JP4271765B2 - Coating material support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a covering material support device used for pipe repair work.
[0002]
[Prior art]
FIG. 4 shows an example of a sewage pipe constructed by a shield method. This sewage pipe supports a ground load by a pipe housing 1 composed of a reinforced concrete or steel segment, and the pipe housing. The secondary winding concrete layer 2 which forms a water conduit in 1 is constructed.
[0003]
The secondary winding concrete layer 2 of such a sewage pipe line is exposed to an atmosphere containing a gas such as hydrogen sulfide 4 to cause deterioration such as corrosion 5 over time.
[0004]
Therefore, in recent years, repair work has been performed on the secondary winding concrete layer 2 of the sewage pipe.
[0005]
FIGS. 5 and 6 show an example of a conventional sewage pipe repair method. This repair method uses a long strip-shaped lining material (coating material) 6 made of synthetic resin having acid resistance and base resistance, for example, A gap formed between the lining material 6 and the secondary winding concrete layer 2 along the inner surface of the secondary winding concrete layer 2 and spirally laid from one end of the sewer pipe to the other end. A backfilling material is placed on the surface of the existing pipe housing 1 to reconstruct a smooth water conduit.
[0006]
At one edge of the lining material 6 in the width direction, a protrusion 7 is formed that extends in the longitudinal direction of the lining material 6 and protrudes toward the inner surface of the secondary winding concrete layer 2.
[0007]
Ribs 8 and 9 extending in the longitudinal direction of the lining material 6 and projecting toward the inner surface of the secondary winding concrete layer 2 and embedded in the backfill material are formed at the intermediate portion in the width direction of the lining material 6.
[0008]
The protrusion 7 can be inserted into the other edge of the lining material 6 in the width direction when extending in the longitudinal direction of the lining material 6 and laying the lining material 6 spirally along the inner surface of the secondary winding concrete layer 2. A fitting portion 10, a rib 11 extending in the longitudinal direction of the lining material 6 and projecting from the fitting portion 10 toward the inner surface of the secondary winding concrete layer 2 and embedded in the backfill material, and extending in the longitudinal direction of the lining material 6. Further, when the lining material 6 is spirally laid along the inner surface of the secondary winding concrete layer 2, a lip 12 is formed that can come into contact with the rib 8 adjacent to the protrusion 7.
[0009]
Further, the lining material 6 may be laid on the inner surface of the secondary winding concrete layer 2 while inserting a steel reinforcing member 13 extending in the longitudinal direction of the lining material 6 between the ribs 8 and 9.
[0010]
Furthermore, according to conditions such as the diameter of the sewer pipe to be repaired and the amount of backfilling material to be repaired, a frame is installed for each backfilling material placement target section and the inner surface of the secondary winding concrete layer 2 is covered. The formwork that is in surface contact with the existing lining material 6 is supported by the frame to prevent the lining material 6 from expanding toward the center of the sewage pipe when the backfill material is placed.
[0011]
[Problems to be solved by the invention]
However, in the conventional method, when a formwork is used to prevent deformation of the covering material such as the lining material 6, the frame of the backfill material placement target section where the placement work has been completed is disassembled and the next backfill material placement target. Since it is necessary to relocate to the section and re-install the frame in the section (replacement work), the repair work of the sewer pipe cannot be performed efficiently.
[0012]
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a covering material support device that facilitates refilling of a formwork.
[0013]
[Means for Solving the Problems]
To achieve the above object, a coating material supporting device according to the present onset Ming, a cylindrical main frame disposed within the conduit to be repaired, movable in the conduit axially relative main frame A gate-shaped sub-frame, an upper mold frame located above the sub-frame and capable of being in surface contact with the covering material covering the upper part of the inner surface of the pipe, and a lower part of the inner face of the pipe located below the sub-frame A lower mold frame that can be brought into surface contact with a covering material that covers the side wall, a side mold frame that is located on both left and right sides of the sub-frame and can be brought into surface contact with a covering material that covers the left and right sides of the inner surface of the pipe, A first actuator, a second actuator, and a third actuator that are displaced toward and away from the inner surface of the pipe line with respect to the subframe;
The main frame includes left and right guide rails extending over the entire length in the pipeline axis direction, and wheels disposed at the front end portion and the rear end portion in the pipeline axis direction, and the pipeline axis line laid in the pipeline to be repaired The left and right rails extending in the direction are configured to be movable by the wheels,
The sub-frame includes a rectangular frame-shaped upper component located at the upper part of the main frame, and left and right intermediate members pivoted on rollers that extend downward from the four corners of the upper component and can roll on the guide rail. A component member and a lower component member extending downward from the intermediate component member,
A first actuator is attached to the upper component member so as to be disposed above the intermediate component member, and the upper mold is moved closer to and away by the first actuator,
A second actuator is attached to the lower component member so as to be arranged below the intermediate component member, and the lower mold is moved closer to and away by the second actuator,
Left and right third actuators are attached to the left and right intermediate component members so as to be symmetrically arranged, and the left and right side molds are moved close to and away from each other by the third actuator .
