深厚软土区有轨电车桩板结构路基沉降变形离心模型试验

doi:10.13722/j.cnki.jrme.2021.1172

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Abstract The tram pile plate structure，a new embankment structure，is proposed in recent years. In order to achieve the purpose of bearing the upper load by the piles and soil between the piles，friction piles with sparse arrangement are used in the embankment. The embankment settlement and soil displacement field of the tram pile plate structure are studied by centrifugal model test. The results show that the tram embankment settlement meets the requirements of the code. The upper load is shared by piles and soil between piles，and there is no void under the plate. Pile length and pile spacing have a significant effect on embankment settlement. The embankment settlement increases with the increase of pile spacing，while it decreases with the increase of pile length. The embankment settlement increases gradually at the initial stage of operation. In the later stage of operation，the increasing degree of embankment settlement is small，and the embankment settlement tends to be stable. The settlement of the soil around pile decreases gradually along the depth，and there is an inflection point near the pile end. The relative displacement of pile-soil does not have a negative value and gradually increases with the depth. The settlements of the soil on pile tip and under plate are the same. There is differential settlement between the soil around the pile and in the middle of the span. The greater the depth，the more obvious the difference.

Key words： foundations pile plate structure embankment centrifugal model test sparse pile pile side soil relative displacement

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	Articles by authors
	WANG Changdan1
	2
	CHEN Kaixiang1
	2
	SHAN Yao1
	2
	ZHOU Shunhua1
	2
	WANG Binglong1
	2
	LI Liang1
	2

Cite this article:

WANG Changdan1,2,CHEN Kaixiang1, et al. Centrifugal test on settlement of tram pile plate structure embankment in deep soft area[J]. , 2022, 41(S2): 3444-3452.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.1172 OR https://rockmech.whrsm.ac.cn/EN/Y2022/V41/IS2/3444

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