WO2018101791A1

WO2018101791A1 - Soft ground excavation reinforcement apparatus for improved tbm rock tunnel

Info

Publication number: WO2018101791A1
Application number: PCT/KR2017/014011
Authority: WO
Inventors: 안석
Original assignee: 안석
Priority date: 2016-12-02
Filing date: 2017-12-01
Publication date: 2018-06-07
Also published as: CN110023588A; CN110023588B; KR101774713B1

Abstract

Disclosed is a soft ground excavation reinforcement apparatus for an improved TBM rock tunnel, the apparatus comprising: an excavation body (100) comprising a rotating cutter head (110) for drilling and excavating rock by means of rotation, and a forward movement part (120) for moving the rotating cutter head (110) forward; a gripper body (200) provided on an outer surface of the forward movement part (120) of the excavation body (100), and closely attaching to an excavated rock surface so as to support the excavation body (100) when the excavation body (100) moves forward; a reinforcement body (300) interposed between the rotating cutter head (110) of the excavation body (100) and the gripper body (200) so as to reinforce a fault fracture zone when drilling and excavating rock; and a segment (400) constructed on the fault fracture zone by means of the reinforcement body (300). The reinforcement body (300) comprises: a reinforcement body housing part (310) surrounding an outer surface of the forward movement part (120) of the excavation body (100), and comprising a bearing part (311); a reinforcement body rotation part (320) positioned on the circumferential portion of the reinforcement body housing part (310) by being connected with the reinforcement body housing part (310) by means of a support frame part (321), and having an interlocking gear (322) formed along the inner circumferential surface thereof; a reinforcement body rotation motor (330) comprising a drive gear (331) engaged with the interlocking gear (322) of the reinforcement body rotation part (320); a first cylinder part (340 (351)) and a second cylinder part (350) connected with the reinforcement body rotation part (320) by means of reinforcement body brackets (341, 351); a first link part (360) having one side thereof connected with the first cylinder part (340 (351)), and a second link part (370) having one side thereof connected with the second cylinder part (350); and a segment erector (380) having the other side of the first link part (360) and the other side of the second cylinder part (350) connected thereto, and comprising a connecting protrusion part (381) connected with the segment (400).

Description

Soft ground excavation reinforcement device in advanced TBM rock tunnel

The present invention relates to a soft ground excavation reinforcement device in an improved TBM rock tunnel, and more particularly, to reach the soft ground in the process of excavating the rock using a tunnel boring machine equipped with a cutter head in front. In this case, the present invention relates to an improved rock tunnel soft ground excavation reinforcing device which is made to reinforce the soft ground by steel segments.

In general, the drilling method for excavating the tunnel is the conventional steel support method (ASSM), the latest method is NATM (New Austrian Tunneling Method), TBM (Tunnel Boring Machine method) or shield tunnel (Shield Tunnel) method have.

Among them, the ASSM method, which is a conventional method, is a method that supports rock that is settled by ground relaxation by using wood, steel arch support, and concrete lining as a main complement.

In addition, NATM method adopts rock mechanics concept that uses the surrounding rock itself, which constitutes the tunnel, as a support body and uses shotcrete or rock bolt as an auxiliary support body. Its wide cross-section makes it a cost effective method under general conditions.

In addition, TBM method is a mechanical excavation method that mainly excavates rock by crushing or cutting the rock tunnel from shear tunnel to shear surface tunnel excavator, and uses the surrounding rock itself as a support body to form a dynamically stable circular structure with shotcrete or rock bolt. The same support can be greatly reduced.

In addition, the shield tunnel method pushes a sturdy steel cylindrical excavator, called shield, into the ground, advances it, and excavates it while preventing the collapse of the ground of the tip. It is a construction method that excavates a tunnel while constructing (segment) and repeating the construction of the front end and the rear PC segment venting.

The tunnel method is selectively applied depending on the location of construction site, geology, ground shape, surrounding environment, construction period, and the like.

In the case of TBM that drills a tunnel through hard rock among these tunneling methods, the rock collapse of rock is significantly less than NATM during the tunnel excavation of hard rock by tunnel boring machine. It is possible to reduce the cavity, such as cost reduction, construction period is shortened.