[0017]
In dressing support apparatus according to the present onset Ming, subframe multiple mold movable with the pipe axially relative to the main frame, a first actuator, the second actuator, to be repaired by a third actuator Surface contact is made with the covering material covering the pipeline, and deformation of the covering material due to placement of the backfilling material is prevented.
[0018]
In dressing support apparatus according to the present onset Ming, a hose to bypass water from the pipe repairing section upstream to the pipe repairing section downstream is temporary in the tubular in the main frame.
[0019]
In dressing support apparatus according to the present onset Ming, the wheels rolling on rails, promote transfer to the conduit axis direction of the main frame.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
1 and 2 show an example of an embodiment of the covering material support apparatus of the present invention. As shown in FIG. 3, the sheet covering body to which the covering material support apparatus is applied is a secondary material to be repaired. A plurality of connecting members 15a for fastening an annular reinforcing frame body 14 disposed at a predetermined interval in the sewage pipe axis direction in the wound concrete layer 2 and a reinforcing frame body 14 extending in the sewage pipe axis direction and adjacent to each other to each other. , 15b and a sheet material (covering material) 16 stretched in order so as to cover the inner surface of the secondary winding concrete layer 2 on the adjacent reinforcing frame 14.
[0022]
The reinforcing frame 14 is formed by fastening arc-shaped divided members 17 in order in the circumferential direction of the inner surface of the secondary winding concrete layer 2.
[0023]
The dividing member 17 located at the lower part of the reinforcing frame 14 has left and right rails 32 extending in the sewage pipe axis direction, and the head is located at the center of the secondary winding concrete layer 2 when viewed in the sewage pipe axis direction. The predetermined dividing member 17 is provided with a work hole (not shown) that penetrates in the sewer pipe axis direction and through which the backfilling material placement pipe can be inserted. .
[0024]
The material of the sheet material 16 is made of synthetic resin such as polypropylene having acid resistance and base resistance. The sheet material 16 protrudes toward the inner surface of the secondary winding concrete layer 2 and is backed up. Many protrusions (not shown) embedded in the material are formed.
[0025]
The dimensions of the sheet material 16 are set based on the interval between the adjacent reinforcing frame bodies 14 and the inner peripheral circumference of the reinforcing frame body 14.
[0026]
One edge portion of the sheet material 16 is attached so as to cover the entire inner edge portion of the reinforcing frame body 14 located on the upstream side A side of the sewage pipeline, and the other edge portion of the sheet material 16 is on the downstream side B side of the sewage pipeline Attached to each inner edge of the reinforcing frame body 14 located on the inner edge of the other sheet material 16 that is already attached, the inner surface of the secondary concrete layer 2, the sheet material 16, and the sheet A backfilling material placement space 37 is formed by the reinforcing frame 14 to which the material 16 is attached.
[0027]
The portion of the sheet material 16 attached to the reinforcing frame 14 is filled with a sealing agent, and the winding start end and the winding end end of the sheet material 16 with respect to the secondary winding concrete layer 2 are heat-welded to each other to be watertight. Sex is preserved.
