JP2018178654A - Excavation method and machine in buried object exploration - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop and provide a simple excavation method and device in buried object exploration which can easily explore a buried object and which does not destroy natural environment in an exploration site after an exploration.SOLUTION: An excavation method in a buried pipe exploration for exploring a buried site of a buried pipe (Y) buried along a guard rail (X) in an express highway comprises: injecting high pressure water from a jet nozzle pipe (10a) to excavate; and sucking and recovering excavated sediment and water used for the excavation by a vacuum pipe (10b). An excavation device is also provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drilling method and a drilling apparatus in buried object exploration, and more particularly to a drilling method and a drilling apparatus for searching a buried pipe buried along a guardrail installed at a highway side.

    Heretofore, various drilling methods and drilling rigs in buried object exploration have been developed and implemented. For example, as in Patent Document 1 and Patent Document 2.

JP-A-5-107366 JP-A-7-120550

  However, it is not necessary to use a complicated method or apparatus using electromagnetic waves or alternating current as disclosed in the above-mentioned documents, and a simple method or apparatus is required to search for buried objects in a limited place to some extent. It is done.

  The present application is for searching for the position of a buried object (buried pipe) containing cables such as an optical fiber cable and the like outside a guardrail installed along a road shoulder of a highway, and the buried object is a highway Buried in the ground along the

  The purpose is to find the underground pipe located in the ground where the trouble occurs in the cable inside the buried pipe etc., but in each case it is possible to use the large pipe excavating machine such as a power shovel etc. Were searching for the burial place of

  However, on expressways in mountainous areas, there are many places where mountains are approaching or shoulders are approaching in the vicinity of the road shoulder, and bringing large excavators such as the aforementioned power shovels into the narrow places Even if it can be brought in, it is possible that a large-sized excavating machine may damage the buried pipe storing the important optical fiber cable, resulting in a serious accident.

  Therefore, in order to solve the above-mentioned problems, the present invention is capable of easily searching for a buried object and, after the exploration, does not destroy the natural environment of the exploration site by work. To develop and provide

The drilling method in buried pipe exploration that solves this problem is
An excavation method for finding the buried position of a buried pipe buried along a highway guardrail,
The high pressure water is injected from the jet nozzle pipe and excavated,
And, it is characterized in that the earth and sand which has been excavated and the water used for excavating are suctioned and recovered by a vacuum pipe.

And
Sediment water which is sucked and collected by the vacuum pipe is separated and processed in the sediment water separation tank,
Treated earth and sand are drained, and the treated water is returned to the water tank and reused for drilling.

Also,
Drilling equipment in buried object exploration,
A drilling rig for finding a buried position of a buried pipe buried along a highway guardrail,
An operating unit that digs into the ground;
It consists of a supply and recovery unit that is mounted on a vehicle and supports drilling operations,
The working part is on the outside of the guardrail,
The supply and recovery unit is located on the expressway,
Both parts are characterized in that they are in communication with each other by a tube such as a hose.

further,
The working unit is
A jet nozzle tube that jets into the ground;
One or more suction tubes in the vicinity of the jet nozzle tube;
It is characterized in that it is an excavated portion main body comprising a split weir having a partition wall for splitting the tip end of the jet nozzle tube and the mouth end of the vacuum tube.

Also,
The supply and recovery unit
A high pressure water supply to the jet nozzle tube, a water tank fed via a high pressure jet pump;
It is characterized in that it comprises a sediment water separation tank for sucking and collecting sediment water with a vacuum pump from the vacuum pipe.

further,
A water removal tank is provided between the sediment water separation tank and the vacuum pump.

  According to the present invention, when the position of the buried pipe is to be drilled, high-pressure water is injected to the drilling site using the jet nozzle pipe, so that drilling can be carried out extremely easily, and a large-sized digging machine is unnecessary. In addition, the jetted high pressure water is simultaneously sucked and collected while being jetted, so that it does not leak to the surroundings and has an effect of not destroying the natural environment.

  In addition, the high pressure water injected for the trial drilling is sediment water (contaminated water) containing sediment, and when suction and recovery is performed, the sediment and water are separated by the sediment water separation tank, and the water is re-used as high pressure water. Because it can be used, it does not require a large amount of water and does not occupy a large amount of space on a freeway with a relatively compact device.

