JPH08326012A - Concrete pavement system - Google Patents

Abstract

PURPOSE: To execute concrete continuously from let-off to finishing by installing a belt conveyor for let-off, a rod-shaped vibrator device, a roughly levelling screw, etc., while being crossed at right angles in the direction of execution in order from the front side. CONSTITUTION: A belt conveyor 7 for let-off is supplied with concrete and let off while being shuttled, and a rod-shaped vibrator device 8 is moved vertically while being made to travel and concrete C is compacted. Concrete pavement is molded in a cross section having an inclination close to a necessary subbase-course concrete cross section by a roughly levelling screw 9. Excess concrete C is pushed up to an inclined upper section easy to be in short supply at that time. The cant section of the subbase-course concrete cross section formed by the roughly levelling screw 9 is molded finally by a scraping-up device 10. Excess concrete in scraped-up concrete is pushed out forward by an earth-removing plate pusher at that time. Excess concrete is compacted by a vibrator plate 11, and finished by a crowbar by a finisher plate 12.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a concrete paving system having a cant portion.

[0002]

2. Description of the Related Art Conventionally, roadbed concrete for road tunnels has been placed using a roadbed concrete construction machine. In this machine, it is good if the tunnel is not curved, but at the curved portion, the roadbed cants in proportion to the degree of the curve, so as shown in FIG. , C are constructed first, and then the cant part b is constructed. Further, the cant of the cant portion b continuously changes, but in the conventional construction, only the cant can be attached every 20 m, for example.

Further, in the construction of the cant portion b, since the construction machine for sprinkling out the concrete first and the machine for constructing the cant portion after the machine are configured as different machines, the operator, the work It took a lot of staff.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a concrete pavement system in which both horizontal portions and cant portions are simultaneously and continuously constructed from the sprinkling of concrete to the finishing while continuously changing the cant amount. It is intended to be provided.

[0005]

According to the present invention, the central passage side of the main body frame is supported on the central passage side rail by the central passage side saddle and the central passage side saddle drive device, and the main body frame tunnel wall side is supported. Supported on the wall-side rail by the wall-side saddle and the wall-side saddle drive device, a belt conveyor for squeezing out in a direction orthogonal to the construction direction in order from the construction direction front side to the main body frame, a rod-shaped vibrator device, a coarse equalizing screw, a scraping device, A vibrator plate and a finisher plate are arranged.

Further, according to the present invention, the wall side rail is detachably attached to the tunnel wall via the rail bracket, and the rail bracket is provided with the level adjusting mechanism and the wall side rail sliding mechanism.

[0007]

In the concrete pavement system configured as described above, the level of the main body frame is adjusted by both drive devices. Then, the equipment was moved forward, and the concrete from the truck mixer was sprinkled out to a predetermined place by the sprinkling belt conveyor, compacted by the bar-shaped vibrator device, and the roughening screw was used to give a slope close to the required roadbed concrete section. Form on the surface. Then, the cant portion is finally molded by a scraping device, the final concrete is compacted and slagged by a vibrator plate, and finally, a gold iron finish is performed by a finisher plate.

After cleaning the apparatus, the main body is jacked up, the rail on the wall side is floated from the rail bracket and supported by a rail sliding mechanism, the rail is pulled by a winch, and the rail bracket is attached to the front tunnel wall in advance. Transfer to and fix.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4, an auto finisher embodying the present invention comprises a body frame 1, a pair of center passage side saddles 2 for supporting the center passage side rail 20 side of the body frame 1 on the rail 20, and The center passage side saddle drive device 3 and the side wall W of the tunnel T of the main body frame 1
A pair of wall-side saddles 5 and wall-side saddle drive devices 6 that support the sides on wall-side rails 21 provided along the side walls W;
A spreading belt conveyor 7, a bar-shaped vibrator device 8, a coarse leveling screw 9, and a scraping device 1, which are arranged on the main body frame 1 in this order from the front side in the working direction in a direction orthogonal to the working direction.
0, the vibrator plate 11 and the finisher plate 12, the earth plate pushing device 13 provided on the central passage side saddle 2 side of the scraping device 10, and the pair of central passage side saddle drive devices 3 provided on the side wall W side. It is composed of In the figure, reference numeral 14 is a control panel, and 15 is a cable reel.

Both the driving devices 3 and 6 can be automatically and manually moved forward, only manually moved backward, and the speed can be arbitrarily set.

