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Experimental Study On Microcosmic Pore Fractal Characteristics Of Eco-material

Posted on:2006-11-19Degree:MasterType:Thesis
Country:ChinaCandidate:Z L HuFull Text:PDF
GTID:2132360152989169Subject:Geotechnical engineering
Abstract/Summary:PDF Full Text Request
Vegetation protection is a new measure advanced in recent year for slope protection. For the poor environment effect of traditional slope protection method at present, the research on geo-material combining slope protection and vegetation recovery together in the thesis. The pore structure of geo-material is measured by mercury injection test in this thesis, and the distributing characters of volume, surface area and pore diameter are analyzed. The studying methods and main results can be summarized as follows:(1) Soil is the basic factor for plant growing, the geo-material and protecting technique for erosion control of slope should follow the theory of soil, and offer the growing environment for plant on slope.(2) Based on fractal principles, the models of grain distribution, pore distribution and water prediction are established, which provide the theory foundation for analyzing porous dispersive media.(3) The pore structure of geo-material is measured by mercury injection test in this thesis. The test results show that eco-material possess abundant small pore, which offer space for hydration water. Based on the mercury injection test and SEM test, the main conclusion can be proved that the pore of eco-material is enough for water holding and plant growing.(4) In the thesis, fractal research is accomplished on the pore of geo-material with Menger sponge model. The results exhibit that their fractal dimension are different in different pore extents. Based on the inflexion of fractal curve, the extent of pore can be compartmentalized to four types, which is close to traditional expression, including big pore (d > 4 μm), medium pore (0.4 μm < d ≤4 μm), small pore (0.04 μm
Keywords/Search Tags:geo-material, erosion control, mercury injection test, pore, fractal model, fractal dimension
PDF Full Text Request
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