鉄-石灰による斜面の安定処理

概要

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The vegetation method has been widely used in order to control the erosion on slope surface. In sandy soil slopes, however, the vegetation often cannot be sufficiently carried out, because in such soils, erosion occurs within ashort period after dissemination, Therefore, it is necessary to stabilize the slope surface even if temporarily until the vegetation has covered the surface. This paper reports a temporary stabilization method, in which the mixed solution of iron-salt and lime is sprayed on the slope surface. To examine the validity of the proposed method, some laboratory tests were conducted for sandy soils stabilized by the solution of iron-salt and calcium hydrate in various ratio and amouut. The results may be summarize as follows: 1. The appropriate mixture ratio of iron-salt and lime is about 7:3 2. The internal friction angle of soil increased by mixing with iron-salt and calcium hydrate. 3. The strength increment is considered to be caused by the cementing effect of iron oxide between the soil particles.
福山大学の論文