| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve efficiency in installing improved soil to the sea bottom, to shorten a construction period and to reduce costs by continuously performing mixed installation of dredge soil and slag of a soil stabilizer. <P>SOLUTION: Dredge soil and slag of a soil stabilizer are weighed, respectively, and put into a hopper 1 in an optimal mixing ratio. In the middle of a pressure-feed pipe 3, enlarged diameter parts 31 are provided at intervals in such a manner as to violently corrugate a sediment flow by cross-sectional changes in the enlarged diameter parts, thereby surely mixing the dredge soil and the slag. Compressed air is blown into the enlarged diameter parts from pressure air holes of which blow-out directions of pressure air to be blown out to the enlarged diameter parts are made different from each other, in such a manner as to largely corrugate the sediment flow, thereby making improved soil uniform, and mixed soil is installed on the sea bottom by a tremie pipe. <P>COPYRIGHT: (C)2013,JPO&INPIT |
