KR101256494B1 - Precast tunnel structure construction method with improved joints connection capability - Google Patents

Abstract

PURPOSE: A construction method of a precast tunnel structure including the improved connection performance of a ceiling unit and a longitudinal connection unit is provided to improve longitudinal rigidity of a tunnel and displacement control of the ceiling unit by sufficiently securing the connection performance of segmented segments. CONSTITUTION: A construction method of a precast tunnel structure including the improved connection performance of a ceiling unit and a longitudinal connection unit comprises a step of installing a base structure in order to be continued to ground in a longitudinal direction; a step of drawing segments(110,120) and connecting segmented segments in the ceiling unit by using a connection unit(200); and a step of connecting segments in the longitudinal direction by using a connection bolt(250) and a connection nut(260). [Reference numerals] (a) Embodiment 1; (b) Embodiment 2; (c) Embodiment 3;

Description

PRECAST TUNNEL STRUCTURE CONSTRUCTION METHOD WITH IMPROVED JOINTS CONNECTION CAPABILITY}

The present invention relates to a precast tunnel structure construction method with improved ceiling and longitudinal joint joining performance. More specifically, the present invention relates to a precast tunnel structure construction method for constructing a tunnel structure by continuously connecting segments segmented to a foundation structure.

In constructing the detachable tunnel, a single arch structure 10 having a predetermined width in the longitudinal direction of the tunnel is made of a precast concrete member in the factory as shown in FIG. 1A, and then transferred to the site, so that both edges of the tunnel are removed. Both ends of the single arch structure 10 are placed on the foundation 1 installed accordingly. In this way, a plurality of single arch structures 10 are continuously used in the longitudinal direction of the tunnel.

At this time, there is a significant restriction on the size of the single arch structure 10 in order to manufacture and transport a single arch structure 10 consisting of a single member in the transverse direction of the tunnel at the factory.

Therefore, the conventional method of assembling a single arch structure 10 as a single member as in the prior art, despite the advantages that can minimize the field work and can quickly construct a tunnel, the width is narrow in the tunnel transverse direction There is a limit that can be applied only to small tunnels with low height.

Accordingly, a method of constructing the single arch structure 10 while being connected to it is also introduced in FIG. 1B.

That is, as shown in FIG. 1B, the lower end portions are supported on the foundation structure 1, but the left and right segment arch members 11 and 12 made of precast members are connected at the ceiling to form an arch structure 10. The arch structure 10 has a structure in which a plurality of consecutively arranged longitudinally is connected;

The ceiling end portions of the left and right segmented arch members 11 and 12 have recesses cut out from the end face and the longitudinal side surface of the ceiling part to form a space, respectively, and are formed on both sides of the longitudinal direction. Protruding portions 21 are formed at the ceiling ends of the right segment arch members 11 and 12 by the formation of cutouts 20 on both sides, and the bottom plate portion 22 is formed at the lower portion of the cutout 20 by the length of the protruding portion 21. ) Has a structure in which it exists;

In the state in which the left and right segment arch members 11 and 12 are continuously disposed in the longitudinal direction, the fastening rods 60 are disposed in the longitudinal direction and adjacent to the longitudinal direction between the segment arch members arranged in the longitudinal direction. The fastening rods 60 are fixed and fixed to the protrusions 21 of the arranged segmented arch members so that the segmented arch members arranged in the longitudinal direction back and forth are engaged;

When the ceiling end portions of the left and right segmented arch members 11 and 12 are disposed to be in contact with each other, the protrusions 21 of the left and right segmented arch members 11 and 12 are in contact with each other. The bottom plate portions 22 of the members 11 and 12 also come into contact with each other, and the cutout portions 20 of the left and right segmented arch members 11 and 12 also communicate between the left and right sides, and the cutout portions 20 communicate with each other. Filling material (not shown) is filled in the space of the), it can be seen that the left, right segment arch members (11, 12) provides a precast arch tunnel that is integrally connected to the rigid structure in the ceiling.

