ASTM D4945-00 PDF

Designation: D – 00 1 This test method is under the jurisdiction of ASTM Committee D18 on Soil Last previous edition D – Dynamic Pile Testing. ASTM D Pile Driving Analyzer ®. Garland Likins, Pile Dynamics, Inc. PDCA Professor’s Institute. Garland Likins, Pile Dynamics. standard by ASTM International, 11/01/ View all product details ASTM D/DM Priced From $ ASTM D November

Author: Yolrajas Sakazahn
Country: Malawi
Language: English (Spanish)
Genre: Education
Published (Last): 1 September 2006
Pages: 413
PDF File Size: 12.27 Mb
ePub File Size: 17.17 Mb
ISBN: 789-8-99258-531-3
Downloads: 52200
Price: Free* [*Free Regsitration Required]
Uploader: Gukinos

Help Center Find new research papers in: The comparisons of load-settlement behaviors for dynamic and static load tests, shown in Figure 5Figure 6 and Figure 7indicate that the predicted settlement from dynamic and the measured settlement from static are generally consistent to a reasonable extent as reflected by the results of towers 7 and 8. For a specific precautionary statement, see Note 5. Enter the email address you signed up with and we’ll email you a reset link.

This formation is characterized with great variability in horizontal and vertical directions. The modern change, which is considered as one of the significant beneficial changes that have been made to the system since the last Irish survey in is the introduction of theodolite to measure the pile displacement during the impact [6], [7].

A schematic sketch of SIMBAT equipment and instrumentation is presented in Figure 2whereas a photograph of a complete set of the equipment is shown in Figure 3. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The side of the cap is instrumented with two strain gauges, two accelerometers and electronic theodolite target.

OUR SERVICES

The pairs of accelerometers and strain transducers are fixed to opposite sides of the tested pile, about at least one shaft diameter below the head, either by drilling sstm bolting directly to the pile or by welding mounting blocks to ensure a reasonably uniform stress field at the measuring elevation [5], [2].

The formation at this area is predominantly coralline deposits consisting of completely to slightly weathered coral reef limestone that contains marine shells and fossils. There are two known methods, based on wave propagation theory, for the analysis and interpretation of the dynamic pile load test.

  CUENTATRAPOS VICTOR CARVAJAL PDF

Three projects are residential tower buildings representing a part of the residential tower buildings complex of Red Sea state. Note High-strain dynamic testing requires a strain at qstm which is representative of a force in the pile having the same order of magnitude, or greater, than the ultimate capacity of the pile.

d4945–00

These sensors are connected to an instrument such as a pile driving analyzerthat d4945-000, processes and displays data and results [2], [3], [4].

The static pile load test is conducted at aatm strain and takes longer time than the dynamic pile load test, which is conducted at considerably higher strain [1]. Four case studies conducted in Red Sea state were taken. This test method is applicable to deep foundation units that function in a manner similar to foundation piles, regardless atsm their method of installation provided that they are receptive to high strain impact testing.

It can be concluded that the dynamic load pile test can be used for predicting pile capacity and pile integrity under proper care and it should be calibrated by at least one static test. This paper has been focused on this type of pile loading test. Q Mhaiskar, S.

Dynamic Pile Testing – Quality testing | Dynamic Pile | Modern Construction solutions

Q Figure 3: Solanki, Associte Professor, and Y. This will be achieved by taking four case studies, conducted in Red Sea State in eastern Sudan. D — 00″ 5- Richard T.

Click here to sign up. Essential preparations should be made before the test is carried out in the field. The measured force at the pile top is separated into components upward and downward.

The initial part of the load-settlement curves Figure 6: The two test results are consistent to a good extent. L Load KN 0 0 0. Rajagopal, Post Graduate Student, C.

It consists of estimating soil resistance and its distribution from force and velocity measurements obtained near the top of a foundation impacted by a hammer or drop weight. Q The main difference between this system and other dynamic load test systems is the using of 4d945-00 electronic scanning theodolite that records penetration for each blow and records real time elastic displacement [9].

  HIDROLOGIA SUBTERRANEA EMILIO CUSTODIO PDF

Link to Active This link will always route to the current Active version of the standard. The load should be applied axially on the pile. Therefore, it is strongly recommended to optimize the pile design for projects by determining the actual ultimate pile capacity, which may need to conduct pile test to failure or near to failure. Skip to main content.

Log In Sign Up. This shows a reasonable agreement between the two test results.

A series of hammer blows are made with the hammer drop height progressively increased and decreased [8]. Q Tower 7 The dynamic or total reaction, Rdy is calculated for each hammer blow and plotted versus cumulative penetration for the whole set of blows. Active view current version of standard. Q Figure 6-a: A pair of strain transducers receives the signals necessary to compute force, while measurements from a pair of accelerometers are integrated to yield velocity.

All tests were carried out on bored concrete piles. Referenced Documents purchase separately The documents listed below are atm within the subject standard but are not provided as part of the standard.

The cap must be cylindrical, smooth, well-reinforced and of good quality concrete.

ASTM D +dynamic bored pile test | Nguyen Huu Phuoc –

A pile cap, as an extension to the shaft head with the same diameter as the shaftshould be constructed. The dynamic load pile test, which is a simple quality control test offering a considerable savings of time and cost and requires less space, can be used for predicting pile capacity and pile integrity under proper care and it should be calibrated by at least one static test. Load-Settlement Curves for Tower No. This is very clear especially in the results of the pile of tower 1 project.

The impact produces a compressive wave that travels down the shaft of the foundation. Remember me on this computer. For mandrel driven piles, the mandrel may be instrumented in a similar way to a driven pile provided that the mandrel is constructed of a single d4945-0 with no joints.