JP5400535B2 - Linked work vehicles used for tunnel lining repair - Google Patents

Description

  The present invention relates to a group of connected working vehicles used for repairing a railway tunnel lining, and in particular, for use in repairing an existing lining made of concrete or the like constructed on the inner surface of a tunnel using a lock bolt or the like. It relates to a suitable connected work vehicle group.

  Railroad tunnels have a lining made of concrete or the like on the arc-shaped or kamaboko-shaped inner peripheral surface. Tunnel lining, such as lining concrete, deteriorates due to the formation of cavities on the back of the lining due to changes in earth pressure and spring water conditions, or cracks in the lining concrete. Moreover, due to deterioration of the lining concrete itself, cracks and the like are generated and deteriorated. If such a state is left unattended, there is a risk of falling off of the lining concrete, so the tunnel lining is regularly inspected and repair work is performed if necessary. As a tunnel lining repair method, a method using a lock bolt or an anchor bolt is known. In this method, a lock bolt hole is formed at a repair site by a hole drilling machine, a lock bolt is inserted into the hole, and a grout material is injected to fix the lock bolt to a natural ground. Patent Document 1 discloses a repair method using a lock bolt.

JP 2001-295991 A

  Since the tunnel lining repair work is performed in a state where the operation of the railway vehicle is stopped, it is necessary to perform it efficiently in a short time.

  In view of this point, an object of the present invention is to propose a group of connected working vehicles for efficiently repairing a railway tunnel lining in a short time.

In order to solve the above-mentioned problem, the connected work vehicle group used for repairing the tunnel lining of the present invention is:
A first work vehicle and a second work vehicle connected to each other capable of traveling on railroad rails, and a third work vehicle having the same configuration as the first work vehicle ,
The third work vehicle is connected in the opposite direction to the first work vehicle with the second work vehicle interposed therebetween.
The first work vehicle is equipped with a boom type aerial work machine capable of moving with a predetermined stroke in the front-rear direction,
The second working vehicle is equipped with a drilling machine that can move in the front-rear direction with a predetermined stroke,
The boom type aerial work machine has a moving stroke in the front-rear direction so that a worker can reach the work range of the inner surface of the tunnel lining by the hole drilling machine.

  In the repair work using the coupled work vehicle group of the present invention, it is necessary to stop each work vehicle in the tunnel, and the worker rides on the boom type aerial work machine and inspects the inner peripheral surface of the tunnel lining for repair. Check the correct location. Drill holes using a drilling machine in places where repairs are required, insert lock bolts, etc., and inject grout materials to fix them. In addition, a grout material or the like is also injected into the back cavity to fill the cavity. In such repair work, the inner peripheral surface of the tunnel lining can be confirmed while moving the boom type aerial work machine in the front-rear direction (traveling direction). In other words, the range of the tunnel lining inner peripheral surface that can be drilled by the drilling machine can be confirmed. Therefore, work such as repeatedly moving the work vehicle to confirm the inner surface of the tunnel lining is unnecessary, and repair work can be performed efficiently in a short time.

In the present invention, since the third work vehicle having the same configuration as the first work vehicle is connected in a state opposite to the first work vehicle with the second work vehicle interposed therebetween, the efficiency of the repair work is improved. Can be planned.

In this way, by placing the boom type aerial work equipment in front of and behind the drilling machine so as to be movable in the front-rear direction, the worker can access each repair location on the inner surface of the tunnel lining. It becomes extremely easy and repair work can be performed efficiently.

Here, the boom type aerial work machine used in the present invention includes a boom swivel, a multistage boom supported by the boom swivel, a working bucket attached to the tip of the multistage boom, and the boom swivel. A drive mechanism that performs a turning operation around a vertical axis of the table, a telescopic operation of the multi-stage boom, and a hoisting operation of the multi-stage boom; and a slide mechanism that slides the boom turn table in the front-rear direction. In this case, the stroke of the boom swivel slide may be determined so that the moving range of the working bucket substantially includes the working range of the drilling machine.

The drilling machine used in the present invention includes a hydraulic drifter that applies rotation and impact to a self-drilling lock bolt having a bit attached to the tip, a guide shell that serves as a guide for sliding the hydraulic drifter back and forth, and a guide shell. A boom having a mechanism that supports and slides back and forth and pivots at the center of the tunnel in the vertical plane, a boom swivel that supports the boom and pivots in the vertical and horizontal planes, and slides the boom swivel back and forth and left and right It has a mechanism.

Furthermore, it is desirable that the first work vehicle and the second work vehicle used in the present invention each include a cart with an outrigger.

