JP5923071B2 - Method of passing working line to transverse pipe in fluid conduit and apparatus used in the method - Google Patents

Description

The present invention relates to a curved pipe connected in a flow state between opposing vertical holes in a fluid pipe via a straight horizontal pipe, and a passage in which height and tension are adjusted in the horizontal pipe between the vertical holes. A method of arranging a wire, in particular , a method of arranging a working wire having a work body attached to a part thereof in a transverse pipe between vertical holes and adjusting the height and tension, and a method used for the method Relates to the device. In particular, the present invention relates to a method for providing a line to a so-called overpass pipe in a sewer line. The “straight transverse pipe” is not limited to the horizontal, but includes an inclined pipe.

The manholes in the overlying part of the sewer pipes and the earth and sand collected in the cross pipes obstruct the circulation of the sewer, and various methods have been proposed for the removal.
However, it is obvious that the measurement for grasping the state of sedimentation in the crossing pipe is important prior to the removal of sediment, but the technology related to the measurement in the crossing pipe in the overpass has been Because of the harsh conditions, nothing has been done, and a technology that consistently performs measurement, removal, and cleaning work has not yet been established.
In addition, as a known example of the above-described removal method, Japanese Patent Laid-Open No. 10-131278 discloses a method in which a large spherical body is attached to a wire, and the spherical body is moved backward in the transverse pipe to remove deposits in the transverse pipe. However, according to this, a heavy load load is applied to the line, and a load is applied to the pulley installed in the pipe opening, and damage to the pipe opening cannot be avoided. Furthermore, no specific measures are taken as to how to install the pulley at the pipe opening.
Such problems / situations are not limited to sewer pipes, but are the same in other pipes (water pipes, pipelines).

JP-A-10-131278

The present invention has been made in view of the above circumstances, and consistently performs the work of measuring the state of adhesion of deposits (deposits) in the transverse pipe between the opposing vertical holes in the fluid conduit, and the subsequent work of removing the deposits. The purpose is to establish a construction method that can be carried out with good performance.
For this reason, the present invention provides a strong traction force by the winch through a line extending from the vertical hole to the transverse pipe, and this problem can be solved by fully protecting the pipe opening. It was made based on the knowledge that it can be achieved.

The method for connecting to the crossing pipe in the fluid conduit of the present invention, in particular, the method for connecting the working line having a work body attached to a part thereof, and the apparatus used in the method are specifically described below. The configuration of
(First invention)
A first aspect of the present invention relates to a method for passing a working line to a transverse pipe in a fluid pipe,
A fluid conduit for fluid flow from upstream to downstream,
In a bent pipe line connected to a flow through a straight transverse pipe between opposed vertical holes in the fluid pipe line,
a) a long vertical part having a groove space inside,
b) A bent portion which forms a part of the pipe opening protecting portion and has a groove space inside, and has a predetermined curvature continuously provided at the lower end of the vertical portion, and has a quadrant shape on the center line on the back surface thereof. The flat plate is fixed along the curvature,
c) A short horizontal portion that forms a surplus portion of the pipe opening protection portion and has a groove space therein, and is provided continuously to the bent portion.
d) A guideway for a line is formed on the outer surface of the vertical portion, the bent portion, and the horizontal portion, and with a groove communicating with the groove space along the longitudinal direction.
The rail member made of a, b, c, and d is arranged such that a vertical side portion of a quadrant-shaped flat plate of the tube port protecting portion abuts against a wall surface of the standing hole and a horizontal portion of the tube port protecting portion is Abuts the top of the tube mouth of the transverse tube, and stands up along the respective wall surfaces of the opposed vertical holes;
A work line having a work body attached to a part of each winch disposed above the compatible hole is guided with a predetermined tension along the guide path of the rail material,
Arranging working lines with adjusted height and tension in the transverse pipe between the vertical holes,
It is characterized by that.
In the above,
1) “Fluid pipeline” includes water and sewage systems and pipelines.
2) The “straight line” of the transverse pipe is not limited to horizontal, and does not exclude the inclined state.
3) The “curved portion having a predetermined curvature” is specifically shown in the following embodiment, but is not limited to the embodiment, and includes a portion having an equivalent function. That is, the parabolic curvature and the elliptical curvature are not excluded except that the curvature is a perfect circle.
4) In the following embodiment, the “guidance path for a line” is a C-type channel, but is not limited to this, and includes a function having the same function.
5) When the "work body" is introduced into the pipe opening, it is set to a height (diameter) and length that does not collide with the pipe opening, and its weight is regulated to a value that does not give excessive deflection to the line. The

(Function)
In the implementation of the method of the present invention, the working line is arranged on the bent pipe line prior to the installation of the rail material into the vertical hole, or along with the installation of the rail material into the vertical hole. It can be done, or even after the rail material has been installed in the vertical hole.
In the introduction of the tension to the working line by the winch, the pipe port is protected by the pipe port protecting part of the rail material, and the pipe port is not damaged.
In the introduction of the tension to the working line by the winch, the working line is arranged along the bent portion, so that there is no stress concentration in the bent portion, and the tension is transmitted evenly.
By arranging the rail port protecting portion facing the tube port, the working line takes an arrangement in which the height is adjusted in the transverse tube.
The work body moves on the basis of the working line, and the movement is not shaken and smooth work is performed.
Further, when the work body enters the transverse pipe from the vertical hole by the rail material, the work body is regulated to a predetermined height and length, and enters the pipe port without colliding.
Furthermore, the movement of the work body in the crossing pipe is a movement that anticipates the expected slack / inclination of the working line, and is a predictable movement.
The flat plate on the back of the bent part abuts against the wall surface of the vertical hole at the vertical surface to determine the distance between the rail material and the wall surface of the vertical hole, and to the wall surface of the vertical hole against the bending moment due to the tensile force of the working wire. Gives a moment of resistance at the abutting part and gives a large bending resistance.

(Second invention)
A second aspect of the present invention relates to a method of passing a working line to a transverse pipe in a fluid pipe,
A fluid conduit for fluid flow from upstream to downstream,
In a bent pipe line connected to a flow through a straight transverse pipe between opposed vertical holes in the fluid pipe line,
a) a long vertical part having a groove space inside,
b) A bent portion which forms a part of the pipe opening protecting portion and has a groove space inside, and has a predetermined curvature continuously provided at the lower end of the vertical portion, and has a quadrant shape on the center line on the back surface thereof. The flat plate is fixed along the curvature,
c) A short horizontal portion that forms a surplus portion of the pipe opening protection portion and has a groove space therein, and is provided continuously to the bent portion.
d) A guideway for a line is formed on the outer surface of the vertical portion, the bent portion, and the horizontal portion, and with a groove communicating with the groove space along the longitudinal direction.
The rail member made of a, b, c, d is in contact with the vertical side portion of the quadrant-shaped flat plate of the tube port protecting portion against the wall surface of the standing hole, and the horizontal portion of the tube port protecting portion. Abutting on the top of the mouth of the transverse pipe through one or more level adjusting members interposed on the upper surface, and standing up along the respective wall surfaces of the opposed vertical holes;
A work line having a work body attached to a part of each winch disposed above the compatible hole is guided with a predetermined tension along the guide path of the rail material,
Arranging working lines with adjusted height and tension in the transverse pipe between the vertical holes,
It is characterized by that.
In the above,
1) “Fluid pipeline” includes water and sewage systems and pipelines.
2) The “straight line” of the transverse pipe is not limited to horizontal, and does not exclude the inclined state.
3) The “curved portion having a predetermined curvature” is specifically shown in the following embodiment, but is not limited to the embodiment, and includes a portion having an equivalent function. That is, the parabolic curvature and the elliptical curvature are not excluded except that the curvature is a perfect circle.
4) In the following embodiment, the “guidance path for a line” is a C-type channel, but is not limited to this, and includes a function having the same function.
5) When the "work body" is introduced into the pipe opening, it is set to a height (diameter) and length that does not collide with the pipe opening, and its weight is regulated to a value that does not give excessive deflection to the line. The

(Function)
The height of the bent part of the rail material and the pipe port protecting part at the pipe port is adjusted by the intervention of the level adjusting material.
Moreover, it functions also as bending reinforcement of the bending part in a rail material, and a horizontal part.

