JP2003021265A - Manufacturing method for pipeline - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out a diameter-expanding lining method by a tube making machine even in a secondary lining process for a tunnel by allowing a rotational advance of the tube making machine on a segment inner circumferential face and braking on the rotational advance. SOLUTION: This pipeline manufacturing method includes a primary lining process comprising the steps for forming a cylindrical body SS by sticking arcuate segments S on the inner circumferential face of a tunnel T, and projecting a rail R, R extended in the tunnel longitudinal direction to transverse ribs Sb at the lower part of the inner circumferential face of the cylindrical body, and attaching spacer members Q1 and Q2 to the respective ribs in a peripheral direction of the respective rails for filling their height difference so that the respective rails conform to the tip of the respective ribs, and a secondary lining process, wherein front and rear guide frames Ga and Gb are engaged together freely movably in the tunnel longitudinal direction while restricted from rotation to the respective rails, the tube making machine is installed to the respective guide frames to be rotationally advanced or braked, and the pipe making machine is braked so that a spiral tubular body PP is expanded in diameter by feeding force of a profile P to be brought close to the inner circumferential face of the cylindrical body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner peripheral surface of a tunnel formed by excavating the ground with an excavator, in which a primary lining by segments and a strip-shaped profile are spirally wound. The present invention relates to an improvement in a method for manufacturing a pipeline by manufacturing a pipeline by a secondary lining lined with a spiral tube formed.

[0002]

2. Description of the Related Art When excavating the ground by an excavator to form a tunnel, a flat lining segment curved in an arc shape divided in the circumferential direction is usually provided on the inner peripheral surface of the tunnel. After performing the primary lining step of forming a tubular body by sequentially attaching along the ring shape and also in the longitudinal direction of the tunnel, the inside of the primary lining tunnel (in the segment) I try to do a secondary lining. In this case, a secondary lining of the tunnel inner peripheral surface (segment inner peripheral surface) is performed with a synthetic resin tube.

Regarding existing pipes such as agricultural water pipes, water and sewage systems, and gas pipes, the existing pipes are lined in order to rehabilitate the old pipes that have deteriorated due to cracking or corrosion.

13 to 16 show an example of such a lining construction device in an existing pipe and a lining construction method using the device (for example, Japanese Patent Laid-Open No. 8-200).
547).

FIG. 13A shows an example of a synthetic resin band member formed in a spiral tubular body.
(B) shows the joining state of the edge portions of the strip-shaped members that are in contact with each other.

In FIG. 13 (a), P'denotes a strip-shaped member, which is T in the longitudinal direction on the outer surface with a constant width direction interval.
A mold rib is molded, a female locking structure P1 'is molded at the base of the T-shaped rib on one edge side of the belt-shaped member P', and a male locking protrusion is formed on the other edge side of the belt-shaped member P '. The strip P2 'is formed, and as shown in FIG. 13 (b), the spiral strip-shaped member P is formed.
The adjacent edge portions of ′ are joined by fitting the female locking groove P1 ′ and the male locking ridge P2 ′.

FIG. 14 shows a pipe-making machine. A guide roller 3'is axially supported between the front and rear frames 11 ', 12' of the pipe-making machine 1 "at a predetermined mutual interval, and an outer surface roller 21 'and an inner surface roller 2 are provided.
The joining mechanism 2'comprising 2 ', a gear box 24', a hydraulic motor 25 ', etc. is attached to the front and rear frames 11', 12 '. In FIG. 14, 23 'is a rotary joint that connects the fixed pipe of the hydraulic motor 25' and the hydraulic hose 231 '.

The joining process between the adjacent edge portions of the belt-shaped member P'by the joining mechanism portion 2'is as shown in FIG. 15, and a hydraulic motor is provided between the outer surface roller 21 'and the inner surface roller 22'. The belt-shaped member P'is sent in a spiral shape by the driving force of 25 ', and the spiral tubular body PP' (the belt-shaped member P'is joined by joining the female locking groove P1 'and the male locking projection P2'. ´)
The belt-shaped member P'supplied to the first joining mechanism portion 2'is fitted and joined.

FIG. 16 is an explanatory view showing a lining construction method using the above-mentioned lining construction apparatus. A is an existing pipe, M1 is a starting side manhole, and D'is a belt-shaped member arranged on the starting side manhole. A supply drum, M2 is a reaching manhole, PM 'is a hydraulic pump arranged on the reaching manhole M2, and PM1' is a hydraulic hose.

16, in the pipe making machine 1 ", the outer surface roller 21 'and the inner surface roller 22' of the joining mechanism portion 2'shown in FIG. 14 are synchronously rotated by the drive of the hydraulic motor 25 ', and these rollers 21' are rotated. , 22 ', the belt-shaped member P'is the pipe making machine 1 "
14, one edge of the belt-shaped member P'which is fed to the pipe making machine 1 "from the drum D'is spirally wound while being fed onto the guide roller 3'of the same as described in FIG. Then, the guide roller 3'is joined to the other edge of the belt-shaped member P'which is spirally wound and joined by the fitting joining structure.

In this case, the feeding speed of the belt-shaped member P'of the joining mechanism 2'by the hydraulic motor 25 'and the feeding speed of the belt-shaped member P'from the drum D'are balanced, and the feeding speed is balanced. The spiral tubular body PP 'is formed.

In FIG. 16, the starting side (the other side in the tunnel direction) of the spiral tubular body PP 'is substantially fixed to the existing pipe A, and the outer surface roller 21' of the joining mechanism portion 2'is fixed by a hydraulic motor 25 '. And the driving force applied to the inner surface roller 22 'is transmitted to the belt-shaped member P', and since the lined spiral tubular body PP 'is fixed against this transmitted force, the pipe making machine 1 "is rotated and advanced. In this case, if the feeding speed of the belt-shaped member P ′ is V and the diameter of the spiral tubular body PP ′ is r, the rotation speed of the pipe manufacturing machine 1 ″ is given by approximately V / 2πr ((of the belt-shaped member P ′). Since the winding direction is substantially in the pipe circumferential direction, the winding angle is 0 with respect to the pipe circumferential direction), and the forward speed is given by Vsinθ with the winding angle being θ, and the pipe making machine 1 ″
Reaches the reaching manhole M2, manholes M1, M
The lining work for one pass between the two is substantially completed.

[0013]

By the way, there is a demand for applying the above-described lining construction method by the lining construction apparatus to the secondary lining process of the tunnel.

However, in the lining construction by the above-mentioned lining construction apparatus, the spiral tubular body P which is fed out to the rear of the pipe making machine 1 "as the pipe making machine 1" is rotated and moved forward.
The outer diameter of P ′ is equal to the outer diameter of the spiral tubular body PP ′ in the pipe making machine 1 ″, and the joining mechanism is provided between the outer surface of the spiral tubular body PP ′ and the inner surface of the existing pipe A as shown in FIG. Since the outer surface roller 21 'of the portion 2'is provided, the outer diameter of the spiral tubular body PP' in the pipe making machine 1 "becomes smaller than the inner diameter of the existing pipe A, and the lining outer surface and the inner surface of the existing pipe A are reduced. Gap between and △ G
(Appearing in FIG. 14) remains, which makes the inner diameter of the lining considerably smaller than the inner diameter of the ideal lining when the gap ΔG is zero, and the pipe (spiral tubular body PP
A considerable decrease in the flow passage cross-sectional area of ′) cannot be avoided.

On the other hand, in consideration of such a decrease in the flow passage cross-sectional area of the pipeline, it is possible to increase the excavation diameter of the tunnel by the excavator in the primary lining process. There is a problem that the cost of this soil disposal increases significantly and the cost of this soil disposal increases.

Therefore, the inventors of the present invention have found that in an existing pipe, a long strip-shaped member having joints on both side edge portions is continuously fed by a pipe-making machine and spirally wound to join the joints. Are joined by fitting to form a spiral tubular body, and the pipe-making machine is rotationally advanced by the feed force of the belt-shaped member as the tubular body is formed, and a braking force is applied to this rotational advance to form the above. We proposed a diameter expansion lining method that expands the diameter of the spiral tubular body and brings it closer to the inner surface of the existing pipe.

In that case, it is necessary to brake the rotational advance of the pipe making machine in order to practice the diameter expansion lining method.

However, even if an attempt is made to apply such a pipe making machine to the secondary lining of a tunnel, the segment itself is divided in the circumferential direction of the tunnel. Since there is unevenness due to the rib, it is impossible to rotate and advance the pipe manufacturing machine before braking the pipe manufacturing machine with respect to the inner peripheral surface of the segment.

The present invention has been made in view of the above points, and an object of the present invention is to allow a pipe-making machine to rotate and advance on the inner peripheral surface of a segment having a rib and to use a feed force of a belt-shaped member to form a spiral tube. The object is to expand the diameter of the body so as to be close to the inner peripheral surface of the tunnel so that the diameter expansion lining method by the pipe making machine can be practiced even in the secondary lining process of the tunnel.

