KR20050093711A - Position adjusting spacer and method for adjusting the position of a rehabilitating pipe using such - Google Patents

Abstract

The spacer is constructed by overlapping a second wedge-shaped member with an inclined bottom surface at an angle over a first wedge-shaped member with an upper surface inclined at an angle. This spacer is inserted in the gap between the inner wall of the existing tube and the outer periphery of the regeneration tube. When the second wedge-shaped member is urged to move in the insertion direction with respect to the first wedge-shaped member, they are caught on the inclined surfaces of the first and second wedge-shaped members so that they cannot move in the opposite direction of the insertion direction. latching teeth are formed. When moving the second wedge-shaped member to each locking position, the overall height of the spacer is sequentially increased step by step at a fine pitch, so that the adjustment of the rehabilitation pipe relative to the existing pipe can be performed simply.

Description

POSITION ADJUSTING SPACER AND METHOD FOR ADJUSTING THE POSITION OF A REHABILITATING PIPE USING SUCH}

The present invention relates to a spacer inserted in a gap between an exiting pipe and a rehabilitation pipe for adjusting the position of a rehabilitating pipe and a method for adjusting the location of the rehabilitation pipe using such a spacer.

The rehabilitation pipe is placed inside the existing pipe and fills the gap between the outer periphery of the rehabilitation pipe and the inner wall of the existing pipe with filler, and then hardens the filler to rebuild the existing pipe, such as a sewer pipe, in which a compound pipe is formed. Methods are known. In this existing pipe rehabilitation work, the rehabilitation pipe is normally rebuilt by adjusting the position of the rehabilitation pipe in the up-and-down left and right directions inside the existing pipe to a position slightly off from the position concentric with the existing pipe so that the lower end of the outer circumference contacts the bottom of the existing pipe. It is necessary to fix the pipe.

This is to ensure fluid flow inside the existing pipe by lowering the bottom of the pipe so that the bottom of the pipe is close to the bottom of the existing pipe as much as possible. Since most of the damage to the existing pipe occurs in the upper part, It is to thicken a filler and to strengthen strength. On the other hand, since the regeneration tube is made of a plastic material having a specific gravity lower than that of the filler, it preferably floats over the filler, so that the above-described position adjustment is necessary to press the regeneration tube downward.

Conventionally, the position of these rehabilitation pipes is adjusted using a method in which a square member manufactured to the required height (thickness) is inserted as a spacer in the gap between the periphery of the rehabilitation pipe and the inner wall of the existing pipe. In addition, Japanese Patent Laid-Open No. 2003-286742 is screwed to a block (segment) constituting the rehabilitation pipe so that the bolt constituting the spacer can move forward and backward in the direction protruding from the outer circumference of the rehabilitation pipe and in the reverse direction. Disclosed is a method for adjusting the position of a screwed joint to increase or decrease the length protruding from the outer tube.

Nevertheless, in the above-described method of using a square member as a spacer, several types of square members have to be prepared having height dimensions according to the dimension of the gap between the periphery of the rehabilitation tube and the inner wall of the existing pipe. In addition, in the case of the spacer including the above-mentioned bolt, a screw hole for the bolt must be made into the block constituting the rehabilitation pipe, and furthermore, it is necessary to fill the screw hole in a later step. In any case, there was a problem that adjusting the position of the rehabilitation tube was difficult, and that the positioning could not be performed simply and in a short time.

Therefore, it is an object of the present invention to provide a positioning spacer capable of appropriately adjusting the position of a rehabilitation pipe inside an existing pipe during an existing pipe rehabilitation work, and to provide a position adjustment method using such a spacer.

The spacer according to the present invention includes a first wedge-shaped member inserted into a gap between the existing tube and the regenerating tube to adjust the position of the regenerating tube with respect to the existing tube, and inclined at a predetermined angle; A second wedge-shaped member inclined at an angle equal to the inclination angle of the first wedge-shaped member and overlapping the first wedge-shaped member by aligning an inclined angle surface; And locking means for hanging the second wedge-shaped member in a plurality of locking positions so that the second wedge-shaped member is movable relative to the first wedge-shaped member and cannot move in the reverse direction. The second wedge-shaped member is sequentially moved to one of the locking positions to increase the overall height of the upper spacer in steps.

The method for adjusting the position of the rehabilitation tube according to the present invention uses a spacer having the first and second wedge-shaped members. The entire spacer is first inserted into the gap between the existing tube and the rehabilitation tube with the second wedge-shaped member overlapping the first wedge-shaped member. Then, the second wedge-shaped member is pressed in the insertion direction to move relative to the first wedge-shaped member, so that the entire height of the spacer is sequentially adjusted for the position of the rehabilitation tube with respect to the existing tube. It is characterized by increasing step by step.

