KR101698445B1 - rock fracture method and apparatus utilizing sliding boom - Google Patents

Abstract

The present invention relates to a rock breaking excavation method using a sliding boom, which is slidably installed in a housing part rotatably installed at an end of a main boom provided in a main body, installed in a main boom and a housing member, A first crusher installed in an end portion of the sliding boom, and a second crusher installed in the main body to rotate the main boom above the car body to bring the crusher into close contact with the crushing portion of the tunnel ceiling or the side wall, A second arm crushing step of crushing the arm of the ceiling of the underground tunnel by the first crushing step and crushing the arm by advancing the sliding boom to the housing member by the third actuator driving part; And an excavation step.
The rock breaking excavation method of the present invention can solve the fundamental problem that the main boom of the excavator is rotated so that the crushing force (feed force) in the longitudinal direction of the main boom can not be recovered, thereby improving the crushing and excavation efficiency.

Description

{Rock fracture method and apparatus using sliding boom}

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a rock breaking method and a rock breaking apparatus for the same, and more particularly, to a sliding rock breaking apparatus for rocking a boom in a tunnel, And to a rock crushing apparatus for the same.

In tunnel excavation, the selection of the tunnel method is based on a comprehensive review of the safety, economics, and ease of construction based on the geological conditions of the excavation site. Tunnel boring machine (TBM) method, shield method, semi shield method, Messer Shield method, pipe loop method, Pipe Roof Method).

The NATM method has been proved to be superior in economical efficiency and stability compared to the conventional method, and is applied to most tunnels in urban areas and mountainous areas. If the conventional method is to use steel steel rib and concrete lining as a main supporting material, the NATM method can be applied to the mortar as a main supporting material such as shotcrete, rock bolt, (Rock Bolt) is used to strengthen the excavation surface, so that the construction can be effectively performed even in a soft rocky area.

The above-mentioned NATM method has an advantage that it can construct a tunnel regardless of the influence of the soil and the ground because the ground itself around the tunnel acts as a supporting post as described above, without building a support. However, there are disadvantages such as a fallout caused by blasting, destruction of surrounding natural environment, and generation of serious noise, a large amount of support materials (rock bolts, shotcrete) are required and a lot of equipments such as blasting equipments, It is disadvantageous for tunnel excavation.

Tunnel boring machine (TBM) method is a method that is mainly used in tunnel construction in areas where blasting work is impossible due to normal gunpowder loading (submarine tunnel, weak ground). This TBM method is a tunnel boring machine called TBM (tunnel boring machine).

 In the tunnel excavation method using the tunnel excavating machine, the excavation machine must excavate the wall surface and the ceiling in a relatively narrow space, so that the workability is not easy. When the part for excavating the tunnel is made of rock, the excavation work is performed in a limited narrow space, and thus the operation of the equipment is restricted. Particularly, when a ceiling of a tunnel and a sidewall close to the ceiling are excavated by attaching a nipper, a breaker, a bucket or the like to the boom using an excavator, which is a conventional excavator, when the boom of the excavator is lifted upward, There is a problem that it is not possible to apply pressure for excavation to a breaker, a bucket, and the like. Since the attachment for excavation, that is, the breaker or the nipper can not be advanced in a state where the boom of the excavator is held, excavation in the upward direction is impossible.

Korean Patent Registration No. 1054380 discloses a tunnel excavation method, and Korean Patent Publication No. 2008-039369 discloses a vibrationless tunnel excavation method and its apparatus.

Korean Patent Registration No. 1054380. Korean Patent Publication No. 2008-039369.

It is an object of the present invention to provide a method for drilling an underground tunnel, which is easy to apply crushing or excavating force for crushing an arm when crushing an arm of a ceiling and a relatively high wall surface, and further, A rock breaking method using a sliding boom which can be smoothly performed, and a rock breaking apparatus therefor.

Another object of the present invention is to provide an apparatus for crushing rocks using a sliding boom capable of moving an attachment for excavation in an excavation direction, thereby improving excavation efficiency in an upward direction, and a rock crushing apparatus for the same.

According to an aspect of the present invention, there is provided a method for excavating an ammunition using a sliding boom, the method including sliding a slider on a housing part rotatably installed on an end of a main boom provided on the main body, An arm crusher installing step of installing an arm crusher at an end of a sliding boom which is moved forward and backward by an actuator,

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A first arm crushing and excavating step of rotating the main boom provided in the main body part above the car body to bring the arm crusher into close contact with the crushing part of the tunnel ceiling or the side wall to break the arm;

And a second arm crushing and excavating step of crushing the arm by crushing the arm of the ceiling of the underground tunnel by the first crushing and excavating step and advancing the sliding boom with respect to the housing member by the driving unit, .