At this time, in connecting the segmented arch member by rigid connection, Figure 1b is connected to the two divided arch members, but may be divided into three or more to favor the production and transport.

However, if three or more segmented arch members are used, connecting parts are formed too much in the parts other than the ceiling part and ceiling part of the arch tunnel, so there is more work for connecting segmented segments. It is desirable to form segments as segmented as possible.

1C and 1D show a perspective view of a tunnel structure and a fixing means constructed by fixing conventional segments to each other.

That is, as shown in FIG. 1C, the first and second segments 11 and 12 (segmented arch members) are arcuate, so that the earth pressure, hydraulic pressure, and traffic load acting from the outside are axial in the first and second segments 11 and 12. Since it acts as a compressive force, economical cross-sectional design is possible by making the most of the high compressive strength of concrete.

This arcuate structure has almost no cracks due to the nature of the concrete supporting the compressive force, so that the maintenance of the structure is easy, and the base structures 31 and 32 are installed on the base structures 31 and 32 to interconnect and fix the plurality of first segments 11 adjacent to each other. And fixing means for interconnecting and fixing the plurality of second segments 12 adjacent to each other.

The fixing means fixes the plurality of first segments 11 adjacent to each other and fixes the plurality of second segments 12 adjacent to each other.

Each of the fixing means 50 is a reinforcing bar (51a, 51b) (52a, 52b) is arranged so that a part protrudes to the outer edge of the end of each of the first and second segments 11, 12, as shown in Figure 1d, On the upper surface of the boundary between the first segment 11 and the second segment 12

Separating block 55 to be seated, and concrete (53) (54), and the concrete (53) (54) and the separation block (poured) so that each reinforcing bar (51a, 51b) (52a, 52b) is laid The waterproof film 56 is applied to the outer surface of the 55, and the waterproof protective film 57 is applied to the surface of the waterproof film 56.

The separation block 55 employs a material such as styrofoam so that the poured concrete 53 and 54 are separated from each other, so that the sediment blocks 55 are filled on the outer circumferential surface of the first and second segments 11 and 12 to be constructed. In the process, the connecting portion of the first and second segments 11 and 12 may be hinged.

However, when connecting the segment to the hinge behavior, the fixing means used as shown in Figure 1d is complicated, and since there are no members connected in the lateral direction, construction precision is lowered during construction, and the amount of upward rise is increased when the outer surface is filled, so that waterproofness and durability are achieved. There is a problem of deterioration, and inevitably has to follow the inconvenience of having to separately process the connecting surface of the segment.

Therefore, the present invention is to solve the problem of providing a precast tunnel structure construction method to combine the segmented segment of the precast tunnel structure to be rotated spring behavior in the ceiling and longitudinal coupling portion more effectively combined segmented segment do.

The present invention to achieve the above object

In the precast tunnel structure construction method using the segmented segment, the segmented segment is easily connected by using the connecting bolt and the connecting nut in the connecting groove of the ceiling and the longitudinal coupling part so as to sufficiently secure the joining performance.

Furthermore, even when it is difficult to install a plurality of connecting bolts due to the space constraints of the connecting groove, it is possible to easily install a plurality of connecting bolts, which is advantageous to secure the joining performance of the segmented segments.

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According to the present invention, it is possible to sufficiently install the connection bolts required for the connection grooves formed in the ceiling and the longitudinal coupling portion in the precast tunnel structure construction method, thereby sufficiently securing the jointing performance of the segmented segments, thereby ensuring the displacement control of the ceiling and the tunnel. It is possible to construct a tunnel structure capable of increasing the longitudinal rigidity.

Figure 1a is a construction diagram of a conventional precast tunnel structure,
Figure 1b and 1c is a construction of the arch structure using a conventional segmented segment,
Figure 1d is a connection groove configuration of the arch structure using a conventional segmented segment,
Figures 2a and 2b is a perspective view of the segmented segment and the connecting means according to the first embodiment of the present invention,
3A and 3B are perspective views of a segmented segment and a connecting means according to Embodiment 2 of the present invention;
4A and 4B are perspective views of a segmented segment and a connecting means according to Embodiment 3 of the present invention;
5a, 5b and 5c is a view of the connection means of embodiments 1,2,3 of the present invention,
6a, 6b and 6c is a construction sequence diagram of the precast tunnel structure according to the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

Segmented segment and connecting means of the present invention (Example 1)

2a and 2b show a perspective view of the segmented segments 110 and 120 and the connecting means 200 of the present invention.