(Third invention)
3rd of this invention is related with the rail material used for the wiring method of the working line to the cross pipe in a curved pipe line, As described in Claim 3,
In a bent pipe that forms a flow of fluid from upstream to downstream, and that is connected in a flowing state between opposing vertical holes in the fluid pipe through a straight transverse pipe, Rail material comprising the following a, b, c, d used in a wiring method in which a working wire having a work body attached to a part of which is adjusted in height and tension in a transverse pipe between holes Because
a) a long vertical part having a groove space inside,
b) A bent portion which forms a part of the pipe opening protecting portion and has a groove space inside, and has a predetermined curvature continuously provided at the lower end of the vertical portion, and has a quadrant shape on the center line on the back surface thereof. The flat plate is fixed along the curvature,
c) A short horizontal portion that forms a surplus portion of the pipe opening protection portion and has a groove space therein, and is provided continuously to the bent portion.
d) A through-passage guide path is formed with a groove communicating with the groove space along the longitudinal direction on the outer surface of the vertical part, the bent part and the horizontal part,
The horizontal part of the pipe port protecting part is in contact with the top part of the pipe port of the transverse pipe, and the vertical side of the quadrant plate of the pipe port protecting part is in contact with the respective wall surfaces of the opposed vertical holes. Used,
It is characterized by that.
In the above,
1) The “predetermined curvature” is a quadrant of curvature in the following embodiments, but is not limited to this, and includes a parabolic locus and other equivalent functions.
2) In the following embodiments, the “passage guideway” is shown as a groove of a C-type channel, but is not limited to this, and includes one having the same function.

(Function)
In the use of the rail material of the present invention, the tube port protecting portion is made to face the tube port of the transverse tube, and is erected along the respective wall surfaces of the opposed vertical holes, and is disposed in advance in the curved pipeline. A working line, or a working line disposed with the rail material being installed in the vertical hole, or a working line disposed after the rail material is installed in the vertical hole, Is guided along the guide path of the rail material, and working lines having height and tension adjusted are arranged in the transverse pipe between the vertical holes.
In addition, a quadrant flat plate is fixed on the back of the bent portion with the same curvature, and the quadrant flat plate abuts against the wall surface of the vertical hole at its vertical surface, and the rail material and the wall surface of the vertical hole And a bending moment due to the pulling force of the working wire, a resistance moment is given at the site of contact with the wall surface of the vertical hole, and a large bending resistance is given.

According to the wiring method of the working line to the transverse pipe in the fluid conduit of the present invention, the following effects are obtained.
1) The load on the pipe port due to the working line during the line work is protected by the pipe port protecting portion of the rail material, and damage to the pipe port can be prevented. Alternatively, there is no work on the pipe opening (for example, fixing the pulley to the pipe opening), and damage to the pipe opening can be prevented.
2) The bent portion constituting the pipe opening protecting portion smoothly introduces the tension to the working line, and further, no stress concentration occurs in the movement of the working line, so that the operation of the instrument or equipment can be performed. It can be done smoothly.
3) By adjusting the height at the tube port by the tube port protecting portion of the rail material, the height of the working line in the transverse tube can be arbitrarily determined.
4) Since the working line is arranged in the transverse pipe with a predetermined height and tension adjusted, various works (especially measurement work and deposit removal work in the transverse pipe) are performed using the working line as a clue. Can be a foundation of integrated work) and can be carried out stably.
5) The work body moves on the basis of the working line, and there is no fluctuation in the movement, and the work can be carried out smoothly.
6) The movement of the work body in the crossing pipe is a movement that anticipates the expected slack / inclination of the working line, which is a predictable movement, and automatic control (or partial automatic control) of the work is possible. Easy.
7) The flat plate on the back of the bent part abuts against the wall surface of the vertical hole at the vertical surface, determines the distance between the rail material and the wall surface of the vertical hole, and also sets the vertical hole against the bending moment due to the tensile force of the working wire. A moment of resistance can be applied at the site of contact with the wall surface, and a large bending resistance can be applied.

The schematic block diagram of the overhanging part of the sewer pipe to which this invention is applied. FIG. The whole rail material side view. It is a fragmentary figure of a rail material, Comprising: (a) is 4-4 sectional view taken on the line of FIG. 3, (b) is a 4-direction arrow directional view of (a). The figure which shows the division | segmentation aspect of a rail material. The lower end part of a rail material is shown, (a) is the side view, (b) is a six-direction arrow view of (a). The partial cross section side view of a working device. The top view of a working device. The assembly figure to the rail material of the attachment trolley | bogie in the working body A. FIG. The partial cross section side view which shows the detailed structure of an attachment trolley | bogie (10 direction arrow line view of FIG. 11). The front view of an attachment trolley | bogie (11 direction arrow line view of FIG. 10). FIG. 14 is a longitudinal sectional view showing a configuration of a working body A (a sectional view taken along line 12-12 in FIG. 13). FIG. 13 is a cross-sectional view (a cross-sectional view taken along line 13-13 in FIG. 12) in which a part of the working body A is omitted. Detailed view showing the structure of the base of the measuring wing. The block diagram which shows the signal processing structure concerning the working body A. FIG. The flowchart which shows the operation | work process by the working body A. The flowchart which shows the operation | work process by the working body A. The partial cross section side view of the working body B (18 directional arrow line view of FIG. 19). The front view of the working body B (19 direction arrow view of FIG. 18). Implementation guideline for obstacle preliminary survey. The partial cross section whole side view which shows the embodiment in a pipeline.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for passing a crossing pipe in a fluid pipe of the present invention, in particular, a method for passing a working line to which a work body is attached, and an embodiment of an apparatus used in the method will be described with reference to the drawings. To do.
FIGS. 1-14 shows the application to the overhanging part of the sewer pipe line which is one Embodiment of this invention.

FIG. 1 shows an overhanging part of a general sewer line. In the figure, 1 is a human hole (1A is an upstream human hole, 1B is a downstream human hole), 2 is a transverse pipe line between the human holes 1A and 1B (an overpass pipe line), 3A is an upstream pipe line, 3B Indicates a downstream pipe line. A curved pipe line is constituted by the upstream side pipe line 3A, the upstream side human hole 1A, the transverse pipe 2, the downstream side human hole 1B, and the downstream side pipe line 3B. In addition, H is a roadbed on the ground surface, and I is deposits such as earth and sand in the overpass manhole.
Thus, in this overhanging portion, the rail material 5 is set up in the human hole 1 and is guided by the rail material 5 to guide the through wire 6. A work device S is disposed on the ground facing the opening 1a of the human hole 1, and winches 7 (7A is an upstream winch and 7B is a downstream winch) mounted on the work device S are connected to both ends of the line 6. Is wound and unwound to move the wire 6 and a necessary tension is introduced into the wire 6.

