JPH0742223A - Correction method of position of pipe line tool thereof - Google Patents

Abstract

PURPOSE:To easily and accurately correct the position of buried pipe line in a short period. CONSTITUTION:Casings 15, 15 are driven at both sides in the radial direction of a pipe line 1 from the ground level G. A first rod 3 is inserted into one of casings 15 to extend to the other side along the bottom of pipe line 1. And also a second rod 4 is inserted ininto the other casing 15. After these first and second rods 3, 4 have been connected to each other, these are raised by a lifter 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipeline position correcting method suitable for correcting the vertical position of a pipeline buried in the ground such as a sewer pipe and a jig used therefor. It is a thing.

[0002]

2. Description of the Related Art Generally, pipelines such as sewer pipes are buried in the ground. As shown in FIG. 5, the pipeline 1 thus buried in the ground changes from a predetermined position (reference numeral (a) in the figure) to the reference numeral (b) after construction due to, for example, ground subsidence or ground vibration. It may shift like this. Especially sewage pipes,
In the pipeline 1 through which the liquid flows, if the position shifts in the vertical direction, a predetermined inclination cannot be obtained, and the original function may be impaired.

Conventionally, as a method for correcting the position of such a pipeline 1 after construction, as shown in FIG.
There is a method of excavating and correcting the position of the pipeline 1 and then filling the pipeline 1 again. Also, without excavating the ground surface G,
There is also a method of injecting a drug solution below the conduit 1 in the state shown in FIG. 5 and moving the conduit 1 upward by the expansion action of this drug solution to correct the position.

[0004]

However, the conventional method for correcting the position of a pipeline as described above has the following problems. First, in the method of excavating the ground surface G shown in FIG. 6, a large machine is required, and at the time of its construction, the water flow in the pipeline 1 must be temporarily interrupted, which requires a large amount of construction. Becomes Therefore, there are problems that the construction cost becomes high and the construction period becomes long. Further, when there is a structure such as a building above the pipeline 1, it may be impossible to open and cut the ground surface G itself. On the other hand, in the method of injecting the chemical liquid, if the injection amount is large, there is a possibility that the groundwater is contaminated. Further, for example, when pushing up the pipeline 1, the pipeline 1
The chemical solution is injected below the pipe, but due to the expansion of the chemical solution, the conduit 1
At the same time, the ground may be pushed up, and the ground surface G may rise, and the structure or the like built on the ground surface G may be pressed, and in the worst case, the structure may be damaged. Further, in this method, as described above, since the position of the conduit 1 is corrected by the expansion action of the chemical liquid, there is a problem that it is difficult to finely adjust the position of the conduit 1. The present invention is
In view of the above points, a pipe position correcting method and a jig used therefor capable of easily, accurately, and quickly correcting the position of a buried pipe are provided. The purpose is to do.

[0005]

The invention according to claim 1 is
A method for correcting the position of a pipeline buried in the ground,
From the ground surface, a cylinder is driven into both sides in the radial direction of the conduit whose position is to be corrected, and one rod member provided with an elastic member having flexibility at its tip end is provided on the cylinder on one side. It is inserted so that the tip of the one rod member reaches the other side along the bottom surface of the conduit, and the tip of the one rod member is engaged with the tubular body of the other side. Another possible rod member is inserted, and after the one rod member and the other rod member are engaged with each other, both of these rod members are hoisted by hoisting means.

According to a second aspect of the present invention, in the method for correcting the position of a pipeline according to the first aspect, when hoisting both rod members, a water jet device is inserted from the ground surface, and the water jet device is used. It is characterized in that water is injected into the ground above the pipeline.

According to a third aspect of the present invention, there is provided a jig for correcting the position of a pipeline embedded in the ground, which jig comprises one rod member and another rod member. , The one rod member is composed of a rod extending in one direction and a flexible elastic member attached to the tip of the rod, and the tip of the elastic member of the one rod member is It is characterized in that the tip end portion of the other rod member is structured to be engageable.

[0008]

According to the first aspect of the invention, from the ground surface, the cylinders are respectively driven into both sides in the radial direction of the conduit whose position is to be corrected, and the one end of the cylinder is provided with flexibility at its tip. Insert one rod member provided with the elastic member having, to let the tip end of the one rod member reach the other side along the bottom surface of the conduit, and to the tubular body on the other side, Insert another rod member that can be engaged with the tip of the rod member,
After the one rod member and the other rod member are engaged with each other, both rod members are lifted by the lifting means. As a result, the pipeline can be moved upward.

