JP2544077B2 - Tunnel lining equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to a tunnel lining device.

[0002]

2. Description of the Related Art A conventional tunnel lining device is shown in FIGS. 6 and 7, wherein 1 is a shield, 2 is a gable frame ring, 3 is a hydraulic jack, and the gable frame ring 2 is attached to the shield 1. The moving member, 4 is a concrete placing pipe,
5 is an inner formwork, 7 is an outlet pipe which is attached to the gable frame ring 2 and has an opening 8, 19 is an opening and closing located between the concrete placing pipe 4 and the outlet pipe 7 and detachably connected to these Each device is shown. The opening / closing device 19 is a communication pipe detachably connected to the driving pipe 4 and the outlet pipe 7 as shown in FIG.
26 and a shielding member 22 which is slidably fitted in the cylinder 21 so as to be movable up and down and opens and closes the communication pipe 26.
22 is connected to a piston 23 provided inside the cylinder 21, and this piston 23 moves up and down by the pressure oil alternately supplied from the pressure oil pipes 24 and 25, and moves the shielding member 22 up and down to establish a communication pipe. It is designed to open and close 26. With such a structure, when lining the tunnel, the piston 23 is moved upwards to open the shielding member 22, and the shield 1 is propelled while passing through the casting pipe 4, the communication pipe 26, and the outlet pipe 7, and the concrete. And concrete is placed between the shield 1, the inner formwork 5 and the ground. When the concrete pouring is completed in this way, the supply of concrete is stopped,
When the piston 23 is moved downward to close the shielding member 22 as shown by the dotted line in FIG. 7 and the placing pipe 4 is removed from the communicating pipe 26, when the placed concrete is almost hardened and loses its fluidity, the shielding is performed. The member 22 is opened to clean the inside of the communication pipe 26 and the outlet pipe 7. Separately from this, when the pouring of concrete is interrupted, the shielding member 22 is provided so that the concrete poured by the earth pressure and water pressure of the natural ground does not flow backward from the outlet pipe 7 to the communicating pipe 26 and the placing pipe 4. Will continue to be supplied with a small amount of concrete.

[0003]

As described above, after the concrete is poured, the shielding member 22 is opened to open the communication pipe.
26. When cleaning the inside of the outlet pipe 7, after the concrete is completely hardened, the communication pipe 26 and the inside of the outlet pipe 7 are blocked by the hardened concrete, and conversely, in the uncured state. If there is fluidity, concrete will flow out from the communication pipe 26,
Since it is necessary to clean the concrete when it is not in such a state, it is extremely difficult to determine the cleaning work time.When the concrete is suspended, it is necessary to use concrete to counteract the earth pressure and water pressure of the natural ground. It must be placed under pressure, but if the time becomes longer, the communication pipe 2
6, the concrete in the outlet pipe 7 will be dehydrated and hardened, and they will be blocked, so the shield or the gable frame ring 2 must be constantly moved little by little while pouring the concrete in the meantime, The work is extremely complicated, and there is a problem that it is difficult to improve the construction efficiency due to these factors.

Therefore, it is an object of the present invention to solve the above-mentioned problems of the conventional tunnel lining device and to determine the time to clean the concrete left in the outlet pipe after the completion of pouring the concrete. Moreover, it is easy to clean the concrete left in the outlet pipe after the completion of the concrete pouring, and there is no need to supply the concrete when the pouring of the concrete is interrupted, which improves the construction efficiency. It is to provide the tunnel lining equipment that can.

[0005]

In order to achieve the above-mentioned object, the present invention provides a first aspect of the invention in which both surfaces are provided between the inner peripheral surface of the shield and the outer peripheral surface of the inner mold. A gable frame ring arranged in abutment with each other so as to be movable, a casting pipe detachably connected to an outlet pipe attached to the gable frame ring, and an actuating member attached to the shield to move the gable frame ring. In the tunnel lining device having the above, an opening / closing device for opening / closing the outlet of the outlet pipe is provided in the gable frame ring. According to a second aspect of the present invention, in the first aspect of the present invention, the opening / closing device is movably provided in a slotted hole provided in the end frame ring in the end frame ring, and the opening / closing plate. And an actuating member attached to the end frame ring for moving.

[0006]

In this invention as described above, when lining the tunnel, the opening / closing device is opened and concrete is placed between the inner formwork and the ground by the placing pipe, and the concrete is placed. After the completion, concrete feeding is stopped and the opening / closing device is closed, the casting pipe is removed from the outlet pipe, the concrete left in the outlet pipe is cleaned, and the like is repeated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first embodiment of the present invention shown in FIGS. 1 to 3, the same parts as those of the conventional one are designated by the same reference numerals, and the description thereof will be omitted. An opening / closing device 9 for opening / closing the opening 8 of the outlet pipe 7 is provided in the gable frame ring 2, and the opening / closing device 9 is provided with a slot 10 provided in a direction intersecting with the opening 8 and inside the slot 10. And an opening / closing plate 11 movably accommodated in the
An opening 12 which can be located at a position facing the opening 8 of the outlet pipe 7 at the time of pouring concrete and a slot 13 provided at a position separated from it in the longitudinal direction are provided in the slot 11. Racks 14 are provided on both inner edges in the longitudinal direction.
On the other hand, an actuating member 15 for moving the opening / closing plate 11 is provided on the gable frame ring 2, and a pinion 17 that engages with the rack 14 is provided on an actuating shaft 16 of the actuating member 15.
Is installed. A hydraulic pressure, an electric motor, or the like is used as the operating member 15.