The present invention can perform position adjustment by increasing the overall height of the spacer to the desired height using a very simple procedure. That is, the second wedge-shaped member moves only in the insertion direction with respect to the first wedge-shaped member. Due to this, the position adjustment can be performed very simply for a short period of time. In particular, during rehabilitation of existing pipes, it is ideal for adjusting the position of rehabilitation pipes in the vertical direction with respect to the existing pipes. Such positioning is simple and is performed in a short time period, and it is necessary to perform any specific procedure in the post-process. does not exist. Moreover, since the spacer consists of only two types of members, namely, the first and second wedge-shaped members, it can be manufactured simply and at low cost.

Additional features, features, and various advantages of the present invention will become apparent from the accompanying drawings and the following detailed description of the invention.

Embodiments relating to adjusting the position of rehabilitation pipes in existing pipes, such as sewer pipes, in the existing pipe rehabilitation work will be described below. Although both existing and rehabilitation tubes are described as cylindrical tubes in this embodiment, the present invention also provides that the cross-sectional shape of a prospective pipe orthogonal to the tube length direction is non-circular, for example rectangular. It is also applicable to position adjustment. In addition, the present invention is also applicable when the cross-sectional shape of the rehabilitation tube is not closed-like, such as a literal pipe, but rather is open on one side, for example horseshoe or semicircular.

As shown in Fig. 11 and Fig. 12, in the existing pipe rehabilitation work of the embodiment, a rehabilitation pipe 3 having a smaller inner diameter of the existing pipe 4, such as a sewage pipe, with an outer diameter is placed inside the existing pipe 4. The laying is carried out by sequentially joining the ring-shaped tubular units 2 formed by joining the plurality of segments 1 in the circumferential direction.

1 shows the entire top surface of this segment 1. FIG. 2 is a side view seen from the arrow C in FIG. 1. 3 is a cross-sectional view taken along the line A-A of FIG. 4 shows the lower surface of the segment 1.

The segment 1 corresponds to one of a plurality of equal parts, for example five equal parts, in the circumferential direction of the tube unit 2, and is formed integrally from the transparent plastic. Segment 1 has an inner plate 101 which has a predetermined width and is bent in an arc, for example at an angle of 72 degrees; Side plates 102 and 103 set outwardly along both edges of the arc; End plates 104 and 105 set outwardly along both end edges of the arc; And two reinforcing plates 106 each having a high rear surface and a reinforcing plate 107 having a low rear surface, each of which is recessed outwardly on the inner plate 1.

Two openings 101a are formed at both ends of the inner plate 101. This is to carry out the work of internally fixing the segment 1 with the coupling bolt 6 (see FIGS. 8 and 9).

Multiple (14 here) bolt through holes 102a and 103a are formed in the side plates 102 and 103, respectively, at predetermined intervals in the circumferential direction of the arc described above. Its diameter is slightly smaller than the diameter of the head or nut 10 of the bolt 9 for mutually coupling the tube units 2 in the longitudinal direction, as shown in FIG. 10.

In order to insert the joining bolts 6 (see FIGS. 8 and 9) for mutually joining the segments 1 in the circumferential direction of the existing pipe, the bolt through holes 104a and 105a are respectively end plates 104 and 105. Is formed within. In addition, as shown in Fig. 7, a V-shaped groove 104c is formed in the central portion of the outer surface of the end plate 104; A mating part 104d including a groove on the upper side and a protrusion on the lower side thereof is formed extending in the width direction at the lower end thereof. Further, protrusions 105c and fitting portions 105d having opposite shapes of grooves 104c and fitting portions 104d are formed at corresponding positions on the outer surface of end plate 105, respectively.

The reinforcement plates 106 and 107 reinforce the mechanical strength of the entire segment 1, where a number of bolt through holes for inserting bolts 9 (see FIG. 10) for joining the tubing unit 2 are shown. 106a and notched parts 107a are formed such that their positions correspond to the positions of the bolt through holes 102a and 103a of the side plates 102 and 103, respectively. The diameter of the bolt through hole 106a is only slightly larger than the diameter of the shaft portion of the bolt 9, but smaller than the diameter of the head of the bolt 9 or the diameter of the nut 10.