According to the second aspect of the present invention, when both rod members are lifted, water is injected into the ground above the pipeline by the water jet device inserted from the ground surface. This softens the ground and facilitates the upward movement of the pipeline.

According to a third aspect of the present invention, the jig used for correcting the position of the pipeline is composed of one rod member and another rod member, and the one rod member is a rod extending in one direction. A flexible elastic member attached to the tip of the rod, and the tip of the elastic member of one rod member and the tip of the other rod member are engageable. As a result, when one rod member is inserted from the ground surface, the elastic member at the tip of the rod member is deformed along the bottom surface of the conduit and reaches the other side. Then, by inserting another rod member from the ground surface vertically above the other side and engaging these one rod member and the other rod member, the one rod member and the other rod member are formed. Can be connected.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. 1 to 4 show an example of construction to which the pipe line position correcting method according to the present invention is applied. Figure 1
As shown in FIG. 1, the jig 2 for correcting the position of the pipeline 1 buried in the ground includes a first rod member (one rod member) 3 and a second rod member (other rod member) 4. It consists of

The first rod member 3 has a diameter of 25 mm, for example.
At the rear end of a steel rod (rod) 5 having a constant length of about 1 m, an extension rod 6 also made of steel is connected in the axial direction thereof, while at the tip of the rod 5, for example, the thickness dimension. Is 3 mm and the width is about 50 mm, and is made of a belt-shaped steel material, and a flexible elastic member 7 is attached. The elastic member 7 is previously formed into an arc shape as shown in FIG. Further, as shown in FIG. 2, the tip end portion 7a of the elastic member 7 is formed with a taper portion 7b having a smaller widthwise dimension toward the tip end, and also with locking recesses 8, 8. There is. On the other hand, as shown in FIG. 1, the second rod member 4 has, for example, a diameter of 25 mm.
In the structure, a steel connecting rod 9 having a constant length of about 1 m and a steel extending rod 6 are connected in the axial direction. As shown in FIG. 2, the tip end portion of the connecting rod 9 is fitted into the taper portion 7b so as to be engaged with the tip end portion 7a of the elastic member 7.
Are formed. Further, in this recess 10, locking projections 11, 11 that engage with the locking recess 8 are provided so as to be retractable in the recess 10 by being biased by, for example, a spring (not shown). In the first rod member 3 and the second rod member 4 having such a structure, the tip end portion 7a of the elastic member 7 of the first rod member 3 is inserted into the recess 10 of the second rod member 4, and the elastic member 7 The locking projections 11, 11 are provided in the locking recesses 8.
Are engaged with each other to be connected to each other.

When the jig 2 having the above structure is used to move the position of the conduit 1 upward, the construction is carried out as follows. As shown in FIG. 3, the pipeline 1 whose position is to be corrected has a constant length, for example, 200 to 60 in the ground.
A large number of fume tubes 12 having a tube diameter of about 0 mm are connected and configured, and each fume tube 12 is placed on a sleeper 14 installed on a concrete base 13, for example.

First, as shown in FIG. 1, in order to move the position of the conduit 1 downward, first, the cylindrical casings (cylindrical bodies) 15 having a diameter of about 100 mm are attached to the conduit 1.
It is driven in from the ground surface G on the both sides in the radial direction in the vertical direction, and its tip portions 15a, 15a are positioned in the vicinity of the duct 1.
Then, the first rod member 3 is inserted into the casing 15 on one side of the conduit 1 while sequentially connecting the extension rod 6 to the rear end of the rod 5. At this time, the insertion work of the first rod member 3 is performed by the rod insertion device M. The rod insertion device M is capable of automatically setting the insertion amount and the insertion angle of the rod to be inserted and automatically performing the insertion work. In this manner, when the first rod member 3 is inserted into the casing 15, the elastic member 7 fixed to the rod 5 is moved along the bottom surface of the pipe line 1 to the pipe line 1 and the base plate 1.
It enters the gap with 3. Then, when the tip portion 7a of the elastic member 7 reaches the other side of the conduit 1, the insertion of the first rod member 3 is stopped.

Next, the second rod member 4 is inserted into the casing 2 on the other side of the conduit 1 while connecting the extension rod 6 to the rear end of the connecting rod 9. Then, pipeline 1
2, the distal end portion 7a of the elastic member 7 of the first rod member 3 and the concave portion 10 of the second rod member 4 are disposed on the side of the second rod member 4.
Is inserted into the elastic member 7, and the locking recess 8 and the locking projection 1
1, 11 are engaged with each other, whereby the first rod member 3 and the second rod member 4 are connected to each other.

