VİBROFLOTATION · PDF fileASO I. OSB Asora Ticaret Merkezi ASO Bulvarı No:1 A Blok Kat:3 No:306 06930 Sincan / Ankara • ozkanlar@ ... 8/26/2014 1:54:33 PM

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Özkanlar Hidrolik Makina İmalat İnşaat Sanayi ve Ticaret Limited ŞirketiASO I. OSB Asora Ticaret Merkezi ASO Bulvarı No:1 A Blok Kat:3 No:306 06930 Sincan / Ankara

www.ozkanlarmakina.com.tr • [email protected] : +90 312 386 05 60 • Fax : +90 312 386 05 68

VİBROFLOTATIONVibro replacement method of constructing stone columns through fill material and weak soils to improve their load bearing and settlement characteristics, provides an economic and technically sound solution to a wide range of geotechnical and foundation problems.

To contract the stone columns, Özkanlar vibroflot is allowed to penetrate to the design depth and the resulting cavity is filled with hard stone, free clay and silt fines. The required interaction between the stone columns and the surrounding soils, is developed by the stone infill being introduces and compacted in stages, each stone being throughly compacted.

The stone columns and the confining soils form and build foundation support system having low compressibility and improved load bearing capacity. In cohesive soils, relatively rapid consolidation is achived through excess pore water pressures being readily dissipated by the stone columns.

working principle & technical Data Monitoring & Reporting

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0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19Time (min)

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THE SOFTWAREThe software is used for data application purposes; it generates and provides a simple display of the various parameters.

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Thrust Pressure(m/s)

Thrust Pressure(Pa)

Profile(m)

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0 1 0 30000000 0,38 0,380

Gravel Hooper & Feeding Mechanism

CONTROL PANELTHE INSTRUMENTSDisplay is placed in totally waterproof housing that has a membrane keyboard and LCD screen. From the screen, the operator can control compaction process parameters in real time.

Vibroflotation Probe penetrates weak soils under action of vibrations and water jetting medium and forms a hole to design, usually a competent bearing stratum.After being held at depth for a short time, the vibroflot is withdrawn and a charge of stone is placed into the hole.The vibroflot is reintroduced into the hole; the stone is compacted, forced out and tightly interlocked with the surrounding ground.By adding successive charges of stone and compact each one, a column of very compact stone is built up to the ground level. The rainforcing and compacting action of the stone columns serves to significantly improve the load bearing and settlement characteristics of the ground.

In the Bottom Feed Stone Column operation, Özkanlar vibroflotation probe have a gravel feed bunker located on top and feed tube located side by the probe.First step, the Özkanlar vibroflotation probe lowered desired depth using with vibration and air. To make the compacted gravel column the vibroflot pulls up one meter then the gravel from hooper via side tube, goes down and empty space replaced by gravel. While gravel replaced with empty space, the vibration head compacted the gravel and this operation repeat all the way up to the surface. Thus, the gravel column completed. In this method, the diameter of column can be changed according to different soil layers.

Top Feed

Bottom Feed

Power Packs PP 252 PP 343

Output (kW) 185,2 252

Output (hP) 252 343

Oil Flow (lt/dk) 317,1 342

Working Pressure (bar) 350 350

Diesel Tank Capacity (lt) 600 600

Hydrolic Oil Capacity (lt) 350 400

Weight and DimensionsLenght / L (mm) 3700 3700

Height / H (mm) 1590 1590

Width / W (mm) 1935 1935

Weight / kg 3150 3680

Technical Data

Vibroflotation Machine ÖVF 300 - 2 ÖVF 300 - 2 HF ÖVF 300 - 4 ÖVF 400 - 9 ÖVF 400 - 9 HF

Eksantrik Moment (kgm) 2,026 2,026 4 9,1 9,1

Frekans (rpm) 3000/50 3600/60 3000/50 1800/30 2100/35

Santrifüj Kuvveti (kN) 200 293 396 329,6 448,6

Güç (kW) 90 90 218 115,5 134,8

Ağırlık (Toplam) 1400 1400 2000 2200 2200

Yükseklik (H) 3100 3100 3840 3670 3670

Genişlik (W) 335 335 570 416 416

Uzunluk (L) 758 758 520 920 920

Güç Ünitesi PP252 PP252 PP252 PP343 PP343

Vibroflotation Equipment

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Probe

Feeding Tube

REPORTInstrumentations is used to measure, check and record the parameters for foundation processes that use vibration for compacting ground and materials: y Depth of Treatment y Compaction Rate

y Diameter of Column y Volume of the Material