KR20180009546A - Sehment for tunnel - Google Patents

Abstract

The present invention relates to a coupling device capable of being precisely assembled and disassembled, a segment for a tunnel using the same, and a disassembly method thereof. According to one embodiment of the present invention, the segment for a tunnel comprises vertical and horizontal coupling devices installed on vertical and horizontal coupling surfaces, respectively. The vertical coupling device includes: a male member including a first male member having a first tool insertion hole and a first female screw part formed on an inner circumferential surface to communicate with each other, and a second male member having first and second male screw parts and having a tool coupling part formed in one end part and formed because the first female screw part and the first male screw part are screw-coupled; and a female member including a fixing member which includes an insertion port and an inner space and a coupling member disposed in the inner space and having a second female screw part formed on an inner circumferential surface. The male and female members are coupled by engagement between the second male screw part and the second female screw part, and are separated by rotation of the tool coupling part. The horizontal coupling device includes: a male socket including a head part; and a female socket into which the head part is inserted and slid to be coupled. Simultaneous vertical and horizontal coupling and disassembly are able to be realized by the vertical and horizontal coupling devices.

Description

Segment for Tunnel {SEHMENT FOR TUNNEL}

The present invention relates to a segment for a tunnel, and more particularly, it is possible to complete the joining in the longitudinal direction and the transverse direction only by the adjacent arrangement of the tunnel segment, and the structure is simple and the manufacturing cost is low. The present invention relates to a segment for a tunnel which can be easily disassembled.

Generally, the segment is assembled in the factory after it is assembled in the field. It has many advantages such as reducing noise and complaints generated in the field, shortening the working time and shortening the construction period.

In addition, the segment can be constructed by a shielding method in a tunnel excavation method, that is, a method in which a cylindrical shield is inserted into a straight hole to excavate a tunnel by rotating a cutter head, and a tunnel is constructed by repeatedly installing precast segments at the rear of the shield And the like.

Various techniques have been developed for joining such precast segments. However, each technique has problems in that the work space is narrow, eccentric loads occur in the precast segment, the rigidity of the segment itself is lowered, There were various problems such as high problem.

In addition, when the tunnel is constructed by using the precast segment, there is a problem in terms of temporal uneconomy because a separate operation is required to join the pregost in the longitudinal direction and the transverse direction.

In addition, in the case of a joining apparatus in which joining is performed between segments by merely disposing one precast segment on the other side to the other precast segment, the joined segment is re-disassembled due to an incorrect joining or a broken joining segment There is a problem that it is very difficult to disassemble it.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a tunnel structure in which longitudinal and transverse joining can be completed only by arranging adjacent segments for a tunnel, And to provide a segment for a tunnel which can be easily disassembled.

In order to solve the above-mentioned problems, a tunnel segment according to an embodiment of the present invention includes a longitudinal coupling device and a transverse coupling device provided on each of a longitudinally coupled surface and a transversely coupled surface, And a second male member having a first male member, a first male screw, and a second female screw, each of which has a first tool insertion opening and a first female screw portion communicating with each other on an inner circumferential surface thereof, A male member formed by screwing the first female screw portion and the first male screw portion; And an arm member including a fixing member including an insertion port and an inner space and a coupling member disposed in the inner space and having a second female threaded portion formed on an inner circumferential surface thereof, Wherein the second engagement portion is engaged by the engagement of the male threaded portion and the second female threaded portion, and is detachable by rotation of the tool engagement portion, the lateral engagement device comprising: a male socket including a head; And an arm socket in which the head part is inserted and slidably coupled, wherein the longitudinal direction coupling device and the lateral direction coupling device are capable of simultaneous joining and disassembling in the longitudinal direction and the lateral direction.

The fixing member may include an inclined portion formed inside the insertion port, and one end of the engaging member may come into close contact with the inclined portion.

A second tool insertion port is formed in the arm member, and a first tool passage communicating the first tool insertion port and the second tool insertion port of the first water member may be formed in the tunnel segment.

The segment for the tunnel may be formed with a second tool passage communicating with the first tool insertion port of the first water member.

The female socket of the transverse coupling device may include a guide portion for guiding insertion of the socket head.

The female socket includes a guide portion for guiding the sliding of the male head portion, and the sliding of the head portion is guided by the guide portion so that the male and female connectors can be engaged with each other.

The guide portion may be formed inside the upper fixing portion of the female socket.

The distance that the male socket head is inserted and slid into the female socket may be longer than the length of the second male member protruding from the tunnel segment.

According to the segment for a tunnel according to an embodiment of the present invention, longitudinal and transverse joining can be completed only by positioning adjacent segments for a tunnel, and the structure is simple and manufacturing cost is low. It is possible to provide a segment for a tunnel which can be disassembled.

In addition, according to the segment for a tunnel according to an embodiment of the present invention, it is possible to provide a segment for a tunnel which can be engaged without being biased to one side and can be maintained in that state, and prevented from slipping after coupling.

1 is a schematic view showing a tunnel according to an embodiment of the present invention.
Figure 2 is an exploded view of the tunnel of Figure 1;
3 is an exploded perspective view of a longitudinal coupling device according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3, showing a first water member according to an embodiment of the present invention. FIG.
FIG. 5 is a cross-sectional view taken along the line CC of FIG. 3, showing a fixing member according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along the line CC of FIG. 3, showing a fixing member according to another embodiment of the present invention.
FIG. 7 is a view corresponding to FIG. 6, showing a fixing member according to an embodiment of the present invention. FIG.
FIG. 8 is a view corresponding to FIG. 6, showing a fixing member according to another embodiment of the present invention. FIG.
9 is a view showing a coupling member according to an embodiment of the present invention.
10 is a view showing a coupling member according to another embodiment of the present invention.
FIG. 11 is a cross-sectional view showing a state in which the first water member and the second water member are engaged with each other and the second water member and the arm member are separated in taking line AA of FIG. 2, Fig. 6 is a view showing a joint surface of a segment for a tunnel to which a coupling device and a transverse coupling device are embedded.
FIG. 12 is a view showing a state where the male member and the female member of FIG. 11 are combined.
FIG. 13 is a cross-sectional view of the fixing member and the engaging member according to another embodiment of the present invention, which corresponds to FIG. 12. FIG.
14 to 16 are views for explaining slip prevention of the longitudinal coupling device according to the present invention.
17 to 19 are views showing a method of disassembling a segment for a tunnel according to an embodiment of the present invention.
20 to 22 are views showing a method of disassembling a segment for a tunnel according to another embodiment of the present invention.
23 is a view showing a male socket of a transverse coupling apparatus according to an embodiment of the present invention.
24 is a plan view of the female socket of the lateral coupling device according to one embodiment of the present invention.
25 is a cross-sectional view taken along the line DD of Fig.
26 is a cross-sectional view taken along the line EE in Fig.
27 is a cross-sectional view taken along line FF of Fig.
28 is a plan view of an arm socket of a lateral coupling device according to another embodiment of the present invention.
29 is a cross-sectional view taken along the line GG in Fig.
30 is a cross-sectional view taken along line HH in Fig.
31 is a cross-sectional view taken along the line II of Fig.
32 and 33 are views for explaining joining of segments for a tunnel by a longitudinal coupling device and a lateral coupling device according to an embodiment of the present invention.
34 is a view for explaining the joining of the segments for the tunnels by the longitudinal coupling device and the lateral coupling device according to another embodiment of the present invention.