That is, it can be seen that the conventional segmented segments 110 and 120 are formed in the connection grooves S as shown in FIG. 2A, and the connection grooves S are formed in the longitudinal coupling portion in addition to the ceiling and the ceiling of the segmented segments 110 and 120. It can be seen that a plurality is formed so that the connection grooves communicate with each other, and the segments 110 and 120 segmented by the connection means 200 in the connected connection grooves are coupled to each other.

Segmented segments 110 and 120 are arcuate or semi-circular segments which are ceiling-coupled in a connecting groove S in which two left and right sides are laterally communicated with each other, and the segmented segments 110 and 120 are set to be in contact with each other in the longitudinal direction. It can be seen that the longitudinal coupling in the connected connecting groove of the segment other than the ceiling.

At this time, in the ceiling and longitudinal coupling, the connecting means 200 is such that the vertical connecting plate 210 having the fastening hole 211 is formed adjacent to each other in the connecting connection groove, but the vertical connecting plate 210 is vertically The lower portion is embedded in the segment 110, 120 is segmented and the upper portion is set to protrude into the connecting groove (S).

On the lower rear surface of the vertical connection plate 210, the vertical support plate 230 is formed to extend horizontally spaced apart from each other. This vertical support plate 230 is arranged to be embedded in the segmented segments 110 and 120 as well.

At this time, a plurality of support reinforcement 240 is formed on the side of the vertical support plate 230 so that the connecting means 200 is fixed to the segment segment is extended in the horizontal direction.

Accordingly, the support reinforcement 240 and the vertical support plate 230 are embedded in the segmented segments 110 and 120 so that the upper portion of the vertical connection plate 210 fixed to the vertical support plate 230 is exposed to the connection groove S so that the connection bolt ( 250) to be coupled to each other.

The worker inserts the fastening hole 211 formed in the vertical connection plate 210 adjacent to each other in the connecting groove 250 in the connection groove (S) and the connecting bolt 250 by the connection nut 260 vertical connection plate (210) It can be seen that the ceiling and longitudinal coupling of the segment (110, 120) segmented by fastening.

At this time, the ceiling coupling of the segmented segment (110, 120) is the vertical connecting plate 210 is in contact with each other in the transverse direction in the ceiling as shown in Figure 2a and 2b and the longitudinal width (d1) of the vertical connecting plate 210 is Slightly larger than the longitudinal width (d2), so as to sufficiently secure the transverse width (d3) of the coupling groove to insert the connecting bolt 250 in the coupling groove to be inserted into the fastening hole 22 of the vertical connecting plate. do.

It is preferable to use a double-end connection method (using a plurality of connecting bolts) by minimizing the width of the connecting groove in the lateral width d3 and installing a plurality of connecting bolts in the case of the longitudinal width d1. Do.

Also, the longitudinal coupling of the segmented segments 110 and 120 is also perpendicular to each other in the longitudinal coupling portion 210 in the longitudinal coupling portion as shown in FIGS. 2A and 2B and also the longitudinal width d1 of the vertical coupling plate 210. ) Is slightly larger than the longitudinal width (d2) of the connecting groove, and the connecting bolt 250 is also inserted into the connecting groove in the longitudinal width of the connecting groove to insert into the fastening hole (211) of the vertical connecting plate (2) d3) is sufficiently secured.

In addition, the lateral width (d3) of the connecting groove is minimized, and in the case of the longitudinal width (d1) to be able to install a plurality of connecting bolts to use a double-stage connection method (using a plurality of connecting bolts). desirable.

