JPH0613834B2 - Method and device for discharging soil in tunnel excavation - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method and a device for encapsulating soil (shear) generated during tunnel excavation and transporting it outside a tunnel.

(B) Conventional Technology Conventionally, it has been a general method to discharge the soil (sliding) generated during excavation in a tunnel (in particular, a mountain tunnel) by a truck to the outside of the mine. However, a large volume of exhaust or intake pipe and blower for discharging the gas exhausted from the truck to the outside of the mine (one or two exhaust pipes with a diameter of 1 m or more in a tunnel with a radius of 5 m and 1000 m ³ / min of contra Ventilation equipment consisting of 1 to 2 fans) was required.

Ventilation equipment is expensive due to the equipment cost (initial cost) and operating cost (running cost). Frequent round trips of trucks in tunnels may cause traffic accidents, especially injuries, in the mine, and it is expensive to secure and maintain the roadbed.

Exhaust soil transfer by a belt conveyor is used except in special cases because maintenance is required on the entire underground line, spillage of goods is unavoidable, and accidents may occur when people pass by. Absent.

In trolley transportation, there are problems such as an increase in the number of operating personnel associated with the occurrence of traffic accidents and longer distances, and higher costs due to rail laying, and it is not possible to cope with excavation speeds higher than the current one in terms of transport capacity.

On the other hand, it is impossible to apply the conventional capsule transportation system to this. In other words, conventional capsule transportation is a system that assumes fixed-point transportation, and the loading / unloading mechanism mainly pursues high efficiency. Therefore, it is necessary to install a turntable type or revolver type loading device in the tunnel and to move the device following the movement of the face, which inevitably increases the size and complexity of the entire device.

Therefore, in order to obtain a system for safely, labor-saving, economically and efficiently transporting the soil discharged during tunnel excavation, the applicant puts the soil discharged during tunnel excavation into a capsule, In the method of transporting the inside of the pipe from the vicinity of the face to the outside of the tunnel by using air pressure or down slope, providing an earth discharging station near the face inside the tunnel, providing an earth discharging station outside the tunnel, both stations Are connected to each other by a loading capsule traveling pipe and an empty capsule traveling pipe, a swing type traverser is provided at both stations to switch the coupling of both pipes, and a towing vehicle is installed at both stations. Loading and unloading capsules from the station, and loading or unloading capsules from the station. A method for discharging and discharging soil in tunnel excavation, which comprises providing a system to move the station in response to movement of the soil discharge loading device, and adding the both pipes to a space after the movement of the station, and a method thereof. An apparatus for carrying out is disclosed (Japanese Patent Laid-Open No. 2-61)
No. 296).

The feature of this prior art is that the loading hopper absorbs the expansion and contraction of the distance between the excavator and the earth dumping and loading device that continuously proceed. However, in order for the excavator to advance beyond the absorbable distance, the advance is temporarily stopped, the station after the loading hopper is moved to the excavator side, and a new pipe is installed between the station and the pipeline. After inserting
The excavation has to proceed again.

In this technique, the maximum distance that can be absorbed is limited by the length of the hopper (for example, about 15 m), so that the travel of a long distance cannot be absorbed. For example, if this is applied to a high-speed tunnel excavation method that advances about 10 to 15 m per day, excavation must be stopped every day to move the station, resulting in a decrease in the travel distance per day. .

(C) Problem to be Solved by the Invention The problem to be solved by the present invention is to utilize a periodical holiday in tunnel excavation work to intermittently move a braking / starting vehicle behind a discharging / loading vehicle. To obtain a method and a device that allow a significant movement of the.

(D) Means for Solving the Problems In the method of discharging soil in tunnel excavation of the present invention, the excavated soil generated during tunnel excavation is put into a capsule and air pressure or a downward slope is used in the pipeline from near the face to outside the tunnel. In the method of transporting the same, the tunnel material transported by the capsule is discharged from the capsule, or the discharge / loading carriage for loading the discharge soil from the face into the capsule is provided near the face in the tunnel. A discharge / loading carriage that advances as the face advances, and a braking / starting carriage that controls braking / starting of the capsule is provided behind the discharge / loading carriage, and the braking / starting carriage is intermittently provided. In advance, placing a series of capsules on a capsule moving device provided in a variable section between the two carriages, and moving the capsules in front of the braking / starting carriage. The above problem is solved by means of adding a capsule traveling pipeline to a new section that occurs after the progress.

