Technical Report (In Japanese)
GROUND INVESTIGATIONS DURING RESTORATION OF TAKAMATSU CASTLE TOWER BASE AND ITS DEFORMATION ANALYSIS
2016 Volume 72 Issue 3 Pages 239-251
Details
2016 Volume 72 Issue 3 Pages 239-251
The stone walls of Takamatsu Castle tower base have experienced serious damages such as bulging and cracks. Therefore, restoring works were carried out from 2007 to 2011. To start the restoring work, first of all, soil properties and simple bearing capacity tests were carried out to understand the compaction condition of embankment soil. Another compaction test by penetrating wood piles into gravely sand ground was carried out by simple dynamic cone penetration tests. Next, vibration characteristics of stone wall were measured by microtremor before and after the restoration works. Finally, self weight and dynamic deformation analysis of the tower base was carried out using the discrete element method (DEM). All the results of above analysis were compared and verified with the measured deformation value.