Further, in order to prevent deformation of the inner surfaces of the side plates 102 and 103 and both sides of the reinforcement plates 106 and 107, the inner surfaces of the side plates 102 and 103 and both sides of the reinforcement plates 106 and 107 (reinforcement plates) A plurality of laterally projecting small protrusions 102b, 103b, 106b and 107b on only one side of one of the 107 are disposed between the adjacent bolt through holes 102a, 103a, 106a and the notch 107a. It is formed to alternate each at the position of. As shown in Fig. 5 (secondary view in the direction of the arrow D in Fig. 1) and Fig. 6 (sectional view taken along the line BB in Fig. 1), they are formed in a right triangle so that the base is formed of the inner plate 101. In succession. These are provided with a rebar (not shown) in a circumferential direction along the inner wall of the existing pipe 4 in a circumferential direction to reinforce the composite pipe consisting of the existing pipe 4, the regeneration pipe 3 and the filler material. In this case, it is formed in such a shape to avoid the lever.

6, along the side edges of the inner plate 101 and across its entire length, there is a fitting portion 102c of which the upper side is a groove and the lower side is a projection of the outer side of the side plate 102. Formed at the bottom; The fitting portion 103c having the opposite shape of the fitting portion 102c is formed at the lower end portion of the outer surface of the side plate 103.

In the existing tube rehabilitation construction using the segment 1 constituted of the above structure, as shown in FIG. 11, the segment 1 is first brought into the manhole 5 communicating with the existing tube 4, but before As shown in FIG. 10, the fastening bolt 9 of the pipe unit 2 is fixed to the segment 1.

To fix the bolt 9, the bolt 9 is first inserted in one of the side plates 102 and 103 of the segment 1, for example in the bolt through hole 102a of the side plate 102, and the reinforcing plate It is inserted through the bolt through hole 106a of the 106 and 107, the notch part 107a, and the bolt through hole 103a of the side plate 103. Then, the head of the bolt 9 is inserted to the position which contacts the reinforcement board 106 of the side plate 102 side. Moreover, the bolt 9 screws the nut 10 at the distal end side of the bolt 9 protruding outward from the side plate 103, and the nut to a position contacting the reinforcing plate 106 on the side plate 102 side. (10) is tightened and fixed by inserting the cylindrical-shaped positioning member 19 at the tip side of the bolt 9 to the position contacting the reinforcing plate 106 on the side plate 103 side. The positioning member 19 positions the bolt 9 concentrically with the bolt through hole 103a and mutually aligns the positions of the bolt through holes 102a and 103a of the combined pipe unit 2 as described below. Let's do it.

Moreover, the number of bolts 9 to be fixed is less than half of the number of bolt through holes 102a and the like, and the bolts 9 are fixed to each bolt through hole or to all the plurality of bolt through holes. The length of the bolt 9 is such that the length of the portion protruding from the side plate 103 of the fixed bolt 9 is equal to the width of the segment 1 (from the outer side of the side plate 102 to the outer side of the side plate 103). Slightly smaller than].

Therefore, the plurality of segments 1 to which the bolts 9 are fixed are engaged in the circumferential direction, as shown in FIGS. 7 to 9. For this purpose, the projection 105c and the fitting portion 105d of the end plate 105 of the segment 1 on the left side of FIG. 7 are first wound with the groove 104c of the end plate 104 of the segment 1 on the right side. Since it fits into the engaging part 104d, the end plates 104 and 105 are brought into close contact with each other. Next, the segments 1 and 1 are connected to the end plates 104 and 105 at the openings 10la of the inner plate 101 of the right segment 1, as shown in FIGS. 8 and 9. Insert through the bolt through holes 104a and 105a of the screw, insert the nut 7 from the opening 10la of the segment 1 on the left side, and screw it to the bolt 6 to the end plate 105. They are joined together by tightening. After joining, a cover (not shown) filling the opening 10la is fitted in the opening 101a and fixed, for example, by contact with an engagement mechanism (not shown).

Therefore, since the plurality of segments 1 are sequentially joined in the circumferential direction, as shown in FIG. 11, the tubing unit 2 is assembled. Moreover, the pipe unit 2 assembled in sequence is carried to the regeneration position inside the existing pipe 4, and is sequentially joined in the longitudinal direction, so that the regeneration pipe 3 is assembled and laid.

