Open AccessStrengthening technology and modeling of dams from reinforced soil
Author(s) -
Oleg Glovatsky,
Bekmamat Hamdamov,
Fakhriddin Bekchanov,
Azamat Saparov
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1030/1/012155
Subject(s) - hydraulic structure , civil engineering , environmental science , work (physics) , reinforced concrete , geotechnical engineering , computer science , engineering , structural engineering , mechanical engineering
The aim of the work is to develop a methodology and technique for modeling reinforced soil for further use and application in hydraulic facilities to ensure their stable operation. The objectives of the study are to substantiate the efficiency of using dams of large canals made of reinforced soil at hydraulic structures of pumping stations of the Republic of Uzbekistan, taking into account local conditions, developing recommendations for the rational design of retaining walls and dams from reinforced soil. To achieve this goal, it is necessary to solve the problems of coordinating the operating modes of the pumping station with the introduction of retaining walls and dams from reinforced soil on full-scale structures. The article discusses the implementation of the method of building them in the management of water distribution on irrigation systems in Bukhara and Kashkadarya regions. The theoretical foundations of modeling and design of test stands for the study of volumetric models of dams of large channels made of reinforced soil have been developed. Studies on volumetric models of dams made of reinforced soil were carried out in compliance with the criteria of approximate similarity, which made it possible to obtain new physical ideas about the operation of structures at the stage of destruction. The conducted studies of the models of the built-up part of the dams made it possible to estimate the bearing capacity by the value of the breaking load of the reinforced model to the value of the breaking load of the unreinforced (reference) model. The presence of reinforcement in the soil increases the bearing capacity of the model in comparison with the unreinforced one: even with the volume percentage of reinforcement μ = 0.064%, the hardening coefficient is equal to C hard = 2.60; with μ = 0.032% C hard = 1.70-2.07. With the same percentage of reinforcement μ = 0.032%, an increase in the vertical spacing of the reinforcement leads to a decrease in the bearing capacity by 12-15%. A more even arrangement of reinforcing elements in the ground (close vertical and horizontal spacing between them S h ≈ S v ) ensures the maximum bearing capacity of a reinforced soil structure.