JPH0647918B2 - Shield machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield machine, and more particularly to a shield machine that can safely and reliably carry in and out materials such as segments when digging up a steep slope.

[Prior Art] Generally, in tunnel excavation work using a shield machine, a method of pulling a bogie with a battery locomotive (locomotive) is used to carry materials such as segments into and out of the shield machine body. There is.

[Problems to be Solved by the Invention] In recent years, in order to reduce the tunnel excavation work cost, a tunnel shape for excavating the starting portion and the reaching portion of a shield machine with a steep slope is proposed in order to reduce the tunneling depth. It has come to be widely used in power communication related caves.

However, for steep slopes exceeding 5%, the conventional battery locosystem could not be adopted for safety. For this reason, a coal mine system can be used to provide a hoisting winch on the ground side to pull and move the bogie when descending immediately after the start part, but as in the reaching part, an upward climbing slope from the horizontal part is dug. In such a case, it becomes difficult to carry in and out the material and equipment such as the segment into the shield machine main body, and there has not been established a method capable of safely, efficiently and at low cost.

The present invention has been made in view of the above problems, and an object thereof is a low-cost method capable of safely and efficiently loading and unloading materials and equipment such as segments into the shield machine main body at the time of steep climbing. To provide a shield machine.

[Means for Solving Problems] In order to achieve the above-mentioned object, the present invention provides a material such as a segment in the excavator main body at an upper portion of a deck provided so as to project from the shield excavator main body to the rear thereof. A wire hoisting winch for pulling the trolley for loading and unloading is installed at the rear of the deck, and the wire rope unwound from the wire hoisting winch is deflected downward to guide the rail of the trolley. A deflection pulley is provided for guiding in a direction along, and the carriage is detachably connected to the tip of a wire rope guided rearward from the deflection pulley.

[Operation] On a horizontal road, the bogie is towed by the conventional battery loco system, and on steep slope roads, a wire hoisting winch installed on the deck overhanging the shield excavator body pulls the bogie to advance the shield. Pull the cart to the rear of the machine.

Further, since the wire hoisting winch is provided on the deck which is projected to the rear of the shield machine main body, it moves integrally with the shield machine main body and is not left behind.

Further, since the wire hoisting winch is provided at the upper part of the deck, it does not interfere with the work normally performed below the deck in a narrow tunnel.

In addition, the wire rope unwound backward from the wire hoisting winch at the top of the deck is wound around the deflection pulley, deflected downward and guided in the direction along the rail of the carriage, so it does not block the work space in the tunnel. Therefore, it is possible to avoid interference with the soil discharging device, the segment assembling device, and the like.

[Embodiment] A preferred embodiment of the shield machine according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in the figure, the deck 2 is provided at the rear of the shield machine main body 1a so as to project rearward from the rear. Further, behind the shield machine 1a, the shield machine body 1a
A trailing carriage 5 connected to the tension bar 3 and pulled and moved in the tunnel 4 after the segment assembly is completed,
A segment supply device 6 is provided so as to extend between the following trolley 5 and the shield machine main body 1a.

The segment supply device 6 includes a hoist beam 7 with a rack and a hoist beam 8 for climbing a slope.
The front end portion thereof extends to the vicinity of the segment assembly portion and is hung and supported by the deck 2, and the rear end portion is hung and supported by the ceiling of the succeeding carriage 5.

On the other hand, a wire hoisting winch 9 is arranged above the rear end of the deck 2 and a wire rope 10 hoisted on the winch 9 is provided.
One end of the turning pulleys 11a and 11b attached to the trailing carriage 5
Guide to the rail / sleeper upper surface 12 with a segment truck 1
It is detachably connected to a truck 13 for carrying in and out materials such as 3a.

When excavating a climbing steep slope of 5% or more with the shield machine 1 configured as described above, the horizontal path 14 is a conventional battery locomotive (locomotive) 15 and is used as a carrier 13 for loading and unloading materials such as a segment carrier 13a. Move by towing. When reaching the diagonal road 16, one end of the wire rope 10 is hooked on the trolley 13 for loading and unloading the material, and the trolley 13 is pulled up by the hoisting winch 9 and provided on the trailing trolley 5 of the shield machine 1. The inclined feeding path 16 is pulled and moved to the rear end of the segment feeding device 6 that has been set. Further, the segment 17 is suspended from the material loading / unloading truck 13 to the uphill hoist 8 and is transferred to the segment assembly section by the segment supply device 6.

Therefore, according to the shield machine 1 of the present invention, the shield machine body 1 can be used even when excavating a steep climb of 5% or more.
Material and equipment such as the segment 17 can be safely and reliably carried in and out of the inside of a. Further, the carriage 13 does not need to have a special specification, and can be provided at a low price with a simple structure in which the hoisting winch 9 is installed on the shield machine main body 1a side. When moving from the horizontal road 14 to the diagonal road 16, there is no need to move the segments 17 and the like, and it is a simple operation that only one end of the wire rope 10 is hooked on the trolley 13 and materials, etc. It is possible to carry in and out efficiently.

In addition, since the hoisting winch 9 is installed on the upper rear end of the deck 2 which is provided so as to project from the shield machine main body 1a to the rear thereof, the wire rope 10 does not travel at the segment assembly position, and the segment assembly position at the segment assembly position is It is possible to secure the safety, to secure a wide segment carrying-in space without interfering with the soil discharging device (not shown), and to further secure the tension bar 3 for supporting the succeeding carriage 5.
The load of the truck 13 for loading and unloading the material is not applied to.

In addition, when the weight of the succeeding carriage 5 is relatively light, the floating prevention device 18 is provided at the rear end portion.

[Effects of the Invention] In summary, according to the present invention, the following excellent effects are exhibited.

(1) When excavating a steep slope of 5% or more, materials and equipment such as segments can be safely and reliably carried in and out of the shield machine body.

(2) No special specifications are required for the trolley for loading and unloading materials, and only a wire rope hoisting winch is provided on the shield machine main body side, so it can be provided at low cost, and it can be provided from a horizontal road to a diagonal road. It is possible to efficiently carry in and out materials and equipment to and from the shield machine because all that is required is a simple operation of hooking a wire rope on the bogie during the transition.

(3) The wire hoist winch moves integrally with the shield excavator body as it moves forward, so it is prevented from being left behind.Because it is installed at the top of the deck, it normally runs below the deck. It does not interfere with the work in the tunnel.

(4) The wire rope unwound backward from the wire hoisting winch at the top of the deck is wrapped around the turning pulley and deflected downward and guided in the direction along the rails of the bogie, so the work space inside the tunnel is blocked. Therefore, it is possible to avoid interference with the soil discharging device, the segment assembling device, and the like.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a preferred embodiment of a shield machine according to the present invention. In the figure, 1 is a shield machine, 1a is a shield machine main body, 2 is a deck, 9 is a wire winding winch, 10 is a wire rope, 11a and 11b are turning pulleys, 12 is a rail / sleeper upper surface, and 13 is a material. It is a truck for loading and unloading.

Claims (1)

[Claims] 1. A trolley for carrying a material such as a segment into and out of the excavator main body is towed on the upper portion of a deck provided behind the shield excavator main body at the time of steep digging. A wire hoisting winch is provided, and a deflection pulley for deflecting the wire rope unwound from the wire hoisting winch downward and guiding the wire rope in the direction along the rail of the bogie is provided at the rear of the deck. A shield excavator characterized in that the trolley is detachably connected to the end of a wire rope guided to the rear.