Hereinafter, the installation of the line 6 will be described according to the procedure.
(1) Conduction of the communication line 6 The communication line 6 is connected to the upstream human hole 1A, the overpass passage 2, the downstream human hole 1B, and the downstream ground from the upstream ground.
As for the conduction of the line 6 into the overpass passage 2, an injection nozzle that has been conventionally used is used in this embodiment, but other aspects are not excluded. Such an injection nozzle is known from the applicant's patent No. 2791502 (in the patent publication, a sewage pipe cleaning device).
FIG. 2 shows one drawing (FIG. 5) of the patent publication, wherein S is a cleaning device for a sewer pipe (injection nozzle), H is a high-pressure hose connected to the device S, I is a compressed air hose, J Is a drive unit including a reel, a high-pressure pump, and a compression unit.

(1a) An injection nozzle, a high-pressure water pump, and a hose are prepared on the ground.
The end of the wire (wire) 6 is connected to the injection nozzle, dropped together with the injection nozzle into the upstream human hole 1A, and the injection nozzle faces the pipe port of the upstream human hole 1A. Then, the jet nozzle is advanced by the jet (jet flow) propulsion so that the inside of the transverse pipe 2 is advanced toward the downstream side.
When the injection nozzle reaches the downstream side human hole 1B, the line of the injection nozzle is pulled up by the downstream side human hole 1B.
(1b) Attach the line 6 to the electric winch 7 of the work device S on the upstream and downstream ground portions. In this state, the line 6 is in a slack state, but a tension is quickly introduced into the line 6 as needed by driving the winch 7.

(2) Installation of rail material 5 (see Figs. 3 to 6)
The rail material 5 with a pipe opening protector is installed in the upstream side human hole 1A and the downstream side human hole 1B.
A level adjusting material 10 is appropriately added to the rail material 5 at the pipe opening portion.
3 to 6 show the detailed structure of the rail member 5 with a tube opening protector.
The rail material 5 is made of a long steel (particularly stainless steel) mold material, a so-called C-type channel, and is composed of vertical parts 5A, bent parts 5B, and horizontal parts 5C from the top.
The cross section of the mold material (C-type channel material) is composed of a back surface portion 12 (dimension A), both side surface portions 13 (dimension B), and a front surface portion 14 (dimension C). A groove space 16 is formed inside the material. As this embodiment, A12cm, B6cm, C2cm, and thickness t3.2mm are taken.

(Vertical part 5A) (refer FIGS. 3-5)
The vertical portion 5A is long and occupies the upper part of the rail member 5, and its length is determined with the human hole depth as a target.
Furthermore, the vertical portion 5A is configured with the divided bodies 100, and is elongated by adding the divided bodies 100 together. For this reason, each divided body 100 is formed with flanges 102 (upper flange 102a and lower flange 102b) at the upper and lower ends of the main body 101, the bolts 104 of the fasteners 103 are inserted into holes formed in the flanges, and nuts 105 are inserted. Tightened and joined. The length of the divided body 100 is 1 m as a standard, and handling by human power is easy.
The lower end of the vertical portion 5A is integrated with a bent portion 5B and a horizontal portion 5C which will be described later.
At the fixed position of the rail member 5, the upper end of the rail member 5, that is, the upper end of the vertical portion 5A protrudes to the ground portion and is fixedly held by the ground portion.
(Bent portion 5B) (see FIGS. 3 and 6)
The bent portion 5B is connected to the vertical portion 5A with a predetermined curvature (curvature radius) R. The R determines the distance (interval) between the rail member 5 and the wall surface of the human hole 1. In the present embodiment, for example, R takes 30 cm.
In the bent portion 5B, a quadrant-shaped flat plate, that is, an R (R) material 18 is fixed on the center line of the back surface of the back surface portion 12 of the rail material 5. 18a is the horizontal side, and 18b is the vertical side. The R material 18 has a predetermined thickness, and performs a stiffening function while maintaining a gap.
In the bent portion 5B, a mode in which a plurality of cylindrical rolling bearings (roller bearings) are arranged side by side facing the groove space 16 on the back surface portion 12 can be adopted. According to this aspect, the through wire 6 arranged in the rail member 5 is smoothly moved.
(Horizontal part 5C) (see FIGS. 3 and 6)
The horizontal portion 5C is connected to the bent portion 5B and abuts on the top of the pipe opening at a fixed position. The length of the horizontal portion 5C is determined by a length that does not hinder the insertion of the rail member 5 from the manhole opening 1a. In the present embodiment, when the opening takes 60 cm, the length is approximately 15 cm.
Thus, when the rail member 5 receives the required pulling force, the pipe portion of the horizontal portion 5C receives the maximum bending moment. For this reason, R material 18 bears reinforcement in the said part, Furthermore, it uses with the level adjustment material 10 shown in FIG. 3, FIG. 6, and raises stiffening.
At the tip of the horizontal portion 5C, a wide-mouthed portion 20 is formed for the convenience of movement of the line 6 (particularly in a mode in which a moving body is attached to the line 6). The wide-mouthed portion 20 has a so-called trumpet shape, 20a is a portion that spreads to the side (side widened portion), and 20b is a portion that spreads upward (upward spread portion). The upper expanding portion 20b is formed when the level adjusting material 10 is used, and is unnecessary when the level adjusting material 10 is not used.

Level adjustment material 10 (see FIGS. 3 and 6)
The level adjusting material 10 is disposed in contact with the upper surfaces of the bent portion 5B and the horizontal portion 5C. 10a is the upper surface, 10b is the side surface, and 10c is the lower surface. A groove is formed in the R portion of the level adjusting material 10 to receive the R material 18.
The level adjusting material 10 can be used in multiple stages as will be described later. The first stage also functions as a bending reinforcement for the bent portion 5B and the horizontal portion 5C in the rail member 5.

The rail material 5 is installed in the manhole 1 as follows.
(2a)
The lower end of the rail member 5, that is, the lowermost end of the vertical portion 5A, the bent portion 5B, and the horizontal portion 5C are inserted into the human hole 1 through the opening 1a of the human hole 1, and the upper end is once held by the ground portion. Then, the divided body 100 of the vertical portion 5A is added on the flange 102 through the flange 102 and inserted into the human hole 1 again. A level adjusting material 10 is appropriately attached to the lower end of the rail material 5.
Thereafter, the vertical portion 5A of the rail material 5 is sequentially added by the divided body 100, and the long rail material 5 is obtained.
When the lower end of the rail member 5 is at a position facing the pipe opening, the upper surface of the horizontal part 5C is pushed in from the top part of the pipe opening while keeping a certain distance, and then the rail member 5 is pulled up, the upper surface of the horizontal part 5C, Alternatively, the upper surface of the level adjusting material 10 is brought into contact with the top of the pipe opening.
(2b)
The vertical portion 5A of the rail member 5 is arranged with a predetermined distance from the inner wall of the human hole 1 by the R member 18 at the lower end thereof. That is, in this embodiment, it is arranged with an interval of 30 cm from the inner wall of the human hole 1.
In the above-ground part, the upper end of the rail member 5 is fixed (in the present embodiment, a hanging device 120 described later is used).

(3) Placement of the wire The upstream winch 7A and the downstream winch 7B of the work device S are driven, and the loose wire 6 is inserted into the groove of the vertical portion 5A and the bent portion 5B of the rail member 5 with the tube protector. 15 is guided into the groove space 16 and is wound around the downstream winch 7B along the groove space 16.
Here, a steel wire (wire) is used as the through wire, the diameter φ12 mm is standard, and the unit length mass w 0.53 kg / m is adopted. The winch 7 is used with 1.3 tons as the standard on both the upstream and downstream sides.