As shown in FIG. 4, after connecting the first rod member 3 and the second rod member 4 in this way, the hydraulic jacks 16 and 16 on the ground surface G, and the horizontal bridge installed thereon. Lifting device (lifting means) 18 including material 17
Set up. Then, the upper ends of the first rod member 3 and the second rod member 4 are fixed to the horizontal member 17 so that they do not move at least downward. Then, by a drive mechanism (not shown), the hydraulic jacks 16 of the lifting device 18,
16 is extended and the horizontal member 17 is raised. Then, the first rod member 3 and the second rod member 4, which are fixed to the horizontal member 17 and are connected to each other, ascend, whereby the pipe line 1 is suspended by these and moves upward. In this way, by extending the hydraulic jacks 16, 16 by a predetermined amount, the position of the pipeline 1 is corrected to a predetermined design position.

At this time, when the ground below the pipeline 1 is hard, the water jet device 19 is inserted from the ground surface G to the vicinity of the pipeline 1, and the jet portion 19a is positioned above the pipeline 1. Let Then, water is injected into the ground from the jet portion 19a of the water jet device 19. Then, pipeline 1
The ground above is softened, so that the lifting operation of the pipeline 1 by the lifting device 18 can be easily performed.

After this, the casing 15 and the conduit 1
Concrete is poured between the base 13 and the base 13 so that the position of the pipeline 1 moved upward is maintained.

In this way, the position correction work of the pipeline 1 can be carried out along the extending direction of the pipeline 1 at, for example, one or two locations for each fume tube 12 constituting the pipeline 1. By doing so, the position of the entire pipeline 1 can be set to a predetermined design position. Then, by removing the installed first rod member 3, second rod member 4, lifting device 18, etc. and returning them to the original state, the position correction work of the pipeline 1 is completed.

In the above-described method for correcting the position of the pipeline 1, the casings 15, 15 are arranged on both sides of the pipeline 1 in the radial direction from the ground surface G.
And insert the first rod member 3 into the casing 15 on one side to reach the other side along the bottom surface of the conduit 1 and insert the second rod member 4 into the casing 15 on the other side. Then, after engaging the first rod member 3 and the second rod member 4, these are lifted by the lifting device 18 by a predetermined amount. As a result, the conduit 1 moves upward and its position is corrected. In this way, the position of the conduit 1 is mechanically corrected by using the lifting device 18, so that the position of the conduit 1 can be finely adjusted, and the position of the conduit 1 can be corrected with high accuracy. . Further, for example, as shown in FIG. 6, since the construction can be performed without excavating the ground surface G, the pipeline 1 can be constructed in a water-passing state, and the vibration and noise during the construction can be greatly reduced. be able to. Further, since the construction is not a large-scale one, there is no need for a large machine, the occupation area is small, the construction cost is low, and the construction period can be greatly shortened. You can Further, since the construction is performed without using the chemical liquid, the upper structure is not damaged by the expansion of the chemical liquid and the groundwater is not contaminated unlike the case where the conventional chemical liquid is used. Further, when the ground above the pipeline 1 is hard, the ground can be softened by inserting the water jet device 19 into the ground and injecting water, whereby the position of the pipeline 1 can be easily corrected. Can be done. Moreover, since the casings 15 and 15 are driven into both sides of the pipe line 1 and the first rod member 3 and the second rod member 4 are inserted into the casings 15, 15, the insertion work can be easily performed. Further, when the concrete is poured into the gap between the pipeline 1 and the ground 13 after the pipeline 1 is raised, the concrete can be poured from the casings 15 and 15 and the construction is greatly facilitated. be able to.

In the above embodiment, the hydraulic jacks 16, 1 are used as lifting means for lifting the first rod member 3 and the second rod member 4 in order to raise the pipeline 1.
Although the lifting device 18 including the horizontal member 6 and the horizontal member 17 is used, the present invention is not limited to this.
Other means may be used as long as the second rod member 4 can be lifted. Further, although the example in which the pipeline 1 is placed on the sleeper 14 arranged on the foundation 13 in the ground is used, the same as above is also applied when the pipeline 1 is directly buried in the ground. The effect can be obtained. In this case, for example, a drill (not shown) is attached to the tip portion 7a of the elastic member 7 of the first rod member 3, and the first rod member 3 is inserted while excavating the ground with this drill (not shown). You can do this. Furthermore, casing 1
5 and 15 are configured to be driven vertically downward from the ground surface G, but one or both of these casings 15 and 15 are driven obliquely to the ground surface G, and thereafter, in the same manner as in the above embodiment. If constructed, the pipeline 1 can be moved diagonally upward to correct the position. Also in this case, the rod insertion device M can be used to insert the first rod member 3 and the second rod member 4.

