JP2003020895A - Hume pipe for pipe jacking method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent increase of a propulsive force, to enable acceleration of a propulsion speed, to lessen the effect of land subsidence, an unbalanced earth pressure, propulsion meandering or others and thereby to realize propulsion according to a design. SOLUTION: A pipeline body fitting groove 2 of a prescribed depth is provided in the outer peripheral surface of a barrel part. For a Hume pipe for propulsion having a plurality of discharge parts 5 formed in the direction of the axis of the pipe, a pipeline body 4 having discharge ports A and B so provided in the direction reverse to the direction of propulsion as to correspond to the discharge ports 5 and having a plurality of pipelines 3 which supply first and second liquids of a lubricant separately and are connected in parallel in the direction of the axis of the pipe, is provided in the direction reverse to the direction of propulsion in succession to the pipeline-body fitting groove 2. First injection ports supplying the first liquid are provided on one side of the center of the pipeline body 4, while second injection ports supplying the second liquid are provided on the other side, and communication holes for the first and second liquids are provided in the prescribed pipelines 3. Furthermore, a cover body 7 is disposed in the shape of eaves on the upper side of the pipeline body 4, with the same face as the outside diameter of the Hume pipe. The two-part lubricant is supplied separately by the pipelines 3 of two systems and the first and second liquids of the lubricant are discharged simultaneously to the discharge ports 5 and mixed to react with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-component sliding material which becomes a gel-like sliding material due to a chemical change when mixed from a propulsion pipe used for construction work of an underground structure and capable of long-distance propulsion. The present invention relates to a fume pipe for a propulsion method that supplies materials separately.

[0002]

2. Description of the Related Art The quality of work for injecting a lubricant not only affects the propulsion speed and distance, but also affects ground subsidence, uneven earth pressure, meandering, and the like. Conventionally, when the frictional resistance between the ground and the propulsion pipe becomes large, the jack end is damaged due to the jack thrust, and the propulsion cannot be performed. Therefore, in order to reduce the frictional resistance between the ground and the propulsion pipe, as shown in FIG. 23, the excavator A equipped with the lubricant material pouring mechanism C is arranged at the forefront of the propulsion direction in the propulsion pipe line d. The lubricant is poured from the lubricant pouring mechanism C into the gap between the propulsion pipe B and the soil g to promote the friction resistance between the ground and the propulsion pipe B while lowering the friction resistance value. In addition, a method of rotating and joining the injection holes h for each connecting pipe, injecting the lubricant through the respective injection holes h, and spreading the lubricant over the entire circumference of 360 degrees (see FIG. 2).
4)). Further, there is a construction method (Fig. 25) in which a plurality of injection holes h are provided all around the pipe, and the lubricant is supplied from the plurality of injection holes h to spread the lubricant over the entire circumference (Fig. 25). It was a system for supplying a one-component lubricant.

[0003]

