JP2011179671A - Fluid pipe movement preventing means and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid pipe movement preventing means and method that can surely prevent the movement of a fluid pipe. <P>SOLUTION: The movement preventing means for the fluid pipe 11 includes a connecting member 14 having a divided structure and locking the fluid pipe 11 along a circumferential direction by attaching the mutual peripheral ends, and a support member 5 for supporting the connecting member 14. The support member 5 has a pressure receiving surface 6 receiving soil pressure of surrounding soil above the support member 5 in a direction opposing the movement of the fluid pipe 11, and a bottom face friction surface 7 generating friction between itself and the surrounding soil below the support member 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is composed of a connecting member provided in the circumferential direction of the fluid pipe by assembling each other's peripheral ends and a support member fixed to the connecting member and supporting the connecting member. The present invention relates to a movement preventing means for preventing movement of a fluid pipe in the tube axis direction and a method thereof.

  Conventionally, a thrust force due to fluid pressure imbalance, etc., is generated due to the extension of the conduit of the fluid pipe and the attachment of various members such as a control valve, and this force causes the fluid pipe to be particularly oriented in the tube axis direction. As a means of preventing the movement of the fluid pipe, a predetermined movement prevention plate is installed according to the extending mode of the fluid pipe, and the thrust force is resisted by using the earth covering of the surrounding soil. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 61-14277 (page 3, FIG. 2)

  However, in Patent Document 1, it is necessary for the movement preventing means to have a function of locking to the fluid pipe, and it is necessary to obtain a supporting force by the surrounding soil. There is a problem that the fluid pipe cannot be sufficiently prevented from moving.

  The present invention has been made paying attention to such problems, and an object of the present invention is to provide a fluid pipe movement preventing means and a method thereof that can reliably prevent the movement of the fluid pipe.

In order to solve the above problems, the fluid pipe movement prevention means of the present invention comprises:
A connecting member having a divided structure and assembling each other's peripheral ends to lock the fluid pipe along the circumferential direction, and a support member fixed to the connecting member and supporting the connecting member And
The support member has a bottom friction that generates friction between a pressure-receiving surface that receives the earth pressure of the surrounding soil above the support member in a direction opposite to the movement of the fluid pipe, and the surrounding soil below the support member. And a surface.
According to this feature, since the connection member for locking the fluid pipe is fixed and supported by the support member having the pressure receiving surface and the bottom friction surface, the fluid pipe, the connection member, and the support member are integrated, Not only can the pipe be stably locked and the movement of the fluid pipe can be reliably prevented, but versatility is enhanced by appropriately combining the connecting member and the support member.

The fluid pipe movement prevention means of the present invention comprises:
The support member is provided below the connection member.
According to this feature, since the support member fixed to the connection member is provided below the connection member, the support member can be reliably embedded in the surrounding soil, and the earth covering of the upper surrounding soil can be used. Since the pressure receiving surface of the support member can receive a large earth pressure and the bottom friction surface can generate a large amount of friction with the surrounding soil below, the connection member can be supported stably. it can.

The fluid pipe movement prevention means of the present invention comprises:
The connection member and the support member fixed to the connection member are provided at predetermined intervals along the extending direction of the fluid pipe.
According to this feature, the connecting member and the supporting member are provided at predetermined intervals along the extending direction of the fluid pipe, so that the soil of the covering soil interposed between the members spaced at the predetermined interval is provided. Pressure can be applied to each support member.

The fluid pipe movement prevention means of the present invention comprises:
The fluid pipe is connected to a flow control valve capable of blocking the pipe of the fluid pipe, and a pair of the connecting members are disposed at opposing portions of the fluid pipe that are opposed to each other with the flow control valve interposed therebetween. An integral support member that supports both the connection members is fixed to the pair of connection members.
According to this feature, since the pair of connecting members provided at the opposite positions sandwiching the control valve in the tube axis direction are integrated with the supporting member fixed to both connecting members, the flow path is blocked. It is possible to maintain a connected state between the flow control valve and the fluid pipe, in which fluid pressure easily occurs, and to prevent movement in both directions of the pipe axis.

The fluid pipe movement prevention means of the present invention comprises:
The integral support member is provided integrally by assembling substantially the same divided members each having a fixing portion connected to each connection member.
According to this feature, the support members can be generalized by configuring the divided members each having the fixing portion connected to the connection member as a support member that is assembled and integrated with each other.

