To enable an execution checking department such as a construction department in a head office to collectively perform centralized management for execution control, quality control, labor control, etc., in a construction site where a ground improving way using the deep mixing stabilization method is executed, accurately and rapidly.
At least a work quantity of an agitation head, the number of agitation, and a hardener addition volume at every excavation unit length are obtained by a control device 4 in respective construction sites and the data are stored in a memory media as execution data. Digital image data of an uncured core sample obtained by an early quality confirmation system 5 at site and compression strength data obtained by compression tests after the uncured core samples are accelerated to cure are obtained and these execution data, image data, compression strength data are transmitted from the construction sites to the construction department in the head office or the like through an internet or the like, these data are investigated by the department to perform the execution control, quality control, labor control, etc.
OTA KAZUYOSHI
MURAYAMA ATSUSHI
YAMANE TOSHIAKI
