KR102622600B1 - Excavating equipment using wire saw and excavating method using the same - Google Patents

Abstract

The wire saw excavation device of the present disclosure includes an entry rock installed on an excavation truck and inserted into a plurality of drilled entry holes in order to excavate the rock mass to be excavated using a wire saw. The wire saw excavator includes a rod-shaped main body, a plurality of pulleys mounted on both ends of the main body in one of the horizontal, vertical, and diagonal directions, and two rows of pulleys can be arranged in each direction. One wire saw wired to one pulley can cut between entry holes one by one, and multiple wire saws wired to multi-directional pulleys are connected to drive rollers in each direction to cut between entry holes in all directions at once. can do.

Description

Excavating equipment using wire saw and excavating method using the same}

The present disclosure relates to an excavator for excavating rock without blasting using an access arm wired with a wire saw and three frames installed on a bogie, and an excavation method using the same.

When constructing a tunnel by digging into the ground, a blasting method is used in the case of a location where bedrock is buried, or a tunnel is excavated using a TBM (Tunnel Boring Machine).

The blasting method (NATM) currently used in most tunnel sites involves drilling a hole for blasting, then loading gunpowder and blasting to excavate the rock in the relevant area. The blasting method performs many processes, such as drilling, charging, blasting, removal of support, rock bolt construction, and shotcrete work, with individual equipment. There are no special safety measures against the risk of rock collapse in the upper part, the construction cost is relatively low, and no alternatives have been developed. Because of this, it has been implemented repeatedly until now. Such blasting methods leave irreparable scars in the lower part of the city, which are different from the construction of buildings on land, such as ground deformation, collapse of tunnels, underground water seepage, sinkholes, and collapse of upper buildings due to frequent top collapse accidents during work and shock from blasting.

TBM is a circular rotary excavator that crushes and excavates rock by rotating a cutter head equipped with multiple disk cutters. Excavation using TBM is faster than the blasting method, improves safety, and eliminates the problem of pollution. It has the advantage of being significantly low. However, TBM is a very expensive device, so it is not easy to use for small and medium-sized tunnel excavation, and it has difficulty in coping with changing terrain like Korea, especially in narrow cylindrical enclosed spaces. Due to lack of capacity, a number of problems are currently being reported, such as collapse of the upper part due to soil runoff, collapse of the tunnel during work or after completion, and sinkholes.

To solve this problem, technology for cutting and excavating rocks using a wire saw is being developed. To excavate a tunnel using a wire saw, the surface to be excavated is divided, and an entry hole is drilled along the perimeter of the divided area. Afterwards, an entry arm equipped with a wire saw is inserted into two adjacent entry holes, and the wire saw excavator is operated to cut the cutting line of the compartmentalized area. However, there was a problem that the work time required for inserting and removing the entry arm to cut a plurality of cutting lines was excessively increased.

Meanwhile, with respect to the pulley disclosed in Registration Patent No. 10-2242613 (registration date: April 15, 2021), this disclosure improves the insufficient functions of the multi-directional pulley and provides horizontal, vertical, and diagonal driving rollers and a driving frame for excavation. When applied to a bogie, it promotes mobility and improved work ability. In addition, Japanese Public Utility Model Publication No. 03-081707 (publication date: 1991.08.21.), Korean Patent No. 10-1594882 (registration date: 2016.02.11.) and most existing wire saw cutting technologies rotate in one direction. Since it is necessary to repeatedly perform dozens of cutting operations by cutting one cutting line or one section each using one wire saw wired to two entry arm pulleys, it is not currently applicable to tunnel excavation sites due to excessive work time. On the other hand, the present disclosure seeks to solve the above problem by wiring a plurality of wire saws to a plurality of entry arm pulleys and simultaneously cutting the cutting lines between all entry holes at once.

The purpose of the present disclosure is to provide improved work efficiency and a safe work environment by quickly cutting rock without blasting using an excavation truck equipped with a wire saw and simply transporting the cut blocks with a forklift or the like.

