Safety of building constructed on hillside slope

The paper focuses on the pile foundation and footing of the building constructed on a hillside slope and consisting of four three-dimensional blocks. The building is arranged such that to protect the first block constructed on the footslope from the negative technogenic influence of the latter via the embedment of three supporting blocks into the hillside slope. The first three-dimensional block is a three-storey brick building, while the other three are the spatial supporting structures made of insitu reinforced concrete. All the blocks locate at different position levels. The resulting embedded part of the structure matches the class KS-3 construction site safety. It is thus necessary to assess the structural safety of the building constructed in difficult engineering and geological conditions. The MicroFe software is used for finite element dimensional calculations of the pile foundation and footing strength, stability and oscillation after studying the engineering-geological surveys, the analysis of the soil formation, composition and physicalmechanical properties, the piling field. Also, the theoretical model is proposed for the footingfoundation–building system. The obtained results allow assessing the stress-strain state of the pile foundation and footing with the lateral support to the hillside slope of soil.

building, pile foundation, footing, hillside slope, soil cutting, calculation model, stressed-strained state

1. Shashkin V.A. Effekty vzaimodeistviya osnovanii i sooruzhenii [Interaction between foundations and structures]. Razvitie gorodov i geotekhnicheskoe stroitel'stvo. 2012. No. 14. Pp. 141–167. (rus)

2. Shashkin A.G., Shashkin K.G. Vzaimodeistvie zdaniya i osnovaniya: metodika rascheta i prakticheskoe primenenie pri proektirovanii [Building and foundation interaction: calculation methodology and practical application in design]. V.M. Ulitskii, Ed., St.-Petersburg: Stroiizdat, 2002. 48 p. (rus)

3. Shulyat'ev O.A. Osnovaniya i fundamenty vysotnykh zdanii [Bases and foundations of highrise buildings]. Moscow, 2016. 392 p. (rus)

4. Shulyat'ev O.A. Fundamenty vysotnykh zdanii [Foundations of high-rise buildings]. Vestnik PNIPU. Stroitel'stvo i arkhitektura. 2014. No. 4. Pp. 202–244. (rus)

5. Karpenko N.I., Karpenko S.N., Kuznetsov E.N. O sovremennykh problemakh rascheta vysotnykh zdanii iz monolitnogo zhelezobetona [Modern problems of structural analysis of high-rise building of insitu reinforced concrete]. In: II Vseros. (Mezhdunar.) konf. “Beton i zhelezobeton – puti razvitiya”, v pyati knigakh. (Proc. 2nd Int. Sci. Conf. ‘Concrete and Reinforced Concrete – Glance at Future’), in 5 vol., Moscow, 2005. V. 1. Pp. 149 –166. (rus)

6. Kabantsev O.V., Tamrazyan A.G. Uchet izmenenii raschetnoi skhemy pri analize raboty konstruktsii [Consideration of changes in design diagram in structural analysis]. Inzhenernostroitel'nyi zhurnal. 2014. No. 5. Pp. 15–26. (rus)

7. Almazov V.O., Klimov A.N. Eksperimental'noe issledovanie napryazhenno-deformirovannogo sostoyaniya konstruktsii vysotnogo zdaniya [Experimental investigation of stress-strain state of high-rise buildings]. Vestnik MGSU. 2013. No. 10. Pp. 102–109. (rus)

8. Nuzhdin L.V., Mikhailov V.S. Chislennoe modelirovanie svainykh fundamentov v raschetnoanaliticheskom komplekse SCAD Office [Creation of solid 3D CAD pile foundations in SCAD software]. Vestnik PNIPU. Stroitel'stvo i arkhitektura. 2018. No.1 Pp. 5–18. (rus)

9. Mikhailov V.S., Teplykh A.V. Uchet kharakternykh osobennostei razlichnykh modelei osnovaniya pri raschete vzaimnogo vliyaniya zdanii na bol'shikh fundamentnykh plitakh s ispol'zovaniem raschetno-analiticheskoi sistemy SCAD Office [Allowing for characteristics of various design models in calculating mutual influence of buildings on pile-raft foundation in SCAD software]. In: VI Mezhdunarodnyi simpozium. Aktual'nye problemy komp'yuternogo modelirovaniya konstruktsii i sooruzhenii (Proc. 6th Int. Sci. Symp. ‘Relevant Computer Modeling Problems of Structures’). Vladivostok, 2016. Pp. 133–134. (rus)

10. MicroFe-SDK. Programmnyi kompleks konechno-elementnykh raschetov prostranstvennykh konstruktsii na prochnost', ustoichivost' i kolebaniya [MicroFe-SDC software application for finite-element strength, stability and vabration analyses]. OOO “TEKhSOFT”, 2015. Available: www.tech-soft.ru (rus)

11. Yushchube S.V., Podshivalov I.I., Filippovich A.A., Tryapitsin A.E. Modelirovanie napryazhenno-deformirovannogo sostoyaniya kirpichnogo zdaniya povyshennoi etazhnosti na svainom fundamente [Stress-strain state modeling of high-rise brick building on pile foundation]. Vestnik grazhdanskikh inzhenerov. 2018. No. 4 (69). Pp. 72–77. (rus)

12. Yushchube S.V., Podshivalov I.I. Modelirovanie napryazhenno-deformirovannogo sostoyaniya svainogo fundamenta s plitnym rostverkom vysotnogo zdaniya s uchetom nedopogruzheniya svai [Modeling of stress-strain state of high-rise building pile raft foundation with incomplete pile installation]. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta – Journal of Construction and Architecture. 2020. V. 22. No. 2. Pp. 145−161.