KR102410766B1 - A variable system formwork capable of construction of a bulkhead-separated escape passage and a construction method of bulkheads using it - Google Patents

Abstract

The present invention relates to a variable system formwork capable of constructing a bulkhead-separated type evacuation path and a method for constructing a bulkhead using the same. It is also intended for construction.
The variable system formwork capable of constructing a partition wall separation type evacuation passage according to the present invention comprises: first and second formwork panels 20 and 30 spaced apart from each other with a space in which concrete is poured; and a gap holder 40 for fixing the first and second formwork panels in a state of maintaining a gap, wherein the first formwork panel has a straight shape, and the second formwork panel is parallel to the first formwork panel A linear fixing part 31, and a variable part 33 connected to maintain a straight line on the fixing part on the fixing part or arranged at a different angle, wherein the second formwork panel includes the fixing part and the fixed part. The variable parts are arranged in a line along the vertical direction to construct a straight bulkhead together with the first formwork panel, or the variable parts are arranged in a direction orthogonal to the fixing part to construct a ceiling bulkhead.
According to the present invention, there is provided a bulkhead construction method using a variable system formwork capable of constructing a bulkhead separation type evacuation passage, comprising: a first step of installing a rail in a tunnel; a second step of mounting a carrier and a form assembly of a variable system form capable of constructing the bulkhead separation type evacuation passage on the rail installed in the first step; a third step of pouring concrete into the formwork assembly; a fourth step of curing the concrete poured in the third step; and a fifth step of moving the carrier and formwork assembly along the rail after curing the concrete, and constructing the bulkhead by repeating the third to fifth steps, wherein the second step is the shape of the bulkhead In accordance with this, the second formwork panel of the formwork assembly is converted into a straight or ceiling type to construct a straight bulkhead or a ceiling type bulkhead.

Description

A variable system formwork capable of construction of a bulkhead-separated escape passage and a construction method of bulkheads using it

The present invention relates to a formwork for the construction of a concrete structure (for example, a bulkhead separation type evacuation passage), and more particularly, by constructing a ceiling type bulkhead in a tunnel to form a bulkhead separation type evacuation passageway, and also to other structures (vertical type). It relates to a variable system formwork capable of constructing a bulkhead separation type evacuation passageway that can also be constructed with bulkheads) and a method of constructing a bulkhead using the same.

This section provides background information related to the content of the present application and is not necessarily prior art.

According to the Road Tunnel Disaster Prevention Facility Installation and Management Guidelines (Ministry of Land, Infrastructure and Transport Regulation No. 308, partially revised on August 31, 2020), the bulkhead separation type evacuation route is stipulated as follows.

『(3) Bulkhead separation type evacuation route

① Install in face-to-face tunnels with extension grade 3 or higher and in one-way tunnels where it is impossible to install an evacuation connection passage. However, the evacuation and evacuation tunnels are prioritized for tunnels with an extension grade of Grade 1.

② In the bulkhead separation type evacuation evacuation path, an evacuation connection path shall be installed in accordance with 5.3.2(1).

③ In the evacuation evacuation passageway, emergency lighting, guidance lamps, and pressurized equipment should be installed in accordance with the evacuation evacuation tunnel.

④ The emergency exit connected to the evacuation route must be equipped with a blocking door to block the inflow of smoke.

⑤ For easy access to the evacuation evacuation passage, a fixed or detachable staircase can be installed.

⑥ Among the tunnels in operation, evacuation and evacuation facilities should be installed in the following tunnels that do not comply with the current guidelines. However, if it is impossible to install a bulkhead-separated evacuation route for civil engineering reasons, an exception may be made through design deliberation in accordance with the Construction Technology Promotion Act.

go. Face-to-face tunnels with extension standards of grade 3 or higher

me. Tunnels in which the social risk by quantitative risk assessment exceeds the permissible limit only by adding a smoke control system among one-way tunnels

In addition, "If an evacuation evacuation tunnel cannot be installed for economic reasons or civil engineering reasons, a bulkhead-separated evacuation evacuation route may be installed after undergoing design deliberation in accordance with the Construction Technology Promotion Act."

Fig. 1 shows a partition wall separation type evacuation passageway, and a partition wall 2 is constructed next to the road of the tunnel 1, and a partition wall separation type evacuation escape passage 3 cut off from the road by the partition wall 2 is formed. The bulkhead 2 has a vertical part and a ceiling part and is constructed of concrete.