On the other hand, even when rock tunnel excavation works, soft ground (single fracture zone) appears depending on the section, and when such a soft ground passes through, the drilling boring machine, which is an excavation device, is difficult to proceed. Ground reinforcement work is performed.

Reinforcement of the existing soft ground is performed by stopping the excavation device in operation and then reinforcing the soft ground by performing the conventional rock bolt, steel beam, shotcrete, wet-polling, grouting work to secure the safety of the soft ground. Excavator is restarted after implementation.

As the worker reinforces the soft ground in this way, it is difficult to secure the worker's safety due to the collapse of the soft ground in the upper part of the cutter head and immediately after the head jacket. Of course, there is a problem that the time delay is of course greatly reduced work efficiency.

Moreover, in the case of TBM, which is the excavation device of the rock tunnel, the structure that advances the cutter head on the front side draws the gripper, adheres to the tunnel wall, fixes the body of the excavation device, and then advances the cutter head using the hydraulic cylinder. In this case, when the gripper is in close contact with the tunnel wall surface of the soft ground to fix the excavation device, the soft ground collapses as it is and collapses as a result of the contact pressure.

In addition, during the excavation process using the TBM after the conventional reinforcement work, the grip between the gripper and the reinforcing steel beams is generated, and the previously designed steel beam spacing is 1 ~ 1.5m wide to secure safety. In order to do this, Gangjibo should be constructed closely at 2 ~ 30cm intervals. Even if the construction is so strong that the rigid beam deformed so that the rigid body beam is not firmly supported by the gripper due to the excavation due to the fall and fall of the rigid ground beam and the tunnel wall, there is a linear maintenance problem when excavation.

Looking at the prior art, there is a lining segment for the tunnel, which is registered Patent No. 10-0964205, which is assembled with each other to return to the inner wall surface of the tunnel, the skin plate for supporting the inner wall portion of the tunnel, adjacent to the skin plate Fastening means for fastening the skin plates of different lining segments to each other, a sealing member for hermetically sealing the fastening portions of the lining segments, and formed on the skin plate to fill concrete between the skin plate and the inner wall of the tunnel. In a lining segment for a tunnel including a concrete pouring hole, the fastening means is a first fastening formed at both ends of the skin plate so that both ends of adjacent skin plates can be screwed together along the circumferential direction of the tunnel. Plates and adjacent skinplates along the length of the tunnel The second fastening plates are formed on both side portions of the skin plate so as to screw both sides of each other.

This prior art makes it easy to carry segments into the tunnel and improves assembly of the segments.

However, since the conventional technique is applied to a shield tunnel method using an excavation device that is not provided with a gripper, that is, an excavation device having a collapse protection body at the periphery of the cutter head, the hydraulic cylinder is supported by the gripper. It is difficult to apply to TBM method which is advanced and does not have collapse protection body on the cutter head. In shield TBM method, the segment (steel, PC segment) is driven by the hydraulic cylinder at the segment section in the tunnel direction. There is a difference from the method, and even if applied, the problem of slipping between the gripper and the segment still cannot be solved.

The present invention is provided with a gripper and the hydraulic cylinder to advance the cutter head by using the TBM to excavate the rock tunnel to make the reinforcement work on the soft ground quickly and to ensure the safety of the operator to the head jacket rear half Its purpose is to provide a soft ground excavation reinforcement device in an improved TBM rock tunnel to prevent slipping between grippers and segments.

Soft ground excavation reinforcement device in the improved TBM rock tunnel of the present invention as a means for achieving the above object, the excavating body having a rotary cutter head for drilling and drilling the rock rock by rotation and a forward moving portion for advancing the rotary cutter head; A gripper body provided on an outer surface of the forward moving part of the excavator and in close contact with the excavated rock surface to support the excavator when the excavator moves forward; A reinforcement provided between the rotary cutter head of the excavator and the gripper body to reinforce the fault fracture section during rock drilling; A reinforcement body comprising a segment constructed in the fault fracture section by the reinforcement body, wherein the reinforcement body comprises: a reinforcement housing part having an outer surface of a forward moving part of the excavator and having a bearing part; A reinforcement rotating part connected to the reinforcement housing part and the support frame part and positioned at a circumference of the reinforcement housing part and provided with an interlocking gear along an inner circumferential surface thereof; A reinforcement rotating motor having a drive gear meshed with the interlocking gear of the reinforcement rotating unit; A first cylinder portion and a second cylinder portion connected to the reinforcement rotating portion and the reinforcement bracket; A first link part connected to one side of the first cylinder part and a second link part connected to one side of the second cylinder part; The other side of the first link portion and the other side of the second cylinder portion is connected is made of a segment having a connecting protrusion connected to the segment.

