Comparative analysis of methods of pile-bearing capacity evaluation using CPT logs from tropical soils

Obeta, IN; Onyia, Michael E.; Obiekwe, D A

doi:10.17159/2309-8775/2018/v60n1a5

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Previous works have formulated theories with which to predict pile-bearing capacity using the results of CPT investigation [15,16,18,19]. The authors [15] gathered the theories and subjected them to comparison.…”

Section: Prefacementioning

confidence: 99%

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Bulletin of the Polish Academy of Sciences: Technical Sciences

Siemaszko¹,

Meyer²

2019

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This paper expands the M-K curve theory with examples of the most commonly mentioned pile-soil mechanics behaviours in the literature and their corresponding κ 2 variations. A brief introduction shows the history of the Meyer-Kowalow theory and its basic assumptions. This is followed by the relationship between in situ investigation CPT results, with parameters C 1 , C 2 , C t used to approximate the load-settlement curve according to the M-K theory. The Meyer-Kowalow curve satisfies asymptotic behaviour for small loads, where linear theory applies, and for limit loads, when pile displacement is out of control. Essential in the description are constant parameters C, which refer to the aggregated Winklers modulus, Ngr limit loads and k, which is crucial for static load test results. For this reason, the authors sought to calculate the κ value based upon soil mechanics principles. This article shows methods for checking statistical mathematical calculations, published earlier by Meyer using CPT investigations. It presents real case calculations and directions for future planned research.

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Section: Prefacementioning

confidence: 99%

“…The following is obtained: (17) qb -cone resistance representing soil under pile base The value of Dp was estimated using numerical methods and experimental results [26]. For practical engineering calculations, the following relationship was examined: (18) or its more general form:…”

Section: Prefacementioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Siemaszko¹,

Meyer²

2019

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Statistical Evaluation of CPT and CPTu Based Methods for Prediction of Axial Bearing Capacity of Piles

Heidari

Ghazavi

2020

Geotech Geol Eng

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The Comparison of Pile Bearing Capacity using 8 Direct Method based on CPT data in Surabaya Area

Sari

Wardani

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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This research focuses on comparing the pile bearing capacity resulting from eight different methods that have been developed and are widely used in design. The methods used are the Schmertmann (1978), LCPC (Bustamante & Gianeselli 1982 – Laboratoire Central des Ponts et Chausees), De Ruiter and Beringen (1979), Tumay and Fakhroo (1982), Price and Wardle (1982), Philipponnat (1980), Aoki and De Alencar (1975), and the Penpile methods (Clisby et al 1978). CPT data is used in this study because it is considered easier, faster and fast and relatively economical, and supplies continuous records with depth. Twenty different CPT data variations in the Surabaya area were used in this study. The piles used in this study are concrete piles with a diameter of 60 cm. The result of this research is that the bearing capacity using the Schmertmann method tends to be greater when compared to other methods while the Penpile method produces the lowest carrying capacity. The ratio of the minimum and maximum carrying capacity of the 8 methods used is up to 20%.

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Comparative analysis of methods of pile-bearing capacity evaluation using CPT logs from tropical soils

Abstract: He holds a Master's degree in soil mechanics and foundation engineering from the same university, and specialises in geotechnical engineering. He also runs a financial and engineering consulting firm.

Cited by 3 publications

References 6 publications

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bulletin of the Polish Academy of Sciences: Technical Sciences

Statistical Evaluation of CPT and CPTu Based Methods for Prediction of Axial Bearing Capacity of Piles

The Comparison of Pile Bearing Capacity using 8 Direct Method based on CPT data in Surabaya Area

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