Scientific substantiation of engineering preparation measures due to the influence of construction in the dense building conditions
DOI:
https://doi.org/10.32347/2410-2547.2020.104.229-241Keywords:
new construction, scientific substantiation, stress-strain state, reinforcement structures, engineering preparationAbstract
The method of studying the stress-strain state of reinforcement structures of combined soil massifs has been proposed with the geometric and physical nonlinearity in the formulation of the problem based on the nonlinear theory of elasticity and plasticity of the soil. The study of the stress-deformed state of the computational domain from the standpoint of the mechanics of the deformed solid body had been carried out, using algorithms for solving the problems of the theory of elasticity and plasticity, with the construction of universal computational models of the combined half-space, that allows to determine more reasonably the magnitude of the stress-strain state of complex soil bases in interaction with the reinforcement structures, the surrounding buildings foundations and the whole complex of the surrounding buildings structures. The influence of new construction on the condition of soil bases and foundations of adjacent buildings had been evaluated by determining the change of pressure on the reinforcement structure and determining the stress-strain state change of this structure and the foundation of the existing house. The change in the deformation of the foundation of the existing building, ie the oscillation of the soil foundation and the maximum amplitude of uneven subsidence of the foundations of the existing building have been determined. Each formulation of the problem had to include its own reliability analysis and a specific approach that requires numerical modeling and development of appropriate measures to scientifically substantiate engineering preparation measures in dense building. Further design of protective reinforcement structures for new construction under the conditions of the building reconstruction has carried out considering the impact on the existing buildings and structures and the adjacent soil mass of different stages of construction, begining with the arrangement of protective reinforcement structures, the development of a excavation due to the effect of unloading the foundation, and the sequence of erection of engineering structures.
References
Bazhenov V.A., 2002. The Moment Finite-Element Scheme in Problems of Nonlinear Continuum Mechanics / V.A. Bazhenov, A.S. Sakharov, V.K. Tsykhanovskii // International Applied Mechanics. – Vol.38, Iss.6. – Ps. 658-692.
[https://link.springer.com/article/10.1023/A%3A1020424710876]
Bazhenov V.A., Tsykhanovskii V.K., Kyslookyi V.M., 2000. Metod skinchennykh elementiv u zadachakh neliniynoho deformuvannya tonkykh ta myakykh obolonok. (Finite element method in problems of nonlinear deformation of thin and soft shells). – Kyiv National University of Construction and Architecture. – 386 с. (ukr)
Prusov D.E., 2009. Problemy proektuvannya ohorodzhuyuchykh konstruktsiy hlybokykh kotlovaniv v umovakh shchilnoyi zabudovy (Problems of designing enclosing structures of deep excavations in the dense housing conditions) / D.E. Prusov // Urban and territorial planning. – Kyiv National University of Construction and Architecture. – Vol.37. – Ps.121-130. (ukr)
Prusov D.E., 2012. Numerical Research of the Retaining Constructions During Reconstruction of the Transport Structures / D.E. Prusov // Transport (Lithuania). – Volume 27, Issue 4. – Ps. 357–363. [https://journals.vgtu.lt/index.php/Transport/article/view/4953]
Prusov D.E., 2014. Stress–Strain State of a Combinational Soil Half-Space During Reconstruction / D.E. Prusov // International Applied Mechanics. – Volume 50, Issue 2, – Pp 141–149.
[https://link.springer.com/article/10.1007/s10778-014-0618-x]
Prusov D.E., 2014. The System of Risk Assessment Criteria and Consequences Prediction of Urban Areas Transformation / D.Е. Prusov // Proceedings of the National Aviation University. –– Vol.61, No.4. – Ps. 116–120.
[http://jrnl.nau.edu.ua/index.php/visnik/article/view/7601]
Utility Model Patent, 2011. Sposib urakhuvannya zminy z hlybynoyu kharakterystyk mitsnosti neodnoridnoho hruntovoho pivprostoru (The method for account change in depth of strength characteristics of non-uniform soil semi-space) / Inventors: Tsykhanovskii V.K., Prusov D.E. // Utility Model Patent No.59066, Ukraine, MPK G01N 33/24 (2006.01), Bull. No.9, 2011. (ukr)
Tsykhanovskii V.K., 2004. Metod skinchennykh elementiv u zadachakh doslidzhennya neodnoridnoho pivprostoru z urakhuvannyam heometrychnoyi i fizychnoyi neliniynosti (Finite element method in problems of investigation of inhomogeneous half-space taking into account geometric and physical nonlinearity) / Tsykhanovskii V.K., Prusov D.E. // Strength of Materials and Theory of Structures – Kyiv National University of Construction and Architecture. – Vol.75.– Ps. 87-98. (ukr)
Downloads
Published
Issue
Section
License
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
