Ingeniería Civil y Mecánica

Permanent URI for this communityhttp://repositorio.uta.edu.ec/handle/123456789/898

Browse

Now showing 1 - 13 of 13

Análisis de la correlación entre CBR, DCP, propiedades índice y mecánicas en suelos de las parroquias el Corazón, Pinllopata y Ramón Campaña del cantón Pangua, provincia de Cotopaxi
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2024-08) Ojeda Martínez, Aracelly Nathaly; Pérez Maldonado, Ruth Lorena
As time passes, roads face an increase in the loads that the pavement structures must support. The analysis of the correlation between CBR, DCP, index and mechanical properties of 12 soil samples collected in the study sectors was carried out. The index properties: the liquid limit, plasticity, plasticity index and granulometry, while the mechanical properties: density, optimal humidity and support capacity. CBR and DCP tests were carried out to determine the resistance and bearing capacity of the soils. For the correlations, an analytical approach methodology was used to analyze the data collected in the field and laboratory, and with these define simple and multiple correlations to obtain, from one of them, the CBR value necessary for the design of the flexible pavement in one of them. the routes studied. For which the qualitative and quantitative research method was applied, which allowed determining the data necessary for the calculation of the flexible pavement structure under the AASHTO 93 methodology. The results obtained were used to design the structure of the flexible pavement according to AASHTO Method 93, based on the CBR values obtained in the laboratory and through selected correlations, specific thicknesses were determined for the asphalt layer (10 cm), the granular base (15 cm) and the subbase (15 cm), with the option of starting with an initial asphalt layer 5 cm thick.
Análisis de las correlaciones entre propiedades índice y mecánicas con la resistividad eléctrica de suelos granulares en la zona 2 de la ciudad de Ambato
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2020) Tenecota Paredes, Esteban Wladimir; Portilla Yandún, Favio Paúl
At the beginning of the project, information was researched on preliminary microzonation studies, with the objective of use selected points of these works and corroborating the information presented to have a starting point. A macro project was established to cover 4 areas of the city of Ambato and increase the sample size of the research. To get started the technical part, a route view was made identifying the 40 points selected for the trials, which 10 were divided for each area. The tests were carried out in the field and in turn samples were taken of the points destined to perform laboratory tests contemplating the index and mechanical properties. With the results obtained through the tests, the information was processed by software using the least squares statistical system for the formation of regressions and correlations, which served to establish simple and multiple correlations. The main subjects to form variables were the index and mechanical properties, the electrical resistivity and the California Bearing Ratio (CBR) test. Correlation coefficients that meet more than 50 percent were selected and found, coefficients did not reach this value were discarded. Finally, 30 correlations were selected having values of correlation coefficients R2 ranging from 50 to 92 percent, indicating that the electrical resistivity method is a trustworthy, efficient and economical option to evaluate properties of granular soils.
Análisis de las correlaciones entre propiedades índice y mecánicas con la resistividad eléctrica de suelos granulares en la zona 4 de la ciudad de Ambato
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2020) Mera Parra, Patricio David; Portilla Yandún, Favio Paúl
This research analyses electrical resistivity as an indirect method to estimate several index and mechanical properties of granular soils, the investigation process included: At first, a macro project was developed, this project includes other four investigations in order to increase the amount of samples; afterwards, a topographic and geologic recognition of the considered zones were done. Inside this zones, forty points were randomly selected, from which ten belongs to the present study, on those points, the field tests were made and the samples were taken. Once the index and mechanical properties results were obtained and the classification of soils were made, various regression analysis, using the least square method, were conducted, from which only the models that presented a logical relationship and higher correlation coefficients were selected. Field and laboratory tests as well as soil sampling were done following the American Association of State Highway and Transportation Officials and the American Society for Testing and Materials standards. Twenty four, simple and multiple, correlations are presented as result, the R² values vary from 66% to 94%, proving that electrical resistivity can be used as an economical and fast way to estimate certain granular soils’ properties.