It is explanatory drawing which shows one Example of the drilling apparatus of this invention. It is sectional drawing which notched one part which shows one Example of the action | operation part (A) used for this invention. It is the side view which notched one part which shows one Example of the action | operation part (A) used for this invention. An example of a supply / collection | recovery part (B) used for this invention is shown, (A) is a side view, (B) is an aa sectional view in FIG. 4 (A). It is explanatory drawing which shows one Example of the use condition of this invention, and is expansion explanatory drawing of (a) in FIG. It is the front view which notched one part which shows one Example of the earth and sand water separation tank used for this invention. It is the top view which notched one part which shows one Example of the earth and sand water separation tank used for this invention. FIG. 2 is a partially cutaway sectional view showing an embodiment of a water removal tank used in the present invention. It is a front view which shows one Example of the switchboard which this invention uses.

  Hereinafter, the present invention will be described in detail. In the present invention, the present invention is not limited to the following description, and can be appropriately modified without departing from the scope of the present invention.

  Next, one embodiment of the "invention of the method" in the present invention will be described in detail with reference to the drawings. The buried position of a buried pipe (Y) buried along a guardrail (X) of a highway is searched The drilling method is as follows: high pressure water is jetted from the jet nozzle pipe (10a) and excavated, and the excavated earth and sand and water used for excavating are sucked and recovered by the vacuum pipe (10b). It consists of an excavating method in buried pipe exploration, which is characterized. In addition, Xa in FIG. 1 is a support | pillar which supports a guard rail (X).

  Then, the sediment water to be sucked and collected by the vacuum pipe (10b) is separated and processed in the sediment water separation tank (40), the treated soil is discharged from the sediment outlet (40d), and the treated water is It consists of a drilling method in buried pipe exploration characterized by returning to the water tank (30) and reusing for drilling.

  Next, one embodiment of the "invention of the invention" in the present invention will be described in detail with reference to the drawings. The buried position of a buried pipe (Y) buried along a guardrail (X) of a highway is searched Drilling equipment, which comprises: an operating unit (A) for excavating toward the ground; and a supply / recovery unit (B) mounted on a vehicle (60) to support the drilling operation; A) is placed outside the guardrail (X), the supply / recovery part (B) is placed inside the guardrail (X), ie, inside the expressway, both parts are the suction hose (10f) and the discharge hose (10g) etc. It connects by pipe | tubes, etc. It is comprised from the excavation equipment in the buried object search characterized by the above-mentioned.

  The actuating portion (A) comprises a jet nozzle tube (10a) for radiating into the ground, one or more vacuum tubes (10b) in the vicinity of the jet nozzle tube, and a tip of the jet nozzle tube (10a) It is a digging device in buried object exploration which comprises an excavated part main body (10) which consists of a diversion weir (10c) having a partition wall (10d) which branches off from the mouth end of the vacuum pipe (10b). A skirt (10e) made of a rubber plate is provided around the tip of the branch weir (10c) to form a sealed portion, and high pressure water injected to the exploration site is prevented from splashing around and damaging the natural environment. The suction force of the vacuum pump (50) for suction may not be reduced.

  The supply / recovery unit (B) supplies a high pressure water to the jet nozzle pipe (10a), a high pressure jet pump (20), and a water tank (30) fed via the high pressure jet pump (20) An earth and sand water separation tank (40) for suctioning and collecting earth and sand water from the vacuum pipe (10b) through a vacuum pump (50), and equipment such as these pumps and tanks can be used in a vehicle (60) It consists of a drilling device in the buried object survey which is carried and carried on the expressway.

  Furthermore, when one embodiment of the sediment water separation tank (40) constituting the device of the present invention is described in detail, the shape is a double cylinder, the inner pipe is a sediment deposition part (40a), and the upper part A removable cover (40b) is provided on the bottom, a suction port (40c) for sediment water is provided on the cover, a pedestal is provided below the sediment deposition section (40a), and water is shut off with rubber packing. A soil removal lid (40d) is provided to enhance sealing performance and to facilitate discharge of soil when the lid is opened. A mesh-like filtration material (40e) is stretched around the sediment deposition part (40a).

  In addition, as an example of the reticulated filter material (40e), from the inside of the sediment deposition portion (40a), a mesh # 100, a filter # 17 different from the mesh # 500, and a non-woven fabric of t-2 mm are formed in triples. It is done. In addition, it is not limited to this structure.

  And the said earth and sand water separation tank (40) is comprised from the double pipe of an outer pipe and an inner pipe, and the outer pipe is a filtration water tank (40f) which filters the earth and sand water in the earth and sand accumulation part (40a) which is an inner pipe. In the filtration water tank, a pedestal (40 g) is provided above the bottom of the filtration water tank, and a submersible pump (40 h) placed on the pedestal is disposed. The filtered water filtered by the submersible pump and free of soil, sand and gravel is sent to a water tank (30).