However, the above conventional techniques have the following problems. (1) Long-distance propulsion is required even for a small-diameter propulsion pipe B that is difficult for people to enter inside, but it is not possible to attach a lubricant hose to the small-diameter propulsion pipe and supply the lubricant. In addition, the lubricant pouring function C can be attached only to the leading excavator, and cannot be attached to the pipeline along the way. Therefore, the pouring mechanism for pouring out the lubricant can only be equipped with the leading excavator, and a gelled two-liquid lubricant has been used to maintain the effect of the lubricant for a long time. It was However, there is only one slipping material pouring mechanism on the excavator at the head of the pipeline, so depending on the condition of the sand on the side wall of the propulsion pipe, the slipping material that has poured out permeates into the ground and slips smoothly. The effect as a material disappears, and a large propulsive force acts on the propulsion pipe. Therefore, there is a problem that the propulsion pipe bursts and the construction is interrupted on the way. (2) If the gel time is shortened in order to avoid penetration into the natural ground, the lubricant will spread only near the discharge holes, and the effect of the lubricant will not be fully exerted. Therefore, there is a problem that the propulsion pipe bursts and the construction is interrupted on the way. (3) In the case of Fig. 24 above, since the placement position of the injection hole changes for each pipe to be joined, it is necessary to rotate the pipe at the time of construction, and the lubricant is injected from each injection hole provided separately. However, there is a problem that the work is troublesome. (4) In the case of FIG. 25 described above, in order to enhance the effect, a large number of injection holes are provided in the tubular body, but this causes a problem that the tubular body strength is weakened. In addition, it is necessary to inject the lubricant through the injection holes that are arranged apart from each other, which is troublesome. (5) When a one-liquid lubricant is supplied, the viscosity of the lubricant is soft, and the lubricant thus supplied permeates into the ground at the outer peripheral portion of the pipe, and the effect of the lubricant is lost. Then, there is a problem that a large propulsive force acts on the propulsion pipe and the pipe is damaged, so that the construction is interrupted midway. In addition, the supplied lubricant penetrates into the ground at the outer peripheral portion of the pipe, which requires a large amount of lubricant, resulting in a high construction cost. (6) Two-component lubricants are mixed in advance and one system of delivery pipe (pipe line)
If you try to deliver by, there is a problem that it becomes gelled during delivery and it becomes impossible to deliver. The present invention has been invented to solve the above-mentioned problems, and two-liquid lubricants are supplied through two separate pipelines, and both liquids are discharged through discharge ports to effectively apply the lubricant to the ground. To reduce the frictional resistance between the ground and the fume pipe for propulsion to prevent an increase in propulsion force and accelerate the propulsion speed.In addition, the effects of ground subsidence, uneven earth pressure, propulsion meandering, etc. The aim is to provide a fume tube for the propulsion method that can be propelled as designed by minimizing the number.

[0004]

In order to achieve the above object, the fume pipe for propulsion method according to the first aspect of the present invention is provided with a pipe body mounting groove 2 having a predetermined depth on the outer peripheral surface of the body portion. In the conduit flute 1 of the propulsion fume pipe 1 in which a plurality of discharge portions 5 are formed in the direction opposite to the propulsion direction following the conduit body mounting groove 2, a plurality of conduit body mounting grooves 2 are provided. A plurality of conduits for separately supplying the first liquid 6 and the second liquid 61 of the two-liquid lubricant, which are provided with the discharge holes A and B in the direction opposite to the propelling direction so as to correspond to the discharge port 5.
A pipe body 4 in which 3 are arranged in parallel in the pipe axial direction is arranged, a first injection port 63 for supplying the first liquid 6 is provided on one side of the center of the pipe body 4, and a first injection port 63 is provided on the other side. A second inlet 64 for supplying the two liquids 61 is provided, a communication hole 65 for the first liquid and the second liquid is provided in the predetermined pipe line 3, and the upper surface of the pipe body 4 is provided with a propulsion fume pipe. The cover body 7 is arranged in an eaves shape so as to be flush with the outer diameter,
The two-liquid lubricant is separately supplied through two lines of the pipeline 3, and the first liquid 6 and the second liquid 61 of the lubricant are simultaneously discharged to the discharge port 5 and mixed to react both liquids. I am trying.

The invention of the fume tube for propulsion method according to claim 2 is that the first inlet 63 and the second inlet 64 of claim 1 are:
It is characterized in that the passage 67 is provided by attaching the auxiliary pipe 66.

The invention of the fume tube for propulsion method according to claim 3 is characterized in that the discharge port 5 according to claim 1 is annularly provided on the entire circumference in the circumferential direction.

The invention of the fume pipe for propulsion method according to claim 4 is, in the conduit body mounting groove 2 according to claim 1 or 3, the first to fourth exhaust pipes provided at four locations at equal intervals in the circumferential direction. Exit 51,5
The second liquid 6 and the second liquid 61 of the two-component lubricant can be separately discharged from the pipes 3 of the two systems from 2, 53, 54, and the first discharge port 51 at the top position is opposite to the propulsion direction. The rear end of the semicircular pipe provided with the discharge hole Al for discharging the first liquid in the direction of the first discharge port 5
The first pipe line 31 formed integrally with the rear end of the semicircular pipe line provided with the discharge hole Bl for discharging the second liquid in a circular shape and the second discharge line at the intermediate height position. A semicircular second conduit 3 in which a discharge hole A2 for discharging the first liquid and a discharge hole A3 for discharging the first liquid 6 to the third discharge port 53 are provided in the outlet 52 in the direction opposite to the propelling direction.
2, the discharge hole B2 for discharging the second liquid to the second discharge port 52, and the third
The third duct 33 having a semi-circular shape in which the discharge hole B3 for discharging the second liquid is provided in the discharge port 53 of the No. 3 and the fourth discharge port 54
A pipe body 4 in which a discharge hole A4 for discharging the first liquid 6 and a discharge hole B4 for discharging the second liquid 61 are connected in parallel in parallel with a fourth pipe path 34 provided in the direction opposite to the propulsion direction. It is characterized by being arranged.