[0028]
The covering material supporting device shown in FIGS. 1 and 2 is arranged in a secondary winding concrete layer 2 to be repaired and extends in a sewer pipe axis direction, and a sewer pipe axis with respect to the main frame 38. A gate-shaped subframe 39 that can move in the direction, and an upper mold that can be in surface contact with a sheet material (covering material) 16 that is located above the subframe 39 and covers the upper surface of the secondary winding concrete layer 2 40, a first hydraulic jack ( first actuator) 41 that raises and lowers the upper mold frame 40 relative to the subframe 39 in a direction approaching and separating from the inner surface of the secondary winding concrete layer 2, and a lower frame of the subframe 39 A lower mold 42 which is located on the side and can be brought into surface contact with the sheet material 16 covering the lower inner surface of the secondary winding concrete layer 2, and the inner surface of the secondary winding concrete layer 2 with respect to the subframe 39. A second hydraulic jack (second actuator) 43 for elevating direction toward away, the surface can contact the sheet material 16 which covers the position is and secondary winding inner face side of the concrete layer 2 on the right and left sides of the sub-frame 39 Right and left side molds 44, and a third hydraulic jack ( third actuator) 45 for moving the side molds 44 toward and away from the inner surface of the secondary winding concrete layer 2 with respect to the sub frame 39, 46.
[0029]
The main frame 38 is a curved plate-like lower constituent member 47 whose convex curved surface is positioned on the lower side when viewed in the sewage pipe axis direction, and is fixed to both left and right edges of the lower constituent member 47 and is connected to the sewage pipe axis line. A flange 48 extending in the direction of the entire length of the lower component member 47, a curved plate-like upper component member 49 whose convex curved surface is located on the upper side when viewed in the sewer pipe axis direction, and an upper surface of the upper component member 49. A flat rod-like step 49a extending over the entire length of the upper component member 49 in the sewage pipe axis direction, and fixed to both left and right edges of the upper component member 49 so as to overlap the flange 48 and upper in the sewage pipe axis direction A guide rail 50 extending over the entire length of the component member 49, a wheel frame 51a pin-connected to a bracket 51 provided on the lower component member 47 at the front end portion and the rear end portion in the sewage pipe axis direction, Two by the pivoted and rail 32 on the wheel frame 51a is constituted by a rollable wheels 52.
[0030]
The main frame 38 has a substantially cylindrical shape when the flange 48 of the lower component member 47 and the guide rail 50 of the upper component member 49 are bolted to each other.
[0031]
The sub-frame 39 is a rectangular frame-shaped upper component 53 positioned directly above the main frame 38, extends downward from the four corners of the upper component 53, and can roll on the guide rail 50 at the lower end. The intermediate member 55 is provided with an intermediate member 55 on which the roller 54 is pivotally supported, and a lower member 56 that extends downward from the side surface of the lower end of the intermediate member 55.
[0032]
The upper mold 40 includes a support plate 57 having a convex curved surface located on the upper side when viewed in the sewage pipe axis direction and capable of being in surface contact with the sheet material 16 covering the upper inner surface of the secondary winding concrete layer 2, and the support plate It is comprised by the rib 58 fixed to the both ends of the sewage pipe axis direction front and back of 57 concave curved surfaces.
[0033]
The dimension of the support plate 57 in the direction of the sewage pipeline axis is set to be larger than the dimension of the sheet material 16 stretched between the adjacent reinforcing frame bodies 14 in the sewage pipeline axis direction.
[0034]
The first hydraulic jack 41 has a housing attached to the upper component 53 of the sub-frame 39 and a rod pin-connected to the rib 58 of the upper mold 40.
[0035]
The lower mold 42 includes a support plate 59 having a convexly curved surface located on the lower side when viewed in the axial direction of the sewage pipe line and capable of being in surface contact with the sheet material 16 covering the upper part of the inner surface of the secondary winding concrete layer 2. The rib 59 is fixed to both ends of the concave curved surface of the plate 59 in the longitudinal direction of the sewage pipe axis.
[0036]
The dimension of the support plate 59 in the sewage pipe axis direction is set to be larger than the dimension in the sewage pipe axis direction of the sheet material 16 stretched between the adjacent reinforcing frame bodies 14.
[0037]
Further, the support plate 59 and the rib 60 are formed with a notch S for avoiding interference with the rail 32 when the support plate 59 comes into surface contact with the sheet material 16.
[0038]
The second hydraulic jack 43 has a housing pin-connected to the lower component member 56 of the sub-frame 39 and a rod pin-connected to the rib 60 of the lower mold frame 42.
[0039]
The side part formwork 44 includes a support plate 61 having a convex curved surface located on the left side or the right side when viewed in the sewage pipe axis direction and capable of surface contact with the sheet material 16 covering the inner side part of the secondary winding concrete layer 2. The rib 62 is fixed to the concave curved surface of the support plate 61.