The fluid pipe movement prevention method of the present invention comprises:
The surrounding soil is excavated to the arrangement surface where the support member is arranged, which is lower than the arrangement depth of the fluid pipe, the support member is arranged on the arrangement surface, and the connection member is fixed to the support member. At the same time, it is connected to the fluid pipe, and the fluid pipe is covered with surrounding soil.
According to this feature, the surrounding soil is excavated to a placement surface below the placement depth of the fluid pipe, the support member is placed, the connection member is fixed to the support member and connected to the fluid pipe, The supporting member can sufficiently obtain the covering of the surrounding soil and can stably support the connecting member by a simple process of simply covering.

(A) is a front view which shows the state which has arrange | positioned the supporting member in Example 1, (b) is a side view like (a). (A) is a front view which shows the state which has arrange | positioned the fluid pipe | tube, (b) is a side view like (a). (A) is a front view which shows the state which coat | covered the movement prevention means and the fluid pipe | tube with the covering soil, (b) is a side view like (a). (A) is a top view of a supporting member, (b) is a side view like (a). (A) is sectional drawing which shows a receiving stand, (b) is a side view like (a). (A) is AA sectional drawing of Fig.5 (a), (b) is BB sectional drawing of Fig.5 (a). (A) is an enlarged view of a dotted line enclosing part of Drawing 6 (a), and (b)-(d) is an enlarged view which showed a tilting situation of a locking member over time. It is sectional drawing which shows the latching member in a modification. (A) is a front view which shows the state which coat | covered the movement prevention means in Example 2, and the fluid pipe | tube with the covering soil, (b) is a side view like (a).

  A mode for carrying out the fluid pipe movement preventing means and method according to the present invention will be described below based on examples.

  The movement preventing means and method according to the first embodiment will be described with reference to FIGS. As shown in FIGS. 1 (a), (b) to 3 (a), (b), the fluid pipe 11 of the present embodiment is a newly laid water pipe, and above the periphery of the fluid pipe 11. Is a soil covering of a predetermined depth, and is covered with a covering soil as a surrounding soil above a bottom surface of a support member described later.

  The movement prevention means and method of the fluid pipe 11 according to the present invention will be described in the order of installation steps. The fluid pipe 11 is a pipe region where the pipe 11 is laid in a substantially straight line, and is used as a control valve connected to the fluid pipe. The surrounding area including the installation location of the water valve 2 is sequentially excavated from the original ground surface G at a predetermined ground height, as shown in FIGS. 1 (a) and 1 (b), by a well-known earth retaining method or open pit method. To do.

  The excavation is performed up to the laying surface K where the fluid pipe is laid, and then the region where the water control valve is installed in the pipe is excavated to the arrangement surface J further below the laying surface K. The crushed stone 4 is laid on the arrangement surface J, and the support member 5 made of a concrete block body is arranged.

  The support member 5 is configured as an integral support member having a substantially rectangular parallelepiped shape by assembling the divided members 5a and 5a formed in substantially the same shape, and is arranged with the long side facing in the tube axis direction. More specifically, as shown in FIGS. 4A and 4B, each of the divided members 5a makes the bulging portion 5b of one divided member 5a abut the flat portion 5c of the other divided member 5a. These are integrated by inserting the long bolts 5f with the insertion holes 5d formed in the respective bulged portions 5b being substantially coaxial, inserting the long bolts 5f, and inserting the nuts 5g, 5g into both ends of the long bolts 5f. On the upper surface of each divided member 5a, a fixing portion 5e made of an externally protruding male screw is integrated with concrete at a predetermined position, that is, the fixing portion 5e is in the tube axis direction of the fluid pipe in the support member 5. It is provided at a location separated by a predetermined interval. Note that the support member is not necessarily limited to a member that is integrated by assembling the divided members with each other, and may be a member that includes only an integral part that cannot be divided.

  Next, as shown in FIGS. 1A and 1B, the lower part 14 b constituting the receiving base 14 as the connection member is fixed to each fixing portion 5 e provided on the support member 5. Specifically, the lower part 14b is fixed to the support member 5 by inserting the fixing portion 5e into the insertion hole 14d formed in the lower end surface thereof and screwing the nut 5e into the fixing portion 5e.

  In addition, you may arrange | position the supporting member 5 of the state which fixed the lower part 14b beforehand to each fixing | fixed part 5e on the crushed stone 4 laid in the arrangement | positioning surface J. FIG.