In order to achieve the above object, the wire saw excavation device according to an embodiment of the present disclosure is installed on an excavation truck to excavate the rock mass to be excavated using a wire saw, is inserted into a plurality of drilled entry holes, and includes an entry rock. do. The wire saw excavator includes a rod-shaped body; a plurality of pulleys mounted on both ends of the main body in any one of horizontal, vertical, and diagonal directions; The plurality of pulleys may be arranged in two rows in each direction, one wire saw wired to one pulley can cut each entry hole one by one, and the plurality of wire saws wired to the multi-directional pulley are connected to the driving roller in each direction. It is possible to cut between insert holes in all directions at once.

The excavation bogie according to an embodiment of the present disclosure can excavate the target surface of rock where a plurality of entry holes are formed using a wire saw. The excavation bogie includes a movable main body frame with wheels at the bottom; Entry arms each inserted into the plurality of entry holes and including a plurality of pulleys at both ends on which wire saws are wired; A wire saw that circulates in an endless orbit along the pulleys and driving rollers at both ends of the entry arm; An entry arm front end support frame supporting the entry arm front end; An entry arm rear end support frame supporting the entry arm rear end; A driving frame equipped with a driving roller; The driving frame can cut rock while moving backwards from the target surface when the wire saw circulates by rotating the driving roller.

In the excavation bogie according to an embodiment of the present disclosure, the wire saw that circulates between the entry arm, the target surface, and the driving roller starts from the driving roller and cuts the target surface through the entry arm rear end pulley and the entry arm front pulley inserted into the entry hole. While doing so, it returns to the driving roller after passing through the entry arm front pulley and entry arm rear end pulley in the same direction of the neighboring entry hole. One wire saw can cut one cutting line, and the multi-directional pulley inserted into each entry hole A plurality of wire saws wired in can cut in all directions between neighboring entrance works, and the wire saws in each direction are gathered together and rotated on the driving rollers arranged on the driving frame in the horizontal, vertical, and diagonal directions to move the driving frame. When retracted, all cutting lines between the entry holes on the target surface can be cut at once.

The plurality of entry holes include a first entry hole, a second entry hole, and a third entry hole arranged sequentially in a straight line, and the wire saw is inserted into the first entry hole and the second entry hole. , a first wire saw that cuts the first cutting line disposed between the first entry hole and the second entry hole, and is inserted into the second entry hole and the third entry hole, the second entry hole and It may include a second wire saw for cutting a second cutting line disposed between the third entry holes.

The pulley may include a first groove on an outer peripheral surface that guides the circulation path of the first wire saw and a second groove on an outer peripheral surface that guides the circulation path of the second wire saw.

The driving roller includes a plurality of first rollers provided to rotate about a first axis, a plurality of second rollers provided to rotate about a second axis in a different direction from the first axis, and a plurality of diagonally disposed rollers. It may include a third roller.

The support frame at the front end of the entry arm prevents the shaking and impact of the entry arm when the bogie moves, supports the front end of the entry arm to allow insertion and removal of the entry hole as the entry arm moves back and forth, and provides a gap between the entry hole and the entry arm when inserting the entry arm. It guides easy insertion by adjusting, and the support frame at the rear end of the entry arm fixes the rear end of the entry box and inserts the entry arm into the entry hole while moving forward. After insertion, the frame is fixed to the main frame so that it can be supported when the drive frame is retracted. .

The support frame at the front end of the entry arm and the support frame at the rear end of the entry arm are composed of a grid-shaped inner side and border lines in the same form.

The driving frame is located behind the frame at the rear end of the entry arm and may be equipped with a driving roller that rotates horizontally, vertically, and diagonally.

1 is a perspective view of an entry arm according to an embodiment of the present disclosure.
Figure 2 is a perspective view showing an excavation bogie according to an embodiment of the present disclosure.
Figure 3 is a diagram showing an excavation bogie cutting rock mass.
Figure 4 is a diagram showing the operation of exporting a cut block.
Figures 5 and 6 are diagrams showing the first driving roller and the second driving roller being driven.
Figure 7 is a diagram in which the entry arm is supported by the entry arm front end support frame and the entry arm rear end support frame and the wire saw is wired to the drive roller of the drive frame.
Figure 8 is a diagram showing a state in which the entry arm of Figure 1 is inserted into the entry hole.
Figure 9 is a diagram showing the process of excavating a vertical hole by an excavation bogie according to an embodiment of the present disclosure.
Figure 10 is a diagram showing a third roller connected to the horizontal first roller and the vertical second roller disposed on the drive frame with gears.
Figure 11 is a diagram of simultaneously performing cutting work and cutting block removal work using a separately manufactured excavation truck.
Figure 12 is a view showing the front drill installed on the front of the main body frame, the drill moving device, the work steps, and the bogie with the support drill installed.
Figure 13 is a diagram showing a bogie equipped with a front drill, a support drill, and a shotcrete device performing drilling and support work simultaneously.