It can be seen from Example 1 that the segmented segments eventually bolted to each other, which allows the segmented segments to be hinged to each other but with a type of rotating spring (semi-hinge) connected.

That is, the bolt connection as in the present invention has the advantage of allowing the segmented segments to be securely coupled to each other while allowing rotation at the ceiling and longitudinal coupling sites of the segmented segments.

Segmented segment and connecting means of the present invention (Example 2)

3A and 3B show another configuration perspective view of the segmented segments 110, 120 and connecting means 200 of the present invention.

That is, it can be seen that the segmented segments 110 and 120 are also formed in the connection grooves S as shown in FIG. 3A, and the plurality of connection grooves are formed in longitudinal coupling portions other than the ceiling and the ceiling of the segmented segments 110 and 120. It is formed so that the connection grooves are in communication with each other so that the segments 110, 120 segmented by the connection means 200 in the communication connection grooves are coupled to each other.

Segmented segments 110 and 120 are also arcuate or semi-circular segments, the left and right of which are two ceilings coupled to each other in the connecting groove S of the ceiling, and the segmented segments 110 and 120 are set to be in contact with each other in the longitudinal direction. It can be seen that even in the connecting connecting groove of the segment segment facing in the direction.

At this time, the connecting means 200 in the ceiling coupling as shown in Figures 3a and 3b is the end vertical support plate 220 is exposed to the inner surface (S1) of the connecting groove (S) in communication with the lower connection groove (S) It can be seen that it is formed to be buried in the lower portion. It can be seen that the upper portion is formed so as to be exposed to the connection groove.

As a result, it can be seen that the end vertical support plates 220 are spaced apart from each other and are disposed to face each other in the transverse direction. The support reinforcement 240 extends horizontally on the rear surface of the end vertical support plates 220. It can be seen that the end vertical support plate 220 is extended to the rear side.

In this case, it can be seen that the two vertical connection plates 210 having fastening holes 211 are formed on the front surfaces of the both ends of the vertical support plate 220 so that the ends overlap each other at the central portion of the connection groove.

The fastening holes 211 of the vertical connecting plate 210 overlapped with each other are communicated in the longitudinal direction, so that it can be seen that two connecting bolts 250 can be installed one by one in the longitudinal direction using the connecting nut 260. have.

That is, in the second embodiment, it can be seen that the connecting grooves connect the segments segmented by the two connecting bolts 250 to each other, and the connecting bolts can be inserted and fastened in the longitudinal direction at the center of the connected connecting grooves. More reliable double-ended connection method (using two connecting bolts) as well as securing enough bonding performance when the connecting grooves of the same size by 2a are used. It can be seen that the space of the groove can be used more efficiently (using the space of the connected connecting groove).

Furthermore, in the longitudinal coupling as shown in FIGS. 3A and 3B, the connecting means 200 is also exposed in the connecting groove S, which is connected to the inner end surface S1 of the end vertical support plate 220, so that the lower portion is also the connecting groove ( S) It can be seen that it is formed to be buried in the lower portion and the upper portion is exposed.

It can be seen that the end vertical support plate 220 in the connecting groove (S) communicated with each other are spaced apart from each other in the longitudinal direction and the support reinforcement 240 extends horizontally on the rear surface of the end vertical support plate 220. It can be seen that the end vertical support plate 220 is extended to the rear side.

At this time, it can be seen that the vertical connection plate 210, which is formed with the fastening hole 211, is also extended on each of the two ends of the vertical support plate 220 and the ends overlap each other.

The fastening holes 211 of the vertical connecting plate 210 overlapped with each other are communicated in the horizontal direction so that it can be seen that two connecting bolts 250 can be installed one by one in the horizontal direction using the connecting nut 260. have.

It can also be seen that the segments segmented by the two connecting bolts 250 can be connected to each other and can be fastened by inserting the connecting bolts in the transverse direction at the center of the connected connecting grooves of the same size as shown in FIG. More reliable double-ended connection method (using two connecting bolts) as a reference for connecting grooves, which not only ensures sufficient joining performance, but also makes space for connecting grooves more efficient by inserting connecting bolts into the connecting grooves in the transverse direction. It can be seen that it can be used (using the space of the connecting groove connected).

