JPH0572520B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a tunnel construction machine.

[Conventional technology and problems]

In tunnel construction, the excavation method is selected from among the front section method, bench cut method, etc., taking into account the self-supporting face, the bearing capacity of the ground, etc.
No matter which excavation method is used, different mechanical equipment is used for each type of work. Most of these mechanical devices are individually equipped with a drive source such as an engine, and are replaced and set at a predetermined position on the face each time the type of work changes. Furthermore, in the long bench construction method and the short bench construction method, each of the above-mentioned mechanical devices for the upper half section and the lower half section are required separately, at least for simultaneous construction of the upper and lower half sections, and therefore twice the number of machines is required. .

Providing separate mechanical equipment for each type of work and replacing and resetting a large number of mechanical equipment each time it is used not only requires a huge amount of equipment costs, but also makes the mine cluttered and degrades the working environment. It also increases the time required for one cycle of face work (drilling, blasting, shearing, shotcrete, lock bolting, etc.).

In addition, it is desirable to select the most appropriate tunnel excavation method for each section depending on the geological conditions, that is, to change the full-section method and the bench-cut method as appropriate. Most of the equipment has different standards and cannot be used interchangeably, so it is necessary to have two models that are compatible with each construction method, which significantly reduces the operating rate of the machinery.

The inventors of the present invention have conducted intensive research to solve the above-mentioned problems caused by transporting and installing mechanical equipment according to each type of work separately. The tunnel construction machine of the present invention, which can be freely operated with a single mechanical device, has been invented.

[Means for solving problems]

The configuration of the tunnel construction machine of the present invention is as follows when described in terms of an embodiment.

A machine frame f is established on the pallet e, and a spraying robot g and an erector h for shoring erection with a rock drill are installed on the upper stage of the machine frame f so that they can move forward and backward, and charging decks are installed on the left and right of the middle stage. i
Each is equipped with the ability to move forward and backward. Further, a dust collector j is installed at the center of the latter half of the upper stage, and a curtain device k is installed around the dust collector j. In addition, the lower stage includes a spraying machine l, an quick-setting agent injection device m,
Equipped with air dryer n, mortar mixer o, mortar pump p, etc.

The pallet e has a required shape so that it can be mounted on an inner frame s mounted vertically movably on the low-floor chassis r of a self-propelled transportation vehicle B, which is constructed by connecting a low-floor chassis r to a tractor head q. There is.

[Effect]

According to the present invention, the machine frame f on the pallet e is equipped with various equipment necessary for shoring erection and primary lining, so there is no need to worry about replacing and setting machinery for each type of work as in the past. It is possible to easily install the desired shoring and perform the primary lining without any problems. Moreover, at that time, the face is partitioned by the curtain device k to prevent dust from scattering into the rear space of the mine, and the dust can be efficiently collected in the dust collector j.

〔Example〕

The present invention will be described below with reference to the illustrated embodiments.

The tunnel construction machine A of the present invention generally consists of a machine frame f constructed by a plurality of supports 24 and upper and lower beam members 25, 25 on a pallet e having a flat, reverse convex shape and a rectangular plane. It is equipped with mechanical equipment for each type of work required for shoring erection and primary lining.

26, 27, 28 are left and right upper beam members 25, 2
The slider has an approximately H-shaped cross section and is mounted in parallel from side to side on a plurality of sleepers 20 spanning between 5 spaces. When the sprocket 32 is rotated by the hydraulic motor 31 with a reduction gear, it is pulled by the chain 33 and slides in the front and rear direction.

34, 35, 36 are sliders 26, 27, 2
Each carriage has wheels 37 and bearings 38 that are pivotally supported on the left and right sides of the sliders 26, 27, 28, and the upper half rails 26', 27', 28' of each carriage. The traveling is guided by the sprocket 4 by a hydraulic motor 34 with a reduction gear mounted on each carriage.
When it rotates 0, it is pulled by the chain 41 and rotates in the front and back direction.

Of the above-mentioned carriages, a well-known spraying robot g is mounted on the central carriage 35, and a well-known erector h for shoring erection with a rock drill is mounted on the carriages 34 and 36 on both sides.

Therefore, the robot g and the erector h can move forward and backward within the total length of the designed sliding lengths of the sliders 26, 27, 28 and the designed running lengths of the carriages 34, 35, 36.

