JPH07133609A - Closed conduit forming method and its device - Google Patents

Abstract

PURPOSE:To level the surface of soil raised up due to an opening of a groove for a canal without demolishing the groove for a canal and a drilled hole for leading a pipe in. CONSTITUTION:The surface of soil is excavated by a raking member 19, a groove for a canal is opened by a vertical plate 21 along the excavated groove, and concurrently a drilled hole for leading a pipe in is formed by a drilling bullet 23 located at the lower end of the vertical plate 21. The surface of soil located just above the drilling bullet 23 at both the sides of the vertical plate 21 is rolled by a roller 26. A pipe 24 is then led in a drilled hole roughly in a complete round shape thus formed as above, and canal material is then filled in the groove for a canal by a canal material filling means 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directly applicable to a method for forming an underdrain and a method for forming this underdrain for forming a hydrophobic groove and a perforation for introducing a pipe, and at the same time rolling the soil surface of the hydrophobic groove. The present invention relates to a culvert forming device used.

[0002]

2. Description of the Related Art Heretofore, various techniques have been proposed for forming a culvert in the soil of a golf course, a ground or the like, and improving the drainage property of the soil in the culvert.

For example, in Japanese Unexamined Patent Publication No. 3-54823, a standing plate attached to the rear part of a towing machine and a bullet for punching provided at the lower end of the standing plate are set in the soil, and the above-mentioned towing machine is used. When the punching machine is towed, the standing plate cuts the soil to form a groove for hydrophobicity, and at the same time, a drawing hole is formed by the bullet for boring, and a tubular body such as a pipe connected to the bullet for boring is described above. There is disclosed a technique in which a hole is automatically drawn into a hole to be installed, and thereafter, the hydrophobic groove and the hole for drawing are filled with a hydrophobic material to form a culvert.

[0004]

By the way, as shown in FIG. 6, when the groove for hydrophobic 2 and the hole for drawing 3 are formed in the soil 1 by the standing plate of the boring machine and the bullet for boring, the surface 1a of the soil 1 is formed. Since the raised portion 4 is formed on the ground, generally, after filling the hydrophobic groove 2 and the drawing hole 3 with the hydrophobic material 5, the soil surface 1a is rolled by a roller to level the soil.

However, as shown in FIG. 7, when the soil surface 1a is leveled by the roller 6, the pressure on the rising portion 4 collapses the soil surface 1a side of the hydrophobic groove 2 and the hydrophobic groove 2 is formed.
The soil surface 1a side is blocked, and permeation of rainwater and the like from the soil surface 1a into the hydrophobic grooves 2 is hindered.

When the member inserted through the pull-in hole 3 is a comparatively soft tubular body 7, the tubular body 7 is the surface of the soil of the hydrophobic groove 2 as shown in FIG. 1a is deformed by the pressure when it collapses, and the drainage performance also deteriorates.

Therefore, the object of the present invention is to perform a simple operation.
It is possible to roll the soil surface while maintaining good infiltration performance without breaking the soil surface of the hydrophobic groove, and to prevent functional deterioration due to deformation of the member inserted in the drawing hole for reliability. It is an object of the present invention to provide a high culvert formation method and a culvert formation device used directly for carrying out the culvert formation method.

[0008]

In order to achieve the above object, the method of forming a culvert according to the present invention comprises a step of excavating the soil surface in a streak shape with a soil scraping member, and cutting the soil with a standing plate along the groove. And forming a groove for hydrophobic, and forming a drawing hole at the bottom end of the groove for hydrophobic by a bullet for a hole attached to the lower end of the standing plate, and a pipe connected to the bullet for boring. In a method for forming a underdrain including a step of drawing into the hole for drawing in and a step of filling a hydrophobic material in the groove for hydrophobicity, at the time of forming the groove for hydrophobicity and the hole for drawing in, both sides of the standing plate, It is characterized in that the surface of the soil located directly above the boring bullet is rolled by a roller.