Análisis y evaluación de las propiedades físicomecánicas de suelos mediante el desarrollo de un software específico, aplicando la normativa AASHTO y ASTM
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2022-09) Merino Jiménez, Steven David; Pérez Maldonado, Ruth Lorena
The present research work consists of the development of a program coded in a graphical interface in an appropriate software, for the processing of data from soil mechanics tests: natural moisture, field density, granulometry, Attemberg limits, SUCS and AASHTO soil classification, modified Proctor, and California Bearing Ratio, having as input data the information collected from performing such tests. For the creation of the program it was necessary to review the different criteria of the tests according to AASHTO, ASTM, INEN standards, in order to standardize the calculation processes both manually and using the program. The verification and demonstration of the validity of the results was carried out by checking the manual calculation and the program, analyzing three samples taken, obtaining a null error, which verifies that all the information obtained with the program is totally reliable. As a result, a soil manual and coding algorithms were elaborated.
Correlación entre el CBR, DCP y las propiedades índice y mecánicas en suelos, de las parroquias Ulba y Río Verde, cantón Baños de Agua Santa, provincia de Tungurahua
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2021-09) Sánchez Chancusig, Silvia Paulina; Frías Torres, Alex Xavier
The present experimental work aims to find different correlations between the index and mechanical properties of soils belonging to the parishes of Ulba and Río Verde of the Baños de Agua Santa canton of the province of Tungurahua. To start the investigation, 12 soil samples were extracted from the four routes considered in the project. To obtain these values to be implemented in the process of correlation between the index and mechanical properties of the soils, both field and laboratory tests have been carried out in compliance with the different regulations established by AASHTO, ASTM and INEN for the execution in each study. After the evaluation and analysis process, the SUCS and AASHTO soil classification were determined, as the characteristics of each of the sample’s values, with which a total of 24 correlations were reached that exceed a coefficient of determination of 50 per cent, considering them as acceptable. Once the values of the laboratory soil support capacity (CBR) are known, such as that obtained by property correlation, we proceed to the design of the flexible pavement appreciating that the thicknesses of each layer are equivalent for each design. Because of the similarity between the CBR lab and CBR correlation.
Correlación entre el CBR, DCP, propiedades índice y mecánicas en suelos del cantón Píllaro; parroquia Marcos Espinel; de la provincia de Tungurahua
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2021-03) Manzano Ortiz, Patricia Monserrath; Portilla Yandún, Favio Paúl
The purpose of this experimental work is to determine the correlation between the laboratory CBR and the index and mechanical properties of the soils of the Marcos Espinel parish of the Píllaro canton, Tungurahua province. For the investigation, 12 soil samples were taken from different roads of the parish, a rectangular pit of 1.50 m x 1.50 m and 1.00 m deep was made, removing the topsoil layer, taking an altered sample of approximately 30 kg at each point. Field and laboratory tests were carried out to know the type of soil and its characteristics, when the tests were completed, the results were analyzed and 22 correlations were obtained between the properties of the soil whose coefficient of determination varies between 50 percent and 97 percent, that is say are acceptable correlations. The results obtained through the correlations serve as a guide for preliminary pavement designs and that the tests carried out serve to evaluate the quality of the terrain for subgrade, sub-base and pavement base, and will also contribute to the zoning of the different types of soils in the area, Píllaro canton, Tungurahua province.
Diseño geométrico de carretera y de la estructura de pavimentos de 5.3 km de vía desde la comunidad Lushianta hasta Ardilla Urku de la parroquia San Pablo, cantón Archidona, provincia de Napo
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2023-09) Flores Ledesma, Cristopher Alexander; Bayas Altamirano, Myriam Marisol
The road project connecting the communities of Lushianta with Ardilla Urku in the San Pablo Parroquia, Archidona Canton, is presented due to the identified need to improve the road's geometric design, thus enhancing the living conditions of the residents and reducing product transportation time while promoting social and economic development in the area. During the process, a comprehensive topographic survey of the road was carried out, and soil studies were conducted, determining that the predominant soil type is high plasticity clay (CH), following SUCS and AASHTO standards. Likewise, a traffic study was conducted to identify the road type, resulting in an Annual Average Daily Traffic (AADT) of 86 vehicles/day in both directions, considering a design period of 25 years. This classified the road as a Class V Local Road with a total length of 5.30 km. Based on the gathered information about the soil and traffic, the pavement structure was determined, which will consist of effective thicknesses to ensure the functionality and safety of the road. To conclude the process, a unit price analysis was carried out to obtain a referential budget for the technical project. This analysis is essential to have a clear idea of the necessary resources and to adequately plan the execution of the proposal.
