JPH0771654A - Pipe burying method - Google Patents

Abstract

PURPOSE:To provide a pipe burying method whereby the ground surface of burying a pipe can be placed in an almost flat condition while the pipe can be smoothly arranged to be buried in the ground without digging a ditch. CONSTITUTION:On both ends on a pipe arranging expected line, a hole of depth corresponding to the burying depth of a pipe P is respectively dug, to also previously form the pipe P of length longer than that between these holes, a drilling tool 61 is provided in the lower part or in the rearward of a knife 4 for generating a notch in the ground, an end of the pipe P is arranged behind the drilling tool 61, and by moving the knife 4 along the pipe arranging expected line by a moving means 1, the notch is generated in the ground by the knife 4. Simultaneously with the above, while drilling a hole equal to or larger than a diameter of the pipe P to a suitable depth in the ground by the drilling tool 61, the pipe P is towed, inserted and arranged in the ground, and the ground surface G2 of generating banking by underground passing the drilling tool is pressed by a pressing device so as to obtain almost flatness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe burying method for burying a pipe in the ground.

[0002]

2. Description of the Related Art Conventionally, as a method for burying a pipe in the ground, as shown in FIG. 16, a groove a having a predetermined width is scooped along a pipe burying position by a scoop or a trencher.
After digging, a plurality of pipes b1 are connected by a socket c to a length corresponding to the length of the groove a, and this pipe b is put in the groove a by several people or in the groove a. The pipes b were arranged in the ground by arranging the pipes b in the grooves a by successively connecting the pipes b and then backfilling the excavated soil d.

[0003]

However, the above-mentioned conventional method has many problems as described below.

Since the excavated soil d is usually piled up along the groove a, the soil d interferes with the burying work of the pipe b and gets into the shoes of the worker or stains clothes, resulting in poor workability. bad.

Soil d piled up along the groove a
When it rains, it flows out to the surroundings, so that it pollutes the surroundings and interferes with walking, and also enters the groove a.

As a solution to the above-mentioned problems (1) and (2), the soil d excavated from the groove a is carried to a place apart from the groove a, and then carried again after the pipe is arranged. The work of carrying the excavated soil d is difficult and the burden on the operator is heavy.

If the ground is clay, rainwater collects in the dug groove a, which hinders pipe installation work.

In the case where the pipe b is placed in the groove a and then the groove a is backfilled, a gap e is easily formed on the lower surface of the pipe b during the backfilling as shown in FIG. When the pipe b is embedded with a gap e formed therein, when the pipe b is filled with a liquid such as water or a chemical solution, the pipe b hangs down to the portion of the gap e due to the weight of the liquid,
This causes damage or breakage of the pipe b (including the disconnection of the pipe b1 from the socket c). In particular, when the pipe b is arranged in a situation in which the width of the groove a is narrow, the depth is large, the pipe diameter is large, and the soil is lumpy, such as clayey soil or stoney soil, a gap is easily formed. However, the above problem occurs.

When backfilling the excavated soil d in the groove a,
If the upper surface is raised as shown in FIG. 17 in anticipation of the depression of the soil d, the raised portion d1 will hinder walking or running of the vehicle. Particularly in the case of a fairway on a golf course, the upper surface is flattened because it hinders golf play.

Even if the soil d is heaped up in anticipation of depression, the backfilled soil d is soft, and as shown in FIG. 18, the upper surface of the groove a is often depressed d2 more than expected. Similar to the above, the portion d2 hinders walking and running of a car, and also hinders golf play.

When the soil d backfilled as described above is depressed, the pipe embedded in the soil d is also depressed (see the solid line from the alternate long and short dash line in FIG. 18). At this time, there is no problem if the degree of depression of the pipe b is uniform over the entire length of the pipe, but as shown in FIG. 19, if the degree of depression of the pipe b becomes uneven due to being obstructed by the stones f and the like, A large force is locally applied to this blocked portion, which causes damage or breakage of the pipe.

In order to solve many of the problems described above, a moving means is used to make a notch in the ground along a pipe disposition line with a knife attached to the moving means and to be provided below or behind the knife. A method is conceivable in which the pipe connected to the perforation tool is pulled into the ground while the perforation tool is used to make a hole in the ground so that the pipe penetrates into the ground without digging a groove.