The method of discharging soil in tunnel excavation of the present invention is a device for encapsulating the soil generated during tunnel excavation and transporting it in the pipeline from the vicinity of the face to the outside of the tunnel using air pressure or a downward slope. Proceeding with the progress of the cutting face in the vicinity, the tunnel material conveyed by the capsule is discharged from the capsule, and the discharge / loading carriage for loading the soil discharged from the cutting face into the capsule and the back and forth of the carriage. Braking / starting trolley for controlling the braking / starting of the capsule,
Means comprising a capsule moving device for moving a series of capsules in a variable section between the two carriages, and a pipeline for capsule travel that is sequentially added to a new section generated after the braking / starting carriage has moved forward The above problem is solved by.

(E) Operation In the above-mentioned prior art of the present applicant, the gap is restricted because the gap between the progress of the excavator and the pipeline extension for the capsule is absorbed in the hopper. According to the present invention, this restriction is eliminated by separating the loading section near the excavator and the braking start section near the pipeline, and the problem is solved by using another capsule moving device during this period.

The braking / starting trolley is connected to the pipeline while the capsule is in operation, and it has the function of braking the capsule that has traveled on the loading side pipeline and smoothly passing it to the next capsule moving device. It has a function of receiving from the moving device and smoothly inserting and traveling into the unloading side pipeline. When the operation for a predetermined period (for example, one week) is completed, the braking / starting truck is moved to the discharging / loading truck side after the connection with the pipeline is released.
A new pipe is inserted between the resulting pipeline and the pipeline.

The capsule moving device receives the capsule from the braking / starting carriage, transfers it to the discharging / loading carriage, and discharges the capsule.
In addition to delivering it to the loading dolly, it also discharges the capsule with the soil discharged and receives it from the loading dolly and sends it to the braking / starting dolly.

The unloading / loading cart receives the capsule from the capsule moving device, moves it to a position opposite to the unloading side pipeline, loads the soil, and then delivers it to the capsule moving device. During this time,
The unloading / loading truck is moving slowly along with the excavator.

(F) Embodiments Embodiments of the method and apparatus for discharging soil in tunnel excavation of the present invention will be described with reference to FIGS. 1 to 8.

The apparatus of the present invention, as best shown in FIG. 1 and FIG. 2, puts the soil discharge 11 generated during excavation of the tunnel 1 into the capsule 2 and pneumatically moves the inside of the pipeline 3 from the vicinity of the face 4 to the outside of the tunnel. Alternatively, it is applied to a device that uses a downward slope to convey.

The device of the present invention is mainly used for discharging / loading dolly 5 and braking / loading
Start vehicle 6, capsule moving device 7, and pipeline 3
It is made of In the figure, 8 is an excavator provided on the face. The carriages 5, 6 and the device 7 can run on a wide-gauge rail 9.

The discharge / loading carriage 5 advances with the progress of the face 4, and discharges the tunnel material (for example, gravel, sand, cement, etc.) carried by the capsule 2 from the capsule 2 or the face of the capsule 2. We load dumped soil 11 from 4.

The braking / starting carriage 6 travels intermittently behind the carriage 5,
Controls braking / starting of the capsule 2.

The capsule moving device 7 moves by carrying a series of capsules 2 (for example, 3 cars) in a variable section 506 between the carriage 5 and the carriage 6.

The pipeline 3 is formed by connecting the individual pipes 31 to form a forward path and a return path.

Assuming that a large lump may be mixed into the soil 11 from the face 4, the discharging / loading carriage 5 is provided with a crusher 51, and a tunnel material for tunnel construction (for example,
It also has a function to carry in gravel, sand, cement, etc.) at the same time. If it is unlikely that a large lump will be mixed in the soil,
No crusher is needed. When it is not necessary to bring in tunnel materials, "lifting", "frame transfer", "material discharge", "frame transfer", "removal" for discharging this material
No such mechanism is required.