The above-mentioned slighter 27 on which robot g is mounted
is set to slide on the front half of the top surface of the machine frame f, and a known slider is installed behind the slider 27, that is, at the rear half of the top surface of the machine frame f, between the sliders 26 and 28 on both sides. A dust collector is installed.

Reference numerals 42 and 43 denote sliders having an H-shaped cross section and installed on the left and right sides of the machine frame f.
In the same way as steps 6, 27, and 28, move the inside of the guide plate 45 containing the bearing into the machine frame f.
When a sprocket 47 is rotated by a hydraulic motor 46 with a speed reducer, it is pulled by a chain 48 and slides in the front and back direction.

49 and 50 are carriages on a flat plate fitted in the upper halves of the sliders 42 and 43, and each carriage is
It travels in the same manner as the carriages 34, 35, and 36 mentioned above, that is, the left and right side wheels 51 and bearings 52 are guided by the upper half rails of the sliders 42 and 43. When the sprocket 54 is rotated by the hydraulic motor 53 with a speed reducer, it is pulled by the chain 55 and rotates in the front-rear direction.

A known charging deck i is mounted on these carriages 49, 50. Therefore, this charging deck i is slider 4.
It is possible to move forward and backward within the total length of the designed sliding length of the carriages 2 and 43 and the designed running length of the carriages 49 and 50.

K is a curtain device, which surrounds the dust collector j and stretches a curtain between the dust collector j and the surrounding surface of the mine to prevent shotcrete dust from scattering behind the dust collector j. It is designed to prevent dust and collect dust effectively, and its structure is as follows.

Reference numeral 56 denotes a left-right undulating pivot rod whose base end is rotatably supported on the outer end mounting plate 29' of the sleeper 29 which protrudes to the left and right outer sides of the dust collector j; It is a hydraulic cylinder whose base end is pivotally supported on the horizontal member 58 on the outer end so as to be able to move vertically.
6, and by the expansion and contraction of the piston rod 57', the left and right undulating rotation rods 56 are undulated between the upright position at right angles to the sliders 26 and 28 and the down position parallel to the sliders 26 and 28. Rotate.

59 is a horizontal rotation rod whose base end is horizontally rotatably supported below the base end shaft fulcrum of the left and right undulating rotation rods 56;
Reference numeral 60 denotes a hydraulic cylinder whose base end is pivotally supported on the upper beam member 25. The tip of the piston rod 60' is pivotally supported on the horizontal rotation rod 59.
By the expansion and contraction movement of 0', the left and right horizontal rotation rods 59
is rotated horizontally between a position perpendicular to the sliders 26 and 28 and a position parallel to them.

A rotary shaft 61 is rotated by a hydraulic motor 62 fixed to the bases of the left and right water-cooled turning rods 59, and is supported in parallel with the horizontal turning rod 59.

63 is a curtain stretched between the upper ends of the left and right undulating rotation rods 56, 64 is a curtain stretched between the undulation rotation rod 56 and the horizontal rotation rod 59, and 65 is a curtain that can be wound around the rotary shaft 61. The curtain 66 is an auxiliary rod attached to the center of the curtain 64.

The curtain device k having the above-mentioned configuration may be closed at the rear as shown in FIGS. 1 and 6 when not in use, and opened as shown in FIGS. 2 and 8 when in use, or the curtain 63, The outer shapes of 64 and 65 are shaped to fit as closely as possible to the inner peripheral surface of the tunnel.

Reference numeral 67 denotes a vertical movement device such as an outrigger or a jack provided at least at the four front, rear, left, right, and left corners of the machine frame f, which allows the height of the tunnel construction machine A of the present invention at the installation location such as the face to be appropriately adjusted and set. do.

l is a spraying machine, m is a quick-setting agent injection device, n is an air dryer, o is a mortar mixer, and p is a mortar pump, all of which are known. is installed on top.

Self-propelled transportation vehicle B has a tractor head q,
It is connected to a low-floor chassis r that is U-shaped in plan and has an open rear side, and an inner frame s that is U-shaped in plan and L-shaped in cross-section and also has an open rear side is mounted inside this low-floor chassis r so as to be vertically movable. It's on a shelf. That is, the inner frame s is connected to the piston rods 69 of a plurality of hydraulic cylinders 68 whose base ends are attached to a plurality of required locations of the low-floor shear rack r via a connecting rod 70, and the piston rods 69 of the plurality of hydraulic cylinders 68 are attached to the low-floor shear chassis r at required locations, and the inner frame s is connected to the piston rods 69 of a plurality of hydraulic cylinders 68 whose base ends are attached to a plurality of required locations of the low-floor shear chassis r. It moves up and down horizontally by the height.

