Pile Integrity Test (PIT)
16.6 هزار بار بازدید -
3 سال پیش
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Pile Integrity Test (PIT), or
Pile Integrity Test (PIT), or “low strain impact integrity testing of deep foundation” is a widely used non-destructive test method for the evaluation of pile quality, and integrity. The test can also be used to estimate the unknown length of existing piles and foundations. In the low strain impact integrity testing, the response of the pile to an impact on the head of the pile shaft is determined by a high precision transducer mounted on the pile head. The transducer can either be an accelerator, or a velocity sensor. The test standard allows two different procedures to obtain acceleration and force information: 1) Pulse-Echo Method (PEM) or Sonic-Echo (SE) and 2) The Transient Response or Impulse-Response (IR).
A pile integrity test (also known as low-strain dynamic test, sonic echo test, and low-strain integrity test) is one of the methods for assessing the condition of piles or shafts. It is cost-effective and not very time-consuming.
Pile integrity testing using low-strain tests such as the TDR (Transient Dynamic Response) method, is a rapid way of assessing the continuity and integrity of concrete piled foundations.
Construction and installation of concrete piles and deep foundations is a challenging task. Problems may occur during the process, which in turn results in defects or anomalies such as: pile formation problems, concrete faults, and reinforcement installation issues. The resulting defects can negatively impact the durability and mechanical performance of the pile. Pile Integrity Tests are a group of non-destructive test methods that are used by geotechnical engineers and contractors to for quality control and quality assurance of deep foundations and piles.
Concrete piles and drilled shafts are an important category of foundations. Despite their relatively high cost, they become necessary when we want to transfer the loads of a a heavy superstructure (bridge, high rise building, etc.) to the lower layers of soil. In general, Pile Integrity refers to certain characteristics of deep foundations and piles such as:
Physical Dimensions of Pile (Length or Cross-Section);
Continuity of Pile (presence of Voids or Major Cracks); and
Consistency of the Pile Material.
A pile integrity test (also known as low-strain dynamic test, sonic echo test, and low-strain integrity test) is one of the methods for assessing the condition of piles or shafts. It is cost-effective and not very time-consuming.
Pile integrity testing using low-strain tests such as the TDR (Transient Dynamic Response) method, is a rapid way of assessing the continuity and integrity of concrete piled foundations.
Construction and installation of concrete piles and deep foundations is a challenging task. Problems may occur during the process, which in turn results in defects or anomalies such as: pile formation problems, concrete faults, and reinforcement installation issues. The resulting defects can negatively impact the durability and mechanical performance of the pile. Pile Integrity Tests are a group of non-destructive test methods that are used by geotechnical engineers and contractors to for quality control and quality assurance of deep foundations and piles.
Concrete piles and drilled shafts are an important category of foundations. Despite their relatively high cost, they become necessary when we want to transfer the loads of a a heavy superstructure (bridge, high rise building, etc.) to the lower layers of soil. In general, Pile Integrity refers to certain characteristics of deep foundations and piles such as:
Physical Dimensions of Pile (Length or Cross-Section);
Continuity of Pile (presence of Voids or Major Cracks); and
Consistency of the Pile Material.
3 سال پیش
در تاریخ 1399/12/11 منتشر شده
است.
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