Various functions of the working device S are used in the above work and the following work.
7 and 8 show details of the working device S. FIG.
The working device S has a frame 22 as a base and can be moved by front and rear wheels 23 (front wheels 23A and rear wheels 23B). The front outrigger 24 is pulled forward to be fixed on the ground surface. (Ie take the reaction force). The frame 22 has a square box shape, and is composed of an upper frame 22A, a lower frame 22B, and four columnar members 22C that connect the upper frame 22A and the lower frame 22B. Further, these frame materials (22A, 22B, 22C) including other rigid materials. The front wheel 23A and the rear wheel 23B of the wheel 23 are caster type, and can be moved laterally. The outrigger 24 has a horizontal portion (horizontal member) 24a that can be stored and pulled out in the upper frame 22A, and a vertical portion (vertical member) 24b is disposed at the end of the horizontal portion 24a.
A winch 7 is installed at the rear of the upper portion of the frame 22, and the through wire 6 is wound around the winding drum 7a and is rotationally driven by a drive unit (electric motor) 7b. A displacement amount sensor 25 is disposed in the drive unit 7b, measures the amount of rotation of the winch 7, and measures the amount of winding / rewinding of the line 6, that is, the amount of displacement of the line 6.
A rod-like pulley support 27 is attached to a beam member (frame material) 22A ′, which is horizontally mounted in a rigid contact with the central portion of the upper frame 22A of the frame 22, with a pin connection so as to be rotatable up and down. A pulley 28 is rotatably attached to the tip of the shaft. A load sensor 29 is interposed between the lower surface of the pulley support 27 and the upper surface of the upper frame 22A at the front portion of the frame 22 (lower than the other upper frame 22A). The load to be applied, and hence the tension applied to the line 6 is measured.
With respect to the outrigger 24, a stationary plate 24c with a height adjusting function is disposed at the lower end of the vertical portion (vertical material) 24b. By operating the stationary plate 24c with the height adjusting function, the ground surface is evenly pressed, and the work device S is securely fixed without wobbling.

(Hanging device 120)
In addition to the above configuration, the working device S includes a suspension device 120 that suspends the rail material 5, and the rail material 5 is held (immobilized) via the suspension device 120.
The suspension device 120 includes two pillar members 121 erected on the frame 22 (upper frame 22 </ b> A) of the working device S so as to straddle the pulley support 27, and a beam member placed and fixed on the upper end portion of the pillar member 121. 122, a bracket material 123 protruding forward in a horizontal direction from the beam member 122, a winch 124 disposed on the beam member 122, a pulley 125 disposed on the front end of the bracket 123, The wire 126 fed out from the winch 124 is fixed to the upper end of the rail member 5 via the pulley 125.
The rail material 5 is lifted by the winding of the winch 124, the horizontal portion 5C at the lower end of the rail material 5 is engaged with the top of the tube mouth of the transverse tube 2 and fixed, and a predetermined tension is applied to the wire 126 to provide the rail material 5. Is fixed (immobilized).
In addition, the suspension holding | maintenance of the rail material 5 is made not only by this aspect but by making the upper end of the rail material 5 fixedly hold | grip by a ground part.

The stationary line 6 is fixed as follows.
(3a)
The lower end of the communication line 6 in the upstream human hole 1A and the communication line 6 in the downstream human hole 1B is connected to the lower end of the human hole 1 by using an appropriate jig (for example, a long bar with a hanging metal fitting attached to the lower end). The central portion or the vicinity of the front surface of the rail member 5 is held, the downstream winch 7B is driven, and the through wire 6 is stretched without slackening.
The vertical portions of the communication line 6 in the upstream human hole 1 </ b> A and the communication line 6 in the downstream human hole 1 </ b> B are guided to the groove 15 of the rail member 5 and are inserted into the groove space 16.
(3b)
The downstream winch 7B is further driven to guide the horizontal passage 6 inside the transverse pipe 2 into the groove 15 and the groove space 16 at the lower end portion (bent portion 5B, horizontal portion 5C) of the rail member 5.
As described above, the through wire 6 is inserted into the groove space 16 of the rail material 5 at the position corresponding to the rail material 5, and the installation work of the through wire 6 is completed.

(4) Introduction of tension to the communication line A predetermined tension is introduced to the communication line 6 by the upstream winch 7A and the downstream winch 7B. That is, the required tension is introduced to the standard line 7 (diameter 12 mm, unit length mass w 0.53 kg / m) by the same standard winch 7 (1.3 tons), and the transverse pipe 2 (20 m ) Is set to a substantially horizontal state, that is, an intended suspension curve state. A desired concentrated load acts on this line, and a desired curve state (deflection, inclination) by superposition is taken. Thereby, the line system in this invention is constructed | assembled.
That is, the main line 6 is provided for movement of the equipment in the transverse pipe 2 after being arranged in the transverse pipe 2, and when the equipment, that is, the moving body is subjected to water resistance, it is broken or greatly bent. It is required to maintain a mechanical situation (strength) that is not subject to this standard, and this standard is based on the mechanical request.
When the main line 6 is subjected to the desired tension, the deflection at the center of the transverse pipe 2 (20 m) of the line 6 is 2.7 cm, and the load of the moving body fixed to the line 6 is 18. When taking 0 kg, the deflection at the center of the line 6 is 11.7 cm, and it does not hinder the work in the transverse pipe 2 attached to the line 6. Further, the bending moment due to the desired tension at the pipe opening is countered by the resistance moment of the cross section of the rail material 5.

(5) Installation of work body A (see FIGS. 9 to 11)
Next, a working method performed through a working body attached to the above-described communication line 6 will be described.
Hereinafter, an installation procedure in which the working body A is a cross-sectional measuring device will be described.
The work body A is attached to the communication line 6 at the ground part on the upstream side.
The work body A is attached via an attachment carriage 32 interposed in the line 6.
9 to 11 show the detailed configuration of the mounting carriage 32. FIG.
The main mounting carriage 32 (left and right front and rear, top and bottom are shown in the drawing) includes a frame body 33 having an elongated box shape, and a rotating shaft 34 a rotatably supported by the frame body 33 before and after the frame body 33. The roller 34 is mounted on both ends of the rotating shaft 34 a, the mounting plate 35 is fixed to protrude from the lower surface of the frame body 33, and the mounting ring 36 is fixed to the front and rear portions of the frame body 33. An attachment hole 35a is provided in the attachment plate 35 for attachment to the work body A. The height h of the mounting plate 35 is 3 to 4 cm.
The mounting carriage 32 is fitted in the groove space 16 of the rail member 5, and the roller 34 can be moved along the inner surface of the rear surface portion 12 and the front surface portion 14 of the rail material 5. The width of the frame body 33 is slightly smaller than the width of the groove 15 of the rail member 5, and guides the movement of the mounting carriage 32 without shaking.

On the other hand, in the working body A, the mounting plate 38 is fixed to the upper part of the main body, and the mounting hole 38a corresponding to the mounting hole 35a of the mounting plate 35 of the mounting carriage 32 is opened.
For mounting the work body A and the mounting carriage 32, the mounting plates 35 and 38 are overlapped with each other, the mounting holes 35a and 38a are aligned, and a fixture (bolt / nut) 39 inserted through the mounting holes 35a and 38a is attached. It is done by tightening.