The bulkhead separation type evacuation route is divided into the cast-in-place method and the precast concrete method.

In the case of the on-site casting method, it is constructed by assembling a plurality of forms according to the shape of the wall and ceiling and dismantling them after curing the concrete. The disadvantage is that the construction cost is also increased.

In addition, since it is not a form exclusively for the construction of a bulkhead separation type evacuation path, defective assembly and poor construction may occur in the process of assembling and installing the forms.

The precast concrete method can shorten the construction period compared to the on-site casting method, but there is a problem in that it causes poor assembly and poor construction of walls and ceilings.

As an example of the precast concrete method, there is, for example, Patent Registration No. 10-2187673.

Registered Patent No. 10-2187673 discloses a bulkhead separation type evacuation passage installed inside a tunnel and used as an escape passage in case of emergency, wherein the lower end is combined with the upper part of the vehicle barrier of the tunnel and disposed in an upward direction with respect to the upper portion of the vehicle barrier of the tunnel. plate-shaped vertical panels made of precast reinforced concrete; a first coupling part in which a portion is formed in a block-out manner at the lower end and upper end of the vertical panel, respectively; a first iron plate coupled to the surface of the portion where the first coupling portion is formed; a second coupling part in which the whole is blocked out in the vertical direction at the center of both sides of the vertical panel when the vertical panel is installed; A plate-shaped horizontal panel made of precast reinforced concrete, one end coupled to the vertical panel and the other end coupled to the lining of the tunnel; a third coupling part formed in a block-out manner at an end of the horizontal panel coupled to the lining part; a second iron plate coupled to the surface of the portion where the third coupling portion is formed; When the horizontal panel is installed, it is formed in a block-out manner at both ends of the side, and the whole is blocked out so as to communicate with the second coupling part of the vertical panel at the portion coupled to the vertical panel, and the remaining portion is adjacent to the horizontal panel. a fourth coupling part in which only the upper part of the panels is blocked out so that the lower parts of the panels can come into contact with each other; The mortar is poured and cured in the second coupling part and the fourth coupling part in a state in which the horizontal panel and the vertical panel are installed; coupling means for coupling the vertical panel and the upper part of the vehicle protection wall of the tunnel, the vertical panel and the horizontal panel, and the horizontal panel and the lining portion; a third iron plate provided on the surface of the vertical panel on which the second coupling portion is formed and including an anchor bolt hole formed on the upper portion of the vehicle protection wall of the tunnel or a portion coupled with the horizontal panel; and a fourth iron plate provided on a surface of the horizontal panel on which the fourth coupling part is formed and having an anchor bolt hole provided in a portion coupled to the lining part.

Registered Patent No. 10-2187673

The present invention is to solve the above-mentioned problems, by constructing a ceiling-type bulkhead in a tunnel to form a bulkhead-separated evacuation passage, and by changing the shape of the form only, i.e., by changing the form to another type of structure (vertical type) The purpose of this is to provide a flexible system form that can construct a bulkhead separation type evacuation passage and a method for constructing a bulkhead using the same.

According to the present invention, a variable system formwork capable of constructing a partition wall separation type evacuation passage includes: first and second formwork panels spaced apart from each other with a space in which concrete is poured; and a gap holder for fixing the first and second formwork panels in a spaced state, wherein the first formwork panel is formed in a straight shape, and the second formwork panel is a straight fixing part, and the fixing part is on the fixing part. It includes a variable part connected to maintain a straight line on the same line as the fixed part or to be arranged at a different angle, wherein the fixed part and the variable part are used in a straight line in which the variable part is arranged in a line in the vertical direction or the variable part is orthogonal to the fixed part It is characterized in that it is arranged in the direction and is used to construct the ceiling part together.

The present invention is characterized in that the second formwork panel comprises a haunchi forming part.

According to the present invention, a bulkhead construction method using a variable system formwork capable of constructing a partition wall separation type evacuation passageway is a concrete bulkhead while moving a variable type system formwork capable of constructing a partition wall separation type evacuation passageway in the tunnel along the longitudinal direction of the tunnel. A partition wall separation type evacuation passage is constructed by constructing a partition wall, comprising a step of installing a rail, placing a variable system formwork capable of constructing the partition wall separation type evacuation passageway on the rail, and pouring and curing concrete in the formwork assembly; In accordance with the shape of the second formwork panel of the formwork assembly is converted to a straight or ceiling type, characterized in that the construction of a straight bulkhead or a ceiling type bulkhead.