Further, in the underdrain formation device of the present invention, a soil scraping member for excavating the soil surface is provided at the rear part of the towing machine, and a standing plate for making a hydrophobic groove in the soil is provided upright behind the soil scraping member. Then, the lower end of the standing plate is provided with a bullet for forming a hole for drawing in the bottom end of the groove for hydrophobic, and a pipe for drawing into the hole for drawing in is connected to the bullet for hole, and In the underdrain forming device, which is provided with a hydrophobic material filling device at the rear, and which is provided with a hydrophobic material guide portion for inserting the hydrophobic material into the hydrophobic groove and filling the hydrophobic groove and the drawing hole with the hydrophobic material, Rollers for rolling the soil surface are arranged on both sides of the standing plate protruding to the soil surface and located directly above the boring bullet.

[0010]

According to the present invention, first, since the soil surface is excavated by the soil scraping member, it is easy to subsequently cut the hydrophobic groove by the standing plate.

Further, when the hydrophobic groove is incised by the standing plate and the drawing hole is formed by the boring bullet, the soil surface located on both sides of the standing plate and right above the boring bullet is rolled by the roller. Since the compaction is performed, the soil surface on both sides of the hydrophobic groove can be leveled.

At this time, since the standing plate is between the rollers and the bullet for punching is located right below, the hydrophobic groove and the pulling-in punch are not crushed by the roller, and the pull-in is almost a perfect circle. Perforations are formed.

As a result, it is possible to bury the pipe, which is connected to the drilling bullet and is drawn into the drawing hole, in the soil without deformation. Therefore, water permeates well through the hydrophobic groove, and the permeated water can be collected in a pipe in the soil and effectively drained.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the underdrain forming apparatus of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, this underdrain formation device 11 is connected to a rear part of a towing machine 12 such as a bulldozer via an elevator 13.

The elevator 13 comprises a parallel link 14 and a hydraulic cylinder 15 connected to the parallel link 14, and when the hydraulic cylinder 15 projects, the underdrain forming device 11 is set in the soil 16, and When the hydraulic cylinder 15 moves backward, the underdrain forming device 11
Is translated upwards.

A soil receiving plate 17 is laid on the front part of the underdrain forming device 11, and the front and rear parts of the center of the soil receiving plate 17 are supported by arches 18. It should be noted that the parallel link 14 has a front portion of the earth receiving plate 17 and the arch 1
8 and 8 respectively. Further, the arch 18
A drum 19a of the soil scraping member 19 is pivotally supported on the. This soil scraping member 19 is inserted and arranged in a slit 17a formed in the center of the soil receiving plate 17, and the drum 1
The left scraping blade 19b attached to the left end of 9a and the right scraping blade 19c attached to the right end of the drum 1
Surface 1 where the lawn of the soil 16 grows by the rotation of 9a
Scrape out 6a.

As shown in FIG. 3, each of the sand scraping blades 19b and 19c attached to both ends of the drum 19a is arranged at equal intervals (every 120 °) on each side and three on each side. The sand scraping blade 19c (19b) is the sand scraping blade 1 on the other side.
9b and 19b (19c, 19c) are arranged in the middle. Although not shown in detail in the drawing, the left soil scraping blade 19b removes the soil 16 scraped out from the soil receiving plate 1
From 7 to the left side, the right scraping blade 19c
The soil is formed in such a shape that the soil that has been scraped out is sent out from the soil receiving plate 17 to the right.

Further, the slit 1 of the earth receiving plate 17
A shovel 20 is attached to the rear portion of 7a. Figure 3
As shown in FIG.
It is located between the left scraping blade 19b and the right scraping blade 19c of 9 and behind it.
The surface 16a of the soil 16 is excavated by c and the shovel 20.

A standing plate 21 is vertically inserted through the rear portion of the arch 18 and behind the earth receiving plate 17 so that the pin 2
Positioned and fixed at 2. Although not shown, the standing plate 21 is provided with positioning holes at predetermined intervals, and one of the positioning holes is hooked via the pin 22 to allow the standing plate 21 to project downward. That is, the incision depth of the hydrophobic groove 16b by the standing plate 21 is appropriately set.