The invention of the fume pipe for propulsion method according to claim 5 is the fume pipe for propelling method according to claim 1 or 3, wherein the pipe passage mounting groove 2 has five first to fifth discharges provided at equal intervals in the circumferential direction. Exits 51, 52,
53, 54, 55 to the first liquid 6 and the second liquid 61 of the two-liquid lubricant
Can be separately discharged from the two lines 3 of the semicircular line having the discharge hole Al for discharging the first liquid 6 in the direction opposite to the propulsion direction at the first discharge port 51 at the top position. A first conduit 31 in which the rear end and the rear end of the conduit having a discharge hole Bl for discharging the second liquid 61 to the first discharge port 51 are abutted and integrally formed
And the discharge hole A2 for discharging the first liquid 6 to the second discharge port 52 and
A second conduit 32 having a discharge hole A3 for discharging the first liquid 6 to the second discharge port 52 and a discharge hole B2 for discharging the second liquid 61 to the second discharge port 52. And the second liquid 6 in the third outlet 53
No. 3 with a discharge hole B3 for discharging 1 in the direction opposite to the propulsion direction
The conduit 33, the discharge hole A4 for discharging the first liquid 6 to the fourth discharge port 54, and the discharge hole A5 for discharging the first liquid 6 to the fifth discharge port 55 are provided in the direction opposite to the propelling direction. Fourth conduit 34 and fourth outlet 5
4, a discharge hole B4 for discharging the second liquid 61 and a discharge hole B5 for discharging the second liquid 61 to the fifth discharge port 55 are arranged in parallel with the fifth pipe line 35 in the direction opposite to the propulsion direction. It is characterized in that the pipe line body 4 connected with each other is provided.

According to the invention of the fume pipe for propulsion method of claim 6, the discharge holes A1, A are provided in the conduit body mounting groove 2 of claim 3.
2, A3, A4, B1, B2, B3, B4, B5 are arranged in the circumferential direction at a plurality of places at equal intervals, so that the discharge holes Al are provided at one end in the direction opposite to the propulsion direction. A first conduit 31 for discharging the first liquid 6, and a second conduit 32 for discharging the second liquid 61 having discharge holes B 1 and B 2 at both ends in a direction opposite to the propulsion direction,
First with discharge holes A2 and A3 at both ends in the direction opposite to the propulsion direction
A third conduit 33 for discharging the liquid 6 and discharge holes B3, B4 at both ends.
The second liquid 61 provided in the direction opposite to the propulsion direction for discharging the second liquid 61
The pipe line body 4 in which the pipe line 34 and the fifth pipe line 35 for discharging the first liquid 6 provided with the discharge hole A4 at the one end in the direction opposite to the propulsion direction are sequentially arranged in parallel and connected to each other are arranged. It is characterized by having done.

The invention of the fume pipe for propulsion method of claim 7 is the discharge holes A, A1, A of claim 1 or 4 or 5 or 6.
2, A3, A4, A5, B, B1, B2, B34, B5 are equipped with a check valve 4a which is opened by the injection force only when the first liquid 6 or the second liquid 61 is ejected on the outer surface. I am trying.