The sprinkling belt conveyor 7 is a device for sprinkling the concrete discharged from the truck mixer truck, and can be sprinkled out at an arbitrary position in the longitudinal direction by a slide mechanism (not shown).

The bar-shaped vibrator device 8 is a device for compacting concrete sprinkled out on the conveyor 7. A plurality of vibrators (not shown) are provided, and the number, operation and stop time of the vibrators can be arbitrarily set. .

The coarse smoothing screw 9 is a device for roughly smoothing the concrete compacted by the rod-shaped vibrator device 8, and can be set to forward rotation, reverse rotation, and forward / reverse rotation by a timer as desired.

The scraping device 10 is a device for forming concrete roughly smoothed by the rough smoothing screw 9 in a setting cant, and the scraping speed can be arbitrarily set.

The vibrator plate 11 is a device for compacting the surface of the concrete formed by the scraping device 10. A plurality of surface vibrators (not shown) are provided, and the number of the vibrator plates 11 can be set arbitrarily.

The finisher plate 12 is a device for finishing the surface of concrete whose surface is compacted by the vibrator plate 11.

The soil discharging plate pushing device 13 is a device for pushing the surplus concrete scraped up by the scraping device 10 to the front surface.

In the vibrator plate 11 and the finisher plate 12, the left and right horizontal parts a and c are divided into three parts, that is, the left and right horizontal parts a and c and the central cant part b (FIG. 5). A plate that is vertically driven to the left and right by a ball screw (not shown) and a linear guide (not shown) enable linear movement in the left and right directions.

The central cant portion b is pin-connected at the central portion, and the left and right horizontal portions a and c are connected by pin connection and spring connection. As a result, the left and right horizontal parts a and c are always kept horizontal even when the cant part b is cantized, and the cant forming control is possible.

The action jacks 4 and 4 are provided above the wall-side saddles 5 and 5. When the drive devices 3 and 3 are moved up and down, an inclinometer (not shown) provided on the central passage side is activated to operate the devices. The whole is moved up and down by a slight amount (for example, 50 mm). This function is used at the start of concrete pouring, when running finished concrete and when cleaning equipment.

The central passage side rail 20 is formed in a channel shape and is laid in the center of the bottom of the tunnel T.

The wall side rail 21 is supported on the side wall W of the tunnel T via a rail bracket 22.
A roller (not shown) is provided on the bracket 22 so as to be retractable by a wall-side rail sliding mechanism (not shown), that is, a screw mechanism, and the bracket 22 and the rail 21 are detachably fixed by a stop bullman (not shown). Further, the rail bracket 22 is provided with a level adjusting mechanism and a moving cam follower (not shown).

Next, the mode of construction will be described.

At the time of construction, a belt conveyor 7 for spreading
To supply concrete from a truck mixer truck.
The conveyor 7 scoops out the concrete C to a predetermined place while shuttled, and while the device is running, the rod-shaped vibrator device 8 is moved up and down to compact the concrete C.

Next, the roughening screw 9 is used to form a section having an inclination close to the required section S of the roadbed concrete. At this time, the excess concrete C is pushed up to the inclined upper part which tends to be insufficient while pushing the entire surface.

Next, the scraping device 10 performs the final shaping of the carton portion b of the roadbed concrete section S formed by the roughening screw 9. At this time, the excess of the concrete that has been scraped off is removed by the soil discharge plate pushing device 1
It is pushed forward by 3.

Then, the vibrator plate 11 is used to perform final concrete compaction and slag removal of the roadbed concrete section S with a surface vibrator.

Finally, the finisher plate 12 finishes the state formed by the vibrator plate 11 with a metal trowel as a mold for stabilizing the concrete to some extent.

In the above construction, the device drives both saddles 2 and 5 by both saddle drive devices 3 and 6 to drive both rails 2
Drive over 0 and 21. The traveling speed is arbitrarily set by inverter control.

Control of the above construction is performed as follows. (1) The reference level of construction, the rail 21 on the wall side, and the center of left and right construction is determined by the rail 20 on the central passage. The wall side rail 21
Is laid on the same slope as the tunnel T. This level adjustment is performed by adjusting the rail level by the level adjusting mechanism of the rail bracket 22.

(2) Level control The level of the main body frame 1 is adjusted by vertically adjusting the front and rear wheels of the central passage side saddle drive device 3, respectively.
The wall-side saddle drive device 6 is adjusted to be horizontal with respect to the front and rear wheels. Thereby, the posture of the main body frame 1 is horizontally controlled with respect to the wall-side rail 21.