However, when the pipe is buried by the above-mentioned method, the pipe can solve the many problems described above and can be smoothly buried, but in this method, the drilling tool is forcedly penetrated into the ground, There is a problem that the ground surface rises as the equipment passes, and when the ground surface rises like this, there is a problem that it stumbles at this raised portion and interferes with walking, and it interferes with play on the golf course. . In addition, this phenomenon that the ground surface rises is remarkable when the perforator is penetrated into the hard ground, when a perforator with a large diameter is used, or when the perforator is passed through a shallow place near the ground surface. appear.

[0014]

The pipe burying method of the present invention is a pipe burying method of burying a pipe of an appropriate length in the ground, and the pipe burying depth is set at both ends on the pipe arranging line. While digging holes of depth corresponding to
By connecting a plurality of pipes of a predetermined length with a joint and fixing the connecting portion with an adhesive, a pipe longer than the distance between the holes dug on both ends of the planned pipe arrangement line is formed in advance. Provide a perforator at the bottom or rear of the knife to put a notch in, place the end of the pipe behind the perforator,
By moving the knife along the planned pipe line by the moving means, while making a cut in the ground with the knife, while making a hole with the same or larger diameter as the pipe diameter at an appropriate depth in the ground with the punching tool. The pipe is towed to be placed through the ground, and the ground surface, which is raised by the perforation tool passing through the ground, is pressed by the pressing device to be substantially flat.

[0015]

[Operation] While digging holes at both ends on the planned pipe arrangement line, by connecting a plurality of pipes of a predetermined length by joints and fixing the connecting portions with an adhesive, both ends on the planned pipe arrangement line are connected. A pipe longer than the space between the dug holes is formed in advance, and this pipe is arranged on the extension of the pipe arrangement line, and then a knife is arranged in the hole in which one end of the pipe is arranged, and the knife. Connect one end of the pipe to a suitable place through a connecting member, and use a knife to make a notch in the ground along the expected pipe placement line by a moving means, and connect the pipe to the ground by a perforating tool of the connecting member. While pulling one end of the pipe while opening the same or a large hole, the pipe is smoothly placed in the ground, and the ground surface that is raised by the passage of the punching tool is made substantially flat by the pressing device. Cormorant is pressed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic structure of a pipe burying device used when carrying out the pipe burying method according to the present invention.

In FIG. 1, reference numeral 1 denotes a traveling vehicle (moving means) capable of traveling appropriately by a driving operation of a driver, and a pipe burying device 2 is connected to a rear portion of the traveling vehicle 1 in a traveling direction via a connecting member 11. Has been done.

As shown in FIGS. 1 and 2, the pipe burying device 2 is provided with a grass cutting blade 3 for cutting the lawn G laid on the ground into a slit shape, and a grass cutting blade 3 arranged in series behind the grass cutting blade 3 in the traveling direction. The knife 4 is provided, a lawn pressing member 5 disposed near both sides of the knife 4, and a connecting member 6 that connects one end of the pipe P to an appropriate position of the knife 4.

The lawn cutting blade 3 is the pipe burying device 2
1 and 2, the cutting blade 3a is inserted from the lawn G into the ground for a predetermined length as the traveling vehicle 1 travels during the pipe burying work shown in FIGS. In this state, the lawn G is cut to cut so-called long tufts and strong roots of the lawn G.

The knife 4 is for making a cut in the ground below the lawn G following the cutting of the lawn G by the lawn cutting blade 3, and the length of the cutting blade 41 is a pipe burial. It is set to correspond to the depth. This pipe burial depth is usually set to about 1 m to 0.2 m in consideration of the environment of the place where the pipe P is buried, and it is deeply buried when there is a risk of damage to the pipe P due to freezing or vehicle passage. To be done.

The connecting member 1 is provided on the upper end of the knife 4.
1 is connected to the vibration generator 42. When the pipe burying operation is performed, the vibration generator 42 vibrates the knife 4 as the traveling vehicle 1 travels to correspond to the pipe burying depth. Make a cut in the ground at a depth.

