Copyright © 2018 Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. International Journal of Engineering & Technology, 7 (3.2) (2018) 269-274 International Journal of Engineering & Technology Website: www.sciencepubco.com/index.php/IJET Research paper Vibrated Soilcement Piles Tеtiana Nesterenko 1 , Oleksandr Novytskyi 2 , Serhiy Voskobiynyk 3 1 Poltava National Technical Yuri Kondratyuk University, Ukraine 2 prjsc "SUMBUD" Main Testing Laboratory In Construction, Ukraine 3 Poltava National Technical Yuri Kondratyuk University, Ukraine *Corresponding Author E-Mail: Novitskiy.A.P@Gmail.Com Abstract The article describes the vibration research effect of on strength increasing and soilcement density. Laboratory studies of vibration im- pact on soilcement during manufacturing on the basis of loam and sandy soils have been performed. The field experimental determina- tion of deep high-frequency vibration influence on soilcement piles material characteristics has been fulfilled. The process of material shrinkage during manufacture has been investigated. The obtained results are introduced in the process of soilcement base and founda- tions placement. Field comparative tests with static compressive loading of three types of piles, including vibro-compacted soilcement piles, have been conducted. With the PLAXIS software system, and with it’s axisymmetric particular version, the relationship between loading and soilcement piles settling was established. Numerical stamp tests modeling with the help of the software system PLAXIS was performed to detect the soilcement vibration influence on the reinforced base deformation. Keywords: soilcement, deep soil mixing method, high frequency vibration, soilcement piles, reinforced base, numerical modeling, Plaxis. 1. Introduction Modern buildings grow ever higher up to heaven, thereby the buildings weight increasing themselves, and with it load on the foundation and base, respectively. Taking into account the man- kind desire to be in the events center, there is a tendency towards the most efficient each land plot development in the central parts of the cities of Ukraine and the world. These factors lead to the fact that the large cities centers are dense- ly built by skyscrapers. Taking into account that the load on the base is rather substantial, it is shallow foundation impossible to use the, in addition to the slab bases, which in turn are very valua- ble. To place pile foundations is possible solution. The tight conditions of building do not allow the reinforced concrete piles bloking by diesel and hydro-hammers. The rational solution is to use drilling piles. To reduce pile foundation price, it is necessary to use soil that lies at the buildingbase. In the study of world experience, one can distinguish a method of soils saturation by cement, in result we have material of rather high soilcement strength. Due to the use of deep soil mixing method of soils saturation by cement, it is possi- ble to arrange vertical cylindrical soilcement piles of specified length and diameter. Thus, soilcement piles use is the most rational and economical method for foundation constructing under the proposed conditions. 2. Analysis of Recent Research and Publica- tions Analysis of domestic and foreign literary sources, where issues of the method of arrangement of soilcement piles, soilcement physical and mechanical properties, methods of its strength increasing, etc. are considered. Well known scientists worked on these issues: Abelev Yu.M., Boyko IP, Bezruk V.M., Easter Yu.Y., Vinnikov Yu.L., Gotman A.L., Gotman N.Z., Dalmatov BI, Zotsenko ML, Kirichek Yu.O., Kornienko MV, Krisan VI, Lartseva II, Marchenko VI, Morgun AS, Petrash R V.V., Tokin OM, Cruz RC, Consoli NC, Puppala J., Bhadriraju V., Porbaha A., Rutherford CJ, Cesare Melegari Yang, TS etc. It is noted that the most promising method of soilceement ele- ments manufacturing is deep mixing, when the soil in the wells is crushed and saturated slurry with a water-cement with mixing by a special stirrer (a drill tool). It is also established that the soilce- ment strength is influenced by soil type, cement content, quality of mixing, conditions and term of tufts, the water-cement mixture ratio and some additives presence. Strong soilcement is made of sandy soils, which is tight in water-soaked soils, with cement con- tent 15-25%. In time, which has been traced for 2 years, the soil- cement strength has been significantly increased. Essentially in- creases the soilcement strength of its consolidation by static load during factory design. In this case, the mixture removes air and water entrapped, but achieves a more dense location of compo- nents. This positively effects the product quality, as a result, its strength, reduced water resistance, frost resistance, corrosion re- sistance, shrinkage and durability increases significantly. In the deep soil mixing method, such sealing of the cement mixture is not possible. According to our data, the vibrational method of the cement mixture sealing was not investigated. 3. Formulating the Goals of the Article The soilcement piles disadvantage is the relatively less material durability due to the absence of large aggregates in the soilcement. This leads to the fact that sometimes the bearing capacity of piles