The embodiments described below are shown as examples to aid understanding of the present disclosure, and it should be understood that the present disclosure can be implemented with various modifications, different from the embodiments described herein. However, in describing the present disclosure below, if it is determined that detailed descriptions of related known functions or components may unnecessarily obscure the gist of the present disclosure, the detailed descriptions and specific illustrations will be omitted. Additionally, in order to facilitate understanding of the disclosure, the attached drawings are not drawn to scale and the dimensions of some components may be exaggerated.

The terms used in this specification and claims are general terms selected in consideration of the function of the present disclosure. However, these terms may vary depending on the intention of the technician working in the field, legal or technical interpretation, and the emergence of new technologies. Additionally, some terms are arbitrarily selected by the applicant. These terms may be interpreted as defined in this specification, and if there is no specific term definition, they may be interpreted based on the overall content of this specification and common technical knowledge in the relevant technical field.

In this specification, expressions such as “have,” “may have,” “includes,” or “may include” refer to the presence of the corresponding feature (e.g., a numerical value, function, operation, or component such as a part). , and does not rule out the existence of additional features.

In addition, since this specification describes the components necessary for explaining each embodiment of the present disclosure, it is not necessarily limited thereto. Accordingly, some components may be changed or omitted, and other components may be added. Additionally, it may be distributed and deployed in different independent devices.

Furthermore, embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present disclosure is not limited or limited by the embodiments.

Hereinafter, the present disclosure will be described in more detail with reference to the attached drawings.

Figure 2 is a perspective view of an excavation bogie according to an embodiment of the present disclosure.

The excavation bogie 1 according to an embodiment of the present disclosure can perform non-blasting cutting work.

Before installing the excavation bogie of the present disclosure, a plurality of entry holes (5) are drilled on the target surface (S) according to the cutting section. A cutting section refers to a set of sections made up of cutting lines that must be cut to excavate rock.

Figure 7 shows three frames connected to each other and cutting rock while moving back and forth.

The work details in FIG. 3 are as follows.

After the drilling work is completed, the pulley of the front end of the entry arm mounted on the support frame (100) of the front end of the entry arm to which the wire saw is wired is placed in close contact with the entry hole (5) to adjust the gap, and then the support frame of the rear end of the entry arm to which the rear end of the entry arm is fixed. (200) is advanced to completely insert the entry arm (500) into the entry hole (5).

When the entry arm 500 is completely inserted into the entry hole 5, the target surface, the entry arm front end support frame 100, and the entry arm rear end support frame 200 are in close contact with each other.

Afterwards, while rotating the drive roller 400 connected to the entry arm pulley and the wire saw, the drive frame 300 on which the drive roller 400 is installed is moved backwards, and the wire saw cuts the rock due to the tension with the fixed entry arm frame ( see Figure 3). At this time, all horizontal, vertical, and diagonal cutting lines between entry holes are cut in all directions at once by a wire saw rotating in each direction.

The work details in FIG. 4 are as follows.

After cutting, the truck is moved backwards, the lower door 140 is opened, and the cut rock block 600 is transported out using a truck 800 using equipment such as a forklift 700 (see FIG. 4).

In other words, if the rock is cut to a predetermined depth according to the cutting line of the cutting section and the end of the rock located at the predetermined depth is cut, it can be taken out using equipment according to the cutting section. By repeating this process, you can obtain stone in a usable form at the same time as excavating the tunnel.

An entry hole 5 is formed at a point where one cutting line of the cutting section meets the other cutting line. The entry hole 5 may be drilled using a jumbo drill, but is not limited thereto. An entry arm 500 on which a wire saw (W) is wired is inserted into the entry hole 5. The entry arm 500 is formed long in one direction so that it can be inserted into the entry hole 5, and its cross-section may be square or circular, but is not limited thereto.

