Low-strain PIT package
The useful buyer question is not only the tester model, but hammer, sensor, coupling, software, training, and reporting workflow.
Project library
Visual project materials for engineering testing packages
An-Thai turns authorized project files, field photos, instrument materials, and training references into buyer-ready English guidance for pile testing, soil investigation, concrete inspection, and RFQ equipment packages.
Field-first library
Dynamic load test field setup
Sensor installation, cable routing, hammer energy, and signal quality are visible in the same field scene.
Bidirectional O-cell load package
Load cell capacity, welded cage integration, hydraulic pressure control, displacement measurement, and equivalent curve reporting must be specified together.
Video references
Show the test before explaining the test
These public videos are used as visual references for buyers and engineers. RFQ and technical follow-up stay through An-Thai.
External video
Open workflow reference
Pile Dynamics, Inc.
Pile Driving Analyzer animation
Good visual reference for high-strain dynamic pile testing concepts and signal flow.
Open video reference
External video
Open workflow reference
Pile Dynamics, Inc.
How to perform a pile integrity test
Short practical visual reference for low-strain pile integrity test setup.
Open video referenceExternal video
Open workflow reference
GRL Engineers, Inc.
Static load testing animation
Useful for explaining reaction, load application, and settlement measurement to buyers.
Open video reference
External video
Open workflow reference
GRL Engineers, Inc.
Crosshole sonic logging overview
Helpful reference for CSL access tubes, probes, and defect detection workflow.
Open video referenceExternal video
Open workflow reference
Public field reference
Borehole drilling, SPT, and rock coring
Field visual reference for soil investigation context before foundation testing.
Open video referenceMethod playbooks
Deeper engineering notes behind the images
Each method page follows the same buyer logic: what the test proves, what it cannot prove, what package is needed, what data must be checked, and what a buyer should request before purchase.
Capacity confirmation
Static Load Test
A static load test is still the most direct way to demonstrate pile load-settlement behavior. The engineering value comes from stable reaction, reliable displacement reference, controlled loading increments, and clean data logging.
What An-Thai checks before recommending equipment
- Confirm whether the test uses kentledge, anchor piles, reaction beams, or a bi-directional cell arrangement.
- Match jack capacity, pressure transducer range, displacement sensor stroke, and expected settlement before quoting.
- Plan reference beam supports outside the influence zone, especially on soft ground or crowded sites.
Expected output: The output should include load-settlement curve, time-settlement record, residual settlement, maximum test load, hold duration, and clear notes on any interruption, unloading cycle, or instrumentation anomaly.
Bidirectional load cell capacity proof
Bidirectional O-cell Static Load Test
Bidirectional testing uses an embedded load cell to separate upward shaft resistance from downward toe or lower shaft resistance. It is useful where kentledge or anchor reactions are difficult, but the load cell, cage integration, grouting, cables, and equivalent curve interpretation need careful planning.
What An-Thai checks before recommending equipment
- Confirm maximum test load, O-cell elevation, cage diameter, welding detail, hydraulic line protection, and displacement measurement plan before manufacturing.
- Coordinate the embedded cell with pile construction because access for repair is limited after concreting.
- Require calibration records, pump capacity, pressure transducer range, redundant readings, and English report workflow in the RFQ.
Expected output: A useful bidirectional report should separate upper and lower load-displacement response, state assumptions for equivalent top-load conversion, record pressure and displacement channels, and flag construction or instrumentation anomalies.
Fast field capacity and driving response
High-Strain Dynamic Load Test
High-strain dynamic testing is useful when projects need rapid capacity evidence during driving or re-strike. The tester is only one part of the package; pile head preparation and signal quality decide whether the data is useful.
What An-Thai checks before recommending equipment
- Check sensor mounting position, pile material, pile diameter, hammer type, drop height, and driving energy.
- Use strain and acceleration channels as a pair, then inspect force and velocity traces before trusting capacity interpretation.
- Train the field team to reject bad blows, loose sensors, poor coupling, and clipped channels immediately.
Expected output: A useful report should show field capacity estimate, transferred energy, stresses, integrity observations, blow records, force/velocity traces, and any recommendation for further CAPWAP-style analysis where required.
Rapid integrity screening
Low-Strain Pile Integrity Test
Low-strain PIT is a screening method for piles where the top is accessible. It is fast and economical, but it depends on pile head preparation, proper impact energy, sensor coupling, and engineering interpretation.
What An-Thai checks before recommending equipment
- Clean the pile head, remove loose concrete, and choose an impact point that creates a readable response.
- Select hammer hardness and sensor type according to pile length, section, and expected reflection strength.
- Use PIT for integrity screening while keeping load testing as the direct route for capacity proof.
Expected output: The report should explain pile length reflection, impedance changes, suspected necking or bulging, toe signal confidence, limitations, and which piles require confirmatory testing.
Deep drilled shaft integrity
Crosshole Sonic Logging
CSL is selected when drilled shafts or barrettes need internal concrete quality checks through access tubes. The practical risk is not only the instrument; tube installation, water filling, and probe travel control matter just as much.