The lawn pressing member 5 prevents the lawn G from being dug up by pressing the lawn G on both sides of the slit cut by the lawn cutting blade 3 from above when the undercut is made by the knife 4. The pipe burying device 2 is disposed on the left and right sides of the knife 4 via a bracket 51. The lower surface, which is the lawn pressing surface of the lawn pressing member 5, is arranged such that the forward end portion of the traveling vehicle 1 in the traveling direction is higher than the lawn surface, and is curved so as to press the upper surface of the lawn G at the rear portion. There is.

The turf cutting blade 3, knife 4 and turf pressing member 5 described above are connected to the traveling vehicle 1 via the connecting member 11, and are configured to be movable in the vertical direction by the expansion and contraction operation of the cylinder 12. At the same time, it can be appropriately removed from the traveling vehicle 1.

The connecting member 6 is connected to the lower end of the knife 4 and a perforating tool 61, and is connected to the perforating tool 61.
Holder 6 for holding one end of the pipe P to be buried
It is composed of 5 and.

When the pipe P is buried, the perforation tool 61 is for forming a through hole for the pipe P in the buried portion of the pipe P in advance so as to assist the pulling of the pipe P into the ground. The punching tool 61 is formed in a conical shape in the illustrated example, and the small diameter portion is connected to the lower end portion of the knife 4 via a bracket 63 by a connecting member 62 such as a chain with the small diameter portion being forward in the traveling direction. Has been done. Punch 61
The size of the large-diameter portion is equal to or slightly larger than the diameter of the pipe P.

For the holder 65, for example, a bag-shaped net member such as a Chinese chain is used.
Wrap vinyl tape, gum tape, rubber band, etc. around one end of the pipe P to form irregularities on the surface of the pipe P.
This net member is put on one end of the pipe P, and a band, a vinyl tape 66, or the like is wound on the pipe P so that the pipe P
Firmly hold one end of. The tip of the holder 65 is connected to the large diameter portion of the perforator 61 via a connecting member 67.

Here, as the pipe P, a plastic pipe having appropriate strength is used, and as shown in FIG. 3, a predetermined length (for example, 4 m, suitable for transportation) is used.
It is produced by connecting a plurality of pipes P1 formed to have a length of 5.5 m or the like with a socket (joint) P2 and adhering each connecting portion.

Reference numeral P4 shown in FIGS. 1 and 2 is a cap for closing one end opening of the pipe P held by the holder 65. One end of the pipe P is buried by the cap P4 when the pipe P is buried. Soil is prevented from entering the pipe P through the opening. Moreover, the code | symbol C shown in FIG. 1 is the lawn curing board laid on the lawn G.

Next, the operation of the pipe burying device 2 thus constructed will be described together with the pipe burying method of the present invention.

First, as shown in FIG. 4, holes 7a and 7b having a depth corresponding to the burying depth of the pipe P are dug at both ends of the planned pipe arrangement line X. At this time, by placing the dug up soil 71 on the sheet 72, the surroundings are not polluted and the backfilling can be easily performed.

Also, while digging the holes 7a and 7b,
A plurality of pipes P1 are connected by a socket P2, and each connecting portion is bonded in advance to produce a pipe P having a length L2 slightly longer than the pipe burying length L1.

Then, the pipe P manufactured as described above is arranged on an extension of the pipe arrangement line X.

After that, the traveling vehicle 1 is moved and placed in the vicinity of the hole 7a, and one end of the pipe P is connected to the knife 4 of the pipe burying device 2 connected to the traveling vehicle 1 through the connecting member 6. Then, the pipe burying device 2 is arranged in the hole 7a for starting the pipe burying work according to the pipe burying depth.

Then, the traveling vehicle 1 is caused to travel along the planned pipe arrangement line X while operating the vibration generator 42, so that the pipe P is embedded in the ground.

More specifically, as shown in FIG. 2, the traveling vehicle 1
First, the lawn cutting blade 3 continuously cuts the lawn G along the planned pipe arrangement line X to form the slit G1, and then along the slit G1 of the lawn G, the lawn pressing member is driven. While pressing the lawn G on both sides of the slit G1 with 5, the knife 4 cuts into the ground. At this time, since the lawn G is sufficiently cut by the lawn cutting blade 3, the root of the lawn G is not entangled with the lawn pressing member 5 or the knife 4, and the lawn G is suppressed by the lawn pressing member 5. Therefore, the lawn G is not dug up by the knife 4.

