JP2013240953A - Method of collecting piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly collect an excess portion of hydraulic piping or the like associated with pipe making of a regeneration pipe by a pipe making device, without loss of the piping.SOLUTION: A swivel truck 5 is connected to a pipe making device 1 arranged in an existing pipe K and simultaneously, a load sensor 6 is provided in the swivel truck 5 and a traction wire 8 introduced from the ground is connected to the load sensor 6. A hydraulic piping Ph for connecting a hydraulic source P on the ground to the swivel truck 5 is bound together with the traction wire 8 by a binding material 9 and after that, an excess hydraulic piping Ph generated associated with the pipe making of a regeneration pipe S by the pipe making device 1 is collected by pulling the traction wire 8 when a tensile load detected by the load sensor 6 is less than a set tensile load.

Description

  The present invention supplies hydraulic piping and mortar for supplying pressure oil to a pipe making apparatus when producing rehabilitation pipes for rehabilitating existing pipes such as aging sewer pipes, water pipes, agricultural water pipes, gas pipes, etc. The present invention relates to a method of taking piping such as mortar piping.

  Conventionally, in order to rehabilitate an existing pipe that has deteriorated, a band-shaped member having joints formed on both side edges is drawn into the existing pipe, and spirally wound to join the adjacent band-shaped members together. A rehabilitating pipe is produced, and a belt-shaped member is newly supplied to the rehabilitated pipe thus produced to additionally form the rehabilitating pipe in the axial direction of the existing pipe. For example, as described in Patent Document 1, a transport drum in which a belt-shaped member is wound in a hollow cylindrical shape is installed on the ground, and a pipe-making device is disposed in an existing pipe, and the belt-shaped member drawn from the transport drum is Introduced into the pipe making device in the existing pipe, rotated the pipe making device around the axis of the existing pipe, joined the joints of the adjacent strip members, made the renovated pipe, A new strip member is supplied to form a rehabilitation pipe in the axial direction of the existing pipe.

  In this case, the hydraulic pump is driven by a hydraulic power unit installed on the ground, and the pressure oil discharged from the hydraulic pump is supplied to the hydraulic motor of the pipe making apparatus through the manhole and the existing pipe through the hydraulic pipe. Is driving.

  In addition, a rehabilitation pipe is produced by a pipe making apparatus, and a backfilling material such as mortar is simultaneously injected into the space between the produced rehabilitation pipe and an existing pipe (see, for example, Patent Document 2). ).

  In this case, the mortar pump is driven in the mortar plant installed on the ground, and the mortar discharged from the mortar pump is supplied to the kneading apparatus disposed in the existing pipe through the manhole and the existing pipe through the mortar pipe, It is driven so that mortar is injected between the rehabilitation pipe and the existing pipe.

  In the kneading apparatus, as with the hydraulic motor of the pipe making apparatus, the pressure oil discharged from the hydraulic pump driven by the hydraulic power unit installed on the ground passes through the manhole and existing pipe to the hydraulic motor via the hydraulic pipe. It is driven by supplying.

JP-A-9-32968 JP 2005-315401 A

  By the way, when the pipe making apparatus is driven to produce the rehabilitated pipe, the pipe making apparatus moves toward the reaching manhole, and an extra length is generated in the hydraulic piping connected to the pipe making apparatus. For this reason, it is necessary to secure the movement of the pipe making apparatus by taking the surplus hydraulic pipe generated along with the pipe making of the rehabilitation pipe to the reaching manhole. Such pulling of the hydraulic piping has been performed manually by an operator. However, when gravity is large, it is difficult to perform the pulling operation by human power. For this reason, if the hydraulic piping is heavy, a winch will be used. However, if the hydraulic piping is pulled directly using the winch, an excessive tensile load that was not manually applied to the hydraulic piping will be applied. If an excessive tensile load is applied, the hydraulic piping may be lost and the joint may drop off.

  Further, when mortar is injected simultaneously with the production of the rehabilitation pipe using the kneader, the mortar pipe may be similarly lost.

  The present invention has been made in view of such problems, and a pipe take-up method that can reliably take over without losing surplus parts such as hydraulic pipes associated with the production of renovated pipes by a pipe making apparatus. It is to provide.