What An-Thai checks before recommending equipment
- Confirm tube quantity, tube spacing, shaft diameter, cage installation quality, and access after concreting.
- Inspect first arrival time, signal energy, and waterfall plots instead of relying only on color maps.
- Prepare a remediation or coring decision workflow for zones with delayed arrival or strong signal loss.
Expected output: A complete CSL package should include tube pair logs, arrival time, relative energy, depth-based anomaly notes, waterfall or profile views, and engineering recommendations for further investigation.
Ground model input
SPT and Borehole Investigation
Soil investigation images help buyers understand the upstream data behind foundation testing. SPT tools, sampling, borehole logs, and groundwater notes influence which pile test method and instrument package is appropriate.
What An-Thai checks before recommending equipment
- Record borehole location, depth, sample recovery, SPT-N value, groundwater, and soil description consistently.
- Connect soil profile risk to the later testing package: long piles, variable rockhead, soft clay, or fill can change the method choice.
- Use investigation data to define expected capacity range before sizing jacks, reaction systems, and sensors.
Expected output: The output should support a clear ground model: borehole log, SPT-N profile, soil layer interpretation, groundwater record, sampling notes, and foundation testing recommendations.
Field media gallery
Use images as the entry point
The library now supports visual browsing by site condition, method, and equipment package. More authorized project images can be added without changing the page architecture.
Engineering decision matrix
How project material becomes buyer guidance
The point of the library is to convert field evidence into practical selection advice. Buyers should see the method, required package, and report output before they compare brands or prices.
| Method | Best use | Critical package items | Output to review |
|---|---|---|---|
| Static load test | Direct proof testing for working piles, trial piles, and acceptance programs where settlement behavior matters. | Hydraulic jack, reaction system, calibrated pressure measurement, displacement gauges, reference beam, data logger. | Load-settlement table, load-settlement curve, residual settlement, hold-time records, acceptance notes. |
| Bidirectional O-cell static load test | Capacity proof where conventional reaction systems are difficult or where separated upper and lower resistance is valuable. | Embedded O-cell or load box, hydraulic pump, pressure transducer, displacement sensors, protected cables, DAQ, calibration records. | Upper and lower load-displacement curves, equivalent top-load conversion, pressure records, displacement records, interpretation limits. |
| High-strain dynamic load test | Fast capacity and driving response checks for driven piles or re-strike testing where hammer energy is available. | Dynamic analyzer, strain sensors, accelerometers, mounting hardware, cables, hammer energy record, analysis software. | Force-time and velocity-time curves, transferred energy, stress, field capacity estimate, integrity observations. |
| Low-strain integrity test | Rapid screening of accessible piles for major impedance changes, length reflection, or suspected integrity issues. | PIT unit, accelerometer or velocity sensor, impact hammer set, coupling material, field review software. | Velocity response curve, toe reflection confidence, suspected necking, bulging, void, or soil resistance effects. |
| Crosshole sonic logging | Integrity assessment for drilled shafts, barrettes, or deep foundations with embedded access tubes. | CSL acquisition unit, transmitter and receiver probes, depth encoder, water-filled tubes, tube access plan. | Depth-based arrival time, signal energy, tube-pair profiles, anomaly zones, recommendations for coring or review. |
| SPT and borehole investigation | Ground model development before selecting foundation type, pile length, load range, and test package. | Drilling rig, SPT hammer and sampler, casing, sample boxes, borehole logging template, groundwater measurement. | Borehole logs, SPT-N values, soil descriptions, groundwater record, design and testing input. |
Organized material base
What the library supports
The library is a curated technical base for English product pages, buyer guides, training notes, RFQ checklists, and project-specific equipment recommendations.
Pile testing method statements
English-facing guidance distilled from static load, dynamic load, crosshole sonic logging, and low-strain integrity testing material used in real foundation workflows.
Instrument and equipment lists
RFQ-ready package references for static load acquisition, wireless displacement sensors, pressure transmitters, hydraulic jacks, low-strain testers, high-strain testers, and CSL systems.
Calibration and traceability files
Controlled references for sensor calibration planning, acquisition channel checks, strain and acceleration sensor traceability, and practical acceptance before mobilization.
Training and operation material
Operation videos, software screenshots, pile head preparation notes, site workflow diagrams, and report preparation examples for An-Thai technical support.
Project report examples
Curated report structures for borehole investigation, pile integrity, dynamic load, static load, crosshole sonic logging, and foundation acceptance packages.
Data and software workflow
Acquisition, analysis, reporting, dashboard, and later database migration references so the website can grow from library pages into a real technical data platform.
Source handling
How project material is prepared for buyers
An-Thai converts approved technical material into practical buyer guidance while keeping confidential commercial, personal, and project-sensitive information protected.
Commercial files, personal contact details, and restricted project records are handled as confidential material.
Buyer enquiries are routed through An-Thai RFQ and technical follow-up channels.
Project-sensitive files are converted into generalized engineering lessons unless public release is approved.
Technical methods are converted into English guidance linked to relevant equipment, standards, and RFQ pages.