Then, as the knife 4 cuts into the ground, the pipe P connected to the knife 4 is cut.
One end of is pulled through the connecting member 6, is guided while making a hole in the ground by the punching tool 61 of the connecting member 6, and advances in the ground, and the pipe burying device 2 reaches the other hole 7b,
The pipe P is arranged in the ground between the holes 7a and 7b.

Here, when the pipe is towed while making a hole having a diameter equal to or larger than the diameter of the pipe at an appropriate depth in the ground by the punch as described above, the geology of the ground, or the diameter of the punch, or Depending on the depth that the punch penetrates underground,
Large and small raised portions G2 as shown in FIGS. 5 to 8 are formed on the ground surface.

The shape of the punching tool is not limited to the shape of the embodiment, and if the size is equal to or slightly larger than the diameter of the pipe P, for example, hemispherical shape, spherical shape, elliptical shape, triangular pyramid, or four-sided shape. It may be a pyramid or the like.

FIG. 5 shows a state when a small-diameter punch is passed through the hard ground, and FIG. 6 shows a state when a large-diameter punch is passed through the hard ground. When the pipe P is embedded and arranged by using the diameter punching tool, the raised portion G is larger than when the pipe P is buried and arranged by using the small diameter punching tool.
2 is big. FIG. 7 shows a state when a small-diameter punch is passed through the soft ground, and FIG. 8 shows a state when a large-diameter punch is passed through the soft ground. In the above, although the raised portion G2 is smaller than that of the hard ground, when the pipe P is embedded and arranged by using the large-diameter punching tool, the raised portion G2 corresponding to the raised portion G2 also occurs. In addition, if the depth of the punching tool passing through the ground is deep, the bulge tends to be small, and if it is shallow, the bulge tends to be large.

Therefore, in the pipe burying method of the present invention,
After the punching tool has passed through the ground, the raised portion G2 generated by the passage of the punching tool is pressed by the pressing devices shown in FIGS. 9 to 15 so that the raised portion G2 becomes substantially flat.

In FIG. 9, when the worker runs on the raised portion G2 by the driving roller 81, this raised portion G2
10 is pressed so as to be substantially flat, and in FIG. 10, the operator manually presses the roller 82 to press the raised portion G2 so as to be substantially flat. In FIGS. , 84 press the raised portion G2 to be substantially flat. FIG. 13 shows an example in which the pipe burying device 2 is provided in the rear of the traveling vehicle 1 and the roller 82 is provided in the rear thereof, and FIG. 1 shows an example in which the pipe burying device 2 is provided in front of 1, and a mirror 85 and a roller 82 provided with a mechanism for pressing with hydraulic pressure or pneumatic pressure are provided behind.

Further, FIG. 15 shows an example in which the roller 82 is provided in the front of the traveling vehicle 1 and the pipe burying device is provided in the rear. In the structure shown in FIG. 15, the roller 82 is not used at the same time as the pipe burying by the pipe disposing device 2 as shown in FIGS. 13 and 14, but the roller 82 is retracted upward as shown by the solid line in FIG. In the state where the roller 82 is not used, first, the pipe P is buried in the ground by the pipe burying device 2, the buried pipe is separated from the pipe burying device 2, and then the traveling vehicle 1 is returned to the original position.
As shown by the chain double-dashed line in FIG. 15, the roller 82 is placed in the used state with the pipe burying device 2 retracted upward, and the traveling vehicle 1 is made to travel again and pressed by the roller 82.

Further, as the pressing device, there are shown in FIGS.
It is not limited to the one shown in FIG. 1A, and may be anything as long as it can be pressed so that the raised portion G2 becomes substantially flat. Further, various pressing devices may be optimally used in consideration of the geology of the pipe burying work and the condition of the lawn.

Further, in this example, the pipe is buried in the ground under the lawn, but the present invention can be applied to the case where the pipe is buried in the ground without a lawn.
In this case, the pipe burying device 2 in this embodiment
The grass cutting blade 3 and the grass pressing member 5, which are the constituent parts of the above, are unnecessary, and the knife 4 and the connecting member 6 may be provided.