In order to facilitate understanding of the features of the present invention as described above, a tunnel segment according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, exemplary embodiments will be described on the basis of embodiments best suited for understanding the technical characteristics of the present invention, and the technical features of the present invention are not limited by the illustrated embodiments, And that the present invention may be implemented with other embodiments. Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. In order to facilitate the understanding of the embodiments described below, in the reference numerals shown in the accompanying drawings, among the constituent elements that perform the same function in the respective embodiments, the related constituent elements are indicated by the same or an extension line number.

FIG. 1 is a schematic view showing a tunnel according to an embodiment of the present invention, and FIG. 2 is an exploded view of the tunnel of FIG.

A plurality of segments 10 for a tunnel according to the present invention are installed so that the junction surfaces 11 are disposed adjacent to each other in the transverse direction (circumferential direction) and the longitudinal direction (axial direction) of the tunnel 1 to form a wall of the tunnel 1.

In connection with the tunnel excavation method for tunnel construction, a shielding method is employed, that is, a cylindrical shield is inserted into a straight hole, the cutter head is rotated to excavate the tunnel, and a segment is repeatedly installed at the rear of the shield But the present invention is not limited thereto.

The tunnel segment 10 according to the present invention is installed in the lengthwise direction of the tunnel 1 in the direction of advancement (in the direction of the arrow A) after completion of construction of the tunnel 1 in the horizontal direction (circumferential direction).

(Circumferential direction) upper joining surface 13 of the tunnel segment 10 is formed at the time of constructing the tunnel 1 in the lateral direction (circumferential direction) The joining surfaces 12 of the tunnel segments 10 are joined in the longitudinal direction.

When the tunnel 1 is constructed in the transverse direction (circumferential direction), the tunnel segments 10 are arranged in the order from the lower side to the upper side of the tunnel 1, The arrangement of the key segments 10 'can be made.

Referring to the vertical direction of FIG. 2, the segment 10 for a tunnel according to an embodiment of the present invention has at least two longitudinal joints 800 in the upper and lower sides (the longitudinal direction of the tunnel) . The longitudinal coupling device 100 according to the present invention is embedded and fixed to the longitudinal coupling part 800 and the joint surface 11 of the tunneling segment 10 is joined by the longitudinal coupling device 100 .

In order to improve the durability of the tunnel 1, three longitudinal joints 800 may be formed on the upper and lower sides (longitudinal direction of the tunnel), as shown in FIG.

The upper and lower tunnel segments 10 are arranged in a staggered manner and the central portion of the upper tunnel segment 10a is located on the right side of the lower tunnel segment 10b And the central portion of the lower tunnel segment 10b is in contact with the lower portion of the lower tunnel segment 10c.

As described above, three longitudinal joint portions 800 are formed in the upper and lower sides (longitudinal direction of the tunnel), and when the tunnel segments 10 are arranged in a zigzag arrangement, the upper tunnel segment 10a The lower tunnel segment 10b is bonded to the lower left tunnel segment 10b by the two longitudinal joints 800 and the lower tunnel segment 10b is joined by the two right tunnel segment 10c and the two junctions, .

In the case of joining as described above, the upper tunnel segment 10a is connected to the lower right tunnel segment, and the lower tunnel segment 10b is connected to the lower left tunnel segment by one junction, .

Referring to the vertical direction of FIG. 2, the segments 10 for a tunnel according to an embodiment of the present invention may have at least one lateral joint 810 at the left and right sides (lateral direction of the tunnel) have. The transverse coupling unit according to the present invention is fixedly embedded in the transverse coupling unit 810, and the joint surface of the tunnel segment 10 can be joined by the transverse coupling unit.

3 is an exploded perspective view of a coupling device capable of precision assembly and disassembly according to an embodiment of the present invention.

3, a longitudinal coupling device 100 according to an embodiment of the present invention includes a male member 200 and a female member 300, and the male member 200 includes a first male member 210 And a second male member (230).

The first water member 210 has a shape similar to a tube as a whole. The first tool insertion hole 212 is formed at one side of the inner circumferential surface, and the first internally threaded portion (not shown) is formed at the other side.

The first male threaded portion 232 of the second male member 230 is screwed into the first female threaded portion (not shown).

A first male screw portion 232 is formed on one side of the second male member 230 and a thread is formed on the outer circumferential surface of the first male screw portion 232. A tool engaging portion 236 is formed at the end of the first male screw portion 232 and the tool engaging portion 236 rotates the second male member 230 to thereby rotate the longitudinal coupling device 100 ), Which will be described later.

A second male threaded portion 234 is formed on the other side of the second male member 230 and a threaded thread is formed on the outer circumferential surface of the second male threaded portion 234. The second male screw portion 234 is engaged with a second female screw portion (not shown) inside the female member 300 to be described later so that the second male member 230 and the female member 300 can be engaged have.

The first guide portion 238 may be formed at a distal end of the second male screw portion 234 of the second male member 230. The third guide part 350 is formed to taper in a direction toward the insertion port 311 of the arm member 300 and the second guide part 238 allows the second water part 230 to be inserted into the insertion hole 311). That is, the arm member 300 and the second water member 230 can be more smoothly coupled by the first guide portion 238.

A boundary guide part 240 may be formed between the first male screw part 232 and the second male screw part 234. When the first guide member 210 and the second guide member 230 are engaged with the first female threaded portion (not shown) of the second guide member 230, Which portion is to be inserted into the first female screw portion (not shown). It is preferable that the boundary guide part 240 is located at an intermediate position in the longitudinal direction of the second water member 230.

