Удосконалення методики визначення несучої здатності буроін'єкційних паль

Abstract

In the master's qualification work on the topic "Improving the method of determining the bearing capacity of drilling piles", the results of static tests of drill piles made according to the traditional technology, and injection piles of large diameters are analyzed. The comparative calculations of the bearing capacity of piles according to the method of current norms were made. It is revealed that the bearing capacity of injection piles of large diameters has a larger safety coefficient than the bearing capacity of traditional drill piles. The mathematical modeling of the work under the loading of drilling and injection piles in the software complex "Plaxis 3D Faundation" was performed. The comparative analysis allowed to recommend the same coefficients for the working conditions of the lateral surface as for the injection piles of small diameters (γсf = 0.9 for sands and γсf = 0.8 for clay soils) for large diameter injection piles. The use of the refined calculation methodology will allow saving materials of piles up to 30% when designing. In the technical part of the work designed documentation for a dwelling house with built-in premises on the Sapnery-Slobodastreet, 93 in the Holosiivskyi district of Kyiv has been developed. The building is one-section and 25 storeys high. The questions of architectural and planning decisions are considered, the design of foundations was carried out, the project of the organization of construction and the section of labor protection was developed.