JP5280643B2 - Buried equipment - Google Patents

Description

  The present invention attaches or detaches to the tip of a steel pipe, which is used when a buried member such as a vent pipe or a water pipe is buried in a waste layer in order to stabilize the waste dumped in a waste disposal site. The present invention relates to an embedding device to which a possible lid is attached.

  At treatment plants and landfills where waste is dumped and disposed of, methods for stabilizing it early have been developed in order to prevent harmful gases from diffusing into the atmosphere. For example, Patent Document 1 discloses a method in which a vent pipe is embedded in a waste layer, and harmful gas is sucked and removed from the waste layer through the vent pipe. In addition, as a pumping well for pumping up groundwater that has leached into the waste layer, a method of burying a water pipe in the waste layer is also known.

  As a method of embedding a ventilation pipe or a water pipe in such a waste layer, a method of drilling the waste layer using a drilling type boring machine and inserting the pipe has been adopted. .

  In addition, recently, a detachable lid is attached to the tip of a hollow steel pipe, and a buried device in which a tip such as a water pipe or a vent pipe is attached to the lid penetrates into the waste layer, and the tip lid When the lid reaches a predetermined depth, the lid is removed from the steel pipe, and only the steel pipe is pulled out to embed the lid and the water pipe or the ventilation pipe in the waste layer.

JP 2001-269640 A

  An object of the present invention is an embedding device having a detachable tip that is used when embedding a buried member such as a ventilation pipe or a water pipe in a waste disposal site, and can be easily inserted into a waste layer. It is another object of the present invention to provide an embedding device in which the tip can be easily removed.

The present invention is an embedding device comprising at least a hollow steel pipe and a lid body detachably attached to the tip of the steel pipe, wherein the lid body has a cylindrical main body whose front end is closed, periphery at least and a blade mounted helically, the center angle of the spiral from the tip of the helix of the vane to the rear end is in the range of from 225 to 315 °, and, in the area from the tip of the helix And the area | region where the central angle of a spiral is 45-90 degrees has extended ahead of the main body of the axial direction rather than the main body.

  In the present invention, since the blade having a specific structure is attached to the lid, the apparatus can be easily and efficiently penetrated into the waste layer. Also, when removing the tip lid and pulling out the steel pipe, the blade attached to the lid acts as an anchor to prevent the lid from moving, preventing the lid from being removed badly and at a predetermined depth. A buried member such as a vent pipe or a water pipe can be reliably buried.

  Hereinafter, the present invention will be described specifically and in detail with reference to preferred embodiments of the present invention.

  FIG. 1 is an exploded perspective view showing an example of a water pipe embedding device, which is a preferred example of the embedding device of the present invention. 2 is a schematic cross-sectional view of the distal end portion of the apparatus of FIG. 1, FIG. 3 is a top view of the lid of FIG. 1, and FIG. 4 is a front view of the lid of FIG. In the figure, 10 is a lid, 11 is a main body, 12 is an outer cylinder, 13 is a blade, 13a is a spiral tip of the blade 13, 13b is a spiral trailing end of the blade 13, 14 is a tip blade, and 15 is a connector. , 16 is a wiring, 16a is a detection part, 17 is a through hole, 18 is a cutting bar, 19 is a locking piece, 20 is a water passage pipe, 21 is a hole, 30 is a steel pipe, 31 is a notch, and 32 is an engaging member. A stop part, 33 is a taper part, 34 is a protrusion part, 35 is a connector, 36 is wiring. Hereinafter, each member will be described.

[Cover 10]
The lid 10 is a member that is attached to the tip of the steel pipe 30 to close the tip of the steel pipe 30 and prevents the waste and earth and sand in the waste layer from entering the steel pipe 30.