  The present invention draws a belt-like member with joints formed on both side edges into an existing pipe, spirally winds them together, joins the joints of adjacent belt-like members together, and produces a renovated pipe. In a renovated pipe manufacturing apparatus that newly supplies a strip-shaped member to the renovated pipe and adds the regenerated pipe in the axial direction of the existing pipe, a load sensor is provided on the swivel carriage connected to the pipe manufacturing apparatus. The pulling wire is connected to the load sensor, while the hydraulic piping connecting the ground hydraulic power source and the swivel carriage is bundled together with the pulling wire through the binding material, and then the tensile load detected by the load sensor is set. When the load is less than the load, the pulling wire is pulled, and excess hydraulic piping generated along with the production of the rehabilitation pipe by the pipe making apparatus is taken up.

  According to this invention, while providing a load sensor in the swivel cart connected with the pipe making apparatus, a pulling wire is connected with a load sensor. Next, after the hydraulic piping connecting the hydraulic source on the ground and the swivel carriage is bundled together with the pulling wire through the binding material, the pulling wire is pulled, and surplus generated due to the production of the rehabilitation pipe by the pipe making device. Take the hydraulic piping. At this time, the tensile load acting on the pulling wire by pulling the pulling wire is detected by the load sensor. When the detected tensile load is less than the set tensile load of the corresponding hydraulic piping, the pulling wire is pulled. While pulling the hydraulic pipe, the pulling of the pulling wire is interrupted when the set tensile load is reached.

  As a result, when surplus hydraulic piping generated due to the production of rehabilitation pipes by the pipe making device is taken over, excessive pulling load is not applied to the hydraulic piping, and loss or dropping of the hydraulic piping is surely prevented. be able to.

  In the present invention, a rehabilitating pipe producing apparatus for injecting mortar into a space between an existing pipe and a rehabilitating pipe together with rehabilitating pipe producing, a swivel carriage and a kneading device are connected to the pipe making apparatus in order, and a load sensor is connected to the swivel carriage. And connecting the traction wire to the load sensor, while connecting the ground hydraulic source to the swivel cart and the kneading device, and the mortar piping connecting the ground mortar plant and the kneading device to the pulling wire In addition, when the tensile load detected by the load sensor is less than the set tensile load after binding through the binding material, the excess wire generated by pulling the puller wire and making the rehabilitated pipe by the pipe making device It is preferable to take over the hydraulic piping and excess mortar piping. As a result, even when mortar is injected into the space between the existing pipe and the rehabilitation pipe together with the rehabilitation pipe production, the ground hydraulic source, the swivel carriage, the hydraulic piping connecting the kneading device and the ground mortar plant are kneaded. If the mortar pipe connecting the equipment is bundled together with the pulling wire through the binding material, and the pulling wire is pulled, the excess hydraulic pipe and surplus mortar pipe generated when the renovated pipe is made by the pipe making device Can be taken over. At this time, the tensile load acting on the pulling wire by pulling the pulling wire is detected by the load sensor, and the detected tensile load is set to the set tensile load, for example, the set tensile load of the corresponding hydraulic pipe, or When the set tensile load of the corresponding mortar piping is less than the smaller tensile load, the pulling wire is pulled to draw the hydraulic piping and mortar piping, while when the set tensile load is reached, the pulling wire Suspend towing. For this reason, an excessive tensile load is not applied to the hydraulic pipe and the mortar pipe, and the hydraulic pipe and the mortar pipe can be reliably prevented from being broken or dropped.

  In the present invention, it is preferable that the pulling wire is wound up by a winch provided on the ground. Thereby, it can respond easily by providing a winch on the ground.

  In the present invention, it is preferable that the pulling wire is pulled by a crane operation of a truck with a clay. Thereby, a pulling wire can be taken up using a truck with a clay. Here, examples of crane operations include lifting a hook by a winch and raising and lowering a boom.

  ADVANTAGE OF THE INVENTION According to this invention, it can take over reliably, without losing surplus parts, such as hydraulic piping accompanying the pipe production of the renovated pipe by a pipe production apparatus.

It is the schematic explaining one Embodiment of the taking-in method of piping of this invention. It is a flowchart explaining the taking-in method of piping of FIG. It is a diagram which shows the relationship between the amount of pulling wires and the sensor detection load in the piping drawing method of this invention. It is the schematic which shows the modification of one Embodiment of the taking-in method of piping of this invention. It is the schematic which shows other embodiment of the taking-in method of piping of this invention. It is a perspective view explaining the outline of the pipe making apparatus which pipes a rehabilitation pipe.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a pipe take-up method according to the present invention.