The connected work vehicle group used for repairing the tunnel lining of the present invention is the same as the first work vehicle in which the boom type aerial work equipment is movably mounted in the front and rear (travel direction), and the drilling machine is also in the front and rear (travel The second work vehicle is mounted so as to be movable in the direction). A worker on a boom-type aerial work machine can easily access the work range of the inner surface of the tunnel lining by the drilling machine. In addition, a third work vehicle having the same configuration as the first work vehicle is connected in a state opposite to the first work vehicle with the second work vehicle interposed therebetween. It has the structure which has arrange | positioned the working machine in the state which can move to the front-back direction. This makes it extremely easy for the worker to access each repair location on the inner surface of the tunnel lining. Therefore, if the connection work vehicle group of the present invention is used, the tunnel lining repair work can be efficiently performed in a short time.

It is a side view which shows the example of organization of the connection work vehicle group used for repair of the tunnel lining to which this invention is applied. It is a top view, a side view, and an end view showing a work vehicle on which a drilling machine is mounted. It is explanatory drawing which shows the movable range of the excavator of the working vehicle of FIG. It is a top view, a side view, and an end view showing a work vehicle on which a boom type aerial work machine is mounted. It is the top view which shows the slide mechanism of the boom type aerial work machine of FIG. 4, a side view, and an AA arrow figure. It is a top view which shows the outrigger in the connection work vehicle group of FIG. 1, a longitudinal cross-sectional view, a cross-sectional view, and a cross-sectional view at the time of expansion | extension. It is the top view, side view, and end view which show the movement range of the bucket for work in the connection work vehicle group of FIG.

  Below, with reference to drawings, an example of the connection work vehicle group used for repair of the tunnel lining to which this invention is applied is demonstrated.

(overall structure)
As shown in FIG. 1, the connected work vehicle group 1 is composed of six-car work vehicles 10, 20, 30, 40, 50, 60 that can travel on railroad rails 2. The work vehicles 10 and 60 connected to both ends have the same configuration and are connected in opposite directions, and are provided with traveling carriages 11 and 61 equipped with traveling devices at the front and rear, respectively. 12, 62, boom buckets 13 and 63, arch part inspection tables 14 and 64, and joint part inspection tables 15 and 65 are mounted. The work vehicle 20 connected to the work vehicle 10 includes a 25-ton bogie 22 having wheels 21a and 21b on the front and rear sides, and a compressor 23, a generator 24, a slime processing device 25, an injection pump 26, and the like. Devices such as a mortar mixer 27, a material machine 28, and a water tank 29 are mounted.

  The work vehicle 30 (first work vehicle) includes a cart 31 with a 10-t outrigger and a boom type aerial work machine 32 mounted thereon. The work vehicle 50 (third work vehicle) has the same configuration as the work vehicle 30 and includes a cart 51 with a 10t outrigger and a boom type aerial work machine 52 mounted thereon. The work vehicles 30 and 50 are connected in a reverse direction (symmetrical state) with the work vehicle 40 interposed therebetween. The work vehicle 40 (second work vehicle) includes a bogie bogie 41 with a 20 t outrigger and a lock bolt drilling machine 42 mounted thereon.

(Work vehicle 40)
With reference to FIG. 2, the work vehicle 40 in which the rock bolt drilling machine 42 is mounted will be described. Wheels 41a and 41b for rail travel are attached to front and rear lower surfaces of the bogie 41 with an outrigger of the work vehicle 40. On the upper surface of the bogie bogie 41 with an outrigger, a moving rail 44 is disposed along the front-rear direction (traveling direction), and the traveling bogie 45 can travel on the moving rail 44 back and forth. A rock bolt drilling machine 42 is mounted on the traveling carriage 45.

  The rock bolt drilling machine 42 includes a boom swivel base 42a mounted on a traveling carriage 45, and a boom boom 42b is mounted on the boom swivel base 42a, and a hole drilling machine is installed at the tip of the hoisting boom 42b. A main body 42c is attached. The rock bolt drilling machine 42 is driven by operating an operation lever or the like of the operation table 42d. That is, the drilling machine main body 42c includes a hydraulic drifter 42h that applies rotation and striking to a self-drilling lock bolt 42g having a bit 42f attached to the tip, and a guide shell 42i that serves as a guide for sliding the hydraulic drifter 42h back and forth. The hoisting boom 42b has a mechanism that supports the guide shell 42i, slides forward and backward, and pivots around the center of the tunnel in the vertical plane. The boom swivel 42a supports the hoisting boom 42b. It has a mechanism for raising and lowering and turning on a horizontal plane, and is mounted on a traveling carriage 45 having a mechanism for sliding the boom turntable 42a back and forth and right and left.