Furthermore, the segment may include: an upper surface plate through which the plurality of first fastening holes pass; A bottom plate having a plurality of second fastening holes therethrough; A seat plate having a plurality of third fastening holes therethrough; A right surface plate having a plurality of fourth fastening holes therethrough; The upper and lower plates, the lower plate and the right plate are connected to each other to be positioned at the front side and provided with fastening grooves respectively corresponding to the first fastening hole, the second fastening hole, the third fastening hole and the fourth fastening hole. A front panel; A rear plate located at a rear side by connecting the upper plate and the lower plate, the left plate and the right plate; When the segment penetrates the front plate and the back plate and is in close contact with the fault fracture section, the segment is connected to the connection protrusion of the tractor and is provided with a fastening portion to which the set anchor is fastened after contact with the fault fracture section.

Furthermore, the gripper body may include: a gripper body housing having an outer surface of the forward moving part and having a gripper cylinder; A forward and backward operation part connected to the gripper cylinder and forward and backward from the gripper body housing by an operation of the gripper cylinder; It is provided with a gripper connected to the forward and backward operation part.

Furthermore, the gripper surface is further provided with a non-slip pad portion for improving adhesion to the rock surface drilled and drilled by the cutter head or the segment constructed in the fault fracture section.

Further, the reinforcement is further provided with a probe drill and the mounting body to mount the probe drill for the advanced boring for the fault fracture section of the rock tunnel to be excavated.

Further, the probe drill mounting body, the first bracket bracket is connected to the reinforcing body rotating portion; A second bracket bracket connected to the reinforcement housing; A first holder cylinder connected to the second holder bracket; A stationary housing having a first hinge bracket hinged to the first bracket bracket and hinged to the first holder cylinder connected to the second bracket bracket and having a drill mounting portion; It is provided with a drill driving unit for rotating the probe drill mounted on the drill mounting portion.

The present invention not only facilitates rock tunnel excavation work by the TBM (Tunnel Boring Machine method), which is advanced by close support by grippers, so as to support the fault fracture section by the segment when excavating underground rock tunnels. In addition, the construction of rock tunnel excavation using TBM not only shortens the construction period due to fault fracture zones, but also reduces construction costs and prevents worker accidents.

Figure 1 is a block diagram showing a soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

Figure 2 is a partially omitted perspective view showing a soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

Figure 3 is a perspective view showing the main components of the soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

Figure 4 is a block diagram showing the main components of the soft ground excavation reinforcement device in the improved TBM rock tunnel of the present invention.

Figure 5 is a block diagram of a state in which the segment is installed by the soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

6 and 7 is a configuration diagram of the state and the operating state in which the segment is in close contact with the rock tunnel surface by the soft ground excavation reinforcement device in the improved TBM rock tunnel of the present invention.

8 to 10 is a perspective view and a block diagram showing a segment of the soft ground excavation reinforcement device in the improved TBM rock tunnel of the present invention, respectively.

Figure 11 is a block diagram of the construction of the segment by the soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

12 is a configuration diagram showing a state before the gripper body of the soft ground excavation reinforcement device in close contact with the segment in the improved TBM rock tunnel of the present invention.

Figure 13 is a block diagram showing a state in which the gripper body of the soft ground excavation reinforcement device in close contact with the segment in the improved TBM rock tunnel of the present invention.

14 is an enlarged configuration diagram showing a state before the gripper body of the soft ground excavation reinforcement device is in close contact with the segment in the improved TBM rock tunnel of the present invention.