  Further, the fluid pipes 11 are respectively mounted on the lower parts 14b, and the water control valves 2 as the control valves are connected between the ends of the fluid pipes 11 facing each other. The water control valve 2 and each fluid pipe 11 are connected by insertion of a receiving port and an insertion port through a sealing member (not shown). The water control valve 2 is configured to be able to block a flow path in the fluid pipe 11 by operating a valve body (not shown) in a valve housing constituting the water control valve 2.

  In addition, the fluid in the pipe of this embodiment can flow down in the pipe configuration (not shown) or in the left and right pipe directions in the drawing, and therefore, the fluid pipe 11 is so-called due to the blocking of the water control valve 2 or the like. It is assumed that the thrust force can act in any of the left and right pipeline directions.

  Next, as shown in FIGS. 2 (a) and 2 (b), an upper part 14a constituting the receiving base 14 is arranged on the upper surface of the fluid pipe 11 placed on each lower part 14b. 14a and the lower part 14b are connected by the bolt nut 9. After assembling the cradle 14, as shown in FIGS. 3 (a) and 3 (b), by disposing the housing tube 3 in the region above the valve shaft of the water control valve 2, the valve shaft can be removed from the ground. A space is secured so as to be rotatable, and the support member 5, the receiving stand 14 and the fluid pipe 11 are covered with the covering soil, and the original ground surface G is refilled.

  That is, as shown in FIGS. 5A and 5B, the receiving base 14 as the connecting member of the present invention is a base that receives the weight of the fluid pipe 11, and extends along the outer peripheral surface of the straight portion of the fluid pipe 11. And has a divided structure composed of an upper part 14a and a lower part 14b, which are connected by bolts and nuts 9 and 9 and fixedly supported on the floor surface below the fluid pipe 11. The movement in the direction of the tube axis C with respect to the fluid tube is prevented.

  The cradles 14 and 14 connected to the fluid pipes 11 are connected in pairs to opposing portions of the fluid pipes that sandwich the water control valve 2 in the pipe axis direction, and both the cradles 14 and 14 are fixed on the lower side. The unitary support member 5 is fixed.

  Each support member 5 is configured as a pressure receiving surface in which both side surfaces 6 and 6 facing in the left-right direction in the figure receive the earth pressure of the covering soil covering the fluid pipe 11 in a direction opposite to the movement of the fluid pipe 11. The bottom surface 7 is configured as a bottom friction surface that generates friction with the surrounding soil below the bottom surface 7, and supports the receiving base 14 connected to the fluid pipe 11 on which the thrust force acts.

  Next, each member provided on the cradle 14 will be described. The first locking member 20 that locks with the outer surface of the fluid pipe 11, and the outer surface of the fluid pipe 11 that is formed separately from the first locking member 20. A second locking member 30 to be locked, and a recess 16 that opens toward the outer surface of the fluid pipe 11 along the inner peripheral surface and accommodates the first locking member 20 and the second locking member 30 therein, respectively. The first locking member 20 and the second locking member 30 are each configured by a bolt 19 that presses the fluid toward the outer surface of the fluid pipe 11.

  As shown in FIG. 5A, the recess 16 is divided in the circumferential direction along the inner peripheral surface of the receiving base 14, and is formed at four locations. The first locking member 20, 20 and the second locking members 30, 30 are fitted.

  The first locking member 20 has a first claw 20 a formed in an arc shape having substantially the same diameter as the outer diameter of the fluid pipe 11 to lock the outer surface of the fluid pipe 11. A rubber body 18 as an elastic body is interposed between the 16 inner walls 16a. Similarly, the rubber member 18 is interposed between the second locking member 30 and the inner wall 16 a of the recess 16.

  In addition, about the quantity of a recessed part and a locking member, it is not restricted to a present Example, The number should just be provided suitably along the circumferential direction of a fluid pipe | tube.

  As shown in FIGS. 6A and 6B, the first locking members 20 and 20 have a predetermined position on the outer surface of the fluid pipe 11, and an opposing position that is substantially opposed to the predetermined position with the pipe axis interposed therebetween. The second locking members 30 and 30 are opposed to each other at a predetermined position on the outer surface of the fluid pipe 11 that is different from the predetermined position, and substantially opposite to the other predetermined position with the tube axis interposed therebetween. And is provided.

  Furthermore, the first locking members 20 and the second locking members 30 are alternately provided on the outer surface of the fluid pipe 11 at substantially equal intervals along the circumferential direction.

