JP4181595B2 - Dam dredging equipment - Google Patents

Description

  The present invention relates to a dripping apparatus for a dam that discharges sediment accumulated in the dam.

Conventional dam dripping devices are considered to be excavated with heavy machinery loaded on a base boat, using a ship with dedicated equipment, or using the principle of siphon.

However, if the trolley is equipped with heavy machinery or dedicated equipment, the trolley must be moved to the shore to throw it away when a certain amount of earth and sand accumulates on the trolley, which is inefficient and costly. There was a drawback of becoming.
Moreover, the thing using the principle of siphon has a fault that a sufficient suction force cannot be obtained and earth and sand cannot be discharged efficiently.
JP-A-9-158160

In view of the above-mentioned conventional drawbacks, the present invention efficiently discharges sediment accumulated in the dam using the power of drainage flowing through the drainage port and intake port of the dam without using expensive facilities and equipment. The purpose of this is to provide a drunk drooping device.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

In order to achieve the above-mentioned object, the present invention has a structure in which the tip of the dam attached to the rear end of the dam so as to be sucked by the drainage flowing through the drain or the intake is the earth and sand in the dam. A discharge hose such as earth and sand that can be positioned at the site where it is deposited, and a high pressure that facilitates the suction of earth and sand by injecting high-pressure water into the earth and sand sucked by the discharge hose from the part near the tip of the discharge hose The water injection device constitutes the dam drenching device.

  As is clear from the above description, the present invention has the following effects.

(1) The front end portion, to which the rear end portion is attached so as to be sucked by the drainage flowing through the drainage port or intake port, is positioned at the site where the sediment in the dam is accumulated. Because it consists of a discharge hose such as earth and sand and a high pressure water injection device that makes it easy to suck the earth and sand by injecting high pressure water to the earth and sand sucked by the discharge hose from the portion near the tip of the discharge hose, When the water in the dam is drained from the drainage port or the intake port, a suction force acts on the discharge hose by the drainage flow passing through the drainage port or the intake port, and the earth and sand can be sucked and discharged.
Therefore, it is not necessary to use expensive equipment and energy for discharging the sediment accumulated in the dam, and the sediment can be discharged at a low cost.

(2) According to the above (1), high-pressure water can be injected by the high-pressure water injection device onto the sediment deposited from the portion near the tip of the discharge hose, so that the soil and the like can be efficiently sucked from the discharge hose. .

(3) According to the above (1), since the structure is simple and it is not necessary to use a special device, it is possible to perform an operation for draining earth and sand in a short time.

(4) In claim 2, the same effects as in the above (1) to (3) can be obtained, and the discharged earth and sand can be sorted out by the earth and sand sorting tank to collect the earth and sand.

(5) In claim 3, the same effects as in (1) to (3) can be obtained, and the tip of the discharge hose can be efficiently moved to efficiently discharge the sediment accumulated in the dam. .

  Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings.

  In the first embodiment for carrying out the present invention shown in FIGS. 1 to 6, reference numeral 1 denotes a dredging apparatus for a dam according to the present invention capable of discharging earth and sand 3 accumulated in the dam 2 to the outside of the dam 2. The dam dripping device 1 includes a discharge hose fitting 6 attached to a drain port 5 provided with an opening / closing valve 4 at a central portion or an outer portion formed in the dam 2, and a rear portion of the discharge hose attachment 6. A discharge hose 7 whose end is attached so as to be sucked by the drainage flowing through the drainage port 5 and whose tip can be positioned at the site where the earth and sand in the dam 2 is deposited, and the discharge hose 7 The discharge hose 7 sucks from a portion near the tip of the discharge hose 7 from a trolley 9 that moves the tip of the discharge hose to a predetermined position via the wire 8 and a water discharge pump 10 attached to the trolley 9. High to earth and sand 3 Water jet with high-pressure water injection system 11 that facilitates suction of the sediment, and a soil sorting tank 12 which receives the effluent from the drain outlet 5.

  As shown in FIG. 3, the discharge hose attachment 6 is in close contact with the inner wall surface of the drainage port 5, in which a flange portion 13 is fixed to the upstream peripheral portion of the drainage port 5 with a plurality of anchor bolts 14. A case body 17 including a guide cylinder 16 having a support portion 15 that can drain and supports the rear end portion of the discharge hose 7, and is fixed to the flange portion 13 of the case body 17 with a plurality of bolts 18. A lattice-shaped discharge hose support 19 that supports a portion near the rear end of the discharge hose 7 at the center is formed.