Further, at the lower end of the standing plate 21, a cylindrical perforation bullet 23 having a sharp tip for forming the perforation 16c at the bottom end of the hydrophobic groove 16b is horizontally provided. Also,
A tube 24 made of a plastic cylindrical body is connected to the rear portion of the bullet 23 for punching. The tube 24 is formed by molding a plastic sheet having a large number of holes into a cylindrical shape, and is sequentially fed while being molded into a cylindrical shape from a plastic sheet reel (not shown) disposed behind the underdrain forming device 11. ing. However, as the pipe 24, various types such as a vinyl hose having a hole can be adopted.

The standing plate 2 is provided on both sides of the arch 18.
The tip of the lever 25 is pivotally supported in front of 1. A roller 26 is pivotally supported at a portion of the lever 25 located on the side of the standing plate 21, and further, a rear end of the lever 25 is fixed to a stand 18a provided at a rear end of the arch 18 and a hydraulic pressure is fixed. It is connected to the cylinder 27. The roller 26
Is for rolling the surface 16a of the soil 16, and the rolling force is adjusted by the forward / backward movement of the hydraulic cylinder 27.

Further, a hydrophobic material filling device 28 is disposed behind the hydraulic cylinder 27. The hydrophobic material filling device 28 is fixed to the stand 18a and the arch 18 via a frame (not shown), and includes a hopper 28a and a hydrophobic material guide portion 28b disposed below the hopper 28a. It is composed of. As shown in FIG. 1, the hydrophobic material guide portion 28b is inserted into the hydrophobic groove 16b of the soil 16, and the hydrophobic material 29 supplied from the hopper 28a is inserted into the hydrophobic groove 16b and the perforation 16c.
To fill.

Next, an embodiment of the underdrain forming method of the present invention using this underdrain forming apparatus will be described. First, the underdrain forming device 11 connected to the rear part of the towing machine 12 is installed in the lifting device 1
3, the standing plate 21, the bullet 23 for perforation, the hydrophobic material guide portion 28b, etc. are set so as to enter the soil 16. After that, when the underdrain formation device 11 is towed by the tow machine 12, first, the soil scraping blades 19b and 19c of the soil scraping member 19 excavate the surface of the soil 16 on which the lawn or the like grows with a predetermined width, and subsequently, , The shovel 20 disposed behind it is the soil surface 1 between the two soil scraping blades 19b, 19c.
Scrape out 6a.

Left scraping blade 1 provided on the scraping member 19
The soil 16 scraped out by 9b is placed on the soil receiving plate 17 and sequentially sent to the left side in FIG. The soil 16 scraped out by the right soil scraping blade 19c is the soil receiving plate 1
It is sent out from 7 to the right. On the other hand, the shovel 2
The soil 16 scraped out at 0 is appropriately sent out in the left-right direction of the soil receiving plate 17 along the shovel 20. As a result, as shown in FIG. 3, the soil 16 on the scraped soil surface 16a is sequentially discharged from the soil receiving plate 17 to both sides as the towing machine 11 moves. Therefore, the excavated soil 16 does not fill the already excavated trench.

Next, the standing plate 21 disposed behind the soil scraping member 19 cuts the hydrophobic groove 16b along the excavated soil surface 16a, and is provided horizontally at the lower end of the standing plate 21. The piercing bullet 23 forms a piercing 16c at the bottom end of the hydrophobic groove 16b. At the same time, the roller 26 is soil 16
The surface 16a of the above is compacted by rolling.

As shown in FIG. 4, since the rollers 26 are disposed on both sides of the standing plate 21 and directly above the boring bullets 23, the rollers 26 roll the soil surface 16a. However, the groove 16b for hydrophobic does not collapse, and it is possible to form the perforation 16c that is almost a perfect circle.

On the other hand, a pipe 24 connected to the rear portion of the boring bullet 23 is drawn into the boring 16c in accordance with the movement of the towing machine 11. At this time, since the perforations 16c have a shape close to a perfect circle as described above, the pipe 24 is not crushed or deformed, and good drainage is maintained.