  Further, the first locking member 20 and the second locking member 30 are formed in the same shape, and in this way, only by changing the direction of the nail and storing it in the recess 16, as described later. In addition to preventing the fluid pipe 11 from moving relative to the receiving base 14 in both directions of the pipe axis C, the first locking member 20 and the second locking member 30 can be used in common, thereby reducing manufacturing effort and cost.

  As shown in FIG. 6 (a), the first locking member 20 has a first claw 20a extending toward the tube axis C and locking with the outer surface of the fluid pipe 11, as will be described later. When the fluid pipe 11 is about to move relative to the receiving base 14 in one direction of the pipe axis, the first claw 20a tilts and is accommodated in the recess 16 so as to bite into the outer surface of the fluid pipe 11. .

  Similarly, as shown in FIG. 6B, the second locking member 30 has a second claw 30a extending toward the tube axis C and locking with the outer surface of the fluid pipe 11, and will be described later. When the fluid pipe 11 is about to move relative to the receiving base 14 in the other direction of the pipe axis as described above, the second claw 30a tilts and is accommodated in the recess 16 so as to bite into the outer surface of the fluid pipe 11. Has been.

  Next, the first locking member 20 and the second locking member 30 fitted in the recess 16 in the upper part 14a are bolts 19 as pressing means screwed into the recess 16 from the outer surface of the upper part 14a. The first locking member 20 and the second locking member 30 fitted in the recess 16 in the lower part 14b are pressed by the bolt 19 as described above. The bulging portion 14 c as a pressing means that bulges toward the outer surface of the fluid pipe 11 on the inner bottom surface of the recess 16 is pressed toward the outer surface of the fluid pipe 11.

  By doing so, the bolt 19 makes it easier for the first claw 20a of the first locking member 20 and the second claw 30a of the second locking member 30 to bite into the outer surface of the fluid pipe 11, and will be described later. It is possible to reliably prevent the fluid pipe 11 from moving in the direction of the pipe axis C.

  The operation of the first locking member 20 will be described. At a position as shown in FIG. 7A, the fluid pipe 11 is connected to the pipe axis C as shown in FIG. When trying to move in one direction (the direction of the white arrow in the figure), the first locking member 20 that has been locked to the outer surface of the fluid pipe 11 is predetermined in one direction of the tube axis C (the direction of the white arrow in the figure). Move by the gap of.

  Further, as shown in FIGS. 7C and 7D, the fluid pipe 11 is about to move in one direction of the pipe axis C and is moved in the one direction of the pipe axis C by the predetermined gap. The first locking member 20 comes into contact with the inner wall 16b of the recess 16 and the end surface 19a of the bolt 19, and the first claw 20a of the first locking member 20 tilts toward the outer surface of the fluid pipe 11 (see the black arrow in the figure). ).

  As described above, when the fluid pipe 11 is about to move relative to the receiving base 14 in one direction of the tube axis C, the first locking member 20 tilts in the concave portion 16, whereby the inner wall of the concave portion 16. 16b and the end surface 19a of the bolt 19 are used as reaction force, and the first claw 20a bites into the outer surface of the fluid pipe 11, so that the fluid pipe 11 moves relative to the receiving base 14 in one direction of the tube axis C. Can be prevented.

  Although not shown in particular, when the fluid pipe 11 moves in the other direction of the tube axis C in the opposite direction to the one direction of the tube axis C described above, the second locking member 30 is connected to the first locking member 20 described above. The second locking member 30 is tilted in the recess 16 when the fluid pipe 11 operates in the same manner and the fluid pipe 11 tries to move relative to the receiving base 14 in the other direction of the tube axis C. Since the second claw 30a bites into the outer surface of the fluid pipe 11 using the end face 19a of the bolt 16 and the bolt 19 as a reaction force, the fluid pipe 11 moves relative to the receiving frame 14 in the other direction of the pipe axis C. Can be prevented.

  That is, the first locking member 20 and the second locking member 30 can be combined to prevent the fluid pipe 11 from moving relative to the receiving base 14 in both directions of the pipe axis C.

  Further, the shape of the first claw 20a can be configured so that the fluid pipe 11 is likely to bite into the outer surface of the fluid pipe 11 when the fluid pipe 11 is about to move relative to the receiving base 14 in one direction of the pipe axis C. Similarly, the shape of the second claw 30a can be configured so that the fluid pipe 11 can easily bite into the outer surface of the fluid pipe 11 when the fluid pipe 11 tries to move relative to the receiving base 14 in the other direction of the pipe axis C.

