| 摘要 |
PURPOSE:To facilitate execution and management, by providing an addition rate computing part for a curing material and/or an agitation rate computing part for a ground and a curing material. CONSTITUTION:An addition amount per unit time of a curing material is detected by an addition amount detector 1. From a product of an improvement sectional area calculated by a sectional area computing part 5 and a feed speed detected by a speed detector 2, an improvement volume per unit time is determined by a volume computing part 6. An amount of an curing material added to an improvement volume, being determined by dividing an addition amount per unit time of a curing material by an improvement volume per unit time, i.e., an addition rate of the curing material is determined by an addition rate computing part 7. Further, the number of revolutions per unit improvement length, i.e., an agitation rate, which is a value obtained by dividing the number of revolutions of an agitator, detected by a number of revolutions detector 3, by a feed speed detected by the feed speed detector 2 is determined by an agitation rate computing part 8. |