[0011]

The two-component lubricant can be supplied through two separate pipelines, both liquids can be discharged at the outlet and reacted to be effectively injected into the ground. The frictional resistance between the ground and the fume tube for propulsion is reduced to prevent an increase in propulsion force, and the propulsion speed can be accelerated, and the effects of ground subsidence, uneven earth pressure, propulsion meandering, etc. are minimized. Can be promoted. In addition, four first to fourth discharge ports 51, 52, 53, which are provided at equal intervals in the circumferential direction,
From 54, the first liquid 6 and the second liquid 61 are separately discharged from the two conduits 3. Further, the first liquid 6 and the second liquid 61 are separately discharged from the two lines 3 from the five discharge ports 51, 42, 43, 54, 55 provided at equal intervals in the circumferential direction. Further, when the discharge port 5 is formed in an annular shape in the circumferential direction, since each discharge hole is arranged at a plurality of positions at equal intervals in the circumferential direction, the first liquid 6 and the second liquid 61 are separated into two systems. It is discharged from the conduit 3 of. Further, the discharge holes A, A1, A2, A3, A4, A5, B, B1, B2, B3.
On the outer surface of B5, a check valve 4a that is opened by the injection force only when the first liquid 6 or the second liquid 61 is ejected is attached to prevent each discharge hole from being blocked by the two-liquid lubricant. ing. Since the two-component lubricant has a predetermined gel time and cannot be mixed and conveyed in advance, it is mixed and reacted immediately after being discharged from the discharge hole. Further, since there are two injection ports for supplying the two-component lubricant, the two-component lubricant can be easily injected at one place without the need for moving work. Even if one of the pipelines becomes clogged, the other pipelines will not be affected and will be uniformly discharged from the entire circumference of the propulsion fume pipe. And
When the two-component lubricant is supplied to the entire circumference of the propulsion fume tube, the frictional resistance between the natural fume tube and the propulsion fume tube is reduced to prevent an increase in propulsion force and to accelerate the propulsion speed. In addition, the effective action of the two-component lubricant allows the propulsion method as designed to be obtained by minimizing the effects of ground subsidence, uneven earth pressure, propulsion meandering, and the like. Further, it becomes possible to enhance the adaptability to curve propulsion, and the supply of the lubricant is ensured at the time of injecting the two-component lubricant, so that it can effectively function for waterproofing and road subsidence.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention are shown in FIGS.
Will be described. First, as shown in FIGS.
The propulsion fume tube 1 has a collar 11 at one end in the tube axial direction.
Are integrally provided, and the joint portion 12 is formed at the other end,
Reference numeral 13 is a concrete portion of the fume tube 1 for propulsion. Further, a conduit body mounting groove 2 having a predetermined depth is provided on the outer peripheral surface of the body portion 14 of the propulsion fume pipe 1 near the joint portion 12, and the propulsion direction is continuous with the conduit body body mounting groove 2. In the opposite direction, a plurality of discharge parts 5 are formed in the tube axis direction. The conduit body mounting groove 2 may be arranged at any position as long as it is the body portion 14. In the conduit body mounting groove 2, discharge holes A and B are provided in a direction opposite to the propulsion direction so as to correspond to a plurality of discharge ports 5.
A pipe line body 4 is provided in which a plurality of pipe lines 3 for separately supplying the first liquid 6 and the second liquid 61 of the lubricant are connected in parallel in the pipe axial direction. A first inlet 63 for supplying the first liquid 6 is provided on one side of the center of the base portion 3a of the conduit body 4, and a second inlet 64 for supplying the second liquid 61 is provided on the other side. In addition, the predetermined conduit 3 is provided with a communication hole 65 for the first liquid and the second liquid. Further, a cover body 7 is arranged on the upper surface of the conduit body 4 in a manner to be flush with the outer diameter of the fume pipe for propulsion, and two liquid lubricants are separately supplied through the conduits 3 of two systems. The first liquid 6 and the second liquid 61 of the material are discharged to the discharge port 5 at the same time and mixed to react both liquids. In addition, as in the embodiment of FIGS. 11 to 13, the embodiment of FIGS. 14 to 16, the embodiment of FIGS. 17 to 19 and the embodiment of FIGS. 20 to 22, the first injection port 63,
An auxiliary pipe 66 is attached to the second injection port 64 to provide a passage 67, and the injection port 63 and the second injection port 64 are provided at each one position for convenience of workability. Furthermore, the outlet 5 is
As shown in FIGS. 7 to 9, it is provided in an annular shape around the entire circumference. The first liquid 6 and the second liquid 61 of the two-component lubricant
Is a two-component consolidated lubricant that reacts with the two liquids to form a gel, or a two-component consolidated plasticizer that also reacts with the two liquids and solidifies to form a lubricant. Is. The composition of this two-component consolidated plasticizer is water glass, water glass base for the first liquid,
A liquid containing sodium bicarbonate as a main component is used. The pipe lines 3, 31, 32, 33, 34, 35 are pipes having a rectangular cross section or a circular cross section. In the case of a rectangular cross section pipe, the height is 14 mm to 19 mm and the circular cross section is used. In the case of, the diameter of about 20 mm is used. Discharge holes A, A1, A2, A3, A4, A5 for the first liquid 6
And the discharge holes B, B1, B2, B3, B4, B5 of the second liquid 61 are preferably arranged at a distance of at least about 40 mm.
The communication hole 65 in the conduit may be a long hole or a circular hole. The cover body 6 is preferably a cylindrical iron plate.

