Humidity and osmotic suction-controlled box

Abstract

Described herein are systems, apparatuses and methods for the design and use of a suction-controlled box for the measurement of stress-dependent soil and water characteristics, shear strength, volume changes and consolidation characteristics from a single unsaturated soil specimen. The suction-controlled box can include a suction control part and a mechanical loading part, which can apply various suctions and mechanical loadings to test a specimen for a full range of suctions. The suction-controlled box can also include a helical water compartment that can flush diffused air bubbles.

Description

[0001] related application

[0002] This patent application claims priority from the US Provisional Patent Application. The application number of this US provisional patent application is 61 / 381645, the application date is September 10, 2010, and the title of the invention is "unsaturated soil comprehensive tester for humidity and osmotic suction control". The entire disclosure of this US Provisional Patent Application is incorporated by reference into this document. technical field

[0003] This invention relates generally to the measurement of mechanical and soil-water properties of saturated and unsaturated soils, and more particularly to the design and use of an unsaturated soil tester for suction control to aid in these measurements. Background technique

[0004] Accurate testing and measurement of the mechanical and soil-water properties of saturated and unsaturated soils is important in a variety of projects, which can include various geotechnical and environmental g...

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