According to an aspect of the present invention, there is provided an apparatus for shredding a rock using a sliding boom, comprising: a main boom installed in a main body; a housing member rotatably installed at an end of the main boom; A sliding boom slidably installed on the housing member and provided at an end thereof with an arm crusher for excavation; and a sliding boom provided on the housing member and the sliding boom, And a third actuator for moving the sliding boom forward and backward while the third actuator is independently driven to perform the arm breaking operation. do.

The rock breaking method using the sliding boom of the present invention and the rock crushing apparatus for the same can enlarge the crushing area of the rock crusher in a narrow space in excavating a tunnel in the ground, have.

In particular, the rock crushing apparatus of the present invention can pierce an upper region of a ceiling and a wall which can not be pierced by using a crushing machine such as a conventional excavator.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing a state in which a tunnel excavation operation is performed by an arm crushing apparatus using a sliding boom according to the present invention;
Fig. 2 is a perspective view of the main boom of the rock breaking apparatus shown in Fig. 1, in which a sliding boom is installed. Fig.
3 is a hydraulic circuit diagram showing a third actuator driving unit for moving the sliding boom back and forth,
Fig. 4 is a side view showing the rock-breaking state by the vibration nipper installed on the sliding boom,
5 is a side view showing a state in which a bucket is installed on a sliding boom to excavate a tunnel.

The present invention relates to a rock crushing method using a sliding boom for crushing a soft rock or a light rock when excavating a tunnel in the ground, and an apparatus for crushing rock for a tunnel for performing the same, and one embodiment thereof is shown in FIGS. 1 to 5 .

Referring to the drawings, the apparatus for crushing rocks 10 for a tunnel according to the present invention is capable of excavating sandstone, light rock, soft ground, etc. when excavating a tunnel installed in the ground, , And a main boom (20) installed in the main body (11). Although not shown in the figure, the main body 11 may include an endless track for movement thereof, an engine for driving, and a hydraulic oil pumping unit for driving various actuators. The main boom 20 mounted on the main body part 11 is connected to the main body part 11 at one end thereof by a hinge shaft and the other end thereof is rotatably installed at the main body part 11 in the up and down direction. The rotation of the main boom 20 relative to the main body 11 may be formed by a hydraulic cylinder which is a first actuator 21 having both ends connected to the main body 11 and the main boom 20.

At the end of the main boom 20, a housing member 30 having a guide hollow portion 31 formed in a longitudinal direction thereof is rotatably installed. The housing member 30 is coupled to the main boom 20 by a support bracket portion 32 extending downward from the lower surface of the housing member 30. The support bracket portion 32 is connected to the main boom 20 And a hinge shaft 33, as shown in Fig. The housing member 30 is hinged to the second rod 34a of the second actuator 34 installed on the main boom 20 and is rotated about the main boom 20.

A sliding boom (40) is installed on the guide hollow portion (31) of the housing member (30) so as to be slidable with respect to the housing member (30). The sliding boom 40 slidably installed on the housing member 30 is moved forward and backward by the housing member 30 and the third actuator 50 having both ends connected to the sliding boom 40, 40 are provided with an excavator attachment such as an arm crusher 70, a bucket, a ripper, a breaker, or the like for crushing the arm. The attachment may be installed variously according to the working conditions of the excavator.

The third actuator 50 is independently driven and includes a third actuator driver for advancing and retracting the sliding boom 40 during the rock breaking. The third actuator 50 is made of a hydraulic cylinder, the main body of the hydraulic cylinder being hinged to the housing member 30, and the rod of the hydraulic cylinder being hinged to the sliding boom 40. The third actuator is not limited to the above-described embodiment and may be of any structure capable of moving the sliding boom 40 slidably in the guide hollow portion (not shown) of the housing member 30 forward and backward. The third actuator 50 includes an independent third actuator driver 60 for advancing and retracting the sliding boom 40 during the rock breaking. The third actuator driver 60 for independently driving the third actuator 50 includes first and second ports 61 and 62 for supplying the hydraulic pressure of the third actuator 50, The first and second connection pipes 63 and 64 for supplying and discharging the lubricating oil and the first and second connection pipes 63 and 64 to selectively supply hydraulic oil to the first and second ports, A hydraulic pump 66 connected to the second connection pipe, and a relief valve 67. The control valve 65 is provided with a control valve 65, The third actuator driver 60 is not limited to the above-described embodiment, and may be a structure capable of driving the third actuator 50 independently.

Meanwhile, the rock crusher installed at the end of the sliding boom 40 may be a vibration nipper, a hydraulic breaker, or the like as described above, but is not limited thereto. It is preferable to use a vibration nipper developed and filed by the inventor of the present invention (Korean Register No. 878296), and the hydraulic breaker is preferably a silent hydraulic breaker developed by the present inventor (Korean Patent Registration No. 1025030).