As a result, it can be seen that the connection bolt according to the second embodiment of the present invention uses the internal space of the connection groove more effectively than the first embodiment, and also sufficiently secures the jointing performance of the segmented segment.

Segmented segment and connecting means of the present invention (Example 3)

4A and 4B show another configuration perspective view of the segmented segments 110, 120 and connecting means 200 of the present invention.

That is, it can be seen that the segmented segments 110 and 120 are also formed in the connecting grooves S as shown in FIG. 4A, and the plurality of connecting grooves are formed in the longitudinal coupling portion in addition to the ceiling and the ceiling of the segmented segments 110 and 120. The connection grooves are communicated with each other so that the segments 110 and 120 segmented by the connection means 200 in the connected connection grooves are coupled to each other.

The segment 110, 120 is also an arcuate or semi-circular segment, the left and the right of the two are ceiling-coupled in the connecting groove of the ceiling and each other, the segmented segment (110, 120) is set in contact with each other in the longitudinal direction in the longitudinal direction It is also longitudinally coupled to the communicating connecting grooves of the segmented segments that are in contact.

At this time, the connecting means 200 in the ceiling coupling as shown in Figures 4a and 4b is to be arranged vertically adjacent to each other laterally adjacent to the vertical connecting plate 210 formed with a fastening hole 211 in the connecting groove, the vertical The connecting plate 210 is installed vertically, but the lower part is embedded in the segment 110, 120 is segmented and the upper part is set to protrude into the connecting groove.

A support reinforcement 240 is formed on the lower rear surface of the vertical connecting plate 210 so as to be secured to the segmented segment.

In addition, both sides of the vertical connection plate 210 is set to contact the backing plate 270 is also formed with a fastening hole 271,

Inserting the connecting bolt 250 in the longitudinal direction into the coupling hole 271 of the backing plate 270 and the vertical connecting plate 210 to fasten the vertical connecting plate 210 by using the connecting nut 260. Eventually, the segmented segments 110 and 120 are combined.

That is, even in the connecting groove according to the third embodiment, it can be seen that the segments segmented by the two connecting bolts 250 can be connected to each other. It can be seen that the double-sided connection method (using two connection bolts) can be more reliably used based on the connection grooves of the same size shown in FIG. 2A.

Furthermore, in the longitudinal coupling as shown in FIGS. 4A and 4B, the connecting means 200 is also installed in the vertically connected connecting groove so that the vertical connecting plate 210 is in contact with the longitudinal direction, but in the segment 110 having the lower portion thereof. It is embedded and set so that the upper part protrudes into the connecting groove.

A support reinforcement 240 is also formed on the lower rear surface of the vertical connecting plate 210 so as to be secured to the segmented segment.

In addition, both sides of the vertical connection plate 210 is set to contact the backing plate 270 is also formed with a fastening hole 271,

Inserting the connecting bolt 250 in the transverse direction into the fastening hole 271 of the backing plate 270 and the vertical connecting plate 210 to fasten the vertical connecting plate 210 by using the connecting nut 260. Eventually, the segmented segment 110 is longitudinally coupled.

Also in the longitudinal coupling, it can be seen that the segments segmented by the two connecting bolts 250 can be connected to each other. It can be seen that the double-stage connection method (using two connecting bolts) can be used more reliably based on the same size of the connecting groove.

[Contrast of the segmented segment and the connecting means 200 of the present invention]

Figures 5a, 5b and 5c show the contrast in the same connecting groove of the segmented segment and the connecting means 200 of the present invention.

That is, it can be seen that the size of the segment and the size of the connecting groove communicated with each other by the connecting means according to the embodiments 1,2 and 3 are formed the same.

