The ground reinforcement effective decision method due to 4 D electric resistivity monitoring

摘要

Topic When you can do the ground reinforcement for the rock cavern with cement mortar grouting construction method, offer the new method where extending to the entire reinforcement territory in little cost, it can decide the ground reinforcement effect effectively.SolutionsThis invention being the method of deciding the ground reinforcement effect of the rock cavern due to cement mortar grouting construction method, before the mortar grouting measures the electric resistivity for the reinforcement territory, (a) the step which provides the course of traverse (Survey Line) which can measure long term electric resistivity in the ground reinforcement territory and, (b) making use of the above-mentioned course of traverse accomplishing 3 dimensional electric resistivity reverse operation making use of the measurement result, the mortar grouting middle or after the mortar grouting, measuring electric resistivity each specific classified by state the step which to image it converts 3 dimensional electric resistivity distribution for the reinforcement territory and, (c) making use of the above-mentioned course of traverseIt does, accomplishing 3 dimensional electric resistivity reverse operation making use of the measurement result, the step which to image it converts 3 dimensional electric resistivity distribution for the reinforcement territory and, (d) it calculates the change ratio of the electric resistivity which was measured with the above-mentioned (b) step and the electric resistivity which was measured with the above-mentioned (c) step, to image converting 3 dimensional electric resistivity distribution for the reinforcement territory, making use of this the step which decides the ground reinforcement effect and, including, it can do. Selective figure It is not