KR101072401B1 - Constructing lining simultaneously with excavating tunnel, and lining constructing method using thereof - Google Patents

Abstract

The present invention relates to a lining construction device and a lining construction method using the same, which can be parallel to the tunnel excavation work, in particular installed in the excavated tunnel, the frame portion is installed in the space to enable the movement of construction equipment therein; A moving part which moves the frame part along the base parts installed at both sides of the bottom of the excavated tunnel, and is precast lining-mounted; And a construction unit for constructing the precast lining by moving the precast lining mounted on the moving unit to the excavation surface of the tunnel.
According to the present invention as described above, after loading the precast lining on the outside of the frame portion to move the frame portion along the tunnel and then construct the precast lining on the excavation surface using the loading portion at the corresponding position, the excavation equipment through the inside of the frame portion By enabling the movement of the excavation work and lining construction work proceeds at the same time can be relatively shortened construction period.

Description

CONSTRUCTING LINING SIMULTANEOUSLY WITH EXCAVATING TUNNEL, AND LINING CONSTRUCTING METHOD USING THEREOF}

The present invention relates to a lining construction device and a lining construction method using the same that can be parallel to the tunnel excavation work, and in detail, after loading the precast lining on the outside of the frame portion moving the frame portion along the tunnel and then the loading portion in the corresponding position The present invention relates to a lining construction device and a lining construction method using parallel tunnel excavation work for constructing a precast lining on an excavation surface and allowing movement of the excavation equipment through the inside of the frame part.

In general, in the construction of a tunnel, after the ground is excavated, reinforcing shotcrete is sprayed on the excavation surface to construct the primary lining. When the excavation ground is stabilized after the primary lining by shotcrete is completed, nonwoven fabric, waterproof sheet, etc. are attached to the outer surface of the primary lining, and after the lining formwork is installed, concrete is injected into the formwork and cured. Secondary lining made of concrete with a thickness of 30 to 40 cm.

However, in the case of constructing secondary lining using the site-pouring concrete in this way, the concrete must be transported to the tunnel construction site in order to inject and place the concrete. The tunnel construction sites are mostly located in the mountainous area, After producing concrete, it takes considerable time to transfer it to the tunnel construction site using ready-mixed concrete vehicles. Therefore, the quality of concrete is deteriorated and it is difficult to maintain uniform quality of concrete.

In addition, in order to pour concrete for secondary lining in the field, since the formwork must be installed, it takes much time, effort, and cost to transport, assemble, and manage the formwork, as well as to secure time for curing concrete. There is a limit that the delay and the time required for the entire tunnel construction increases.

In particular, when the tunnel is excavated more than the tunnel cross section or over excavation occurs, a large amount of concrete must be used to fill it, so the amount of concrete used for the secondary lining is increased and accordingly Problems such as waste of material and increase of material cost occur.

It was developed to overcome various problems and limitations of the prior art of constructing the tunnel lining by the cast-in-place concrete, a method of sequentially building a precast lining pre-fabricated in the factory.

However, the method of constructing such precast lining is constructed while the precast lining manufactured in the form of segment is constructed while moving large equipment such as a forklift truck in the excavation space, so that interference with equipment necessary for excavation of the tunnel (such as a bucket transport vehicle) occurs. Therefore, the excavation and lining construction can not be carried out at the same time, thereby increasing the construction period.

The present invention is to solve the above problems, and after loading the precast lining on the outside of the frame portion, the frame portion is moved along the tunnel and the precast lining on the excavation surface using the loading portion at the corresponding position, the frame Lining construction device capable of parallel drilling excavation work to reduce the construction period and reduce construction cost by allowing excavation work and lining construction work to proceed at the same time by allowing the movement of the excavation equipment through the inside of the part and using the same The purpose is to provide a lining construction method.

Features of the present invention for achieving the above object,

A frame part installed in the excavated tunnel and having a space part installed therein to allow movement of construction equipment therein; A moving part which moves the frame part along the base parts installed at both sides of the bottom of the excavated tunnel, and is precast lining-mounted; And a construction unit for constructing the precast lining by moving the precast lining mounted on the moving unit to the excavation surface of the tunnel.

Here, the frame portion is spaced to correspond to each other, the vertical frame is provided with a plurality in the longitudinal direction of the tunnel; A horizontal frame interconnecting the vertical frame and a neighboring vertical frame to form the space portion; And a longitudinal frame interconnecting the upper and lower ends of the vertical frame and the upper and lower ends of neighboring vertical frames.

Here, the vertical frame is provided with a fixed jack on the bottom so as to be fixed to the bottom surface of the tunnel.

Here, the moving unit is provided in each of the base portion, the first rail extending to the outside of the tunnel; A first frame having a plurality of first wheels moved along the first rail on a bottom surface thereof, the first frame being installed at a right angle from a lower end of a vertical frame of the frame part; A second rail installed on an upper surface of the first frame; A moving plate having a plurality of second wheels moved along the second rail at a bottom thereof; And a first length variable means installed between one side of the movable plate and the vertical frame of the frame part to move the movable plate to the left and right.

Here, again, the first wheel of the first frame is rotated by the power means.

Here, the shaft portion and the lower boom is fixedly coupled on the upper surface of the moving plate of the moving part; A lower boom hinged to the lower end, and an upper boom fixed to the precast lining to move the precast lining to build on the excavation surface of the tunnel; Second length variable means coupled by a hinge between the lower boom and the upper boom; And a third length varying means hingedly coupled to a lower end of an upper part of a horizontal frame of the frame part, and an upper end thereof coupled to the precast lining to move the precast lining outward.