This self-propelled transportation vehicle B moves backward,
By inserting the inner frame s under the pallet e from its open rear side and moving the inner frame s upward, the tunnel construction machine A of the present invention
The inner frame can be loaded and transported to the desired installation location, and once the inner frame is lowered and lowered to the ground at the installation location,
By moving forward, the inner frame s can be removed from the pallet e.

After drilling, charging, and shearing operations are performed in an appropriate manner, the tunnel construction machine of the present invention is used to perform shoring and primary lining. The machine A is transported by a self-propelled transport vehicle B, lowered to a predetermined position on the face, and its height is appropriately adjusted and installed using the vertical movement device 67.

Next, the shoring erection erector h, the spraying robot g, and the charging deck i are moved by the movement of the carriages 34, 36, 35, 49, and 50 and the sliding of the sliders 26, 28, 27, 42, and 43. Move back and forth as appropriate to erect shoring and perform primary lining with shotcrete, lock bolts, etc. In particular, when spraying concrete as described above, by using a curtain device k, it is possible to prevent dust from scattering to the rear of the mine.

After the primary lining is stabilized, a secondary lining is performed using known methods, ie, using forms, concrete pumps, truck mixers, etc.

In addition, the said curtain device can also be made into an air curtain, for example.

[Effects of the Invention] The machine of the present invention has a machine frame set up on a pallet, and the upper stage of the machine frame is equipped with a spraying robot and a shoring erection erector with a rock drill that can move forward and backward. Each is equipped with a charging deck that can move forward and backward. Furthermore, a dust collector is installed on the upper stage, and a curtain device is installed around this dust collector, and the lower stage is equipped with a sprayer, quick setting agent injection device, air dryer, mortar mixer, mortar pump, etc. In other words, since it has the various equipment necessary for shoring erection and primary lining, it eliminates the trouble of replacing and setting up mechanical equipment for each type of construction, and allows for easy construction of the desired shoring. Compounding and primary lining can be carried out.

Moreover, at that time, the face is partitioned by a curtain device to prevent dust from scattering into the rear space of the mine, and the dust can be efficiently collected by the dust collector.

Therefore, unlike the conventional method of replacing and installing specialized mechanical equipment for each type of work, this method improves the operating rate of the machine and reduces the possibility of cluttering the mine or deteriorating the working environment. Become.

Furthermore, since pallets without a machine frame can be mounted on the low-floor chassis of a self-propelled transport vehicle, the height of the machine frame can be made sufficiently high, and the The self-propelled vehicle can be used not only to transport the machine of the present invention to a predetermined position at the face, but also to transport containers for sliding out, so it is possible to reduce the number of mechanical devices with drive sources in the mine, which is economical. It has the effect of not contaminating the working environment.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a side view of the device installed on the face, Fig. 2 is a front view, Fig. 3 is a schematic plan view, and Fig. 4 is a view of the slider and carriage. Fig. 5 is a longitudinal sectional view of the right half of the same as above, Figs. 6, 7, and 8 are perspective views of the curtain device portion, Fig. 9 is a front view of the main parts of the same as above, Fig. 10
The figure is a plan view of the self-propelled transportation vehicle, and FIG. 11 is a front view of the main parts of the same. q...Tractor head, r...Low floor chassis, B...Self-propelled transportation vehicle, e...Pallet, f
...Machine frame, g...Shotting robot, h...Shoring erection erector with rock drill, i...Charging deck, j...Dust collector, k...Curtain device, l...Shotting machine , m...Quick setting agent injection device, n
...Air dryer, o...Mortar mixer, p...Mortar pump.

Claims (1)

[Claims] 1. A self-propelled transportation vehicle consisting of a low-floor chassis connected to a tractor head, with a machine frame set up on a pallet that can be mounted on the low-floor chassis, and a spraying robot and a jackhammer attached to the upper stage of the machine frame. A shoring erection erector and a charging deck are mounted on the middle stage so that they can move forward and backward, a dust collector is installed on the upper stage, and a curtain device is erected around this dust collector, and further, This tunnel construction machine is characterized by being equipped with a sprayer, quick-setting agent injection device, air dryer, mortar mixer, mortar pump, etc. on the lower stage.