  Here, the rock bolt drilling machine 42 can move from the standby position 42A shown by the solid line in FIG. 2B to the front position 42B and the rear position 42C shown by the imaginary line. For example, the stroke S1 is 5000 mm. is there. A generator 46 is mounted on the front side of the rock bolt drilling machine 42, and a water tank 47 and the like are mounted on the rear side thereof.

  Referring to FIGS. 2 and 3, the rock bolt drilling machine 42 rotates its drilling machine main body 42c by 90 degrees laterally from a standby position extending in the front-rear direction as shown in FIG. 2 (a). In this state, the bit 42f at the tip of the self-drilling lock bolt 42g attached to the drilling machine main body 42c can be directed to the target position by raising and lowering in the vertical direction. That is, the drilling direction can be accurately and quickly positioned radially from the tunnel center on the orthogonal cross section of the tunnel 3 orthogonal to the rail 2 by the two operations of turning and raising / lowering. Further, by traveling the traveling carriage 45 in the front-rear direction, an arbitrary position of the inner peripheral surface 4a of the lining concrete 4 can be drilled within the range of the stroke S1 in the front-rear direction.

(Work vehicle 30)
Next, the work vehicle 30 on which the boom type aerial work machine 32 is mounted will be described with reference to FIG. Wheels 31a and 31b for rail travel are attached to the lower front and rear surfaces of the carriage 31 with an outrigger of the work vehicle 30, and a slide mechanism 33 for sliding the slide base 33a in the front-rear direction is mounted on the upper surface. A boom type aerial work machine 32 is mounted on the slide mechanism 33. The boom type aerial work machine 32 includes a boom swivel base 32a mounted on a slide base 33a. A multistage boom 32b is mounted on the boom swivel base 32a, and a work is performed at the tip of the multistage boom 32b. A bucket 32c is attached. In addition, the boom type aerial work machine 32 includes a generator 35 for performing a turning operation around the vertical axis of the boom swivel base 32a, an expansion / contraction operation of the multistage boom 32b, and a raising / lowering operation of the multistage boom 32b, and hydraulic pressure. A drive mechanism having a unit 36 is provided.

  FIG. 5 shows the work vehicle 30 with the boom type aerial work machine 32 removed. As can be seen from this figure, the slide table 33a on which the boom type aerial work machine 32 is mounted is moved in the front-rear direction. The slide mechanism 33 that slides along the extending slide rail 33 b includes an upper slide cylinder 33 c and a lower slide cylinder 33 d that are horizontally disposed on the carriage 31 in the front-rear direction. The slide base 33a is slid rearward from the standby position 33A to the midway position 33B by the upper slide cylinder 33c. From the intermediate position 33B, the lower slide cylinder 33d slides to the rear rear end position 33C together with the upper slide cylinder 33c. Therefore, it is possible to slide by the stroke S2 in the front-rear direction as a whole, and this stroke S2 is 3250 mm, for example. Therefore, the boom type aerial work machine 32 mounted on the slide base 33a can also slide back and forth by the stroke S2.

  The work vehicle 50 has the same configuration as that of the work vehicle 30 except that the front and rear are reversed, and a boom type aerial work machine 52 is mounted on a slide mechanism 53 provided with a slide base 53a. The boom type aerial work machine 52 includes a swivel base 52a mounted on a slide base 53a, a multistage boom 52b mounted on the swivel base 52a, and a working bucket attached to the tip of the multistage boom 52b. 52c. Further, the boom type aerial work machine 52 can be slid by the stroke S2 in the front-rear direction by the slide mechanism 53.

(Outrigger)
Next, FIG. 6 is a plan view, a side view, and an operation explanatory view showing an outrigger attached to the work vehicles 30, 40, 50. The outrigger 70 is attached to each of the four corners of each work vehicle 30, 40, 50 before and after the carriage. The outrigger 70 includes a drive motor 71 and an outrigger jack 72 driven by the drive motor 71. The outrigger jack 72 includes an outer case 73 that is vertically attached to the back surface of the carriage, and an inner case 74 that is coaxially disposed therein, and the inner case 74 extends downward from the lower end opening of the outer case 73. The urethane pad 75 is attached to the lower surface. In the standby state shown in FIG. 6C, the inner case 74 is drawn into the outer case 73. In the operating state, the inner case 74 protrudes downward and is pressed against the ground.