[0020]

[Means for Solving the Problems] In order to achieve the above-mentioned object, a solution means taken by the invention according to claim 1 and claim 2 is a method for manufacturing a pipe line in which a drilling machine is used in a longitudinal direction. On the inner peripheral surface of the tunnel formed by excavating the ground, the segments divided in the circumferential direction are attached along the ring shape and in the longitudinal direction of the tunnel. After forming a tubular body on the peripheral surface, a rail extending in the longitudinal direction of the tunnel is provided on the inner circumferential surface of the tubular body so as to project radially inward of the tubular body, and A primary lining step of attaching a spacer member for filling the height difference between the rail and the inner peripheral surface of the cylindrical body from the circumferential direction of the cylindrical body so that the rail follows the inner peripheral surface of the cylindrical body. , Turn the rail laid in the above primary lining process An edge that engages a ring-shaped rotation restricting member so as to be movable to one side in the tunnel longitudinal direction in a restricted state, and a continuous strip-shaped member that is continuously fed to this rotation restricting member A pipe-making machine that is spirally wound in the longitudinal direction of the tunnel while being joined between the ends to form a spiral tubular body is mounted so that it can be rotated forward and braked to one side in the tunnel longitudinal direction. A secondary lining step of expanding the diameter of the spiral tubular body by the feeding force of the belt-shaped member to bring it closer to the inner peripheral surface of the tunnel by braking the rotational advance of the tubular machine to one side in the tunnel longitudinal direction. is doing.

Further, as another method of manufacturing the pipeline when only the secondary lining process is changed, as a method for manufacturing the pipeline, one side in the longitudinal direction of the tunnel in a state where rotation is restricted with respect to the rail laid in the primary lining process. The ring-shaped rotation restricting member is engaged so as to be movable to the
Forming a spiral tubular body by forming a spiral tubular body by spirally winding in a longitudinal direction of a tunnel while joining continuously fed long strip-shaped members between adjacent edge portions. The spiral tubular member is mounted so as to rotate and advance to one side in the longitudinal direction of the tunnel at a speed slower than the speed equilibrium with the speed, and the spiral tubular shape is fed by the feeding force of the belt-shaped member during the rotational advance to one side in the longitudinal direction of the tunnel of this pipe making machine. It includes a secondary lining process that expands the diameter of the body to bring it closer to the inner surface of the tunnel.

Due to these particulars, in the pipe making machine, the rotation restricting member, which is restricted in rotation by engagement with the rail extending in the tunnel longitudinal direction, is movably supported on one side in the tunnel longitudinal direction on the inner peripheral surface of the segment. Since it is mounted so that it can be rotated forward and braked to one side in the longitudinal direction of the tunnel, or can be rotated forward by its own drive, the rotational advance of the pipe making machine to one side in the longitudinal direction of the tunnel. It is possible to smoothly brake the flat surface of the rotation restricting member, or to rotate and drive the pipe making machine to the one side in the longitudinal direction of the tunnel at a speed slower than the speed equilibrating with the forming speed of the spiral tubular body. You can do it. As a result, it becomes possible to perform secondary lining by a diameter-expanding lining method in which the diameter of the spiral tubular body is expanded by the feeding force of the belt-shaped member and brought close to the inner peripheral surface of the tunnel using the pipe making machine.

Moreover, since the pipe-making machine is mounted on the rotation restricting member that engages with the rail on the inner peripheral surface of the tubular body, the pipe-making machine can be rotationally advanced to one side in the longitudinal direction of the tunnel. It will be done smoothly.

The rail projecting radially inward from the inner peripheral surface of the tubular body is a spacer member for filling the height difference between the rail and the inner peripheral surface of the tubular body from the circumferential direction of the tubular body. Since it is imitated by the inner peripheral surface of the tubular body by the spacer member, when the spiral tubular body is expanded and brought close to the inner peripheral surface of the tunnel, that is, the inner peripheral surface of the tubular body, And the inner peripheral surface of the tubular body, the unevenness due to the rail is eliminated without causing a difference in height, and the spiral tubular body is made to follow the inner peripheral surface of the tubular body without difficulty and the diameter is expanded. It becomes possible.

On the other hand, the solving means taken by the inventions according to claims 3 and 4 is applied when the inner peripheral surface of the tunnel is formed into a substantially perfect circular shape by excavation using the excavator. 2 shows a method for manufacturing a pipeline.

That is, on the inner peripheral surface of a tunnel formed in a substantially circular shape by excavating the ground in the longitudinal direction by using an excavator, the segments divided in the peripheral direction are arranged in a ring shape. And the tube in the longitudinal direction of the tunnel in order to form a cylindrical body so that the vertical ribs extending in the circumferential direction of the tunnel are connected to the inner circumferential surface of the segment in a rail shape in the circumferential direction of the tunnel. Between the primary lining step to be formed and at least two adjacent vertical ribs that are continuous in a rail shape in the above-mentioned primary lining step, between the edge portions where the long strip-shaped members that are continuously fed are in contact with each other. A pipe-making machine, which is spirally wound in the longitudinal direction of the tunnel while being joined to form a spiral tubular body, is rotated forward and backward to one side in the tunnel longitudinal direction by a plurality of rollers arranged annularly around the machine. It is mounted in a contact state so that it can be braked, and the diameter of the spiral tubular body is expanded by the feeding force of the belt-shaped member during rotation forward of this pipe making machine to one side in the longitudinal direction of the tunnel to approach the inner peripheral surface of the tunnel. It includes a secondary lining process to be performed.

Further, as another method for manufacturing the pipeline when only the secondary lining process is changed, at least two adjacent rail-shaped continuous pipes are used in the primary lining process.
A pipe-making machine that forms a spiral tubular body by spirally winding in the longitudinal direction of a tunnel while joining long strip-shaped members that are continuously fed to two vertical ribs while joining the adjacent edge parts. ,
A plurality of rollers arranged in an annular shape around the roller are mounted in contact with each other so as to rotate and advance to one side in the longitudinal direction of the tunnel at a speed slower than the speed equilibrating with the forming speed of the spiral tubular body. The secondary lining process of expanding the diameter of the spiral tubular body by the feeding force of the belt-shaped member to bring it closer to the inner peripheral surface of the tunnel during the rotational advance to one side in the longitudinal direction of the tunnel.

Due to these particulars, in the pipe making machine, a plurality of rollers arranged annularly around the tunnel are provided on at least two adjacent vertical ribs extending in the tunnel longitudinal direction on the inner peripheral surface of the segment. The rollers are mounted in contact with each other so that they can be rotated forward and braked to one side in the longitudinal direction, or can be rotated forward by their own drive, so that each roller is sandwiched between adjacent vertical ribs and cannot move. Securely contacting at least two vertical ribs without damaging the rotation forward of the pipe making machine to one side in the longitudinal direction of the tunnel, and braking or flattening the flat surface of each vertical rib extending in the longitudinal direction of the tunnel. Therefore, it is possible to smoothly rotate and drive the pipe making machine to one side in the longitudinal direction of the tunnel at a speed slower than the speed equilibrating with the forming speed of the tubular body. As a result, it becomes possible to perform secondary lining by a diameter-expanding lining method in which the diameter of the spiral tubular body is expanded by the feeding force of the belt-shaped member and brought close to the inner peripheral surface of the tunnel using the pipe making machine.

Moreover, each roller contacting at least two adjacent vertical ribs should have a length in the axial direction which is equal to or greater than the dimension between the two vertical ribs, and the rollers can be moved to one side in the longitudinal direction of the tunnel. It is possible to rotate and advance the pipe making machine of the present invention with a simple configuration.

Further, the solution means taken by the invention according to claim 5 shows a method for manufacturing a pipeline which adds more practical steps.

That is, a hose for backfilling material injection is provided in the pipe making machine, and the spiral tubular body is expanded during rotation forward of the pipe making machine to one side in the longitudinal direction of the tunnel so as to be close to the inner peripheral surface of the tunnel. The process further includes the step of filling the backfill material through the hose between the adjacent portions of the tubular body made of the segment and the spiral tubular body made of the strip-shaped member.

Due to this specific matter, the tubular body (segment) and the spiral tubular body (band-shaped member) are accompanied by the forward rotation of the pipe making machine.
The back-filling material is smoothly supplied from the circumferential direction via the hose between the adjacent portions to the spiral tubular body can be reliably fixed to the inner circumferential surface of the segment.

In particular, the solution means devised by the invention according to claim 6 shows a method of manufacturing a conduit which can more securely fix a spiral cylinder to the inner peripheral surface of a segment.

That is, a plurality of lateral ribs extending in the longitudinal direction of the tunnel are provided on the inner peripheral surface of the segment at predetermined intervals in the circumferential direction so as to project inward in the radial direction of the tubular body. The protruding end of each lateral rib is bent upward in the circumferential direction of the tubular body.