10 shows the shape in which the tube units 2 are joined together by bolts 9. In order to join the left tube unit 2 to the right tube unit 2, the bolt 9 protruding from the side plate 103 of the segment 1 of the right tube unit 2 is first of The bolt 9 of the segment 1 is inserted through the side plate 102 of the part which is not fixed. The bolt 9 is inserted through the bolt through holes 102a and 106a of the reinforcing plates 106 and 107 and through the notch 107a so that the positioning member 19 is inserted into the bolt through hole 102a. . Then, the side plate 102 of the segment 1 of the left tube unit 2 is pressed against the side plate 103 of the segment 1 of the right tube unit 2. In this situation, the fitting portion 102c shown in Fig. 6 is fitted to the fitting portion 103c, thereby bringing the side plates 102 and 103 into close contact. The tip end of the bolt 9 protruding from the segment 1 of the right tube unit 2 reaches the inner vicinity of the side plate 103 of the segment 1 of the left tube unit 2. Then, the left side tube unit 2 screwes the nut 10 from the bolt through hole 103a to the tip of the bolt 9 and fixes it to the reinforcement plate 106 adjacent to the side plate 103. 2) is fixed and combined. Therefore, as shown in Figs. 11 to 12, the pipe unit 2 is sequentially joined in the longitudinal direction for laying the regeneration pipe 3 in the existing pipe 4.

The laid reinforcement tube 3 is made of a plastic material and has a low specific gravity, as described above, and thus floats on the filler. Therefore, by pressing down the reinforcement pipe 3, the position of the reinforcement pipe is adjusted so that the lower part of the reinforcement pipe outer periphery contacts the bottom of the existing pipe 4 so as to deviate a little downward from the position concentric with the existing pipe 4. There is a need.

As a result, each time the rehabilitation tube 3 is assembled to a predetermined length (for example, approximately 1 m), as shown in FIG. 13, the spacer 13 is replaced with the inner wall surface of the existing tube 4 and the regeneration tube. Position adjustment is performed by inserting in multiple positions between the upper outer periphery of (3).

The spacer 13 includes a first wedge-shaped member 14 whose upper side is shown in FIG. 14, and a second wedge-shaped member 15 whose lower side is shown in FIG. 15. Both members 14 and 15 are configured to overlap vertically, as shown in FIGS. 17 and 18. Moreover, when the height of the spacer is insufficient, it is configured so that the upper surface side overlaps the lifting member 16 shown in FIG. 16 below, as shown in FIGS. 20 and 21. Arrows A of FIGS. 14 to 16, 19 and 21 indicate the spacer insertion direction, and the spacer 13 is the direction A between the outer periphery of the regeneration tube 3 and the inner wall surface of the existing tube 4. Is inserted. Moreover, these members 14, 15 and 16 are formed of plastic molded articles or metal molded articles.

The overall appearance of the first wedge-shaped member 14 shown in FIG. 14 is substantially wedge-shaped, for example 10 so that the top surface is high on the low and far side near the spacer insertion direction A. FIG. Inclined at a gentle angle slightly less than degrees. The first wedge-shaped member 14 has a guide groove 14a of a predetermined width extending in the longitudinal direction at the center portion, and at its lower surface a plurality of teeth 14b are serrated along the inclined direction. In the form of, for example, a short predetermined pitch of approximately several mm. The cross-sectional shape of the tooth 14b is triangular, and the triangular side face formed on the far side of the insertion direction of the wedge-shaped member 14 is substantially perpendicular to the insertion direction and the triangular side face formed on the close side is inclined (FIG. 17). And FIG. 18).

In addition, the wedge-shaped member 14 has two long holes 14c extending linearly in the longitudinal direction along the guide groove 14a, and at the lower end, two feet having a notch 14f formed at the center thereof. 14d and 14e (notches of foot 14e not shown).

The overall appearance of the second wedge-shaped member 15 shown on the lower side in FIG. 15 is substantially wedge-shaped with the same length and width as the first wedge-shaped member 14. The lower surface is inclined with respect to the longitudinal direction of the wedge-shaped member 15 at an angle substantially equal to the upper surface of the first wedge-shaped member 14, and is inclined so that the near side in the spacer insertion direction is low and the far side is high. Lose. However, the wedge-shaped member 15 is shown with the top side down so that the bottom surface is exposed in FIG. 15, with the direction reversed in FIG. 15.

The wedge-shaped member 15 extends linearly in the longitudinal direction at the center, and has a pitch that is an integral multiple of the pitch of the teeth 14b of the first wedge-shaped member 14 (eg, approximately 10-20 mm). As a result, a plurality of teeth 15b have protrusions 15a formed thereon. The cross-sectional shape of each tooth 15b is a triangle corresponding to each tooth 14b, but the direction is reversed. The triangular side formed on the far side of the insertion direction of the wedge-shaped member 15 is inclined with respect to the insertion direction, and the triangular side formed on the near side is substantially perpendicular. Moreover, the width of the protrusion 15a is slightly less than the width of the guide groove 14a of the first wedge-shaped member 14. In addition, the height (protrusion amount) of the protrusion 15a corresponds to the depth of the guide groove 14a.

