This document provides information about experience and results of geotechnical modelling of the influence of reconstruction of the building of Perm Opera Theater which includes large extension of existing building with extensive underground part. These work is complicated by different problems like close location to existing buildings with historical value, need for using of underground space during the reconstruction, presence of the soft soils at the base of the existing building and high water table. Paper presents information about engineering solutions which enabled the successful fit into the strict requirements for additional settlements of historic buildings. Also paper presents conclusions which are made on basis of experience of this numerical modeling.
Sheet piles are often used for fencing deep excavations. This is due, among other things, to the fact that when they are pressed, there is no negative impact on the surrounding buildings. In the course of the study, a technical and economic comparison of the domestic sheet pile L4 and its foreign analogue VL603K was carried out. The relevance of the study is confirmed by the fact that during the construction of underground parts of buildings and structures, great attention is paid to engineering measures to prevent the ingress of groundwater into the pits, as well as to strengthen the walls of the excavations from the possibility of collapse in unstable and water-bearing soils. It is also taken into account that the choice of the foundation pit construction depends on its depth, the level of groundwater and the structural scheme of the underground part of the structure, it is also necessary to carry out a static calculation to determine the thickness of the fence and its immersion depth. The analysis of sheet piles also revealed their disadvantages and advantages.
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