Due to this particular matter, the backfill material supplied from the hose into each lateral rib of the segment is prevented from falling downward by the portions bent upward from the projecting ends of the respective lateral ribs. The spiral tubular body can be more reliably fixed to the inner peripheral surface of the tubular body (segment).

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a front view showing an example of a pipeline manufacturing apparatus used when a pipeline is manufactured, and FIG. 2 is a side view thereof.

In FIG. 1 and FIG. 2, S, ... Are segments attached to the inner peripheral surface of the tunnel T formed by excavating the ground and are divided into five circles in the circumferential direction of the tunnel T. It consists of a flat plate curved in an arc shape. The segments S are sequentially attached to the inner peripheral surface of the tunnel T so as to form a ring shape, and are also attached in order in the longitudinal direction of the tunnel T to form a tubular body SS. There is.

At both circumferential edges of each segment S,
Rib-shaped joint piece S extending in the longitudinal direction of the tunnel T
a and Sa are provided so as to protrude inward in the radial direction of the tunnel T, and vertical ribs Sc extending in the circumferential direction of the tunnel T are provided at both widthwise edges of the segment S (both ends in the longitudinal direction of the tunnel T). It is provided so as to project inward in the radial direction of T. Further, on the inner peripheral surface of the segment S, a plurality of lateral ribs Sb, ... That extend in the longitudinal direction of the tunnel T at intervals of 12 degrees in the circumferential direction of the inner peripheral surface are directed radially inward of the tubular body SS. Is projected. The segments S are joined by joint pieces Sa, Sa that are adjacent to each other at five locations in the circumferential direction of the tunnel T, and vertical ribs Sc, Sc that are adjacent to each other in the longitudinal direction of the tunnel T are 12 in the circumferential direction. The tubular bodies SS are formed so that the transverse ribs Sb are continuous in a rail shape in the longitudinal direction of the tunnel T, respectively, by alternately phasing each other and joining them in order. Also, the horizontal ribs Sb and the vertical ribs Sc described above.
Of the joint piece Sa (radially inward end of the tubular body SS) projects substantially at the same height as the tip of the joint piece Sa (radially inward end of the tubular body SS). Each end (protruding end) is bent upward in the circumferential direction of the tubular body SS. Each segment S is attached to the inner peripheral surface of the tunnel T via a fixing means (not shown) such as a stud bolt.

Further, as shown in FIGS. 3 and 4, the lateral ribs S respectively corresponding to the lower positions of the inner peripheral surface of the cylindrical body SS.
b and Sb are provided with a pair of rails R and R extending in the longitudinal direction of the tunnel T. Each rail R has a rolling portion Ra on which a roller with a collar Gd, which will be described later, rolls, and lower ends of the rails R at predetermined intervals in the longitudinal direction of the tunnel T with respect to the horizontal ribs Sb at the lower position of the inner peripheral surface of the tubular body SS. , The upper end of which is joined to the lower surface of the rolling portion Ra to support the rolling portion Ra on the inner peripheral surface of the cylindrical body SS ,.
(Appears in FIG. 3), and is provided so as to protrude radially inward (upward) from the inner peripheral surface of the tubular body SS, that is, the lateral rib Sb.

The cylindrical body S is provided on each lateral rib Sb (on the inner peripheral surface) of the cylindrical body SS corresponding to the circumferential direction of each rail R.
The rails R protruding inward in the radial direction from the lateral ribs Sb of the S are attached to the tips (folded curved surfaces) of the lateral ribs Sb of the tubular body SS.
Similarly to the above, a spacer member Q is attached to fill the difference in height between each rail R and each lateral rib Sb of the tubular body SS from the circumferential direction of the tubular body SS. The spacer member Q includes an inner spacer member Q1 provided between the rails R, R, that is, an inner spacer member Q1 inside each rail R, and an outer spacer member Q2, Q2 provided outside each rail R. ing.
The inner spacer member Q1 has a height around each rail R
The height is set to be almost the same as the tip (protruding end). On the other hand, while the height of each outer spacer member Q2 on the circumferential rail R side is set to be substantially the same as the height (protruding end) of each rail R, on the circumferential anti-rail R side. The height is gradually reduced as it goes, and the height is set so as to converge on each horizontal rib Sb (on the curved surface) of the tubular body SS. in this case,
The spacer member Q (the inner spacer member Q1 and the outer spacer member Q2) is formed by covering the upper surface of a frame body surrounding the periphery with punching metal.

A pair of front and rear guide frames Ga and Gb as rotation restricting members are provided inside the tubular body SS which is continuous in a rail shape in the longitudinal direction of the tunnel T. Each of the guide frames Ga and Gb has a ring shape, and lateral ribs S respectively corresponding to lower positions of the inner peripheral surface of the tubular body SS.
The rails R and R laid on b and Sb are rotatably supported in the longitudinal direction of the tunnel T by the flanged rollers Gd that are rotatably engaged with the rails R and R, respectively. Each of the guide frames Ga and Gb is formed in a substantially T-shape in cross section so as to have a rolling surface Gc that allows the braking wheel 41, the driven wheel 42, and the driven roller 46, which will be described later, to roll, inward in the radial direction. . Further, at the upper left and right positions of the respective guide frames Ga and Gb, the tunnel T is formed on the bent curved surfaces of the left and right lateral ribs Sb and Sb corresponding to the both positions.
Sliding rollers Gr, Gr that slide freely in the longitudinal direction of the
Of the guide frames Ga and Gb in the longitudinal direction of the tunnel T, the rolling of the roller Gd with a collar relative to each rail R and the sliding rollers Gr, to the curved surfaces of the left and right lateral ribs Sb and Sb. It is designed to be performed smoothly by the sliding of Gr.

Inside the tubular body SS, a profile P as a long strip-like member continuously fed from the rear side in the longitudinal direction of the tunnel T (right side in FIGS. 2 and 3) is in contact. A pipe-making machine 1 is provided which is spirally wound on the front side in the longitudinal direction of the tunnel T (left side in FIGS. 2 and 3) while joining between the edge portions to form a spiral tubular body PP. The pipe making machine 1 includes a pair of front and rear frames 11 and 12.
And the joining mechanism section 2 is provided so as to straddle between the frames. The joining mechanism section 2 has a T on the outer surface of the profile P.
Outer roller 21 with grooves for receiving mold ribs and grooves for receiving mating joints on both edges of the profile P
And an inner surface roller 22. The joining mechanism section 2 is
These inner and outer surface rollers 21 and 22 are connected to the hydraulic motor 25 via the gearbox 23 (24 is a rotary joint), and two sets are provided in the circumferential direction. The inner and outer surface rollers 21 and 22 are arranged on the front and rear frames 1.
1, 12, the gearbox 23, the rotary joint 24, and the hydraulic motor 25 are connected to the front frame 11
Supported by. Further, between the front and rear frames 11 and 12, rotatably supported are guide rollers 3, which guide the spiral tubular body PP from the outside in the radial direction under the regulation of the inner diameter.

Further, on the front side frame 11, braking wheels 41, ... And driven wheels 42 ,.
The braking wheels 41 and the driven wheels 42 are supported by arms 43 ,. Each arm 43 connects each braking wheel 41 and each driven wheel 42 to the rolling surface G of the front guide frame Ga by the coil spring 44.
It is designed to be held down to c. Each braking wheel 41
Has a disc brake inside and is configured to exert a braking force. The driven rollers 46, ... Are rotatably supported by the rear frame 12 at predetermined circumferential intervals, and each driven roller 46 rolls on the rolling surface Gc of the rear guide frame Gb. It is designed to do. The front and rear guide frames Ga, Gb
Is each braking wheel 41, each driven wheel 42 and each driven roller 4
When the front and rear frames 11 and 12 (pipe making machine 1) rotate forward by the rolling of the guide frames Ga and Gb of 6 on the rolling surface Gc, they move in the longitudinal direction of the tunnel T. .

Further, as shown in FIG. 2, back filling material injection pipes 5 as hoses for injecting back filling material are attached to the front and rear frames 11 and 12 of the pipe making machine 1. As the backfill material injection pipe 5, a double pipe type pipe in which mortar and a curing agent are mixed and sprayed is applied. And
The back-filling material is filled through the back-filling material injection pipe 5 between adjacent portions of the tubular body SS made of the segment S and the spiral tubular body PP made of the profile P. In addition, 51 is a rotary joint of the backfill material injection pipe, 5
2 is a dolly moving on the rail R, 53 is a backfilling material A tank mounted on the trolley 52, 54 is a pump for the A solution tank, and 55 is a backfilling material B mounted on the trolley 52. A liquid tank, 56 is a pump for the B liquid tank, and 57 is a mixing gun.

In this case, the tubular body SS formed by each segment S, the pair of front and rear guide frames Ga and Gb, and the pipe manufacturing machine 1 constitute a pipe manufacturing apparatus K1.