Further, on the lower surface of the wedge-shaped member 15, two short cylindrical protrusions 15c are formed on both sides of the protrusion 15a, respectively. The long holes 15d and 15e extend in the longitudinal direction before and after this projection 15c. Further, the wedge-shaped member 15 is circular at its tip portion 15f.

The overall contour of the volume raising member 16 shown in FIG. 16 is a substantially rectangular frame shape having the same length and width as the wedge-shaped members 14 and 15, the upper surface of which is horizontal with respect to the longitudinal direction. Moreover, the longitudinal direction is symmetrical in the width direction, and one of the longitudinal directions may serve as the spacer insertion direction. Walls 16g having a predetermined height H3 (see FIG. 20) are formed on both sides of the lifting member 16 along the longitudinal direction. In addition, two large rectangular holes 16a extend in the longitudinal direction and are formed in the upper surface of the lifting member 16, with partition walls 16b having the same height as the walls 16g on both sides ( H3). In addition, at both ends of the upper surface in the longitudinal direction, steps 16c are formed on both sides in the width direction, and protrusions 16d are formed therebetween. Moreover, the foot 16e is formed in the lower end part of the both ends of the longitudinal direction of the raising member 16, and the notch part 16f is formed in the center part of the width direction.

If the spacer comprises only the first and second wedge-shaped members 14 and 15, the protrusion 15a of the second wedge-shaped member 15 is the guide groove 14a of the first wedge-shaped member 14. ), Each projection 15c is inserted into each elongated hole 14c, and as shown in FIGS. 17 and 18, the lower surface of the wedge-shaped member 15 is a wedge-shaped member. Overlap on the upper surface of (14). The protruding portion 15a is slidably fitted to the groove 14a in the longitudinal direction. By this fitting, the wedge-shaped members 14 and 15 are aligned in the longitudinal direction, and their positions in the width direction are also aligned, thereby preventing the wedge-shaped members 15 from slipping or falling in the width direction. .

When the wedge-shaped member 14 and the wedge-shaped member 15 overlap each other in this manner, the teeth 15b respectively engage with one of the plurality of teeth 14b of the wedge-shaped member 14. do. However, as shown by arrow A in FIG. 18B, when the wedge-shaped member 15 is pressed in the inserting direction, due to the shape of the teeth 14b and 15b that are mutually engaged, the teeth 15b are depressed. 14b) go up. This makes it possible for the wedge-shaped member 15 to move in the insertion direction without engaging the wedge-shaped member 14. Moreover, the movement in the insertion direction of the wedge-shaped member 15 is guided through the guide groove 14a and the protrusion 15a. Moreover, the movement range is a position where the protrusion 15c of the wedge-shaped member 15 contacts the end edge of the side close to the insertion direction of the long hole 14c of the wedge-shaped member 14 (hereinafter, the minimum position). To a position (hereinafter referred to as a maximum position) in contact with an end edge on the far side in the insertion direction.

As described above, the wedge-shaped member 15 is movable in the insertion direction: however, with the teeth 14b and 15b engaged, the wedge-shaped member 15 is pulled in the opposite direction of the insertion direction. Due to the shape of the teeth 14b and 15b, the teeth 15b are caught by the teeth 14b and as a result cannot be moved in the opposite direction of the insertion direction with respect to the wedge-shaped member 14.

Based on the above structure, by pressing the wedge-shaped member 15 in the inserting direction, the wedge-shaped member 15 is pitched with respect to the wedge-shaped member 14 to the minimum position from the maximum position to the maximum position 14b. The wedge-shaped member 15 can be moved in a sequential position in order to be unable to move in the inserting direction or the reverse direction. Therefore, by engaging each of the first and second wedge-shaped members with each other, a locking means for hanging the first and second wedge-shaped members in a plurality of locking positions is obtained, thereby making it possible to vary the spacer height at each locking position. Can be.

FIG. 18A shows the minimum position of the wedge-shaped member 15, and FIG. 18B shows the state of the maximum position. In the minimum position state, the total height of the wedge-shaped members 14 and 15 (total height of a pair of spacers) is the minimum height indicated by the sign H1; Moreover, the more the wedge-shaped member 15 moves in the insertion direction, the higher the wedge-shaped member 15 rises along the inclined top surface of the wedge-shaped member 14, and consequently the total height. Becomes higher; This reaches the maximum height indicated by the sign H2 at the maximum position. By sequentially moving the wedge-shaped member 15 to the pitch corresponding to the pitch of the teeth 14b from the minimum position to the maximum position, the total height of the wedge-shaped members 14 and 15 is maximum at the minimum height H1. It can be set in stages at small-height pitches (eg pitch less than 1 mm) to the desired height up to height H2.