First, in the case of Figure 5a according to the conventional segmented segment (110 120) and connecting means it can be seen that one connecting bolt 250 constituting the connecting means is installed in the connecting groove is a single-stage method and transverse connecting bolt 250 Is installed in the direction

In contrast, as shown in FIGS. 5B and 5C, the connecting means (Examples 2 and 3) in the connecting groove according to the present invention have two connecting bolts 250 installed in the same connecting groove in the longitudinal direction as a double-end method. As a result, the space of the connection groove is efficiently used, and thus the connection force of the segmented segment can be effectively obtained.

[Segmented segment construction method using the double-stage connecting means of the present invention]

6A, 6B, and 6C sequentially illustrate a segmented segment construction method using the double shear connection means according to the present invention.

Such a construction method may be a construction for underground attachment structures such as urban centers, roads and railways, open tunnel sections, mountain tunnel entrances, exits, underground passages and waterway structures, and ecological tunnels.

First, as shown in Figure 6a to produce a segment (110, 120) segmented in the production site is brought to the site.

These segmented segments 110 and 120 are installed to be in contact with each other in the longitudinal direction as the members are installed in the shape of an arch when coupled to each other in the ceiling in the transverse direction.

In addition, as described above, the connecting means 200 and the connecting groove S are formed to be continuously installed by the longitudinal and transverse coupling.

Accordingly, the foundation structure 300 is installed to be continuous in the longitudinal direction on the ground first arranged.

The foundation structure 300 serves to support the segmented segment (110, 120) while the lower end of the segmented segment (110,120) to be a hinge connection.

Accordingly, when the construction of the foundation 300 is completed, the segmented segments 110 and 120 are lifted by lifting devices, respectively, and the segments 110 and 120 finally segmented from the ceiling are coupled to each other. At this time, a temporary vent (not shown) is installed in the lower part of the ceiling to facilitate the work.

Accordingly, the plurality of segmented segments 110 and 120 in the longitudinal direction are coupled to each other to be installed continuously.

This installation will be in the longitudinal coupling portion of the ceiling and segmented segments (110, 120) in the connecting groove will be a task to connect to each other using the connection bolt 250 and the connection nut 260, which is the connection means of the present invention ( Since the 200 is installed in the segment 110, 120, which is pre-segmented, the worker simply makes a connection using a wrench, a jig, or the like.

That is, in the ceiling and longitudinal coupling of the present invention, the segmented segments are connected using the connecting means according to the embodiments 1,2 or 2 according to FIGS. 2, 3 and 4.

For example, the connecting means according to the embodiments 1,2 or 3 is used for the ceiling coupling of the segmented segment, and the connecting means according to the embodiment 1,2 and the second embodiment used for the longitudinal coupling also the ceiling coupling. Just do it.

Of course, combinations of Embodiment 1 for ceiling coupling and Embodiment 2 or 3 for longitudinal coupling are also possible.

When the lateral and longitudinal installation and connection of the final segmented segments 110 and 120 is completed, the lower segments of the segmented segments 110 and 120 are inserted into the support grooves formed on the upper surface of the foundation structure as shown in FIG. Mounted at the bottom of (110,120), and the finishing concrete is poured so that the insert is embedded in the support groove.

Accordingly, as shown in FIG. 6C, the connection grooves of the final ceiling parts are finished using mortar, and the connection parts of the segmented segments 110 and 120 are waterproofed to complete the final tunnel structure construction.

This is to cover the final tunnel structure to allow the construction of the removable tunnel structure 100 to be completed.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a connected form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: tunnel structure
110, 120: segmented segment
200: connecting means
210: vertical connection plate
211: fastening hole
220: end vertical support plate
240: support steel
250: connecting bolt
260: connection nut
270: plate
271: fastening hole
300: foundation structure

Claims (6)