With the entry arm 500 inserted into the entry hole 5, when the driving roller 400 rotates, the wire saw (W) circulates the pulley of the entry arm 500 and the driving roller 400, and is driven simultaneously. When the roller 400 moves backward, the rock mass is cut along the cutting line. In particular, as will be described later, the excavation bogie of the present disclosure can perform cutting work on a plurality of cutting sections simultaneously.

The entry arm 500 is each inserted into a plurality of entry holes 5 and may include a plurality of pulleys 510, 520, and 530 to which a wire saw (W) is wired. The plurality of pulleys 510, 520, and 530 may rotate in any one of horizontal, vertical, and diagonal directions.

The wire saw (W) may be wired in an infinite orbit along the entry arm (500). The wire saw (W) is circularly driven by the driving roller (400).

The entry arm front end support frame 100 may include an outer peripheral frame 110, a first frame (four) disposed in a first direction, and a second frame 130 disposed in a second direction different from the first direction. . For example, the outer frame 110 may have an arch shape, the first frame 120 may be arranged in the horizontal direction, and the second frame 130 may be arranged in the vertical direction. Like the entry arm front end support frame 100, the entry arm rear end support frame 200 may include an outer frame, first and second frames.

The entry arm front end support frame 100 and the entry arm rear end support frame 200 may have a matrix structure in which the first frame 120 and the second frame 130 intersect each other. The entry arm 500 may be installed at a point where the outer frame 110, the first frame 120, and the second frame 130 intersect.

A closed loop-shaped door may be formed at the lower part of each frame (100, 200) disposed on the bogie.

For example, the user can open the door to perform a drilling process and handle the cutting blocks issued by the excavation process.

The entry arm front end support frame 100, the entry arm rear end support frame 200, and the drive frame 300 are installed on rails installed on the main body frame 2 in order toward the target surface and are integrally connected to each other by connecting links. It can move back and forth.

Depending on the site situation, the horizontal excavation bogie (1) can be vertically divided into the first bogie (1-1) and the second bogie (1-2) to perform cutting and block removal at the same time (see Figure 11). . At this time, block removal equipment can pass between the divided bogies. In addition, even during vertical excavation, cutting and removal of cut blocks can be done at the same time by dividing them into semicircular shapes.

The driving roller 400 is wound around a portion of the wire saw (W) and may be supported on the driving frame 300. As the driving roller 400 rotates, the wire saw (W) operates in a circular motion to cut the rock along the cutting line. In addition, as the driving frame 300 moves backward, the driving roller 400 also moves in the opposite direction of the target surface (S), and as a result, the tension of the wire saw (W) is maintained, making it possible to continuously cut rock. there is.

The driving frame 300 can be controlled to move backward from the front when the wire saw (W) circulates by the driving roller 400.

Accordingly, the driving roller 400 rotatably supported by the driving frame 300 can rotate and move backward together with the driving frame 300.

The driving roller 400 may include a plurality of first rollers 410, a plurality of second rollers 420, and a plurality of third rollers 430. The first roller 410 may be provided to rotate about a first axis. The second roller 420 may be provided to rotate about a second axis in a direction different from the first axis. The first axis may be vertically disposed and parallel to the Z-axis, and the second axis may be horizontally disposed and parallel to the Y-axis. The first roller 410 may be arranged horizontally in a horizontal direction, the second roller 420 may be arranged vertically, and the third roller 430 may be arranged diagonally.

The upper and lower ends of the first roller 410 may be rotatably connected to the outer frame 110 of the driving frame 300. The left and right ends of the second roller 420 may be rotatably connected to the outer frame 210 of the driving frame 300. The second roller 420 is disposed ahead of the first roller 410 and may not interfere with the first roller 410. The third roller 430 is connected to the ends of the first roller 410 and the second roller 420 with a gear and can rotate together with the first roller 410 and the second roller 420.

The plurality of entry holes 5 may include a first entry hole (5a), a second entry hole (5b), and a third entry hole (5c) arranged sequentially in a straight line. A first cutting line 6a may be disposed between the first entry hole 5a and the second entry hole 5b. A second cutting line 6b may be disposed between the second entry hole 5b and the third entry hole 5c. The first and second cutting lines 6a and 6b are virtual line segments formed on the target surface S and are cut by a wire saw W.