When spacers of only the wedge-shaped members 14 and 15 are used to adjust the position of the rehabilitation tube 3, as shown in Fig. 19, the wedge-shaped member 14 has its own feet 14d and 14e. ) Is set to engage the two reinforcement plates 106 of the segment 1. The wedge-shaped member 15 is then placed in a gap between the inner wall of the existing pipe 4 and the outer circumference of the regenerating tube 3 to set the wedge-shaped members 14 and 15 above the perimeter of the regenerating tube. Is inserted from Moreover, the wedge-shaped member 15 is pressed in the insertion direction indicated by arrow A to move the insertion direction with respect to the wedge-shaped member 14, so that the total height of the wedge-shaped members 14 and 15, That is, the total height of the spacers is sequentially increased step by step to a very small pitch as described above, such that the wedge-shaped member is moved to a position where the height corresponds to the desired gap size, for example as indicated by the broken line. The position can be adjusted by moving (15).

Moreover, since the upper side of the tip 15f of the wedge-shaped member 15 is circular, the tip 15f is not caught by the inner wall surface of the existing pipe 4, so that the wedge-shaped member 15 moves smoothly. Can be. In addition, the upper surface of the wedge-shaped member 14 and the lower surface of the wedge-shaped member 15 are inclined at the same angle and the upper surface of the wedge-shaped member 15 is horizontal. As a result, the spacer can stably contact the inner wall surface of the existing pipe 4, and can be stably inserted into the gap between the inner wall surface of the existing pipe 4 and the outer periphery of the rehabilitation pipe 3. Moreover, the dimensional relationship of the feet 14d and 14e of the wedge-shaped member 14 is preset so that the two reinforcement plates 106 engage with this foot without any action.

Therefore, the position of the rehabilitation tube 3 can be adjusted by the spacer composed of the wedge-shaped members 14 and 15; However, if the dimension of the above-described gap to be set by the spacer is larger than the overall height dimension H2 at the maximum position of the wedge-shaped members 14 and 15, one lifting member 16 as shown in FIG. Or as shown in 21, a plurality of lifting members 16 overlap the bottom of the wedge-shaped member 14 depending on the dimensions of the lacking portion.

At this time, the feet 14d and 14e and the notch 14f at both ends of the wedge-shaped member 14 are engaged with the stepped portions 16c and the protrusions 16d at both ends of the lifting member 16, respectively. The mold member 14 is superimposed on the lifting member 16. Therefore, the wedge-shaped member 14 does not slide in the longitudinal direction or the width direction from the lifting member 16.

In addition, when the plurality of lifting members 16 overlap, the feet 16e and the notches 16f at both ends of the upper lifting member 16 are provided with the stepped portions 16c and the protrusions at both ends of the lower lifting member 16. By joining and overlapping with 16d), the upper lifting member 16 does not slip from the lower lifting member 16.

In addition, the lower surfaces of the walls 16g and the partitions 16b on both sides of the upper lifting member 16 contact the upper surfaces of the walls 16g and the partitions 16b on both sides of the lower climbing member 16, It is supported on the lifting member 16. Therefore, when the plurality of lifting members 16 are overlapped, as shown in FIG. 21, the total height H4 of the spacer is overlapped with the partition 16b as shown in FIG. 20 every time the overlapping members 16 are overlapped. It can be as high as the height H3 of the walls 16g on both sides.

The overall height of the spacer can be sequentially increased step by step to a desired height and the position of the regeneration tube 3 consists of wedge-shaped members 14 and 15 and a lifting member 16 superimposed on the outer periphery of the regeneration tube 3. Setting a spacer; As in the case of the spacer composed of only the wedge-shaped members 14 and 15 described above, it can be adjusted by pressing the wedge-shaped member 15 to move in the insertion direction with respect to the wedge-shaped member 14.

While laying the rehabilitation pipe 3, the position adjustment by the spacer of this type is performed about every 1 m for the plurality of pipe units 2. When laying and positioning of the full length of the reinforcement tube 3 is completed, a support (not shown) is provided inside the reinforcement tube 3 to prevent deformation of the reinforcement tube 3 while filling the filling material. It is installed vertically and horizontally horizontally at intervals of about several m. After that, as shown in FIG. 13, the filler material 12 includes a space in the gap between the inner wall of the existing pipe 4 and the outer periphery of the rehabilitation pipe 3 and the inner plate of the segment 1 of the rehabilitation pipe 3. 101 is filled into the outer space.