Next, a first embodiment of the conduit body 4 will be described with reference to FIGS. In the conduit body mounting groove 2, four first to fourth discharge ports 51, 52, 5 are provided at equal intervals in the circumferential direction.
The first liquid 6 and the second liquid 61 from 3,54 are separately provided in the two lines 3
From the rear end of the semi-circular pipe line provided with a discharge hole Al for discharging the first liquid in the direction opposite to the propulsion direction at the first discharge port 51 at the top position, and the first discharge port 51. The first conduit 31 integrally formed in a circular shape by abutting the rear end of the semicircular conduit having the discharge hole Bl for discharging the second liquid, and the second discharge outlet at the intermediate height position. 52, the discharge hole A2 for discharging the first liquid and the first
A second circular conduit 32 having a semicircular shape in which a discharge hole A3 for discharging the first liquid 6 is provided in the discharge port 53 of 3 in the direction opposite to the propulsion direction, and the second discharge port 5
A second semicircular pipe line 33 having a discharge hole B2 for discharging the second liquid in 2 and a discharge hole B3 for discharging the second liquid in the third discharge port 53 in the direction opposite to the propulsion direction, A pipe in which a discharge hole A4 for discharging the first liquid 6 and a discharge hole B4 for discharging the second liquid 61 are connected to the discharge port 54 of the fourth pipe line 34, which are arranged in parallel in this order. A road body 4 is provided. The arrows in FIG. 4 indicate the positions of the discharge holes A1, A2 ..., B1, B2 ... And the discharge direction. This also shows the discharge position and the discharge direction of the discharge holes A1, A2 ..., B1, B2 ... In FIGS. The first embodiment of the conduit body 4 is also applied to the fume tube 1 for propulsion method in which the discharge port 5 is annularly provided in the entire circumference in the circumferential direction as shown in FIG.

A second embodiment of the conduit body 4 will be described with reference to FIGS. In the pipe body mounting groove 2, 5 provided at equal intervals in the circumferential direction
1st to 5th discharge ports 51, 52, 53, 54, 55 to 1st liquid
6 and the second liquid 61 can be separately discharged from the two conduits 3
A rear end of a semicircular pipe having a discharge hole Al for discharging the first liquid 6 in a direction opposite to the propelling direction is provided at the first discharge port 51 at the top position, and a second discharge port is provided at the second discharge port 51. Discharge hole for discharging the liquid 61
No. 1 formed by butt-joining the rear end of the pipeline with Bl
1 pipe line 31, a discharge hole A2 for discharging the first liquid 6 to the second discharge port 52, and a discharge hole A3 for discharging the first liquid 6 to the second discharge port 52
The second pipe 32 provided in the direction opposite to the propulsion direction, the discharge hole B2 for discharging the second liquid 61 to the second discharge port 52, and the third discharge port 53.
A third conduit 33 in which a discharge hole B3 for discharging the second liquid 61 is provided in the reverse direction to the propulsion direction, and a discharge hole A4 and a fifth discharge hole for discharging the first liquid 6 in the fourth discharge port 54. A fourth pipe line 34 in which a discharge hole A5 for discharging the first liquid 6 is provided in the outlet 55 in a direction opposite to the propulsion direction,
A discharge hole B4 for discharging the second liquid 61 to the discharge port 54 and a discharge pipe B5 for discharging the second liquid 61 to the fifth discharge port 55 in the direction opposite to the propulsion direction. A conduit body (4) is arranged which is connected in parallel in order. The second embodiment of the conduit body 4 is also implemented in the fume tube 1 for propulsion method in which the discharge port 5 is annularly provided on the entire circumference in the circumferential direction as shown in FIG.