In the construction method of the precast tunnel structure to construct the segmented segment by combining the ceiling and longitudinal coupling,
The foundation structure 300 is installed on the ground, and the segmented segments 110 and 120 are lifted, and the segmented segments at the ceiling are coupled to the ceiling using the connecting means 200, and the segmented segments are continuously connected to each other in the longitudinal direction. Including longitudinal coupling using the connecting means 200,
The ceiling coupling using the connection means 200 is
Both vertical support plates are exposed to the inner surface (S1) of the connection groove (S) in the connection groove (S) communicated with the lower portion is formed to be embedded in the lower connection groove (S) and the upper portion is exposed to the connection groove (S) In the communicating connecting groove S, the vertical support plates are spaced apart from each other so as to face each other in the horizontal direction, and a plurality of vertical connecting plates having fastening holes are formed on the front surfaces of both vertical support plates so that the ends overlap at the center of the connecting grooves. The fastening holes of the vertical connecting plates overlapping each other so as to be formed are communicated in the longitudinal direction, so that a plurality of connecting bolts are installed using the connecting nuts in the longitudinal direction.
Longitudinal coupling using the connection means 200
The vertical connection plate 210 having the fastening hole 211 is formed to be adjacent to each other in the connected connection groove S, but the vertical connection plate 210 is vertically buried in the segments 110 and 120 whose lower portions are segmented. The upper part is set to protrude into the connecting groove (S), and the lower back surface of the vertical connecting plate 210 so that the vertical support plate 230 is formed to extend horizontally spaced apart from each other to be embedded in the segmented segment (110, 120) also The support reinforcement 240 is formed on the side of the vertical support plate 230 so that the connecting means 200 is securely fixed to the segmented segment so as to extend in the horizontal direction. The support plate 230 is embedded in the segmented segments 110 and 120 so that the upper portion of the vertical connection plate 210 fixed to the vertical support plate 230 is exposed to the connection groove S to be coupled to each other by the connection bolt 250. , Opened in connecting groove (S) Insert the fastening holes 211 formed in the vertical connection plate 210 adjacent to each other and the bolt 250 and fasten the connecting bolt 250 to the vertical connection plate 210 by the connection nut 260 and segment segments 110 and 120. Method for constructing a precast tunnel structure with enhanced joining performance of the ceiling and the longitudinal coupling, characterized in that the coupling. In the construction method of the precast tunnel structure to construct the segmented segment by combining the ceiling and longitudinal coupling,
The foundation structure 300 is installed on the ground, and the segmented segments 110 and 120 are lifted, and the segmented segments at the ceiling are coupled to the ceiling using the connecting means 200, and the segmented segments are continuously connected to each other in the longitudinal direction. Including longitudinal coupling using the connecting means 200,
The ceiling coupling using the connection means 200 is
The vertical connection plate 210 having the fastening hole 211 is formed to be adjacent to each other in the transverse direction in the connecting connection groove, the vertical connection plate 210 is installed vertically but the segment 110, 120 segmented lower It is buried and set so that the upper part protrudes into the connecting groove, and set to contact the backing plate 270, which is also formed with a fastening hole 271 on both sides of the vertical connecting plate 210, and is perpendicular to the backing plate 270 Insert the plurality of connecting bolts 250 in the longitudinal direction into the connecting hole 271 of the connecting plate 210 in the longitudinal direction to install by fastening the vertical connecting plate 210 using the connecting nut 260,
Longitudinal coupling using the connection means 200
The vertical connection plate 210 having the fastening hole 211 is formed to be adjacent to each other in the connected connection groove S, but the vertical connection plate 210 is vertically buried in the segments 110 and 120 whose lower portions are segmented. The upper part is set to protrude into the connecting groove (S), and the lower back surface of the vertical connecting plate 210 so that the vertical support plate 230 is formed to extend horizontally spaced apart from each other to be embedded in the segmented segment (110, 120) also The support reinforcement 240 is formed on the side of the vertical support plate 230 so that the connecting means 200 is securely fixed to the segmented segment so as to extend in the horizontal direction. The support plate 230 is embedded in the segmented segments 110 and 120 so that the upper portion of the vertical connection plate 210 fixed to the vertical support plate 230 is exposed to the connection groove S to be coupled to each other by the connection bolt 250. , Opened in connecting groove (S) Insert the fastening holes 211 formed in the vertical connection plate 210 adjacent to each other and the bolt 250 and fasten the connecting bolt 250 to the vertical connection plate 210 by the connection nut 260 and segment segments 110 and 120. Method for constructing a precast tunnel structure with enhanced joining performance of the ceiling and the longitudinal coupling, characterized in that the coupling. In the construction method of the precast tunnel structure to construct the segmented segment by combining the ceiling and longitudinal coupling,