After that, the hydrophobic groove 16b is formed.
Of the hydrophobic material filling device 28 inserted into the
The hydrophobic material 29 is filled into the groove 16 b for hydrophobic and the perforation 16 c via b. It should be noted that a gap is formed between the hopper 28a of the hydrophobic material filling device 28 and the hydrophobic material guide portion 28b, and when the hydrophobic material 29 is clogged in the hopper 28a, it is easy to put a hand through the void portion. Can be removed to.

As shown in FIG. 5, when the hydrophobic material 29 is filled, since the surface 16a of the soil 1 has already been compressed by the roller 25, the soil surface 16a does not collapse and is pulled in again. The tube 24 is not deformed. Therefore, the permeation performance and the drainage performance can be sufficiently guaranteed.

[0030]

As described above, according to the present invention,
When forming the hydrophobic groove in the soil with the standing plate and forming the retracting hole with the drilling bullet, while rolling the soil surface located on both sides of the standing plate and directly above the drilling bullet with the roller Since the work is performed, it is possible to form a hole having a shape close to a perfect circle, and prevent deformation of the drainage pipe inserted into this hole,
It is possible to maintain good drainage performance. In addition, the workability is good because the groove for hydrophobic is formed and grounded at the same time.
Further, even if the hydrophobic material is filled in the hydrophobic grooves and the perforations, the soil surface is already leveled, so that the soil surface does not collapse and the infiltration performance is not hindered. As a result, high reliability in underdrain construction work can be obtained.

[Brief description of drawings]

FIG. 1 is a side view of an elevator that is connected to a towing machine and an underdrain forming device that is an embodiment of the present invention that is connected to the elevator.

FIG. 2 is a perspective view of the elevator and the underdrain forming device.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a cross-sectional view showing a state in which a hydrophobic material is filled in a hydrophobic groove by the hydrophobic material filling device of the underdrain formation device.

FIG. 6 is a cross-sectional view showing a state in which a groove for hydrophobicity and a hole for drawing in are formed by a conventional method of forming an underdrain.

FIG. 7 is a cross-sectional view showing a state in which the soil surface of the groove for hydrophobicity is leveled by a conventional method of forming an underdrain.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Underdrain forming device 12 Traction machine 13 Elevator 16b Hydrophobic groove 16c Perforation 17 Soil receiving plate 18 Arch 19 Scraping member 20 Shovel 21 Standing plate 23 Perforation bullet 24 Pipe 25 Lever 26 Roller 27 Hydraulic cylinder 28 Hydrophobic material filling device 28a Hopper 28b Hydrophobic material guide part 29 Hydrophobic material

Claims (2)

[Claims] 1. A step of excavating a soil surface in a streak shape by a soil scraping member, and a soil plate is cut along the groove with a standing plate to form a hydrophobic groove, and the groove is attached to the lower end of the standing plate. Forming a pull-in hole at the bottom end of the hydrophobic groove by a bullet for punching; drawing a pipe connected to the bullet for the hole into the pull-in hole; and filling the hydrophobic groove with a hydrophobic material. In the method of forming a underdrain, which comprises a step, at the time of forming the groove for hydrophobicity and the perforation for drawing in, the soil surface positioned on both sides of the standing plate and directly above the bullet for perforation, and rolling with a roller. Characteristic method of underdrain formation. 2. A soil scraping member for excavating the soil surface is provided at the rear of the towing machine, and a standing plate for cutting a hydrophobic groove in the soil is provided upright behind the soil scraping member, and a lower end of the standing plate is provided. A bullet for forming a hole for pulling is provided at the bottom end of the groove for hydrophobic, a pipe for drawing into the hole for pulling is connected to the bullet for punching, and a hydrophobic material filling device is provided behind the standing plate. In the underdrain formation device, wherein the hydrophobic material filling device is provided with a hydrophobic material guide portion that is inserted into the hydrophobic groove to fill the hydrophobic groove and the drawing hole for the hydrophobic material, A culvert forming device, characterized in that rollers for rolling the soil surface are disposed on both sides of the standing plate and directly above the bullet for punching.