Analysis the results of calculating the monolithic wall in the soil with anchor fastening without distribution beams based on the solution the spatial problem with various topology the element of fencing

Abstract

The article analyzed the results of the calculation of the monolithic trench “wall in soil” (WIS) with fastening attachment anchors without the use of distribution beams based on solving a spatial problem with the different topology of the fence elements. In practice, when solving such problems in a flat arrangement, it is assumed that the WIS is a solid construction in the longitudinal direction, vertical concreting joints are not taken into account, formed between grabs, rupture along horizontal longitudinal reinforcement between adjacent spatial frames, reduction of the rigidity of the WIS structure due to the formation and opening cracks in two directions, as well as inelastic operation of the compressed zone concrete. Analysis of stress-strain state (SSS) of the fence construction structure based on the results of spatial calculation with different topology (flat and volumetric) of finite elements (FE) showed the need to correct the calculation methodology. Based on the results of the calculations, it was found that the values of internal forces in the design obtained using flat FE are significantly overestimated. Based on the numerical method of studies, recommendations on the selection of the design scheme of the monolithic reinforced concrete structure of the pit’s fence are proposed and the calculation methodology is corrected. The subject of the study, the results of which are presented in this article, was the specifics of the operation and calculation of the WIS with anchor attachment without distribution beams and the analysis of the calculation results based on the solution of the spatial problem with different topology (flat and volume) of the FE structure of the fence.

Step fixings of vertical trench walls to prevent ground failure

“…The articles [29][30][31] analyze some peculiarities of modeling and structural calculations of the «wall in the ground» and assessment of its stability in terms of the quality of this diaphragm wall and ensuring further safe construction.…”