Install the basic structure on the ground and lift the segmented segment to join the segmented segment at the ceiling using the connecting means, and the segmented segmented segment at the ceiling is longitudinally connected using the connecting means continuously in the longitudinal direction. Steps,
Longitudinal coupling using the connecting means
End vertical support plate 220 is exposed in the communication groove (S) is exposed to the inner surface (S1) of the connection groove (S) is formed so that the lower portion is embedded in the lower connection groove (S), the upper portion of the connection groove (S) End vertical support plate 220 in the connecting groove (S) communicated to be exposed to be spaced apart from each other to be disposed facing in the longitudinal direction,
Fastening of the vertical connecting plates 210 overlapped with each other by forming a plurality of vertical connecting plates 210 having fastening holes 211 formed on the front surfaces of both vertical support plates 220 so that the ends overlap each other at the center of the connecting groove. Holes 211 are communicated in the transverse direction to install a plurality of connection bolts 250 using the connection nut 260 in the transverse direction precast tunnel with improved joining performance of the ceiling and the longitudinal coupling portion Structure construction method. The method of claim 3,
The ceiling coupling using the connection means
Both vertical support plates are exposed to the inner surface (S1) of the connection groove (S) in the connection groove (S) communicated with the lower portion is formed to be embedded in the lower connection groove (S) and the upper portion is exposed to the connection groove (S) In the communicating connecting groove (S) the vertical support plate is spaced apart from each other to be arranged facing in the transverse direction,
A plurality of vertical connecting plates having fastening holes are formed on the front surfaces of the two vertical support plates so that the end portions overlap each other at the center of the connecting groove so that the fastening holes of the vertical connecting plates overlapping each other are vertically connected to close the plurality of connecting bolts. Method of constructing precast tunnel structure with improved joining performance of the ceiling and longitudinal coupling portion, characterized in that the installation using the connection nut in the direction. In the construction method of the precast tunnel structure to construct the segmented segment by combining the ceiling and longitudinal coupling,
Install the basic structure on the ground and lift the segmented segment to join the segmented segment at the ceiling using the connecting means, and the segmented segmented segment at the ceiling is longitudinally connected using the connecting means continuously in the longitudinal direction. Steps,
Longitudinal coupling using the connecting means
The vertical connecting plate 210 is installed in the vertically connected connecting grooves to be in contact with the longitudinal direction, the lower portion is embedded in the segment 110, the upper part is set to protrude into the connecting groove, the vertical connecting plate 210 Set to contact the backing plate 270, the fastening hole 271 is formed on both sides,
Inserting the plurality of connecting bolts 250 in the transverse direction into the fastening hole 271 communicated with the adding plate 270 and the vertical connecting plate 210 to the vertical connecting plate 210 using the connection nut 260. Method for constructing precast tunnel structure with improved joining performance of the ceiling and longitudinal coupling portion, characterized in that for fastening. 6. The method of claim 5,
The ceiling coupling using the connection means
The vertical connection plate 210 having the fastening hole 211 is formed to be adjacent to each other in the transverse direction in the connecting connection groove, the vertical connection plate 210 is installed vertically but the segment 110, 120 segmented lower Buried and set so that the upper part protrudes into the connecting groove,
Both sides of the vertical connection plate 210 is set to contact the backing plate 270 is also formed with a fastening hole 271,
The vertical connection plate 210 is inserted by using the connection nut 260 by inserting a plurality of connection bolts 250 in the longitudinal direction into the coupling hole 271 that communicates with the adder plate 270 and the vertical connection plate 210. Method of construction of precast tunnel structure with improved joining performance of the ceiling and longitudinal coupling portion, characterized in that the installation by fastening.

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