Next, an example of a method of manufacturing a pipeline using the pipeline manufacturing apparatus K1 will be described.

First, in the primary lining process, the segments S, ... Divided in the circumferential direction are formed on the inner circumferential surface of the tunnel T formed by excavating the ground in the longitudinal direction by using an excavator. It is attached along the ring shape by a fixing means such as a stud bolt and is also attached in order in the longitudinal direction of the tunnel T by the fixing means.

Then, each segment S is divided by 5 in its circumferential direction.
Joint pieces Sa, Sa that are adjacent to each other at a location are joined together, and further, a joint piece S in the longitudinal direction of the tunnel T.
The end portions of a and Sa are also alternately phased by 12 degrees so that the lateral ribs Sb and Sb coincide with each other and joined in sequence. Thereby, the tubular body SS is formed so that the lateral ribs Sb are continuous in the circumferential direction of the tunnel T in a rail shape.

Then, the horizontal ribs Sb, Sb respectively corresponding to the lower positions of the inner peripheral surface of the tubular body SS are attached to the respective horizontal ribs S.
A pair of rails R, R extending in the longitudinal direction of the tunnel T are laid by projecting the rolling portions Ra via supporting pieces Rb, ... Joined to b at predetermined intervals in the longitudinal direction of the tunnel T. After that, an inner spacer member Q1 whose peripheral height is almost the same as the tip (protruding end) of each rail R is attached to the inner side of each rail R (between the rails R and R), and the circumferential anti-rail R The height gradually decreases toward the side, and on each lateral rib Sb of the tubular body SS (on the curved surface)
The outer spacer member Q2 that converges on each of the rails R is attached to the outside of each rail R, so that each rail R protruding above each lateral rib Sb of the tubular body SS is attached to the tip of each lateral rib Sb of the tubular body SS. The height difference between each rail R and each curved surface of each lateral rib Sb of the tubular body SS is filled in from the circumferential direction of the tubular body SS so as to follow the (folded curved surface).

Next, in the secondary lining process, the pair of rails R, R laid in the longitudinal direction of the tunnel T in the primary lining process are rotated in the circumferential direction in the longitudinal direction of the tunnel T while being restricted in rotation. A pair of front and rear guide frames Ga and Gb are engaged so as to be movable. Specifically, the flanged rollers Gd of the front and rear guide frames Ga and Gb are rotatably engaged with the respective rails R, and the sliding rollers Gr and G at the upper left and right positions of the respective guide frames Ga and Gb.
r is slidably brought into contact with the bent curved surfaces of the left and right lateral ribs Sb, Sb, whereby the respective guide frames Ga, Gb
Is movably supported in the longitudinal direction of the tunnel T while being restricted from rotating in the circumferential direction.

Then, the above-mentioned guide frames Ga, G
b, the braking wheel 41 and the driven wheel 42 on the rolling surface Gc.
Also, the pipe making machine 1 is mounted so that the driven roller 46 rolls to rotate forward in the longitudinal direction of the tunnel.

Then, the outer surface roller 21 and the inner surface roller 22 of the joining mechanism portion 2 are driven by a hydraulic pump, and the profile P supplied from the drum on the rear side of the tunnel is applied to the outer surface roller 21 and the inner surface roller 2 of the joining mechanism portion 2.
2 is sent in a spiral shape and is sent to the first joining mechanism section 2 into the female locking groove of the edge of the spiral tubular body PP already formed by the outer roller 21 and the inner roller 22 of the first joining mechanism section 2. The male locking projections on one edge of the profile P are fitted and joined, and the pipe-making machine 1 is rotated forward by the helical feed force of the profile P, and each braking wheel 4 is rotated in response to this rotational advance.
First, a braking force is applied to expand the diameter of the spiral tubular body PP and bring the spiral tubular body PP closer to the inner peripheral surface of the tubular body SS. At this time,
That is, when the diameter of the spiral tubular body PP is increased to approach the inner peripheral surface of the tubular body SS during the rotational advance of the pipe making machine 1 to the one side in the longitudinal direction of the tunnel T, the spiral shape of the tubular body SS and the spiral shape is obtained. Tubular body PP
Instant-hardening mortar (backfilling material) is injected from the backfilling material injection pipe 5 between the adjacent portions. Then, the lining of the spiral tubular body PP on the inner peripheral surface of the tubular body SS over the entire length of the tunnel T is completed. In this case, since the spiral tubular body PP in the tubular body SS at a position apart from the pipe making machine 1 to some extent is substantially fixed to the inner peripheral surface of the tubular body SS, the profile P
The pipe-making machine 1 is forwardly rotated by the helical feed force.

In the above, for the instant setting mortar (backfill material), 3 parts of bentonite to 100 parts by weight of cement are used.
˜15 parts by weight, foaming agent 0.1 to 1.0 parts by weight, retarder 0.5 to 2.5 parts by weight, liquid A 100 parts by weight consisting of 80 to 300 parts by weight and sodium silicate aqueous solution B. A cementitious composition comprising 1 to 30 parts by weight of a liquid can be used, and further 10 to 50% by volume of bubbles is contained in the composition, and after mixing bentonite and water, cement, a foaming agent, a retarder and Mixing sodium silicate, the molar ratio of the sodium silicate aqueous solution (SiO ₂ / Na
₂ O) is 3 to 4, and the viscosity of the composition is 1000 to
By setting the viscosity to 10000 cps, the viscosity can be maintained for 1 hour or less after mixing.

In the above, when the pipe making machine 1 is rotated forward, the spiral tubular body PP fed out from the pipe making machine 1 is moved.
When the braking force m of the pipe making machine 1 acts on the pipe, a shearing force is generated, the braking force becomes large, and when the shearing force becomes a size for sliding and expanding the diameter of the spiral tubular body PP, it is fed out from the pipe making machine 1. When the diameter of the spiral tubular body PP is increased and reaches the inner peripheral surface of the tubular body SS (segment S), the diameter is expanded to the inner peripheral surface of the tubular body SS with the forward rotation of the pipe manufacturing machine 1. The spiral tubular body PP is lined.

This state will be explained with reference to FIG. 5. The pipe making machine 1 pipes the spiral tubular body PP having the radius r at the feed speed V of the profile P and feeds it out. A spiral tubular body PP (lining tube) having an inner diameter R of the tubular body is formed under the profile velocity V, even though the tubular body is rotated at a speed lower than the rotational speed V / 2πr (rotational speed n) that is in equilibrium with the tube speed. As a result, the difference in the exchange of the profile P between the formation speed of the lining pipe PP and the low-speed rotation of the rotation speed n of the pipe making machine 1 results in the spiral tubular body PP.
It has been confirmed that it will be absorbed by the diameter expansion sliding.

In FIG. 5, m is the braking force acting on the pipe making machine 1, r is the pipe making radius, F is the feed force of the profile P, and V is
Is the feed rate of the profile P and R is the inner diameter of the tubular body SS, the shearing force of Fr only acts on the spiral tubular body PP when m <Fr. When m> Fr, because of the braking force m, the shearing force Z regulated by the braking force is the spiral tubular body PP.
And a shearing force satisfying ZR = m acts on the diametrically expanded portion end PPb, and a force per unit length of the circumferential length required for slidingly expanding the profile P (hereinafter referred to as profile fitting force). ) Is f, lining on the inner peripheral surface of the cylindrical body SS is possible when Z> 2πRf, that is, m> 2πR ² f (1) is satisfied.

In this case, the rotational speed at which the profile P is attached to the inner peripheral surface of the cylindrical body SS at the end of the expanded diameter and the pipe making machine 1
Since the rotation speeds of and are substantially equal to each other, the rotation speed n of the pipe making machine 1 is given by n = V / 2πR (2).

In FIG. 5, the shearing force Z at the position of the radius X of the taper expanded portion is given by Z = m / X (3).

When the braking force m is increased, the shearing force m / 2πX also increases and the degree of diameter expansion per unit length of the pipe increases, so that the diameter expansion gradient becomes steeper and the shearing force also increases. As a result, the fitting joint portion is easily opened.

Therefore, the braking force m is required to prevent the opening breakage of the fitting joint and to hold the crossing point stably, on condition that the sliding diameter of the fitting joint can be expanded. It is preferable to set it as small as possible.

The braking force m influences the gradient of the enlarged diameter portion. Further, as is clear from the equation (2), the rotation speed n of the pipe manufacturing machine 1 changes depending on the feed speed V of the profile P, and this change changes the diameter expansion state. Therefore, the diameter expansion state can be controlled by adjusting the braking force m and the feed speed V of the profile P using the change in the diameter expansion state or the change in the rotation speed N of the pipe manufacturing machine 1 as a detection signal. For example, the feed rate V of the profile P can be adjusted with the braking force m kept constant, or the feed force V of the profile P can be kept constant to adjust the braking force m. In this case, the change in the diameter-expanded state is caused by the reference ruler 6 linked to the front frame 11 of the pipe making machine 1 (rotating and supporting the bent bar material in accordance with the taper angle of the diameter-expansion gradient, and changing the rotation angle). It can be detected by a contact sensor or the like arranged at a predetermined position in the reference gradient.

