Industrial and Civil Engineering magazine's home page

BASES AND FOUNDATIONS, UNDERGROUND STRUCTURES
Modern Control Methods of Preparation of Earth Foundation under Complex Engineering-Geological Conditions in the City of Kaliningrad
UDC 624.138
Igor V. AVERIN, e-mail: i.averin@mail.ru
Engineering Geology LLC, ul. Yartsevskaya, 16, Moscow 121351, Russian Federation
Dmitry Yu. CHUNYUK, e-mail: ChunyukDU@mgsu.ru
Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
Abstract. The complex of control methods of the preparation of an earth foundation on soft water-saturated clay soils with the use of modern geotechnical equipment is presented. The study was conducted at one of the sites of the Oktyabrskiy island of the city of Kaliningrad after the completion of the project period of consolidation. As a technology that accelerates the compaction of soft water-saturated clay soils, the project proposed the use of geo-synthetic vertical drains with a sand counterweight of about six meters thick. Both consolidated clay soils, and filled sandy soils used as counterweight and the future foundation of structures were subjects to control. Comparative analysis of strength and deformation characteristics of soft clay soils before and after compaction was held. The basic characteristics of the sand fill formed by the method of dumping without compaction were determined six months before carrying out the research. Estimation of current parameters of the compaction in the thickness of the soft water-saturated clay soil at various depths with determining their degree of consolidation was carried out. The paper considers the problem of decompression of the lower part of the sand fill during the project period of consolidation, which may adversely affect the bearing capacity both of future slightly deepened structures and underground utilities.
Key words: soft water-saturated clay soils, complex engineering-geological conditions, monitoring, geotechnical equipment, consolidation, degree of consolidation, geo-synthetic band drains, artificial subgrade, filled sand soils.
REFERENCES
1. Abelev M. Yu. Avarii fundamentov promyshlennykh i grazhdanskikh sooruzheniy [Accidents of foundations of industrial and civil buildings]. Moscow, FAOU DPO GASIS Publ., 2011. 66 p. (In Russian).
2. Bakhronov R. R., Abelev K. M., Nekrylov V. B. Research results of building peculiarities in territories with water sated clay grounds. Promyshlennoe i grazhdanskoe stroitel'stvo, 2010, no. 8, pp. 57-59. (In Russian).
3. Abelev M. Yu. Stroitel'stvo promyshlennykh i grazhdanskikh sooruzheniy na slabykh vodonasyshchennykh gruntakh [Construction of industrial and civil structures on weak water-saturated soils]. Moscow, Stroyizdat Publ., 1983. 248 p. (In Russian).
4. Ob inzhenerno-geologicheskikh izyskaniyakh "Stadion Chempionata mira FIFA v g. Kaliningrade" [Technical Report on engineering&geological researches of "The stadium for the FIFA world cup in Kaliningrad"], tekhnicheskiy otchet. OOO "GT MORGEO", 2013 g. (In Russian).
5. Abelev M. Yu., Koz'modem'yanskiy V. G., Bakhronov R. R. Arrangement of compacted sand bases of multistory buildings constructed on soft soils. Promyshlennoe i grazhdanskoe stroitel'stvo, 2014, no. 10, pp. 69-73. (In Russian).
6. Averin I. V., Abelev M. Yu., Korableva U. A. Experimental research of efficiency of methods of consolidation of compaction of soft clay soils of Imereti lowlands. Osnovaniya, fundamenty i mekhanika gruntov, 2015, no. 6, pp. 22-26. (In Russian).
7. Averin I. V., Kozlovskaya A. V. Monitoring of the processes of consolidation of clayey soils at the base of plants. Trudy yubileynoy konf., posvyashchennoy 100-letiyu so dnya rozhdeniya professora G. S. Zolotareva (1914 - 2006). Moscow, MGU Publ., 2014. Pp. 160-164. (In Russian).
For citation: Averin I. V., Chunyuk D. Yu. Modern Control Methods of Preparation of Earth Foundation under Complex Engineering-Geological Conditions in the City of Kaliningrad . Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2017, no. 10, pp. 67-71. (In Russian).

BACK