The use of auger cast-in-place (ACIP) pilings is very common in Florida; however, there is a significant degree of uncertainty in determining the actual capacity of the pilings, especially when the pilings are installed through layers of cohesive soils. Therefore, there is a need to improve upon the existing methods of predicting the behavior of ACIP piles in layered soils. As a result, the primary objective of this study is to determine if a significant difference exists between the accepted methods of pile load test analysis. Provided a significant difference is noted, the secondary objective would be to determine if an improvement could be made to enhance the existing empirical relationships used to predict pile behavior in layered soils. In order to accomplish these objectives, this study presents an evaluation of some of the most commonly used methods for predicting ACIP pile capacity based upon the results of actual field load tests. Data from twenty-five load tests were analyzed using popular methods and statistical analyses were preformed to determine and evaluate the data. These evaluations were utilized to explore correlations between predicted behavior and actual results. Based upon the results of this study, there is no statistically significant difference between the load test analyses methods examined. As a result, no improvement to the existing methods of predicting ACIP pile behavior in layered soils may be recommended at this time, and further research in this subject matter is recommended.

O presente trabalho apresenta uma análise do desempenho de estacas hélice contínua e ômega, com ênfase na influência do processo de execução e aspectos executivos. É feita uma revisão bibliográfica apresentando a evolução executiva das estacas, o processo executivo e aspectos relevantes à correta execução destas estacas, características dos materiais que influenciarão o desempenho, efeitos da execução das estacas no sistema estaca-solo e uma análise da influência da geometria da ponta no desempenho das estacas. Três casos de obras são mostrados. Primeiramente uma obra que, devido a alterações das propriedades do concreto, substituiu-se estacas hélice contínua por ômega, como solução ao problema apresentado. Em seguida, mostra-se a execução de estacas ômega na Estação Vila das Belezas. Por último, o interessante caso de utilização de estacas hélice contínua como elemento de contenção nas obras do projeto integração centro, na Estação Luz, onde a proximidade de prédios antigos era fator limitante na escolha do tipo de fundação. Apresenta-se, ainda, uma análise comparativa do desempenho de estacas hélice contínua e ômega por meio de resultados de provas de carga, e uma análise do desempenho inesperado, da ponta, de uma estaca ômega, por meio de interpretação de prova de carga na estaca e do parâmetro R de Cambefort. São apresentados, também, os métodos de previsão de capacidade de carga de estacas hélice contínua e ômega, de extrapolação da curva carga x recalque e de separação das cargas de atrito e ponta, que foram utilizados nas análises de desempenho das estacas. / This research work presents an analysis of the performance of CFA and omega piles, with emphasis on the influence of execution processes. A review of previous work is presented, showing the construction evolution of these piles, it’s execution process and relevant aspects concerning the correct execution of these piles, as well as material properties effecting on it’s behavior, execution effects on the pile-soil system and an analyses of the influence of the pile’s tip on it’s performance. Three cases of foundation works are shown. First of all, a piled foundation in which CFA piles were changed to omega piles, due to alterations in the concrete properties. After that, an omega pile execution on Vila das Belezas subway station is shown. At last, an interesting case of CFA piles as a retaining wall, on Luz subway station, where proximity old buildings restrained the choice of retaining methods. A comparative analysis of the performance of omega and CFA piles, based on load tests, is also shown, as well as an analysis of the unexpected behavior of an omega pile tip, based on an interpretation of load test and Cambefort’s R parameter. In addition to this, the predict methods of bearing capacity, the methods of extrapolation of the load-settlement curve and the methods of the separation of the shaft friction and the end bearing, which were used in the performance analysis of the piles, are also presented.

O presente trabalho apresenta uma análise do desempenho de estacas hélice contínua e ômega, com ênfase na influência do processo de execução e aspectos executivos. É feita uma revisão bibliográfica apresentando a evolução executiva das estacas, o processo executivo e aspectos relevantes à correta execução destas estacas, características dos materiais que influenciarão o desempenho, efeitos da execução das estacas no sistema estaca-solo e uma análise da influência da geometria da ponta no desempenho das estacas. Três casos de obras são mostrados. Primeiramente uma obra que, devido a alterações das propriedades do concreto, substituiu-se estacas hélice contínua por ômega, como solução ao problema apresentado. Em seguida, mostra-se a execução de estacas ômega na Estação Vila das Belezas. Por último, o interessante caso de utilização de estacas hélice contínua como elemento de contenção nas obras do projeto integração centro, na Estação Luz, onde a proximidade de prédios antigos era fator limitante na escolha do tipo de fundação. Apresenta-se, ainda, uma análise comparativa do desempenho de estacas hélice contínua e ômega por meio de resultados de provas de carga, e uma análise do desempenho inesperado, da ponta, de uma estaca ômega, por meio de interpretação de prova de carga na estaca e do parâmetro R de Cambefort. São apresentados, também, os métodos de previsão de capacidade de carga de estacas hélice contínua e ômega, de extrapolação da curva carga x recalque e de separação das cargas de atrito e ponta, que foram utilizados nas análises de desempenho das estacas. / This research work presents an analysis of the performance of CFA and omega piles, with emphasis on the influence of execution processes. A review of previous work is presented, showing the construction evolution of these piles, it’s execution process and relevant aspects concerning the correct execution of these piles, as well as material properties effecting on it’s behavior, execution effects on the pile-soil system and an analyses of the influence of the pile’s tip on it’s performance. Three cases of foundation works are shown. First of all, a piled foundation in which CFA piles were changed to omega piles, due to alterations in the concrete properties. After that, an omega pile execution on Vila das Belezas subway station is shown. At last, an interesting case of CFA piles as a retaining wall, on Luz subway station, where proximity old buildings restrained the choice of retaining methods. A comparative analysis of the performance of omega and CFA piles, based on load tests, is also shown, as well as an analysis of the unexpected behavior of an omega pile tip, based on an interpretation of load test and Cambefort’s R parameter. In addition to this, the predict methods of bearing capacity, the methods of extrapolation of the load-settlement curve and the methods of the separation of the shaft friction and the end bearing, which were used in the performance analysis of the piles, are also presented.