The arm member 300 includes a fixing member 310 and a coupling member (not shown), and may further include an elastic member (not shown).

The fixing member 310 forms the outer surface of the arm member 300 and the engaging member and the elastic member may be disposed inside the fixing member 310. The engaging member (not shown) and the elastic member (not shown) will be described later. The fixing member 310 includes an insertion port 311 through which the second water member 230 is inserted and the insertion port 311 communicates with a coupling member disposition unit (not shown) to be described later.

The first male member 210 and the female member 300 may further include reinforcing rods 216 and 315, respectively.

Referring to FIG. 3, the reinforcing bars 216 and 315 may protrude in a direction perpendicular to the longitudinal direction of the first water member 210 and the arm member 300. When the reinforcing root portions 216 and 315 are protruded in the vertical direction, one side of the reinforcing root portions 216 and 315 may have a circular shape as shown in FIG.

When the first male member 210 and the arm member 300 are fixedly embedded in the joint portion (800 in FIG. 2) of the tunnel segment 10 and tensile force acts on the tunnel segment 10, The first water member 210 or the arm member 300 can be more firmly embedded and fixed to the tunnel segment 10 by the reinforcing root portions 216 and 315. [

3, the reinforcing rods 216 and 315 may protrude in a direction parallel to the longitudinal direction. The horizontal reinforcement rods 216 and 315 may extend in the same direction as the longitudinal direction of the first water member 210 and the arm member 300, respectively.

In addition to the protrusion in the vertical or horizontal direction, the reinforcement rods 216 and 315 are formed so that the first water member 210 or the arm member 300 is embedded more firmly in the tunnel segment 10 It can have various shapes that can be fixed.

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3, showing a first water member according to an embodiment of the present invention.

As described above, the first tool insertion port 212 is formed on the inner circumferential surface of one side of the first water member 210, the first internal thread portion 214 is formed on the other side circumferential surface, The first male thread portion 232 of the second male member 230 is screwed.

The inner diameter of the first female threaded portion 214 may be different from the inner diameter of the first female threaded portion 214 because the threaded portion is formed in the first female threaded portion 214, Lt; RTI ID = 0.0 > 214 < / RTI > This is because when the longitudinal coupling device 100 according to the present invention is separated, the second water member 230 screwed to the first water member 210 is inserted into the first tool insertion hole 212 So that the second male member 230 can be more smoothly retreated toward the first tool insertion port 212 side.

On the other hand, a thread may be formed in the first tool insertion port 212 as in the case of the first female thread 214, but no thread is formed for smooth retraction of the second water member 230 Lt; / RTI >

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3, showing a fixing member according to an embodiment of the present invention.

A coupling member (not shown) and an elastic member (not shown) are disposed inside the fixing member 310, but illustration thereof is omitted.

The fixing member 310 includes an insertion port 311 into which the second male screw portion 234 of the second water member 230 is inserted and an engagement member disposition portion 312 communicated with the insertion port 311. An engaging member (not shown) to be described later is disposed in the engaging member arranging portion 312.

The fixing member 310 includes an inclined portion 313 that tapers from the predetermined position on the inner circumferential surface forming the engaging member disposition portion 312 to the insertion port 311. That is, the inclined portion 313 may be formed so that the inner diameter of the fixing member 310 gradually becomes longer from the insertion port 311. The inclined portion 313 is in line contact with one end of an engaging member (not shown) disposed on the engaging member arranging portion 312, which will be described later.

A second guide portion 314 may be formed at the distal end of the insertion port 311. The second guide portion 314 is formed to taper in the direction of the engaging member disposition portion 312 and the second guide portion 314 is formed to taper in the direction of the engaging member disposition portion 312, 234 can be inserted into the insertion port 211 more smoothly. That is, the second guide member 314 can smoothly engage the second male member 230 and the female member 300.

A second protrusion 318 may be formed at a predetermined position on the inner surface of the fixing member 310 by means of a centering arrangement of the engaging member 330 in the inner space 312 of the fixing member 310 . The predetermined position may be a position adjacent to the other end of the engaging member 330 when the engaging member 330 is disposed inside the fixing member 310. The engaging member 330 can be disposed in the center of the fixing member 310 without being deviated to one side by the second protrusion 318. [ The centering will be described in detail later.

Meanwhile, the fixing member 310 may further include an elastic member fixing groove 316, which will be described later.

In addition, the fixing member 310 may include a second tool insertion port 320, which will be described later.

FIG. 6 is a cross-sectional view taken along the line C-C of FIG. 3, showing a fixing member according to another embodiment of the present invention.

Referring to FIG. 6, the fixing member 310 according to another embodiment of the present invention may not include the second protrusion (see 318 in FIG. 5). In the case of not including the second protrusion, the engaging member 330 according to an embodiment of the present invention may include a first protrusion (see 338 in FIG. 10), which will be described later.

Figs. 7 and 8 are views corresponding to Fig. 6, each showing a fixing member according to an embodiment of the present invention and another embodiment. Fig.

As described above, the engaging member (not shown) and the elastic member (not shown) are disposed inside the fixing member 310. The engaging member (not shown) and the elastic member (not shown) Openings 317a and 317b may be required to insert the coupling member (not shown) and the resilient member (not shown) into the fastening member 310 for placement within the member 310.

For this reason, the fixing member 310 may be composed of the main bodies 310a and 310c and the coupling bodies 310b and 310d.

Referring to FIG. 7, the fixing member 310 may include a first body 310a and a rear body 310b.

A thread may be formed on the inner circumferential surface of the first main body 310a constituting the first opening 317a so that the first main body 310a and the rear end coupling body 310b can be screwed together, A screw thread corresponding to the screw thread may be formed on the outer circumferential surface of the rear end assembly 310b which blocks the screw thread 317a.

In this case, after the coupling member (not shown) and the elastic member (not shown) are inserted into the first main body 310a, the first main body 310a and the rear coupling body 310b are screwed together, A coupling member (not shown) and the elastic member (not shown) may be disposed inside the fixing member 310.

In the meantime, the vertical or horizontal reinforcement rods 315 may be formed on the rear end joint 310b. 7, the first main body 310a and the rear-end coupling body 310b can be screwed to each other by grasping the reinforcing root portion 315, can do.

In addition, the elastic member fixing groove 316 may be formed in the rear end assembly 310b.