A third embodiment of the conduit body 4 will be described with reference to FIGS. The third embodiment of this conduit body 4, as shown in FIG.
It is carried out on the fume pipe 1 for propulsion method in which the discharge port 5 is provided in an annular shape all around the circumference. Each of the discharge holes in the conduit body mounting groove 2
A, A1, A2, A3, A4, B, B1, B2, B3, B4, B5
In order to arrange every other one at equal intervals in the circumferential direction, the first conduit 31 for discharging the first liquid 6 having the discharge holes Al provided at one end in the direction opposite to the propulsion direction, and both ends The second conduit 32 for discharging the second liquid 61 having the discharge hole B 1 and the discharge hole B 2 in the opposite direction to the propelling direction, and the discharge hole A 2 and the discharge hole A 3 at both ends in the opposite direction to the propelling direction. Third pipe 3 for discharging the first liquid 6 provided in the
3, the fourth conduit 34 for discharging the second liquid 61 having the discharge holes B3 and the discharge holes B4 at both ends in the direction opposite to the propulsion direction, and the discharge hole A4 at the one end in the direction opposite to the propulsion direction. The pipe body 4 in which the fifth pipe 35 for discharging the first liquid 6 provided in the direction is connected in parallel in order.
Is provided. As shown in FIG. 3, the discharge holes A, A
1, A2, A3, A4, A5, B, B1, B2, B3, B4, B
On the outer surface of 5, a check valve 4a that is opened by the injection force only when the first liquid 6 or the second liquid 61 is ejected is attached. Further, as shown in FIG. 10, the injection ports 63, 64 are formed in a cylindrical shape, and a screw S is provided on the inner peripheral surface thereof.
4 is connected to a supply hose 81 provided with a nipple 8 at its tip, and is connected to a pump (not shown) for the first liquid 6 and the second liquid 61 to ensure that the first liquid 6 and the second liquid 61 are each liquid. Supplied in conduit 3 of.

[0016]

Since the present invention is configured as described above, it has the following effects. (1) Supply the two-component lubricant from each pipeline separately in two lines, and simultaneously discharge the two-component lubricant through the separate outlets of the pipelines arranged at the outlets through the outlets. Since the reaction is performed, the first liquid and the second liquid of the two-liquid lubricant are discharged and mixed to form a gel. Therefore, the lubricant is unlikely to penetrate into the ground at the outer peripheral portion of the pipe unlike the conventional one-component lubricant. Although it depends on the soil quality, the one-component lubricant is generally easily absorbed by the ground. However, the first liquid and the second liquid of the two-liquid lubricant discharged from the separate injection ports provided at the discharge port chemically react at the discharge port and harden into a gel, and are evenly distributed around the outer periphery of the propulsion pipe. Can be crossed. Further, since the amount of lubricant used can be reduced, the construction cost can be reduced. (2) Even if one-liquid lubricant is supplied from the lubricant supply pipe installed at the tip of the propulsion pipe, the viscosity of the lubricant is soft. Since it penetrates into the inside, the construction method of setting the lubricant supply pipe again several times behind the most advanced lubricant supply pipe is unnecessary, and the construction can be cheaper accordingly. (3) When multiple outlets are provided in the circumferential direction, the two-component lubricant outlets are placed in the same outlet, and more than one is placed in the circumferential direction, so the two-component lubricant is ejected. At the same time, it becomes easier to mix, and at the same time, the filling can be done evenly in the circumferential direction, so the effect of the lubricant can be maximized. (4) When a solid ground such as gravel layer exists in the propulsion pipeline,
A more effective long-distance propulsion can be achieved by setting the lubricant supply pipe again a few tubes behind the most advanced lubricant supply pipe. (5) Since there are two injection ports for supplying the two-component lubricant, the lubricant can be easily injected at one place without the need for moving work. Further, even if an accident such as clogging occurs in one of the pipelines, it does not affect the other pipelines, so that the two-component lubricant is uniformly discharged from the entire circumference of the propulsion fume pipe. (6) By conveying the first and second liquids of the two-liquid lubricant from the two spouts, the lubricant can be injected at one place, and the two-liquid lubricant can be evenly distributed over the entire circumference from the discharge hole. Since it can be supplied, the lubricant can be evenly discharged and supplied to the outer peripheral surface of the fume tube for propulsion during the construction work by the propulsion method. (7) When the two-component lubricant is supplied to the entire circumference of the propulsion fume tube, the frictional resistance between the natural fume tube and the propulsion fume tube is reduced to prevent an increase in propulsion force and accelerate the propulsion speed. . (8) Due to the effective function of the two-part lubricant, the propulsion method as designed can be obtained by minimizing the effects of ground subsidence, uneven earth pressure, propulsion meandering, etc. (9) Since the lubricant is reliably supplied when the two-component lubricant is injected, it can effectively function for waterproofing and road subsidence. (10) It is possible to prevent ground soil from entering the discharge port and filling the discharge port during work, and the two-component lubricant can be discharged uniformly.