Figure 15 is a block diagram showing another embodiment of the soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

Figure 16 is an enlarged configuration diagram showing the main components of another embodiment of the soft ground excavation reinforcement device in the inventor improved TBM rock tunnel.

Hereinafter, other objects and features of the present invention in addition to the above object will be apparent through a description of the embodiments with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, with reference to the accompanying drawings the soft ground excavation reinforcement device in the improved TBM rock tunnel according to an embodiment of the present invention will be described in more detail.

As shown in the improved TBM rock tunnel of the present invention, the soft ground excavation reinforcement device, the rotary cutter head 110 for drilling and drilling the rock by rotating the forward moving part 120 for advancing the rotary cutter head 110 It is provided on the excavator 100 and the outer surface of the forward moving part 120 of the excavator 100 is in close contact with the excavated rock surface to support the excavator 100 when the excavator 100 moves forward A reinforcement member 300 provided between the gripper body 200 and the rotary cutter head 110 and the gripper body 200 of the excavator body 100 to reinforce the fault fracture section during rock drilling drilling; It comprises a segment 400 which is constructed in the fault fracture section by the sieve 300.

In the present invention made as described above, rock tunnel excavation is performed by the rotation of the rotary cutter head 110 while the excavator 100 is advanced by the forward moving part 120.

The gripper body 200 is in close contact with the rock tunnel surface when the excavator 100 moves forward by a predetermined distance by the forward moving part 120 to excavate the rock tunnel by the rotary cutter head 110. Supporting the forward movement of the sieve 100, if the excavating body 100 is moved by the set distance is moved away from the rock tunnel surface by the set distance along the forward moving part 120 toward the excavator 100. .

Rock tunnel excavation work is performed while the above operation is repeatedly performed, and during rock excavation work except for the fault fracture section, the gripper body 200 is closely adhered to the rock tunnel surface by a solid rock and then the rock tunnel surface is While pushing strongly to support the forward movement of the excavator 100, the gripper body 200 is a soft ground that is firmly made to cope with the force to push the rock tunnel surface, while the fault and the fault meet In the case of the fault fracture section, when the gripper body 200 pushes the rock tunnel surface of the fault fracture section, the rock tunnel surface collapses or does not firmly support the gripper body 200.

Accordingly, in the present invention, the reinforcement work for the fault fracture section of the rock tunnel may be performed by the reinforcement 300 to prevent collapse of the fault tunnel fracture section and the safety accident of the worker.

The reinforcement body 300 of the present invention includes a reinforcement housing part 310 and a reinforcement housing part 310 having an outer surface of the forward moving part 120 of the excavator 100 and having a bearing part 311. Reinforcement rotating part 320 and the reinforcing body rotating part 320 is connected to the support frame part 321 is located in the circumference of the reinforcement housing 310 and provided with an interlocking gear 322 along the inner circumferential surface; Reinforcement rotating motor 330 having a drive gear 331 meshed with the interlocking gear 322 of the) and the first cylinder portion connected to the reinforcement rotating part 320 and the reinforcement bracket (341, 351) 340 and the second cylinder unit 350, the first link unit 360 is connected to one side of the first cylinder unit 340 and the second link is connected to one side and the second cylinder unit 350 Segment ejector 380 having a portion 370, the other side of the first link portion 360 and the other side of the second cylinder portion 350 is connected to the segment 400 is connected to the segment 400 Equipped with Uh it has done.

The first link unit 360 and the second link unit 370 are respectively operated by the first cylinder unit 340 and the second cylinder unit 350 to which one side is connected to the first link unit 360. The other segment of the second link portion 370 is connected to each of the segments 380 pulls the reinforcement housing 310 of the reinforcement body 300 or pushes it from the reinforcement housing 310.

By this operation, since the segment 400 connected to the segment 380 can be brought into close contact with the rock tunnel surface of the fault fracture zone, the worker constructs the heavy segment radially with respect to the circular rock tunnel surface. It is easy.

