| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for confirming the shape of the ground improved by chemical grouting for confirming the shape of the chemical grouted ground and easily examining whether the ground has predetermined strength by measuring the specific resistance value of the ground by an EM survey in improving the ground by chemical grouting. SOLUTION: The specific resistance value of the ground before chemical grouting is measured by the EM survey, and the specific resistance value of the improved ground after the lapse of the predetermined number of days after chemical grouting is measured in the same method. A sample of the improved ground is extracted to determine the correlation between the liquefaction strength and specific resistance value of the ground, and a range not more than the specific resistance value corresponding to the required liquefaction strength is evaluated as the shape of the chemical grouted ground. COPYRIGHT: (C)2005,JPO&NCIPI
|