12 to 14 show the detailed configuration of the working body A. FIG.
The working body A includes the mounting plate 38 and the device main body 40 fixed to the mounting plate 38. The device main body 40 has a frame body 42 and a rotation support shaft fixed to the frame body 42. A plurality of length measurement wings 43 having a predetermined length and opening radially, with a predetermined interval, an angle sensor 44 for detecting an opening angle of the length measurement wing, and the posture of the apparatus main body , A control board 46 for transmitting and receiving signals and controlling devices inside the apparatus main body 40, and a signal code 47 for communicating with the outside.

  More specifically, the frame body 42 of the apparatus body 40 includes a front (head) frame 50 having a conical shape, an intermediate (neck) frame 51 having a triangular cylindrical shape, and a rear portion (trunk portion) having a straight cylindrical shape. ) Frame 52. The front frame 50 serves as a mudguard for the progress of the main work body A in the muddy water. The intermediate frame 51 is a part to which the length measuring wing 43 is attached to each side portion, and specifically holds the rotation support shaft of the length measuring wing 43. In the rear frame 52, a cylindrical side plate 52b is fixed to a front disc body 52a, and the rear portion is opened. The diameter of the rear frame 52 is set to a diameter for horizontally receiving the length measurement wing 43 in the contracted state, and two connecting plates 38 and 38 'are attached to the side surface of the rear frame 52 on the upper and lower sides. The release space at the rear of the rear frame 52 is equipped with a fixing mechanism (described later) for the length measuring wing 43.

The length measuring wing 43 is a protruding rod that is pivotally supported by a support shaft holding body 53 fixed to a side of the intermediate frame 51 and has a rigid connection with the rotation support shaft 54. The spring material 55 is locked to 54a. The spring material 55 is interposed between the protruding rod 54a and the support shaft holding body 53, and constantly biases the protruding rod 54a in the opening direction (state shown in FIG. 12). A length measuring rod 43a of the length measuring wing 43 is fixed to the protrusion rod 54a of the rotating spindle 54, and a paddle portion 43b is fixed to the tip thereof. The paddle part 43b makes contact with the muddy deposits. A predetermined distance is maintained from the center of the rotating spindle 54 to the tip of the paddle portion 43b.
At the tip of the length measuring rod 43a of the length measuring wing 43, a flange portion 43c that protrudes further inward is disposed. The flange 43c is interlocked with a fastening mechanism 57 at the rear of the rear frame 52.
The fastening mechanism 57 includes an attachment plate 58 attached to the rear end of the rear frame 52 and an electromagnetic valve 59 attached to the attachment plate 58. The electromagnetic valve 59 is driven in response to an electric signal (described later), and is fixed to the flange portion 43c of the length measuring wing 43 by the axial movement of the drive shaft 59a. The mounting plate 58 also forms a sealed space (watertight space) J at the rear of the rear frame 52.

(Angle sensor 44)
The angle sensor 44 shares the rotation support shaft 54 of the length measurement wing 43 pivotally supported by the support shaft holding body 53 described above, and is attached to the opposite side of the measurement measurement wing 43 mounting portion. The amount of rotation 54 is measured.
That is, 0 ° is taken when the length measurement wing 43 is in the storage position, and the opening angle is detected as the length measurement wing 43 is opened.

(Attitude sensor 45)
The posture sensor 45 uses a so-called acceleration sensor (not excluding the combined use of the gyro sensor), and is disposed at a fixed position in the sealed space J at the rear of the rear frame 52 described above. To detect. The posture sensor 45 is installed in association with the basic position (0 (zero) point) of the main work body A. In the present embodiment, the basic position corresponds to the center axis of the main work body A and the length measurement wing 43. The point of intersection with the plane formed by the three rotation spindles 54 is selected.

(Control board 46)
The control board 46 is also disposed at a fixed position in the sealed space J at the rear of the rear frame 52, and performs transmission and reception of signals and device control within the apparatus main body 40. That is, the signals from the angle sensor 44 and the posture sensor 45 are received and sent to the outside, and the instruction signal is sent to the electromagnetic valve 59 of the fastening mechanism 57 described above in response to the signal from the outside. The signal from the attitude sensor 45 is corrected to an attitude signal at a zero point.
(Communication code 47)
The communication cord 47 is connected to the work body A and is sent from the ground part separately from the communication line 6. The communication code 47 is connected to the control board 46 in the main body 40 of the apparatus, transmits a signal of the control board 46 to the ground part, and transmits an instruction signal from the ground part to the control board 46.

  The working body A is regulated to a predetermined weight and size (width / height, length). That is, as an example, the weight P of the measuring device K is 18 kg, the diameter φ of the working body A is 25 cm, the length L is 60 cm, and the height h of the mounting plate 38 is 3 to 4 cm. Therefore, the lower bottom of the work body A is stored 35 cm from the center position of the rail member 5.

(5a) Attachment of work body A An attachment carriage 32 is installed on the line 6 in the upstream ground part. That is, it is attached to the line 6 through the attachment rings 36 at both ends of the attachment carriage 32.
In this state, the mounting plate 35 of the mounting carriage 32 and the mounting plate 38 of the working body A are overlapped, and fixing tools (bolts and nuts) 39 are inserted into the mounting holes 35a and 38a, and the fixing tools 39 are tightened. The work body A is attached. A communication cord 47 is connected to the work body A.
The measuring device K is disposed above the rail material 5, and the mounting carriage 32 is fitted into the groove space 16 of the rail material 5.
(5b) Lowering / sinking of the working body A The upstream winch 7A and the downstream winch 7B are synchronized with each other so that the working body A is against the weight of the working body A and the upstream human hole 1A. Lower and sink inside.
(5c) Arrangement of the measuring device K at the tube port When the work body A reaches the bent portion 5B of the rail member 5, the work body A draws an arc locus and approaches the tube port of the transverse tube 2. At this time, since the working body A is limited to a predetermined size, the working body A faces the tube opening of the transverse tube 2 in a predetermined posture without colliding with the wall surface of the tube opening.

(6) Operation of working body A The upstream side winch 7A and the downstream side winch 7B advance the working body A from the upstream pipe port through the transverse pipe 2 to a downstream pipe port with a predetermined tension.

(6a) Measurement by the working body A At the start of the progress of the working body A, the fixing mechanism 57 of the length measuring wing 43 is opened, and the length measuring wing 43 is opened outward by the biasing force of the spring material 55.
As the working body A progresses with the movement of the line 6, the length measuring pad 43 has a paddle portion 43b at the tip thereof tracing the surface of the deposit on the wall surface of the transverse tube 2, and maintains a constant opening angle at each position. The rotation support shaft 54 is rotated, and the opening angle is detected by the angle sensor 44.
The acceleration sensor 45 detects the posture (tilt) of the apparatus main body 40 of the work body A at each position. These detection values are sent to the processing unit on the ground via the control board 46 and displayed on the monitor.