As shown in FIGS. 2 and 4, the loading pipeline
The capsule that has traveled through 3a (in this case, it is loaded with tunnel material) is braked by the brake cylinder 61. Here, the pressure between the capsule 2e at the end of the pipe and the capsule 2s that has entered is compressed and rises, the frictional resistance during traveling,
And braking is performed by utilizing the decrease in kinetic energy caused by climbing the slope.

FIG. 3 and FIG. 4 show the capsule moving device 7. This device 7 is mainly composed of a transfer carriage 71 and is used separately for the carry-in line 7a side and the carry-out line 7b side. However, transfer cart 7
As shown in FIG. 2, one unit is provided on the wide-gauge rail 9 straddling both lines 7a and 7b. When advancing forward of the tunnel 1, the capsule 2 is placed on the carry-in line 7a side, and when advancing backward, the capsule 2 is placed on the carry-out line 7b side.

As shown in FIG. 4, the transfer carriage 7 is a braking / starting carriage 6.
Upon arrival at, the capsule 2 is released from the capsule braking cylinder 61. When the leading capsule 2e hits the pulling rod of the chain, the hook 201 of the capsule 2 falls against the spring and the rod 721 hits the capsule, as shown in FIG. At the same time, the pull-in chain 72 on the transfer carriage is driven so that the capsule 2 is completely seated on the transfer carriage 71. After that, the transfer carriage 71 travels by itself to reach the loading carriage. The transfer carriage 71 may be moved by a pulling mechanism 73 including a wire and a winch as shown in the figure.

Upon arrival at the discharging / loading carriage 5 (a crusher is provided if a crusher 51 is required, but this may be integrated with the loading carriage 5), the pull-in chain 72 is driven and the capsule 2 is driven.
Is transferred to the fixed rail 58 on the side of the loading cart 5, and the movement of the capsule 2 is transferred to the transfer chain 57.

In this way, as shown in FIG. 3, the capsule 2 that has been moved to the lower rear portion of the tunnel material discharge part 52 is lifted up by the lifter 54 here and further moved to the traverser 53 on the discharge chute 521. .

FIG. 6 is a side view of the lifter 54, and FIGS. 5 and 7 are front views thereof. In FIG. 7, the lifter 54 holds the capsule 2 in the form of hugging the capsule 2 with a fixed lifting tool 541a. In this case, the lifter 54 needs to wait before the capsule 2 arrives. Lifter 54 shown in FIGS. 5 and 6
The cylinder 542 contracts so that the suspending device 541b causes the capsule 2 to move.
To hold the capsule 2 by hooking it on a hook (not shown). There is no restriction on the order of arrival of the lifter 54 and the capsule 2.

In either case, as shown in FIG.
At 3, the capsule 2 is lifted with the train formation. The hoisting beam 543 is hoisted at several points by a chain 544.
Since the chain 544 is hoisted in synchronization with the gear 545, it rises while maintaining the level. The lifter 54 is supported by wheels 546 like an overhead traveling crane, and is moved forward by a traveling motor (not shown).

After that, the capsule 2 is moved in the opposite direction to the soil dumping section.
It is located under 56 and loads dumped soil. Next, the capsule 2 is handed over to the transfer carriage 71 that has arrived. At this time, the loading line 7a
On the side, the capsule is moved to the fixed rail 58 described above. On the carry-in line 7a side, the capsule 2 is delivered from the transfer carriage 71 to the discharge / load carriage 5 and on the carry-out line 7b side,
The capsule 2 is transferred from the loading cart 5 to the transfer cart 71.

The transfer carriage 71 moves to the braking / starting carriage 6, and when the capsule 2 is delivered to the starting barrel 62, the capsule 2 starts moving. At this time, on the loading line 7a side, from the braking / starting carriage 6 to the transfer carriage.
The capsule 2 is handed over to 71, and a transfer cart is provided on the unloading line 7b side.
The capsule 2 is passed from 71 to the braking / starting carriage 6.