8, the fixing member 310 may include a second body 310c and a front end coupling body 310d. The front end coupling body 310d may include the insertion portion 311 and the inclined portion 313 As shown in FIG.

Even in the case where the fixing member 310 is composed of the second body 310c and the front end coupling body 310d, the second body 310c and the front end coupling body 310d are screwed together, A screw thread may be formed on the inner circumferential surface of the second body 310c constituting the first opening 317b and a thread line corresponding to the screw thread may be formed on the outer circumferential surface of the front end coupling body 310d blocking the second opening 317b .

Further, after the coupling member (not shown) and the elastic member (not shown) are inserted into the second main body 310c, the second main body 310c and the leading end coupling body 310d are screwed The coupling member (not shown), and the elastic member (not shown) may be disposed inside the fixing member 310.

9 is a view showing a coupling member according to an embodiment of the present invention.

The coupling member 330 may have a shape similar to a tube and may be composed of at least two or more, preferably three, binding powders 331 cut along the longitudinal direction.

The engaging member 330 may be formed with an elastic ring mounting groove 334 along the outer circumferential surface thereof. An elastic ring 335 may be mounted on the elastic ring mounting groove 334 and the elastic powder 335 may be fixed to the elastic ring 335 by the elastic ring 335.

The coupling member 330 has a second internal thread 332 formed on an inner circumferential surface thereof, and the second internal thread 332 is threaded.

A third guide portion 333 may be formed at the distal end of the coupling member 330. The third guide portion 333 may be formed to taper toward the center of the coupling member 330. The second male threaded portion 234 of the second male member 230 can be more smoothly inserted into the engaging member 330 by the third guide portion 333. That is, the third guide portion 333 can more smoothly engage the second water member 230 and the arm member 300.

The outer circumferential surface side end of the engaging member 330 may form a tapered end surface 336, which will be described later.

10 is a view showing a coupling member according to another embodiment of the present invention.

10, at the other end of the coupling member 330 according to an embodiment of the present invention, the center of the coupling member 330 in the inner space 312 of the fixing member 310, (338) may be formed. The engaging member 330 can be disposed in the center of the fixing member 310 without being deviated to one side by the first protrusion 338. [ The centering will be described in detail later.

FIG. 11 is a cross-sectional view showing a state in which the first water member and the second water member are coupled with each other and the second water member and the arm member are separated in taking line AA of FIG. 2, Fig. 6 is a view showing a joint surface of a segment for a tunnel to which a coupling device and a transverse coupling device are embedded.

Referring to FIG. 11, the first water member 210 according to the present invention is fixedly embedded in one longitudinal side joining surface 11a of the segment 10 for a tunnel.

The first male member 210 can be embedded and fixed in the tunnel segment 10 such that the first female threaded portion 214 is exposed to one longitudinal side joining surface 11a side of the tunnel segment 10, The second female member 230 may be screwed to the first female screw portion 214. [

The second male screw portion 234 of the second male member 230 is inserted into the engaging member 330 through the insertion port 311 of the fixing member 310 so that the female member 300 And the second water member 230 are coupled to each other, and the tunnel segment 10 can be joined. The first and second guide members 238 and 238 are provided on the second male member 230, the fixing member 310 and the engaging member 330 for smooth engagement between the second male member 230 and the female member 300, A second guide portion 314, and a third guide portion 333 may be formed.

As described above, the first water member 210 may further include a reinforcing root portion 216, and the first water member 210 may be connected to the tunnel segment 10).

Since the second male threaded portion 234 of the second male member 230 protrudes toward the one longitudinal joint surface 11a of the tunnel segment 10, (Circumferential direction) of the tunnel 1 in the lengthwise direction of the tunnel 1. [0064]

This is because the tunnel segment 10 is constructed in the longitudinal direction of the tunnel 1 after completion of construction of the tunnel 1 in the lateral direction (circumferential direction) Between the segments 10 for the tunnels in which the tunnel segments 10 already installed last in the lateral direction (circumferential direction) are already installed, It may be difficult to arrange them in the housing.

Referring to FIG. 11, the arm member 300 according to the present invention is fixedly embedded in the other longitudinal joint surface 11b of the segment 10 for a tunnel.

As described above, the arm member 300 includes the fixing member 310 and the engaging member 330, and may further include the elastic member 350.

The fixing member 310 directly contacts the tunnel segment 10 on the outer surface of the arm member 300 so that the arm member 300 is fixedly embedded in the tunnel segment 10 .

The engaging member 330 is disposed inside the fixing member 310, particularly, in the engaging member arranging portion (312 in FIG. 5). The engaging member 330 is disposed in the engaging member disposing portion 312 (FIG. 5) so as to closely contact the inclined portion 313 formed on the inner circumferential surface of the fixing member 310.

In the present specification, the line contact is a line contact in which the inclined portion 313 and the outer circumferential surface of the engaging member 330 are in contact with each other at a predetermined angle (a) so that the surface of the engaging member 330 And only one end thereof is in contact with the inclined portion 313. 11, a distal end portion of the engaging member 330 tapers to form a distal end surface 336, and the end surface 336 has a constant area with the inclined portion 313, Is also considered to be included in the line contact. A space 312a may be formed between the inner circumferential surface of the fixing member 310 and the outer circumferential surface of the coupling member 330 by the line contact.

The engaging member 330 may be in close contact with the inclined portion 313 by the elastic member 350. That is, the elastic member 350 may be disposed inside the fixing member 310 to push the coupling member 330 toward the inclined portion 313. The elastic member 350 may be a spring.

A washer 360 may be disposed between the elastic member 350 and the engaging member 330. The elastic member 350 may cause the coupling member 330 to pass through the inner circumferential surface of the coupling member 330 by the washer 360 or the coupling powder 331 of the coupling member 330 may contact with the elastic member 350 It is possible to effectively prevent deviation from each other due to the difference. The passage of the elastic member 350 to the inner circumferential surface of the coupling member 330 may also be prevented by adjusting the inner diameter of the coupling member 330 and the outer diameter of the elastic member 350 .

The fixing member 310 may include an elastic member fixing groove 316 for centering the elastic member 350. 11, the elastic member 350 may be disposed so as not to be in close contact with the inner circumferential surface of the fixing member 310. As shown in FIG. In this case, the elastic member 350 is biased to one side of the inner circumferential surface of the fixing member 310, so that the coupling member 330 can not be properly pushed toward the inclined portion 313. An elastic member fixing groove 316 for centering the elastic member 350 can be formed on the fixing member 310 and the elastic member 350 is fixed to the elastic member fixing groove 316 And may be disposed in the center of the fixing member 310.