  1 and 2, the lid 10 according to the present invention has a cylindrical main body 11 closed at the tip end side of the apparatus, and has a blade 13 attached to the outer periphery of the main body 11 in a spiral shape. ing. Thus, when the spiral blade 13 is attached to the outer periphery of the lid body 10, the spiral tip 13 a of the blade 13 is discarded when the embedded device of the present invention penetrates into the waste layer. If the device is rotated so as to penetrate into the material layer (in the case of FIG. 1, if the device is rotated clockwise as viewed from the rear end), the waste or sediment is placed on the upper surface of the blade 13 Moves relatively upward easily, so that the device itself can be easily penetrated into the waste layer. The inclination angle of the blade 13 is such that when the side surface of the main body 11 is developed on a plane, the angle formed by the attachment line of the blade 13 with respect to the horizontal direction is in the range of 10 to 20 °. Is preferably attached to the main body 11. If it is less than 10 °, the effect of attaching the blade 13 is low, and if it exceeds 20 °, the penetration distance to the rotation of the device becomes long, and the burden on the heavy machinery that penetrates the device becomes undesirably large.

  The outer diameter of the blade 13 is preferably 1.8 to 2.5 times the outer diameter of the main body 11 to which the blade 13 is attached. If the outer diameter of the blade 13 is less than 1.8 times the outer diameter of the main body 11, the effect of attaching the blade 13 is low, and even if it exceeds 2.5 times, there is no difference in the effect, and the heavy machine that penetrates the apparatus This is not preferable because it increases the burden.

  3 and 4, the blade 13 according to the present invention is attached to the main body 11 so that the central angle θ1 of the spiral from the leading end portion 13a to the trailing end portion 13b is in the range of 225 to 315 °. It has been. In addition, there is a region without blades when the spiral central angle θ2 is in the range of 45 to 135 °. Due to the existence of the bladeless region, even when the blade 13 is hit by a hard obstacle, the device can be moved downward by the obstacle passing through the region. In the present invention, when the central angle θ1 of the spiral from the front end portion 13a to the rear end portion 13b of the blade 13 is less than 225 °, the effect of moving the waste or the soil upward by the blade 13 is reduced. It is not preferable, and if it exceeds 315 °, the effect of avoiding the above-mentioned obstacles cannot be obtained sufficiently. Further, when the angle is set to 270 °, there is an effect that the manufacture becomes easy.

  In the present invention, the spiral tip 13a of the blade 13 extends forward from the main body 11, and the central angle of the spiral of the extended portion is 45 to 90 °. Thus, the front end portion 13a extends forward from the main body 11, that is, the main body 11 does not exist inside the blade 13 at and near the front end portion 13a, and the inner periphery of the blade 13 is a free end. Therefore, the tip portion 13a easily enters the waste layer, and the device of the present invention can be easily penetrated even if the tip portion 13a is a slippery layer in which ash fine particles are consolidated.

  In the present invention, when the central angle of the spiral of the extended portion of the tip 13a of the blade 13 is less than 45 °, it is not preferable that the tip 13a is difficult to enter when the waste layer is a slippery layer. Moreover, since the main body 11 does not exist in the extended portion, the strength is inferior to that of the upper portion attached to the main body 11, and the hard layer penetrates when the central angle of the spiral of the extended portion exceeds 90 °. Inconveniences such as bending or distortion are likely to occur, which is not preferable.

  In the present invention, since the blade 13 exists so as to protrude in the horizontal direction from the outer periphery of the main body 11, the blade 13 digs into the waste layer when the lid body 10 is detached from the steel tube 30 and only the steel tube 30 is pulled out. Acts as an anchor and prevents the lid 10 from moving upward. Therefore, when the removal of the lid 10 is insufficient, the lid 10 is not easily pulled up even if the steel pipe 30 is pulled up, so the lid 10 is pulled up and the tip becomes less than a predetermined depth. There is no risk of burying defects.

  In the lid body 10 of this example, the outer cylinder 12 is concentrically arranged outside the opening of the main body 11 with a predetermined gap, and the tip of the steel pipe 30 is inserted into the gap, The steel pipe 30 and the lid body 10 are locked. In this example, the locking piece 19 is attached so as to partially fill the gap, and the locking piece 19 is passed through the notch 31 formed at the tip of the steel pipe 30 and locked. Note that the gap between the outer cylinder 12 and the main body 11 is closed at the front end side of the apparatus, and when the burying apparatus is embedded in the waste layer, the waste or sediment in the waste layer is inserted into the gap. Prevent entry.