For example, referring to Figure 5, the first entry hole (5a), the second entry hole (5b), and the third entry hole (5c) may be holes arranged sequentially along the vertical direction parallel to the Z axis. there is. In this case, the first cutting line 6a and the second cutting line 6b may be arranged along the vertical direction.

Meanwhile, referring to FIG. 6, the first entry hole 5a, the second entry hole 5b, and the third entry hole 5c may be holes arranged sequentially along the horizontal direction parallel to the Y axis. . In this case, the first cutting line 6a and the second cutting line 6b may be arranged along the horizontal direction.

However, the arrangement of the first to third entry holes 5a, 5b, and 5c and the first and second cutting lines 6a and 6b are not limited to this.

The wire saw (W) may include a first wire saw (W1) and a second wire saw (W2). The first wire saw (W1) is inserted into the first entry hole (5a) and the second entry hole (5b), and is disposed between the first entry hole (5a) and the second entry hole (5b). The cutting line 6a can be cut. The second wire saw (W2) is inserted into the second entry hole (5b) and the third entry hole (5c), and is disposed between the second entry hole (5b) and the third entry hole (5c). The cutting line 6b can be cut.

According to FIG. 12, the excavation bogie 1 according to an embodiment of the present disclosure includes a drill movable on the outer peripheral surface and the inner surface on the front of the main body frame 2, a work step, and a rock bolt drill movable along the outer peripheral surface ( 30) and a shotcrete device 31 are further included, so that drilling, supporting, and cutting operations can be performed simultaneously with one excavation bogie.

According to Figure 13, the front drill (3) drills the front horizontal entry hole (5) and the upper inclined entry hole (6) for pre-strengthening along the front drill moving rail (4), and then uses the work stairs (8). Then, a steel pipe is inserted into the upper inclined entry hole (6) to reinforce the upper part. At the same time, the support drill 30 and the shotcrete device 31 located behind the work stairs move back and forth to perform support work such as rock bolt work, shotcrete work, and steel support work, thereby simultaneously performing drilling and support work.

The excavation bogie 1 according to an embodiment of the present disclosure may further include a ceiling part 40. The ceiling part 40 is coupled to the main frame 2 and can cover the ceiling of the bedrock. Accordingly, the worker can be safely protected by the ceiling 40 from unintentionally falling rock.

The excavation method using the excavator of FIG. 12 is as follows.

While drilling the target surface using the front drill (3), support work such as rock bolts and shotcrete is performed using the support drill (30).

The entry arm front end support frame 100 is brought close to the entry hole of the target surface where the wire saw is wired to adjust the gap between the entry arm and the entry hole. Next, the support frame 100 at the rear end of the entry arm is advanced to be in close contact with the target surface to insert the entry arm into the entry hole, and then the drive frame is moved backward while rotating the drive roller to cut the rock.

After cutting, the support frame 200 at the rear end of the entry arm is retracted to remove the entry arm from the entry hole, then the bogie is retracted and the lower door is opened to take out the cut block.

5 and 6 are diagrams showing how the first driving roller and the second driving roller are driven.

Referring to Figure 5, a pair of second driving rollers (420a, 420b) to which the first and second wire saws (W1, W2) are wired may be driven to rotate. A pair of second driving rollers 420a and 420b are arranged parallel to each other in the horizontal direction, with a 2-1 driving roller 420a disposed on the upper side and a 2-2 driving roller 420b disposed on the lower side. ) may include.

The first wire saw (W1) is wound around the 2-1 driving roller (420a) and inserted into the first and second entry holes (5a, 5b) to cut the first cutting line (6a). The second wire saw (W 2 ) is wound around the 2-2 driving roller (420b) and inserted into the second and third entry holes (5b, 5c) to cut the second cutting line (6b).

Referring to FIG. 6, a pair of first driving rollers 410a and 410b to which the first and second wire saws W1 and W2 are wired may be driven to rotate. A pair of first driving rollers 410a and 410b are arranged parallel to each other along the vertical direction, with a 1-1 driving roller 410a disposed on the left and a 1-2 driving roller 410b disposed on the right. ) may include.

The first wire saw (W1) is wound around the 1-1 driving roller (410a) and inserted into the first and second entry holes (5a, 5b) to cut the first cutting line (6a). The second wire saw (W 2) is wound around the 1-2 driving roller (410b) and inserted into the second and third entry holes (5b, 5c) to cut the second cutting line (6b). .

