Format:
iv, 13 Seiten
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Illustrationen
Series Statement:
CRREL Report 78-6
Content:
A new freezing mechanism, called segregation freezing, is proposed to explain the generation of the suction force that draws pore water up to the freezing surface of a growing ice lens. The segregation freezing temperature is derived by applying thermodynamics to a soil mechanics concept that distinguishes the effective pressure from the neutral pressure. The frost-heaving pressure is formulated in the solution of the differential equations of the simultaneous flow of heat and water, of which the segregation freezing temperature is one of the boundary conditions.
Note:
MAB0014.001: ZSP-201-78/6
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CONTENTS
Abstract
Preface
Nomenclature
Introduction
Segregation freezing
Analysis
Heat conduction in the nascent ice layer
Water flow in the unfrozen soil
Heat transfer in the unfrozen soil
Energy balance at the segregation-freezing front
Numerical computation
Literature cited
Appendix A. Essence of Portnov’s method
Appendix B. Frost-heaving without air available
In:
CRREL Report, 78-6
Language:
English
Keywords:
Forschungsbericht
URL:
https://hdl.handle.net/11681/9411