  In addition, the first locking member 20, 20 or the second locking member 30, 30 tilts in the recess 16 at a predetermined position and an opposed position that are substantially opposed to each other with the tube axis C interposed therebetween, whereby the first claw When the 20a, 20a or the second claw 30a, 30a bites into the outer surface of the fluid pipe 11, the movement can be prevented without applying an offset load to the fluid pipe 11.

  Furthermore, the first claw 20a of the first locking member 20 and the second claw 30a of the second locking member 30 are alternately locked to the outer surface of the fluid pipe 11 at substantially equal intervals along the circumferential direction. Therefore, relative movement of the fluid pipe 11 relative to the receiving base 14 in one direction and the other direction of the pipe axis can be similarly prevented in a balanced manner.

  The configuration of the locking member is not necessarily limited to the present embodiment. For example, as shown in FIG. 8 as a modified example of the connecting member of the present invention, each locking member provided on the receiving stand 24, for example. The member 40 includes two claws 40a and 40a extending in the direction of both tube axes, and is formed in a symmetrical shape around a line perpendicular to the tube axis. You may have a symmetrical inner surface centering on the said orthogonal line. According to such a configuration, the movement of the locking member 40 can be simplified in the circumferential direction of the fluid pipe as well as the movement of the pipe axis direction in the left and right directions can be prevented equally.

  As described above, since the receiving base 14 as a connecting member for locking the fluid pipe 11 is fixed and supported by the support member 5 having the pressure receiving surface 6 and the bottom friction surface 7, the fluid pipe 11, the receiver The gantry 14 and the support member 5 are integrated so that the fluid pipe 11 can be stably locked, and the movement of the fluid pipe 11 can be surely prevented, and the versatility can be obtained by appropriately combining the cradle 14 and the support member 5. Will increase.

  Further, since the support member 5 fixed to the cradle 14 is provided below the cradle 14, the support member 5 can be reliably embedded in the covering soil, and the soil covering of the covering soil can be compared. The side surface 6 as the pressure receiving surface of the support member 5 can receive a large earth pressure, and the bottom surface 7 as the bottom friction surface causes a large friction with the surrounding soil below the support member 5. Therefore, the receiving stand 14 can be supported stably.

  In addition, since the pair of receiving bases 14 and 14 provided at opposing positions sandwiching the water control valve 2 in the tube axis direction are integrated with the support member 5 fixed to the receiving bases 14 and 14, By shutting off, it is possible to maintain the connection state between the water control valve 2 and the fluid pipe 11 where fluid pressure is likely to occur, and to prevent movement in both directions of the pipe axis.

  Further, the support members can be generalized by configuring the divided members 5a and 5a having the fixing portions 5e connected to the receiving base 14 as the support members 5 that are assembled and integrated with each other.

  Further, the covering soil is excavated to the disposition surface J below the laying surface K which is the disposition depth of the fluid pipe 11, the support member 5 is disposed, the receiving base 14 is fixed to the support member 5, and the fluid pipe The supporting member 5 can sufficiently obtain the covering of the covering soil and can stably support the receiving stand 14 by a simple process of connecting to the covering 11 and covering the covering soil.

  Although the support member 5 of this embodiment is provided below the receiving base 14 as a connection member, the location where the support member is provided is not necessarily limited to this embodiment. For example, the support member is a fluid pipe. It may be provided on one side or both sides of the connecting member that is locked to.

  Next, the movement preventing means and method according to the second embodiment will be described with reference to FIG. In addition, the same structure as the said Example and the overlapping structure are abbreviate | omitted.

  As shown in FIGS. 9A and 9B, the fluid pipe 11 of this embodiment is laid in a substantially straight line, and the pipe plug 8 is closed at the right end of the fluid pipe 11 by a flange 8a. The end of the pipeline is configured. The fluid in the pipe of the present embodiment can flow down toward the pipe plug 8 in the right pipe line direction, so that the fluid pipe 11 has a thrust force to move in the right direction in FIG. It shall act.

  Each of the receiving base 14 and the support member 25 is provided along the extending direction of the fluid pipe 11 at a location near the tube plug 8 and a location spaced from the vicinity by a predetermined dimension in the tube axis direction. Note that only the above two locations of the cradle 14 and the support member 25 are shown in FIG. 9A, but each set of members including the cradle 14 and the support member 25 is separated along the tube axis direction. In addition, a predetermined number of sets may be provided.