Therefore, in this embodiment, the pipe making machine 1 has the lateral ribs S corresponding to the lower positions of the inner peripheral surface of the tubular body SS.
b and Sb, a pair of front and rear guide frames Ga and Gb so as to be movable in the tunnel T longitudinal direction in a state where rotation is restricted in the circumferential direction by engagement with a pair of rails R and R extending in the longitudinal direction of the tunnel T. Since it is mounted so that it can be rotated forward in the longitudinal direction of the tunnel T and can be braked by engaging the flanged roller Gd of FIG. 7 in a rollable manner, each braking on the rolling surface Gc of the front guide frame Ga is performed. By pressing the wheel 41, it is possible to smoothly brake the rotational advance of the pipe manufacturing machine 1 to one side in the longitudinal direction of the tunnel T. As a result, the pipe lining machine 1 is subjected to secondary lining by a diameter-expanding lining method in which the helical tubular body PP is expanded by the feed force of the profile P and is brought closer to the inner peripheral surface of the tubular body SS composed of the segments S. Can be done using.

Moreover, the rail R laid on each lateral rib Sb of the tubular body SS is pipe-formed through a pair of front and rear guide frames Ga and Gb provided with a roller Gd with a flange for rollingly engaging the rail R. Since the machine 1 is installed, the pipe making machine 1
It is possible to smoothly perform the rotational advance to the one side in the longitudinal direction of the tunnel.

Further, each rail R projecting inward in the radial direction from each lateral rib Sb (on the curved surface) of the tubular body SS is located inside the rail R (between the rails R and R). Each horizontal rib S
The difference in height from the bent surface of b is the tip of each rail R (protruding end)
Is absorbed by the inner spacer member Q1 having substantially the same height as the above, and the difference in height between the outer side of each rail R and the bent curved surface of each lateral rib Sb is the circumferential opposite rail R side. The outer spacer member Q whose height gradually decreases as it goes to
It is designed to be absorbed by 2. in this way,
By a spacer member Q (inner spacer member Q1 and outer spacer member Q2) that fills in the height difference between the bent surface of each lateral rib Sb both inside and outside of each rail R in the circumferential direction of the tubular body SS. Since the curved surface of each lateral rib Sb of the tubular body SS is followed, the spacer is formed when the diameter of the spiral tubular body PP is increased to approach the curved surface of each lateral rib Sb of the tubular body SS. The member Q does not cause a difference in height between each rail R and the bent curved surface of each lateral rib Sb of the tubular body SS,
The generation of irregularities due to each rail R is eliminated, and the spiral tubular body PP
Can be made to follow the curved surface of each lateral rib Sb of the tubular body SS without difficulty and the diameter can be increased.

Further, when the diameter of the spiral tubular body PP is expanded by the rotation and advance of the pipe making machine 1 to one side in the longitudinal direction of the tunnel T and the spiral tubular body PP is brought close to the inner peripheral surface of the tubular body SS, the tubular body is formed. SS
Since the instantaneous hardening mortar is injected from the backfilling material injection pipe 5 attached to the pipe making machine 1 between the vicinity of the pipe making machine 1 and the spiral tubular body PP, as the pipe making machine 1 rotates forward, Instant-hardening mortar is smoothly supplied from the circumferential direction to the inner peripheral surface of the segment S through the backfill material injection pipe 5 between the adjacent portions of the shape body SS (segment S) and the spiral tubular body PP (profile P). On the other hand, the spiral tubular body PP can be securely fixed.

Further, the lateral ribs S projecting radially inward at predetermined intervals in the circumferential direction of the inner peripheral surface of each segment S.
Since the projecting ends of b are bent upward in the circumferential direction of the tubular body SS, the instantaneous hardening mortar supplied from the backfill material injection pipe 5 into the lateral ribs Sb of each segment S has the respective lateral ribs. The downward bending is suppressed by the portions (folded curved surfaces) that are bent upward from the protruding ends of Sb, and the cylindrical body S
The spiral tubular body PP can be more reliably fixed to the inner peripheral surface of S.

(Second Embodiment) Next, the second embodiment of the present invention will be described.
The embodiment will be described with reference to FIGS. 6 to 8.

In this embodiment, a pipe making machine which is driven to rotate and advance at a predetermined speed is applied.

That is, in the present embodiment, in FIG. 6 and FIG. 8, reference numeral 40 is a drive wheel installed at predetermined intervals in the circumferential direction of the front frame 11 of the pipe making machine 6, and as shown in FIG. It is adapted to be driven by a hydraulic motor 401. Reference numerals 42, ... Shown in FIGS. 6 and 7 denote driven wheels mounted at predetermined intervals in the circumferential direction of the front frame 11, and are arranged alternately with the drive wheels 40 in the circumferential direction of the front frame 11. The rest of the configuration except the drive wheels 40 is the same as that of the first embodiment, and detailed description thereof will be omitted.

Next, an example of a method of manufacturing a pipeline using the pipeline manufacturing apparatus K2 will be described.

First, in the primary lining process, the joint pieces Sa, Sa at five locations in the circumferential direction are formed on the inner peripheral surface of the tunnel T in the tunnel T.
After forming a tubular body SS made up of segments S, ... Continued also in the longitudinal direction, a pair of rails R, R are provided on the left and right lateral ribs Sb, Sb at the lower position of the inner peripheral surface of the tubular body SS. After laying, after that, spacer members Q are attached to both the inside and outside of each rail R in the circumferential direction, and each rail R and each lateral rib S of the tubular body SS.
The height difference between the curved surface b and the curved surface is filled in from the circumferential direction of the tubular body SS so that each rail R is traced to the tip of each lateral rib Sb of the tubular body SS.

In the secondary lining process, the pair of front and rear guide frames Ga, Gb with respect to each rail R has a flanged roller G.
Engage d.

Then, each of the guide frames Ga, G
The pipe making machine 6 is mounted so that it can be rotated forward with respect to b.

Then, the outer surface roller 21 and the inner surface roller 22 of the joining mechanism portion 2 are driven by a hydraulic pump, and the profile P supplied from the drum on the rear side of the tunnel is adjusted to the outer surface roller 21 and the inner surface roller 2 of the joining mechanism portion 2.
2 is sent in a spiral shape and is sent to the first joining mechanism section 2 into the female locking groove of the edge of the spiral tubular body PP already formed by the outer roller 21 and the inner roller 22 of the first joining mechanism section 2. The male locking projections on one edge of the profile P are fitted and joined to form a spiral tubular body, and the pipe making machine 6
Is driven to rotate and drive forward at a speed slower than the speed equilibrating to the formation speed of the spiral tubular body PP by driving each drive wheel 40, and the spiral tubular body is driven by the feed force of the profile of the outer surface roller 21 and the inner surface roller 22 during this rotation forward movement. The diameter of PP is expanded to be close to the inner peripheral surface of the cylindrical body SS (segment S). At this time, that is, when the diameter of the spiral tubular body PP is increased to approach the inner peripheral surface of the tubular body SS during the rotational advance of the pipe making machine 6 to one side in the longitudinal direction of the tunnel T, the tubular body is formed. Instant-hardening mortar is injected from the backfill material injection tube 5 between the SS and the vicinity of the spiral tubular body PP. Then, the lining of the spiral tubular body PP on the inner peripheral surface of the tubular body SS over the entire length of the tunnel T is completed.

The rotation speed N of the pipe making machine 6 balanced with the pipe making speed of the spiral tubular body PP is V / 2πr, where V is the feed speed of the profile P and r is the pipe making radius. Even if 6 is rotated at this speed, the diameter of the spiral tubular body PP is not expanded.

When the pipe making machine 6 is rotationally driven at a rotation speed lower than this rotation speed V / 2πr, the moving speed of the pipe making machine 6 becomes slower than the forming speed of the spiral tubular body PP, and the pipe making machine 6
The feed force of the profile P comes to act on the spiral tubular body PP that is fed out from the spiral tubular body PP, and the tearing moment (tearing moment in the unwinding direction of the spiral) due to this feed force is applied to the fitting joint portion of the spiral tubular body PP. A shearing force acts, and when this shearing force overcomes the shearing force of the fitting joint, the diameter is slid and expanded, and the cylindrical body SS comes into contact with the inner peripheral surface.

Therefore, the condition for expanding the diameter to the inner peripheral surface of the cylindrical body SS is the expression (1) for expanding the diameter of the spiral tubular body PP by the braking described in the first embodiment.
The braking force m of is replaced by the tearing moment Fr acting on the spiral tubular body PP before the diameter expansion by the feed force F of the profile P, and is given by Fr / 2πR ² > f (4).