[0040]
The dimension of the support plate 61 in the sewage pipe axis direction is set to be larger than the dimension of the sheet material 16 stretched between the adjacent reinforcing frame bodies 14 in the sewage pipe axis direction.
[0041]
The third hydraulic jack 45 is attached to the upper end portion of the intermediate component 55 located on the left or right side of the sub-frame 39 when the housing is viewed in the sewer pipe axis direction, and the rod is viewed in the sewer pipe axis direction. Then, it is pin-connected to a portion near the upper end of the rib 62 of the side mold 44 located on the left or right side.
[0042]
The third hydraulic jack 46 is pin-connected to the left side portion or the right side portion of the rib 60 of the lower mold frame 42, and the side mold frame 44 in which the rod is located on the left side or the right side when viewed in the sewer pipe axis direction. A pin is connected to the lower end portion of the rib 62.
[0043]
Further, the main frame 38 described above is connected to another main frame 38 subsequent thereto via a connecting member 63.
[0044]
When the covering material support device shown in FIGS. 1 and 2 is used to prevent the deformation of the sheet material 16 during the placement of the backfill material, the main frame 38 is composed of the lower component member 47, the upper component member 49 and the wheel. The frame 51a is divided, and the sub-frame 39 is divided into an upper component 53, an intermediate component 55, and a lower component 56. These members, the upper mold 40, the lower mold 42, and the side molds are divided. The frame 44 is carried into an existing shaft extending from the ground surface to the sewer pipe, and the covering material support device is assembled at the bottom of the shaft.
[0045]
Further, the wheel 52 is placed on the rail 32, and the main frame 38 is moved along the rail 32 to the backfill material placing target section.
[0046]
Next, the predetermined sheet material 16 stretched between the reinforcing frame bodies 14 on which the backfill material is to be placed, and the upper mold frame 40, the lower mold frame 42, and the side mold frames 44 face each other. The sub-frame 39 is moved with respect to the frame 38.
[0047]
Further, the rods of the first hydraulic jack 41, the second hydraulic jack 43, and the third hydraulic jacks 45, 46 are protruded outward from the housing, and the upper mold frame 40, the lower mold frame 42, and the side mold frame 44 are After the support plates 57, 59, 61 are brought into surface contact with the sheet material 16, a backfilling material placing pipe is inserted into a predetermined dividing member 17 working hole constituting the reinforcing frame 14, and backfilling is performed. A backfill material is placed in the material placement space 37.
[0048]
At this time, in the notch S of the lower mold 42, a filler close to the position portion of the rail 32 and the sheet material 16 near the rail 32 is interposed as necessary.
[0049]
When the backfill material is solidified, the rods of the first hydraulic jack 41, the second hydraulic jack 43, and the third hydraulic jacks 45 and 46 are pulled to the housing side, and the upper mold frame 40, the lower mold frame 42, and the side molds are drawn. A predetermined sheet that is stretched between the reinforcing frame bodies 14 in which the support plates 57, 59, and 61 of the frame 44 are separated from the sheet material 16 filled with the backfill material and the backfill material is to be placed next. The sub frame 39 is moved relative to the main frame 38 so that the material 16 and the upper mold frame 40, the lower mold frame 42, and the side mold frame 44 face each other.
[0050]
If the placing operation in the backfilling material placement target section where the main frame 38 is located is completed by repeating the above-described procedure, the main frame 38 is moved along the rail 32 to the next backfilling material target section. Move to.
[0051]
As described above, in the covering material supporting apparatus shown in FIGS. 1 and 2, the upper mold 40, the lower mold 42, and the side mold 44 that are movable together with the sub frame 39 with respect to the main frame 38 are provided with the first hydraulic pressure. Since the sheet 41 covering the concrete secondary winding concrete layer 2 to be repaired is brought into surface contact with the jack 41, the second hydraulic jack 43, and the third hydraulic jacks 45, 46, the sheet at the time of placing the backfill material The deformation of the material 16 can be prevented.
[0052]
Further, the upper frame 40 and the lower frame 42 are moved by moving the sub frame 39 relative to the main frame 38 in the direction of the sewage pipeline axis and moving the main frame 38 in the direction of the sewage pipeline along the rail 32. And the refilling work of the side part formwork 44 becomes easy, and therefore the repair work of the sewage pipe line can be performed efficiently.