  This pipe take-up method has a configuration for producing the rehabilitated pipe S, specifically, the pipe-making device 1 disposed in the existing pipe K, arranged adjacent to the pipe-making device 1, and a rotary joint. In addition to the mounted swivel cart 5, the hydraulic power unit P installed on the ground facing the reaching manhole M2, the drum D installed on the ground facing the starting manhole M1, and provided on the swivel cart 5 with the belt member 100 wound around. This is performed using the winch 7 installed on the ground facing the load sensor 6 and the reaching manhole M2.

  Here, as shown in FIG. 6, the pipe making apparatus 1 includes a forming frame 2 that guides the belt-like member 100 in a spiral shape, a plurality of guide rollers 3 that are rotatably provided on the forming frame 2, and a forming frame. 2 and a joining mechanism 4 that joins adjacent spiral belt-like members 100 to each other, and a detailed description thereof will be omitted.

  The swivel carriage 5 is equipped with a rotary joint (not shown) so that pressure oil can be supplied to the hydraulic motor of the joining mechanism 4 regardless of the circular movement of the pipe making device 1. The joint (rotating part) and the hydraulic motor are connected by piping. In this case, the swivel carriage 5 and the joining mechanism 4 of the pipe making apparatus 1 are connected via a connecting member 51 having a universal joint and an expansion / contraction mechanism.

  Further, although not shown in detail, the hydraulic power unit P drives a hydraulic pump via an electric motor, and the pressure oil discharged from the hydraulic pump is supplied to the reaching manhole M2 and the existing pipe K via the hydraulic pipe Ph. After that, the swivel carriage 5 is supplied to the rotary joint (fixed portion). Therefore, the pressure oil discharged from the hydraulic power unit P is supplied to the hydraulic motor of the joining mechanism 4 through the rotary joint of the swivel carriage 5.

  On the other hand, the pulling wire 8 drawn out from the winch 7 has a loop formed at the tip thereof, and is connected to a load sensor 6 provided in the swivel cart 5 via a reaching manhole M2 and an existing pipe K via a NAS.

  Furthermore, the hydraulic pipe Ph is bundled together with the pulling wire 8 through a plurality of binding materials 9, for example, a binding band or a binding string provided with a hook-and-loop fastener at appropriate intervals.

  Next, the pipe making procedure of the renovated pipe S for rehabilitating the existing pipe K using the pipe making apparatus 1 configured as described above will be described.

  First, the manhole on the upstream side in the rehabilitation region of the installation pipe K is set as the start manhole M1, the manhole on the downstream side is set as the arrival manhole M2, and the rehabilitation pipe S is manufactured from the start manhole M1 of the existing pipe K toward the arrival manhole M2. And

  When the rehabilitated pipe S is manufactured, a drum D (with a rotating table) around which the belt-like member 100 is wound, a pipe manufacturing apparatus 1, a hydraulic power unit P, and the like are prepared. As shown in FIG. On the other hand, the winch 7 and the hydraulic power unit P are installed on the ground on the reaching manhole M2 side. Further, the pipe making apparatus 1 is carried into the upstream end portion in the existing pipe K through the starting manhole M1 and assembled. At this time, the swivel carriage 5 is also carried into the upstream end portion in the existing pipe K, connected to the joining mechanism 4 of the pipe making apparatus 1 via the connecting member 51, and joined to the rotary joint mounted on the swivel carriage 5. The hydraulic motor of the mechanism 4 is connected via a hydraulic pipe Ph. Further, a load sensor 6 is attached to the swivel cart 5.

  On the other hand, the hydraulic pipe Ph connected to the hydraulic power unit P is introduced into the existing pipe K through the reaching manhole M <b> 2 and connected to the rotary joint of the swivel cart 5. Further, the pulling wire 8 drawn out from the winch 7 is introduced into the existing pipe K through the reaching manhole M2, and the tip loop portion thereof is connected to the load sensor 6 provided in the swivel cart 5 via the NAS. Then, the hydraulic pipe Ph is bundled together with the pulling wire 8 through the binding material 9 at an appropriate interval so that the hydraulic pipe Ph is also pulled by the pulling of the pulling wire 8.

  Note that a guide roller 10 around which the pulling wire 8 is wound is disposed at the bottom of the reaching manhole M2 and the end on the ground side, and the hydraulic pipe Ph interferes with the connection pipe port between the manhole M and the existing pipe K and the manhole port. Prevent damage.

  When such a preparatory work is completed, the belt-like member 100 is sequentially pulled out from the inner peripheral side of the drum D arranged on the ground, drawn into the existing pipe K through the starting manhole M1, and guided to the joining mechanism 4 of the pipe making apparatus 1. Then, it is fed out of the guide roller 3 provided on the molding frame 2 through the joining mechanism 4. Next, in a state in which the belt-like member 100 fed to the outside of the guide roller 3 is fed between the inner peripheral surface of the existing pipe K, the pipe making apparatus 1 is rotated around the axis of the existing pipe K, and the belt-like member 100 is moved. After winding around the molding frame 2 several times, the hydraulic motor of the joining mechanism 4 in the pipe making apparatus 1 is driven to rotate. As a result, the joining mechanism 4 sandwiches and feeds the belt-like member 100, and relatively moves (revolves) along the belt-like member 100 in the direction opposite to the feed direction, and the pipe making apparatus 1 has the axis of the existing pipe K. Revolve around. Then, the belt-like member 100 sent in a spiral shape by driving of the joining mechanism 4 joins the joint portion of the adjacent belt-like member 100 to the adjacent belt-like member 100, thereby producing the rehabilitation pipe S (see FIG. 6).

  As described above, the pipe making apparatus 1 moves (revolves) along the inner peripheral surface of the existing pipe K when the rehabilitated pipe S is produced, and the axial direction of the existing pipe K toward the reaching manhole M2. (See step S1 in FIG. 2). When the pipe making apparatus 1 moves toward the reaching manhole M2, by pushing the swivel carriage 5 in the same direction via the connecting member 51, the swivel carriage 5 also moves simultaneously.

  By the way, when the pipe making apparatus 1 is driven to produce the rehabilitated pipe S, the pipe making apparatus 1 moves toward the reaching manhole M2, so that an excess hydraulic pipe Ph is generated. For this reason, the operator drives the winch 7 and winds the pulling wire 8 on the reaching manhole M2 side. As a result, the hydraulic pipe Ph integrally bound through the pulling wire 8 and the binding material 9 can be pulled up to the ground through the existing pipe K and the reaching manhole M2 (see step S2 in FIG. 2).

  Here, the tensile load of the pulled pulling wire 8 is detected by the load sensor 6, and the detected value is displayed on the load display portion 6 </ b> A installed adjacent to the winch 7. That is, when the winding of the pulling wire 8 is started by driving the winch 7, the hydraulic pipe Ph is first taken up so as to absorb the slack of the excess hydraulic pipe Ph, so that the tensile load does not increase and remains constant. Then, when the slack of the hydraulic pipe Ph is absorbed and the tension state is reached, the winch 7 tries to pull the swivel cart 5 via the pulling wire 8 and the load sensor 6, and the tensile load increases (see FIG. 3). . In this case, the tensile load of the pulling wire 8 does not act as it is on the hydraulic pipe Ph that is bound via the pulling wire 8 and the binding material 9, and even if a part of the pulling load of the pulling wire 8 acts. It has been confirmed that it can withstand a tensile load A of 200 to 500 N depending on the diameter and type. Therefore, the tensile load detected by the load sensor 6 is confirmed on the load display section 6A, and it is determined whether or not the tensile load A has been set to the set hydraulic load Ph (see step S3 in FIG. 2). If it is less than the tensile load A, the winch 7 is driven to continue taking the hydraulic pipe Ph (see step S3 in FIG. 2).

  On the other hand, when the set tensile load A is reached, the driving of the winch 7 is stopped (see step S4 in FIG. 2), or the winding speed is reduced to reduce the tensile load.

  During this time, the pipe making work of the renovated pipe S by the pipe making apparatus 1 is continued, and if excess hydraulic piping Ph is generated by moving the pipe making apparatus 1 toward the reaching manhole M2, the tension acting on the load sensor 6 is applied. Since the load decreases, it is determined whether or not the set tensile load B has decreased to, for example, 0 to 30 N (see step S5 in FIG. 2). As long as the pipe making operation is not completed (see step 1 in FIG. 2), the winch 7 is driven to continue taking over the hydraulic piping Ph (see step S2 in FIG. 2).

  If the tensile load B does not decrease (see step S5 in FIG. 2), the drive of the winch 7 is kept stopped (see step S4 in FIG. 2), and the tensile load acting on the load sensor 6 is reduced. Wait until it falls below B.

  Hereinafter, by repeatedly performing such operations, the hydraulic pipe Ph is repeatedly pulled up to the ground via the reaching manhole M2. When the pipe making work is completed, for example, when the pipe making apparatus 1 reaches the reaching manhole M2, the driving of the winch 7, that is, the take-up work of the hydraulic pipe Ph is finished (see step S1 in FIG. 2).