  Further, the submersible pump (40h) is provided with a float switch (40i), and from the top, a float switch (40iA) for stopping vacuum, a float switch (40iB) for starting submersion pump discharge, and submersible pump drainage stop Are provided in the order of the float switch (40iC). Also, by providing a water level gauge (40j) made of a transparent PVC pipe on the outer wall of the filtration tank (40f) of the sediment water separation tank (40), the water level in the filtration tank (40f) is confirmed from the outside It is configured to be able to.

  The water removal tank (70) is provided with a desorption lid (70a) covered with rubber packing or the like at the top, and in the water removal tank, the sediment is separated from the sediment water separation tank (40). The remaining water delivered to the water tank (30) is delivered, which is plastic, inverted conical, and vacuums air through the perforated cap (70b) which forms the drainage door. It is sent to a pump (50) and configured to protect the life of the vacuum pump (50) by removing moisture in the water removal tank and sending dry air.

The method of using this drilling apparatus will be described based on the control panel (80) of FIG.
1. Turn on the use power.
2. Make the high pressure jet pump (20) "automatic".
3. Set the vacuum pump (50) to "automatic".
4. The submersible pump (40h) is also set to "automatic".
5. Set the tip of the jet nozzle tube (10a) to the drilling site.
6. The jet opening / closing lever (10i) is pulled to inject high pressure water.
7. The vacuum opening and closing lever (10h) is opened and suction is started.
8. In the filtration water tank (40f) of the sediment water separation tank (40), when the filtered water for reuse is accumulated in the jet nozzle pipe (10a) to the discharge position, the submersible pump is operated by the float switch (40iB) of the submersible pump (40h) Discharge.
9. When the vacuum opening / closing lever (10h) is closed, the suction is completed (the vacuum pump (50) is also stopped. Stop the vacuum pump (50) in conjunction.
10. When the submersible pump (40h) stops, the vacuum pump (50) starts operation.
11. When discharging sediment water in the sediment water separation tank (40), turn off the power.
12. Drill down the working part (A) appropriately according to the drilling depth. The operation panel (80) may be provided on the surface of any device of the supply / collection unit (B).
In addition, the operator performs the operation of the excavating portion main body (10) of the operating portion (A).

  It has industrial applicability by establishing and implementing the technique of the drilling method and equipment in the buried object exploration of the present invention.

DESCRIPTION OF SYMBOLS 10 Excavating part main body 10a Jet nozzle pipe 10b Vacuum pipe 10c Branching 10d Partition wall 10e Skirt 10f Suction hose 10g Discharge hose 10h Vacuum opening / closing lever 10i Jet opening / closing lever
Reference Signs List 20 high pressure jet pump 30 water tank 40 sediment water separation tank 40a sediment accumulation unit 40b lid 40c suction port 40d sediment taking lid 40e filter medium 40f filtration water tank 40g frame 40h submersible pump 40i float switch 40j water gauge 50 vacuum pump 60 vehicle 70 water Removal tank 70a Desorption lid 70b Perforated cap 80 Operation panel A Operating part B Supply and recovery part X Guardrail Xa Support post Y Burial (buried pipe)

Claims (6)

An excavation method for finding the buried position of a buried pipe buried along a highway guardrail,
A digging method in buried pipe exploration characterized in that high pressure water is jetted from a jet nozzle pipe and excavated, and excavated earth and sand and water used for excavating are sucked and recovered by a vacuum pipe. Sediment water which is sucked and collected by the vacuum pipe is separated and processed in the sediment water separation tank,
The method according to claim 1, wherein the treated soil is discharged and the treated water is returned to the water tank for reuse in drilling. A drilling rig for finding a buried position of a buried pipe buried along a highway guardrail,
It consists of an operation unit for drilling into the ground and a supply / recovery unit mounted on the vehicle to support the drilling operation,
The operating part is located outside the guardrail, and the supply and recovery part is located in the expressway,
Both parts are connected by pipes, such as a hose, The excavation equipment in buried object exploration characterized by the above-mentioned. The working unit is
A jet nozzle tube that jets into the ground;
One or more suction tubes in the vicinity of the jet nozzle tube;
The digging apparatus according to claim 3, wherein the digging body is a digging section main body comprising a split weir having a partition wall for splitting the tip end of the jet nozzle tube and the mouth end of the vacuum tube. The supply and recovery unit
A high pressure water supply to the jet nozzle tube, a water tank fed via a high pressure jet pump;
The excavation equipment in buried object exploration according to claim 3 or 4 which consists of a sediment water separation tank which attracts and recovers sediment water with a vacuum pump from said vacuum pipe. The excavation equipment according to claim 5, wherein a water removal tank is provided between the sediment water separation tank and the vacuum pump.

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