一种大型桩土界面直剪试验装置的研制与应用

doi:10.13722/j.cnki.jrme.2017.0904

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Abstract

A large-scale constant stiffness shear test apparatus of pile-soil interface was designed and developed to investigate the mechanical characteristics of pile-soil interface in clayey soil. Ideal cluster spring loading system was adopted on normal loading direction to generate the desired load. In the normal direction，the boundary condition including the constant normal stiffness could be imposed，while in the tangential directions，the displacement path，static upper shear box，linear and reciprocating motion of lower upper shear box，could be imposed. It was shown that this apparatus could be employed to represent the response of clayey soil and structure interface under various loading paths and simulate shear process of pile-soil interface. The results of shear stress-shear strain curves obtained under different interface roughness，shear rates and water content of clayey soil，are consistent with the existing conclusion of shear mechanical characteristics factors affecting.

Key words： soil mechanics pile-soil interface clayey soil direct shear tests test apparatus mechanical characteristics

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	Articles by authors
	WANG Yonghong1
	2
	ZHANG Mingyi1
	2
	LIU Junwei1
	2
	BAI Xiaoyu1
	2

Cite this article:

WANG Yonghong1,2,ZHANG Mingyi1, et al. Development and application of a large-scale shear test apparatus of pile-soil interface[J]. , 2018, 37(S1): 3714-3721.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0904 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS1/3714

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