한국농공학회:학술대회논문집 (Proceedings of the Korean Society of Agricultural Engineers Conference)
- 한국농공학회 2005년도 학술발표논문집
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- Pages.361-366
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- 2005
불포화토의 전단 및 함수특성곡선
The shear strength and soil water characteristic curve for Unsaturated Soils
- 발행 : 2005.10.28
초록
Since most soils exist above the ground water table, negative pore pressure exist in unsaturated soils. Negative pore water pressure in unsaturated soil affects the soil structure and degree of saturation and it is important for accurate evaluation of unsaturate flow and behavior. This negative pore pressure is called a matric suction which causes an increased shear strength. Therefore, it is required that the effect of increase in the shear strength should be included in a geotechnical analysis. From the test result, the influence of net confining pressure and matric suction on the shear strength was analyzed and strength parameter was increased with matric suction increase and a unliner relationship was found to relate matric suction and shear strength.
키워드