Diseño geométrico de la vía Oasis Barranquilla, correspondiente a una longitud de 4.9 km perteneciente a la parroquia El Triunfo, cantón Pastaza, provincia de Pastaza
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2023-02) Castro Ortiz, Jennifer Lisseth; Bayas Altamirano, Myriam Marisol
This project seeks to provide a solution to the need for road communication between two sectors such as the Oasis and Barranquilla communities belonging to the El Triunfo parish of the Pastaza canton, so that it can improve the living conditions of the sectors, contributing to trade and reduce transportation time from one place to another. For the development of the project, the parameters were changed based on the regulations of the Ministry of Transport and Public Works 2003, AASHTO and SUCS. The topographic survey was carried out with the total station, comprising a topographic strip of 30 meters. Through the soil studies that were carried out with pits every 500m, it was obtained that it corresponded to a clayey soil of low and high plasticity according to the AASHTO and SUCS standards, therefore, improvement soil was implemented in a 60cm thick layer to increase the bearing capacity. A manual vehicle count traffic analysis was carried out for seven consecutive days and twelve hours a day, giving a TPDA of 171 vehicles per day for a design period of 20 years, consequently, a type IV collector road was produced with a width of 3.65 m for each lane. According to the soil study, the structural layer of the pavement was obtained, which guarantees the safety and functionality of the road. Finally, the referential budget was made with the necessary items for the construction of the project.
Diseño geométrico de la vía que une al sector Chilipata hasta el puente del sector Los Sauces, del cantón Patate, provincia de Tungurahua
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2024-02) Chico Lezano, Katheryn Vanessa; Moya Medina, Dilon Germán
Patate is a canton that belongs to the province of Tungurahua, the predominant economic activity is based on livestock, agriculture and commerce, to support the development of these sectors the canton needs roads that are in good condition and an alternative route that directly connects with the main avenue. To satisfy these needs, the proposed road from the Chilipata sector to the Los Sauces sector will provide security and fluid mobility. For this project, a topographic survey was developed with precision equipment. The vehicle volume count was carried out on a road adjacent to the project road during 12 hours a day, 7 days a week, and subsequently the road was designed with the help of an engineering program applying the regulations in force in the country MOP 2003. Finally, the relevant studies were carried out on the soil samples collected in the field, which were (moisture content, granulometry, attemberg limits, CBR, proctor) which helped in the design of the pavement structure by applying AASHTO 93 regulations. After carrying out preliminary studies, it has been found that the project area has an undulating relief, the road to be designed is classified as class I, and through soil studies it was identified that the area has silty sandy soil with a for which the structure of The asphalt layer is made up of a 5cm flexible running layer, a 15cm base layer and a 20cm base.
Diseño geométrico vial y del pavimento de la vía que conecta Laipo Chico-Laipo Grande, en la parroquia Juan Montalvo, cantón Latacunga, provincia de Cotopaxi
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2022-09) Moposita Jijón, Jessica Belén; Bayas Altamirano, Myriam Marisol
The road project connects the Laipo Chico-Laipo Grande sectors of the Juan Montalvo Parroquia, Canton Latacunga, and presents the need to propose a geometric road design to improve the living conditions of the inhabitants and thus reduce the travel time of people and strengthen economic and social development. For the development of the methodology, the parameters established by the MOP 2003, SUCS and AASHTO standards were used. The topographic survey of the road was carried out and through soil studies it was established that the predominant soil is inorganic silt (ML) according to SUCS and AASHTO standards. A traffic study was carried out to identify the type of road, resulting in a TPDA of 675 vehicles/day in both directions of traffic for a design period of 20 years, allowing the road to be classified as a Class III collector road with a length of 3.99 km. Based on the soil study, the pavement structure is determined, which will be made up of effective thicknesses that guarantee a functional and safe road. Finally, a unit price analysis was carried out to determine the reference budget for the technical project.