Further, the driving rotation speed n of the pipe making machine 6 is given by the above-mentioned equation (2), and n = rN / R (5) with respect to the rotation speed N when making pipes with a radius r. Become.

In the above, the feeding force F of the profile P
If too large, the shearing force becomes large and the diameter expansion degree per unit length of the pipe becomes large, so that the diameter expansion gradient becomes steep and the fitting joint is easily opened by the shearing force. Therefore, the feed force F of the profile P is to prevent the opening breakage of the fitting joint and to hold the crossing point stably, on condition that the sliding expansion of the fitting joint can be generated. It is preferable to set it as small as possible.

Since the expanded diameter state changes depending on the feed force F and the feed speed V of the profile P and the rotation speed of the pipe making machine 6, the expanded diameter state is detected, and the feed force F, the feed speed V, and the pipe making machine are detected. The diameter expansion state can be controlled by adjusting the rotation speed n of 6.

Therefore, in this embodiment, the pipe making machine 6 has the lateral ribs S corresponding to the lower positions of the inner peripheral surface of the tubular body SS.
b and Sb, a pair of front and rear guide frames Ga and Gb so as to be movable in the tunnel T longitudinal direction in a state where rotation is restricted in the circumferential direction by engagement with a pair of rails R and R extending in the longitudinal direction of the tunnel T. Since it is mounted so as to rotate forward by its own drive by engaging the roller Gd with a flange with the roller Gd in a rollable manner, the spiral tubular body PP
It is possible to smoothly rotate and drive the pipe making machine 6 to one side in the longitudinal direction of the tunnel at a speed slower than the speed equilibrium with the formation speed of the pipe. As a result, the pipe lining machine 6 is subjected to a secondary lining by a diameter-expanding lining method in which the spiral tubular body PP is expanded in diameter by the feed force of the profile P and is brought closer to the inner peripheral surface of the tubular body SS composed of the segments S. Can be done using.

(Third Embodiment) Next, the third embodiment of the present invention will be described.
The embodiment will be described with reference to FIGS. 9 and 10.

In this modification, a pipe-making machine is used which is directly mounted on the inner peripheral surface of a cylindrical body without attaching front and rear guide frames.

That is, in the present embodiment, as shown in FIGS. 9 and 10, the pipe body manufacturing apparatus K1 'is constituted by the tubular body SS formed by each segment S and the pipe manufacturing machine 1'.
Is configured. The other configurations except the front and rear guide frames are the same as in the case of the first embodiment, and the same parts are designated by the same reference numerals and the description thereof will be omitted.

The lengths in the axial direction (longitudinal direction of the tunnel T) of the braking wheels 41 'and the driven wheels 42', which are rollers arranged alternately in the circumferential direction of the front frame 11 of the pipe making machine 1 ', are:
Both edges in the width direction of the segment S (both ends in the tunnel longitudinal direction)
Vertical ribs Sc, Sc extending in the circumferential direction of the tunnel T at
It is set to more than twice the length of the interval. That is, the axial lengths of the braking wheel 41 ′ and the driven wheel 42 ′ are set to be equal to or more than the length of two segments S in the width direction (longitudinal direction of the tunnel T).

In this case, in the pipe making machine 1 ', the cross section of the tunnel T excavated by using the excavator is a substantially circular shape, and the tubular body S made of the segment S attached to the inner peripheral surface thereof.
It is used when the cross section of S has a substantially circular shape.

Next, an example of a method for manufacturing a pipeline using the pipeline manufacturing apparatus K1 'will be described.

First, in the primary lining process, the inner peripheral surface of the tunnel T having a substantially circular cross section formed by excavating the ground in the longitudinal direction by using an excavator is divided into five in the circumferential direction. A width of the inner peripheral surface of the segment S that extends in the circumferential direction of the tunnel T is obtained by bonding the segment S along the ring shape by joining the joint pieces Sa, Sa and bonding the segment S in the longitudinal direction of the tunnel T in order. A cylindrical body SS having a substantially circular cross-section is formed by connecting the vertical ribs Sc at both ends in the direction in a rail-like manner in the circumferential direction of the tunnel.

In the secondary lining process, at least two adjacent vertical ribs Sc which are continuous in a rail shape in the above-mentioned primary lining process (vertical ribs Sc, Sc of the three segments S continuous in the longitudinal direction of the tunnel T are adjacent to each other). To the tunnel T by bringing the braking wheel 41 'and the driven wheel 42' into contact with each other.
The pipe manufacturing machine 1'is mounted so that it can be rotated forward and braked to one side in the longitudinal direction.

Then, the outer surface roller 21 and the inner surface roller 22 of the joining mechanism portion 2 are driven by a hydraulic pump, and the profile P supplied from the drum on the rear side of the tunnel T is applied to the outer surface roller 21 and the inner surface roller portion of the joining mechanism portion 2. It is sent in a spiral shape at 22 and is sent to the first joining mechanism section 2 in the female locking groove at the edge of the spiral tubular body PP already formed by the outer surface roller 21 and the inner surface roller 22 of the first joining mechanism section 2. The male locking projections at one edge of the profile P are fitted and joined, and the pipe-making machine 1 is braked to the at least two vertical ribs Sc by the helical feed force of the profile P.
1'and the driven wheel 42 'come into contact with each other to rotate forward, and a braking force is applied to each rotating wheel 41' with respect to this rotational advance to expand the diameter of the spiral tubular body PP and the inner peripheral surface of the tubular body SS. Close to. At this time, that is, during the rotational advance of the pipe making machine 1 ′ to one side in the longitudinal direction of the tunnel T, the spiral tubular body PP is
When the inner diameter of the cylindrical body SS is increased and the inner peripheral surface of the cylindrical body SS is approached, an instantaneous hardening mortar (backfilled Material) is injected. Then, the tubular body SS over the entire length of the tunnel T
The lining of the spiral tubular body PP on the inner peripheral surface is completed. In this case, since the spiral tubular body PP in the tubular body SS, which is apart from the pipe making machine 1'to some extent, is substantially fixed to the inner peripheral surface of the tubular body SS, the feed force in the spiral direction of the profile P is obtained. The pipe making machine 1'is then forwardly rotated.

Therefore, in this embodiment, the pipe manufacturing machine 1'is
A plurality of braking wheels 41 ′ and driven wheels 42 ′ that are annularly arranged around the tunnel T are formed on the inner peripheral surface of the tubular body SS.
Since at least two vertical ribs Sc, Sc extending in the longitudinal direction are mounted in contact with each other so as to be capable of rotationally advancing to one side in the longitudinal direction of the tunnel T and braking, each braking wheel 41 'and each driven wheel is attached. Vertical ribs S having 42 'adjacent to each other
It securely contacts at least two vertical ribs Sc and Sc without being sandwiched between c and Sc and is immovable, and the rotational advance of the pipe making machine 1 ′ toward one side in the tunnel T longitudinal direction is performed in the tunnel T longitudinal direction. It is possible to smoothly apply the braking to the vertical ribs Sc extending in the direction. With this, the pipe lining machine 1 is used to perform a secondary lining by a diameter-expanding lining method of expanding the diameter of the spiral tubular body PP by the feed force of the profile P and bringing it closer to the inner peripheral surface of the tubular body SS. You can

Moreover, the braking wheels 41 ′ and the driven wheels 42 ′, which come into contact with at least two adjacent vertical ribs Sc, Sc, have two longitudinal ribs Sc, S having two axial lengths.
It suffices that the size is set to be equal to or greater than the dimension between c, and the rotation and advance of the pipe manufacturing machine 1 ′ to one side in the longitudinal direction of the tunnel T can be performed with a simple configuration.

(Fourth Embodiment) Next, the fourth embodiment of the present invention will be described.
The embodiment will be described with reference to FIGS. 11 and 12.

In this modified example, a pipe-making machine which is rotationally and forwardly driven at a predetermined speed without directly attaching front and rear guide frames to the inner peripheral surface of the cylindrical body is directly mounted.

That is, in this embodiment, as shown in FIG. 11 and FIG. 12, the pipe line manufacturing device K2 is constituted by the tubular body SS formed by each segment S and the pipe making machine 6 '.
'Is configured. The other structure except the front and rear guide frames is the same as that of the second embodiment, and the same parts are designated by the same reference numerals and the description thereof will be omitted.

The lengths in the axial direction (longitudinal direction of the tunnel T) of the drive wheels 40 'and driven wheels 42', which are rollers arranged alternately in the circumferential direction of the front frame 11 of the pipe making machine 6 ', are:
Both edges in the width direction of the segment S (both ends in the tunnel longitudinal direction)
Vertical ribs Sc, Sc extending in the circumferential direction of the tunnel T at
It is set to twice the length of the interval. That is, the drive wheel 40
′ And the driven wheel 42 ′ have an axial length of the segment S
Is set to the width in the width direction (longitudinal direction of the tunnel T).

