Abstract
Peat is a kind of soil with a very low bearing capacity and high compressibility. Generally, a building construction on peat is done by using a wooden pile foundation. However, the length of the wooden piles is sometimes limited and causes the friction strength between the soil and wooden piles to became suboptimal. In order to enhance the bearing capacity of the foundation, the cross-sectional area of the foundation needs to be enlarged. One of the solutions for this problem is through helical piles. There are two methods to determine the helical pile`s bearing capacity, i.e. individual bearing and cylindrical shear methods. In this paper, bearing capacity prediction was discussed. A foundation load test was thoroughly done by a constant rate of penetration. This test consisted of compression and tension tests. The result was analyzed by individual bearing and cylindrical shear methods and next compared to each other. The result of the analysis has shown that the individual bearing method was more suitable in predicting helical piles’ bearing capacity since it produced the lowest error rate, with a magnitude of 21,31%.
Highlights
The texture of peat is dominated by voids and large amounts of water
According to figure 6, it can be observed that the shear strength of the peat was between 3,00 to 5,25 kPa when the samples were loaded with compressive action
4.1 Comparisons between helical pile foundation, wooden pile, and non-helical pile foundation In figure 8, it is shown that the installation of the helical plate significantly enhanced the bearing capacity of the foundation
Summary
The texture of peat is dominated by voids and large amounts of water. Due to the high-water content, peat can be categorized as very soft soil with a very low bearing capacity. In order to overcome these problems, lightweight building constructions on peat are generally done either by wooden piles or conventional piles. To keep it economical, pile foundations were embedded without reaching the bed rock layer. The compressive bearing capacity of the foundations rely on the friction between the soil layer and foundations, which make the foundation’s bearing capacity not optimal. One of the ways to enhance the foundation’s bearing capacity is by enlarging the cross-sectional area of foundations, using helical plate installation on the edge of pile foundations
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