That is, in the excavation bogie 1 according to an embodiment of the present disclosure, one wire saw can cut one cutting line, and a plurality of wire saws can cut a plurality of cutting lines simultaneously. In addition, as the driving rollers 400 rotating in different directions rotate and move backward simultaneously with the driving frame 300, cutting lines in different directions can be cut at the same time, so the entire target surface can be cut at the same time. It can be cut.

1 is a perspective view of an entry arm according to an embodiment of the present disclosure. FIG. 8 is a diagram showing a state in which the entry arm of FIG. 1 is inserted into the entry hole.

Referring to Figures 1 and 8, the entry arm 500 includes a main body 501, a stopper 502, a plurality of first pulleys (510a, 520a, 530a), and a plurality of second pulleys (510b, 520b, 530b). ) may include.

The stopper 502 may be disposed in front of the plurality of first pulleys 510a, 520a, and 530a and may have the shape of a disk, but the shape is not limited thereto. When the entry arm 500 is inserted into the entry hole, the stopper 502 may contact the end of the entry hole to guide the insertion depth of the entry arm 500.

The plurality of first pulleys 510a, 520a, and 530a are connected to the front of the main body 501 and can rotate in different directions. The plurality of first pulleys 510a, 520a, and 530a may rotate in the horizontal, vertical, and diagonal directions, respectively, but the number and rotation direction of the pulleys are not limited thereto. The plurality of second pulleys 510b, 520b, and 530b are connected to the rear of the main body 501 and can rotate in different directions. The first pulleys 510a, 520a, and 530a and the second pulleys 510b, 520b, and 530b may be symmetrically arranged about the main body 501.

A plurality of first pulleys (510a, 520a, 530a) are inserted into the entry hole (5), and a plurality of second pulleys (510b, 520b, 530b) are disposed behind the entry arm rear end support frame 200 to use a wire saw (W) ) can guide the movement route.

The wire saw (W) is wired to a pulley rotating in a specific direction among the plurality of first pulleys (510a, 520a, 530a), and a pulley rotating in the specific direction among the plurality of second pulleys (510b, 520b, 530b) can be wired simultaneously.

The pulley may include a first groove (G1) on the outer peripheral surface that guides the circulation path of the first wire saw (W1) and a second groove (G2) on the outer peripheral surface that guides the circulation path of the second wire saw (W2).

Accordingly, the first wire saw (W1) for cutting the first cutting line (6a) and the second wire saw (W2) for cutting the second cutting line (6b) can be driven circularly without interfering with each other.

The plurality of first pulleys 510a, 520a, and 530a and the plurality of second pulleys 510b, 520b, and 530b may each include a pair of guide pulleys P1 and P2. A pair of guide pulleys (P1, P2) are spaced apart from each other and may be rotatable about the same axis.

A first groove (G1) and a second groove (G2) may be formed on the outer periphery of each of the pair of guide pulleys (P1, P2). Accordingly, the wire saws are arranged in two rows without interfering with each other, allowing multiple cutting lines to be cut simultaneously.

Figure 9 is a diagram showing the process of excavating a vertical hole by an excavation bogie according to an embodiment of the present disclosure.

Referring to FIG. 9, the target surface S on which the excavation bogie 1 excavates may be formed horizontally. In other words, the excavation bogie (1) can form a vertical sphere by excavating the bottom surface.

At this time, the driller of the excavation bogie 1 is arranged to face the floor, and the driving frame 300 can rise backward from the entry arm front end support frame 100 and the entry arm rear end support frame 200. there is. At the same time, as the driving roller 400 is driven, the wire saw (W) can excavate the target surface (S) while maintaining tension.

In the above, preferred embodiments of the present disclosure have been shown and described, but the present disclosure is not limited to the specific embodiments described above, and the technical field to which the disclosure pertains without departing from the gist of the present disclosure as claimed in the claims. Anyone with ordinary knowledge can make various modifications, and such modifications are within the scope of the claims.