Also in this case, in the pipe-making machine 6 ', the cross section of the tunnel T excavated by using the excavator is a substantially circular shape, and the tubular body having the segment S attached to the inner peripheral surface thereof is used. It is used when the cross section of SS is almost a perfect circle.

Next, an example of a method of manufacturing a pipeline using the pipeline manufacturing apparatus K2 'will be described.

First, in the primary lining step, each segment S is joined to the inner peripheral surface of the tunnel T having a substantially circular cross section formed by excavating the ground in the longitudinal direction by using an excavator. The vertical ribs Sc at both widthwise end edges of the segment S are rail-shaped in the circumferential direction of the tunnel by joining the Sa and Sa along the ring shape and attaching the Sa and Sa together in the longitudinal direction of the tunnel T in order. To form a cylindrical body SS having a substantially circular cross section.

In the secondary lining process, at least two adjacent vertical ribs Sc that are continuous in a rail shape in the above-mentioned primary lining process (vertical ribs Sc, Sc of the three segments S continuous in the longitudinal direction of the tunnel T are formed). The driving wheel 40 'and the driven wheel 42' in contact with the driving wheel 40 '.
The pipe-making machine 6'is mounted so that it can be rotated and moved forward to one side in the longitudinal direction of the tunnel by driving the '.

Then, the outer surface roller 21 and the inner surface roller 22 of the joining mechanism portion 2 are driven by a hydraulic pump, and the profile P supplied from the drum on the rear side of the tunnel T.
The outer surface roller 21 and the inner surface roller 22 of the joining mechanism unit 2.
And the spiral tubular body P already formed by the outer surface roller 21 and the inner surface roller 22 of the first joining mechanism portion 2
A male locking convex strip at one edge of the profile P fed into the first joining mechanism portion 2 is fitted into and joined to the female locking groove at the P edge to form the spiral tubular body PP. , The tube making machine 6 is driven to rotate and advance at a speed slower than the speed equilibrating to the formation speed of the spiral tubular body PP by the drive of each drive wheel 40 ′, and during this rotational advance, the profile of the outer surface roller 21 and the inner surface roller 22 is changed. The diameter of the spiral tubular body PP is expanded by the feeding force so as to be close to the inner peripheral surface of the tubular body SS (segment S). At this time, in other words, when the diameter of the spiral tubular body PP is increased to approach the inner peripheral surface of the tubular body SS during the rotational advance of the pipe making machine 6 ′ to one side in the longitudinal direction of the tunnel T, the tubular shape of the tubular body SS is increased. Instant-hardening mortar is injected from the backfill material injection tube 5 between the body SS and the vicinity of the spiral tubular body PP. Then, the lining of the spiral tubular body PP on the inner peripheral surface of the tubular body SS over the entire length of the tunnel T is completed.

Therefore, in this embodiment, the pipe making machine 6'is
A plurality of driving wheels 40 'and driven wheels 42' arranged annularly around the tunnel T are formed on the inner peripheral surface of the tubular body SS.
Since at least two vertical ribs Sc, Sc extending in the longitudinal direction are mounted in contact with each other so that they can be rotated and advanced to one side in the longitudinal direction of the tunnel T by driving thereof, each drive wheel 40 'and each slave wheel 40'. The moving wheel 42 'is not pinched between the adjacent vertical ribs Sc, Sc, and becomes immovable,
At least two longitudinal ribs Sc, Sc are securely contacted with each other, and each longitudinal rib Sc extending in the longitudinal direction of the tunnel T is slower than the speed equilibrating with the forming rate of the spiral tubular body PP on one side of the longitudinal direction of the tunnel T. This makes it possible to smoothly drive the pipe manufacturing machine 6 ′ in a rotationally forward direction. As a result, the pipe lining machine 6 performs the secondary lining by the diameter-expanding lining method in which the diameter of the spiral tubular body PP is expanded by the feed force of the profile P and brought close to the inner peripheral surface of the tubular body SS including the segments S.
It can be performed by using '.

In addition, each drive wheel 40 'and each driven wheel 42' that contact at least two adjacent vertical ribs Sc, Sc have two longitudinal ribs Sc, S whose axial length is two.
It suffices that the size is set to be equal to or larger than the dimension between c, and the rotation and advance of the pipe making machine 6 ′ to one side in the longitudinal direction of the tunnel T can be performed with a simple configuration.

(Modifications) The present invention is not limited to the above-described embodiments, but includes various modifications. For example, in the third and fourth embodiments described above, the axial length of each braking wheel 41 '(each driving wheel 40') and each driven wheel 42 'is 2 times the length between the vertical ribs Sc, Sc.
The length in the axial direction of each braking wheel (each driving wheel) and each driven wheel may be set to be twice or more the length between the vertical ribs. In this case, the length in the axial direction of the driven roller, which is supported at predetermined intervals in the circumferential direction of the rear frame, is set to be at least twice the length between the vertical ribs, and two adjacent vertical ribs are provided. Of course, the rolling may be performed in a contact state.

Further, in the third and fourth embodiments, the vertical ribs Sc are provided only at the widthwise both edges of each segment S, but a single or a plurality of vertical ribs are provided between the widthwise both edges of each segment. It may be provided. In this case,
It is not necessary to set the axial length of each braking wheel (each driving wheel) and each driven wheel to the length in the width direction of three consecutive segments in the longitudinal direction of the tunnel, and each braking wheel (each driving wheel)
Also, the axial length of each driven wheel may be set to be at least twice as long as the length between the short vertical ribs provided singly or plurally between the widthwise both edges of each segment, and the length should be short. Is possible.

[0107]

As described above, according to the method for manufacturing a pipeline according to the first and second aspects of the present invention, the inner peripheral surface of the segment having irregularities is different from the rail extending in the longitudinal direction of the tunnel. The rotation restricting member is movably supported to one side in the longitudinal direction of the tunnel in a state where the rotation is restricted by the engagement, and the pipe making machine can be rotated forward and braking to the one side in the longitudinal direction of the tunnel with respect to the rotation restricting member. , Or rotational forward drive, the braking of the rotational advance of the pipe making machine or the rotational forward drive of the pipe making machine at a speed slower than the speed equilibrating with the forming speed of the spiral tubular body can be performed smoothly. The secondary lining by the diameter-expanding lining method in which the diameter of the spiral tubular body is expanded by the feeding force of the belt-shaped member and brought close to the inner peripheral surface of the tunnel can be performed using the pipe making machine. Moreover, since the pipe manufacturing machine is mounted on the rotation restricting member that engages with the rail on the inner peripheral surface of the tubular body, the pipe manufacturing machine smoothly rotates forward in the longitudinal direction of the tunnel. be able to. Furthermore, by attaching a spacer member that fills the height difference between the protruding rail and the inner peripheral surface of the tubular body from the circumferential direction of the tubular body, the rail is copied to the inner peripheral surface of the tubular body, thereby making a spiral. When the diameter of the tubular body is expanded, unevenness due to the rail can be eliminated, and the spiral tubular body can be made to follow the inner peripheral surface of the tubular body without difficulty and be expanded in diameter.

Further, according to the pipe manufacturing method of the third and fourth aspects of the present invention, the vertical ribs on the inner peripheral surface of the segment are respectively formed on the inner peripheral surface of the tunnel having a substantially circular shape. A tubular body is formed so as to be continuous in the direction of a rail, and at least two vertical ribs adjacent to each other form a pipe-making machine, with a plurality of rollers around the tubular machine, rotating forward and braking to one side in the tunnel longitudinal direction. By mounting in a contact state so that it can be driven or rotated forward, it is possible to prevent immobilization of each roller between adjacent vertical ribs and ensure that each roller contacts the vertical ribs, and Rotational advance and braking of the pipe making machine to one side, or rotational advancement drive at a speed slower than the speed equilibrating with the formation speed of the spiral tubular body can be smoothly performed, and the spiral tubular body is expanded by the feeding force of the belt-shaped member. Let me in the tunnel Secondary lining according expanded lining method will in proximity to the peripheral surface can be performed using a pipe manufacturing machine. In addition, the axial length of each roller contacting at least two adjacent vertical ribs may be set to be equal to or greater than the dimension between the two vertical ribs, and thus the pipe making machine on the one side in the longitudinal direction of the tunnel can be used. The rotary advance can be performed with a simple structure.

Further, according to the method for manufacturing a pipe line according to the fifth aspect of the present invention, when the diameter of the spiral tubular body is increased to approach the inner peripheral surface of the tunnel, the tubular body and the spiral tubular body are provided. By providing a hose for backfilling material filling in the pipe manufacturing machine between the proximity part of the pipe making machine and the vicinity of the tubular body and the spiral tubular body as the pipe making machine rotates forward. The backfill material can be smoothly supplied from the circumferential direction, and the spiral tubular body can be reliably fixed to the inner peripheral surface of the segment.