According to the variable system formwork capable of constructing a bulkhead separation type evacuation passage according to the present invention and the bulkhead construction method using the same, the wall structure is concretely constructed using the first and second formwork panels, and in particular, the second formwork panel is vertically straight A ceiling-type bulkhead can also be constructed by arranging it in parallel to the first formwork panel to construct a straight bulkhead or by changing the angle of the variable part of the second formwork panel to construct a transverse ceiling part, that is, Since the ceiling type bulkhead and the vertical bulkhead are made only by changing the posture of the second formwork panel, handling according to commonality and cost can be reduced.

And, in the case of the ceiling-type bulkhead, the structurally necessary haunchi part can be formed as the haunchi forming part of the second formwork panel, so the structure can be satisfied without additional work, so the workability and constructability are very excellent.

1 is a front view of a tunnel showing a general bulkhead separation type evacuation passage.
2 is a block diagram of a variable system formwork capable of constructing a bulkhead separation type evacuation passage according to the present invention;
3 is a view of a state in which the variable system formwork capable of constructing a bulkhead-separated evacuation passage according to the present invention is converted to a construction position of a ceiling-type wall;
Figure 4 is a view showing the sliding type of the haunchi forming part applied to the formwork of the variable type system capable of construction of a bulkhead separation type evacuation passage according to the present invention.
5 is an exploded perspective view of a sliding haunchi forming part applied to a variable system formwork capable of constructing a bulkhead separation type evacuation passage according to the present invention;
6 is a view of a state in which a variable system formwork capable of constructing a bulkhead separation type evacuation passage according to the present invention is installed in a tunnel;
7 is a view showing a state of constructing a bulkhead separation type evacuation passage in a tunnel with a variable system formwork capable of constructing a partition wall separation type evacuation passage according to the present invention;

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

As shown in FIG. 2, the variable system formwork 100 capable of constructing a partition wall separation type evacuation passage according to the present invention is made as a formwork assembly 10 for concrete construction of the partition wall 2 of the partition wall separation type evacuation passageway. 1 and 2 include the formwork panels 20 and 30 and the spacer 40, a carrier 50 for carrying the formwork assembly 10, and a rail 60 for guiding the movement of the carrier 50.

The formwork assembly 10 is composed of first and second formwork panels 20 and 30 that form a space for pouring concrete and a spacer 40 .

The first formwork panel 20 is a fixed type (non-deformable), and is a normal formwork panel and has a straight shape when viewed from the side.

The second formwork panel 30 is configured to include a fixed part 31 (non-variable part), a haunchi forming part 32 and a variable part 33, and a variable part 33 (or haunchi forming part 32) and It is a variable type in which the variable part 33) is arranged in a line with the fixed part 31 or is arranged in a right angle (including all angles other than the line). That is, when constructing a straight wall, the variable part 33 is arranged in a line on the fixed part 31, and when constructing a wall with a horizontal ceiling, as shown in FIG. 3, the variable part 33 is a fixed part ( 31) will be switched at right angles to the arrangement.

The fixed part 31 and the variable part 33 have the same thickness.

The haunchi forming portion 32 is a triangular block shape to form a heonchi portion (2c) formed in the portion where the vertical portion (2a) and the ceiling portion (2b) of the partition wall (2) are connected, as shown in FIG. 1 . .

The haunchi forming part 32 should not change the cross section of the wall when constructing a straight wall, and when constructing a ceiling-type wall, the haunchi part must be formed, so as shown in FIG. 3, the hinge on the fixing part 31 (Hinge) connected while the variable portion 33 can be fixed.

At this time, the variable part 33 and the haunchi forming part 32 can be used to be combined with the first formwork panel 20 through the gap holder 40 when constructing a straight wall,

As shown in FIG. 4 in another way of the heonchi forming part 32, the heonchi forming part 32 may be configured in a slide-type (haunting type).

As shown in Figures 4 and 5, the variable portion 33 includes a receiving frame 34 in which the haunchi forming portion 32 is inserted into the bottom portion and the haunchi forming portion 32 is accommodated in the receiving frame 34 and is necessary It is converted to a position that is drawn out and slid to the outside of the city to form a heonchi part.

The heonchi forming unit 32 should be fixed at a position withdrawn from the housing frame 34 , for example, the old paper forming unit 32 is fixed with a pin 35 in a state drawn out from the receiving frame 34 .

Heonchi forming part 32 is possible without a separate fixing because the variable part 33 is arranged in line with the fixing part 31 in the state accommodated in the housing frame 34 .