[0053]
Furthermore, since the main frame 38 formed by the lower component member 47 and the upper component member 49 is cylindrical, the sewage pipe is placed in the main frame 38 during the placement of backfill material and other various operations. A hose that bypasses water from the upstream side of the repair section to the downstream side of the sewage pipe repair section can be temporarily installed.
[0054]
In addition to this, since the upper component member 49 is provided with the step 49a over its entire length, the operator can work on the main frame 38 easily and stably.
[0055]
Note that the covering material support device of the present invention is not limited to the above-described embodiment, and it is needless to say that changes can be made without departing from the gist of the present invention.
[0056]
【The invention's effect】
As described above, according to the coating material support apparatus of the present invention, the following various excellent effects can be obtained.
[0057]
In dressing support apparatus according to (1) the onset Ming, a plurality of mold movable with the pipe axial direction by-frame to the main frame, a first actuator, the second actuator, the third actuator As the pipe to be repaired is brought into surface contact with the covering covering and the covering is prevented from being deformed due to the placement of the backfilling material, the refilling of the formwork is facilitated. Repair work can be performed efficiently.
[0058]
(2) in the coating material supporting device according to the present onset Ming, the tubular in the main frame, that the hose to bypass water into sewer pipe repairing section downstream from the sewer pipe repair section upstream to temporary it can.
[0059]
(3) Since the wheel rolling on the rail moves the main frame in the direction of the pipeline axis, the range in which the formwork can be easily replaced is expanded, and repair work for the sewage pipe flow is performed more efficiently. be able to.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing an example of an embodiment of a covering material support apparatus of the present invention.
FIG. 2 is a view taken in the direction of arrows II-II in FIG.
FIG. 3 is a conceptual diagram illustrating an example of a sheet covering body.
FIG. 4 is a transverse sectional view showing an example of a sewer pipe constructed by a shield method.
FIG. 5 is a conceptual diagram showing an example of a conventional sewage pipe repair method.
6 is a cross-sectional view showing a fitting state of the lining material in FIG. 5. FIG.
[Explanation of symbols]
2 Secondary winding concrete layer (pipe)
16 Sheet material (coating material)
32 rails 38 main frame 39 sub frame 40 upper mold frame 41 first hydraulic jack ( first actuator)
42 Lower mold form 43 Second hydraulic jack ( second actuator)
44 Side part form 45 Third hydraulic jack ( third actuator)
46 3rd hydraulic jack ( 3rd actuator)
50 guide rails 52 wheels
53 upper component
54 rollers
55 intermediate component
56 lower component

Claims (1)

A cylindrical main frame disposed in a pipe line to be repaired, a gate-shaped sub frame movable in the pipe axis direction with respect to the main frame, and a pipe line located above the sub frame and An upper mold that can be in surface contact with the covering material covering the upper surface of the inner surface, a lower mold that is located on the lower side of the sub frame and can be in surface contact with the covering material that covers the lower part of the inner surface of the pipe, and the sub frame. Side molds located on both left and right sides and capable of surface contact with the covering material covering the left and right sides of the pipe inner surface, and a first actuator for displacing each mold frame toward and away from the pipe inner surface with respect to the subframe A second actuator and a third actuator,
The main frame includes left and right guide rails extending over the entire length in the pipeline axis direction, and wheels disposed at the front end portion and the rear end portion in the pipeline axis direction, and the pipeline axis line laid in the pipeline to be repaired The left and right rails extending in the direction are configured to be movable by the wheels,
The sub-frame includes a rectangular frame-shaped upper component located at the upper part of the main frame, and left and right intermediate members pivoted on rollers that extend downward from the four corners of the upper component and can roll on the guide rail. A component member and a lower component member extending downward from the intermediate component member,
A first actuator is attached to the upper component member so as to be disposed above the intermediate component member, and the upper mold is moved closer to and away by the first actuator,
A second actuator is attached to the lower component member so as to be arranged below the intermediate component member, and the lower mold is moved closer to and away by the second actuator,
A left and right third actuator is attached to the left and right intermediate component members so as to be arranged symmetrically, and the right and left side molds are moved closer to and away from each other by the third actuator. Material support device.

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