FIG. 15 shows the internal structure of the working body A and the structure of the monitor display on the ground.
As shown in the figure, the work body A is equipped with main devices such as an angle sensor 44, an acceleration sensor 45, an electromagnetic valve 59, a sensor 44, an acceleration sensor 44, and a control board 46 that exchanges signals with the electromagnetic valve 59. The The work body A exchanges signals with a processing unit (usually a personal computer) 62 on the ground via a signal code 47. The processing device 62 also receives a signal from a displacement sensor 63 (built in the winch 7) that detects the displacement of the communication line 6. The processing device 62 includes or includes an input unit 62a, an image processing unit 62b, and a correction calculation unit 62c, and displays these signals on the monitor 64.
The processing device 62 also receives an information signal from the displacement sensor 63, performs calculation processing, and performs image processing on the inner surface state of the transverse tube 2 as the work body A advances. Information such as the inner diameter and length of the transverse tube 2 is input from the input means 62a. On the monitor 64, the image-processed information is displayed as necessary (usually momentarily).
In this way, as the work body A progresses in the cross pipe 2, the internal state of the cross pipe 2 is displayed on the monitor 64 every moment.
(6b) Workpiece A at downstream port
When the working body A reaches the downstream side port of the transverse pipe 2, the operation of the monitor is finished, and the mounting carriage 32 of the communication line 6 faces the wide opening 20 at the end of the rail material 5, and the rail material 5 smoothly It enters into the groove space 16.
(6c) Pulling up the working body A By driving the winches 7A and 7B, the working body A goes up the vertical portion 5A of the rail material 5 via the bent portion 5B of the rail material 5 and opens the opening 1a of the human hole 1. Is raised to the ground.
Thereafter, the work body A is removed from the mounting carriage 32, and the mounting carriage 32 is reversed by the reverse operation of the winches 7A and 7B together with the line 6, and is pulled back to the ground on the upstream side again for the next work.

(7) Second measurement Following the step (6c), the work body A is rotated by 180 ° around its central axis, and the attachment plate 38 ′ is connected to the attachment plate 35 of the wire 6. Thereby, this working body A takes Y arrangement in the radiation angle of the length measurement wing 43. Therefore, the radiation angle of the length measurement wing 43 is set at 60 ° intervals by the first reverse Y arrangement and the Y arrangement.
Measurement work is performed on this working body A according to the steps (5a), (5b), (5c), (6a), (6b), and (6c).
In this measurement, the cross-sectional state of the transverse tube 2 is measured at 60 ° intervals from the top of the tube. Note that the second measurement can be omitted as appropriate.

(8) Completion of measurement work The measurement work is completed by the above steps (1) to (7).

16 and 17 show a programmed automatic operation process (including partial manual operation) of the working body A. FIG. Specifically, the automatic operation process is executed by a program stored in a memory (ROM) built in the processing device 62 and the control board 46.
Before the automatic operation is started, the line 6 is fixed as expected, the work body A is installed on the line 6, and each device is connected. It is guided by manual operation.
At the start, predetermined measurement conditions (diameter, length, winch speed, once or twice measurement, etc.) are set via the input means 62a such as a keyboard or a touch panel in step S1, and the input is made in step S2. The value is output to a predetermined display (print output means 62b, monitor 64). The specification information (weight, diameter, length) of the work body A is input as a predetermined condition.
In step S3, the winch 7 is started based on the measurement condition (winch speed) described above.
In step S4, the tension value of the tension introduced into the through-line 6 in response to the detection value of the load sensor 29 is measured.
In step S5, it is determined whether or not the tension is appropriate. If the tension is lower than the appropriate value, the winding speed of the winch 7 is increased in step S6 (speed increase of the downstream winch 7B or deceleration of the upstream winch 7A). ) If the tension exceeds the appropriate value, the winding speed of the winch 7 is decreased in step S7. When these processes are performed, the process returns to step S5 again. If the tension is an appropriate value, the process proceeds to step S8.
Next, the measurement position is determined in step S8. The measurement position of the work body A is calculated based on the detection value of the displacement sensor 25 of the winch 7. If the work body A is a predetermined measurement position, the process proceeds to step S9. If it is not a predetermined measurement position, the above steps S4 to S8 are repeated again. This measurement position takes a continuous value in this embodiment, but does not exclude taking a non-continuous value (for example, every 1 m interval).
If the work body A is a predetermined measurement position, the attachment posture of the work body A to the through line 6, that is, the posture of the work body A is determined based on the detection value of the posture sensor (acceleration sensor) 45 in step S9. The measurement reference position of the body A is specified.
Next, sludge is measured in step S10. That is, the position of the tip of the length measurement wing 43 in the transverse pipe 2 (that is, the sludge surface) is detected by detecting the posture of the work body A by the acceleration sensor 45 and detecting the opening angle of the length measurement wing 43 of the work body A by the angle sensor 44. Position) is identified.
In step S11, a progress display of measurement data recording is output to a predetermined display (print output means 62b, monitor 64).
In step S12, it is determined whether or not all positions of the work A have been moved. If the work body A has not reached the predetermined end position (usually the downstream side pipe opening), the process returns to step S4, and the above-described steps S4 to S12 are repeated.
When the work body A reaches the end position, the process proceeds to step S13 and the winch 7 is stopped. In addition, after the winch 7 stops, the winch 7 is rolled up by manual operation and the work body A is pulled up to the ground part.
Thereafter, in step S14, predetermined information analysis (cross-sectional position display processing of cross tube 2, graphic display processing, etc.) is performed.
Next, in step S15, it is determined whether it is the first measurement or the second measurement, and if it is the first measurement, the process returns to step S3, the winch 7 is restarted, and steps S3 to S14 are repeated (during this time, the work body A Replacement and further rewinding of the line 6). If it is the second time, the process proceeds to step S16.
In step S16, the information analysis result is appropriately output to the displays 62b and 64.
This is the end.

(Effect of embodiment)
According to the working body A of the embodiment, the through wire 6 receives a predetermined tension and moves with a predetermined deflection amount and a deflection angle at the suspended position of the working body A (mainly its weight). By detecting the posture of the work body A with an acceleration sensor built in A, the position of the reference point (zero point) of the work body A can be accurately and easily determined. Therefore, the cross-sectional state of the inner surface of the transverse pipe at the position of the reference point of the working body A is made accurately and easily based on the information from the angle sensor.
After the first measurement, the phase is shifted and the second measurement is performed. By combining these results, the cross-sectional condition of the inner surface of the transverse tube 2 with a radiation interval of 60 ° is grasped, and the accuracy of this measurement method is confirmed. Will increase.
This cross-sectional state is displayed on the monitor and visually confirmed.

(Other aspects 1)
In the above embodiment, the length measurement wings 43 are three. However, by adopting a mode in which the length measurement wings are six at equal intervals, the measurement at intervals of 60 ° can be performed and only one measurement is required. In this aspect, the intermediate part (neck part) frame 51 of the frame body 42 has a hexagonal shape, and a length measuring wing is attached to each side part.
(Other aspect 2)
In the neck frame 51 of the frame body 42, three length measurement wings (120 ° intervals) are arranged with a phase shifted by 60 ° in the front-rear direction. Even in this mode, only one measurement is required.

