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Усиление методом цементации основания ленточного фундамента здания торгового комплекса в г. Челябинске

Усиление методом цементации основания ленточного фундамента здания торгового комплекса в г. Челябинске

Abstract

In this paper the reasons for structural deformations in the operation of the existing building as a result of technological errors at the construction of adjacent underground parking are clarified. Physical and mechanical characteristics of the amended soil to convert its structural properties are analyzed. We determine the possible methods of strengthening to ensure safe operation of the building. Necessary technological and design parameters of injection are calculated. We have designed the project of strengthening brick walls, foundations and soils of the basement in the zone of maximum development of cracks in the load-bearing structures of this object. Cement grouting of the building basement has been made under direct control by the authors of the project and this article as well. Geotechnical monitoring is performed during the works and within the subsequent year of the building maintenance. As a result of the performed works the stabilization of the settlements of the soil basement and displacements of the foundation structures has been achieved.

В данной работе были выяснены причины деформаций конструкций при эксплуатации существующего здания в результате технологических нарушений при возведении примыкающей подземной парковки. Были исследованы физико-механические характеристики измененного грунта для преобразования его строительных свойств. Определены возможные методы усиления, обеспечивающие дальнейшую безопасную эксплуатацию здания. Рассчитаны необходимые технологические и конструктивные параметры инъецирования. Разработан проект усиления кирпичных стен, фундаментов и грунтового основания в зоне максимального развития трещин в несущих конструкциях данного объекта. Выполнена укрепительная цементация грунтового основания здания под непосредственным контролем авторов рабочего проекта и данной статьи. При производстве работ и в течение последующего года эксплуатации здания осуществлен геотехнический мониторинг. В результате выполненных работ была достигнута стабилизация осадок грунтового основания здания и перемещений фундаментных конструкций.

Keywords

ОБСЛЕДОВАНИЕ ЗДАНИЯ, УСИЛЕНИЕ ОСНОВАНИЯ ФУНДАМЕНТА, ИНЪЕКЦИОННОЕ ЗАКРЕПЛЕНИЕ ГРУНТОВ, УКРЕПИТЕЛЬНАЯ ЦЕМЕНТАЦИЯ, ГЕОТЕХНИЧЕСКИЙ МОНИТОРИНГ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold