JP2017020518A - Pipe installation position induction device and pipe installation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe installation position induction device capable of inducing a Hume pipe to an accurate installation position, and extremely shortening time of installation work or the like, and provide a pipe installation method.MEANS: A pipe installation position induction device 4 includes: a tabular foundation 25; a height adjusting bolt 22; a deviation prevention anchor 21 for temporarily fixing the foundation 25 to a base 11; and a pair of guide means contacting with the outer peripheral surface of a Hume pipe 1 suspended and lowering to the bottom part of a groove, and inducing the Hume pipe 1 to a predetermined installation position. The guide means comprises a guide member 40 and a stationary bolt 30. The guide means can move in the extension direction of the foundation 25 in an adjustable manner according to the diameter of the Hume pipe 1 to be installed.SELECTED DRAWING: Figure 1

Description

  The present invention uses a pipe installation position guide device used to place the fume pipe at a predetermined position (determined position) in a laying groove during underground installation of the fume pipe, and the pipe installation position guide apparatus. The present invention relates to a pipe laying method for laying pipes.

As a method for underground installation of fume pipes, depending on the place to be buried and the situation of the land, a tunnel is excavated in the ground, and a fume pipe is laid in the tunnel (refer to Patent Document 1), or a groove is laid in the ground. An excavation method is carried out in which excavation is performed, a fume pipe is laid on a base placed at the bottom of the laying groove, a plurality of fume pipes are connected and laid, and then embankment is performed with earth and sand.
In the pipe laying method by the open-cut method, in order to install the fume pipe at the pipe installation position, the downstream side of the pipe is inserted into the installed pipe a little and joined, and then a fume is used using a clamping machine or a bar. Installation adjustment was performed so that the tubes were connected in a straight line.

JP-A-6-193387

The pipe laying operation is based on the design drawing. The bottom of the pipe (the lowest point of the circular pipe) is straight and straight, and the water is smoothly flowed from the start point to the end point where the altitude is determined. Therefore, it is necessary to lay the height and the plane position along the plan line without deviation.
In such a background, it is indispensable to install and fix (determine) a pipe having a weight of 1 t to 5 t in a predetermined position by the experience and technique of a skilled worker, which has been decreasing in recent years. Moreover, it is dangerous for an inexperienced person to handle heavy objects.
For this reason, in the pipe laying method by the conventional open-cut method as described above, in order to accurately perform the installation adjustment, skill and intuition based on years of experience of a skilled worker are required, and a great deal of time is required for installation work, etc. There was a problem that it took.

  The present invention has been conceived in view of the above problems, and by setting in advance to the “determined position” where the pipe should be installed, the pipe will naturally be able to be operated even by an inexperienced person. “Pipe installation fixed position guidance device” configured to come to the fixed position, which is simple and inexpensive, and guides the fume pipe to the correct installation position without requiring skill and intuition of skilled workers It is an object of the present invention to provide a pipe installation position guiding apparatus that can reduce the installation work time and the like, and a pipe laying method using the pipe installation position guiding apparatus.

  In order to achieve the above object, according to the first aspect of the present invention, when the fume pipe is laid on a base placed at the bottom of the groove to be laid, the fume pipe is placed at a predetermined installation position in the laid groove. A pipe installation position guiding device used for guiding to a plate-shaped base extending in a horizontal plane and in a direction perpendicular to the axial direction of the fume pipe, and the base can be adjusted in the height direction. A height adjusting means, a temporary fixing means provided on the base and temporarily fixing the base on the base, and a pair of guide means provided on both sides of the center of the base, A pair of guide means for guiding the fume pipe to a predetermined installation position by contacting the outer peripheral surface of the fume pipe lowered and descending to the bottom of the groove, and between the base and the laid fume pipe And the fume tube is inserted into the base. And a pair of guide means configured to be movable and adjustable in the extending direction of the base in accordance with the diameter of the fume pipe to be laid. And

  According to the above configuration, the fume tube can be guided to an accurate installation position, and there is an excellent advantage that the installation work time can be extremely shortened.

  Further, the invention according to claim 2 is the pipe installation determined position guiding device according to claim 1, wherein the pair of guide means abuts the fixing bolt and the outer peripheral surface of the fume pipe so that the fume pipe is in a predetermined state. An L-shaped guide member having a guide portion for guiding to an installation position, an insertion hole through which a fixing bolt is inserted, and a plurality of movements for moving and adjusting the guide portion to a position corresponding to the diameter of the fume tube to be laid And adjusting the movement of the guide portion according to the diameter of the fume tube, the L-shaped guide member is moved until the insertion hole coincides with the movement adjustment hole according to the diameter of the fume tube. In this state, the fixing bolt is fixed by being inserted through the insertion hole and the movement adjusting hole.

  According to the above configuration, it is possible to realize an inexpensive pipe installation position guiding device with a simple configuration.

  According to a third aspect of the present invention, in the pipe installation determining position guiding device according to the first aspect, the holding member is made of a plurality of steel strips.

  According to the said structure, if the number of several steel strips is adjusted, the thickness of a holding member can be adjusted. If a plurality of types of steel strips having different thicknesses are used, the thickness can be adjusted with better accuracy.

  The invention according to claim 4 is a pipe laying method for laying a fume pipe on a base placed at the bottom of a groove to be laid, a descent step of lowering the fume pipe from the ground to the base, The descent process includes a guidance process for automatically guiding the fume pipe to a predetermined installation position using the pipe installation position guidance device according to claim 1 or 2.

  According to the above configuration, it is possible to realize a pipe laying method that can guide the fume pipe to an accurate installation position, and can extremely shorten the installation work time.

  Further, the invention according to claim 5 is the pipe laying method according to claim 4, wherein the fume pipe that has been guided to a predetermined position by the guiding step is driven by driving a hydraulic jack, and the existing fume pipe is provided. And a pipe joining step of joining a new fume pipe.

  According to the said structure, a fume pipe | tube can be pushed straight by using a hydraulic jack, and accurate and safe pipe | tube joining is attained.

  According to the present invention, it is possible to guide the fume tube to an accurate installation position, and the installation work time is extremely shortened.

Sectional drawing of the state by which the fume pipe | tube was arrange | positioned at the laying groove | channel. Explanatory drawing of the method of laying a fume pipe | tube in a laying groove | channel. The front view of a pipe installation position guidance apparatus. The top view of a pipe installation position guidance apparatus. The front view which shows the state in which the fume pipe | tube from which a diameter differs was installed in the predetermined position. The figure which shows the position before joining of a fume pipe | tube, and the position after joining. Sectional drawing which shows the state by which the guide member is being fixed by the fixing bolt.

  Hereinafter, the present invention will be described in detail based on embodiments. 1 is a cross-sectional view of a state in which the fume pipe is disposed in the laying groove, FIG. 2 is an explanatory diagram of a method for laying the fume pipe in the laying groove, FIG. 3 is a front view of the pipe installation position guiding device, and FIG. FIG. 5 is a front view showing a state in which a fume pipe having a different diameter is installed at a predetermined position, and FIG. 6 is a view showing a position before and after joining the fume pipe. With reference to these drawings, a pipe installation position guiding device and a pipe laying method according to the present invention will be described.

  As shown in FIG. 1, a laying groove 10 is formed in the ground 13 in advance. A concrete base 11 and a lateral frame 12 are placed in the laying groove 10. And the fume pipe | tube 1 used for a water pipe, a sewer pipe, etc. is laid on the base 11, for example. The laying state of the fume pipe 1 will be described in more detail. The plurality of fume pipes 1 are laid and connected in series. A holding member 26 is interposed between the plurality of fume pipes 1 and the base 11, whereby the fume pipes are held at a predetermined distance from the base 11. The reason for maintaining such an interval is that, as shown in FIG. 2, at least the fume pipe 1 is hung by the crane hook 2 and lowered to the base 11 while the outer periphery of the fume pipe 1 is wound and held by the wire 3. This is because the fume tube 1 needs to be separated from the base 11 by the thickness of the wire 3 wound around the tube 1.

  The holding member 26 is configured by laminating a plurality of steel strips 26a (see FIG. 3). A plurality of types of strips 26a having different thicknesses are prepared, and the interval between the fume tube and the base 11 can be maintained at a predetermined value by appropriately stacking the strips 26a having different thicknesses.

  Next, an outline of a method for laying the fume tube 1 in the laying groove 10 will be described with reference to FIG. First, the fume tube 1 is lowered from the ground to the base 11. Specifically, the outer periphery of the fume tube 1 is suspended by the crane hook 2 while being wound and held by the wire 3, and is lowered to the base 11. During this lowering operation, the fume pipe 1 is automatically guided to a predetermined installation position by the pipe installation position guiding device 4. The pipe installation position guide device 4 is provided in advance on the base 11 and in the vicinity of the end of the fume pipe 1.

  Next, after the fume pipe 1 is guided to a predetermined installation position, the pair of hydraulic jacks 5 using the hydraulic pump 6 as a power source is driven to push the fume pipe 1 toward the existing fume pipe 1. Note that a fitting step (a concave portion at one end opening portion and a convex portion at the other end opening portion) is formed at the end opening portion of the fume tube 1, and the fitting step is formed by pushing the fume tube 1. By fitting, a new fume pipe 1 is joined and fixed to the existing fume pipe 1 at the joint A.

  At the time of the above pushing operation, the pipe installation position guiding device 4 guides the fume pipe 1 so as to always maintain the predetermined installation position. Therefore, the fume pipe 1 is pushed in so as to be aligned with the existing fume pipe 1. Thus, the fume tube 1 is tightly joined and fixed to the existing fume tube 1. Therefore, it is possible to overcome the difficulty of the conventional pushing operation.

In addition, as a method for fixing the pair of hydraulic jacks 5, the differential bar 7 is used. Specifically, a water pressure support horizontal member 8 such as an aluminum belly is fixed in contact with the differential bar 7, and the water pressure jack 5 is fixed to the water pressure support horizontal material 8. Thus, since the hydraulic jack 5 is fixed using the differential bar 7 provided in advance for forming the horizontal frame 12, it is not necessary to use a special fixing tool, and the cost can be reduced.
In addition, since the hydraulic jack 5 is fixed in this manner and the hydraulic pump 6 can be operated by operating the hydraulic pump 6 from a slightly separated position, the operator can perform this operation extremely safely.

  Next, the configuration of the pipe installation position guiding device 4 will be described with reference to FIGS. 3 and 4. The pipe installation position guide device 4 includes a holding member 26 and a plate-like base 25. The base 25 is a longitudinal member extending in the lateral direction of FIG. 3, and a concave space 25a is formed in the center of the concave portion 25 on the lower side of FIG. 4, and the holding member 26 is disposed in the concave space 25a. Has been.

  The base 25 is formed with handles 23 at both ends thereof. Further, the base 25 is provided with a shift anchor 21 (equivalent to temporary fixing means) for temporarily fixing the base 25 to the base 11 and a height adjusting bolt 22 (height adjusting means) of the base 25. . A pair of misalignment anchors 21 are formed in the left-right direction in FIG. Further, a pair (two) of height adjustment bolts 22 are formed in the vertical direction of FIG. 4, and four pairs are formed in the horizontal direction of FIG. It is sufficient that at least a pair of right and left height adjusting bolts 22 is provided. However, since eight bolts including the front and rear direction are provided, a more stable temporarily fixed state can be obtained and the height of the base 25 can be obtained. Adjustment accuracy is improved. The base 25 is provided with a level 24, and the level of the base 25 can be adjusted at the same time by the level 24 when adjusting the height of the base 25.

  The base 25 is provided with an L-shaped guide member 40 and a fixing bolt 30 for fixing the guide member 40. The guide member 40 and the fixing bolt 30 constitute a guide means that abuts against the outer peripheral surface of the fume tube 1 that is suspended and descends to the bottom of the groove to guide the fume tube 1 to a predetermined installation position.

  A pair of L-shaped guide members 40 are formed in the left-right direction in FIG. Further, a pair of fixing bolts 30 are formed in the vertical direction in FIG. 4, and a pair is further formed in the horizontal direction in FIG. The guide member 40 includes a base portion 40a placed on the base 25 and a guide portion 40b that rises vertically from the base portion 40a. An insertion hole 80 (see FIG. 7) through which the fixing bolt 30 is inserted is formed in the base 40a. Further, the upper end of the guiding portion 40b abuts on the outer peripheral surface of the fume tube 1 that is lowered for laying to automatically guide the fume tube 1 to a predetermined installation position.

  The base 25 is formed with a plurality of movement adjusting insertion holes 30a. The movement adjusting insertion holes 30a (see FIG. 7) are formed at intervals in the left-right direction of FIG. 4 according to the diameter of the fume pipe 1 to be laid.

  Next, a pipe laying method using the pipe installation position guide device 4 having the above configuration will be described in detail with reference to FIG. First, in order to hold the base 11 and the fume tube 1 at a predetermined interval, the holding member 26 adjusted to a predetermined thickness is fixed to the base 11. Next, the base 25 is disposed in front of the holding member 26. The guide member 40 is moved and adjusted according to the diameter of the fume pipe 1 to be laid. The movement adjustment work will be described in detail. The guide member 40 is moved in the left-right direction in FIG. 4 according to the diameter of the fume tube 1, and the fixing bolt 30 is inserted into the insertion hole 80 and the movement adjustment insertion hole 30a at that position. And fix with the nut 31. With such a configuration, for example, assuming five types of fume tubes 1, 1a, 1b, 1c, and 1d having different diameters, the guide member 40 is moved and adjusted according to the diameter of the fume tube 1 as shown in FIG. As a result, any of the fume tubes 1, 1a, 1b, 1c, and 1d can be guided to a predetermined installation position.

  Next, the height of the base 25 disposed in front of the holding member 26 is adjusted using the adjustment bolt 22 so as to be the same as the height of the holding member 26. And after height adjustment, the base | substrate 25 is temporarily fixed to the base 11 in the state. That is, the misalignment anchor 21 is screwed into the base 11 and temporarily fixed.

  Next, the laid fume pipe 1 is lowered from the ground to the base 11. During this lowering operation, the fume pipe 1 is automatically guided to a predetermined installation position by the pipe installation position guiding device 4. Next, the hydraulic jack 5 is driven to push the fume pipe 1 toward the existing fume pipe 1, and the fume pipe 1 is joined and fixed to the existing fume pipe 1.

  Before the pushing operation of the fume tube 1 is performed, the fume tube 1 is supported by the base 25 and the holding member 26 as shown in FIG. After the pushing operation of the fume tube 1 is completed, the fume tube 1 is supported by the holding member 26 as shown in FIG. Accordingly, the base 25 can be removed from the fume tube 1.

  Then, after the joining and fixing work of the fume tube 1 is completed, the tightening of the slip anchor 21 is loosened, the base 25 is removed from the base 11 and moved to a predetermined position for the next laid fume tube 1. To use. In this way, the holding member 26 remains fixed to the base 11 and the base 25 is moved and used.

As described above, by laying the fume pipe 1 using the pipe installation position guiding device 4 and the hydraulic jack 5, it becomes possible to guide the fume pipe 1 to an accurate installation position, and installation work, joining work, etc. It can be greatly shortened.
According to the experiment by the inventor of the present application, when the fume pipe 1 is laid using the pipe installation position guiding device 4 and the hydraulic jack 5 of the present invention, compared to the conventional construction method that does not use them, there is less experience that is not a skilled worker. Even a person can perform construction in about half the work time.

  The pipe installation position guiding device and the pipe laying method of the present invention can be applied to a fume pipe underground burying method by an open-cut method.

1: Hume pipe 4: Pipe installation position guide device 5: Hydraulic jack 10: Laying groove 11: Base 21: Displacement anchor 22: Height adjustment bolt 25: Base 26: Holding member 30: Fixing bolt 30a: For movement adjustment Insertion hole 31: Nut 40: Guide member 40a: Base 40b: Guide part 80: Insertion hole

Claims (5)

A pipe installation position guiding device used for guiding the fume pipe to a predetermined installation position in the laying groove when laying the fume pipe on a base placed at the bottom of the groove to be laid. ,
A plate-like base extending in a horizontal plane and in a direction perpendicular to the axial direction of the fume tube;
A height adjusting means for adjusting the base in a height direction;
A temporary fixing means provided on the base and temporarily fixing the base on the base;
A pair of guide means respectively provided on both sides of the central portion of the base, and abuts against the outer peripheral surface of the fume tube that is suspended and descends to the bottom of the groove to guide the fume tube to a predetermined installation position. A pair of guiding means for,
A holding member interposed between the base and the laid fume pipe, and holding the fume pipe at a predetermined distance from the base;
With
The pipe installation determining position guiding device characterized in that the pair of guide means is configured to be movable and adjustable in the extending direction of the base according to the diameter of the fume pipe to be laid. The pair of guide means includes
Fixing bolts,
An L-shaped guide member having a guide portion that contacts the outer peripheral surface of the fume tube and guides the fume tube to a predetermined installation position; and an insertion hole through which the fixing bolt is inserted;
A plurality of movement adjustment holes for adjusting the movement of the guide portion to a position corresponding to the diameter of the fume pipe to be laid;
With
When adjusting the movement of the guide portion according to the diameter of the fume tube, the L-shaped guide member is moved until the insertion hole coincides with the movement adjusting hole according to the diameter of the fume tube. The pipe installation determined position guiding device according to claim 1, wherein the insertion hole and the movement adjusting hole are inserted and fixed.   The pipe installation determined position guiding device according to claim 1, wherein the holding member is made of a plurality of steel strips. A pipe laying method for laying a fume pipe on a base placed at the bottom of a groove to be laid,
A descent process for lowering the fume tube from the ground to the base,
A guiding step of automatically guiding the fume pipe to a predetermined installation position using the pipe installation position guiding device according to claim 1 or 2 during the descending step;
A pipe laying method characterized by comprising: The pipe laying method according to claim 4, further comprising a pipe joining step in which a fume pipe guided to a predetermined position by the guiding step is pushed by driving a hydraulic jack and a new fume pipe is joined to the existing fume pipe.

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