According to one embodiment of the present invention, the arm member 300 may include means for centering the engagement member 330 in the internal space 312 of the fastening member 310, May be a second protrusion 318 formed on the inner surface of the fixing member 310. [ When the second protrusion 318 is formed, the other end of the coupling member 330 and the inner surface of the fixing member 310 may be disposed so as to be adjacent to each other, Can be disposed in the center of the fixing member 310 without being deviated to one side. That is, when the engaging member 330 receives an unexpected force, particularly, the second male threaded portion 234 of the second male member 230 is inserted in the crooked direction without being inserted into the engaging member 330 in the normal direction The engaging member 330 can be disposed in the center of the fixing member 310 without being deviated to one side so that the second male screw portion 234 and the engaging member 330 are normally engaged with each other, .

Further, in the case where the segments for the tunnels to which the longitudinal coupling device 100 according to the present invention is attached are mutually bonded, one of the segments for the tunnel is moved in a predetermined direction The joint surfaces of the segments for tunneling to be joined do not completely contact each other, and a phenomenon in which one side between the joint surfaces is opened can be prevented by the second projections 318. [

As described above, the elastic member mounting groove 334 may be formed in the coupling member 330, and the elastic ring 335 may be mounted in the elastic ring mounting groove 334, The coupling powder 331 constituting the coupling member 330 may be coupled by the coupling ring 335. Hereinafter, the formation position of the elastic ring coupling groove 334 will be described.

Referring to FIG. 11, one end of the coupling member 330 is pushed by the elastic member 350 to abut the inclined portion 313 of the fixing member 310. Therefore, one end of the coupling member 330 is pressurized in the inner direction of the coupling member 330 by the inclined portion 313 which is tapered, whereby the coupling powder 330 9, 331) are also subjected to a force capable of being coupled with each other, that is, a binding force.

However, since the other end of the coupling member 330 is not capable of receiving the coupling force, it is necessary to provide the same force as the coupling force. Therefore, the elastic ring mounting groove 334 may be biased toward the other end of the coupling member 330, and the elastic ring mounting groove 334 may be fitted with an elastic ring 335. The other end of the binding powder (331 of FIG. 9) constituting the coupling member 330 is also able to receive the binding force by the elastic ring 335.

On the other hand, the elastic ring 335 may be thicker than that shown in Fig. When the elastic ring 335 is mounted on the elastic ring mounting groove 334, the elastic ring 335 can come into contact with the inner peripheral surface of the fixing member 310, Lt; RTI ID = 0.0 > a < / RTI >

Further, since the elastic ring 335 is formed thick, the other end of the coupling member 330 can be disposed in the center of the fixing member 310 without being deviated to one side. That is, the other end of the engaging member 330 receives a force from the upper, lower, left, and right directions by the thick elastic ring 335, or the elastic ring 335 presses the bottom surface of the engaging member 330 in the gravity direction The engaging member 330 can be disposed in the center of the fixing member 310. [ In this case, the thickness of the elastic ring 335 may preferably be constant.

In the process of inserting the second male screw portion 234 into the engaging member 330 to engage the engaging member 330 and the second male screw portion 234, the elastic ring 335 is formed thick And by forming the second projections, it is possible to prevent the coupling member 330 from being biased to one side at the time of initial insertion and the insertion process thereafter.

As described above, the arm member 300 may further include a reinforcing rope portion 315, and the reinforcing rope portion 315 may connect the arm member 300 to the tunneling segment 10 It can be firmly embedded and fixed.

The arm member 300 can be embedded and fixed in the tunnel segment 10 so that the insertion port 311 of the fixing member 310 is exposed toward the other longitudinal joint surface 11b of the tunnel segment 10. [ have.

FIG. 12 is a view showing a state where the male member and the female member of FIG. 11 are combined.

Referring to FIG. 12, the second male threaded portion 234 of the second male member 230 is engaged with the engaging member 330 through the insertion port 311 of the female member 300.

The inner diameter of the coupling member 330 may be shorter than the outer diameter of the second male threaded portion 234 and the inner diameter of the second male threaded portion 234 may be smaller than the outer diameter of the second male threaded portion 234. [ The inner diameter of the engaging member 330 may be longer than the outer diameter of the second male threaded portion 234.

In order to increase the inner diameter of the engaging member 330, that is, to open the engaging member 330 up, down, left, and right in the process of inserting the second male threaded portion 234 into the engaging member 330 And is retracted toward the elastic member 350 along the inclined portion 313 in response to the reaction force of the elastic member 350. At this time, the line contact between the inclined portion 313 and the engaging member 330 is maintained.

In the retreating process, the engaging member 330 has a left-right wide-angle end (reference to Fig. 12) in which the inner diameter of the distal end of the insertion port 311 side is longer and the inner diameter of the elastic member 350 is shorter Shape.

FIG. 13 is a cross-sectional view of the fixing member and the engaging member according to another embodiment of the present invention, which corresponds to FIG. 12. FIG.

13, in accordance with an embodiment of the present invention, the arm member 300 may include a means for centering the engagement member 330 in the inner space 312 of the fixing member 310, The means for arranging the center may be a first protrusion 338 formed at a distal end of the engaging member 330 in a direction perpendicular to the engaging member 330. When the first protrusion 338 is formed, the first protrusion 338 and the inner surface of the fixing member 310 can be disposed closer to each other, 310) without being tilted to one side. That is, when the engaging member 330 receives an unexpected force, particularly, the second male threaded portion 234 of the second male member 230 is inserted in the crooked direction without being inserted into the engaging member 330 in the normal direction The engaging member 330 can be disposed in the center of the fixing member 310 without being deviated to one side so that the second male screw portion 234 and the engaging member 330 are normally engaged with each other, .

Further, in the case where the segments for the tunnels to which the longitudinal coupling device 100 according to the present invention is attached are mutually bonded, one of the segments for the tunnel is moved in a predetermined direction So that the joint surfaces of the segments for tunneling which are to be joined do not completely come into contact with each other and the first protrusions 338 can prevent the one side between the joint surfaces from being widened. The first projecting portion 338 may have the second male threaded portion 234 to engage the engaging member 330 and the second male threaded portion 234 similarly to the second projected portion 318 described above. In order to prevent the coupling member 330 from being biased in the insertion process after the first insertion in the process of inserting the coupling member 330 into the coupling member 330,

14 to 16 are views for explaining slip prevention of the longitudinal coupling device according to the present invention. The screw threads of the second male screw portion 234 of the second male member 230 and the female screw portion 332 of the engaging member 330 are exaggerated for the sake of explanation in Figs.

