| 摘要 |
PROBLEM TO BE SOLVED: To prevent a packer grout material from being solidified while it is filled into only a lower part in a packer, prevent it from being not grouted up to an upper part in the packer, and fill the packer grout material in all the parts of one packer securely. SOLUTION: This chemical grouting device is constituted in such a way that it is composed of a grouting external pipe 1 provided with the packers 4 which are a plurality of bag bodies having water permeability and swelling to become larger than digged hole diameter at an interval in the axial direction and a grouting internal pipe 2 insertable into the grouting external pipe 1, solidifying material is filled into the bag bodies from the grouting internal pipe 2 to swell the bag bodies, consolidate peripheral ground, and form the packers 4, and solidifying material is grouted between the packers 4 to solidify a predetermined region by grouting. The packers 4 are a plurality of bag bodies 4a, 4b whose at least intermediate parts are tightened by a tightening member 12 and which are divided using a tightening part as boundary. COPYRIGHT: (C)2006,JPO&NCIPI
|
