JPH02164999A - Hume concrete pipe and manufacturing device thereof for method of propulsion construction - Google Patents

Abstract

PURPOSE:To contrive the reduction of friction resistance with the natural ground by forming in the periphery of a Hume concrete pipe a lubricant circulating hole communicating with a lubricant injection hole, mounting to a groove wall an angular cylindrical coating member having a communication hole communicating with the lubricant circulating hole and forming the groove wall in a rear side into a rising slope. CONSTITUTION:A Hume concrete pip 1 forms in its periphery an endless lubricant circulating groove 3 mounting in a ring shape along a groove wall a steel- made angular cylindrical coating member 7, coating lubricant injection holes 2a, 2b, providing through holes 8, 9 to be drilled. While the lubricant circulating hole 3 is formed into a recessed groove shape, and its rear side groove mold 4 is formed as a slope rising from a lower end part 5 toward an upper end part 6 in the point end of the Hume concrete pipe 1. And a lubricant, even when it is injected from the single lubricant injection hole 2a, is uniformly distributed to the peripheral surface. Thus, the lubricant can be distributed even to the rear side of the Hume concrete pipe in its propulsion direction.

Description

[Detailed Description of the Invention] [Table of Contents Overview Industrial Application Fields Prior Art Problems to be Solved by the Invention Means for Solving the Problems Working Examples] Man's Communication Power Song Dynasty [Summary] The present invention , underground walkways, 1-Sewerage etc., regarding the manufacturing equipment for Huno pipes and Huyum pipes used for the j1# Shin construction method in the construction of underground structures such as underground walkways, 1-Sewage systems, etc. Add lubricant to the surface and move it uphill.
Not only can you greatly increase the speed of advance, but you can also prevent the ground from sinking.
・＼ Unbalanced earth pressure, Jl
One of our objectives is to provide a pipe for the J11 construction method, which is easy to manufacture, can be mass-produced, and has a low manufacturing cost, and an apparatus for manufacturing the same.

The hume pipe for the propulsion method of the present invention is a river hume pipe using the 111 method in which a lubricant injection hole is bored on the outer circumferential surface, and the lubricant flow is formed in a link shape over the outer circumference of the hume pipe and communicates with the lubricant injection hole. The groove wall is a substantially rectangular cylindrical covering member having a groove formed in the lubricant distribution groove, and having a communication hole that covers the lubricant injection hole and communicates from the lubricant injection hole to the cylindrical groove. The rear vortex wall of the slipping material distribution groove is formed into a -1-angled inclined surface from the lower end toward the -1-1 end when viewed from the tip side of the hume tube. It is configured.

Further, the apparatus for producing a hull or pipe for a propulsion method according to the present invention includes an outer formwork having a cylindrical shape, and an IJO formed in a cone tress shape along the inner peripheral surface of the outer formwork.
a substantially rectangular cylindrical covering 813; a ring-shaped groove forming member provided on the covering member and formed in an inclined surface toward the inner circumferential surface of the outer form from the end side; a cylindrical injection hole forming member whose one end in the longitudinal direction is attached to the inner circumferential surface and cut out; and the covering portion I.
A and a fastener for fixing the injection hole forming member to the outer frame, and the covering member extends from the injection hole forming member side to the groove forming part It.
It has a communication hole that communicates with 1llll+, and is configured so that the tightening formwork and the groove forming member can be separated after filling.

[Industrial Application Field] The present invention relates to a hume pipe and a hume pipe manufacturing apparatus used for the +11 construction method in the construction of underground structures such as underground walkways and water and sewerage systems.

[Technology from tL] In the I11 construction method, when the frictional resistance between the other heap and the hume pipe for the propulsion method becomes small, the jack thrust causes the hyu 1
One tube may be damaged and propulsion may become impossible.

Therefore, in order to reduce the frictional resistance between the ground and the hump pipe,
It is common practice to provide a lubricant injection hole on the outer circumferential surface of the hume pipe, and to inject the lubricant into the ground through this injection hole.

The quality of this lubricant injection work not only affects the propulsion speed, but also affects ground subsidence, uneven earth pressure, propulsion meandering, etc.

Therefore, conventionally, the number of lubricant injection holes has been increased,
Alternatively, without increasing the number of lubricant injection holes, the amount of lubricant injection may be increased from the predetermined lubricant injection holes, so that the lubricant can be evenly distributed on the outer circumferential surface of the hume pipe. has been done.

Therefore, the inventor of the present application has discovered that it is possible to uniformly spread the lubricating material on the outer circumferential surface of the hume pipe during construction work using the propulsion method, thereby not only increasing the propulsion speed, but also preventing ground subsidence and uneven earth pressure. We have developed a humuum pipe for propulsion construction methods that can adequately handle propulsion meandering, etc., and have already applied for it (Utility Application 1986-3).
No. 2466).

