Estimation of Pile Set-up Effect in Clay Using Direct Shear Test

被引：1

作者：

Yu, Feng ^{[1
]}

Kou, Hai-lei ^{[2
]}

Gou, Yao-bo ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Inst Fdn & Struct Technol, Hangzhou 310018, Zhejiang, Peoples R China

[2] Ocean Univ China, Coll Engn, Qingdao 266100, Shandong, Peoples R China

来源：

PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: ADVANCES IN SOIL DYNAMICS AND FOUNDATION ENGINEERING | 2018年

关键词：

Direct shear test; Pile capacity; Time effect; Silty clay; Interface shear; DISPLACEMENT PILES; PIPE PILES; DRIVEN; CAPACITY; BEHAVIOR;

D O I：

10.1007/978-981-13-0131-5_51

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A series of large-scale direct shear tests for the study of interface behavior between concrete piles and silty clay are presented in this paper. Concrete platform was used to model concrete pile in the test. The shear forces and displacements were measured. The distribution of soil partials of silty clay before and after shearing was also compared using single-lens-reflex digital camera. Test results show that the shear forces between concrete platform and soil samples are closely related to the vertical loading implemented on the soil sample and the interval times. The larger the vertical loading, the larger the shear forces. With the increase of interval times, the shear forces between concrete platform and soil samples gradually increased. It is also indicated that the vertical loading has little effect on the time effect of shear forces. As the interval time lasts, the particles of soil samples gradually upheaved and the deformation area increased. Based on the predicted three-phase model with respect to the log of time, the time points of 1.0 day and 109 days can be taken as the first and second time points respectively in this test.

引用

页码：464 / 477

页数：14

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