  In addition, the lid 10 of this example is provided with the tip blade 14 on the tip side of the main body 11 in order to further facilitate the penetration of the apparatus, but the member may not be provided.

[Embedded material]
As the buried member embedded in the embedding device of the present invention, the water pipe 20 and the ventilation pipe exemplified in FIGS. 1 and 2 are mainly used, but the present invention is not limited to this. As the water flow pipe and the air flow pipe, for example, a commercially available member called a strainer pipe is preferably used. Specifically, a perforated pipe in which holes of appropriate sizes are uniformly formed in a polyvinyl chloride pipe, and a nonwoven fabric are used. And the like, in which a spiral elastic body is attached to the outside of the pipe made of. In addition, “Kananet (registered trademark)” manufactured by Kanaflex Corporation, in which a helical hard resin member is wound around a cylindrical flexible porous resin pipe, is also preferably used.

  As shown in FIG. 1, these embedded members may be embedded in advance in the apparatus of the present invention and embedded at the same time as the penetration of the apparatus. In that case, the tip is attached to the lid 10. Specifically, as shown in FIG. 2, a dimensioning rod 18 is attached to the tip of the embedded member, and the dimensioning rod 18 is passed through a through-hole 17 provided in the vicinity of the tip of the main body 11 of the lid body 10. What is necessary is just to attach to the body 10. Further, the embedded member may be inserted into the steel pipe 30 after the apparatus of the present invention is embedded.

  In addition, as a means to attach the front-end | tip of a to-be-embedded member to the cover body 10, you may utilize a wire etc. without being limited to the cutting bar 18, but if it is a cutting bar, penetration of the cover body 10 will be sufficient as it. It is preferable that the front end protruding from the hole 17 can be fixed with a nut. The diameter of the sizing bar 18 is about 6 to 15 mm.

[Steel pipe 30]
The steel pipe 30 according to the present invention attaches the lid 10 to the tip and penetrates into the waste layer, then removes the lid 10 in the waste layer, leaving the lid 10 at the tip of the drilling hole, A member that is pulled up and collected. Therefore, the steel pipe 30 is configured such that the lid 10 described above is detachably attached.

  In this example, as described above, the lid body 10 includes the main body 11 and the outer cylinder 12, and the tip of the steel pipe 30 is inserted into the gap between the main body 11 and the outer cylinder 12 to engage with the lid body 10. Stop. Therefore, the steel pipe 30 of the present example is formed so that the inner diameter is larger than the outer diameter of the main body 11 of the lid body 10 and the outer diameter is smaller than the inner diameter of the outer cylinder 12.

  Further, in this example, as the locking structure, a notch 31 is formed at the tip of the steel pipe 30 so as to cut into a substantially inverted L shape from the tip, and the lid 10 protrudes inside the notch 31. A locking piece 19 that can be locked by the locking portion 32 is formed. When attaching the steel pipe 30 to the lid 10, the tip of the steel pipe 30 is connected to the main body 11 of the lid 10 while confirming the position so that the locking piece 19 enters the notch 31 of the steel pipe 30. By inserting between the outer cylinder 12 and then rotating the steel pipe 30, the locking portion 32 enters the gap below the locking piece 19, and the lid body 10 and the steel pipe 30 are integrated.

  Moreover, when removing the cover body 10 from the steel pipe 30, if the steel pipe 30 is pulled up after rotating the steel pipe 30 reversely, it will detach | leave easily. In particular, in this example, since the tapered portion 33 is provided on one of the opening ends of the notch 31 of the steel pipe 30 (on the side opposite to the locking portion 32), when removing the lid 10 from the steel pipe 30. Since the locking piece 19 slides along the tapered portion 33, the removal is performed smoothly.

  In the present invention, as described above, since the blades 13 are spirally attached to the lid body 10, the blades 13 serve as anchors to prevent the lid body 10 from moving upward. In this case, the steel pipe 30 alone can be pulled up and collected with the lid body 10 remaining.

