Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method

A novel test method for analyzing the influence of stress path and roughness of structure on the strength characteristics of saturated sand-structure interface by using triaxial apparatus is presented. By making a triaxial specimen with a slope structure with a certain inclination angle, the soil sl...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of Journal of Shanghai Jiao Tong University 2021
Materias:	triaxial test interface roughness stress path friction angle Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989
Acceso en línea:	https://doaj.org/article/b97a6e294b1d471a8b7df6cefa3faaf7
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b97a6e294b1d471a8b7df6cefa3faaf7
record_format	dspace
spelling	oai:doaj.org-article:b97a6e294b1d471a8b7df6cefa3faaf72021-12-03T02:59:23ZStrength Properties of Saturated Sand-Structure Interface by Triaxial Test Method1006-246710.16183/j.cnki.jsjtu.2020.299https://doaj.org/article/b97a6e294b1d471a8b7df6cefa3faaf72021-11-01T00:00:00Zhttp://xuebao.sjtu.edu.cn/article/2021/1006-2467/1006-2467-55-11-1371.shtmlhttps://doaj.org/toc/1006-2467A novel test method for analyzing the influence of stress path and roughness of structure on the strength characteristics of saturated sand-structure interface by using triaxial apparatus is presented. By making a triaxial specimen with a slope structure with a certain inclination angle, the soil slides along the preset failure surface during the shearing process, and the slope surface roughness of the structure can be controlled and adjusted. A triaxial instrument is used to control the changes in axial pressure,confining pressure to achieve loading in different stress paths. The soil slides along the structure surface with a certain angle during shearing when preformed failure surface exists. The roughness of the structure can be controlled and adjusted. The triaxial apparatus is used to control the confining pressure change of the sample to realize loading under different drainage conditions and stress paths. To verify the effectiveness of the method, direct shear test and triaxial shear tests are carried out on the specimen composed of Fujian sand and steel structures with different roughness and different stress paths. The results show that at the beginning of sliding, the friction angle of the interface in the interfacial constant normal stress path is smaller than that in the conventional shear path. Under smooth conditions, the interface friction angle obtained by direct shear test is 30% to 40% lower than that obtained by triaxial test. Under rough conditions, the interface friction angle obtained by direct shear test is slightly smaller than that obtained by triaxial test, and closer to the friction angle in normal stress shear paths.LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA XiaoheEditorial Office of Journal of Shanghai Jiao Tong Universityarticletriaxial testinterfaceroughnessstress pathfriction angleEngineering (General). Civil engineering (General)TA1-2040Chemical engineeringTP155-156Naval architecture. Shipbuilding. Marine engineeringVM1-989ZHShanghai Jiaotong Daxue xuebao, Vol 55, Iss 11, Pp 1371-1379 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	triaxial test interface roughness stress path friction angle Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989
spellingShingle	triaxial test interface roughness stress path friction angle Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989 LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
description	A novel test method for analyzing the influence of stress path and roughness of structure on the strength characteristics of saturated sand-structure interface by using triaxial apparatus is presented. By making a triaxial specimen with a slope structure with a certain inclination angle, the soil slides along the preset failure surface during the shearing process, and the slope surface roughness of the structure can be controlled and adjusted. A triaxial instrument is used to control the changes in axial pressure,confining pressure to achieve loading in different stress paths. The soil slides along the structure surface with a certain angle during shearing when preformed failure surface exists. The roughness of the structure can be controlled and adjusted. The triaxial apparatus is used to control the confining pressure change of the sample to realize loading under different drainage conditions and stress paths. To verify the effectiveness of the method, direct shear test and triaxial shear tests are carried out on the specimen composed of Fujian sand and steel structures with different roughness and different stress paths. The results show that at the beginning of sliding, the friction angle of the interface in the interfacial constant normal stress path is smaller than that in the conventional shear path. Under smooth conditions, the interface friction angle obtained by direct shear test is 30% to 40% lower than that obtained by triaxial test. Under rough conditions, the interface friction angle obtained by direct shear test is slightly smaller than that obtained by triaxial test, and closer to the friction angle in normal stress shear paths.
format	article
author	LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe
author_facet	LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe
author_sort	LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe
title	Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
title_short	Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
title_full	Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
title_fullStr	Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
title_full_unstemmed	Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
title_sort	strength properties of saturated sand-structure interface by triaxial test method
publisher	Editorial Office of Journal of Shanghai Jiao Tong University
publishDate	2021
url	https://doaj.org/article/b97a6e294b1d471a8b7df6cefa3faaf7
work_keys_str_mv	AT liushiaoliaochencongchenjinjianyeguanlinxiaxiaohe strengthpropertiesofsaturatedsandstructureinterfacebytriaxialtestmethod
_version_	1718373952609320960

Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method

Ejemplares similares