The housing frame 34 is manufactured as a separate rectangular frame and fixed to the variable portion 32 through welding or fasteners (pins, etc.), so that the variable portion 32 can be used without changing the structure.

In addition, since the concrete is poured on the variable part 33 in a state where the variable part 33 is bent at a right angle to the fixed part 31, sagging of the variable part 33 may occur, and in particular, structurally, the fixed part 31 and the variable part Since the connection part of (33) is weak, a stopper (36) can be applied to this part.

The stopper 36 is used as a prefabricated or fixed type (fixed to the fixed part 31 or the variable part 33), and both sides are supported by the fixed part 31 and the variable part 33 so that these 31 and 33 are at right angles. to keep

Heonchi forming portion 32 is also possible to be installed to be slidable along the vertical direction up and down on the upper end of the fixed portion (31).

According to the above structure, it is very useful in that the haunchi part can be constructed without replacement of the formwork or complicated additional assembly.

Heonchi forming portion 32 is not limited to sliding, it is also possible to relocate by rotation type.

One or more sides of the front and rear between the first and second formwork panels 20 and 30 are blocked for concrete pouring and open for continuity.

The gap holder 40 is useful for quality control by connecting the first formwork panel 20 and the second formwork panel 30 so that they are spaced apart and maintaining the wall thickness constant.

All products used in the field of temporary material can be used for the gap holder 40 , and in the case of the second formwork panel 30 , it is preferable that both the fixed part 31 and the variable part 33 are applied.

1 and 6, the carrier 50 is to transport the formwork assembly 10 along the direction of the wall, and the formwork connection part 51 and the rail 60 connected to the formwork assembly 10 are moved. Let the trolley|bogie part 52 connected as possible as a structure.

The formwork connection part 51 consists of, for example, two horizontal parts fixed to the upper and lower sides of the side surface of the first formwork panel 20 (welding, pins, bolts and nuts, etc.), respectively, and a vertical part connecting the horizontal parts.

The formwork connection part 51 is preferably configured to be adjustable in length, and the position of the rail 60 and the position of the bulkhead may change depending on the conditions of the construction site. At this time, the length of the formwork connection part 51 may be changed. Through the change, it can be securely fixed to the formwork assembly 10 while being stably mounted on the rail 60 through only one type of carrier 50 .

The length adjustment method of the formwork connection part 51 is possible, such as a turnbuckle type, and various methods are possible and a detailed description is omitted because it is possible to freely implement.

The bogie part 52 is detachably assembled through fasteners (bolts and nuts, etc.) on the horizontal part of the lower side of the formwork connection part 51 and includes a roller part movably mounted on the rail 60 .

According to the prefabricated configuration of the formwork connection part 51 and the bogie part 52, it is possible to select and maintain only the parts that need replacement, and if there is a change in the interval of the rail 60, only the bogie part 52 is used through replacement. There are possible advantages to this.

The rail 60 is installed along the construction direction of the wall on the road surface of the tunnel 1 and is preferably a pair.

A support 70 for supporting the second formwork panel 30 may be included when the bulkhead separation type evacuation passage is constructed using the formwork assembly 10 . The support 70 is preferably of a length adjustment type (bolt type, etc.), and both sides in the longitudinal direction are respectively supported on the side surface of the second formwork panel 30 and the inner wall surface of the tunnel 1 to support the tunnel 1 Prevents the second formwork panel 30 from being pushed as a base.

The support 70 is preferably used so that one side is fixed to the side surface of the second formwork panel 30 and supported on the inner wall of the tunnel 1 through length adjustment of the other side.

The construction method of the bulkhead-separated type evacuation path using the variable system formwork capable of constructing the bulkhead-separated type evacuation path according to the present invention is as follows.

Step 1. rail installation.

A rail 60 is installed on the road surface of the tunnel 1 .

Step 2. Variable system formwork mounting.

The carrier and the formwork assembly of the variable system formwork 100 are assembled with each other, and the bogie 52 of the carrier 50 is mounted on the rail 60 to be mounted.

In this case, the formwork assembly 10 is positioned at the location of the bulkhead for the construction of the bulkhead separation type evacuation passage.

