Overall stabilization of underground workings in limestone-shells
DOI:
https://doi.org/10.26906/znp.2018.51.1296Keywords:
limestone-shell, underground working (catacomb), plugging, injection, soil-cement, bearing capacityAbstract
The characteristic properties of limestone-shell used as the base of foundation are described. Using the example of multi-storey residential building design, comprehensive solution has been proposed for plugging workings in an array of limestone-shell for the subsequent construction of slab-pile foundation, which includes engineering and geological surveys, geotechnical design, the choice of mortars and their compositions, as well as continuous monitoring plugging conditions.
It is stated that two types of cement-sand mortar are used for plugging workings: the first is with the addition of superplasticizers, which provide high solution mobility, low water loss and non-shrinkage after hardening; the second is without adding superplasticizers with fluidity high degree. The results of laboratory studies to select the composition of soil-cement are given.
References
. Fleming, K., Weltman, A., Randolph, M. & Elson, K. (2008). Piling Engineering. London and New York: Taylor and Francis.
. Katzenbach, R., Bachmann, М. & Gutberlet, C. (2007). Soil-structure interaction of deep foundations and the ULS design philosophy. Geotechnical Engineering in Urban Envi-ronments: proc of the 14th European Conf. on Soil Mechanics and Geotechnical Engineering (Madrid, 2007). Millpress Science Publishers Rotterdam.
. Готман, Н.З. & Каюмов, М.З. (2011). К вопросу о ра-счете плитных фундаментов подземных сооружений на закарстованных территориях. Фундаменты глубокого заложения и проблемы освоения подземного пространс-тва: труды междунар. конф. Пермь, ПНИПУ.
. Bauduin, C., Chitas, P., Raucroix, X. & Goffinet M. (2017). Design of a piled raft foundation for a building at an alpine valley in Switzerland: Soil-structure interaction anal-ysis and comparison with pile test results. Proc. of the 19th Intern Conf. on Soil Mechanics and Geotechnical Engineer-ing. Seoul, Korea.
. Zotsenko, M.L., Vynnykov, Yu.L., Kharchenko, М.О., Nalyvaiko, L.G., Mitinskiy, V.M. & Aniskin. A. (2017). Foundations of the high rise building in the area of under-ground mining. Academic Journal. Series: Industrial Ma-chine Building, Civil Engineering, 249). 252-260.
. Митинский, В.М. (2016). Цементация зон разуплотне¬ния грунтов с использованием манжетных колонн. Будівельні конструкції. Механіка ґрунтів, геотехніка та фундаментобудування, 83-2, 657-663.
. ТУ УВ.2.7-26.6-02071033-001. (2007). Технологи-ческая инструкция по производству закладочных работ при креплении (ликвидации) подземных горных выработок (катакомб) в г. Одессе. Одесса.
. ТУ УВ.2.7-26.6-02071033-001. (2007). Бетон легкий (твердеющая закладка) на щебне известняка-ракушечника для крепления подземных горных выработок. Одесса.