Here, the slip means that the second male member 230 is completely inserted into the female member 300, and then the male member 300 and the second female member 230 are subjected to a predetermined lateral pressure or tension The second male member 230 and the female member 300 are spaced apart from each other by a predetermined clearance so that the threaded lines of the second male threaded portion 234 and the second female threaded portion 332 are not misaligned, (Left and right direction in FIG. 10) of the arm member 300 and the arm member 300, respectively.

14, in inserting the second male member 230 into the female member 300, the male thread portion of the second female screw portion 332 of the engaging member 330 and the male thread portion of the second male member 230 The screw threads of the second male threaded portion 234 of the second threaded portion 234 may come into contact with each other, and this condition necessarily occurs instantaneously in order to engage the threads. If the angle a1 of the inclined portion 313 and the angle a2 of the thread of the second male screw portion 234 are equal to or similar to each other in the above state, It is possible to move to the lower side and to move to the left side.

Referring to FIG. 15, the inclined portion 313 and the engaging member 330 can be kept in contact with each other by the downward and leftward movement, and thereby the slip can be completely prevented.

If the angle a1 of the inclined portion 313 is greater than the angle a2 of the thread of the second male screw portion 234 by a predetermined value, It is impossible to move to the lower side and to move to the right side only. Referring to FIG. 16, in this case, the angle of the inclined portion 313 is sufficiently large, so that the horizontal distance between the inclined portion 313 and the engaging member 330 is very small, and the slip can be minimized.

If the angle a1 of the inclined portion 313 is smaller than the angle a2 of the thread line of the second male screw portion 234 by a predetermined value, the engaging member 330 moves downward In this case, only a very fine horizontal interval appears due to the difference between the angle a1 of the slope part 313 and the angle a2 of the screw thread of the second male screw part 320, Only the slip of the numerical value occurs.

That is, according to the present invention, the slip can be minimized as well as completely prevented.

17 to 19 are views showing a method of disassembling a segment for a tunnel according to an embodiment of the present invention, wherein FIG. 17 shows a case where the segments 10a and 10b for a tunnel are connected to the longitudinal coupling device 100 ). ≪ / RTI >

17, a segment 10a for a tunnel to be disassembled is joined to a segment 10b for an adjacent tunnel, and an arm member 300a, which is fixedly embedded in a segment 10a for a tunnel to be disassembled, 230 are not coupled. According to an embodiment of the present invention, a second tool insertion port 320 is formed in the arm member 300a, a first tool insertion port 212 is formed in the first water member 210, A first tool passage 15 communicating the second tool insertion port 320 and the first tool insertion port 212 is formed in the segment 10a for a tunnel to be connected.

A passage communicating from the insertion port 311 of the arm member 300a fixedly embedded in the segment 10a to be disassembled to the second water member 230 coupled to the first water member 210 And the tool 1000 can be inserted through the passage.

18, the tool 1000 inserted through the passage can be engaged with the tool engagement portion 236 of the second water member 230, and by rotating the tool 1000, The member 230 can be rotated.

The second member 230 can be retracted in the direction of the first tool insertion port 212 (left direction in FIG. 18) by the rotation, and the second member 230 can be retracted The threaded portion 234 can be separated from the arm member 300b fixedly embedded in the adjacent tunnel segment 10b.

When the second water member 230 and the arm member 300b are separated from each other, the tunnel segment 10a to be disassembled can be completely separated from the adjacent tunnel segment 10b, 10a can be disassembled (see Fig. 19).

The first male threaded portion 232 and the second male threaded portion 234 of the second male member 230 are engaged with the first female threaded portion 214 of the first male member 210 and the female threaded portion 234 of the female member 300, The first female screw portion 214 and the first male screw portion 234 are engaged with the second female screw portion 332 to rotate and move the second male member 230 simultaneously with the threaded engagement. 232, the threads of the second male threaded portion 234 and the second female threaded portion 332 should have the same thread direction, and preferably have the same pitch (the distance between the bone of the threaded thread and the bone or the mountain and the mountain) .

20 to 22 are views showing a method of disassembling a segment for a tunnel according to another embodiment of the present invention.

20 to 22, a segment 10 for a tunnel according to an embodiment of the present invention may be formed on an upper surface or a lower surface of the tunnel segment 10, A second tool passage 17 communicating with the first tool insertion port 212 of the first male member 210 may be formed.

In this case, the tool 1000 may be a tool having a '' 'shape, and by inserting the tool 1000 into the first tool insertion port 212 through the second tool passage 17, The first male member 1000 and the second female member 230 can be engaged with each other to rotate the second male member 230.

When the second water member 230 rotates, the second water member 230 retracts toward the first tool insertion port 212, thereby disengaging the tunnel segment 10 .

Hereinafter, the transverse coupling apparatus according to the present invention will be described. The transverse coupling device comprises a male socket (500) and an female socket (600).

The male socket 500 and the female socket 600 are installed on one side and the other side of the lateral joint surface of the segment 10 for a tunnel according to the present invention.

23 is a view showing a male socket of a transverse coupling apparatus according to an embodiment of the present invention.

Referring to FIG. 23, a male socket 500 according to the present invention includes a head portion 510, a landing fixing portion 530, and a connection portion 520.

The head 510 is inserted into and slid into the female socket 600 to be coupled to the female socket 600.

The embedding fixture 530 is embedded in the lateral joint surface of the tunnel segment 10 according to the present invention.

The connecting portion 520 connects the upper head portion 510 and the embedment fixing portion 530 and is formed thinner than the head portion 510.

24 is a plan view of an arm socket of a transverse coupling device according to an embodiment of the present invention, Fig. 25 is a cross-sectional view taken along line DD of Fig. 24, Fig. 26 is a cross- Is a cross-sectional view taken on line FF of Fig.

The female socket 600 according to an embodiment of the present invention may include an insertion portion 610 and a coupling portion 630.

The insertion portion 610 may include an insertion space portion 612, a fourth guide portion 614, and a fifth guide portion 616.

The head 510 of the male socket 500 is inserted into the insertion space 612.

