om val av spillvattensystem. I nuläget saknas enkla hjälpmedel för att jämföra och göra val baserat på systemens totala kostnader under dess livslängd. Målet med detta arbete var att ta fram en beräkningsmall som kan göra en livscykelkostnadsanalys samt vara ett komplement vid projektering och val av spillvattensystem. Topografin och områdesspecifika kostnader bryts ner och förs in i beräkningsmallen för den sträcka där spillvattenledningen ska anläggas. Mallen kontrollerar därefter om områdets förutsättningar uppfyller de krav som finns för spillvattenledningar eller ej. Resultatet som erhålls av beräkningsmallen påvisar initiala-, årliga och ackumulerade kostnader för de båda systemen. Skillnader och eventuella brytpunkter mellan ackumulerad kostnad för de båda systemen redovisas och kan användas som underlag vid val av spillvattensystem. Arbetet visade att det finns ett stort b / In order to cope with the population increase that occurs in the cities, new construction areas are being planned. Before the construction of housing can take place, a decision must be made regarding the choice of sewerage system. At present there are no simple tools to compare and make choices based on the systems total lifetime cost. The aim of this thesis has been to develop a calculation template that can perform a life cycle cost analysis and to be a complement to the project planning and choice of sewerage systems. The topography and area-specific costs are broken down and entered into the calculation template for the distance where the wastewater pipeline is to be constructed. The template then checks whether the area's conditions meet the requirements for wastewater pipelines or not. The result obtained from the calculation template shows initial, annual, and accumulated costs for the two systems. Differences and possible breakpoints between the accumulated cost of the two systems are reported and can be used as a basis for decision. The work showed that there is a great need for supporting tools to facilitate the planning and decision making of water systems.
8

Variantní řešení odkanalizování obce Dětkovice / Alternative design of the Dětkovice sewer network

Vrána, Radek January 2017 (has links)
The aim of this diploma thesis is to elaborate alternative designs of the Dětkovice sewer network. The first part deals with reasons of this work and the area of interest. In the next part the thesis deals with describe of current condition and proposed alternative designs. Furthermore, the economic assessment of alternative designs is elaborate.
9

Zdravotně technické instalace v domě pro seniory / The Sanitary Instalation in Retirement Home

Minář, Lukáš January 2022 (has links)
The goal of this diploma thesis is the design of the sanitary installations and gas main in the pension for pensioners. The building has three floors above ground and one underground floor. The building will be covered with a hiped roof. On the first floor there is the technical background of the building, Reception and kitchen with dining room. The basement is located just below the kitchen and serves as a cloakroom for kitchen staff. The building will be designed to use as much non-potable water as possible in the form of rainwater, which will be collected from the roofs. The theoretical part deals with the use of non-potable water as operating water in buildings. The calculation and project part deals with the gravity sewer system, plumbing and gas main in the building.

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