Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 1999.10a
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- Pages.381-388
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- 1999
Characteristics of Driving Efficiency and Bearing Capacity for Non-welded Long Steel Pipe Pile Method
무용접 장대강관말뚝 공법의 항타 및 지지력 특성
Abstract
The existing methods for installation of long steel pipe pile have some uneconomical problems such as increase of installation cost and period due to the welding of two piles and removal of soil plug, and decrease of driving efficiency due to the increase of driving resistance by time effect during the welding of piles and removal of soil plug, etc. Thus, in this study, new installation method for long steel pipe pile is suggested to work out the existing problems, and calibration chamber tests are peformed to investigate both driving and economical efficiency for the suggested method. The test results showed that the new installation method has increase bearing capacity as well as reduce installation cost and period for long steel pipe piles as compared with existing methods.
Keywords
- long steel pipe pile;
- new installation method;
- bearing capacity;
- driving efficiency;
- economical efficiency