JPH09203300A - Structure of excavated soil-sand deposit facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open and close the soil-sand charging port of a covering plate without taking time. SOLUTION: In this excavated soil-sand deposit facility 10, a covering plate 22 is installed to the upper section of an excavated soil-sand stockyard 1, and rails 23, 23 for the travelling of a shuttle car 4 are mounted on the covering plate 22. A soil-sand charging port 2 is formed to the covering plate 22 under the rails 23, 23 for charging excavated soil and sand 6 discharged from the shuttle car 4 to the excavated soil-sand stockyard 1, and a shutter 31 opening and closing the soil-sand charging port 21 and an air cylinder 34 driving the shutter 31 are set up on the lower side of the soil-sand charging port 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an excavated earth and sand placing facility, and more particularly to a structure of an excavated earth and sand placing facility that inputs excavated earth and sand from a shuttle car or the like to an excavated earth and sand placing place provided at a tunnel excavation site or the like. Regarding

[0002]

2. Description of the Related Art For example, an excavated earth and sand storage facility is provided at a tunnel excavation site. Then, the earth and sand excavated in the tunnel is transported to the earth and sand storage site of the excavated earth and sand storage facility by, for example, a shuttle car and discarded. This excavated sediment storage facility is usually installed at a location lower than the track for running the shuttle car so that a large amount of sediment can be placed in the sediment storage area. Further, in order to simplify the facility, the earth and sand discharged from the shuttle car are directly put into the excavated earth and sand storage site as described below.

That is, a lining plate is arranged above the excavated earth and sand storage site, and a shuttle car orbit is provided on the lining plate so that the shuttle car can enter above the excavated earth and sand storage site. Further, the sediment discharge port of the shuttle car is at the bottom of the vehicle body, and the sediment discharged from this place is put into the excavated sediment storage site. A slot is provided.

On the other hand, since the worker may walk on the lining plate, it is necessary to take a fall prevention measure at the earth and sand input port. However, since the earth and sand loading port is located below the track on which the shuttle car runs, it is not possible to provide a handrail or the like.
Therefore, conventionally, a lid has been provided at the earth and sand input port, and the lid is opened only when the earth and sand are input.

[0005]

However, in the case where the lid is provided at the earth and sand loading port as in the conventional case, the lid cannot be opened when the shuttle car reaches the top of the lid. Therefore, stop the shuttle car just before the earth and sand inlet, the driver descends from the shuttle car and opens the lid, and then operates the shuttle car again to connect the earth and sand outlet of the shuttle car to the earth and sand inlet of the lining plate. Had to put it on. Furthermore, after the earth and sand were thrown in, the shuttle car driver had to repeatedly get in and out, such as moving the shuttle car from above the earth and sand inlet and closing the lid again, which was very troublesome. .

The object of the present invention is to solve the above problems, and the structure of an excavated earth and sand placing facility capable of opening and closing the earth and sand inlet of the lining plate without trouble. To provide.

[0007]

The present invention is a structure of a facility for excavating earth and sand, and is configured as follows in order to solve the above-mentioned technical problems. That is, the structure of the excavated earth and sand storage facility of the present invention has a gantry installed in the excavated earth and sand storage site,
A track for running the vehicle is provided on the lining plate provided on the gantry,
In the structure of the excavated earth and sand placing facility that puts the excavated earth and sand discharged from the earth and sand carrier traveling on the track into the excavated earth and sand storage site, the earth and sand input port provided on the lining plate under the track and the earth and sand input It is characterized in that it is provided with an opening / closing means attached to the lower side of the mouth to open / close the earth and sand inlet, and a driving means for driving the opening / closing means. Hereinafter, each component will be described. (Sediment input port) The earth and sand input port targeted by the present invention has an appropriate size so that the earth and sand can be easily discarded, and facilitates the input of the earth and sand discharged from the earth and sand carrier to the earth and sand storage site. It is installed under the track for. (Opening / Closing Means) As the opening / closing means targeted by the present invention, a flat plate-shaped shutter can be used. (Drive Means) As the drive means, an air cylinder can be used.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The structure of an excavated earth and sand placing facility according to the present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows an excavated earth and sand storage facility 10 according to an embodiment of the present invention. This excavated earth and sand storage facility 10
The excavated earth and sand storage site 1, a gantry 2 provided above the excavated earth and sand yard 1, an opening / closing device 3 for the earth and sand inlet provided in the gantry 2, and a shuttle car 4 are basically configured. Reference numeral 5 indicates a tunnel being excavated.

The excavated earth and sand storage site 1 is provided outside the tunnel 5 at a position lower than the tunnel 5. Gantry 2
It is provided to pull the shuttle car 4 over the excavated earth and sand storage site 1. Sediment 6 excavated in tunnel 5
Is transported by the shuttle car 4 to the excavated earth and sand storage site 1 and directly input to the excavated earth and sand storage site 1 from the earth and sand input port 21 of the gantry 2.

As shown in FIG. 2, a lining plate 22 is provided on the upper surface of the gantry 2. Further, on the upper surface of the gantry 2, two parallel rails 23, 23 are laid as tracks for the shuttle car 4 to travel. Rails 23, 23
On the lower side of the plate, horizontal girders 24, 24 for reinforcement made of H-shaped steel or the like are provided. The earth and sand input port 21 is the rail 23,
It is provided on the lining plate 22 between 23.

