Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province

© 2016 Taylor & Francis Group, London. Pile driving formulas, which have been proposed by many researchers, are widely used to predict and control the load carrying capacity of the driven piles. However, efficiency of each formula in predicting the capacity mainly depends on subsoil properties...

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Main Authors: S. Thongmunee, A. Thongchai
Format: Conference Proceeding
Published: 2018
Subjects:
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85016168433&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55655
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-556552018-09-05T02:59:20Z Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province S. Thongmunee A. Thongchai Earth and Planetary Sciences © 2016 Taylor & Francis Group, London. Pile driving formulas, which have been proposed by many researchers, are widely used to predict and control the load carrying capacity of the driven piles. However, efficiency of each formula in predicting the capacity mainly depends on subsoil properties, pile installation data and adopted empirical parameters. In other words, when construction area is different, accuracy of each formula will be changed. The aim of this study is to investigate the appropriate pile driving formula for the area of Chiang Mai province, the largest city in northern Thailand, where the number of construction projects has been increasing rapidly for the last 10 years. In this study, the authors have collected the construction information on concrete driven piles including soil boring log, pile information, installation data and its Dynamic Load Test (DLT). The information was obtained from 7 construction projects around Chiang Mai downtown. Typical soil horizon in all construction sites was found to be alternating layer of stiff silty clay (CL) interbedded with clayey or silty sand (SM or SC). More than 7000 driven piles were installed, and dynamic load tests were performed on 69 selected driven piles in all project. All of the driven pile is square solid concrete pile. Cross section of the driven pile varies from 0.26 × 0.26 m to 0.45 × 0.45 m. Length of the pile varies from 9 to 28 m. Seven pile driving formulas were chosen for predicting the load carrying capacity of the selected DLT piles. The correlation between the predicted capacities and its DLT results were then tested to conduct reliability analysis of the pile driving formulas. The result showed that Gate formula is most reliable formula, based on the higher of R2 value compared with others for Chiang Mai subsoil. 2018-09-05T02:59:20Z 2018-09-05T02:59:20Z 2016-01-01 Conference Proceeding 2-s2.0-85016168433 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85016168433&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/55655
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Earth and Planetary Sciences
spellingShingle Earth and Planetary Sciences
S. Thongmunee
A. Thongchai
Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province
description © 2016 Taylor & Francis Group, London. Pile driving formulas, which have been proposed by many researchers, are widely used to predict and control the load carrying capacity of the driven piles. However, efficiency of each formula in predicting the capacity mainly depends on subsoil properties, pile installation data and adopted empirical parameters. In other words, when construction area is different, accuracy of each formula will be changed. The aim of this study is to investigate the appropriate pile driving formula for the area of Chiang Mai province, the largest city in northern Thailand, where the number of construction projects has been increasing rapidly for the last 10 years. In this study, the authors have collected the construction information on concrete driven piles including soil boring log, pile information, installation data and its Dynamic Load Test (DLT). The information was obtained from 7 construction projects around Chiang Mai downtown. Typical soil horizon in all construction sites was found to be alternating layer of stiff silty clay (CL) interbedded with clayey or silty sand (SM or SC). More than 7000 driven piles were installed, and dynamic load tests were performed on 69 selected driven piles in all project. All of the driven pile is square solid concrete pile. Cross section of the driven pile varies from 0.26 × 0.26 m to 0.45 × 0.45 m. Length of the pile varies from 9 to 28 m. Seven pile driving formulas were chosen for predicting the load carrying capacity of the selected DLT piles. The correlation between the predicted capacities and its DLT results were then tested to conduct reliability analysis of the pile driving formulas. The result showed that Gate formula is most reliable formula, based on the higher of R2 value compared with others for Chiang Mai subsoil.
format Conference Proceeding
author S. Thongmunee
A. Thongchai
author_facet S. Thongmunee
A. Thongchai
author_sort S. Thongmunee
title Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province
title_short Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province
title_full Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province
title_fullStr Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province
title_full_unstemmed Reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: Case study in Chiang Mai Province
title_sort reliability analysis of pile driving formula for concrete driven piles in stiff soil layer: case study in chiang mai province
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85016168433&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55655
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