When lining a tunnel with such a material, in the concrete pouring process,
The actuating member 15 provided on the end frame ring 2 is actuated, the pinion 17 attached to the actuating shaft 16 thereof is rotated, and the opening / closing plate 11 is moved through the rack 14 meshing with the pinion 17, , 3 as shown by the solid line, the openings 8 and 12 are aligned with each other to open the switchgear 9, and concrete is supplied through the casting pipe 4 and the outlet pipe 7 while propelling the shield 1 and inside the shield 1. Concrete is placed between the formwork 5 and the ground.
When the pouring of the concrete is completed in this manner, the feeding of the concrete is stopped, the actuating member 15 is actuated in the opposite direction to rotate the pinion 17 in the opposite direction, and the rack 14 is used. The opening / closing plate 11 is moved to the position shown by the chain line in FIG. 3, the opening 12 is moved to a position deviated from the opening 8 of the outlet pipe 7 and closed, and the driving pipe 4 is removed from the outlet pipe 7 and the outlet pipe 7 Clean the inside.

In the second embodiment of the present invention shown in FIGS. 4 and 5, the same parts as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. The different parts will be mainly described. The opening / closing device 9 for opening and closing the opening 8 of the outlet pipe 7 provided in the gable frame ring 2 has a curved long slot 10 provided in a direction intersecting with the opening 8 and is movably accommodated in the long slot 10. The flexible opening / closing plate 11 is provided, and the opening / closing plate 11 is provided with an opening 12 that can be positioned to face the opening 8 of the outlet pipe 7 when concrete is poured. The outer end is attached to the actuating rod 29 of the actuating member 15 which is a pressure cylinder provided on the end frame ring 2.

In such a concrete placing process, the actuating member 15 provided on the end frame ring 2 is actuated and the opening / closing plate 11 attached to the actuating rod 29 is moved downward in the concrete pouring process. The opening / closing device 9 is opened by aligning both openings 8 and 12, concrete is supplied through the mouth pipe 7, and concrete is placed between the shield 1, the inner formwork 5 and the ground. When the pouring of concrete is completed in this way, the supply of concrete is stopped, the actuating member 15 is actuated in the opposite direction to move the opening / closing plate 11 upward to the position shown by the chain line in FIG. Is closed from the opening 8 of the outlet pipe 7, and the driving pipe 4 is removed from the outlet pipe 7 to clean the inside of the outlet pipe 7.

By performing the concrete pouring according to the first and second embodiments as described above, it is not necessary to judge the cleaning time of the remaining concrete in the outlet pipe 7 after the concrete pouring is completed, and the concrete is not required. In addition to the fact that it is not necessary to supply concrete at the time of suspending the pouring, the cleaning work of the remaining concrete in the outlet pipe after the pouring of the concrete is easily performed.

[0012]

The present invention is as described above, and the invention of claim 1 is movably disposed between the inner peripheral surface of the shield and the outer peripheral surface of the inner mold by contacting both surfaces thereof. A gable frame ring, a casting pipe detachably connected to the outlet pipe attached to the gable frame ring, and an actuating member attached to the shield to move the gable frame ring are provided. Since the opening and closing device that opens and closes the outlet of the outlet pipe is provided, it is not necessary to judge the time to clean the concrete remaining in the outlet pipe after the completion of pouring the concrete, and it is necessary to supply the concrete when the pouring of the concrete is interrupted. In addition to this, there is an effect that the cleaning work of the concrete left in the outlet pipe after the pouring of the concrete is easy, and the construction efficiency can be improved from these. The invention of claim 2 is the same as the invention of claim 1,
The opening / closing device is an opening / closing plate movably provided in a slotted hole provided in a direction crossing the outlet pipe in the gable frame ring, and an operating member attached to the gable frame ring for moving the opening / closing plate. Since it has, there is an effect that it has a simple structure, does not require a particularly difficult operation, and is inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view showing an inner formwork of a first embodiment of the present invention by a chain line.

FIG. 2 is a vertical cross-sectional view showing a state of a driving pipe in the end frame ring of the above.

FIG. 3 is a sectional view taken along line 3-3 of the above.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 5 of the second embodiment of the present invention.

FIG. 5 is a left side view of the above.

FIG. 6 is a perspective view similar to FIG. 1 of a conventional tunnel lining device of the same type as the present invention.

FIG. 7 is a longitudinal sectional view of a part of the above.

[Explanation of symbols]

 1 shield 2 gable frame ring 3 actuating member 4 casting pipe 5 inner formwork 7 outlet pipe 8 opening 9 opening / closing device 10 long groove hole 11 opening / closing plate 12 opening 13 long groove hole 14 rack 15 working member 16 working shaft 17 pinion

Claims (2)

(57) [Claims] 1. A gable frame ring movably arranged in contact with both surfaces between an inner peripheral surface of the shield and an outer peripheral surface of the inner formwork, and attached to and detached from an outlet pipe attached to the end frame. In a tunnel lining device having a driving pipe that is operably connected and an actuating member that is attached to a shield and moves a gable frame ring, an opening and closing device that opens and closes the outlet of the outlet pipe is provided in the gable frame ring. Tunnel lining device characterized by 2. A gable frame ring movably arranged in contact with both sides between the inner peripheral surface of the shield and the outer peripheral surface of the inner formwork, and attached to and detached from the outlet pipe attached to the grate frame ring. In a tunnel lining device having a driving pipe that is operably connected and an actuating member that is attached to a shield and that moves the end frame ring, a long groove provided in the end frame ring in a direction intersecting with the outlet pipe. An opening / closing plate movably provided in the hole,
A lining device for a tunnel, comprising: an actuating member attached to a gable frame ring for moving the opening / closing plate.