Gas-Dynamic Approach to the Calculation of an Underground Structure for the Impact of an Air Shock Wave

Number of journal: 12-2022
Autors:

Mkrtychev O.V.,
Savenkov A.Yu.

DOI: https://doi.org/10.31659/0044-4472-2022-12-8-14
УДК: 69.035.4

 

AbstractAbout AuthorsReferences
The calculation of buried underground structures designed to protect the population from natural and man-made emergencies must be performed for the impact of a compression wave in the ground induced by an air shock wave. The normative method of calculating underground structures for the impact of shock waves is an equivalent static method based on the use of the dynamicity coefficient. This approach has a number of significant disadvantages due to the fact that it does not take into account the inertial parameters of the impact and is used for simple forms of structures. Despite the fact that this method makes it possible to set the load in the form of pressure graphs over time, it requires clarification, since the process of interaction of waves with an underground structure is complex and a more rigorous formulation is needed to obtain a more adequate result, based on taking into account the features of the interaction of a shock wave with an underground structure. One of the more rigorous approaches is the use of the gas-dynamic method based on the description of the explosion process in air and in the ground using the Euler approach. The problem of the interaction of an air shock wave with a free-standing buried underground structure in a nonlinear dynamic formulation is solved. The results of the calculations show that the developed method, based on the use of the gas-dynamic approach, makes it possible to perform calculations of underground structures for the impact of shock waves in a more rigorous setting, taking into account the use of mathematical soil models that allow the most accurate reproduction of the dynamic behavior of dense and water-saturated soils. The results of calculations show that the developed technique based on the use of the gas-dynamic approach makes it possible to performing calculations of underground structures for the impact of shock waves in a more rigorous formulation, taking into account the use of mathematical models of soils that allow the most accurate reproduction of the dynamic behavior of dense and water-saturated soils.
O.V. MKRTYCHEV, Doctor of Sciences (Engineering),
A.Yu. SAVENKOV, Postgraduate Student (This email address is being protected from spambots. You need JavaScript enabled to view it.)

National Research Moscow State University of Civil Engineering (26, Yaroslavskoye Highway, Moscow, 129337, Russian Federation)

1. Andreev S.G., Babkin A.V., Baum F.A., Imhovik N.A. et al. Fizika vzryva [Physics of a Blas]. Vol. 2. Moscow: Fizmatlit. 2004. 832 p.
2. Rastorguev B.S., Plotnikov A.I., Khusnutdinov D.Z. Proektirovanie zdaniy i sooruzheniy pri avariynykh vzryvnykh vozdeystviyakh [Design of buildings and structures exposed to emergency blast effects]. Moscow: ASV. 2007. 152 p.
3. Korenev B.G., Rabinovich I.M. Dinamicheskii raschet sooruzhenii na spetsial’nye vozdeistviya [Dynamic calculation of equipment for special effects]. Mosсow: Stroyizdat. 1981. 155 p.
4. Popov N.N., Rastorguyev B.S. Dinamicheskii raschet zhelezobetonnykh konstruktsii [Dynamic analysis of reinforced concrete structures]. Mosсow: Stroyizdat. 1974. 220 p.
5. Kotlyarevskiy V.A., Ganushkin V.I., Kostin A.A., Kostin A.I., Larionov V.I. Ubezhishcha grazhdanskoi oborony. Konstruktsii i raschet [Civil defense shelters. Designs and calculation]. Mosсow: Stroyizdat. 1989. 606 p.
6. Kelas’yev N.G., Avdeyev K.V., Levin D.I. O raschete proizvodstvennykh zdaniy na avariynyye vozdeystviya ot vneshnego vzryva. Promyshlennoe i grazhdanskoe stroitel’stvo. 2022. No. 3, pp. 4–7. (In Russian). DOI: 10.33622/0869-7019.2022.03.04-07
7. Birbraer A.N., Roleder A.Yu. Ekstremal’nye vozdeistviya na sooruzheniya [Extreme impacts on structures]. Saint Petersburg: Polytechpress. 2009. 594 p.
8. Chernukha N.A. Structural analysis of buildings at explosive actions in SCAD. Inzhenerno-stroitel’nyi zhurnal. 2014. No. 1, pp. 12–22. (In Russian). DOI: 10.5862/MCE.45.3
9. Kotlyarevsky V. Prochnost’ i zashchitnye svoistva spetsial’nykh sooruzhenii. Metody rascheta i programmnye sredstva [Durability and protective properties special constructions. Calculation methods and software tools]. Magnitogorsk: VELD. 2014. 88 p.
10. Savenkov A.Y., Mkrtychev O.V. Nonlinear calculation of reinforced concrete structures to the impact of the air shock wave. Vestnik MGSU. 2019. Vol 14. No. 1, pp. 33–45. (In Russian). http://dx.doi.org/10.22227/1997- 0935.2019.1.33–45
11. Bathe K., Wilson Е. Chislennye metody analiza i metod konechnykh elementov [Numerical methods in finite element analysis]. Moscow: Stroyizdat. 1982. 447 p.
12. Mkrtychev O.V., Novozhilov Yu.V., Savenkov A.Yu. The impact of heavy object on an underground structure when falling onto the ground surface. Stroitel’naya mekhanika inzhenernykh konstruktsii i sooruzhenii. 2021. Vol. 17. No. 4, pp. 425–438. (In Russian). http://dx.doi.org/10.22363/1815-5235-2021-17-4-425-438
13. Mkrtychev O.V., Dorozhinskiy V.B., Lazarev O.V. The calculation of reinforced concrete buildings constructions on the explosive loads in the nonlinear dynamic formulation. Vestnik MGSU. 2011. No. 4, pp. 243–247. (In Russian).
14. Pavlov A.S. Numerical method of calculation of blast loads pressure to structures with complex geometry shapes. Academia. Architecture and Construction. 2017. No. 3, pp. 108–112. (In Russian).
15. Valger S.A. Creation of computing technologies for calculating wind and shock-wave effects on structures. Cand. Diss. (Physical and mathematical sciences). Novosibirsk. 2015. 220 p. (In Russian).
16. Schwer L., Teng H., Souli M. LS-DYNA air blast techniques: comparisons with experiments for close-in charges. 10th European LS-DYNA Conference. Würzburg. Germany. 2015.
17. Bento Rebelo H., Cismașiu C. A comparison between three air blast simulation techniques in LS-DYNA. 11th European LS-DYNA Conference. 2017.
18. Andrade F. Feucht M. A Comparison of damage and failure models for the failure prediction of dual-phase steels. 11th European LS-DYNA Conference. Salzburg. Austria. 2017.
19. Zahra S. Tabatabaei, Jeffery S. Volz. A Comparison between three different blast methods in LSDYNA®: LBE, MM-ALE, coupling of LBE and MMALE. 12th International LS-DYNA® Users Conference. 2012. 10 p. URL: https://www.dynalook.com/12th-international-ls-dyna-conference/blast-impact20-d.pdf
20. Mkrtychev O., Savenkov A. Modeling of blast effects on underground structure. International Journal for Computational Civil and Structural Engineering. 2019. Vol. 15. Iss. 4, pp. 111–122.

For citation: Mkrtychev O.V., Savenkov A.Yu. Gas-dynamic approach to the calculation of an underground structure for the impact of an air shock wave. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2022. No. 12, pp. 8–14. (In Russian). DOI: https://doi.org/10.31659/0044-4472-2022-12-8-14


Print   Email