The Arrangement of a Modified Soil Layer with Specified Physical and Mechanical Characteristics at the Construction of Multi-Storey Buildings

Time and current circumstances dictate the need to move from horizontal to vertical zoning of urban space, which is able to ensure the formation of a comfortable residential and industrial environment, based on the deep-spatial organization of the entire system of objects. The practice of modern construction has shown that the use of traditional foundation structures when constructing buildings on weak water-saturated soils is often a technically complex and economically inefficient solution. In this case, the construction of artificially improved bases is required. The article deals with the issues of the construction of an artificial base with the specified physical and mechanical characteristics: determination and experimental confirmation of the technology of forming a rigid reinforcing element in the ground with the projected geometric and physico-mechanical characteristics; determination of the effective characteristics of the soil mass reinforced with rigid vertical elements; quantitative determination of the VAT of the interaction of reinforced geomass with the surrounding soil during new construction and at its installation in the base of an existing building.

S.S. ZUEV¹, Deputy General Director;
E.V. ZAYTSEVA², Candidate of Sciences (Engineering), Head of the Design Department;
O.A. MAKOVETSKY³, Candidate of Sciences (Engineering)

¹ AO “New Ground” (35, Kronshtadskaya Strrt, Perm, 614081, Russian Federation)
² ZAO “GORPROJECT” (5, bldg. 5A, Nizhny Susalny Lane, Moscow, 105064, Russian Federation)
³ Perm National Research Polytechnic University (29, Komsomolsky Prospect, Perm, 614000, Russian Federation)

1. Travush V.I., Shulyatev S.O. Adjusted pile foundation construction for skyscrapers. VII international symposium “Actual problems of computational simulation in civil engineering”. 2018, pp. 012008.
2. Zertsalov M.G., Konyukhov D.S., Merkin V.E. Ispol’zovanie podzemnogo prostranstva [Use of underground space]. Moscow: ASV, 2015. 416 p.
3. Konyukhov D.S. Basic principles of complex development of underground space during renovation of residential buildings in Moscow. Metro i tonneli. 2019. No. 2, pp. 38–40. (In Russian).
4. Merkin V., Konyukhov D. Development of Moscow underground space plans, results, perspectives. Proceedings Engineering. 2016. Vol. 165, pp. 663–672.
5. Abelev M.Yu. Stroitel’stvo promyshlennykh i grazhdanskikh sooruzheniĭ na slabykh vodonasyshchennykh gruntakh [Construction of industrial and civil structures on weak water-saturated soils]. Moscow: Stroyizdat, 1983. 248 p.
6. Abelev M.Yu., Abelev K.M. Geotechnical studies of construction sites composed of weak water-saturated clay soils. Geotechnika. 2010. No. 6, pp. 30–33. (In Russian).
7. Broyd I. I. Struinaya geotekhnologiya [Jet geotechnology]. Moscow: DIA, 2004. 448 p.
8. Zege S.O., Broyd I.I. Concepts of physical bases of jet fixing of soils. Osnovaniya, fundamenty i mekhanika gruntov. 2004. No. 2, pp. 17–20. (In Russian).
9. Makovetskiy O., Zuev S. Practice device artificial improvement basis of soil technologies jet grouting. Procedia Engineering. 2016. Vol. 165, pp. 504–509. (In Russian).
10. IREX Recommandations pour la conception, le dimensionnement, l’exécution et le contrôle de l’amélioration des sols de fondation par inclusions rigides. ASIRI 384, Presses des Ponts, 2012.
11. Dzhantemirov Kh.A., Dolev A.A. Experience of strengthening the foundation of a structure using jet geotechnology. Osnovaniya, fundamenty i mekhanika gruntov. 2006. No. 1, pp. 16–19. (In Russian).
12. Konovalov P.A., Zekhniev F.F., Bezvolev S.G. Calculation of the effectiveness of strengthening weak foundations by loading, drainage and reinforcement. Osnovaniya, fundamenty i mekhanika gruntov. 2003. No. 1, pp. 2–8. (In Russian).
13. Bondarenko V.M., Fedorov V.S. Models for solving technical problems. Prospects for the development of the construction complex. Materials of the VIII International Scientific and Practical Conference. Astrakhan. 2014, pp. 262–267. (In Russian).
14. Karech T. Analysis by homogenization method of structures in reinforced soil and behavior interfaces of soil reinforcement. Journal of Civil Engineering and Construction Technology. 2012. Vol. 3 (1), pp. 17–24.
15. Ilyichev V.A., Gotman V.N., Nazarov V.P. Calculation justification of the use of JET-grouting to reduce additional precipitation of an existing building from the construction of an underground multifunctional complex. Vestnik grazhdanskikh inzhenerov. 2009, pp. 95–97.
16. Bull John W. Linear and nonlinear numerical analysis of foundations. New York, 2009. 465 p.
17. Kolybin I.V., Fursov A.A. Calculation of underground structures taking into account the technology of their construction. Underground construction in Russia at the turn of the XXI century. Proceedings of the conference. Moscow. 2000, pp. 114–153.
18. Bobyr G.A. Optimization of the parameters of reinforced massifs in the bases composed of structurally unstable soils. Cand. Diss. (Engineering). Moscow. 2002. 145 p.
19. Maksimova I.N., Makridin N.I., Erofeeva V.T., Skachkov Yu.P. Struktura i konstruktsionnaya prochnost’ tsementnykh kompozitov [Structure and structural strength of cement composites]. Moscow: ASV, 2017. 400 p.
20. Gotman A. L., Khurmatullin M.N. Investigation of the work of piles made by the method of jet cementation in clay soils. Osnovaniya, fundamenty i mekhanika gruntov. 2012. No. 4, pp. 16–19.