Abstract
In chemical grouting, it is difficult to evaluate the improved region. To solve this problem, authors proposed the evaluation method of improved region by resistivity tomography. For a practical application of this method, this study shows the validity of proposed evaluation by chemical grouting test in field The sodium-silicate grout was used in this test. The field test result showed that improved regions, which were evaluated by the proposed method using resistivity tomography, almost agreed with the solidified regions of boring samples. The test results described above ascertain the availability of the evaluation method of improved region by resistivity tomography in practical fields.
