Bearing Capacity of Precast Concrete Joint Micropile Foundations in Embedded Layers: Predictions from Dynamic and Static Load Tests according to ASTM Standards
Omarov A. Sarsembayeva A. Zhussupbekov A. Nurgozhina M. Tleulenova G. Yeleussinova A. Isakulov B.
July 2024Multidisciplinary Digital Publishing Institute (MDPI)
Infrastructures
2024#9Issue 7
In this paper, joint precast piles with a cross-section of 400 × 400 mm and a pin-joined connection were considered, and their interaction with the soil of Western Kazakhstan has been analyzed. The following methods were used: assessment of the bearing capacity using the static compression load test (SCLT by ASTM) method, interpretation of the field test data, and the dynamic loading test (DLT) method for driving precast concrete joint piles, including Pile Driving Analyzer (PDA by ASTM) and Control and Provisioning of Wireless Access Points (CAPWAP) methods. According to the results, the composite piles tested by the PDA (by ASTM) method differ by 15 percent compared to the static load method, while the difference between the dynamic DLT (by ASTM) method and the static load (by ASTM) method was only 7 percent. So, according to the results, the alternative dynamic method DLT (by ASTM) is very effective and more accurate compared to other existing methods.
dynamic load test , joint piles , Pile Driving Analyzer , static compression load test
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Department of Civil Engineering, L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Department of Civil Engineering and Geodesy, Shakarim University, Semey, 071412, Kazakhstan
Department of Civil Engineering and Design, Baishev University, Aktobe, 030000, Kazakhstan
Department of Civil Engineering
Department of Civil Engineering and Geodesy
Department of Civil Engineering and Design
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