The filler 12 is composed of a resin mortar mainly composed of cement mortar, epoxy resin, polyester resin, or the like. Filling forms a hole 1a at an appropriate position of the upper side segment 1 every approximately several m of the length of the rehabilitation pipe 3, connects the filling hose 11 to it, and fills the filling material (from the hose 11). 12) by injection. Moreover, prior to this filling, the gap between the outer periphery of the entire length of the assembled reinforcement tube 3 and the inner wall surface of the existing tube 4 may be a resin putty or mortar or the like (not shown). It is filled with a sealing material consisting of.

Moreover, since the filler 12 also flows into the holes 14c, 15d, 15e, 16a, etc. of the spacer, no cavity is formed in the spacer.

After the filling of the filling material 12 is completed, the filling material 12 is solidified and cured, after which the hole 1a is filled with the sealing material and the support post (not shown) is removed, so that the existing pipe rehabilitation work is completed. .

According to the embodiment as described above, the position adjustment can be performed by increasing the overall height of the spacer to the desired height, and the position of the regeneration tube 3 can be adjusted very simply and in a short time by a very simple procedure. In addition, there is no need to manufacture the screw holes for bolts as in the case of conventional spacers, and therefore no specific procedure is necessary, such as filling the screw holes in a later process. Moreover, it is not necessary to prepare various types of spacers having different heights as in the conventional spacers, and the position adjustment can be appropriately performed for different gap dimensions by preparing only three types of members.

Furthermore, in the structure of the spacer of the above-described embodiment, the first and second wedge-shaped members 14 and 15 are vertically inverted to remove the feet 14d and 14e of the member 14 to remove the second wedge-shaped member. And the foot to the member 15 to make the first wedge-shaped member.

In addition, the surface of the second wedge-shaped member 15 facing the existing pipe is flat and not inclined; Specifically, when inserted into the gap between the existing pipe and the rehabilitation pipe, since the surface does not make contact with the inner circumferential surface of the existing pipe, the surface facing the existing pipe is curved in the circumferential direction, and the curved surface is the same curvature as the inner circumferential surface of the existing pipe. The surface contact can be further improved. Also, the pitch of the inclined direction of the teeth 14b of the first wedge-shaped member 14 is different from the pitch of the inclined direction of the teeth 15b of the second wedge-shaped member 15, but to be made of the same pitch. Can be.

Moreover, the positioning spacer according to the present invention and the positioning method using the same are not limited to the adjustment of the position of the rehabilitation pipe in the existing pipe rehabilitation work, but rather to the position adjustment in which the spacer is inserted into the gap between the fixed object and the object to be adjusted. It can be used extensively.

1 is a top view showing the structure of a segment constituting the rehabilitation pipe assembled inside the existing pipe in the existing pipe rehabilitation operation of the embodiment of the present invention.

FIG. 2 is a side view seen from the direction of arrow C in FIG. 1. FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a bottom view of the segment;

5 is an auxiliary view seen from the direction of the arrow (D) of FIG.

6 is a cross-sectional view taken along the line B-B of FIG.

7 is a longitudinal side view illustrating a method of mutually joining segments.

8 is a longitudinal sectional view showing a state in which segments are coupled to each other;

9 is a cross-sectional view illustrating a state in which segments are coupled to each other.

Fig. 10 is a partial cutaway sectional view illustrating a method of mutually joining tube units constituted by joining segments.

FIG. 11 is a cross-sectional view showing a state in which a rehabilitation pipe is laid by bringing a segment into a coupling pipe unit and an existing pipe. FIG.

12 is a cross-sectional view showing a shape in which the entire length of the rehabilitation pipe is laid.

FIG. 13 is a cross-sectional view showing a state in which filler is injected into a space of a gap between an outer circumference of the laid reinforcement pipe and an inner wall surface of the existing pipe; FIG.

14 is a perspective view showing the structure of a first wedge-shaped member constituting a spacer for adjusting the position of a rehabilitation tube;

15 is a perspective view of the lower surface side of the second wedge-shaped member constituting the spacer;

16 is a perspective view of a lifting member constituting a spacer;

FIG. 17 is an explanatory view showing how the first and second wedge-shaped members overlap each other; FIG.