  In this example, as shown in FIG. 2, the engagement region between the steel pipe 30 and the lid body 10 is covered with the outer cylinder 12, and the gap between the outer cylinder 12 and the main body 11 is closed on the distal end side. Therefore, when penetrating the buried device of the present invention into the waste layer, the locking region does not directly contact the waste layer, and waste is entangled in the locking region, or waste or earth and sand. There is no possibility of causing inconveniences such as hindering penetration of the burying device or hindering removal of the lid 10 from the steel pipe 30 due to adhering.

  Moreover, in this example, the protrusion part 34 over the perimeter is formed in the steel pipe 30. As shown in FIG. The protrusion 34 is located in the vicinity of the opening of the outer cylinder 12 of the lid 10 when the lid 10 is attached to the steel pipe 30, and covers the gap between the outer cylinder 12 and the steel pipe 30 over the entire circumference. Thus, when the apparatus of the present invention is penetrated, even if a situation such as once pulling the apparatus upward occurs, it is possible to prevent waste and earth and sand from entering the gap. There is no fear that it becomes difficult to remove the ten steel pipes 30.

[Temperature sensor]
In the embedding device of this example, a temperature sensor for grasping the temperature at the tip of the embedding device is provided. Specifically, a thermocouple is preferably used, the detection unit is attached to the lid body 10, and the wiring drawn from the detection unit is connected to a temperature measurement device (not shown) disposed outside through the steel pipe 30. In this example, as shown in FIG. 2, it is configured to detect the temperature of the cutting bar 18 by attaching the detection unit 16 a to the cutting bar 18 that attaches the water flow pipe 20 to the lid 10. However, it is not limited to this, For example, you may fix to the inner wall of the main body 11 of the cover body 10. FIG.

  In this example, in such a wiring, in the lid body 10 or in the vicinity of the lid body, the connectors 15 and 35 that can connect / separate the wiring 16 drawn from the detection unit 16a and the wiring 36 drawn from the temperature measuring device. Connecting.

  By arranging the temperature sensor as described above and grasping the temperature of the tip of the apparatus, for example, when the temperature rises to the extent that it affects the water pipe 20 at the time of penetration of the apparatus, the penetration of the apparatus is temporarily stopped. It is possible to avoid such effects by resting. Specifically, when the water pipe 20 is made of polyvinyl chloride, the penetration operation is stopped before the softening temperature is reached, and the operation is paused until the temperature of the apparatus once decreases.

  Further, as described above, the wires 16 and 36 of the temperature sensor according to this example are connected by the connectors 15 and 35. Therefore, when the lid 10 is removed from the steel pipe 30 and the steel pipe 30 is pulled up, the wiring 36 and the connector are connected. 35 is pulled upward, and as a result, the connector 35 is detached from 15. When the connectors 15 and 35 are separated from each other, the signal from the detection unit 16a is not sent to the temperature measuring device, so that it is confirmed that the lid 10 has been completely removed from the steel pipe 30. The connector 35 and the wiring 36 can be repeatedly used in the next burying operation.

  In order to avoid inconveniences such as when the steel pipe 30 is pulled up and the connector 15 is separated from the wire 35, the wiring 36 extends and breaks, and it takes time to separate, the positions of the connectors 15 and 35 are in the lid 10. Alternatively, it is in the vicinity of the lid 10. Further, as shown in FIG. 2, the wiring 36 is preferably fixed to the inner wall of the steel pipe 30 in the vicinity of the connector 35 so that the wiring 36 does not extend above the fixed portion.

[Embedding method]
The burying method of the water flow pipe 20 using the burying apparatus of FIG. 1 is demonstrated. FIG. 5 is a schematic cross-sectional view showing the embedding process. In the figure, 51 is a waste layer and 52 is a drilling hole.

  In the embedding device of FIG. 1, the tip of the water flow pipe 20 is attached and fixed to the lid body 10 (FIG. 5A), then the water flow pipe 20 is inserted into the steel pipe 30, and the steel pipe 30 is attached to the lid body 10. Lock [FIG. 5 (b)]. In addition, after inserting the water flow pipe 20 in the steel pipe 30 first, the front-end | tip of the water flow pipe 20 may be attached to the cover body 10, and the steel pipe 30 may be latched to the cover body 10 next.