(Description of operation)
With reference to FIG. 7, the operation | movement of the connection work vehicle group 1 comprised in this way is demonstrated. In this figure, only three work vehicles 30, 40 and 50 are shown. The rock bolt drilling machine 42 mounted on the central work vehicle 40 is movable in the front-rear direction with a stroke S1, and within the range of the slot talk S1, an arbitrary inner surface 4a of the tunnel lining concrete 4 is provided. The position can be drilled. The boom type aerial work vehicles 32 and 52 mounted on the work vehicles 30 and 50 connected to both sides of the work vehicle 40 slide back and forth within the range of the stroke S2 in the front and rear direction by the slide mechanisms 33 and 53. Is possible.

  As shown in the figure, in the state where the multi-stage booms 32b and 52b are extended, the height of the working buckets 32c and 52c is set so that the worker riding on the working buckets 32c and 52c has the apex position of the inner peripheral surface 4a of the tunnel lining concrete 4 Keep it at a height that is within reach. In this state, when the boom type aerial work machines 32 and 52 are slid back and forth, the worker on the work bucket can reach the work range by the lock bolt drilling machine 42 and perform work. it can. Thus, since the strokes by the slide mechanisms 33 and 53 are determined so that the movement range of the work buckets 32c and 52c substantially includes the work range by the lock bolt drilling machine 42, the connected work vehicle group 1 It is unnecessary to perform the operation of repeatedly moving forward and backward, and the tunnel lining concrete 4 can be inspected and repaired efficiently and sequentially.

(Other embodiments)
In the above example, the work vehicles 30 and 50 having the same configuration are connected to the front and rear of the work vehicle 40 in opposite directions, but the strokes of the slide mechanisms 33 and 53 of the work vehicles 30 and 50 may be different. .

DESCRIPTION OF SYMBOLS 1 Connection work vehicle group 2 Railway rail 3 Tunnel 4 Tunnel lining concrete 4a Inner peripheral surface 10, 20, 30, 40, 50, 60 Work vehicle 31, 51 Dolly 32, 52 with an outrigger Boom type aerial work machine 32a, 52a Swivel bases 32b, 52b Multi-stage booms 32c, 52c Working buckets 33, 53 Slide mechanisms 33a, 53a Slide base 33b Slide rail 33c Upper slide cylinder 33d Lower slide cylinder 41 Bogie bogie with outrigger 42 Lock bolt drilling machine 42a Swivel base 42b Boom 42c Drilling machine body 42d Operation base 42f Bid 42g Self-drilling lock bolt

Claims (4)

A first work vehicle and a second work vehicle connected to each other capable of traveling on railroad rails, and a third work vehicle having the same configuration as the first work vehicle ,
The third work vehicle is connected in the opposite direction to the first work vehicle with the second work vehicle interposed therebetween.
The first work vehicle is equipped with a boom type aerial work machine capable of moving with a predetermined stroke in the front-rear direction,
The second working vehicle is equipped with a drilling machine that can move in the front-rear direction with a predetermined stroke,
A forward and backward movement stroke of the boom type aerial work machine is determined so that an operator can reach the work range of the tunnel lining inner peripheral surface by the hole drilling machine. A group of connected work vehicles used for lining repairs. The boom type aerial work machine is
A boom swivel,
A multi-stage boom supported by this boom swivel,
A working bucket attached to the tip of this multi-stage boom;
A drive mechanism for performing a turning operation around a vertical axis of the boom swivel base, an expansion / contraction operation of the multi-stage boom, and a hoisting operation of the multi-stage boom;
A slide mechanism for sliding the boom swivel back and forth,
2. The tunnel cover according to claim 1, wherein a stroke of sliding of the boom swivel base is determined so that a moving range of the working bucket substantially includes the working range of the drilling machine. A group of connected work vehicles used for repair work. The drilling machine
A hydraulic drifter that applies rotation and blow to a self-drilling lock bolt with a bit attached to the tip;
A guide shell serving as a guide for sliding the hydraulic drifter back and forth;
A boom having a mechanism that supports the guide shell, slides back and forth, and rotates around the center of the tunnel in a vertical plane;
A boom swivel with a mechanism for supporting the boom and swinging in a vertical and horizontal plane;
The connected working vehicle group used for repairing the tunnel lining according to claim 1, further comprising a mechanism that slides the boom swivel back and forth and left and right.   The said 1st work vehicle and the said 2nd work vehicle are each equipped with the trolley | bogie with an outrigger, It uses for repair of the tunnel lining of any one of Claim 1 thru | or 3 characterized by the above-mentioned. Connected work vehicle group.

Images