(9) Installation of work body B and its work (see FIGS. 18 and 19)
Next, the work by the work body B is performed.
Hereinafter, an installation procedure in which the working body B is a mud scraping device will be described.
The work body B is attached via the above-described mounting carriage 32 interposed in the line 6.
18 and 19 show a detailed configuration of the working body B. FIG. In the figure, the traveling direction is the front (front).
This working body B (left and right front and rear, top and bottom is in the drawing) is a wide box-like frame body 70, a mounting plate 71 projecting from the center of the upper surface of the frame body 70, and the front and rear of the frame body 71 And a scraping plate 72 fixed to each.
The frame body 70 is long in the tube axis direction (longitudinal direction), and the lateral width is ensured to a width that does not collide with the tube port at the tube port (approximately 20 cm as a guide). That is, the width is a width that allows the frame body 70 to enter the pipe opening as much as possible in a mode in which the rail member 5 is arranged directly on the top of the pipe opening (that is, in a state where the level adjusting member 10 is not provided).
The mounting plate 71 is provided with mounting holes 71a for joining the mounting carriage 32 side by side. The mounting hole 32a of the mounting carriage 32 is aligned with the mounting hole 71a of the main mounting plate 71, and the above-described fasteners (bolts and nuts) 38 are attached thereto for fixing.
The scraper plate 72 includes a front scraper plate 72A and a rear scraper plate 72B, and is fixed to the front and rear plates of the frame body 70 with fasteners (bolts and nuts) 74. The width of the scraping plate 72 is substantially equal to the width of the frame body 70, the vertical cross-sectional shape is bent at the upper portion, and is inclined downward at a constant inclination angle (30 ° in this embodiment). The lower end of the scraping plate 72 has an arc shape, but may be linear. The scraping plate 72 is appropriately replaced by the fastener 74.
Furthermore, in this embodiment, the front scraping plate 72A and the rear scraping plate 72B are different in height, and the height of the rear scraping plate 72B is longer than the front scraping plate 72A by Δh. This increases the scraping efficiency. However, both scrapers 72A and 72B may have the same height.
Furthermore, the width of the scraping plate 72 may be appropriately widened at the lower portion as indicated by a two-dot chain line in the figure.

(9a) Mounting, lowering / sinking, and placement of the work body B Regarding the mounting, lowering / sinking, and placement of the work body B, the above-described mounting, lowering / sinking, and pipe port of the work body A Follow the procedure described in (5a) (5b) (5c).
In addition, about the initial arrangement | positioning to the pipe opening of this working body B, it is supposed that there is no level adjustment material 10 to the rail material 5, and the working body B will be in the state nearest to a vertex in a pipe opening part. At this time, the wide frame body 70 of the working body B is in a state as close as possible to the tube wall.

(9b) Work of the working body B The upstream side winch 7A and the downstream side winch 7B advance the working body B from the upstream side through the cross pipe 2 with a predetermined tension via the communication line 6, and the downstream side pipe To move.
The working body B is initially located at the upper part of the upstream side pipe port, and gradually falls downward due to the slack of the communication line 6 with the progress of the working body B, and reaches the lowest point at the center. After that, it gradually rises again and reaches the highest position at the downstream side port. Therefore, the scraping action of the deposit on the scraping plate 71 is performed from the middle of the transverse pipe 2.
When the forward movement of the first step is completed, the work body B is moved backward and pulled back to the start point of the crossing tube 2.
As a second step, the rail material 5 is slightly lowered to lower the height of the through wire 6 in the transverse pipe 2. Thereafter, the work body B is advanced from the upstream pipe port through the transverse pipe 2 with a predetermined tension through the upstream line winch 7A and the downstream winch 7B again and moved to the downstream pipe port. The scraping plate 71 of the working body B is at a lower position than the first step, and scrapes off the next deposit.
Thereafter, the above steps are repeated to remove the deposits in the transverse tube 2 and complete the scraping operation.
When the diameter of the cross pipe 2 is large (for example, exceeding 1 m), the rail material 5 is pulled up, the level adjusting material 10 having a height exceeding the R material 8 is attached to the rail material 5, and the rail material 5 is again attached to the person. It sinks in the hole 1, the horizontal part 5C faces the inside of the pipe opening, and the rail member 5 is installed in a fixed state. Thereby, the communication line 6 is installed at a predetermined height.

  To advance in the transverse pipe 2 of the above-mentioned working body B, the lower end of the working body B draws a locus that protrudes downward, but the wire 6 is loosened at the pipe opening so that the lower end of the scraping plate 71 is moved. The work body B is moved upward, gradually lifted with the progress of the work body B, the maximum tension is applied at the center, and then the wire 6 is loosened again to lower the lower end of the scraping plate 71 downward. The lower end of the scraping plate 71 can be moved horizontally.

(10) Reworking of the working body A After that, the deposition state in the transverse pipe 2 is remeasured as necessary, and further the scraping work of the deposit is performed.
That is, the work body B is switched again to the work body A, and the state of the inner surface of the crossing tube 2 is reconfirmed on the monitor. If the deposit removal status is not sufficient, the work B is used to scrape the deposit.
Note that step (8) is an optional operation.

(11) Completion of work The work is completed by the above steps (1) to (8).

(Effect of embodiment)
(Installation of rail material 5)
Since the tube port protecting portion formed of the bent portion 5B and the horizontal portion 5C at the lower end of the rail member 5 is brought into contact with the tube port of the transverse tube in a predetermined state, a large tension is applied to the through-wire 6 arranged in the rail member 5. In the case where a sag is applied, the pipe opening is protected and is not damaged by the communication line 6.
In this embodiment, since the rail material 5 takes the divided | segmented aspect, the operation | work by manual operation is attained without relying on mechanical force.
The R material 18 attached to the back surface of the bent portion 5B of the rail material 5 serves to maintain the interval of installation of the rail material 5 in the human hole 1 and to stiffen the rail material 5, thereby exhibiting multiple functions.
The height of the communication line 6 in the transverse pipe 2 can be freely set by inserting a suitable number of level adjusting members 10.
(Stationary line 6 placement, introduction of tension)
Since the working device S of the present embodiment is movable and is fixed by the outrigger 24, positioning is easy and reliable, which is convenient for work. Furthermore, since the related equipment of winch 7 is mounted, the trouble of installation can be saved without arranging these equipment each time. In addition, by arranging the pulley 28 that guides the line 6 directly above the rail material 5, it is possible to directly apply tension to the line 6 without applying an unexpected load to the rail material 5.
Further, the movement amount sensor 25 and the tension sensor 29 of the line 6 are arranged in the work device S, and the movement amount and tension of the line 6 can be easily measured.
The intended tension is introduced into the line 6 so that the line 6 in the transverse pipe 2 is in the desired suspension curve state, and the intended concentrated load acts on the line 6 and the line is overlapped. The period curve state (deflection, slope) is taken. Therefore, the work (measurement, cleaning, etc.) performed based on this line 6 can be accurately set.
(Installation of work body A and its work)
Since the mounting carriage 32 is a front and rear two-shaft four-wheel, the traveling is stable, there is no movement to the work body A, and the passage protecting portion (bending portions 5B, 5C) of the rail material 5 can pass stably. it can.
The working body A has a prescribed size, length, and weight, and can pass through the transverse pipe 2 without any obstacles without colliding with the mouth of the transverse pipe 2.
Since the work body A moves while being fixed to the through-line 6 having a predetermined curved state, the movement position of the work body A is determined by determining the posture of the work body A itself with the posture sensor, and the determination is made. Based on the position, the measurement is performed by the work body A, and the accumulation state of the transverse pipe 2 is accurately grasped.
Since the accumulation situation in the transverse tube 2 is imaged, it is possible to easily grasp the situation.
Since the measurement operation in the cross pipe 2 by the work body A is performed automatically except for a part, the operator can concentrate on monitoring the monitor, and at the same time as the automatic operation is finished, the precise sediment sediment in the cross pipe 2 is You can get the situation.
(Installation of work body B and its work)
Since the mounting carriage 32 is a front and rear two-shaft four-wheel, the running is stable, there is no blurring to the work body B, and it can pass through the tube port protection portions (bending portions 5B and 5C) of the rail material 5 stably. it can.
The working body B has a specified size, length, and weight, and can pass through the transverse pipe 2 without any obstacles without colliding with the pipe opening of the transverse pipe 2.
Since the work body B moves while being fixed to the through line 6 having a predetermined curved state, the lower end of the work body B can perform a scraping operation by drawing a predetermined trajectory, so that the work can be performed stably. can do. Furthermore, by adjusting the tension of the line 6, the lower end of the work body B can be moved up and down to expand the selection range such as horizontal movement or scraping work at a specific location.
This operation can be performed based on the measured sediment image, and the operation can be easily performed. That is, an operation that cannot be visually observed can be easily performed by displaying the image of the sediment at each position in the cross pipe 2 and positioning the work body B at that position.