When the ceiling type bulkhead is constructed in a state in which the first and second formwork panels 20 and 30 are stored in a straight line parallel to each other, the second formwork panel 30 is converted to the ceiling type as shown in FIG. placed in the direction

That is, the first formwork panel 20 is arranged in a vertical straight line, and the second formwork panel 30 has a fixing part 31 parallel to the first formwork panel 20 and a haunchi forming part 32 on the upper part. While there is a variable portion 33 is arranged in the transverse direction next to the heonchi forming portion (32).

When the support 70 is applied, the inner second formwork panel 30 is supported on the inner wall of the tunnel 1 through the support 70 .

Step 3. Concrete pouring (see Fig. 7).

Concrete is poured into the first and second formwork panels 20 and 30. Concrete is poured between the fixed part 31 of the first formwork panel 20 and the second formwork panel 30, next to the haunchi forming part 32, on the variable part 33 of the second formwork panel 30, that is, It is poured in the form of a ceiling-type bulkhead.

Step 4. curing.

When a certain time elapses, the concrete poured into the first and second formwork panels 20 and 30 is cured. This completes one section of the bulkhead.

Step 5. move.

After the concrete is cured, the carrier 50 is moved forward to transport the formwork assembly 10 to the next pouring position.

Thereafter, the ceiling-type bulkhead 2 is constructed in the tunnel 1 through the repetition of concrete pouring - curing - movement described above.

When the ceiling-type bulkhead 2 is constructed in the above way, since the ceiling and the inner wall of the tunnel 1 are not connected, water leakage may occur in this part and the ceiling may sag or crack. To solve this, this part It is possible to apply a water-repellent material or install a web bar.

On the other hand, when constructing a straight bulkhead, as shown in FIG. 2 , the first and second formwork panels 20 and 30 are installed in a straight line parallel to each other, and concrete is poured into the first and second formwork panels 20 and 30 for construction. can

As described above, in the present invention, both the straight bulkhead and the ceiling type bulkhead can be constructed through only the shape change of the second formwork panel 30 .

1: tunnel, 2: bulkhead
3: Bulkhead separation type evacuation route
10: formwork assembly;
20, 30: first and second formwork panels, 31: fixed part
32: haunchi forming part, 33: variable part
34: storage frame, 35: pin
36: stopper,
40: gap holder, 50: carrier
60: rail,

Claims (7)

First and second formwork panels 20 and 30 spaced apart from each other with a space in which concrete is poured;
and a gap holder 40 for fixing the first and second formwork panels in a state of maintaining the gap,
The first formwork panel is made in a straight line,
The second formwork panel includes a straight fixed part 31 parallel to the first formwork panel, and a variable part 33 connected to the fixed part to maintain a straight line on the same line as the fixed part or to be arranged at a different angle. including,
In the second formwork panel, the fixed part and the variable part are arranged in a line along the vertical direction to construct a straight bulkhead together with the first formwork panel, or the variable part is arranged in a direction perpendicular to the fixed part to form a ceiling bulkhead construct,
The second formwork panel includes a triangular haunchi forming part forming a haunchi part of a partition wall separation type evacuation evacuation passage,
The haunchi forming part is slidably accommodated in the housing frame formed in the variable part, and is a variable system formwork capable of construction of a partition wall separation type evacuation passage, characterized in that it is drawn out from the housing frame and used. delete delete delete The variable type capable of constructing an evacuation evacuation passage according to claim 1, wherein both sides in the longitudinal direction are respectively supported on the inner wall surface of the second formwork panel and the tunnel and include supports for supporting the second formwork panel. system formwork. The method according to claim 1, Rails installed along the longitudinal direction on the road surface of the tunnel; Construction of a bulkhead separation type evacuation escape passage, characterized in that it includes a carrier that moves along the rail and is connected to the first formwork panel to transport the first and second formwork panels in the construction direction of the partition wall separation type evacuation passageway Possible deformable system formwork. A method of constructing a bulkhead using a variable system formwork capable of constructing a bulkhead separation type evacuation passage according to claim 1, comprising:
A first step of installing a rail in the tunnel;
a second step of mounting a carrier and a form assembly of a variable system form capable of constructing the bulkhead separation type evacuation passage on the rail installed in the first step;
a third step of pouring concrete into the formwork assembly;
a fourth step of curing the concrete poured in the third step;
A fifth step of moving the carrier and formwork assembly along the rail after curing the concrete,
The bulkhead is constructed by repeating the steps 3 to 5,
In the second step, the second formwork panel of the form assembly is converted to a straight or ceiling type according to the shape of the bulkhead to construct a straight bulkhead or a ceiling type bulkhead. Construction method of bulkhead using formwork.

Images