Paper Title:
Pit Bearing Capacity Effect to Status of Soil Plug during Pile Driving in Ocean Engineering
  Abstract

Foundation piles of the offshore oil platforms in Bohai Bay are usually longer than 100m with a diameter larger than 2m. Thus, thoughtful drivability analysis has to be performed in the design stage because of the high cost and time limitation. It has been shown that to judge if the soil column inside the pile is fully plugged, which will make the pile behave as close-ended, will strongly influence the accuracy of drivability analysis. Engineering practice repeatedly indicates that the currently widely used methods for soil plug judgment often give incorrect results, leading the designers to make a wrong decision. It has been found that this problem is caused by the ignorance of the bearing capacity provided by the soil surrounding the pile. Based on the Terzaghi’s bearing capacity calculation method for deep foundation, a new approach for judging soil plug status is put forward, in which the surcharge effect has been considered and the dynamic effect coefficient is included. This approach has been applied to some practical engineering projects successfully, which may give more reasonable results than the currently used method.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
2530-2533
DOI
10.4028/www.scientific.net/AMR.250-253.2530
Citation
P. Zhu, S. W. Yan, "Pit Bearing Capacity Effect to Status of Soil Plug during Pile Driving in Ocean Engineering", Advanced Materials Research, Vols. 250-253, pp. 2530-2533, 2011
Online since
May 2011
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ze Liang Yao, Zhen Jian, Guo Liang Bai
Abstract:It is difficult and important to accurately calculate single pile ultimate bearing capacity during pile foundation design. Typical...
329
Authors: Lu Ping Yi, Jing Ji
Chapter 3: Mechanics Engineering and Applied Mechanics
Abstract:Research on the mechanical properties of variable diameter Independent pile under the combined action of wind, wave and flow is carried out....
861
Authors: Li Jun Zhou, Ziai Lu, Wen Juan Wang
Chapter 1: Geological and Geotechnical Engineering
Abstract:Pile foundation design has gradually used the super-long pile structure form with the port and offshore engineering construction developing...
471
Authors: Werasak Raongjant, Meng Jing
Chapter 1: Geological and Geotechnical Engineering
Abstract:Field test data from three instrumented large diameter bored piles in Pattaya city of Thailand were analyzed to study the behavior of load...
186
Authors: Xin Wang, Jian Chong Yang, Jian Hong Liang
Chapter 1: Geotechnical and Geological Engineering
Abstract:Three types of tip-structure include open-end, semi-closed and full close are tested to verify the feasibility of improving the ultimate...
283