The thesis solves construction technological project of the Regional Centre of Advanced Technologies and Materials in Olomouc. The thesis contains a engineering report to the resolved issues, block plan and block plan drawing, technological regulation for CFA piles and testing plan for CFA piles. Other parts of the thesis are the schedule, itemized budget for the shell construction, calculation structures according THU, time and financial plan of the whole building, work safety in the implementation of cast-in-place reinforced concrete structures, design of machine formation and solution organization of construction, which includes an engineering report site equipment and site equipment drawing.

This diploma thesis deals with the construction and technological project of the reinforced concrete monolithic hall for Dinel s.r.o., which has its seat in the industrial zone Zlín - Příluky. There are prepared a technical report for the construction project, time and financial plan of the construction of the second stage, a study of the implementation of the main technological stages, a project of the building facility, a design of the main building machines and mechanisms, a schedule of the main building including a plan of the material resources and technological regulations of selected stages together with control and test plans. In addition there is prepared a budget item of the main building, the health and safety plan and a problematics of the antistatic floors.

This thesis discusses the preparation and organization of the extension construction of multi-purpose Pavilion in Pardubice hospital. The thesis contains a summary accompanying technical report, technical regulations for CFA piles and contact insulation system. Those 3 regulations have developed inspection and test plans. Next parts od the work are time schedule and an itemized budget of the pavilion, time and financial plan of the whole building, Occupational safety and health instructions, environmental issues during the construction, design of mechanical set, system of construction site project. There is also noise study made during the implementation of the construction of the pavilion. Finally there is also situation of construction, CFA pilot implementation scheme and contract.

The subject of my diploma thesis is the construction-technological project of apartment house in Dvůr Králové nad Labem. Thesis is focused on the most optimal technological procedures of foundation construction on deep foundations and total external insulation by external thermal insulation composite system. Regulations are supplemented by inspectional and trial plans, appropriate machinery and equipment of assembly site. Included is also work safety, time schedule and budget of substruture. The most interesting thing of my thesis will be model of the noise load on the surrounding objects resulting from the construction of apartment house which will the proposed appropriate measures of noise control.

Thesis I worked on a project basis provided the building permit for an office complex of two identical fourth storey buildings which from the first storey intersects the inner atrium. The buildings are located within the CTZone Brno in the street Masna. The buildings are designed so that the ground floor is a garage for cars and retail space for rent and above-ground floors are reserved for office space lease. Objects are based on a floating pile conducted by the CFA, which builds prefabricated concrete skeleton. The cladding is formed by a combined system of aluminum windows, masonry face and sheet plotted on a system of stainless steel brackets. Roofing of buildings is done running flat roofs, the roofing of the atrium serves as a walkable roof. The garage is designed bearing slab plate fitted topping for added durability. Internal Partition Walls and walls are made of aerated concrete blocks. Thesis deals with construction technological preparations for the construction and contains a technical report, coordinating the situation buildings with wider relationships routes, time and financial plan, study the implementation of the main stages, the project site equipment, design tools, technological regulation, inspection and test plan, itemized budget, comparing two designs rough superstructure and appropriate drawings.

The subject of this master’s thesis is a solution of chosen parts of building construction project. The project solves industrial hall that contains productions and administrative space. This thesis includes technological regulations for substructure, study of performing the main technological stages, design of using machines, checking and testing plans. Other phrases parts are time schedules, budget, calculations, design of site equipment including engineering report and report for performing access road. Starting materials, which were used for this thesis, were engineering report also including working drawings.

The aim of this master's thesis is the construction-technological project of the entire building focusing on major construction building - Multifunctional house, which is based on large-diameter piles. The main part of thesis are budget of object and time schedules of construction. Part of the thesis is organization of construction and design of the site eguipment, technological regulation of selected work, quality control and solving transport relations including oversize cargo. It also deals with the design of mechanical assemblies, health and safety, safety of environment and design of instructions for use of building.