  The support member 25 is formed in a substantially cubic shape or a rectangular parallelepiped shape having a slightly longer side in the tube axis direction, and is directly arranged on the arrangement surface where the original ground is excavated without the crushed stone described above. The support member 25 has a side surface 26 facing rightward in the figure as a pressure receiving surface and a bottom surface 27 as a bottom friction surface, and supports the cradle 14 connected to the fluid pipe 11 on which a thrust force acts. ing.

  As described above, each set of the support base 14 and the support member 25 as the connection members are provided at predetermined intervals along the direction in which the fluid pipe 11 extends, so that the members are spaced at predetermined intervals. The earth pressure of the covering soil interposed therebetween can be applied to each support member 25 individually.

  As shown in FIG. 9A, the distance between adjacent support members 25, 25 will be described in detail as an example. The distance between the opposing surfaces in the tube axis direction of each pair of support members 25, 25 shown in the figure. Is L, the height dimension of each support member is H, and the inherent internal friction angle of the covering soil is θ, the adjacent support members 25 and 25 are separated so as to satisfy the formula L ≧ H ÷ tan θ. is doing. By arranging the support members 25 and 25 apart from each other in this way, the pressure receiving surface 26 of each support member 25 is not affected by the adjacent support member 25, and the earth covering up to the original ground of the covered soil is performed. Therefore, the support force of the support base 14 by the support member 25 can be stably maintained.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above embodiment, the internal fluid of the fluid pipe is the water supply, but it may be a sewer, and acts on the fluid pipe in the axial direction due to the water pressure in the pipe or the dynamic pressure due to the water flow. If there is, the fluid pipe movement prevention means of the present invention can be applied in addition to the straight pipe section in the present embodiment.

  Moreover, in the said Example, although the 1st locking member 20 and the 2nd locking member 30 are alternately provided in the outer surface of the fluid pipe | tube 11 at substantially equal intervals along the circumferential direction, The locking members 20 and the second locking members 30 are not necessarily provided alternately, and may be appropriately installed along the circumferential direction.

  Moreover, in the said Example, although the movement prevention means of this invention is provided in the pipeline area | region laid by the substantially linear form, specifically, the location near the water control valve 2, or the location near the pipe plug 8. The location where the movement preventing means is installed may be any location where a thrust force can be generated, such as a curved pipe portion, a different diameter pipe connecting portion, or a T-shaped pipe portion.

2 Water control valve (control valve)
5 Support member 5a Dividing member 5e Adhering part 6 Side surface (pressure receiving surface)
7 Bottom (bottom friction surface)
8 Pipe stopper 11 Fluid pipe 14 Receiving base (connection member)
14a Upper part 14b Lower part 24 Receiving base (connection member)
25 Support member 26 Side surface (pressure receiving surface)
27 Bottom (bottom friction surface)

Claims (6)

A connecting member having a divided structure and assembling each other's peripheral ends to lock the fluid pipe along the circumferential direction, and a support member fixed to the connecting member and supporting the connecting member And
The support member has a bottom friction that generates friction between a pressure-receiving surface that receives the earth pressure of the surrounding soil above the support member in a direction opposite to the movement of the fluid pipe, and the surrounding soil below the support member. A movement preventing means for preventing movement of the fluid pipe in the tube axis direction.   The fluid pipe movement preventing means according to claim 1, wherein the support member is provided on a lower side than the connection member.   The said connection member and the said support member fixed to this connection member are spaced apart and provided at predetermined intervals along the extending direction of the said fluid pipe | tube. Means for preventing movement of the fluid pipe.   The fluid pipe is connected to a flow control valve capable of blocking the pipe of the fluid pipe, and a pair of the connecting members are disposed at opposing portions of the fluid pipe that are opposed to each other with the flow control valve interposed therebetween. The fluid pipe according to any one of claims 1 to 3, wherein an integral support member that supports both the connection members is fixed to the pair of connection members. means.   5. The fluid pipe movement prevention according to claim 4, wherein the integral support member is integrally provided by assembling substantially the same divided members each having a fixing portion connected to each connection member. means.   The surrounding soil is excavated to the arrangement surface where the support member is arranged, which is lower than the arrangement depth of the fluid pipe, the support member is arranged on the arrangement surface, and the connection member is fixed to the support member. The method for preventing movement of a fluid pipe using the movement preventing means according to claim 1, wherein the fluid pipe is connected to the fluid pipe and the fluid pipe is covered with surrounding soil.

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