  As a result, by pulling the pulling wire 8, the hydraulic piping Ph that is united with the pulling wire 8 is taken up, so that an excessive tensile load does not act on the hydraulic piping Ph, and the hydraulic pipe Ph is missing or has a joint. Can be reliably prevented.

  In the above-described embodiment, the case where the winch 7 is installed on the reaching manhole M2 side and the hydraulic pipe Ph is pulled up to the ground by winding the pulling wire 8 has been described. However, the winch 7 is attached to the invert of the reaching manhole M2. In addition to temporarily installing the tow wire 8 and temporarily placing the hydraulic pipe Ph in the reaching manhole M2 and its surroundings, as shown in FIG. A crane hook may be locked to the wire 8 and the winch may be driven and lifted, or the boom may be raised and pulled up to take out the hydraulic piping Ph.

  By the way, in embodiment mentioned above, when manufacturing the renovated pipe S by the pipe manufacturing apparatus 1, the case where the hydraulic piping Ph which supplies pressure oil to the hydraulic motor of the pipe manufacturing apparatus 1 was taken over was demonstrated. It can be applied to the mortar pipe Pm in the case where the backfilling material such as mortar is simultaneously injected into the space between the renovated pipe S and the existing pipe K together with the S pipe making.

  That is, as shown in FIG. 5, the mortar plant T is installed on the reaching manhole M2 side, the kneading device Mi is installed in the existing pipe K, and the mortar pipe Pm is connected between the mortar plant T and the hydraulic motor of the kneading device Mi. The kneading apparatus Mi and the pipe making apparatus 1 are connected via the mortar pipe Pm, and the rehabilitation pipe S is formed by the pipe making apparatus 1 and the mortar is provided from the kneading apparatus Mi to the rehabilitation pipe S. When injecting into the space with the pipe K, the pulling wire 8 integrally bound with the mortar pipe Pm and the hydraulic pipe Ph is pulled through the winch 7, and the surplus mortar pipe Pm and the surplus hydraulic pipe Ph are pulled up to the ground. You can also.

  In this case, the kneading device Mi is connected to the swivel carriage 5 via the connecting member 52.

  Although not shown in detail, when a mortar pump is used for injecting the mortar and a hydraulic motor is used as a driving source thereof, the binding material 9 together with the other hydraulic pipes Ph and mortar pipes Pm is also attached to this hydraulic pipe. What is necessary is just to bind with the pulling wire 8 via.

DESCRIPTION OF SYMBOLS 1 Pipe making apparatus 4 Joining mechanism 5 Swivel cart 6 Load sensor 7 Winch 8 Pulling wire 9 Bundling material 10 Guide roller 100 Strip member P Hydraulic power unit Mi Kneading device T Mortar plant Ph Hydraulic piping Pm Mortar piping

Claims (4)

  The belt-shaped member with joints formed on both side edges is drawn into the existing pipe, spirally wound to join the joints of the adjacent belt-shaped members together to form a rehabilitation pipe, and the rehabilitated pipe In a rehabilitating pipe manufacturing device that newly supplies a strip-shaped member to the tube and additionally forms a rehabilitating tube in the axial direction of the existing tube, a load sensor is provided on the swivel carriage connected to the pipe manufacturing device, and the load sensor When the pulling wire is connected and the hydraulic piping connecting the ground hydraulic power source and the swivel carriage is bound together with the pulling wire through the binding material, the tensile load detected by the load sensor is less than the set tensile load. A pipe take-up method characterized in that a pulling wire is pulled to take out surplus hydraulic pipes generated along with the production of a rehabilitated pipe by a pipe making apparatus.   2. The pipe take-up method according to claim 1, wherein a rehabilitating pipe producing apparatus for injecting mortar into a space between an existing pipe and a rehabilitating pipe together with a rehabilitating pipe producing process, wherein a swivel carriage and a kneading device are sequentially installed in the pipe making apparatus. And connecting a pulling wire to the load sensor, while connecting a pulling wire to the load sensor, and connecting a ground hydraulic source to the swivel carriage and the kneading device, respectively, and a ground mortar plant and a kneading device After the mortar pipe that connects the mortar pipe and the pulling wire are bound through the binding material, when the tensile load detected by the load sensor is less than the set tensile load, the pulling wire is pulled to produce a rehabilitation pipe by the pipe making device. A method for taking a pipe, characterized in that an extra hydraulic pipe and an extra mortar pipe generated along with the pipe are taken up.   3. The pipe take-up method according to claim 1, wherein the pulling wire is wound up by a winch provided on the ground.   3. The piping take-up method according to claim 1, wherein the pulling wire is taken by a crane operation of a truck with a clay.

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