[Brief description of drawings]

1] Front view of a propulsion fume tube

FIG. 2 is a sectional view taken along the line aa of the first embodiment.

FIG. 3 is a sectional view of a discharge port portion.

FIG. 4 is a development view of the pipe body according to the first embodiment when it is linearly extended.

FIG. 5 is a cross-sectional view taken along the line bb of the pipe body according to the second embodiment.

FIG. 6 is a development view of the conduit body of the second embodiment when it is linearly extended.

FIG. 7 is a front view of a propulsion fume tube in which a discharge port is formed around the entire circumference in the circumferential direction.

FIG. 8 is a sectional view taken along line c-c of the pipe body according to the third embodiment.

FIG. 9 is a development view of the conduit body of the third embodiment when it is linearly extended.

FIG. 10 is an explanatory diagram when a supply pipe is connected to the inlet.

FIG. 11 is a top view of the inlet of the first embodiment of the pipe body.

FIG. 12 is a front view of the inlet of the pipe body according to the first embodiment.

FIG. 13 is a sectional view of the inlet of the first embodiment of the conduit body.

FIG. 14 is a top view of the inlet.

FIG. 15 is a front view of the inlet.

FIG. 16 is a sectional view of the inlet.

FIG. 17 is a top view of the inlet.

FIG. 18 is a front view of the inlet.

FIG. 19 is a sectional view of the inlet.

FIG. 20 is a top view of the inlet.

FIG. 21 is a front view of the inlet.

FIG. 22 is a sectional view of the inlet.

FIG. 23 is an explanatory view of a conventional propulsion fume tube.

FIG. 24 is an explanatory view of a conventional propulsion fume tube.

FIG. 25 is an explanatory view of a conventional propulsion fume tube.

[Explanation of symbols]

1 Hume tube for propulsion 11 colors 12 joints 13 Concrete section 14 torso 2 Pipe body mounting groove 3 pipelines 31 first conduit 32 Second pipeline 33 Third Pipe 34 Fourth Pipe 35th conduit A, A1, A2, A3, A4, A5 discharge holes (of the first liquid) B, B1, B2, B3, B4, B5 discharge holes (for second liquid) 4 pipe body 5, 51, 52, 53, 54, 55 outlet 6 first liquid 61 Second liquid 63,64 inlet 65 communication holes 66 Auxiliary pipe 67 passage 7 cover body

Claims (7)

