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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Vagapov R.R. – engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it GUP Institute «BashNIIstroy» The organization address: 450064, Russia, Ufa, Konstituzii st., 3
Title of the articleDetermination of design form of the vaults in cemented soil mass above the karst cavity
Abstract.One of the most efficient karst protective measures is soil cementation of cover mass above the karsting soils. But in practice, the total stabilization of the whole soil mass is often demanded. That’s why, investigations are actual to decrease cementation volumes, which keep the level of buildings failure protection while karst cavities formation in karsting soils in line with existing Codes. The purpose of the work is investigation of the process of vaults formation in cemented soil mass above the karst cavity. For that, results of numerical and model investigations have bee analyzed. Based on comparison of numerical and model experiments, the possibility of use of Coulomb condition of stability in mathematical modeling of the process of soil failure (vaults) above the karst cavity is confirmed. The shear plane while failure vaults formation in cemented soil mass above the cavity is stated to have the elliptical-paraboloid form similar to elliptical cylinder. In this case, to calculate the cemented soil thickness above the karst cavity, the shear plane while failure vault formation can be assumed to have the form of elliptical cylinder.
Keywords.Karsting soils, cement-bound soils, karst cavity, numerical investigations.
For citations:Vagapov R.R. Determination of design form of the vaults in cemented soil mass above the karst cavity // Izvestiya KGASU. 2013. №3(25) P.61-66.

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