18A is an explanatory diagram showing a minimum position of a spacer in an overlapping state;

18B is an explanatory diagram showing a maximum position of a spacer in an overlapping state;

19 is an explanatory diagram showing a state in which the position of the rehabilitation pipe is adjusted by the spacer;

Fig. 20 is an explanatory view showing how the first and second wedge-shaped members and the lifting members overlap.

Fig. 21 is an explanatory diagram showing a state in which the first and second wedge-shaped members and the two lifting members overlap.

* Explanation of symbols for the main parts of the drawings

1. Segment 2. Tubular unit

3. Rehabilitation Hall

5. Manhole 6.Segment connection bolt

7. Nut for connecting segments 9. Bolt for connecting tubing unit

10. Nut for connecting the tubing unit 11.Hose for filling

12. Filling material 13. Spacer

14. First wedge-shaped member 14a. Guide home

14b. This 14c. Long hall

14d, 14e. Foot 15. second wedge-shaped member

15a. Protrusion 15b. this

15c. 16. Protrusion

Claims (10)

A spacer inserted into a gap between an existing pipe and a rehabilitation pipe to adjust a position of the rehabilitation pipe with respect to the existing pipe, A first wedge-shaped member inclined at an angle; A second wedge-shaped member inclined at an angle equal to the inclination angle of the first wedge-shaped member and overlapping the first wedge-shaped member by aligning an inclined angle surface; And And engaging means for engaging the second wedge-shaped member in a plurality of locking positions such that the second wedge-shaped member is movable relative to the first wedge-shaped member and cannot be moved in the reverse direction: And the second wedge-shaped member sequentially moves to one of the locking positions to incrementally increase the overall height of the spacer. 2. The teeth of claim 1 wherein teeth are formed at a predetermined pitch on the inclined surface of the first wedge-shaped member, and teeth engaging with the teeth of the first wedge-shaped member on the inclined surface of the second wedge-shaped member are equal to the predetermined pitch. Or formed with a different pitch, and the locking means is achieved by engaging the first and second wedge-shaped members with each other. 2. The linear groove of claim 1, wherein a linear groove is formed on one of the inclined surfaces of the first wedge-shaped member or the inclined surface of the second wedge-shaped member, and on the other side, a linear protrusion slidably engaged with the groove is inclined. A rehabilitation tube positioning spacer characterized in that it is formed in the direction of the line to enable the second wedge-shaped member to move in the insertion direction with respect to the first wedge-shaped member. 4. The rehabilitation tube positioning spacer according to claim 3, wherein the first and second wedge-shaped members are formed in the linear groove or the linear protrusion. 2. A linear long hole is formed on one side of the inclined surface of the first wedge-shaped member and the inclined surface of the second wedge-shaped member, and a projection is inserted into the long hole on the other side. And the range of movement of the insertion direction of the second wedge-shaped member relative to the first wedge-shaped member is controlled through the elongated hole and the protrusion. 2. The rehabilitation tube positioning spacer according to claim 1, wherein the foot engaging with the rehabilitation tube is formed at lower ends of both ends of the first wedge-shaped member. 2. The rehabilitation tube positioning spacer according to claim 1, further comprising a lifting member at the bottom of the first wedge-shaped member for raising the overall height of the spacer. 8. The engagement member according to claim 7, wherein on the lifting member, an engagement portion is engaged with the first wedge-shaped member or lift member overlapping the upper side and an engagement portion is engaged with the lift member overlapping the lower side. Rehabilitation Pipe Positioning Spacer. As a rehabilitation pipe position adjustment method using the spacer according to claim 1 in an existing pipe rehabilitation work in which a rehabilitation pipe is installed inside the existing pipe, Inserting an entire spacer into a gap between the existing tube and the reinforcement tube with the second wedge-shaped member overlapping the first wedge-shaped member; And The second wedge-shaped member is urged in the insertion direction to move relative to the first wedge-shaped member so that the overall height of the spacer is sequentially increased to a desired height for position adjustment of the rehabilitation tube with respect to the existing pipe. Rehabilitation tube position adjustment method comprising the step of making. As the rehabilitation pipe position adjustment method using the spacer according to claim 7, in the existing pipe rehabilitation work for installing the rehabilitation pipe inside the existing pipe, Inserting an entire spacer into a gap between the existing tube and the reinforcement tube with the second wedge-shaped member overlapping the first wedge-shaped member; And The second wedge-shaped member is urged in the insertion direction to move relative to the first wedge-shaped member so that the overall height of the spacer is sequentially increased to a desired height for position adjustment of the rehabilitation tube with respect to the existing pipe. Rehabilitation tube position adjustment method comprising the step of making.