The document is a geotechnical site exploration report for a site located at Rakoczi utca 1-5 in Debrecen, Hungary. It was prepared for Abu-Alkhail For Construction Managements Co. by Abu-Alkhail Construction Labs. The site investigation found localized fills less than 20 feet deep over bedrock. Groundwater was encountered between 3.5 and 5.8 meters below ground surface. Based on soil testing and properties, the report recommends drilled shaft foundations to support design loads for any structures. Dewatering will likely be required for deeper excavations due to the permeable sandy soils encountered.

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Project Number/date: 6588/19-04-2019
Prepared For: Abu-Alkhail For Construction
Managements Co.
Prepared By: Abu-Alkhail Construction Labs
Eng: Abu-Alkhail Mohammad - FPIIDJ
GEOTECHNICAL SITE
EXPLORATION REPORT
RAKOCZI UTCA 1-5,
DEBRECEN 4024

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CONTENTS
1. INTRODUCTION
o GENERAL
2. SITE CONDITIONS
o DESCRIPTION
o GROUND WATER
3. FIELD EXPLORATION AND SAMPLING
o FIELD EXPLORATION
o LABORATORY TESTING
4. ENGINEERING RECOMMENDATIONS
o GENERAL
o DEWATERING
5. REFERENCES

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1.Introduction
 General
I was instructed by Abu-Alkhail For Construction Managements Co. to undertake
geotechnical and geo-environmental investigation in relation to the proposed
redevelopment of the site at Rakoczi utca 1-5
 Geology of investigated site/Rakoczi Utca 1-5
As documented in this report, the investigated site shown in the map is generally
well-suited for the planned construction. The investigated site presently contains
localized fills less than about 20 feet deep overlying bedrock; the envisioned
Project would improve the onsite fill materials to optimize foundation
performance. The investigated site is relatively free of geologic hazards. The
investigated site is situated on level ground unaffected by previous land sliding
and there is little to no potential for ground failure to occur beneath the site.
2. SITE CONDITIONS
 DESCRIPTION
The site is a bit congested with buildings and it seems to have some
fertile loamy soil as there are many plants and forms of vegetation
rowing about it. It is bordered by roads from south and west but is a very quiet
residential area as the image above shows. No high voltage, electrical or
telephone poles, sewer or water pipes were observed within the depth of the
drilled boreholes.

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 GROUND WATER
Groundwater was encountered in Borehole 1 (B-1) and Borehole (B-2) at depth
ranging between 3.50 m and 5.80 m.
Perched groundwater resulting in shallows inflows could occur near the interface
between sandy soil and any underlying relatively impermeable clay.
Seasonal variation in groundwater level must be expected.
3.FIELD EXPLORATION AND SAMPLING
 FIELD EXPLORATION
Field explorations at the of Rakoczi Utca 1-5 consisted of advancing two borings. The
borings (designatedB-1andB-2)were drilled adjacent toproposedlocationsofsignal poles.
Boring B-1, drilled near the Rakoczi utca, was in the west lane and boring B-2 was drilled
near the near the Csapo utca, in the east lane. Both borings were drilled to a depth of
approximately 10m below ground surface under the supervision of myself. Western States
Soil Conservation drilled the borings using a truck-mounted CME-75 drilling rig. The borings
were advanced using hollow stem auger (HSA) drilling techniques. The boring locations are
illustrated on the map. Disturbed soil samples were collected with a two-inch outside
diametersplit-spoonbarrelsampler.TheBoringLogLegenddescribesthegeotechnicaldata
and symbols used in the logs. The map describes the terminology used for soil and rock
descriptions.

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 Laboratory Testing
Laboratory test reports
Representative soil and rock samples were collected from the drilled boreholes, tightly
sealed and transported to TRD’s Laboratories in Eger.
Tests occurred
The following tests were performed to evaluate the engineering properties of the soils
and rocks influencing the performance of the proposed structure:
1- Natural moisture contents
2- Liquidity and plasticity limits
3- Direct shear test showing out mainly the cohesion and angle of internal friction.
The results of the mentioned tests are summarized in the appendix.

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4.ENGINEERING RECOMMENDATIONS
 GENERAL
Based on the subsurface soils encountered during my field explorations, I recommend
drilled shaft foundations be used to support the design loading for the signal poles.
Typical shafts in the ODOT Standard Specifications are 36- to 42-inches in diameter and
constructed of reinforced concrete. For the proposed signal poles, the lateral capacity will
govern the shaft design length and diameter.
 DEWATERING
At the time of the investigation, groundwater was encountered at depth
ranging between 3.50 m and 5.80 m in Borehole 1 (B-1) and Borehole
(B-2) at depth ranging between 3.50 m and 5.80 m. The rate of inflow of the
groundwater is expected to be relatively high in the sandy soils encountered at
these boreholes locations. Based on the results of this preliminary
investigation, dewatering is expected to be required in deeper excavations.

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5.REFERENCES
AASHTO 2001 Standard Specifications for Structural Supports for Highway Signs,
Luminaries, and Traffic Signals, 4th
Edition, 2006 Interim.
Beeson, M.H., Tolan, T.L., and Anderson, J. L., 1989, The Columbia River Basalt Group in
western Oregon; geologic structures and other factors that controlled flow emplacement
patterns, in Reidel, S.P., and Hooper, P.R, eds., Volcanism and tectonism in the Columbia
River flood-basalt province: Geological Society of America Special Paper 239, p. 223–246.
Oregon Department of Transportation – Highway Division, 1987, Soil and Rock
Classification Manual, 50 p.
Oregon Department of Transportation – Standard Specifications 2008.
Oregon Department of Transportation – Oregon Standard Drawings, Traffic Signal
Supports, General Details and Design Criteria (TM650, effective dates 11/08/2007 to
05/31/2008).
Oregon Water Resources Department, Well Construction Information: from website at
http://www.wrd.state.or.us.
Singh, J.P. and Associates, 2006, Final Report, Laterally and Axially Loaded Deep
Foundation Systems, Computer Program DFSAP, Deep Foundation System Analysis
Program, Based on Strain Wedge Method. WSDOT Contract No. Y-8376-B, April 30, 2006.
Swanson, R.D., McFarland, W.D., Gonthier, J.B., and Wilkinson, J.M., 1993, A description
of hydrogeologic units in the Portland Basin, Oregon and Washington: U.S. Geological
Survey Water-Resources Investigations Report 90-4196, 56 p., scale 1:100,000.