Pile load testing services is an important factor for the piling works that should be properly planned and factored into the project schedule and project costs at an early stage in order to validate the design safety factors, pile design & lengths, to establish the pile installation criteria and to quality control the piling works.
Static pile load testing (axial and lateral)
Dynamic compression load testing by pile driving analyzer (PDA)
Pile integrity testing (PIT)
STATIC PILE LOAD TESTING
The test procedure is based on the direct measurement of pile head displacement in response to a physically applied load. The test pile is loaded using a calibrated hydraulic jack that applies the test load to the pile by pushing against a beam placed directly over the test pile. The test beam is restrained by an anchorage system consisting of reaction piles installed in the ground to provide tension resistance. Once the load test frame is installed and fully instrumented, the hydraulic jack applies the test load in a series of increments according to the testing requirements as per project specifications. Each load is held for a certain amount of time until either twice the design load or pile failure is reached, whichever comes first. Pile movement is recorded with each incremental load.
Piles can be tested for compression, tension or lateral loads. By providing actual capacity and deflection values, the test results can be used to confirm that the pile design load can be adequately supported. Depending on the test pile’s performance, the results may also allow for project cost savings by permitting an increase in the pile design load, a reduction in the overall pile length, or a quantification of capacity in difficult or unknown soil conditions.
Establishing testing programme
Pile testing planning
Pile Installation and pile head preparation
Reaction system
Load application system and monitoring
Displacement measurement
Testing Procedure
Documentation and reporting (evaluation of test results / conclusions and recommendations)
DYNAMIC COMPRESSION LOAD TESTING BY PILE DRIVING ANALYSER (PDA)
Dynamic load testing of piles by Pile Driving Analyser (PDA) is a fast and effective method of assessing foundation bearing capacity that requires instrumenting a deep foundation with accelerometers and strain transducers (sensor) and analysing data collected by these sensors. PDA testing can be undertaken during initial driving or during re-strike drives after allowing soil setup on the pile for a suitable period of time. in order to verify pile resistance, CAPWAP analysis is performed on field data from a selected representative hammer blow from the PDA test record and the following information on the pile resistance can be derived:
Pile load bearing capacity
Skin friction distribution over the pile length and the end bearing capacity
Prediction of load-settlement chart
Evaluation of pile integrity
Hammer performance
Maximum driving stresses
PILE INTEGRITY TESTING (PIT)
Pile Toe Level
Shaft restraints
Cracks
Reductions in section
Zones of poor quality concrete
The test method is performed with a hand held hammer, a sensitive accelerometer and the Pile Integrity Tester. The accelerometer is attached to the top of the pile, and then a compressive wave is generated by tapping the pile head with a hammer. When the downward compression wave encounters a change in cross section or in concrete quality, it generates an upward tension wave that is later observed at the pile top. The velocity recorded along with the subsequent reflections from the pile toe or pile discontinuities are graphically displayed. The effectiveness of the system is limited to a pile length not exceeding (30 to 60) * pile diameters depending on soil condition and concrete quality.
GEOTECHNICAL INVESTIGATION TESTING METHODS
Dynamic Core Drilling Testing
Standard Pentration Testing
SPT Testing Services
Plate Load Testing
Soil Electric Resistivity Testing
Field density Testing
Field Permeability Testing
Field CBR Testing
Lateral Load Testing
Pile Load Testing
Bentonite Powder Testing
Compaction Testing
Electrical Resistivity Test (In-situ)
Geotechnical Investigation
GEOTECHNICAL INVESTIGATION SERVICES
- Subsurface Investigations
- Test Borings
- Rock Coring
- CPT Soundings
- Test Pits
- Laboratory Testing
- Percolation Testing
- Infiltration Testing
- Asphalt/Concrete Coring
- Dynamic Cone Penetrometer Testing
- Carbonate Assessments
- Sinkhole Investigation
- Fracture Trace Analysis
- Seismic Site Classification
- Bearing Capacity and Settlement Analysis
- Slope Stability Analysis
- Topsoil Nutrient Analysis
- Flexible/Rigid Pavement Evaluation/Design
- Soil Resistivity
GEOLOGICAL ANALYSIS
Geophysical Analysis laboratories to do all your Geology Analysis, surveys, exploration, characterization, experimentation, projects, testing, research, developments, investigations, certifications or studies, such as:
- Angle of Repose Testing
- Ash Content Testing
- Borehole Logging Testing
- Buried Obstructions Testing
- Cement Permeability Testing
- Cement Stability Studies Testing
- Civil Engineering Testing
- Clay Lumps Testing
- Compactibility Testing
- Compaction Testing
- Compressibility Testing
- Consolidation Testing
- Construction Materials Evaluations Testing
- Dredged Materials Testing
- Durability Testing
- Effective Shear Strength Testing
- Field Audits
- Frequency Domain Electromagnetic Survey Testing
- Geologic Hazard Identification Testing
- Geological Features Testing
- Geology Characterization Testing
- Geology Investigations
- Grain Size Distribution Testing
- Grain Size Testing
- Ground Penetrating Radar Testing
- Groundwater Pathways Testing
- Hydraulic Conductivity Testing
- In-situ Testing
- Land Surveys Testing
- Lateral Earth Pressures Testing
- Liquid Limits Testing
- Lloyd Kahn TOC Testing
- Marine Surveys Testing
- Minerals Ore Analysis Testing
- Nuclear Density Testing
- Oxidation Reduction Potential
- Particle Analysis Testing
- Permeability Testing
- Permeability Testing
- Plasticity Testing
- Resistivity Imaging Testing
- Rock Mass Characteristics Testing
- Rock Mechanics Testing
- Rock Slope Engineering
- Sediment Characterization Testing
- Seepage Analysis Testing
- Seisimic Refractance Testing
- Seismic Hazard Evaluation Testing
- Seismic Reflectance Testing
- Site Inspections Testing
- Slope Stability Testing
- Soil Compressibility Testing
- Soil Mechanics Testing
- Soil Strength Testing
- Subsurface Exploration Testing
- Swell Testing
- Swelling Pressure Testing
- Time Domain Electromagnetic Survey Testing
- Time Domain Electromagnetic Survey Testing
- Total Shear Strength Testing
- Triaxial Testing
- Tundra Support Studies Testing
- Void-Ratio Testing
- Water Tables Surfaces Testing
- Well Test Analysis Testing
GEOLOGICAL MATEL ANALYSIS
- Aluminum Analysis
- Barium Analysis
- Bismuth Analysis
- Boron Analysis
- Cadmium Analysis
- Calcium Analysis
- Cesium Analysis
- Chromium Analysis
- Cobalt Analysis
- Fluorine Analysis
- Gold Analysis
- Iron Analysis
- Lead Analysis
- Lithium Analysis
- Magnesium Analysis
- Manganese Analysis
- Nickel Analysis
- Phosphorous Analysis
- Potassium Analysis
- Selenium Analysis
- Silver Analysis
- Sodium Analysis
- Sulfur Analysis
- Tin Analysis
- Titanium Analysis
- Uranium Analysis
- Vanadium Analysis
- Zinc Analysis
- Zirconium Analysis and Zirconium Testing
GEOLOGICAL TESTING SERVICES LIST
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