  In this example, the attachment of the lid body 10 and the steel pipe 30 only needs to latch the locking piece 19 provided with the lid body 10 in the notch 31 of the steel pipe 30, so other members and tools are required. It can be easily attached without using it.

  Next, the embedding device in the waste layer 51 is penetrated to a predetermined depth while rotating the steel pipe 30 with a heavy machine [FIG. 5 (c)]. At this time, as described above, in the embedding device of the present invention, since the blades 13 are attached to the lid body 10, the device can penetrate into the waste layer 51 efficiently.

  The lid 10 is removed from the steel pipe 30, and the steel pipe 30 is pulled up and collected [FIG. 5 (d)]. In this example, the lid 10 and the steel pipe 30 are merely engaged with the notch 31 provided on the steel pipe 30 with the notch 31 provided on the lid 10, and the open end of the notch 31 is provided. Since the taper portion 33 is formed on the upper surface of the cover body 10, the locking piece 19 is pulled out of the notch portion 31 by pulling it up while rotating the steel pipe 30 in the direction opposite to that when the steel pipe 30 is attached to the cover body 10. Easily desorbs from 30. At this time, as described above, the blades 13 attached to the lid body 10 act as anchors of the lid body 10, so that the steel pipe 30 is pulled up with the lid body 10 fixed to the waste layer 51. The steel pipe 30 is quickly removed from the lid body 10. Moreover, since the connectors 15 and 35 provided in the middle of the temperature sensor wiring are separated from each other when the steel pipe 30 is pulled up, the transmission of the signal from the detection unit 16a attached to the lid 10 is stopped, and the lid 10 is externally connected. Removal is confirmed.

  After pulling up the steel pipe 30, the water flow pipe 20 is left in the hole 52. In this state, filler such as crushed stone is filled in the water flow pipe 20 and the drilling hole 52, and concrete is poured in the vicinity of the ground surface to a depth of about 0.5 to 1.0 m to fix the upper end of the water flow pipe 20. It is preferable to do.

  Since groundwater flows from the surroundings into the water pipe 20 buried as described above, the tip of the hose is inserted into the water pipe 20, and the other end is connected to a pump to pump up and remove the groundwater. It can be performed. At this time, since waste and earth and sand are blocked by the water flow pipe 20, there is no possibility that the hose is clogged with waste and earth and sand during collection of groundwater. In addition to pumping ground water as described above, the once-buried water pipe 20 feeds pressurized air to activate aerobic bacteria present in the waste layer 51 and stabilize the waste. You can also.

  The present invention is used when a buried member such as a vent pipe or a water pipe is buried in a waste disposal site or the like.

It is a disassembled perspective view of preferable one Embodiment of the embedment apparatus of this invention. It is a front-end | tip part schematic sectional drawing of the embedding apparatus of FIG. It is the figure which looked at the cover body of the embedding apparatus of FIG. 1 from upper direction. It is a front view of the cover body of the embedding apparatus of FIG. It is process drawing of the embedding method of the water flow pipe using the embedding apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cover 11 Main body 12 Outer cylinder 13 Blade 13a Blade tip 13b Blade rear end 14 Blade tip 15, 35 Connector 16, 36 Wiring 16a Detector 17 Through hole 18 Cut rod 19 Locking piece 20 Water pipe 21 Hole 30 Steel Pipe 31 Notch 32 Locking Part 33 Tapered Part 34 Projection 51 Waste Layer 52 Drilling

Claims (1)

An embedding device comprising at least a hollow steel pipe and a lid body detachably attached to the tip of the steel pipe,
The lid body has at least a cylindrical main body whose front end is closed and a blade spirally attached to the outer periphery of the main body, and the central angle of the spiral from the front end to the rear end of the spiral of the blade is 225. in the range of to 315 °, and, an area from the tip of the spiral, that the region where the central angle of the helix is 45 to 90 ° is extended forward in the axial direction of the body than the body Characteristic buried device.

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