[Problem to be solved by the invention] However, in the previously applied Huyum pipe for the propulsion method, when pushing the pipe into the ground, the 1% formed on the outer periphery
There were cases where sand etc. got into the N4"tsi passage groove and the slipping material distribution groove became narrow.

Therefore, it is conceivable to attach a covering member to the outer periphery of the hem pipe to cover the distal end side of the first flow groove.

However, when attaching the covering member, the covering part (") must be attached after the pipe is manufactured, which creates problems such as complicating the work process and increasing production costs. I;

The present invention has been devised in view of the problems listed below, and the first object of the present invention is to supply lubricant more evenly to the outer circumferential surface of the hume pipe during construction work using the propulsion method. To provide a hume pipe for a propulsion method and a manufacturing device thereof that can not only greatly increase the propulsion speed but also sufficiently cope with ground subsidence, unbalanced pressure, propulsion meandering, etc.

In addition, the second object of the present invention is that when pushing the hump pipe into the ground, it is possible to prevent the groove from becoming narrow due to dirt entering the groove. The hume tube for the propulsion method and its ili! are easy to manufacture and can be mass-produced, and the manufacturing cost is low. The purpose is to provide manufacturing equipment.

[Means for Solving the Problems] The 11F suspension pipe for the propulsion method of the present invention has a lubricant injection hole bored on the outer circumferential surface, and a ring cane is provided over the outer periphery of the pipe. None, a lubricant distribution groove is formed that communicates with the lubricant injection hole, and within the lubricant distribution groove, a communication hole is provided that covers the lubricant injection hole and communicates from the side material injection hole to the lubricant distribution groove. A substantially rectangular cylindrical covering member is attached in an endless manner along the groove wall, and the rear groove wall of the slipping material distribution groove extends upward from the lower end toward the end when viewed from the distal end side of the humid tube. It is characterized by being formed on an inclined surface.

Furthermore, the apparatus for producing a hume pipe for propulsion construction method according to the present invention includes a cylindrical outer formwork, and an endless shape 1-1' formed along the inner circumferential surface of the outer formwork.
a substantially rectangular cylindrical covering member that is attached to the covering member; a ring-shaped groove forming member that is attached to the covering member and whose one end side is formed into an inclined surface toward the inner peripheral surface of the outer form; The covering includes a cylindrical injection hole forming member whose one longitudinal end side is joined and cut out, and a fastening tool for fixing the covering member and the injection hole forming member to an outer mold. The member has a communication hole that communicates from the injection hole forming member side to the groove forming part H side, and after filling the conc J-1, the tightening tool, the outer form, and the groove forming member can be separated. It is characterized by

[Function] According to the hume pipe for the propulsion method of the present invention, the lubricant can be distributed more uniformly around the hume pipe without being affected by earth and sand in the ground, so that the lubricant can work effectively. By doing so, it is possible to reduce the frictional resistance between the ground and the hump pipe, not only preventing a reduction in the propulsion force but also increasing the propulsion speed, and minimizing the effects of ground subsidence, uneven earth pressure, meandering of propulsion, etc. Can be made smaller.

Furthermore, according to the hume tube manufacturing apparatus for the propulsion method of the present invention, since the hume tube equipped with the covering member can be manufactured integrally, the manufacturing process is not complicated, and it is fully compatible with mass production. This allows production costs to be kept low.

[Example] Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

Figures 1 to 5 show the hume pipe for the propulsion method of the present invention.

Two lubricant injection holes 2a and 2b are bored in the outer peripheral surface of the hume pipe 1 for the propulsion method.

At the position of the lubricant injection hole 2a on the distal end side, a lubricant distribution groove 3 communicating with the lubricant injection hole 2a and having an endless shape extending around the outer periphery of the hume tube 1 is formed.

A ring-shaped covering member 7 is provided in the lubricant distribution groove 3 along the groove wall to cover the lubricant injection hole 2a. The covering member 7 is made of steel and has a substantially rectangular cylindrical shape, and the outer circumferential surface of the covering member 7 is flush with the outer circumferential surface of the tube.

As shown in FIGS. 3 and 4, a through hole 8 communicating with the lubricant injection hole 2a and a through hole 9 communicating with the lubricant distribution groove 3 are bored in the solid portion of the covering member 7. ing.

Therefore, when the lubricant is injected from the C1C1 lubricant flow 1 flow 2a, the lubricant flows through the hollow part of the covering member 7 into the lubricant flow groove 3.

Further, as shown in FIG. 4, a plurality of anchor reinforcements 10 may be arranged around the covering member 7 for reinforcement.

By the way, the lubricant distribution hole 3 is formed in a substantially concave spiral shape as shown in FIGS. It is formed with an upward slope f1 toward the upper end portion 6.