(3) Cant forming control The tunnel running position is obtained by the encoder, the cant amount is calculated, and the cant amounts of the vibrator plate 11 and the finisher plate 12 are controlled by driving a ball screw and a linear guide.

The setup change is performed as follows. (1) Cleaning work After the roadbed concrete pouring work is completed, raise the level of the main body frame 1 and move it forward to perform the cleaning work.
For leveling up the body frame 1 for this purpose, the wall side saddle drive device 6 is leveled up by several tens of mm by jacking up the action jack bodies 4 and 4. By this operation, the wheels of the central passage side saddle drive device 3 are also leveled up by several tens of mm by the above-mentioned main body horizontal level control.

(2) Rail transfer work After the cleaning work is completed, the main body frame 1 is lifted by several tens of mm by a main body manual jack (not shown). Therefore, the Bullman of the rail bracket 22 is loosened and removed. Then
A roller is projected by a screw mechanism to support the wall-side rail 21, and the rail 21 is floated by several tens of mm. After performing this work on all rail brackets 22,
The front end portion of is pulled by a winch and transferred to the front rail bracket 22 which is preset.
Therefore, after the rail 21 is moved to a predetermined position, the bullman of the rail bracket 22 is fixed and the rail 21 is fixed.

[0036]

EFFECT OF THE INVENTION Since the present invention is constructed as described above, it is possible to consistently change the amount of cant between the horizontal part and the cant part at the same time and continuously, from the sprinkling of concrete to the finishing. It is possible to reduce the number of workers, shorten the construction period including the reduction of setup change, reduce the cost, and ensure the quality.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a side view illustrating a construction mode.

FIG. 4 is a front view of FIG.

FIG. 5 is a drawing showing an example of a cross section of roadbed concrete.

[Explanation of symbols]

 a, c ... Horizontal part b ... Cant part C ... Concrete S ... Roadbed concrete section T ... Tunnel W ... Side wall 1 ... Main body frame 2 ... Central passage side saddle 3 ... Central passage side saddle drive device 4 ... Action jack 5 ... Wall side saddle 6 ... Wall side saddle drive device 7 ... Winding belt conveyor 8 ... Rod-shaped vibrator device 9 ... ..Coarse smoothing screw 10 ... Rapping device 11 ... Vibrator plate 12 ... Finisher plate 13 ... Exhaust plate pushing device 14 ... Control panel 15 ... Cable reel 20 ... Central passage side rail 21 ... Wall side rail 22 ... Rail bracket

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masatoshi Omori 6-3-1, Toyo, Koto-ku, Tokyo Kashima Construction Co., Ltd. Kanto Branch (72) Inventor Noboru Kinsei 6-3, Toyo, Koto-ku, Tokyo No. 2 Kato Construction Co., Ltd. in the Kanto Branch (72) Inventor Keiji Kondo 6-3, Toyo 6-3, Toyo, Koto-ku, Tokyo Kashima Construction Co., Ltd. in the Kanto Branch (72) Inventor Kohei Mio Hajime Akasaka, Minato-ku, Tokyo 1st-5th Fuji-in Building Kajima Mechatro Engineering Co., Ltd. (72) Inventor Masaaki Sato 1-5-1 Moto-Akasaka, Minato-ku, Tokyo Fujiin Building Kajima Mechatro Engineering Co., Ltd. (72) Inventor Kikuchi Shigeru Moto-Akasaka 1-1-5, Minato-ku, Tokyo Fujiin Building Kajima Mechatro Engineering Co., Ltd.

Claims (2)

[Claims] 1. A central passage side of a main body frame is supported on a central passage side rail by a central passage side saddle and a central passage side saddle drive device, and a tunnel wall side of the main body frame is supported by a wall side saddle and a wall side saddle drive device. Supporting on the wall side rails, the main body frame is provided with a belt conveyor for spreading, a bar-shaped vibrator device, a roughening screw, a scraping device, a vibrator plate and a finisher plate in order from the front side in the working direction in a direction orthogonal to the working direction. Concrete pavement system. 2. The concrete according to claim 1, wherein the wall-side rail is detachably attached to the tunnel wall via a rail bracket, and the rail bracket is provided with a level adjusting mechanism and a wall-side rail sliding mechanism. Pavement system.