JP2825189B2 - Pipe burial method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pipe installed in a pipe groove.
It is related to the method of burial .

[0002]

2. Description of the Related Art For example, electric wires, communication lines, optical fibers, etc.
Is protected by a cladding tube and disposed in a pipe groove.
Sediment is buried in the pipe groove where the cladding tube is installed.
Recently, in order to improve the ability of sediment to
A flow for injecting a slurry mixed with sand and water into the pipe groove
Chemical method that has been developed. Conventionally, as shown in FIG. 5, in order to prepare a slurry by mixing earth and sand P and water W, a container (2
3) is filled with earth and sand P, water W is further injected from a hose (24), and the earth and sand P and water W are mixed by a stirrer (25) to form a slurry.

[0003]

Is sufficient capacity required to house the required amount of the slurry as a container (23) is however the method [0006], therefore the container (23) becomes large, and the container (23 ), There is a problem that constant stirring is required so that the sediment P and the water W do not separate from each other.

[0004]

[Means for Solving the Problems] The present invention provides a means for solving the above-mentioned conventional problems, in which a pipe (3) is inserted into a pipe groove (2).
Drainpipe porous to (3A) in terms of installed and taken out one by tank unloading means (9) filler is filled in the powder (4) from the outlet (11, 12) (13, 14)ゝwater Mixing means (13, 14)
The tubing groove slurry (22) was made by mixing with water adjusted by
(2) injected into the water in the slurry (22) is the discharge pipe (3A)
It is intended to provide a pipe burial method that eliminates from pipes .

[0005]

[Function] Filled in the tank (9)Filler powder
(4) is the outlet of tank (9)(11,12)Take-out means(13,1
Four)The liquid mixing means(13,14)
BywaterTo form a slurry (22).The slurry
ー (22) Is injected into the pipe groove (2) and set in the pipe groove (2).
Around the placed pipe (3) Is filled almost uniformly,
The water in the lee (22) is drained from the drain (3A).

[0006]

EXAMPLES In actual施例are shown in FIGS. 1 to 3, a road
A piping groove (2) is provided on the side of (1).
(2) is a cladding tube that is a flexible corrugated tube (3)
And a porous drain pipe (3A) is installed. The cladding tube (3)
Inside, electric wires, communication lines, optical fibers, etc. are arranged and protected , and a plurality of cladding tubes (3) are connected to the nozzle (6) as shown in FIG.
Focused by. FIG. 2 shows a slurry filling truck (7), which has a water tank.
(8) and two sand tanks (9,10)
(9,10) screw feeder (1
3,14) are provided.

[0007] From the water tank (8), valves (15A, 15B)
The water supply channels (16, 17) are connected to the screw feeders (1
3,14) and the screw feeder (13,14)
Is driven by a motor (19) powered by a generator (18). Flexible tubes (20, 21) are connected to the screw feeders (13, 14).

In the above configuration, the screw feeder
(13, 14) to remove the sand (4) in the sand tank (9, 10) from the lower end exit (11, 12), and
4) mixed with water from the water supply channel (16, 17)
When it is poured into the pipe groove (2) as shown in FIG. 1 as (2), the fluid slurry (22) is densely filled between the pipes (3).
Then, the water in the slurry (22) is discharged from the drain pipe (3A). At this time, the mixing ratio of the sand (4) and water is usually 20:80 to 2
5:75 capacity ratio. Further, a surfactant or the like for improving fluidity may be added to water.

FIG. 4 shows another embodiment of the present invention. In the present embodiment, the lower end outlet (11) of the sand tank (9)
Is provided with a rocker valve (26), and the sand (4) of the sand tank (9) taken out by the rocker valve (26) falls into the small mixing tank (27), and the small mixing tank (27). In 27), water is mixed with water from the water supply passage (16) by a stirrer (28) to prepare a slurry, and the slurry is discharged through a valve (29).
Emitted from (30). As described above, in the present embodiment, the rocker valve (26) as the takeout means and the small mixing tank (27) as the mixing means are separate.

In the present invention, various kinds of filler powder, such as cement and ceramic powder, are included in addition to sand.

[0011]

Therefore, in the present invention, it is possible to use a tank having a capacity sufficient to contain an amount of filler powder necessary for preparing a slurry, and it is possible to use the tank in a fluidization method site.
The slurry can be prepared in a compact Te. The filler powder from the slurry is mixed with the columnゝwater taken from the tank
Powder and water do not separate.

[Brief description of the drawings]

 1 to 3 show one embodiment of the present invention.

Fig. 1 Cross-sectional view of piping groove

FIG. 2 is an explanatory view of a state of slurry filling.

FIG. 3 is a schematic sectional view of a sand tank.

FIG. 4 is an explanatory view of a sand tank according to another embodiment.

FIG. 5 is an explanatory view of a conventional example.

[Description of Signs] 2 Piping groove 3 Clad pipe (pipe) 3A Drain pipe 4 Sand (filler powder) 9,10 Sand tank 13,14 Screw feeder (extraction means, mixed
22 ) Slurry 26 Rocker valve (extraction means) 27 Small mixing tank (mixing means)

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tadanobu Suzuki 13 Aron Kasei Co., Ltd., Meinan Plant, 1 Minami-ku, Minato-ku, Nagoya City, Aichi Prefecture (56) References JP-A-3-287909 (JP, A) JP-A-1-312118 (JP, A) JP-A-63-176539 (JP, A) JP-A-2-160028 (JP, A) JP-A-60-135215 (JP, A) (58) Fields investigated (Int.Cl. ⁶ , DB name) F16L 1/02 B28C 5/06

Claims (1)

(57) [Claims] 1. A pipe and a porous drainage pipe are installed in a pipe groove.
Above, was injected slurry prepared by mixing with water by extraction oneゝwater mixing means by retrieving means a filler powder which is filled into the tank from the outlet into the pipe groove, said slide
Tube water in rie, characterized in that the excluded from drainage tube
Burial method