The head segments 510 of the male socket 500 are inserted into the female socket 600 while the segments 10 for the tunnel are joined to each other to join the segments 10 for a tunnel. The head 510 of the male socket 500 may be inserted into the insertion space 612 of the female socket 600 if the segments 10 to be joined to each other are perfectly positioned and not adjacent to each other It becomes difficult to be inserted.

The fourth guide part 614 and the fifth guide part 616 guide the insertion of the head part 510 into the insertion space part 612 so that the head part 510 can be smoothly inserted. The insertion space portion 612 of the female socket 600 is shaped to have an upper light-tight narrowing shape and a shape becoming narrower from the upper side to the lower side by the fourth guide portion 614 and the fifth guide portion 616.

Referring to FIGS. 24 and 25, the fourth guide portion 614 may be formed at one end surface of the insertion space portion 612. Referring to FIGS. 24 and 26, the fifth guide portion 616 may be formed on both sides of the insertion space 612.

The coupling portion 630 may include a coupling space 632, a fixing portion 634, and a sixth guide portion 640.

The head portion 510 of the male socket 500 inserted into the insertion portion 610 is slidably engaged with the coupling space portion 632. [

The fixing portion 634 may include an upper fixing portion 636 and a groove portion 638. The upper fixing part 636 forms the upper surface of the coupling space part 632. The groove portion 638 provides a space in which the connection portion 520 of the male socket 500 can be positioned when the head portion 510 of the male socket 500 is coupled to the engagement space portion 632 .

The head portion 510 of the male socket 500 is coupled to the engagement space portion 632 by the fixing portion 634. [

The engaging portion 630 may include a sixth guide portion 640.

The sixth guide portion 640 guides the sliding of the head 510 of the male socket 500.

Referring to FIGS. 25 and 26, the sixth guide portion 640 may be formed inside the upper fixing portion 636. When the sixth guide part 640 is formed on the upper fixing part 636, the head part 510 slides so that the head part 510 is moved in the inner space side direction of the engagement space part 632 (Lower side in Fig. 25). Therefore, as compared with the case where the sixth guide portion 640 is formed on the opposite side of the upper fixing portion 636, that is, below the engagement space portion 632, the length of the tunnel segment 10 The distance between the bonding surfaces can be reduced.

FIG. 28 is a plan view of an arm socket of a transverse coupling apparatus according to another embodiment of the present invention, FIG. 29 is a sectional view taken along a line GG in FIG. 28, FIG. 30 is a sectional view taken along line HH in FIG. 28, Is a cross-sectional view taken along the line II in Fig.

An arm socket 700 according to another embodiment of the present invention shown in Figs. 28 to 31 is used for joining a key segment (10 'in Fig. 2) for a tunnel. Since the key segment 10 'for a tunnel has a joining face of a slanting line, the arm socket 700 also has a shape corresponding thereto.

The female socket 700 according to another embodiment of the present invention may include an insertion portion 710 and a coupling portion 730.

The insertion portion 710 may include an insertion space portion 712 and a seventh guide portion 716.

The head 510 of the male socket 500 is inserted into the insertion space 712.

The head segments 510 of the male socket 500 are inserted into the female socket 700 while the segments 10 for the tunnel are joined to each other to join the segments 10 for a tunnel. The head 510 of the male socket 500 may be inserted into the insertion space 712 of the female socket 600 if the segments 10 to be joined to each other are perfectly positioned and not adjacent to each other It becomes difficult to be inserted.

The seventh guide part 716 guides the insertion of the head part 510 into the insertion space part 712 so that the head part 510 can be smoothly inserted. The insertion space portion 712 of the female socket 700 is shaped to have an upper light-tight narrowing shape and a shape becoming narrower from the upper side to the lower side by the seventh guide portion 716.

Referring to FIGS. 28 and 30, the seventh guide part 716 may be formed on both sides of the insertion space part 712.

The coupling portion 630 may include a coupling space 732, a fixing portion 734, and an eighth guide portion 740.

The head portion 510 of the male socket 500 inserted into the insertion portion 710 is slidably engaged with the coupling space portion 732. [

The fixing portion 734 may include an upper fixing portion 736 and a groove portion 738. The upper fixing portion 736 forms the upper surface of the coupling space portion 732. The groove portion 738 provides a space in which the connection portion 520 of the male socket 500 can be positioned when the head portion 510 of the male socket 500 is coupled to the engagement space portion 732 .

The head portion 510 of the male socket 500 is coupled to the engagement space portion 732 by the fixing portion 734.

The engaging portion 730 may include an eighth guide portion 740.

The eighth guide portion 740 guides the sliding of the head 510 of the male socket 500.

Referring to FIGS. 29 and 30, the eighth guide portion 740 may be formed inside the upper fixing portion 736. When the eighth guide part 740 is formed on the upper fixing part 736, the head part 510 is slid so that the head part 510 is positioned on the inner space side of the engagement space part 632 (Lower direction in Fig. 29). Therefore, as compared with the case where the eighth guide portion 740 is formed on the opposite side of the upper fixing portion 736, that is, below the engagement space portion 732, a portion of the tunnel segment 10 The distance between the bonding surfaces can be reduced.

32 and 33 are views for explaining joining of segments for a tunnel by a longitudinal coupling device and a lateral coupling device according to an embodiment of the present invention.

Referring to Fig. 32, the newly joined tunnel segment 10g is joined to the tunnel segment 10d, 10e provided in the longitudinal direction and the tunnel segment 10f provided in the transverse direction.

As described above, on the joint surfaces of the segments for tunnels according to the present invention, the male members 200 and the female members 300 are provided on the longitudinally joined surfaces for longitudinal-directional joining, and the lateral joints A male socket 500 and an female socket 600 are embedded in the surface.

32, in order to join the newly joined tunnel segment 10g with the already installed tunnel segments 10d, 10e and 10f, firstly the tunnel segment 10g to be newly joined is installed in the laterally installed tunnel 10g, And are adjacent to each other in the direction of the segment 10f. The head 510 of the male socket 500 of the segment 10g newly joined by the adjacency is inserted into the female socket 600 of the laterally installed tunnel segment 10f.

Referring to Fig. 33, the newly joined tunnel segments 10g are adjacent to each other in the direction of the tunnel segments 10d and 10e installed in the longitudinal direction. The second male threaded portion 234 of the male member 200 of the tunnel segment 10g newly joined by the adjacency is inserted into the arm member 300 of the tunnel segment 10d or 10e installed in the longitudinal direction do.

The tunnel segment 10g newly joined by the above process is joined to the previously installed tunnel segment 10d, 10e, 10f.