That is, when the segment 400 is connected to the segment collector 380 during the reinforcement of the rock tunnel surface of the fault fracture zone, the first cylinder part 340 and the second cylinder part 350 are operated to operate the segment 400. When the first link unit 360 and the second link unit 370 are pushed out, the first link unit 360 hinged to one side of the first cylinder unit 340, the second cylinder unit 350, and The second link portion 370 is pushed out of the reinforcement housing 310 and the segment is connected to the rock tunnel surface of the fault fracture section of the fault fracture section 380 so that the segment 400 connected to the segment 380 is opened. Close contact with the rock tunnel surface.

In this manner, the plurality of segments 400 may be radially installed on the rock tunnel surface of the fault fracture zone, and the plurality of segments 400 may be firmly fixed to each other by bolts and nuts, respectively.

The first cylinder portion 340, the second cylinder portion 350, the first link portion 360, the second link portion 370, and the segment eruptor 380 include the reinforcement rotating part 320 and the reinforcement body. Since the

brackets

341 and 351 are connected to each other, the first cylinder part 340, the second cylinder part 350, and the first link part 360 may be connected to the reinforcement body rotating part 320. Since the second link unit 370 and the segment etractor 380 may be rotated, the plurality of segments 400 may be radially disposed on a circular rock tunnel surface.

The rotation of the reinforcement rotating part 320 is performed by the power of the reinforcing body rotating motor 330 having a drive gear 331 engaged with the interlocking gear 322 provided in the reinforcing body rotating part 320. When the reinforcement rotating motor 330 is driven, the drive gear 331 is rotated, and thus the interlocking gear 322 engaged with the drive gear 331 is rotated, so that the interlocking gear 322 has an inner circumferential surface. The reinforcement rotating part 320 is provided along the rotation.

Since the segment 400 is made of a steel material, mobility and installation as well as workability are greatly improved compared to a segment made of a conventional concrete material.

The segment 400 of the present invention includes a top plate 410 through which the plurality of first fastening holes 411 pass through, a bottom plate 420 through which the plurality of second fastening holes 421 pass through, and a plurality of A seat plate 430 through which three third fastening holes 431 pass through, a right plate 440 through which a plurality of fourth fastening holes 441 pass through, a top plate 410 and a bottom plate 420, The seating plate 430 and the right side plate 440 are connected to each other and positioned at the front side. The first fastening hole 411, the second fastening hole 421, the third fastening hole 431, and the fourth fastening hole 441. And a fastening groove 451 corresponding to the front plate 450 and the front plate 450 which is in close contact with the gripper body 200 when the excavator 100 moves forward by the forward moving part 120. The upper plate 410 and the lower plate 420, the left plate 430 and the right plate 440 is connected to the rear plate 460 located on the rear side, and the front plate 450 and the back plate 460 The segment rack when penetrating through and adhering to the fault fracture zone Connection protrusion 381 of the unit 380 is connected and is made is provided in a fastening portion 470 that is entered into the set anchor (A) after being in close contact with the fault fractured intervals.

In this case, a separate reinforcing rib may be further provided inside the front plate 450 and the back plate 460 to further improve durability and robustness of the segment 400 of the present invention.

The reason why the back plate 460 is provided in the segment 400 of the present invention is to improve the adhesion to the rock tunnel surface of the fault fracture zone by the back plate 460 and the blocking area of the rock tunnel surface.

In addition, the reason why the front plate 450 is provided is that, in the improved TBM rock tunnel of the present invention, since the soft ground excavation reinforcement device is made of TBM (Tunnel Boring Machine) moving forward by the support force of the gripper body 200, the gripper This is to allow the sieve 200 to be in close contact with the front plate 450.

When the plurality of first fastening holes 411, the second fastening holes 421, the third fastening holes 431, and the fourth fastening holes 441 are connected by radially connecting the plurality of segments 400, This is to fix the plurality of segments 400 using bolts and nuts through respective fastening holes corresponding to each other.

The reason why the plurality of fastening grooves 451 corresponding to the plurality of first fastening holes 411, the second fastening holes 421, the third fastening holes 431, and the fourth fastening holes 441 is provided is also provided. The first fastening holes 411, the second fastening holes 421, the third fastening holes 431, and the fourth fastening holes 441 are respectively an upper surface plate 410, a lower surface plate 420, and a seating surface. As the plate 430 and the right side plate 440 are positioned on the side of the front plate 450 and the rear plate 460, the worker is connected to the plurality of segments 400 to closely contact each other. This is to facilitate the operation of fixing the plurality of segments 400 through the fastening holes corresponding to each other by introducing the nut through the fastening groove 451.