In addition, in this embodiment, the lubricant distribution groove 3 and the covering member 7 are provided at the drilling position of the lubricant injection hole 2a on the front end side, but the present invention is not limited to this. The lubricant injection hole 3 and the covering member 7 may be provided at the drilling position of the lubricant injection hole 2b.

Next, referring to FIG. 5, FIG. 1, and FIG. 3, the state of use of the hume tube of the present invention will be explained.
The pipe is pushed into the ground 13 while continuing... to construct a prescribed underground pipeline. When pushing the Huyum pipe 1 into the ground 13, the frictional resistance with the ground 13 is reduced, and the propulsive force is increased. In order to increase the speed, the lubricant 14 is injected between the earth 13 and the hump pipe 1 through the lubricant injection holes 2a and 2b.

At this time, the lubricant 1 injected from the lubricant injection hole 2a on the tip side
4 is released from the lubricant injection hole 2a and turns over the inside of the state flow groove 3 which is in communication with the lubricant injection hole 2a, whereby the lubricant 14 flows between the ground 13 and the humid pipe l. It will be uniformly injected between the outer peripheral surface and the outer peripheral surface.

Therefore, the slide 1 14 acts effectively, speeding up the propulsion speed of the hump pipe 1 without slowing it down, and causing propulsion meandering etc. without being affected by ground subsidence or uneven earth pressure. Not at all.

In addition, since the covering member 7 is removed and installed along the groove wall in the slip material distribution groove 3, when the humid pipe 1 is pushed into the other pipe 13, earth and sand etc. are removed inside the slip material distribution groove 3. It is possible to prevent the lubricant from entering the groove and filling up the lubricant distribution groove 3.

In addition, the slipping material 14 can be spread around the entire circumference of the circulation groove 3, and the slipping material 14 can be spread to the rear side in the direction of propulsion of the hue 11 pipe 1, thereby reducing the frictional resistance of the ground 13. There is an advantage in that it can be further reduced and the speed of the propulsive force can be further increased.

By the way, the rear side groove wall 4 of the slipping material distribution groove 3 is formed into a 1-slanted surface extending from the lower end 5 toward the -1-1 end 6. For this reason, the resistance by the groove wall 4 in the direction of propulsion of the hume tube 1 is minimized,
As the humid pipe 1 moves forward, the lubricant 14 moves to the ground 1.
3. It is a comb that leaves enough residue.

Next, FIGS. 6 to 8 show an apparatus for manufacturing a hume pipe for propulsion construction according to the present invention.

The cylindrical outer formwork 15 is divided into arc-shaped plates 15a, and adjacent plates 15a, 15a are connected by a connecting member 24.

A ring-shaped, substantially rectangular cylindrical covering member 16 is arranged on the inner peripheral surface of the outer formwork 15, and a ring-shaped groove forming member 17 is attached integrally with the outer formwork 15 adjacent to the covering member 16. .

Inside the covering member 16, there are cylindrical injection hole forming portions +, l.
' A is attached, and one end in the longitudinal direction of the injection hole forming member A is in contact with the inner circumferential surface of the covering member 16 .

The covering member 16 and the injection hole forming member A are
It is fixed to the outer formwork 15 by fasteners 21.

By the way, the covering member 16 attached along the inner circumferential surface of the outer formwork is formed to have a hollow cross section as described above, and has n through holes on the injection hole forming member A side and the groove forming member 17 side. 2
5.26 is provided, so the injection hole forming part 10, 4
The A side and the γM forming portion 10, 417 are arranged to communicate with each other.

: A through hole 27 for passing the fastener 21 is also bored on the outer form frame 15 side of the fffllNJ16, and this through hole 27 shall be closed after the fastener 21 is removed.

Further, the groove forming member 17 attached to the covering portion (A16) is formed into an inclined surface toward the inner circumferential surface of the formwork 15, with one end facing downward.

In the embodiment shown in the figure, the injection hole forming member A is composed of a collar 8, an iron vibrator 19, and a cone 20.
The collar 18 and the iron vibrator 19 are buried by screwing together the tip of the tool 21, but the present invention is not limited to this, and the cone 20 alone may be used.

FIG. 8 shows an example of a mode in which the covering member 16 is fixed to the outer formwork 15.

That is, the nut 22 is welded and fixed to the side surface of the covering member 16, and the bolt 23 inserted from the outer formwork 15 side is screwed onto the nut 22ζ, so that the covering member 16 is supported by the nut 22 and the bolt 23. ing.

Nala!・22 is fill-in, bolt 2; 3 is outer formwork 1
5 is removed before demolding.

In the configuration described above, the cylindrical outer form 15 is rotated by a centroid separator, and concrete 2 is added to the outer form 15.
Filling the day.

