GROUND FOUNDATION IMPROVEMENT IN THE TERRITORY OF THE CONSTRUCTION FIELD

Ivaylo Anastasov; Chavdar Kolev

Scientific paper ID 1084 : 2014/3

GROUND FOUNDATION IMPROVEMENT IN THE TERRITORY OF THE CONSTRUCTION FIELD

Ivaylo Anastasov, Chavdar Kolev

The presented results are of field experiments aiming to improve the ground in concrete warehouse situated on weak ground base. Two test areas are executed. The blades the removal of the existing embankment and its replacement with new in two options. Measurements of the elastic and the deformation modulus are with static plate according to BDS 15130-80 and performed every stage of the trial areas. For this purpose, the following equipment is used: vibro roller weighing 10t, a wheel backhoe excavator, mini - wheel loader, cutter Asphalt Zipper. The suitability of the ground for reliable operation in the future production process in the building is evaluated. A numerical model with FEM is developed, the results were compared with those of in-situ experiments and the technical solution is optimized. Two versions of the ground are modelled, the first of which is based on the Mohr-Coulomb Theory, and the second one – on the Boussinesq Linear elasticity Theory. After selecting the design decisions in the course of construction extra in-situ tests were performed to establish the design parameters of the finished structure. Optimization is achieved of the design solution by iterative complement the analytical model with experimental results.

• Reload article • Open/Download as PDF

слаба почва натискова плоча опити in-situ опитни резултати МКЕweak soil plate loading test in-situ tests test results FEMIvaylo Anastasov Chavdar Kolev

BIBLIOGRAPHY

[1] BDS 15130-80, Pochvi stroitelni. Opredelyane na elastichniya i deformatsionen modul chrez natovarvane s kragla plocha.
( [1] БДС 15130-80, Почви строителни. Определяне на еластичния и деформационен модул чрез натоварване с кръгла плоча. )

[2] BDS EN 933-1:2012, Izpitvaniya za opredelyane na geometrichnite harakteristiki na skalnite materiali. Chast 1: Opredelyane na zarnometrichniya sastav. Metod chrez presyavane.
( [2] БДС EN 933-1:2012, Изпитвания за определяне на геометричните характеристики на скалните материали. Част 1: Определяне на зърнометричния състав. Метод чрез пресяване. )

[3] BDS EN 1997-1.: Geotehnichesko proektirane. Osnovni pravila.
( [3] БДС EN 1997-1.: Геотехническо проектиране. Основни правила. )

[4] BDS EN 1997-2.: Geotehnichesko proektirane. Izsledvane i izpitvane na zemnata osnova.
( [4] БДС EN 1997-2.: Геотехническо проектиране. Изследване и изпитване на земната основа. )

[5] Dingozov, G.A., T.Etimov, B.Kirov, Fundirane v slabi pochvi, Tehnika, Sofiya, 1980.
( [5] Дингозов, Г.А., Т.Етимов, Б.Киров, Фундиране в слаби почви, Техника, София, 1980. )

[6] Ilov, G., T.Germanov, Zh.Zhelev, B.Kirov, D.Denev, L.Mihova, R.Varbanov, A.Totsev, M.Todorov, Iv.Ivanov, Rakovodstvo po geotehnika, KIIP, Sofiya, 2012.
( [6] Илов, Г., Т.Германов, Ж.Желев, Б.Киров, Д.Денев, Л.Михова, Р.Върбанов, А.Тоцев, М.Тодоров, Ив.Иванов, Ръководство по геотехника, КИИП, София, 2012. )

[7] Etimov, T., Zemna mehanika. Fundirane, ABS Tehnika, Sofiya, 2011.
( [7] Етимов, Т., Земна механика. Фундиране, АБС Техника, София, 2011. )

[8] Michova, L., C. Kolev - Improvement of the Soil under the Concrete Pavement of a Plant’s Hall - Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013

[9] Evstatiev,D. - Metodi za podobryavane na stroitelni pochvi, S. BAN, 2009.
( [9] Евстатиев,Д. - Методи за подобряване на строителни почви, С. БАН, 2009. )