| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive construction method capable of surely integrating different kinds of soil improvement bodies. <P>SOLUTION: A construction method for a soil improvement body integrates vertically layered different kinds of soil improvement bodies by constructing: a first soil improvement body 1 by improving a first ground G1 at a shallower side through a deep mixing method; a second soil improvement body 2 by improving a second ground G2 deeper than the first ground G1 through a vertical jet grout method; and an additional soil improvement section 3 by additionally improving a gap S, created on a boundary face between the first soil improvement body 1 and the second soil improvement body 2 due to settlement of the second soil improvement body 2, through the vertical jet grout method prescribed time after construction of the second soil improvement body 2 but before solidification of the second soil improvement body 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
