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Beddings and foundations , subterranean structures. Soil mechanics

TECHNOLOGY OF ALIGNMENT OF THE BUILDING OF ZAGORSK PUMPED STORAGE STATION BY COMPENSATION GROUTING METHOD

Vestnik MGSU 4/2018 Volume 13
  • Kharchenko Aleksey Igorevich - ZAO InGeoStroy; Institute of Expert Evaluation and Engineering, Moscow State University of Civil Engineering (National Research University) (MGSU) general manager; Candidate of Technical Sciences, Chief Executive, ZAO InGeoStroy; Institute of Expert Evaluation and Engineering, Moscow State University of Civil Engineering (National Research University) (MGSU), 7 Kalitneykovskaya, Moscow, 109147, Russian Federatio; 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kharchenko Igor’ Yakovlevich - Research and Development Institute of Expert Evaluation and Engineering, Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Head of Division, Research and Development Institute of Expert Evaluation and Engineering, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Panchenko Aleksandr Ivanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences. Professor, Department of Binders and Concretes Technology, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Gazdanov David Vladimirovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Master Student, Department of Reinforced Concrete and Stone Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 490-498

Subject: elimination of excessive non-uniform deformations of the building of Zagorsk pumped storage station unit (pumped-storage hydroelectric power station) under construction by using the method of compensation grouting. Research objectives: development of a methodology for assigning optimal values of the main technological parameters, such as pressure, intensity of injected mixture, consumption of the mixture per unit volume of soil, based on experimental data of tests of various types of soil on the model; justification of the method for calculation of pressure for fracturing the casing layer of the tube-a-manchette before injection. Materials and methods: the following materials were used: high permeability grouts “KN-1” with adjustable structural strength for primary impregnation of the soil massif; injection material “KN-2” with increased viscosity and a slow strength gain to create a stressed state in the soil and ensure leveling of the building; casing grout “Solidur” for fixing the tube-a-manchette in the borehole. Kinetics of impregnation and the nature of distribution of the material “KN-1” were studied on a unidirectional model. Results: on the laboratory unidirectional model, the main technological parameters were worked out for alignment of the building of Zagorsk pumped storage station unit using the technology of compensation grouting at the experimental site located in immediate vicinity of the main facility. Nomograms for assignment of optimal technological parameters of the compensation grouting process were developed. Conclusions: tested mineral-based injection systems fully comply with the technological requirements for production of works on compensation grouting. The results of experimental and theoretical studies allow us to reasonably assign optimal values of the main parameters of technological regulations for all stages of production of works on compensation grouting.

DOI: 10.22227/1997-0935.2018.4.490-498

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