The fastening part 470 is provided to penetrate the front plate 450 and the back plate 460. Thus, the fastening part 470 is provided to penetrate the front plate 450 and the back plate 460. One reason is that a short patch operation (mortar spray operation) or a quick mortar cement for the fault fracture section blocked by the segment 400 is injected into the rock tunnel surface side of the fault fracture section, thereby ensuring the stability of the fault fracture section early. To do that.

In addition, as a set anchor (A) is fastened to the fastening part 470 in the process of connecting the plurality of segments 400 to each other using bolts and nuts, the binding between the rock tunnel surface and the segment 400 and the solid fastness. It can be improved to prevent the collapse of the segment 400 which is radially installed along the circular rock tunnel surface in advance.

As such, the reinforcement work for the fault fracture section using the reinforcement 300 and the segment 400 is quickly performed by assembling the segment 400, thereby shortening the construction period and obtaining a cost reduction effect. Safety accidents can be prevented beforehand.

The gripper body 200 of the present invention is connected to the gripper cylinder 210 and the gripper cylinder 211 having an outer surface of the forward moving part 120 and having a gripper cylinder 211, and the gripper cylinder 211. By the operation of 211 is provided with a forward and backward operation unit 220 that is forward and backward from the gripper body housing 210, and the gripper 230 is connected to the forward and backward operation unit 220.

In the gripper body 200 according to the present invention, the forward and backward operation part 220 is moved forward and backward by the operation of the gripper cylinder 211, that is, the withdrawal and withdrawal operation of the gripper cylinder 211. The gripper 230 connected to the working part 220 is advanced toward the rock tunnel surface side to be in close contact or backward from the rock tunnel surface to release the adhesion.

The gripper 230 surface is further provided with a non-slip pad portion 240 for improving the adhesion of the segment 400 to the rock surface or drilled excavated by the cutter head 110 and the fault fracture section. As the non-slip pad part 240 is further provided as described above, the adhesion force with the segment 400 and the frictional force with respect to the contact surface are improved, as well as the adhesion force with the rock tunnel surface on which the segment 400 is not installed and the frictional force with respect to the contact surface. Since it can be greatly improved, the excavator 100 can be firmly supported during the forward movement of the excavator 100.

The reinforcement 300 is further provided with a probe drill mounting body 500 that can be mounted on the probe drill (D) for the advanced boring for the fault fracture section of the rock tunnel to be excavated.

The probe drill mounting body 500 includes a first bracket bracket 510 connected to the reinforcement rotating part 320 of the reinforcement body 300 and a second mounting bracket connected to the reinforcement housing part 310. 520, a first mounting cylinder 530 connected to the second mounting bracket 520, and a first hinge bracket 540 hingedly connected to the first mounting bracket 510. The first housing body cylinder 530 is connected to the second bracket bracket 520 and hinged to the holder housing 550 having a drill mounting portion 551, and a probe drill mounted on the drill mounting portion 551 ( It is provided with a drill driving unit 560 for rotating the D).

As the probe drill mounting body 500 is connected by the reinforcing body rotating part 320 and the first bracket bracket 510, the probe drill mounting body 500 is rotated according to the rotation operation of the reinforcing body rotating part 320. Because it can be rotated, multidirectional near-field geological exploration is possible for tomographically excavated fault fracture zones.

As such, the probe drill mounting body 500 is provided with a medium / large scale collapse in the front upper part during the excavation of the rock tunnel, so that the upper poling and the pre-grouting reinforcement work at a predetermined interval on the upper part. If necessary, the probe drill D mounted on the probe drill mounting body 500 may be mounted on the probe drill mounting body 500, and then drilled to reinforce the work.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims, as well as the following claims, will fall within the scope of the present invention.

