The experimental study and application of PPG pile in transmission line

doi:10.11930/j.issn.1004-9649.2012.4.29.5

Abstract

Abstract: Recommended as a new type of pile foundation by building specification published in 2008, pile post grounding (PPG) pile has characteristics of high reliability, large bearing capacity increase and economic efficiency. However, it is not used widely in transmission line building due to lack of related parameters. The PPG pile field pulling and horizontal bearing test were described in detail in order to get calculation formula and parameters. Experimental data show that PPG pile can improve bearing capacity by 30%~50% and reduce construction cost by 15%~35% compared with common pile under condition mainly dominated by uplift force. Parameters under various conditions, including bearing pressure, uplift and horizontal affect, are recommended to facilitate later project application.

Key words: PPG pile, intensity factor of shaft resistance, tower foundation, transmission line

CLC Number:

TM754

JIANG Hong-xi¹，LIN Qing-hai¹，CHEN Pei²，CAO Dan-jing¹， JIN Shu¹，SUN Zong-de¹，XIE Guang-cai¹. The experimental study and application of PPG pile in transmission line[J]. Electric Power, 2012, 45(4): 29-34.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2012.4.29.5

https://www.electricpower.com.cn/EN/Y2012/V45/I4/29

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