At the bottom of the vehicle body of the shuttle car 4, there is provided a sediment discharge port 41 corresponding to the sediment input port 21. The earth and sand 6 transported by the shuttle car 4 is conveyed to the front side of the vehicle body by the conveyor 42 as shown in FIG. 1 and discharged from the earth and sand discharge port 41. The earth and sand 6 discharged from the shuttle car 4 in this way is put into the excavated earth and sand storage site 1 through the earth and sand input port 21 of the gantry 2.

As shown in FIG. 2, an opening / closing device 3 is provided below the earth and sand inlet 21 and between the cross girders 24. The opening / closing device 3 has a flat plate-shaped shutter 31 slightly larger than the earth / sand inlet 21 as an opening / closing means for opening / closing the earth / sand inlet 21. On both sides of the shutter 31, two wheels 32 are rotatably attached to each side.

As shown in FIG. 3, rails 33, 33 having a predetermined length for guiding the wheels 32 are attached to the insides of the transverse beams 24, 24. The rails 33, 33 are arranged on both sides of the earth and sand inlet 21 over a predetermined length, and the shutter 31 can be moved until the earth and sand inlet 21 is completely opened or closed.

The shutter 31 is driven by an air cylinder 34 which is a driving means attached to the lower side of the lining plate 22. The center of the air cylinder 34 is fixed to a bracket 35 provided on the lining plate 22.
A mounting bracket 37 is provided at the tip of the rod 36 of the air cylinder 34, and the mounting bracket 37 is mounted on a bracket 38 on the lower surface of the shutter 31. Rod 3
By extending 6
It moves to the position just under 1, and the earth and sand inlet 21 is closed.

At both ends of the air cylinder 31, rods 36 are provided.
A first sensor 39 for detecting the push-out limit position and a second sensor 40 for detecting the pull-in limit position are provided.
These sensors 39, 40 are connected to appropriate display means, for example an alarm buzzer (not shown).

When the rod 36 is detected by the second sensor 40, that is, when the rod 36 reaches the retracted limit position, the earth and sand inlet 21 is opened by the shutter 31, and in this case, the alarm buzzer is opened. Is sounded. Accordingly, when the shutter 31 is opened for some reason when the shuttle car 4 is not on the earth and sand inlet 21, this can be immediately recognized and appropriate action can be taken. Further, when the rod 36 is detected by the first sensor 39, that is, when the earth and sand inlet 21 is closed by the shutter 31, the alarm buzzer stops sounding.

As shown in FIG. 1, an operating portion 25 for operating the air cylinder 34 is attached to the tip of the gantry 2. The operation unit 25 is arranged at a position where the driver can operate from the inside of the cab 43 when the shuttle car 4 stops at a predetermined position for discharging the earth and sand 6.

As described above, this excavated earth and sand storage facility 10
In the above, since the opening / closing device 3 is below the earth and sand inlet 21, it does not interfere with the traveling of the shuttle car 4.
Therefore, the earth and sand 6 can be dropped without stopping the shuttle car 4, and the work efficiency can be prevented from lowering. Further, the shutter 31 can be opened only when the earth and sand 6 are discharged from the shuttle car 4, and can be closed at other times, which is effective for safety.

The shutter 31 can be opened and closed by the driver of the shuttle car 4 operating the operating portion 25 in the driver's cab, so that the driver does not have to repeatedly get on and off as in the conventional case, and the labor can be greatly saved. it can. Further, since the opening / closing device 3 only drives the shutter 31 by the cylinder 34, the structure can be simplified.

[0021]

As described above, according to the first aspect of the present invention, since the opening / closing means is attached to the lower side of the earth and sand inlet and the opening / closing means is automatically opened / closed by the driving means, The opening / closing means can be opened after the sediment discharge port of the carrier is aligned with the sediment input port. Therefore, it is effective in terms of safety, and it is not necessary to stop the earth and sand carrier on the way to open and close the lid of the earth and sand loading port as in the conventional case, and thus it is possible to greatly save labor.

According to the second aspect of the present invention, since the opening / closing means can be opened and closed by operating the operating means of the drive means in the cab of the earth and sand carrier, the labor of the earth and sand carrier can be further saved. You can

[Brief description of drawings]

FIG. 1 is a diagram showing a structure of an excavated earth and sand storage facility according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a view taken in the direction of arrow B in FIG. 1;

[Explanation of symbols]

 1 excavated earth and sand storage site 2 gantry 3 earth and sand inlet opening / closing device 4 shuttle car (earth and sand carrier) 5 tunnel 6 earth and sand 10 excavated earth and sand storage facility 21 earth and sand input port 22 lining plate 23 rail (track) 25 operation part (operating means) 31 Shutter (Opening / Closing Means) 34 Air Cylinder (Drive Means) 36 Rod 41 Sediment Discharge Port 43 Operator's Cab

Claims (2)

[Claims] 1. A gantry is installed at an excavated earth and sand storage site, a track for running a vehicle is provided on a lining plate provided on the gantry, and the excavated earth and sand discharged from a earth and sand carrier traveling on the orbit is the excavated earth and sand. In the structure of the excavated earth and sand placing facility to be put into the storage place, the earth and sand inlet provided in the lining plate under the track, and an opening and closing means attached to the lower side of the earth and sand inlet to open and close the earth and sand inlet A structure of an excavated earth and sand storage facility, comprising: a driving unit that drives the opening / closing unit. 2. The structure of an excavated earth and sand storage facility according to claim 1, wherein the operation means for operating the drive means is provided in a range in which the operation means can be operated from the cab of the earth and sand carrier.