Claims

An excavator 100 having a rotary cutter head 110 for drilling and drilling the rock by rotation and a forward moving part 120 for advancing the rotary cutter head 110;

A gripper body 200 provided on an outer surface of the forward moving part 120 of the excavator 100 and being in close contact with the excavated rock surface to support the excavator 100 when the excavator 100 moves forward;

A reinforcement member 300 provided between the rotary cutter head 110 and the gripper body 200 of the excavator 100 to reinforce the fault fracture section during rock drilling;

Segment 400 is constructed by the reinforcing body 300 in the fault fracture section,

The reinforcement body 300,

A reinforcement housing part 310 having an outer surface of the forward moving part 120 of the excavator 100 and having a bearing part 311;

A reinforcement rotating part 320 connected to the reinforcement housing part 310 and the support frame part 321 and positioned at a circumference of the reinforcement housing part 310 and provided with an interlocking gear 322 along an inner circumferential surface thereof; ;

A reinforcement rotating motor 330 having a drive gear 331 engaged with the interlocking gear 322 of the reinforcement rotating unit 320;

A first cylinder part 340 and a second cylinder part 350 connected to the reinforcement rotating part 320 and the reinforcement brackets 341 and 351;

A first link part 360 connected to one side of the first cylinder part 340 and a second link part 370 connected to one side of the second cylinder part 350;

The other side of the first link portion 360 and the other side of the second cylinder portion 350 is connected to the segment 400 having a connecting protrusion 381 is connected to the segment 400 is made of,

The segment 400,

An upper surface plate 410 through which the plurality of first fastening holes 411 pass;

A lower plate 420 through which the plurality of second fastening holes 421 are formed;

A seat plate 430 through which the plurality of third fastening holes 431 pass through;

A right surface plate 440 through which the plurality of fourth fastening holes 441 are formed;

The first and second fastening holes 411 and 421 are positioned at the front side by connecting the top plate 410 and the bottom plate 420, the seat plate 430, and the right plate 440. A fastening groove 451 corresponding to each of the three fastening holes 431 and the fourth fastening holes 441 is provided, respectively, and the gripper body (A) is moved when the excavator 100 moves forward by the forward moving part 120. 200 and the front plate 450 is in close contact;

A rear plate 460 located at the rear side by connecting the upper plate 410 and the lower plate 420, the left plate 430, and the right plate 440;

When the segment penetrates through the front plate 450 and the back plate 460 and is in close contact with the fault fracture section, the connecting protrusions 381 of the segment 380 are connected and closely contacted with the fault fracture section. Soft ground excavation reinforcement device in the improved TBM rock tunnel, characterized in that provided with a fastening portion 470 to be fastened.
The method of claim 1,

The gripper body 200,

A gripper body housing 210 having an outer surface of the moving member 120 and having a gripper cylinder 211;

A forward and backward operation part 220 connected to the gripper cylinder 211 and forward and backward from the gripper body housing 210 by an operation of the gripper cylinder 211;

Soft ground excavation reinforcement device in the improved TBM rock tunnel, characterized in that the gripper 230 is connected to the forward and backward operation unit 220.
The method of claim 2,

On the surface of the gripper 230

Improved TBM rock, characterized in that the non-slip pad portion 240 is further provided to improve the adhesion of the rock surface or the segment constructed in the fault fractured section drilled by the cutter head (110) Soft ground excavation reinforcement device in tunnel.
The method of claim 1,

The reinforcement body 300

Soft ground excavation in an improved TBM rock tunnel, characterized by further comprising a probe drill mounting body 500 for mounting the probe drill (D) for the forward advanced boring for the fault fracture section of the rock tunnel to be excavated Reinforcement.
The method of claim 4, wherein

The probe drill mounting body 500,

A first bracket bracket 510 connected to the reinforcing body rotating part 320 of the reinforcing body 300;

A second bracket bracket 520 connected to the reinforcement housing 310;

A first mounting body cylinder 530 connected to the second mounting bracket 520;

A first hinge bracket 540 hinged to the first bracket bracket 510 is provided and is hinged to the first holder cylinder 530 connected to the second bracket bracket 520 and drill drill unit 551 is provided. And a stationary housing 550 having a);

Soft ground excavation reinforcement device in the improved TBM rock tunnel, characterized in that it is provided with a drill driving unit 560 for rotating the probe drill (D) mounted on the drill mounting portion (551).