Journal Published Online: 15 November 2007
Volume 31, Issue 3

Simple Shear Test for Interfaces Between Core and Filter Soils in Rock-Fill Dams

CODEN: GTJODJ

Abstract

The mechanical behavior of the interface between core and filter soils plays an important role in the construction of rock-filled dams with a composite earth core as a permeability barrier. This paper describes the use of a laminar-ring simple shear apparatus that was developed to test interface properties, a device that uses stacked steel rings to contain the specimen. A series of interface tests between core and filter soils were conducted using the developed apparatus. During the test, the normal stress was kept constant, and the shear stress and the relative displacement were measured. Furthermore, the deformation features of specimen were measured using LVDTs placed at each of the laminar-rings. Test results show that the shear strength of the interface is controlled by the weaker of the two individual soils.

Author Information

Zhang, Bingyin
Tsinghua University, Beijing, China
Yu, Yuzhen
Tsinghua University, Beijing, China
Fu, Jian
Tsinghua University, Beijing, China
Hu, Liming
Tsinghua University, Beijing, China
Pages: 9
Price: $25.00
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Details
Stock #: GTJ100859
ISSN: 0149-6115
DOI: 10.1520/GTJ100859