A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water Migration in Expansive Soils
The development of sites in arid climates generally results in an increase in water content in the soil profile due primarily to two factors. One factor is irrigation at the surface that introduces water into the soil. A second factor is the construction of impermeable surfaces such as roadways and structures that stop or reduce the evapotranspiration of water from the surface. Additional sources of water include broken pipes, leaky sewers, off‐site sources, storage of snow, and others. This chapter introduces the terms, full wetting and partial wetting. It also introduces the general overview of the fundamental theory regarding water flow in unsaturated soils. The chapter discusses the depth and degree of wetting of the soil that is contributing to heave, and presents the determination of final water content profiles for various conditions and methods of analysis. It also discusses the challenges in water migration modeling, particularly for expansive soils.
Water Migration in Expansive Soils
The development of sites in arid climates generally results in an increase in water content in the soil profile due primarily to two factors. One factor is irrigation at the surface that introduces water into the soil. A second factor is the construction of impermeable surfaces such as roadways and structures that stop or reduce the evapotranspiration of water from the surface. Additional sources of water include broken pipes, leaky sewers, off‐site sources, storage of snow, and others. This chapter introduces the terms, full wetting and partial wetting. It also introduces the general overview of the fundamental theory regarding water flow in unsaturated soils. The chapter discusses the depth and degree of wetting of the soil that is contributing to heave, and presents the determination of final water content profiles for various conditions and methods of analysis. It also discusses the challenges in water migration modeling, particularly for expansive soils.
Water Migration in Expansive Soils
Nelson, John D. (author) / Chao, Kuo Chieh (Geoff) (author) / Overton, Daniel D. (author) / Nelson, Erik J. (author)
2015-02-17
30 pages
Article/Chapter (Book)
Electronic Resource
English
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