[0046]

As described above, according to the pipe burying method of the present invention, holes are formed at both ends on the planned pipe arranging line, and a plurality of pipes of a predetermined length are connected by joints to connect them. By fixing the parts with an adhesive, a pipe longer than the space between the holes dug at both ends of the planned pipe arrangement line is formed in advance, and a punching tool is provided below or behind the knife for making a cut in the ground. By arranging the end of the pipe behind the punch, and moving the knife along the planned line for pipe placement by the moving means, not only the incision is made in the ground by the knife, but also the appropriate depth in the ground is cut by the punch. A pipe having a diameter equal to or larger than the diameter of the pipe is towed to dispose the pipe through the ground, and the surface of the ground which is raised by the passage of the punching tool is made substantially flat by the pressing device. Since it presses, many problems such as swelling of excavated soil, depression of embankment and damage to the embedded pipe are eliminated along with conventional work such as digging a groove and filling the pipe in this groove, and it is hard. Even if a pipe is buried in the ground, a pipe with a large diameter is buried, or a pipe is buried in a shallow place in the ground, the ground surface is not left in a raised state, and the ground surface is not left. Since it is in a substantially flat state, it is safe because it does not stumble at this raised portion and interferes with walking, and it does not particularly hinder play at a golf course.

[Brief description of drawings]

FIG. 1 is a side view showing a pipe burying device according to the present invention.

FIG. 2 is a partially enlarged perspective view showing a pipe burying device according to the present invention.

FIG. 3 is a cross-sectional view showing the structure of a pipe.

FIG. 4 is a diagram illustrating a pipe burying method according to the present invention.

FIG. 5 is a cross-sectional view showing a state in which a small-diameter punch is passed through the hard ground.

FIG. 6 is a cross-sectional view showing a state when a large-diameter punch is passed through the hard ground.

FIG. 7 is a cross-sectional view showing a state in which a small-diameter punch is passed through soft ground.

FIG. 8 is a cross-sectional view showing a state when a large-diameter punch is passed through soft ground.

FIG. 9 is a perspective view showing a drive roller as a pressing device.

FIG. 10 is a perspective view showing a manual roller as a pressing device.

FIG. 11 is a perspective view showing a roller compactor as a pressing device.

FIG. 12 is a perspective view showing a roller compactor as a pressing device.

FIG. 13 is a diagram showing a state in which a pressing machine is attached to a traveling vehicle.

FIG. 14 is a diagram showing a state in which a pusher is attached to a traveling vehicle.

FIG. 15 is a view showing a state in which a pressing machine is attached to a traveling vehicle.

FIG. 16 is a perspective view showing a conventional pipe burying method.

FIG. 17 is a cross-sectional view showing a state in which a pipe is buried by a conventional pipe burying method.

FIG. 18 is a sectional view showing a state in which a pipe is buried by a conventional pipe burying method.

FIG. 19 is a cross-sectional view showing a state in which a pipe is buried by a conventional pipe burying method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling vehicle (moving means) 4 Knife 6 Connection member 61 Drilling tools 7a, 7b Hole 81 Drive roller (pressing device) 82 Manual roller (pressing device) 83,84 Rolling machine (pressing device) G Lawn P pipe X Pipe arrangement Schedule line

Claims (1)

[Claims] 1. A pipe burying method for burying a pipe of an appropriate length in the ground, which comprises digging a hole having a depth corresponding to the burying depth of the pipe at both ends on a planned pipe arrangement line, By connecting a plurality of pipes of a predetermined length with a joint and fixing the connecting portion with an adhesive, a pipe longer than the distance between the holes dug on both ends of the planned pipe arrangement line is formed in advance. A piercing tool is provided at the bottom or rear of the knife to make a cut in, the end of the pipe is arranged behind the piercing tool, and the knife is moved along the planned pipe arrangement line by the moving means. While making a cut in the hole, pull the pipe through the hole while making a hole with the same or a large diameter as the diameter of the pipe with the punch, and then place the pipe through the hole. Excitement A method for embedding a pipe, characterized in that the ground surface where the cracks occur is pressed by a pressing device so as to be substantially flat.