[0022]

As described above, according to the pipeline position correcting method of the first aspect of the present invention, the tubular body is driven from the ground surface on both sides in the radial direction of the pipeline whose position is to be corrected. One rod member is inserted into the cylinder body on one side, the elastic member at the tip end thereof is made to reach the other side along the bottom surface of the conduit, and the other rod member is inserted into the cylinder body on the other side. After the one rod member and the other rod member are engaged with each other, they are hoisted by hoisting means. This allows
The line can be moved upwards to correct its position. Further, by driving the cylinder body obliquely, the pipe line can be moved obliquely upward to correct the position. In this way, since the position of the pipeline is mechanically corrected using the lifting means, it is possible to finely adjust the position of the pipeline.
The position of the pipeline can be corrected with high accuracy. In addition, since it can be installed without excavating the ground surface, it can be installed in a water-permeable state, and the vibration and
Noise can also be significantly reduced. Moreover, since the construction is not a large-scale one, a large machine is unnecessary.
The private construction area can be small, the construction cost is low, and the construction period can be greatly shortened. Further, since the construction is performed without using the chemical liquid, unlike the conventional case where the chemical liquid is used, the upper structure is not damaged by the expansion of the chemical liquid and the groundwater is not polluted.

According to the pipe position correcting method of the second aspect, when the ground on the side where the position of the pipe is to be corrected is hard, a water jet device is inserted into the ground to inject water. The ground can be softened, and thus the position of the pipeline can be easily corrected.

According to the jig used for correcting the position of the pipeline according to the third aspect, the jig used for correcting the position of the pipeline is composed of one rod member and another rod member. When is inserted from the ground surface, the elastic member at the tip portion thereof is deformed along the bottom surface of the conduit and reaches the other side.
Then, by inserting another rod member from the ground surface vertically above the other side and engaging these one rod member and the other rod member, the one rod member and the other rod member are Connected. Then, if both rod members are lifted, the pipeline can be lifted. Accordingly, the method for correcting the position of the pipeline according to claim 1 or 2 can be realized, and the construction can be easily performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a method of correcting a position of a pipeline according to the present invention,
FIG. 7 is a front cross-sectional view showing a state in which one rod member and another rod member are inserted on both sides of the pipeline.

FIG. 2 is a front view showing a joint state of one rod member and another rod member of the jig used for correcting the position of the conduit according to the present invention.

FIG. 3 is a side sectional view showing a buried state of a pipeline in the ground.

FIG. 4 is a diagram showing a method of correcting the position of a pipeline according to the present invention,
It is a front cross-sectional view which shows the state which hangs up a pipeline.

FIG. 5 is a side sectional view showing a pipeline buried in the ground.

FIG. 6 is a front sectional view showing an example of a conventional method for correcting the position of a pipeline.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipeline 2 Jig 3 1st rod member (one rod member) 4 2nd rod member (other rod member) 5 Rod (rod) 7 Elastic member 15 Casing (cylindrical body) 18 Lifting device (lifting means) 19 Water jet device G Ground surface

Claims (3)

[Claims] 1. A method for correcting the position of a conduit embedded in the ground, wherein cylinders are driven from the ground surface on both radial sides of the conduit whose position is to be corrected, and the cylinder on one side is formed. One rod member having an elastic member having flexibility at its tip is inserted into the body, and the tip of the rod is allowed to reach the other side along the bottom surface of the conduit. , After inserting the other rod member engageable with the tip end portion of the one rod member into the tubular body on the other side, and engaging the one rod member with the other rod member, A method for correcting the position of a pipeline, characterized in that both of these rod members are lifted by a lifting means. 2. The method for correcting the position of a pipeline according to claim 1, wherein a water jet device is inserted from the ground surface when the rod members are lifted, and the water jet device is used to adjust the position above the pipeline. A method for correcting the position of a pipeline, which comprises injecting water into the ground. 3. A jig for correcting the position of a pipeline embedded in the ground, the jig comprising one rod member and another rod member, and the one rod member. Is
A rod extending in one direction and a flexible elastic member attached to the tip of the rod, and the tip of the elastic member of the one rod member and the tip of the other rod member. A jig used for correcting the position of a pipeline, characterized in that