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THE INDEPENDENT SPECIALISTS

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Static Load Tests (SLT) of: foundation piles and pillars, diaphragm walls, anchors and soil nails

We carry out static tests in any possible configuration: vertical (compression and tension), lateral and raked piles load tests.

Lateral load testRaked compression test
Lateral load test Raked compression test

The tests are performed by applying a maintained load method or a CPR (Constant Rate of Penetration) type tests. Thanks to the application of an up-to-date apparatus, we have the capacity to carry out cyclic tests, e.g. to simulate loads in railway track or vehicle traffic environment.

Kentledge Static Load Tests - Due to high costs of handling and operating of hoisting equipment, kentledge load tests are performed exclusively in cases where there is no possibility to use anchor piles, or anchor pile capacity is insufficient. Kentledge is also often used to carry out zone load tests, e.g. in case of gravel columns or improved soils.

Kentledge load testKentledge load test
Kentledge load test

Static Load Tests with Anchor Piles - To carry our this type of test, extra-fine steel beams are required, hence their deformation under load is minimal. Threaded bars DYWIDAG Prestressing Steel THREADBAR® are applied as connecting members to join beams to anchor piles.

A wide range of our beams provides possibilities of test loading within a range of 100 kN up to 30 MN plus, using two/three/four/six/eight anchor piles arranged around the pile to be tested.

Load test with the application of anchor pilesLoad test with the application of anchor piles
Load test with the application of anchor piles

Static Load Testing Applying a Compound Method (anchor-kentledge) – it is a combination of the two methods described above.

Anchor-kentledge type of load test
Anchor-kentledge type of load test

Static Load Testing of foundation piles with measurement of strain distribution on the side and base surface using fiber cables

Measurements using a technology developed by fibrisTerre/NZ Sensing. We will soon publish a more detailed description of the method...

Scheme of a measurement setup
(src.: fibrisTerre)
Preparation of a pile for strain measurements
Preparation of a pile for strain measurements (photo: fibrisTerre)
Prepared pile with fiber cable
(fot.: fibrisTerre)

Dynamic Load Tests (DLT) of foundation piles

Dynamic tests are a universally applied method to assess bearing capacity of foundation piles. Tests are relatively inexpensive and the time required for their preparation is quite short. Loading is generated by stroking the pile head with a hammer of the piling machine or with a steel pile driver (1%-5% of the load) lowered inertly from the height of 0.5m ÷ 3.0m. Logging of the stress wave moving along the pile is effected by an accelerometers and extensometers installed on the pile head, ca. two diameters from the stroke level.

Pile head prepared for dynamic load testSensors installed on the pile head
Pile head prepared for dynamic load test Sensors installed on the pile head

automatic device for dynamic tests of bored piles
automatic device for dynamic tests of bored piles

Pile and diaphragm wall Integrity Testing (PIT / PET / CSL)

Sonic Echo Integrity Testing - The test is performed by application of the Pile Integrity Tester™ (PIT) or Pile Echo Tester (PET). The test belongs to the group of the 'Low Strain Dynamic Testing' and is intended to check the integrity of a pile by applying a slight stroke with a hammer on the pile head, hence generating a compression wave travelling along the shaft of the pile. A highly sensitive accelerometer placed on top of the pile records returning wave in a time function, i.e. according to the pile length.
Where any clear alteration is encountered, the wave is reflected and recorded prior to the recording of the signal stemming from the pile base. Due to this test, all the piles at the construction site can be checked quickly and efficiently, identifying their lengths, any necking of their diameters and/or cracks and even abrupt changes in geotechnic system of layers. Any potential deviations indicating pile structure-related problems are detected and analysed immediately. The test requires only a careful preparation of the pile head and ensuring a suitable access to the pile to be tested.

The pile prepared for Integrity TestingIntegrity Testing using PIT
The pile prepared for Integrity Testing Integrity Testing using PIT

Cross-Hole Sonic Logging - The test utilizes a phenomenon of ultrasonic wave propagation in the pile material - concrete. Performance of the test requires embedding from one to several steel tubes during concreting the pile so as to enable insertion of two probes: a transmitter and a receiver. When four tubes are used, up to six profiles of the pile can be obtained.

The up-to-date software: Tomography 3D by the Piletest Com. Ltd. provides a three-dimensional picture of the pile shaft.