33, the distance by which the head 510 of the male socket 500 is inserted and slid into the female socket 600 is larger than the distance between the second male thread portion of the male member 200 projecting from the segment 10g for the tunnel 234, respectively.

This is because when the head 510 of the male socket 500 is inserted into the female socket 600 and the sliding distance is shorter, the second male threaded portion 234 of the male member 200 is moved in the longitudinal direction The head 510 of the male socket 500 can not be inserted into the female socket 600 by being caught by the joint surfaces of the installed tunnel segments 10d and 10e, The male member 200 and the female member 300 are prevented from being fully engaged even if the male member 600 is fully engaged.

In addition, by forming the sliding distance longer, the joining of the newly joined tunnel segment 10g and the tunnel segment 10d, 10e installed in the longitudinal direction can be made easier. This is because before the water member 200 of the newly joined tunnel segment 10g is inserted into the arm member 300 of the tunnel segment 10d or 10e installed in the longitudinal direction, The newly installed tunnel segment 10g is leveled with the previously installed tunnel segment 10d and 10e and the previously installed tunnel segment 10d and 10e are guided, As shown in FIG. That is, the water member 200 is inserted into the arm member 300 in a state where the newly installed tunnel segment 10g is not horizontally aligned with the previously installed segments 10d and 10e, It is possible to prevent the arm member 300 from being properly engaged, and the joining can be easily performed.

The longitudinal coupling device 100 according to the present invention can be separated as described above, and the male and female sockets 500 and 600, which are transverse coupling devices, It is possible to easily disassemble the segment 10 for a tunnel according to the present invention.

34 is a view for explaining the joining of the segments for the tunnels by the longitudinal coupling device and the lateral coupling device according to another embodiment of the present invention.

Referring to Fig. 34, a key segment 10k for a tunnel to be newly joined is joined to a tunnel segment 10dh provided in the longitudinal direction and a tunnel segment 10i, 10j provided in the transverse direction.

As described above, the male member (200) and the female member (300) are provided on the longitudinally joined surfaces for joining in the longitudinal direction on the joining surfaces of the key segments for the tunnels according to the present invention, A male socket (500) and an female socket (700) are embedded on the joint surface.

34, in order to join a tunnel segment 10k for a tunnel to be newly joined with a tunnel segment 10h, 10i, 10j newly installed, a tunnel segment 10k for a tunnel, (10h, 10i, 10j).

The head 510 of the male socket 500 of the key segment 10k newly joined by the adjacency is inserted and slid into the female socket 700 of the laterally installed tunnel segments 10i and 10j, The second male threaded portion 234 of the male member 200 of the newly joined tunnel key segment 10k is inserted into the arm member 300 of the tunnel segment 10h installed in the longitudinal direction.

By the above procedure, the key segment 10k for a tunnel newly joined is joined to the previously installed tunnel segments 1h, 10i, 10j.

34, the distance by which the head 510 of the male socket 500 is inserted and slid into the female socket 700 is larger than the distance by which the male thread 500 of the male member 500, May be formed longer than the length of the protrusion 234.

This is because when the head 510 of the male socket 500 is inserted into the female socket 700 and the sliding distance is shorter, the male socket 500 and the female socket 700 are fully engaged To prevent the male member (200) and the female member (300) from being fully engaged.

Further, by forming the sliding distance longer, the joining of the newly joined tunnel segment 10k and the tunnel segment 10h provided in the longitudinal direction can be made easier. This is because before the water member 200 of the newly joined tunnel segment 10k is inserted into the arm member 300 of the tunnel segment 10h installed in the longitudinal direction, The movement of the use segment 10g is guided so that the newly installed tunnel segment 10k can be moved to the previously installed tunnel segment 10h in the horizontal direction with the previously installed tunnel segment 10h to be. That is, when the newly installed tunnel segment 10k is not horizontally aligned with the previously installed segment 10h, the water member 200 is inserted into the arm member 300 so that the water member 200, The joining of the member 300 can be prevented and the joining can be facilitated.

The longitudinal coupling device 100 according to the present invention can be separated as described above, and the male and female sockets 500 and 700, which are transverse coupling devices, It is possible to easily disassemble the segment 10 for a tunnel according to the present invention.

10: segment for tunnel 100: longitudinal coupling device
200: water member 210: first water member
230: second male member 300: female member
310: fixing member 330: coupling member
500: male socket 600, 700: female socket

Claims (8)

A longitudinal coupling device and a lateral coupling device provided on each of the longitudinally joined surface and the transverse bonded surface,
Wherein the longitudinal coupling device comprises:
And a second male member having a first male member, a first female screw portion and a second male screw portion formed with a first tool insertion port and a first female screw portion communicating with each other on an inner circumferential surface thereof and having a tool engagement portion formed at one end thereof, A male member formed by screwing the female screw portion and the first male screw portion; And
An arm member including a fixing member including an insertion port and an inner space, and a coupling member disposed in the inner space and having a second female threaded portion formed on an inner circumferential surface thereof;
Lt; / RTI >
Wherein the male member and the female member are engaged by the engagement of the second male threaded portion and the second female threaded portion and are separable by rotation of the tool engagement portion,
The transverse coupling device comprises:
A male socket including a head; And
An arm socket to which the head part is inserted and slidably coupled;
/ RTI >
Wherein the longitudinal coupling device and the transverse coupling device are capable of simultaneous joining and disassembly in longitudinal and transverse directions. The method according to claim 1,
Wherein the fixing member includes an inclined portion formed on the inside of the insertion port, and one end of the engaging member is brought into close contact with the inclined portion. The method according to claim 1,
A second tool insertion port is formed in the arm member,
And a first tool passage communicating the first tool insertion port of the first water member and the second tool insertion port is formed in the segment for the tunnel. The method according to claim 1,
And a second tool passage communicating with the first tool insertion port of the first water member is formed in the segment for the tunnel. The method according to claim 1,
Wherein the female socket of the transverse coupling device comprises a guide portion for guiding the insertion of the socket head. The method according to claim 1,
Wherein the female socket includes a guide portion for guiding sliding of the male socket head,
Wherein the sliding portion of the head is guided by the guide portion so that the male and female sockets are engaged with each other. The method according to claim 6,
And the guide portion is formed inside the upper fixing portion of the female socket. The method according to claim 1,
The distance that the male socket head is slidably inserted into the female socket,
And a length of the second water member protruding from the segment for the tunnel is longer than a length of the second water member.

Images