After concrete curing, the fastener 21 and cone 20 are
Then, the bolts 23 are removed and the outer formwork 15 is demolded.

Note that since the groove forming member 17 is attached integrally with the outer frame 15, it is removed from the mold together with the outer frame 15.

[Effects of the Invention] The present invention has the following configuration. The hume pipe for the propulsion method according to the present invention is provided with a link-shaped lubricant distribution groove formed on the outer periphery of the hume pipe, and the lubricant flow groove is formed on the outer periphery of the hume pipe. By removing a substantially rectangular cylindrical covering member in the groove, which has a link shape along the groove wall and has a communicating hole that communicates from the lubricant injection hole to the lubricant distribution groove, one slide can be formed. Also by injecting the lubricant from the material injection hole, the lubricant is evenly distributed over the outer peripheral surface of the hume tube.

Moreover, since the covering member is removed along the groove wall (1 inch) in the slip 4A distribution groove, there is a risk that the ground may enter the slip material distribution groove during work and narrow the slip material distribution groove. In addition, the lubricant can be turned over the entire circumference of the lubricant distribution groove, and the lubricant can be distributed to the rear side in the direction of propulsion of the hume pipe.

Therefore, since the frictional resistance between the hump tube and the other mountains can be significantly reduced, the propulsion speed can be further increased, the amount of advancement per day increases, and the cost of operation can be reduced.

In addition, the effective action of the slipping material can reduce the effects on ground settlement, eccentric pressure, propulsion meandering, etc.

In addition, in the apparatus for producing a fume pipe for the propulsion method of the present invention, the covering member is attached to the inner circumferential surface of the cylindrical outer form, and the groove forming member is removed adjacent to the covering member. Arranging the injection hole forming member on the inner peripheral surface of the member, fixing the covering member and the injection hole forming member to the outer formwork with a fastener,
The fastener, the groove forming member, and the outer formwork can be removed after filling with concrete.

Therefore, when manufacturing the fume pipe, it is possible to install the covering member and form the lubricant injection hole and the lubricant distribution groove at the same time, so the manufacturing process can be quickly purified, making it suitable for mass production. Cost can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the hume pipe for the propulsion method according to the present invention, Fig. 2 is an enlarged plan view thereof, Figs. 3 and 4 are enlarged sectional views of main parts of Fig. 2, and Fig. 5 is the invention of the present invention. Figure 6 is a side view showing the manufacturing equipment for hume pipes for the propulsion method according to Figure 5.
-1 line sectional view, and FIG. 7 is a sectional view taken along the II line in FIG. l... Huyum tube 2a, 2 b... Tidal wood? 1゛Inlet hole 3...Sliding material distribution groove 4...Rear side gutter wall 5...Lower end of rear side gutter wall 6...Upper end of rear side gutter wall 7...Coating section A 8...Through hole 9... 4 holes 10...Anchor bar 11...Starting station 12...Propulsion shank 13...Other threads 1 ll ・ ・ ) Phrenology 15...Outer formwork 15 a...Temporary (] 1G...Coating part month 17... Vortex forming member 18 ・ 19 ・ 20 ・ 2 work ・ 22 ・ 23 ・ 24 ・ 25 ・ 26 ・ 27 ・ 28 ・ ・Collar・Iron vibrator・Cone・Fastening tool・Nut・Pol I・・Connection member・Through hole/through hole/through hole/concrete

Claims (2)

[Claims] (1) In a Hume pipe for propulsion construction in which a lubricant injection hole is bored on the outer circumferential surface, a lubricant distribution groove is formed in a ring shape over the outer circumference of the Hume pipe and communicates with the lubricant injection hole, and the lubricant is In the circulation groove, a substantially rectangular cylindrical covering member that covers the lubricant injection hole and has a communication hole that communicates from the lubricant injection hole to the lubricant distribution groove is installed in an endless manner along the groove wall, A Hume pipe for a propulsion method, characterized in that the rear side groove wall of the lubricant distribution groove is formed to have an upward slope from the lower end toward the upper end when viewed from the tip side of the Hume pipe. (2) A cylindrical outer form; a substantially rectangular cylindrical covering member attached endlessly along the inner circumferential surface of the outer form; and a covering member attached to the covering member, one end of which is inside the outer form. a ring-shaped groove forming member formed in an inclined surface toward the circumferential surface; a cylindrical injection hole forming member attached with one longitudinal end side attached to the inner circumferential surface of the covering member; and the covering member; and a fastener for fixing the injection hole forming member to the outer formwork, the covering member has a communication hole communicating from the injection hole forming member side to the groove forming member side, and after filling with concrete,
A manufacturing device for a Hume pipe for a propulsion method, characterized in that a fastener, an outer form, and a groove forming member can be separated.