[Claims] 1. A pipe passage mounting groove having a predetermined depth is provided on the outer peripheral surface of the body portion, and a plurality of discharge portions are provided in the pipe axial direction in the direction opposite to the propulsion direction following the pipe passage mounting groove. The first liquid and the second liquid of the two-component lubricant having the discharge holes formed in the direction opposite to the propulsion direction in the conduit body mounting groove of the formed propulsion fume pipe corresponding to the plurality of discharge ports. A pipe line body is provided in which a plurality of pipe lines for separately supplying the two liquids are connected in parallel in the pipe axial direction, and a first inlet for supplying the first liquid is provided on one side of the center of the pipe line body. A second inlet for supplying the second liquid is provided on the other side, a communication hole for the first liquid and the second liquid is provided in the predetermined pipe line, and the propulsion fume is provided on the upper surface of the pipe body. The cover body is arranged in an eaves-shape so as to be flush with the outer diameter of the pipe, and the two-liquid lubricant is separately supplied through two lines of the pipe, and the first liquid and the second liquid of the lubricant are simultaneously supplied to the discharge port. Discharge and mix to react both solutions Hume pipe jacking method for causing. 2. The fume pipe for propulsion method according to claim 1, wherein auxiliary pipes are attached to the first inlet and the second inlet to provide passages. 3. The fume pipe for a propulsion method according to claim 1, wherein the discharge port is provided in an annular shape around the entire circumference. 4. The first liquid and the second liquid of the two-component lubricant are separately provided from the first to fourth discharge ports at four locations provided at equal intervals in the circumferential direction in the pipe body mounting groove. It can be discharged from two lines
A rear end of a semicircular pipe having a discharge hole for discharging the first liquid in a direction opposite to the propulsion direction at the first discharge port at the top position;
The first is integrally formed into a circular shape by abutting the rear end of a semicircular pipe having a discharge hole for discharging the second liquid at the discharge port of
The pipe and the second discharge port at the intermediate height position are provided with a discharge hole for discharging the first liquid and a discharge hole for discharging the first liquid at the third discharge port in a direction opposite to the propelling direction. A semicircular shape with a circular second pipe line, a discharge hole for discharging the second liquid to the second discharge port, and a discharge hole for discharging the second liquid to the third discharge port in the direction opposite to the propelling direction. A third pipe line, a discharge hole for discharging the first liquid and a discharge hole for discharging the second liquid are provided in the fourth discharge port in the direction opposite to the propulsion direction.
The fume pipe for a propulsion method according to claim 1 or 3, wherein a pipe body is provided in which the pipe lines of 4 are connected in parallel in order. 5. The first liquid and the second liquid of the two-component lubricating material are separately provided from the first to fifth outlets at five locations provided at equal intervals in the circumferential direction in the pipe body mounting groove. A rear end of a semi-circular pipe having a discharge hole for discharging the first liquid in a direction opposite to the propulsion direction at the first discharge port at the top position so as to be discharged from the two lines
The first pipe line formed by butting the rear end of the pipe line provided with the discharge hole for discharging the second liquid at the second discharge port, and the discharge hole for discharging the first liquid at the second discharge port A second pipe line having a discharge hole for discharging the first liquid to the discharge port of 2 in the direction opposite to the propelling direction, and a discharge hole for discharging the second liquid to the second discharge port and a third discharge port A third conduit having a discharge hole for discharging the second liquid in a direction opposite to the propelling direction, a discharge hole for discharging the first liquid through the fourth discharge port, and a first liquid through the fifth discharge port A fourth pipe line with a discharge hole that is opposite to the driving direction, a discharge hole that discharges the second liquid to the fourth discharge port, and a discharge hole that discharges the second liquid to the fifth discharge port are driven. The fume pipe for propulsion method according to claim 1 or 3, wherein a pipe body is provided in which a fifth pipe line provided in a direction opposite to the direction is arranged in parallel and connected in order. 6. The pipe passage mounting groove is provided with a plurality of discharge holes at equal intervals in the circumferential direction, so that the discharge holes are provided at one end in a direction opposite to the propulsion direction. 1st pipe line for discharging 1 liquid, 2nd pipe line for discharging 2nd liquid provided with discharge holes at opposite ends in the opposite direction to the propulsion direction, and discharge holes at both ends for opposite direction to the propulsion direction A third pipe line for discharging the first liquid, a fourth pipe line for discharging the second liquid provided at both ends with discharge holes in a direction opposite to the propelling direction, and a discharge hole at one end. The fume tube for propulsion according to claim 3, wherein a pipe body is provided in which a fifth pipe line for discharging the first liquid, which is provided in a direction opposite to the propulsion direction, is arranged in parallel and connected in order. 7. A check valve, which is opened by an injection force only when the first liquid or the second liquid is ejected, is attached to the outer surface of each discharge hole. Hume pipe for the propulsion method described.