  If necessary, the discharge hose 7 is placed in the water at a predetermined position by the wires 22 and 22 of the winches 21 and 21 provided at a plurality of predetermined positions on the float 20, and a strainer 23 is attached to the tip. ing.

The high-pressure water injection device 11 uses a plurality of high-pressure hoses 24, 24 to supply high-pressure water from a water discharge pump 10 attached to a carriage 9, and the leading ends of the high-pressure hoses 24, 24 are connected to the leading end of the discharge hose 7. Installed to be located.
In addition, you may attach so that the front-end | tip part of the high-pressure hoses 24 and 24 may be located in the outer wall surface of the discharge hose 7, or may be attached so that it may be located in the strainer 23 from the inside of the discharge hose 7.

  The earth and sand sorting tank 12 is formed on the bottom surface of the inclined surface so that the bulldozer 26 can be inserted from the passage 25, and a partition wall 27 is formed on the river side so that water can be discharged by overflow.

The dam drooping device 1 having the above-described structure opens the opening / closing valve 4 of the drain port 5 so that the water stored in the dam 2 is a space portion of the outer peripheral portion of the discharge hose 7 of the discharge hose fitting 6 of the drain port 5. It passes through 28 and is drained vigorously.
Since a large suction force acts in the discharge hose 7 due to the momentum of the drainage, the earth and sand 3 and water accumulated through the strainer 23 at the tip are sucked and discharged from the drain outlet 5.
In order to efficiently suck the accumulated earth and sand into the discharge hose 7, high pressure water is jetted onto the earth and sand 2 sucked from the tip of the discharge hose 7 by the high pressure water jet device 11.
Moreover, since the tip part of the discharge hose 7 can be moved by moving the carriage 9, the tip part of the discharge hose 7 is moved to the accumulated earth and sand part and the earth and sand at the part is sucked and discharged. Can do.
The trolley 9 may be operated by using a plurality of anchor ropes each having an anchor attached to the tip thereof, while being fixed at a predetermined position.
In addition, a bellows may be interposed in the bent portion of the discharge hose 7 as necessary so that it can be freely bent in any direction.
[Different forms for carrying out the invention]

  Next, different modes for carrying out the present invention shown in FIGS. 7 to 20 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

  The second embodiment for carrying out the present invention shown in FIGS. 7 to 9 is mainly different from the best first embodiment for carrying out the present invention in that the bellows tube 29 is provided at predetermined intervals. The rear end of the discharged hose 7A is supported by the yagura 30 installed in the dam 2, and a plurality of floats 31 are installed in the central portion of the discharged hose 7A so as to be positioned on the water surface. Even with the dam drooping apparatus 1A configured as described above, the same effects as those of the best first embodiment for carrying out the present invention can be obtained.

  The third embodiment for carrying out the present invention shown in FIGS. 10 to 13 is mainly different from the best first embodiment for carrying out the present invention in that a guide having an orifice 32 formed at the tip portion. A discharge hose attachment 6A having a cylinder 16A and a grid-shaped discharge hose support 19 having a diameter larger than the diameter of the drain port 5 is used, and the rear end of the discharge hose 7 is connected to the orifice 32 of the guide cylinder 16A. Even in the dam drenching device 1B configured as described above, the same function and effect as those of the best mode for carrying out the present invention can be obtained in that it is arranged at a site that is efficiently sucked by the action. .

  The fourth embodiment for carrying out the present invention shown in FIGS. 14 to 17 is mainly different from the third embodiment for carrying out the present invention in that the rear end portion of the discharge hose 7 is provided in the orifice 32. The discharge hose attachment 6B including the insertion tube 33 to be inserted and the guide tube 16B communicating with the insertion hole 33 and having the discharge passage 34 opened in the reduced diameter portion of the orifice 32 is used in this way. Even in the dam drooping apparatus 1C, the same effect as the third embodiment for carrying out the present invention can be obtained.

  The fifth embodiment for carrying out the present invention shown in FIGS. 18 to 20 is mainly different from the fourth embodiment for carrying out the present invention in that a drain hose fitting is attached to the water intake 35 for power generation. 6B is used to attach the discharge hose 7 and to provide a branch water channel 39 including an opening / closing valve 38 for guiding water containing earth and sand led from the water intake 35 to the earth and sand sorting tank 12 through a pipe line 37 to the generator 36. Even in the dam drooping device 1D configured as described above, the same effects as those of the fourth embodiment for carrying out the present invention can be obtained.

