| 摘要 |
A P.M.G construction method and a construction apparatus for the same are provided to make mud of the hole solidified and to prevent the ground subsidence efficiently by supplying and distributing a solidification agent in the hole through a solidification agent exclusive spraying pipe. Various data is collected, the data including distance from a work site, and position information between a starting area and an arrival area. A starting hole and an arrival hole with a predetermined size are formed by excavating the starting and arrival areas based on the work design. Mixed liquid of water and bentonite is supplied and distributed through high pressure through a hollow in a rod, and a pilot borehole passing through between the starting and arrival holes is formed. The hole is expanded by supplying and distributing the mixed liquid. Connecting hooks are connected by a wire, and a buried objective pipe is pulled toward the starting hole. A solidification agent exclusive spraying pipe is connected with a front end of the rod to supply the solidification agent into the hole through the solidification agent spraying hole. |
