• PROVIDE GEO-TECHNICAL REPRESENTATIVE FOR FIELD SUPERVISION TO MONITOR WORK FOR TECHNICAL COMPLIANCE.
• BORING IN SOFT MEDIUM, STIFF TO VERY STIFF SOIL & IN ROCK LAYERS.
• ROTARY CORING METHOD USING DOUBLE TUBE CORE BARRELS FOR OBTAINING ROCK CORES.
• DIFFERENT DRILLING METHOD SUCH AS CONTINUOUS FLIGHT AUGER, ROTARY DRILLING, WASH BORING & CONTINUOUS CORING MIGHT BE USED ACCORDING TO THE SUBSOIL STRATA TYPE.
• PERFORMING STANDARD PENETRATION TESTS AND OBTAINING SAMPLES USING A SPLIT-BARREL SAMPLER
• OBTAINING UNDISTURBED SAMPLES USING A TUBE SAMPLER (SHELBY TUBE).

• LABELING, BOXING AND TRANSPORTING SOIL SAMPLES AND ROCK CORES TO AN APPROVED STORAGE

  

  AREA AND/OR TESTING LABORATORY.

• INSTALLING GROUND WATER OBSERVATION WELLS.
• PERFORMING FIELD PERMEABILITY TESTS IN SELECTED GROUND WATER OBSERVATION WELLS.
• PERFORMING HAND DYNAMIC PENETRATION TEST.
• PERFORMING PLATE LOAD TEST.
• PERFORMING FIELD RESISTIVITY TESTS USING (WENNER 4 PIN METHOD OR EQUIVALENT) IN ACCORDANCE WITH ASTM G 57.

LABORATORY TESTING:

Performing laboratory tests as follows

• NATURAL MOISTURE CONTENT
• UNIT WEIGHT.
• ATTERBERGE LIMITS (LIQUID AND PLASTIC LIMITS).
• GRAIN SIZE DISTRIBUTION (SIEVE ANALYSIS & HYDROMETER)
• SPECIFIC GRAVITY.
• SHEAR TEST
  • UNCONFINED COMPRESSION TEST.
  • TRIAXIAL COMPRESSION TEST (UU, CU & CD)
  • DIRECT SHEAR TEST
• ODOMETER TEST
  • CONSOLIDATION TEST
  • SWELLING TEST
  • COLLAPSE TEST
  • AND/OR SWELLING TEST
• MOISTURE–DENSITY RELATIONSHIP (COMPACTION TEST)
• CBR TEST
• CHEMICAL ANALYSIS OF SOIL
  • SULPHATE CONTENT AS SO3
  • TOTAL SOLUBLE SALTS
  • CHLORIDE
  • PH
  • ORGANIC MATTER

FINAL REPORT WILL INCLUDE:

• NATURAL MOISTURE CONTENT
• SOIL CLASSIFICATIONS.
• GRADING CURVES.
• BOREHOLE LOGS AND SPT RESULTS.
• GEOLOGICAL CROSS-SECTIONS.
• GROUNDWATER LEVELS.
• LABORATORY TEST RESULTS.
• DESIGN SOIL PARAMETERS FOR ALL LAYERS INCLUDING, UNIT WEIGHT, MOISTURE CONTENT, CORROSION CHARACTERISTICS, ANGLES OF INTERNAL FRICTION, COHESION, MODULUS OF SUBGRADE REACTION.
• ANGLES OF INTERNAL FRICTION AND COHESIVE VALUES.
• ACTIVE, PASSIVE, AND AT REST SOIL PRESSURE COEFFICIENTS, WITH DESIGN RECOMMENDATIONS FOR ANCHORS/DEADMEN.
• COLLAPSE OR SWELLING PROPERTIES OF THE SOILS.
• DISCUSSION OF RESULTS OF INVESTIGATION WITH RELEVANCE TO FOUNDATION DESIGN AND CONSTRUCTION.
• RECOMMENDED ALLOWABLE BEARING PRESSURES AND EXPECTED SETTLEMENT VALUES.
• RECOMMENDATIONS REGARDIN PILE LENGTHS, CAPACITIES AND TYPES, SHOULD PILING BE REQUIRED.
• RECOMMENDATIONS’ REGARDING GROUND IMPROVEMENTS, IF THIS IS LIKELY TO BE AN ECONOMIC OPTION.
• TOTAL AND DIFFERENTIAL SETTLEMENTS UNDER TANKS OF DIFFERENT DIAMETERS.
• COMMENTS AND RECOMMENDATIONS REGARDING USE OF ON-SITE EXCAVATED MATERIAL FOR STRUCTURAL FILL, INCLUDING LIFT THICKNESSES, AND METHODS OF COMPACTION.
• AVAILABILITY OF SUITABLE FILL MATERIAL OUTSIDE OF SITE.
• RECOMMENDATIONS FOR DISPOSAL OF UNSUITABLE EXCAVATED SITE SOIL.
• RECOMMENDATIONS FOR SIDE SLOPES (TEMPORARY AND PERMANENT) TO BUNDS AND EMBANKMENTS, CUT FACES, AND ANY RELEVANT EROSION PROTECTION.
• CBR VALUES AND RECOMMENDATIONS FOR ROAD, PARKING AREA AND AREA PAVEMENT CONSTRUCTION.
• ELECTRICAL RESISTIVITY OF THE SOILS IN OHM CENTIMETERS, FOR CALCULATION OF RESISTANCE TO SOIL FOR EQUIPMENT GROUNDING, AND BURIED SERVICE CATHODIC PROTECTION.
• PH, SULPHATE, CHLORIDE, GYPSUM, ORGANIC MATTER AND OTHER SOIL/GROUNDWATER CHEMICALS AGGRESSIVE TO CONCRETE AND BURIED SERVICES.
• DEPTH OF FROST LINE AND EVALUATION OF FROST SUSCEPTIBILITY AND FROST HEAVE OF THE SOILS.
• LIKELIHOOD OF ACTIVE SEISMIC FAULTING, AND POTENTIAL SEISMICITY IN THE AREA.
• RECOMMENDATIONS REGARDING DEWATERING FOR CONSTRUCTION UNDER WATER TABLE LEVEL.
• SUMMARY, CONCLUSIONS AND RECOMMENDATIONS.

1- geo5 (pILE gROUPE)

 2- aLLPILE (fORM CIVILTECH.COM)