Cross-Hole Sonic LoggingIntegrity Testing using the Cross-Hole Sonic Logging Method
Integrity Testing using the Cross-Hole Sonic Logging Method

News

archive »
03.09.2014
On behalf of the General Contractor - Metrostav, we are in the process of execution the load test and 
bearing capacity and continuity of the existing foundation piles at foundation of the bridges realized within the investment project "Continuation of the design and reconstruction of the S8 St. Powązkowska - Marki (Piłudskiego st.) Phase II St. Powązkowska node - the node Modlińska.
28.08.2014
Race against time has been won - the static load test of the flood embankment before driving through a 460-ton gas turbine in Wrzawy near Sandomierz
02.06.2014

As you see, not much happened on site. The whole action took place 15m deep in water.

The team of divers set up for us the micropile tension test. Displacement we have monitored with use of vibration wire Geokon tensometric sensors, with which we have been equipped by SHM System company. The gauges can withstand even 170m water pressure. The acceptance tests on micropiles precede concreting of foundation slab and dewatering of excavation which is made in between the diaphragm walls. Micropiles have been installed as an anchorage of foundation slab.

02.06.2014

We are very pleased to announce that we have completed the test program of diagonal static piles Ø1200mm. Once again, we have proven that we are not afraid of challenges and difficult projectsare our profession. For Remost S.C. - the General Contractor of the Footbridge on Road 7 in Jawornik we have done two technically difficult static test loads of large diameter piles Ø1200mm with inclination up to 15 degrees! Maximum force in the test was nearly 4.1 MN and its transfer have been provided by four diagonal anchoring piles i H setup. Our work has been successfully completed!

20.01.2014

We are proud to announce that it has been 10 years since our company started its operations on the Polish market. On this occasion, we would like to thank all our customers who during that time entrusted us to carry out research and all our trade partners who were supporting our activities for the past 10 years.

 

PILETEST Team

29.08.2013

We are pleased to inform that PILETEST became one of the awarded projecting companies in the contest Modernization of the Year 2012 for designs of subways for pedestrians under 3 Maja and Piastowska streets in Bielsko-Biała.

The award ceremony was held on August 28th at the Royal Castle in Warsaw, accompanied by officials and dignitaries, as well as media representatives. We would like to thank for our success to the Investor MZD Bielsko-Biala, architect Krzysztof Strama and installations designers and general contractors of the objects.

See more on: www.modernizacja-roku.pl

12.03.2013
From 5 to 8 March 2013, we were one of the participants and sponsors of the XXVIII Nationwide "Workshops for Construction Designers" - Wisla 2013. Workshop topics include issues related to the strengthening of the ground, foundation, deep excavation and embankments, considered in terms of design and realisaion. The workshop provided participants with current technical knowledge in relation to the prevailing legal situation, which was presented by prominent experts from around the country in the form of lectures and seminars.

We would like to thank all of you who have visited us at the Workshops for your interest and again invite you to establish closer cooperation.

21.01.2013
We are glad to inform you that our Company has qualified for the second time in row to the group of “Gazele Biznesu” (Eng. Gaselles of Business) the most dynamic Polish companies, the ranking of which was published in “Puls Biznesu” magazine for the 13th time.
09.01.2012
Please be informed that we are implementing procedures aiming at the introduction of the Quality Management System in Laboratories EN ISO/IEC 17025:2005. The planned date of introduction of the system is summer/autumn 2013.
09.01.2012
We are glad to inform you that our Company has qualified to the group of “Gazele Biznesu” (Eng. Gaselles of Business) the most dynamic Polish companies, the ranking of which was published in “Puls Biznesu” magazine for the 12th time.
06.06.2011
We are pleased to announce the upcoming seminar „Recent developments in testing of deep foundations” which will take place at the Krakow Sheraton Hotel on June 29th between 3:00 and 4:00 PM.
08.07.2010
On June 10-13 in Muszyna took place the conference "Engineering of building
22.07.2009
Our team includes design engineers, experienced in all aspects of foundation pile design. Also, utilising our extensive national and international experience in pile testing we are able to offer advice regarding suitable testing programmes and to trouble-shoot on problem sites. We invite Designers to consult with us at an early project design stage in order to benefit from our unique expertise.
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