The extension absorbable distance is such that the transfer carriage 71 which has started the braking / starting carriage 6 and has arrived at the discharging / loading carriage reaches the braking / starting carriage 6 within the starting time interval by starting the discharging / loading carriage 5 again. It depends on the distance you can do it.

(G) Effect According to the present invention, the long-distance travel of the braking / starting vehicle can be effectively absorbed by utilizing the periodic excavation suspension time, so that the number of excavation stops for pipeline extension can be reduced. . As a result, the overall work efficiency of tunnel excavation is improved and the construction period can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic plan view of an apparatus for carrying out the method of the present invention. 2 is a schematic perspective view of the apparatus shown in FIG. FIG. 3 is a schematic side view of the unloading / loading truck in FIG. FIG. 4 is a schematic side view of the capsule moving device and the braking / starting carriage in FIG. 1. FIG. 5 is a cross-sectional view taken along the line VV of FIG. Sixth
The figure is a side view from the VI-VI line in FIG. FIG. 7 is a drawing similar to FIG. 5 and shows another embodiment. FIG. 8 is a schematic side view of the capsule retracting chain. 1: Tunnel 2: Capsule 3: Pipeline 4: Face 5: Discharge / loading truck, 6: Braking / starting truck 7: Capsule moving device, 8: Excavator 9: Wide gauge rail, 3a: Carrying pipeline 3b : Transport pipeline, 51: Crusher 52: Tunnel material discharge section 53: Traverser, 54: Lifter 55: Transport line, 56: Soil loading section 57: Transfer chain, 58: Fixed rail 61: Braking cylinder, 62: Start Cylinder 71: Transfer cart, 72: Retractable chain

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Tomoda 15-1 Ryumi Town, Takasaki City Gunma Prefecture Ryumi Dormitory (72) Inventor Nobutake Fujita 15-1 Ryumi Town, Takasaki City Gunma Prefecture Railway Company Ryumi Dormitory (72) Inventor Takashi Okada 1459-1 Yamaguchi, Tokorozawa, Saitama Prefecture (72) Inventor Kosugi Sanai 1-3-3 Otemachi, Chiyoda-ku, Tokyo Sumitomo Metal Industries, Ltd. (72) Inventor Kai Toshio Sumitomo Metal Industries, Ltd. 1-3-1 Otemachi, Chiyoda-ku, Tokyo (72) Inventor Makoto Uchida 1-3-1 Otemachi, Chiyoda-ku, Tokyo Sumitomo Metal Industries (56) Reference Document JP-A-2-61296 (JP, A)

Claims (2)

[Claims] 1. A method for transporting soil discharged from tunnel excavation into a capsule and transporting the inside of a pipeline from the vicinity of a face to the outside of the tunnel using air pressure or a downward slope, wherein the material for the tunnel is transported by the capsule. Discharging from the capsule, or providing a discharge / loading carriage for loading the soil discharged from the face into the capsule in the vicinity of the face in the tunnel, and advancing the discharge / loading carriage as the face progresses, A braking / starting carriage for controlling the braking / starting of the capsule is provided at the rear of the discharging / loading carriage, the braking / starting carriage is moved intermittently, and the capsule is moved in a variable section between the two carriages. Putting a series of capsules on the device and moving it, and adding a pipeline for capsule travel to a new section created after the braking / starting truck has moved forward. Dumping discharge method in tunneling comprising a. 2. A device for encapsulating the soil generated during tunnel excavation and transporting the inside of a pipeline from the vicinity of the face to the outside of the tunnel by using air pressure or a downward slope. Then, the tunnel material conveyed by the capsule is discharged from the capsule, or the discharging / loading carriage for loading the soil discharged from the face into the capsule, and progressing intermittently behind the carriage, A braking / starting vehicle that controls braking / starting of the capsule, a capsule moving device that moves a series of capsules in a variable section between the two vehicles, and a new section that occurs after the braking / starting vehicle moves forward. A soil discharge device for tunnel excavation consisting of a pipeline for capsule travel that is being added in sequence.