Development of Non-erosive Soil Materials. Development of artificial soil for vegetative slope (1st Report).:Development of artificial soil for vegetative slope (1st Report)

概要

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In order to realize the vegetative slope in open-cut mining, non-erosive soil materials have been developed in this study.<BR>The non-erosive soil was compounded from the tailings of cyanide leaching at the Kushikino gold mine through the following two processes ;(1) a mixture of the tailings, water and portland cement was crushed under 12 mesh after the primary generation of cohesive strength for a specified time, (2) the crushed products were applied to the test of the secondary generation of cohesive strength after charging in a pot and consolidating under various compressive stresses.<BR>The structure of the non-erosive soil is composed of soil particles and voids surrounding the particles. The soil particles and voids are formed as the results of the primary generation of cohesive strength before the crushing and the secondary generation of cohesive strength after the consolidating respectively. The soil properties required to satisfy the vegetative conditions result from such agglomerate structure of the soil particles. From the facts described above it is concluded that the vegetative and the non-erosive conditions of the soil are satisfied simultaneously by controlling the curing and solidifying time from mixing to crushing and the secondary generation of cohesive strength.
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