  The sixth embodiment for carrying out the present invention shown in FIG. 21 and FIG. 22 is mainly different from the second embodiment for carrying out the present invention in that the drainage is provided at the inner portion of the drainage port 5 of the dam 2A. A drainage hose provided with an introduction drainage basin 40 that can secure a sufficient path, and having a grid-like drainage hose support 19 having a diameter larger than the diameter of the introduction drainage basin 40 at the tip of the introduction drainage basin 40. The dam drenching device 1E constructed as described above can obtain the same operation and effect as the second embodiment for carrying out the present invention and the drain outlet of the dam 2 in that the fixture 6C is attached. 5 can be easily installed even on a relatively thin dam 2A by attaching the discharge hose fitting 6C to the pipe 5 through the introduction drain 40.

  The seventh embodiment for carrying out the present invention shown in FIG. 23 and FIG. 24 is mainly different from the sixth embodiment for carrying out the present invention in that the tip portion is outside the drain port 5 of the dam 2A. The dam drenching device 1F configured using such a discharge hose attachment 6D is used in that it uses a discharge hose attachment 6D that uses a case body 17A that can sufficiently secure a drainage channel. Also, the same effects as those of the sixth embodiment for carrying out the present invention can be obtained.

  The present invention is utilized in the industry of manufacturing dredging devices for dams.

The top view of the best 1st form for implementing this invention. Sectional drawing which follows the 2-2 line of FIG. Explanatory drawing of the discharge hose attachment of the best 1st form for implementing this invention. FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. Explanatory drawing of the earth-and-sand sorting tank of the best 1st form for implementing this invention. The top view of the 2nd form for carrying out the present invention. Sectional drawing which follows the 8-8 line of FIG. FIG. 9 is an enlarged cross-sectional view taken along line 9-9 in FIG. 7. The top view of the 3rd form for carrying out the present invention. Sectional drawing which follows the 11-11 line of FIG. Explanatory drawing of the discharge hose attachment tool of the 3rd form for implementing this invention. The expanded sectional view which follows the 13-13 line of FIG. The top view of the 4th form for carrying out the present invention. FIG. 15 is a sectional view taken along line 15-15 in FIG. 14; Explanatory drawing of the discharge hose attachment tool of the 4th form for implementing this invention. The expanded sectional view which follows the 17-17 line of FIG. The top view of the 5th form for implementing this invention. FIG. 19 is a cross-sectional view taken along line 19-19 of FIG. Explanatory drawing of the branch waterway of the 5th form for implementing this invention. The top view of the 6th form for carrying out the present invention. FIG. 22 is an enlarged sectional view taken along line 22-22 in FIG. The top view of the 7th form for implementing this invention. FIG. 24 is an enlarged sectional view taken along line 24-24 in FIG.

Explanation of symbols

1, 1A, 1B, 1C, 1D, 1E, 1F: dam dredging device,
2, 2A: Dam, 3: Sediment
4: Open / close valve, 5: Drain port,
6, 6A, 6B, 6C, 6D: discharge hose fittings,
7, 7A: discharge hose, 8: wire,
9: trolley, 10: water discharge pump,
11: High-pressure water injection device, 12: Sediment sorting tank,
13: Flange, 14: Anchor bolt,
15: support part, 16, 16A, 16B: guide tube,
17, 17A: Case body, 18: Bolt,
19: Discharge hose support, 20: Float,
21: winch, 22: wire,
23: Strainer, 24: High pressure hose,
25: Passage, 26: Bulldozer,
27: Partition wall, 28: Space part,
29: Bellows tube, 30: Yagura,
31: Float, 32: Orifice,
33: insertion hole, 34: discharge passage,
35: Water intake, 36: Generator
37: pipeline, 38: on-off valve,
39: Branch waterway, 40: Introduction drainage dredger.

Claims (2)

Inside the dam's drain or intake, the tip with a gap and a rear end attached so that the drainage flowing through the drain or intake will be attached to the site where the sediment in the dam has accumulated A discharge hose such as earth and sand that can be positioned, and a high-pressure water injection device that facilitates the suction of earth and sand by injecting high-pressure water into the earth and sand sucked by the discharge hose from a portion near the tip of the discharge hose A dredging device for dams. Inside the dam's drain or intake, the tip with a gap and a rear end attached so that the drainage flowing through the drain or intake will be attached to the site where the sediment in the dam has accumulated A discharge hose such as earth and sand that can be positioned, and a high-pressure water injection device that injects high-pressure water into the earth and sand sucked by the discharge hose from a portion near the tip of the discharge hose, and facilitates the suction of earth and sand, A dredging apparatus for a dam characterized by comprising a sediment sorting tank that receives drainage from the drainage port or intake port and earth and sand discharged by the discharge hose.

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