(Other aspects)
In the above embodiment, the work A is attached to the line 6 and the measurement work is performed immediately. Prior to the measurement work, a preliminary obstacle check is performed to check whether the cross section of the transverse pipe 2 is secured. It is preferable to do.
FIG. 20 shows a preliminary survey apparatus 140 for performing this obstacle preliminary survey. The preliminary investigation apparatus 140 includes a hollow cylindrical lead cylinder 141 and a mounting plate 142 fixed to the top of the outer side surface of the lead cylinder 141. The above-described mounting cart 32 is arranged on the line 6, and the preliminary survey device 140 is mounted on the cart 32 and surveyed.
More specifically, the mounting plate 142 conforms to the mounting plates 38 and 71 of the working bodies A and B, the mounting holes correspond to the mounting holes 35a of the carriage 32, and the fixtures mounted in these holes are tightened to fix the device 140. Is fixed.
The leading cylinder 141 has a predetermined weight, a diameter φ, and a length m. That is, the weight should preferably be as light as possible, but it should satisfy the requirements of not floating and not reluctant to flow. The diameter φ is equal to the maximum length of the work body A that is passed through the apparatus body 40, and the length m is equal to the maximum length of the work body A that is the apparatus body 40.
In conducting the obstacle preliminary investigation, the preliminary investigation apparatus 140 attached to the carriage 32 of the line 6 is inserted into the transverse pipe 2 from the vertical hole 1 through the pipe opening in accordance with the operation of the working body A described above. I will do it. If it is confirmed that the preliminary investigation device 140 passes through the vertical hole 1 and the cross pipe 2 without any trouble, the measurement work by the working body A is performed. Since the preliminary survey device 140 is light in weight, it is possible to reduce the tension of the through wire 6 and use the slack to position the leading cylinder 141 at the center of the transverse tube 2. it can.

The present invention is not limited to the underground pipe dredging, and can also be applied to other transverse pipes (underground pipes) in the sewerage system, water pipes, and pipelines.
In pipelines (petroleum, natural gas), the strong adhesion of foreign matter to the pipe wall has become a problem, and the application of the present invention is expected for the investigation and removal of this deposit.
In FIG. 21, P indicates a pipeline arranged on the ground. Upright pipes 200 for the perforations Q are erected at appropriate two locations of the pipeline P, and the gantry 201 is installed. A winch 202 and a pulley 203 are installed on the gantry 201.
In the implementation of the present invention, a perforation Q is formed on the gantry 201, a through wire 205 is arranged through the perforation Q, a rail material 206 is inserted, and the through wire 205 is installed in a desired state by the winch 202. To do.

  The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention.

  S ...... Working equipment, 1 ... Stand hole (human hole), 1A ... Upstream side vertical hole (human hole), 1B ... Downstream side vertical hole (human hole), 2 ... Transverse pipe (passing pipe) 3A: Upstream side pipe line, 3B: Downstream side pipe line, 5 ... Rail material, 5A ... Vertical part, 5B ... Bent part, 5C ... Horizontal part, 6 ... Line, 7 ... Winch, 7A ... Upstream winch, 7B ... Downstream winch, 10 ... Level adjuster

Claims (3)

A fluid conduit for fluid flow from upstream to downstream,
In a bent pipe line connected to a flow through a straight transverse pipe between opposed vertical holes in the fluid pipe line,
a) a long vertical part having a groove space inside,
b) A bent portion which forms a part of the pipe opening protecting portion and has a groove space inside, and has a predetermined curvature continuously provided at the lower end of the vertical portion, and has a quadrant shape on the center line on the back surface thereof. The flat plate is fixed along the curvature,
c) A short horizontal portion that forms a surplus portion of the pipe opening protection portion and has a groove space therein, and is provided continuously to the bent portion.
d) A guideway for a line is formed on the outer surface of the vertical portion, the bent portion, and the horizontal portion, and with a groove communicating with the groove space along the longitudinal direction.
The rail member made of a, b, c, and d is arranged such that a vertical side portion of a quadrant-shaped flat plate of the tube port protecting portion abuts against a wall surface of the standing hole and a horizontal portion of the tube port protecting portion is Abuts the top of the tube mouth of the transverse tube, and stands up along the respective wall surfaces of the opposed vertical holes;
A work line having a work body attached to a part of each winch disposed above the compatible hole is guided with a predetermined tension along the guide path of the rail material,
Arranging working lines with adjusted height and tension in the transverse pipe between the vertical holes,
A method for passing a working line to a transverse pipe in a fluid pipe. A fluid conduit for fluid flow from upstream to downstream,
In a bent pipe line connected to a flow through a straight transverse pipe between opposed vertical holes in the fluid pipe line,
a) a long vertical part having a groove space inside,
b) A bent portion which forms a part of the pipe opening protecting portion and has a groove space inside, and has a predetermined curvature continuously provided at the lower end of the vertical portion, and has a quadrant shape on the center line on the back surface thereof. The flat plate is fixed along the curvature,
c) A short horizontal portion that forms a surplus portion of the pipe opening protection portion and has a groove space therein, and is provided continuously to the bent portion.
d) A guideway for a line is formed on the outer surface of the vertical portion, the bent portion, and the horizontal portion, and with a groove communicating with the groove space along the longitudinal direction.
The rail member made of a, b, c, d is in contact with the vertical side portion of the quadrant-shaped flat plate of the tube port protecting portion against the wall surface of the standing hole, and the horizontal portion of the tube port protecting portion. Abutting on the top of the mouth of the transverse pipe through one or more level adjusting members interposed on the upper surface, and standing up along the respective wall surfaces of the opposed vertical holes;
A work line having a work body attached to a part of each winch disposed above the compatible hole is guided with a predetermined tension along the guide path of the rail material,
Arranging working lines with adjusted height and tension in the transverse pipe between the vertical holes,
A method for passing a working line to a transverse pipe in a fluid pipe. In a bent pipe that forms a flow of fluid from upstream to downstream, and that is connected in a flowing state between opposing vertical holes in the fluid pipe through a straight transverse pipe, Rail material comprising the following a, b, c, d used in a wiring method in which a working wire having a work body attached to a part of which is adjusted in height and tension in a transverse pipe between holes Because
a) a long vertical part having a groove space inside,
b) A bent portion which forms a part of the pipe opening protecting portion and has a groove space inside, and has a predetermined curvature continuously provided at the lower end of the vertical portion, and has a quadrant shape on the center line on the back surface thereof. The flat plate is fixed along the curvature,
c) A short horizontal portion that forms a surplus portion of the pipe opening protection portion and has a groove space therein, and is provided continuously to the bent portion.
d) A through-passage guide path is formed with a groove communicating with the groove space along the longitudinal direction on the outer surface of the vertical part, the bent part and the horizontal part,
The horizontal part of the pipe port protecting part is in contact with the top part of the pipe port of the transverse pipe, and the vertical side of the quadrant plate of the pipe port protecting part is in contact with the respective wall surfaces of the opposed vertical holes. Used,
The rail material used for the method of passing the working line to the crossing pipe in the bent pipe line.

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