Analysis of causes of deformations in historic buildings on weak clay soils

Shashkin, A. G.; Shashkin, K. G.; Дашко, Р Э

doi:10.1201/9780429058882-64

Cited by 5 publications

(3 citation statements)

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“…A 1.2-metre-thick slab was then installed to provide the seal needed to start construction in the dry. The sheet piles, which started experiencing pressure as the water drained, were pressed against the concrete, sealing off water from below that was trying to seep through the interface between concrete and steel (17,(34)(35)(36).…”

Section: Data Collection and Methodologymentioning

confidence: 99%

Construction of Underground and Multi-story Car Parks in High-density Urban Areas

Trushko,

Demenkov

2024

IJE

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In modern megacities, every day, people are faced with the problem of finding a place to park the cars, this problem is especially acute in the city center. The number of existing parking spaces is sorely lacking in view of the rapid growth in the number of cars. Therefore, the optimal solution for the construction and reconstruction of buildings in large metropolitan areas is the rational use of underground space, namely the construction of underground parking lots. The present work is an analysis on construction of underground and multi-story car parks in large cities through a case on the city of St. Petersburg, Russia. It considers optimal solutions for construction of underground car parks in complex geotechnical conditions using Plaxis 2D program. The purpose of the study is to develop technological solutions for the construction of underground parking lots in complex engineering and geological conditions of large megacities with the use of sheet pile fencing. Input data were collected from available engineering and geological surveys datasets obtained from construction sites. The methodology used was 2D design diagrams and a nonlinear Mohr-Coulomb model was used, which made it possible to assess as accurately as possible the geotechnical conditions in the construction area by analyzing horizontal and vertical displacements of the sheet pile wall, soil settlement at the bottom of the excavation, and the maximum settlement of a building located near the excavation. As a result, professional recommendations were developed for construction of underground and multi-storey car parks in complex geotechnical conditions: it is necessary to carry out complex geotechnical support of construction; when constructing a pit in difficult engineering and geological conditions, construct a pit with metal spacer systems (open pit); when constructing a pit near existing buildings and structures, it is very important to take into account the relative position of the base of the foundation and the pit being constructed; accurately and reliably perform calculations in the design and implementation of the construction of underground parking as part of new construction or reconstruction of previously constructed buildings in difficult engineering and geological conditions. The authors of the article have developed new technological solutions that are of great scientific and practical significance to improve the reliability and safety of preserved architectural monuments during the construction of underground parking lots, as well as the safety of neighboring buildings that may be affected by construction or reconstruction.

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Section: Data Collection and Methodologymentioning

confidence: 99%

Construction of Underground and Multi-story Car Parks in High-density Urban Areas

Trushko,

Demenkov

2024

IJE

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“…Currently, the contamination of metropolitan areas causes immense damage to the underground space, which first of all affects the color, the color of soils changes from brownish to grayish-greenish, the composition, state and physic-mechanical properties of soils and sandy-clayey soils, resulting in a decrease in their strength and an increase in compressibility [15,20]. In addition, the unfavorable geo-ecological situation with the underground space of the metropolitan area affects the composition of groundwater, resulting in an increase in the amount of contaminating compounds (NH 4 + , petroleum hydrocarbons, chlorides, sulfates, hydrogen sulfide), an increase in mineralization, etc., their corrosive effect on structural materials increases as well; the active growth of the underground microbiota of aerobic and anaerobic groups is also intensified.…”

Section: Methodsmentioning

confidence: 99%

Study of the Geo-Ecological State of Groundwater of Metropolitan Areas under the Conditions of Intensive Contamination Thereof

Lebedeva¹,

Kotiukov²,

Ланге³

2020

J. Ecol. Eng.

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The paper presents the analysis of the geo-ecological state of groundwater within an urban territory on the example of Saint Petersburg. The paper considers two key sites, characterized by different levels of contamination of the underground environment (Primorsky and Krasnogvardeisky districts of Saint Petersburg) and provides an assessment of the main natural and man-made sources of the groundwater contamination within the territory of the selected districts. The composition of groundwater was studied in the zones with different pattern of contamination (cemeteries, liquidated landfills, industrial areas, etc.). The negative impact of the man-made sources of contamination on the state of groundwater was determined. The recommendations for arranging hydrogeological groundwater monitoring in metropolitan areas were developed.

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“…A large number of widely known works study and assess ultimate settlements of buildings, including those made of brickwork without reinforcement [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Ulitsky & Shashkin [15] proposed criteria of <ultimate additional settlements of buildings= with various structural layouts, and categories of technical condition to be used to solve safety tasks during reconstruction.…”

Section: Literature Reviewmentioning

confidence: 99%

Ultimate permissible additional hogging of a brick wall during the reconstruction of a historical building

Yevseyev¹,

Shashkin²,

Vasenin³

2022

E3S Web Conf.

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The paper analyzes the possible development of an approach limiting additional deformations of the base of a building during reconstruction. We consider the ultimate permissible value of additional relative hogging in a brickwork wall without reinforcement (f/L)ad,u, which is important for the solution of tasks on the reconstruction of historical buildings. The ultimate values of tensile deformations in a wall can serve as a safety criterion for uneven building settlements. The use of this criterion makes it possible to set more precise values (f/L)ad,u for a brick wall as compared with the values used in Construction Regulations SP 22.13330.

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Analysis of causes of deformations in historic buildings on weak clay soils

Cited by 5 publications

References 0 publications

Construction of Underground and Multi-story Car Parks in High-density Urban Areas

Construction of Underground and Multi-story Car Parks in High-density Urban Areas

Study of the Geo-Ecological State of Groundwater of Metropolitan Areas under the Conditions of Intensive Contamination Thereof

Ultimate permissible additional hogging of a brick wall during the reconstruction of a historical building

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