2019, Vol. 6, No. 4. - go to content...

Permanent address of this page - https://t-s.today/en/07sats419.html

Метаданные этой статьи так же доступны на русском языке

DOI: 10.15862/07SATS419 (https://doi.org/10.15862/07SATS419)

Full article in PDF format (file size: 440.1 KB)

For citation:

Galimnurova O.V., Galimnurov I.R., Samofeev N.S., Harisova R.A. Technical and economic efficiency of the use of foundations in rammed pits according to sounding data during dynamic tests. Russian Journal of Transport Engineering. 2019; 6(4). Available at: https://t-s.today/PDF/07SATS419.pdf (in Russian). DOI: 10.15862/07SATS419

Technical and economic efficiency of the use of foundations in rammed pits according to sounding data during dynamic tests

Galimnurova Olga Vitalievna
Ufa state petroleum technological university, Ufa, Russia
E-mail: galimnurova@mail.ru

Galimnurov Ilya Robertovich
Ufa state petroleum technological university, Ufa, Russia
E-mail: volvita@inbox.ru

Samofeev Nikita Svyatoslavovich
Ufa state petroleum technological university, Ufa, Russia
E-mail: volvita@inbox.ru

Harisova Regina Alfredovna
Ufa state petroleum technological university, Ufa, Russia
E-mail: volvita@inbox.ru

Abstract. The construction of foundations is one of the material-intensive and time-consuming areas in the practice of construction. The attempt to reduce material consumption and laboriousness helps to improve the variability of choice among foundations in rammed pits. Due to soil compaction and increase of its bearing capacity, this type of foundations allows to reduce material consumption, just as concreting without formwork – to reduce the laboriousness of the work. Foundation pits are not excavated, but rammed to the required depth by tamping, followed by concreting of the formed foundation pit or with the installation of prefabricated reinforced concrete elements.

The article describes the method of dynamic control of the bearing capacity of foundations in rammed pits according to the technological parameters of ramming in different soil conditions (from semi-solid to soft plastic consistency) and contains empirical values and formulas.

The authors show the basic conditions for the formation of pit rams, the formed zones and changes in the properties of soils and their texture, strength indicators, providing sufficient safety for building structures.

The advantage of using foundations in rammed pits is ensured by the combined effect of their implementation, where its value heavily depends on specific construction conditions and can be achieved by: reducing the cost of design and survey work; when choosing the least costly structural solution to the foundations; a significant reduction in labor costs during the construction and installation work of the zero cycle of buildings for various purposes. The authors tested the results of this research during the construction of the facilities of OJSC “Neftmontazh” and the cumulative effect of the use of rammed pits in the amount of more than 700 thousand rubles was achieved.

Keywords: ramming; rammed pits; dynamic method; sounding of soils; bearing capacity; economic effect; efficiency

Download article in PDF format