The method of crushing a tunnel for exclusive use of a tunnel according to the present invention using the rock crushing device constructed as described above is slidably installed in a housing portion rotatably provided at an end of a main boom 20 installed in the main body 11, And an arm crusher 70 is installed at the end of the sliding boom 40 which is installed on the housing 20 and the third actuator 50 forward and backward.

When the installation of the rock breaking device is completed, the rock crusher 100 installed on the end of the main boom 11 is rotated so that the end side of the main boom 20 installed on the main body 11 is positioned higher than the main body, A first arm breaking and excavating step of crushing the arm by bringing the sliding boom into contact with the crushing part of the tunnel ceiling or the side wall and crushing the arm of the ceiling of the underground tunnel by the first crushing and excavating step, The main boom 40 is advanced to the sliding boom 40 by the third actuator driving unit 60 independent of the housing member 30 so that the main boom 11 is pressed against the main body 11 of the excavator, And a second arm crushing and excavating step in which pressure is transmitted to the rock crusher (70) in the longitudinal direction by the rotational force of the crusher (20) and excavated the tunnel.

The crushing method using the crushing device for a tunnel according to the present invention constructed as described above will be described in more detail as follows.

As shown in FIGS. 1 and 4 and 5, the rock crushing excavation using the sliding boom 40 performs excavation work on the ground, the wall surface, and the ceiling in the process of excavating a tunnel in the earth. In the case of rock crushing using the crusher, the crusher is provided at the end of the boom of the main body, and the crusher is simply crushed by the rotational force of the boom. Therefore, Could not be provided.

That is, when the ceiling is excavated, the rock crusher installed at the end of the sliding boom 40 can apply an external force only in the rotating direction, so that the crushing and excavation of the rock can not be performed smoothly.

However, when the arm is crushed or excavated using the rock breaking apparatus of the present invention, as shown in FIGS. 1 and 5, when the main boom 20 is rotated upward to perforate and excavate the side wall of the ceiling, The rock crusher 70 installed at the end of the boom 40 is positioned in the oblique direction on the side wall. In this state, the first carburization and excavation steps are performed. In this state, the rock crushing operation is performed by excavation and crushing of the rock by the rock crusher 70, that is, the vibration range of the blade of the vibration nipper and the rotation of the main boom.

In order to increase the crushing force of the vibration nipper which is the rock crusher in the process of performing the first rock crushing and excavating step, the third actuator driver 60 is operated to move the sliding boom 40 to the housing And is advanced relative to the member (30). In this way, a second arm crushing and excavating step is performed in which the crushing force is applied to the vibration nipper, which is the rock crusher 70, by moving to the front side, thereby increasing excavation and crushing force of the arm. The main boom rotates in the radial direction with respect to the main body part 11 due to the performance of the second arm crushing and excavation steps and thus fundamentally solves the problem of existing equipment which can not provide crushing and excavating forces radially outward . The sliding boom 40 can rotate the housing member 30 at a predetermined angle by the second actuator with respect to the main boom 20 before the crushing and excavation process or the crushing and drilling operations are performed And the armature breaker 70 can be rotated by the fourth actuator 80 provided on the housing member 40. [

5, the bucket 90 is installed at the end of the sliding boom 40. In the case of excavation work, the main boom rotates more than the main body while the sliding boom moves back and forth as described above, 90 can be prevented from advancing.

 More specifically, the rock crushing excavation method using the slanting boom is performed by using a conventional excavator to excavate and crush rocks in the outward direction beyond the radius of the main boom 20 for excavation and crushing, Can be provided to the rock crusher (70), so that the working efficiency due to the excavation of the tunnel can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The rock breaking excavation method and apparatus using the slide boom according to the present invention can be widely applied to construction sites for civil engineering and construction.

Claims (2)

delete A main boom 20 installed at the main body 11; a housing member 30 rotatably installed at an end of the main boom 20 and having a hollow portion 31; A second actuator 34 mounted on the housing member 30 and rotating the housing member 30 with respect to the main boom 20 and a second actuator 34 slidably mounted on the hollow portion 31 of the housing member 30 And a sliding boom 40 installed at an end of the sliding boom 40 and provided with an arm shaver 70 for excavating the sliding boom 40. The sliding boom 40 is installed on the housing member 30 and the sliding boom 40, And a third actuator 50 for moving the sliding boom 40 forward and backward while independently driving the third actuator 50 to thereby move the sliding boom 40. [ 3 actuator driving unit 60,
The third actuator driver 60 for independently driving the third actuator 50 includes first and second ports 61 and 62 for supplying the hydraulic pressure of the third actuator 50, The first and second connection pipes 63 and 64 for supplying and discharging the lubricating oil and the first and second connection pipes 63 and 64 to selectively supply hydraulic oil to the first and second ports, And a relief valve (67) connected to the second connection pipe, wherein the hydraulic pump (66) is connected to the control valve (65).

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