Diseño geométrico vial y del pavimento de la vía Salcedo - Alpamalag en los sectores San Andrés de Pilaló - San Pedro de Jachaguango desde la abscisa 0+000 hasta la abscisa 4+500 perteneciente al cantón Salcedo, provincia de Cotopaxi
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2024-08) López Uribe, Santiago Ismael; Pérez Maldonado, Ruth Lorena
The geometric design of the Salcedo – Alpamalag road was carried out due to various problems such as the difficulty of transportation for farmers in the sector, poor condition of the road and its lack of maintenance, resulting in low economic production in the adjacent sectors. The technical project began with a prior inspection of the place, in order to collect information and carry out the topographic survey with high precision equipment (RTK), subsequently a vehicle count was carried out for 7 days for 12 hours a day to obtain traffic levels and then its TPDA, then 6 soil samples were extracted at different points of the road, which were taken to the faculty laboratories for their respective tests of moisture content, granulometry, Atterberg limits, Proctor compaction and CBR, with the help From the CBR data of the soil, it was possible to design the structure of the pavement and the thicknesses corresponding to each of its layers, complying with the AASHTO 93 regulations and finally the reference budget was calculated based on the volumes of work, materials and equipment necessary to the correct execution of the project. With the analyzes carried out, a mountainous relief was determined, in addition to the fact that it is a Class IV road, the tests determined that the soil is a silty sand (A-2) and the design CBR for the pavement is 8%, having a The result was a 5 centimeter asphalt layer, a 15 centimeter granular base and a 20 centimeter subbase.
Diseño geométrico y de pavimentos de la vía interparroquial Aláquez – San Marcos – Pilatan tramo 0+000 a 4+810 de la ciudad de Latacunga provincia de Cotopaxi
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2024-07) Chulde Osorio, Bryan Alexander; Pérez Maldonado, Ruth Lorena
The Decentralized Autonomous Government of the Aláquez Parish of the Latacunga canton, in favor of territorial investment, has sought to improve the current conditions of its road network, with the purpose of enhancing the commercial attractiveness of small and medium-sized industries, as well as, the collective well-being of the sector, which will benefit from the positive impacts that an adequate road infrastructure attracts. For the project, multiple processes were carried out in order to obtain bases and resources that converge in the geometric and road pavement design, all of them based on the MTOP 003 and AASHTO regulations, starting with vehicle counting and traffic analysis. existing where the traffic variation was observed during a week, and future traffic was projected considering volumes of fuel consumption for a 20-year design period; This allowed the road to be classified as “Class III Collector”, subsequently the topographic survey of a total of 4.81 km was carried out, with slopes between 5 and 15 percent, in such a way that the relief was considered undulating. In addition, a total of 5 soil samples from 5 pits were tested to obtain their index and mechanical properties, which showed, as a general result, the presence of soil of excellent to good quality. Finally, after carrying out the design and considering the transversal drainage works, designed with rainfall information collected from precipitation and temperature bulletins from 2018 to 2021, the reference budget of the project was estimated, which is equal to $1,505,478.42.
Rediseño geométrico y del pavimento de los tramos “Y” de Guarag-La Playa, La Playa-Capilla Pungo, estadio La Playa, con una longitud de 4.65 km, perteneciente al cantón Pujilí de la provincia de Cotopaxi
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2023-01) Chimborazo Bungacho, Erika Vanesa; Bayas Altamirano, Myriam Marisol
Due to the viability conditions in the sector, the need arises to carry out a geometric and pavement redesign to improve communication and the standard of living of the inhabitants. The topographic survey was carried out by means of an RTK equipment and a Drone through the mountainous terrain, having 3 sections of road called "Y" de Guarag-La Playa with a length of 3+115.44 km, La Playa-Capilla Pungo 1+103.45 km and Estadio La Playa with 0+341.39 km. Through soil studies and according to the classification of the SUCS standard, the type of soil that predominates is MS (silty sands) and according to the AASHTO standard, it is A-4 (silty soils). When designing a low-volume paved road, there is a design period of 20 years, with a TPDA of 569 vehicles in both directions, classifying it as a Class III Collector. The MTOP 2003 specifications were used for the geometric design and drainage works. For the design of pavements, the AASHTO 93 method was increased, obtaining thicknesses of 5 cm for asphalt layer, granular base of 15 cm and granular subbase of 25 cm. The analysis of unit prices was carried out, thus having a referential budget