In particular, according to the method for producing a pipe line according to the sixth aspect of the present invention, the projecting ends of the lateral ribs projecting at predetermined intervals in the circumferential direction on the inner peripheral surface of the segment are provided around the cylindrical body. By bending upward in the direction, it is possible to prevent the back-filling material supplied in each horizontal rib from falling downward, and to more securely fix the spiral tubular body to the inner peripheral surface of the tubular body. it can.

[Brief description of drawings]

FIG. 1 is a front view of a pipeline manufacturing apparatus used in a pipeline manufacturing method according to a first embodiment of the present invention.

FIG. 2 is a side view of the pipeline manufacturing apparatus.

FIG. 3 is an enlarged side view of the pipeline manufacturing apparatus.

FIG. 4 is an enlarged explanatory view showing a state in which the roller with a collar is rollably engaged with the joint piece of the segment.

FIG. 5 is an explanatory view explaining a lining construction state of the spiral tubular body by the pipeline manufacturing apparatus.

FIG. 6 is a front view of a pipeline manufacturing apparatus used in a pipeline manufacturing method according to a second embodiment of the present invention.

FIG. 7 is a side view of the pipeline manufacturing apparatus.

FIG. 8 is a sectional view of a drive wheel of the same.

FIG. 9 is a front view of a pipeline manufacturing apparatus used in a pipeline manufacturing method according to a third embodiment of the present invention.

FIG. 10 is a side view of the pipeline manufacturing apparatus.

FIG. 11 is a front view of a pipeline manufacturing apparatus used in a pipeline manufacturing method according to a fourth embodiment of the present invention.

FIG. 12 is a side view of the pipeline manufacturing apparatus.

FIG. 13 (a) is a drawing showing a known band-shaped member used in a lining construction method. (B) is a perspective view showing a joined state of the belt-shaped members.

FIG. 14 is a side view of a conventional pipe manufacturing machine.

FIG. 15 is an explanatory diagram showing a process of forming a tubular body of a strip-shaped member by the pipe manufacturing machine.

FIG. 16 is an explanatory diagram which similarly illustrates a lining construction method for an existing pipe.

[Explanation of symbols]

1,1 ', 6,6' Pipe making machine Ga, Gb guide frame (rotation restriction member) 41, 41 'Braking wheels (rollers) 42, 42 'Driven wheel (roller) 40, 40 'Drive wheel (roller) 5 Backfill material injection pipe (hose) P profile (strip-shaped member) PP spiral tubular body Q spacer member R rail S segment Sa joint piece (rib) Sb horizontal rib Sc vertical rib SS tubular T tunnel

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E21D 11/40 E21D 11/40 Z F16L 1/024 B29L 23:00 // B29L 23:00 F16L 1/02 QZ F term (reference) 2D055 AA04 BB01 CA03 GB01 KB10 KC06 LA02 LA16 2D063 BA19 4F211 AD05 SA05 SC03 SD06 SG06 SJ11 SP12 SP47

Claims (6)

[Claims] 1. A segment which is divided in the circumferential direction is attached to an inner circumferential surface of a tunnel formed by excavating the ground in the longitudinal direction by using an excavator along a ring shape and the tunnel. By forming a tubular body on the inner peripheral surface of the segment by also sticking it in the longitudinal direction of the, the rail extending in the longitudinal direction of the tunnel is attached to the inner peripheral surface of the tubular body. While projecting inward in the direction, the height difference between the rail and the inner peripheral surface of the tubular body is adjusted so that the rail thus projected follows the inner peripheral surface of the tubular body. A primary lining process in which a spacer member to be filled in from the circumferential direction is attached, and a ring-shaped rotation regulating member that is movable to one side in the tunnel longitudinal direction while being rotationally regulated with respect to the rail laid in the primary lining process. The rotation restricting member A pipe-making machine that forms a spiral tubular body by spirally winding in the longitudinal direction of a tunnel while joining continuous strip-shaped members between adjacent edge portions is It is mounted so that it can be rotated forward and braked, and the rotational advance of this pipe making machine to one side in the longitudinal direction of the tunnel is braked to expand the diameter of the spiral tubular body by the feeding force of the belt-shaped member, thereby A method of manufacturing a pipeline, which includes a secondary lining step of bringing the surface closer to the peripheral surface. 2. A segment which is divided in the circumferential direction is attached to the inner peripheral surface of the tunnel formed by excavating the ground in the longitudinal direction by using an excavator along a ring shape and the tunnel. By forming a tubular body on the inner peripheral surface of the segment by also sticking it in the longitudinal direction of the, the rail extending in the longitudinal direction of the tunnel is attached to the inner peripheral surface of the tubular body. While projecting inward in the direction, the height difference between the rail and the inner peripheral surface of the tubular body is adjusted so that the rail thus projected follows the inner peripheral surface of the tubular body. A primary lining process in which a spacer member to be filled in from the circumferential direction is attached, and a ring-shaped rotation regulating member that is movable to one side in the tunnel longitudinal direction while being rotationally regulated with respect to the rail laid in the primary lining process. The rotation restricting member Forming a spiral tubular body by forming a spiral tubular body by spirally winding in a longitudinal direction of a tunnel while joining continuously fed long strip-shaped members between adjacent edge portions. It is mounted so that it will rotate and drive forward to one side in the tunnel longitudinal direction at a speed slower than the speed that equilibrates to the speed,
A secondary lining step of expanding the diameter of the spiral tubular body by the feed force of the belt-shaped member to bring the spiral tubular body closer to the inner peripheral surface of the tunnel during the forward rotation of the pipe making machine toward one side in the tunnel longitudinal direction. A method for manufacturing a pipeline, which is characterized in that 3. A segment, which is divided in the circumferential direction, is arranged in a ring shape on the inner circumferential surface of a tunnel formed in a substantially circular shape by excavating the ground in the longitudinal direction by using an excavator. And the tube in the longitudinal direction of the tunnel in order to form a cylindrical body so that the vertical ribs extending in the circumferential direction of the tunnel are connected to the inner circumferential surface of the segment in a rail shape in the circumferential direction of the tunnel. A primary lining step to be formed and at least two vertical ribs adjacent to each other that are continuous in a rail shape in the above-mentioned primary lining step, between the edge portions of the continuous strip-shaped members that are continuously fed. A pipe-making machine that is spirally wound in the longitudinal direction of the tunnel while being joined to form a spiral tubular body is rotated forward and braked to one side in the longitudinal direction of the tunnel by a plurality of rollers arranged annularly around the machine. It is mounted in contact with each other so that the diameter of the spiral tubular body is expanded by the feeding force of the belt-shaped member during rotation forward of the pipe making machine to one side in the longitudinal direction of the tunnel so that the spiral tubular body is brought close to the inner peripheral surface of the tunnel. And a secondary lining step. 4. A circumferentially divided segment is formed along a ring shape on the inner peripheral surface of a tunnel formed in a substantially circular shape by excavating the ground in the longitudinal direction by using an excavator. And the tube in the longitudinal direction of the tunnel in order to form a cylindrical body so that the vertical ribs extending in the circumferential direction of the tunnel are connected to the inner circumferential surface of the segment in a rail shape in the circumferential direction of the tunnel. A primary lining step to be formed and at least two vertical ribs adjacent to each other that are continuous in a rail shape in the above-mentioned primary lining step, between the edge portions of the continuous strip-shaped members that are continuously fed. A pipe-making machine that spirally winds in the longitudinal direction of the tunnel while joining to form a spiral tubular body is formed by a plurality of rollers arranged annularly around the pipe making machine at a speed equal to the formation speed of the spiral tubular body. Also It is mounted in a contact state so that it is driven to rotate and advance to one side in the longitudinal direction of the tunnel at a high speed, and the diameter of the spiral tubular body is expanded by the feeding force of the belt-shaped member during the rotational advance to one side in the longitudinal direction of the tunnel of this pipe making machine. And a secondary lining step of bringing the inner peripheral surface of the tunnel closer to the inner peripheral surface of the tunnel. 5. The method for manufacturing a pipeline according to claim 1, wherein the pipe making machine is provided with a hose for injecting a backfill material, and When expanding the diameter of the spiral tubular body toward the inner peripheral surface of the tunnel during the rotation forward to the side, the hose is provided between the tubular tubular body made of the segment and the spiral tubular body made of the strip-shaped member. A method of manufacturing a pipeline, further comprising the step of filling a backfill material via the. 6. The method for manufacturing a conduit according to claim 1, wherein the inner peripheral surface of the segment has a length of the tunnel at predetermined intervals in the circumferential direction of the inner peripheral surface. A plurality of lateral ribs extending inwardly are provided so as to project inward in the radial direction of the tubular body, and the projecting ends of each of the lateral ribs are bent upward in the circumferential direction of the tubular body. Method for manufacturing a pipeline.