Some organizational and technological solutions of geotechnical protection in conditions of dense urban development

During the construction or reconstruction of buildings and structures in conditions of dense urban development, it is necessary to perform geotechnical monitoring of buildings of the surrounding development in order to determine the compliance of forecast and actual precipitation values and their relationship to permissible regulatory values. [1, 2] The accuracy and cyclicity of geodetic measurements should be carried out in accordance with the requirements of SP 22.13330.2011  Foundations of buildings and structures. Updated version of SNiP 2.02.01-83*. The need to perform geotechnical monitoring is also due to the timely detection of unacceptable additional precipitation of surrounding buildings and to prevent the development of defects and deformations caused by these precipitation. Due to the regular cycling of monitoring, it is possible to predict the increase in additional precipitation or their stabilization. In case of an increase in additional precipitation of buildings of the surrounding development to the maximum permissible values and the presence of a forecast of its further increase, it is necessary to carry out measures for their geotechnical protection. In case of stabilization of additional sediments of surrounding buildings, the implementation of geotechnical protection measures is not required, which in turn does not entail additional financial and time costs during construction. The article provides an example of performing geotechnical monitoring at a reconstruction facility in conditions of dense urban development. The results of its execution are given. The analysis of the occurrence of additional sediments of surrounding buildings was carried out. The necessity of carrying out geotechnical protection measures has been determined. The economic efficiency of performing geotechnical monitoring at this facility is given. The results of the study can be useful when performing geotechnical monitoring at other facilities in conditions of dense urban development, as they show that the occurrence of additional precipitation of buildings of surrounding buildings can not always be caused only by construction work. And in case of timely stabilization of additional sediments, additional financial and time costs can be avoided, thanks, among other things, to the results of geotechnical monitoring.

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2. Zharov Ya.V. Uchet organizacionnih aspektov pri planirovanii stroitel`nogo proizvodstva v energetike [Accounting of organizational aspects in the planning of construction production in the energy sector] // Journal of PGS. 2013 No. 5. pp. 69-71. URL: https://cyberleninka.ru/article/n/organizatsionnye-aspekty-proektirovaniya-stroitelstva-i-ekspluatatsii-energoeffektivnyh-zdaniy/viewer (In Russian)