Retrieved from Iss. 115, P. 2, 2024
Pages 121 -136
Received 15.01.2024
Revised 27.05.2024
Accepted 30.06.2024
Retrieved from Iss. 115, P. 2, 2024
Pages 121 -136
Abstract
The article is devoted to conducting research aimed at increasing the load-bearing capacity of foundations during the construction of structures made of metal corrugated structures. The purpose of the work is to increase the load-bearing capacity of the foundations during the construction of structures made of metal corrugated structures on weak soils. This will make it possible to ensure the reliable and long-lasting operation of transport structures made of prefabricated metal corrugated structures during the construction and operation of structures. The object of research is the foundation of a transport structure made of metal corrugated structures in the conditions of weak soils. A study of the stress-deformation state of the foundation of a transport structure made of metal corrugated structures under the conditions of weak soils was carried out, taking into account the parameters of the soils obtained in the process of engineering-geological sectioning. It is proposed to strengthen the base of the structure on weak soils by the method of installing reinforced concrete piles. The results of calculations of the stress-strain state of the base without reinforcement showed that the maximum value of the total displacements is about 5.12 cm, which is unacceptable in terms of deformations for a concrete coating. At the same time, the value of vertical stresses is 803.5 kN/m2. Therefore, to compensate for the initial deformations, it is recommended to apply a load on the entire area of the site with a load of 10 kN/m. Due to the loading, we maximally remove stress and deformation before arranging the structures of the building. When using piles to strengthen the base on weak soils, it was found that the maximum value of the total displacements at the stage of loading was 2.36 cm, which is permissible in terms of deformations for a concrete coating. It was established that the main risks in the construction of transport facilities on weak soils are deformations of the soil base. They can appear during the transmission of forces from the transport structure and variable loads, as well as from changes in the physical and mechanical properties of the foundation soils during the construction and operation of the structure
Keywords:
transport structure, metal corrugated structures, base, stress, deformations