Effect of Frictionless Caps and Bases in the Cyclic Triaxial Test.
Abstract
The study reported herein is a continuation of an earlier preliminary study on the effect of frictionless ends on the cyclic strength of sands. The earlier study used laboratory data from static tests to develop a working hypothesis relating the effect of end restraint on dilation tendency, which in turn influenced the undrained static and the cyclic strength of soil. The study described herein continues with a detailed investigation of the effect of frictionless ends versus regular ends in the cyclic triaxial testing of various soils. The study involved performing some additional 130 cyclic triaxial tests on samples of the following soils, using both regular and frictionless ends: Monterey No. o sand, Sacramento River sand, L. A. Harbor sand, and undisturbed and remolded Champlain clay. These tests were performed under different conditions of density, anisotropic consolidation stress ratio, and cyclic frequency. Since the frictionless ends used in this study for the sands had short prongs in the centers to keep the samples from sliding off to the side, the possible effect of these prongs on the cyclic strength had to be defined. Therefore, a series of comparative tests were performed for each sand soil studied using regular ends with and without prongs. It was observed that prongs had no effect on the cyclic strength of these sand soils.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1977
- Accession Number
- ADA042041
Entities
People
- Frank J. Vernese
- Kenneth L. Lee
Organizations
- University of California, Los Angeles