A new method for calculating the load-bearing capacity of construction piles has been developed in Perm.

Pile foundations are widely used in industrial, civil, and transportation construction. They serve as primary load-bearing elements for hangars, warehouses, residential buildings, commercial structures, pipelines, and barriers along highways. When designing these types of foundations, a high margin of strength and resistance to external influences is taken into account, considering loads and changes in operating conditions without the risk of failure or deformation. Adhering to these factors can lead to reduced economic efficiency in the use of piles, increasing costs and construction timelines. Researchers at Perm Polytechnic are proposing a new approach to calculating their load-bearing capacity, which will allow for a better understanding of the actual interaction with the soil foundation, reduce expenses, and facilitate high-quality foundation design for structures.

2024-11-21 10:00:11https://naked-science.ru/article/column/nesushhej-sposobnosti-str

The article has been published in the collection "Modern Theoretical and Practical Issues of Geotechnics." The research was conducted within the framework of the strategic academic leadership program "Priority 2030."

The primary purpose of piles is to transfer loads from artificial structures to more stable soil layers. However, an incorrect choice of the calculation scheme for the interaction of these structures with the surrounding soil can sometimes lead to significant design errors. This is particularly relevant when significant horizontal loads act on pile foundations. Experimental studies and monitoring of already constructed buildings and structures indicate that the discrepancy between calculated and actual values of such loads on pile foundations can range from 10 to 20 percent. This results in inflated material and economic costs, as well as extended construction timelines.

Based on the conducted research, scientists from Perm Polytechnic have proposed a formula for determining the critical horizontal load on piles of various profiles. This formula is suitable for calculating pile foundations of construction projects located in dusty-clayey soils, which constitute a significant part of our country.

"We introduced the concept of effective pile diameter, which takes into account the compacted layer of surrounding soil that is bonded to it. After making the proposed assumptions and approaches, we were able to adjust the formula, thereby speeding up the calculation process. The analysis comparing our solutions with known results from other researchers showed satisfactory convergence of results within 5-10 percent. This serves as confirmation of the effectiveness of the proposed calculation method for predicting the bearing capacity of piles under horizontal loads," comments Andrey Ponomarev, professor of the Department of Construction Production and Geotechnics at PNIPU, Doctor of Technical Sciences.

The research conducted by scientists at Perm Polytechnic will facilitate the process of constructing pile foundations and reduce the risks of incorrect design, thereby mitigating potential global consequences for the entire structure.