1: Excavation bogie 2: Main body frame
3: Front drilling drill 4: Front drill moving rail
5: Horizontal entry hole 6: Inclined entry hole
7: Rock bolt entry hole 8: Work stairs
9: Vertical entry hole 10: Wheel
11: Pulley 20: Link
30: Drill for support 31: Shotcrete device
40: Ceiling 41: Ceiling Hall
100: Entry arm front end support frame 150: Outer rail for support
200: Entry arm rear end support frame 110: Outer frame
120: first frame 130: second frame
140: Door 300: Driving frame
400: driving roller 410: first roller
420: second roller 430: third roller
500: Entry arm 600: Cutting block
700: forklift 800: take-out truck

Claims (11)

In the wire saw excavation device including an entry rock installed on an excavation truck and inserted into a plurality of drilled entry holes in order to excavate the rock mass to be excavated using a wire saw,
Rod-shaped body; and
It consists of a plurality of pulleys mounted on both ends of the main body in any one of the horizontal, vertical, and diagonal directions,
The pulley may be provided as two rows of pulleys having the same axis,
The plurality of entry holes are,
It includes a first entry hole, a second entry hole, and a third entry hole arranged sequentially on a straight line,
shooting the wire,
a first wire saw inserted into the first and second entry holes to cut a first cutting line disposed between the first and second entry holes; and
A second wire saw inserted into the second entry hole and the third entry hole to cut a second cutting line disposed between the second entry hole and the third entry hole. Wire saw drilling rig. delete delete delete In the excavation bogie that excavates the target surface of rock using a wire saw,
A main body frame that has wheels at the bottom and can be moved;
A support frame for the front end of the access arm that supports the front end of the access arm; A support frame for the rear end of the entry arm that supports the rear end of the entry arm;
an entry arm supported by the entry arm front end support frame and the entry arm rear end support frame and having a plurality of pulleys mounted on both ends; and
It consists of a driving frame provided with horizontal, vertical, and diagonal driving rollers connected to the entry arm and a wire saw,
The wire saw is wired on cutting lines in all directions between entry holes by entry arm pulleys provided in two rows in each direction,
When the wire saw is placed horizontally, vertically, and diagonally on the driving rollers placed on the driving frame in each direction and rotated, and the driving frame is moved backwards, the cutting lines in all directions between the entry holes on the target surface are cut at once. ,
The entry arm front end support frame is,
When the excavation truck moves, it prevents the shaking and impact of the access arm, which is equipped with multiple pulleys at both ends, and supports the access arm so that the access hole can be inserted and removed as the access arm moves back and forth. When the access arm is inserted, the access hole and the access arm are separated. Adjust the spacing to guide easy insertion
The support frame at the rear end of the entry arm is,
An excavation bogie characterized in that the entry arm is inserted while moving forward by fixing the rear end of the entry arm, and after insertion, the support frame at the rear end of the entry arm is fixed to the main body frame to support the driving frame so that it can cut backwards. delete According to clause 5,
The driving roller is,
a plurality of first rollers provided to rotate about a first axis;
a plurality of second rollers provided to rotate about a second axis in a direction different from the first axis; and
An excavation bogie including a plurality of third rollers arranged diagonally. According to clause 5,
In the main body frame of the excavation bogie,
A front drilling drill that performs front drilling operations;
Drills for working stairs and supports; and
Including a shotcrete device that performs shotcrete work,
An excavation bogie that performs all drilling, support work, and cutting work. delete According to clause 8,
An excavation bogie, characterized in that the excavation bogie is manufactured in segments so that the target surface can be divided and cutting work and cutting block removal work can be performed simultaneously. In the method of using the excavation bogie of paragraph 8,
A step of drilling a horizontal entry hole and an upper inclined entry hole with a drill on the front of the excavation bogie on the target surface of the rock to be excavated, while moving the support drill and the shock concrete device back and forth to perform rock bolt work and shock concrete work;
Wiring a wire saw to a plurality of pulleys and driving rollers at both ends of the entry arm and adjusting the gap so that the entry arm can be easily inserted into the entry hole by approaching the support frame at the front end of the entry arm to the entry hole of the target surface;
After fixing the rear end of the entry arm to the support frame of the rear end of the entry arm, advance the support frame of the rear end of the entry arm so that it is in close contact with the target surface, fully insert the entry arm, fix the frame to the main body frame, and rotate the drive roller to move the drive frame. Cutting the bedrock by moving backwards; and
An excavation method using a wire saw excavation bogie including the step of reversing the excavation bogie after cutting the rock and opening the lower door to take out the cut block.

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