Type of Pile Load Test and Why Bi-Directional Pile Load Test Offers Better Solution!

Pile testing is essential in construction to ensure the stability and load-bearing capacity of foundation piles. Common types of pile tests include Static Load Tests (SLT), Dynamic Load Tests (DLT), and Bi-Directional Load Tests (BDLT). SLTs, such as Kentledge tests, involve applying a gradual load using weights to assess pile strength. DLTs, like High Strain Dynamic Testing (HSPLT), employ a hammer to impart high-strain impacts, measuring the pile's response. BDLTs, exemplified by the YJACK Bi-Directional Pile Load Test, use hydraulic jacks to apply load in both upward and downward directions, enhancing accuracy and safety while saving time and manpower. These tests collectively ensure that piles meet the design requirements and ground conditions.

1. PILE TEST
TYPE OF
WWW.MRGEOTECH.COM

2. Bi-Directional
(MLT/CRP)
Pile Test
Static Method Dynamic Method
Kentledge Blocks
(MLT/CRP)
Anchor Piles
(MLT/CRP)
High-Strain
(PDA)
Medium-Strain
(Statnamic)
Low-Strain
(PIT)
Ultra-Sonic
(CSL)

3. Test Type B (bored piles)
Test Type C, not available
Bi-Directional Pile Load Test
Piston Jack
(since 1980s)
Flat Jack
(since 2010s)
Test Type B (bored piles)
Test Type C (concrete Pile)
Piston Jack, old technology
Cannot test concrete piles
Use assumptions to do analysis
Cannot take lateral loads
Patent 2010: Flat Jack
Patent 2014: Concrete Piles
Patent 2018: Analysis Software
Patent 2022: Rocket Shaft

4. Best
Technology
Great
Equipment
Dependable
Support

6. All-in-one geotechnical service provider
Geo Global . Geo Connectivity .

7. Patented Technologies Test Equipments Online Modules

8. 2000++
Piles
800++
Projects
20++
Patents

9. ROCKETshaft
working pile
2014
2018
Pile Collar
YJACK
Pile Joint
Pile Wall
YJACK enclosure
Split Level
QSDAP Plot
Measured Displacement Up & Down Plots
Computed Displacement Up & Down Plots
Analyzed Displacement Up & Down Plots
Piston
Bladder
Concrete (part of pile)
2010
Bladder design. 100% made from steel.
No rubber seal. The best jack for pile test.
FLAT JACK
Bi-directional application on driven concrete
piles and open ended piles.
CONRETE PILES
More accurate results using pile-soil
modeling simulation analysis.
SIMULATION QSDAP
2022
Recover the split zone to carry pile lateral or
bending loads.
ROCKET SHAFT
Cylinder
YJACK System Year 2010 Year 2014 Year 2018 Year 2022
Jack Design Flat Jack
System Application Bored Piles Concrete Piles
Analysis Method Analytical SS/CP4 Analytical SS/CP4 Simulation QSDAP
Installation Method YJACK Normal YJACK Normal Easy DIY Rocket Shaft
System Advancement Bladder Jack Type C & Type O Simulation Analysis Resist Bending
Production Method Costly Conventional Costly Conventional Costly Conventional Robotics IR4.0
Operation Method Costly Conventional Costly Conventional MrGeo2U, Online 50% MrGeo2U, Online 80%

10. Less parabolic curve
Less realistic behavior
Realistic parabolic curve
Realistic loading behavior
SS/CP4 Plot QSDAP Plot

11. No ROCKET Shaft
to be grouted after
Sonic Test & YJACK Test
(cannot take lateral loads)
ROCKET Shaft
to be grouted after
Sonic Test & YJACK Test
(to carry pile lateral loads)
No ROCKETshaft With ROCKETshaft

12. Competent Installers Powered by GeoEdu

13. Dangerous and High Cost
0 – 1,500 tn (1 – 10 days)
1,500 – 3,000 tn (10 – 20 days)
> 3,000 tn (> 20 days)
Safe and Low Cost
0 – 1,500 tn (1 – 2 days)
1,500 – 3,000 tn (1 – 2 days)
> 3,000 tn (1 – 2 days)
Kentledge YJACK360

14. Economical
Cost
Simple
Fast
Environmental
Green
Unlimited
Load
All
Types
Safe
Work

15. www.mrgeotech.com