Here, the precast lining is formed smaller than the size of the half-section of the tunnel so as to move after passing through the moving portion on the tunnel.

Here, the precast lining is constructed on both sides of the excavation surface, and then casts the lining between them or builds a separately manufactured precast upper lining.

Here, when the precast lining is placed in the field, the steel pipes are installed between them to fix the precast lining and then reinforce the reinforcing bar, install the formwork, and then cast concrete.

According to another aspect of the present invention,

A lining construction method using a lining construction apparatus capable of parallel tunnel excavation work, comprising: a first step of excavating a tunnel; A second step of installing foundations on both sides of the bottom of the excavated tunnel when the excavation proceeds to the reference position; A third step of installing a first rail of a moving part on an upper surface of the foundation part, and extending the first rail to an outer side of the tunnel; A fourth step of installing a frame portion on the first rail that is outside the tunnel, placing a precast lining on the frame portion, and then moving the frame portion to a construction position; A fifth step of constructing the precast lining on the excavation surface of the tunnel through a construction unit; A sixth step of constructing the precast linings on both sides of the excavation surface, and then placing the upper linings between them or constructing a separately manufactured precast upper lining; A seventh step of discharging the frame unit out of the tunnel; And repeating the first to seventh steps to build the precast lining with excavation.

According to the lining construction device and the lining construction method using the same according to the present invention the tunnel excavation work is configured as described above, after loading the precast lining on the outside of the frame portion to move the frame portion along the tunnel and then the loading portion at the corresponding position By using the precast lining on the excavation surface, and by allowing the movement of the excavation equipment through the inside of the frame portion, there is an advantage that can be relatively shortened construction period by performing the excavation work and lining construction work at the same time.

1 is a perspective view showing the configuration of a lining construction device capable of parallel tunnel excavation operation according to the present invention.
Figure 2 is a side view showing the configuration of a lining construction device capable of parallel tunnel excavation operation according to the present invention.
3 is a front view showing a state in which a lining construction device capable of performing a tunnel excavation work according to the present invention is installed in a tunnel.
4A and 4B are front views showing a state in which a precast lining is installed by a lining construction device capable of parallel tunneling work according to the present invention.
5A to 5G are process explanatory diagrams for explaining a lining construction method using a lining construction apparatus capable of parallel tunnel excavation work according to the present invention.

Hereinafter, with reference to the accompanying drawings the configuration of the lining construction device capable of parallel tunnel excavation work according to the present invention will be described in detail.

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 subject matter of the present invention, the detailed description thereof will be omitted. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

1 is a perspective view showing the configuration of a lining construction device capable of parallel tunnel excavation work according to the present invention, Figure 2 is a side view showing the configuration of a lining construction device capable of parallel tunnel excavation work according to the present invention, Figure 3 Is a front view showing a state in which a lining construction device capable of parallel tunnel excavation work according to the present invention is installed in the tunnel, Figures 4a and 4b is a precast lining by the lining construction device capable of parallel tunnel excavation work according to the present invention This is a front view showing the installed state.

1 to 4B, the lining construction device 1 capable of performing the tunnel excavation work according to the present invention includes a frame portion 100, a moving portion 200, and a construction portion 300. As shown in FIG.

First, the frame part 100 includes a vertical frame 110, a horizontal frame 120, and a longitudinal frame 130.

The vertical frame 110 is made of H, I-shaped steel spaced apart to correspond to each other, a plurality are installed in the longitudinal direction of the tunnel (T). Here, the vertical frame 110 is preferably provided with a fixed jack 111 on the bottom surface so as to be fixed to the bottom surface (I) of the tunnel (T). In this case, the vertical frame 110 may be provided with wheels (not shown) according to selection, and when the wheels are installed, rails (not shown) may also be installed on the bottom surface I of the tunnel T. Do.

The horizontal frame 120 is made of H, I-shaped steel to interconnect the top of the vertical frame 110 and the adjacent vertical frame 110 to form a space portion 140 to move the equipment or vehicle.

The longitudinal frame 130 is made of H and I-beams to interconnect the upper and lower ends of the vertical frame 110 and the upper and lower ends of the neighboring vertical frame 110.

The moving part 200 includes a first rail 210, a first frame 220, a second rail 230, a moving plate 240, and a first length varying means 250. .

The first rail 210 is installed on the upper surface of the foundation portion B along the foundation portion B installed on both sides of the lower end of the tunnel T excavated.

The first frame 220 is made of H, I-shaped steel is provided with a plurality of first wheels 221 to be moved along the first rail 210 on the bottom, at the bottom of the vertical frame 110 of the frame portion 100 It is installed at a right angle and a precast lining (PCL) is loaded on the top surface. Here, it is preferable that the step 223 is installed at the top end of the first frame 220 to prevent the moving plate 240 to be described later from being separated.

The second rail 230 is installed on the upper surface of the first frame 220.

The moving plate 240 includes a plurality of second wheels 241 that are moved along the second rail 230 at a bottom thereof, and pushes the precast lining PCL outward on the second rail 230.

The first variable length means 250 is installed between one side of the moving plate 240 and the vertical frame 110 of the frame part 100 to move the moving plate 240 to the left and right. Here, the first variable length means 250 is applied to the hydraulic jack, hydrojack, hydraulic cylinder and the like.

In addition, the construction part 300 includes a lower boom 310, an upper boom 320, a second length variable means 330, and a third length variable means 340.

The lower boom 310 is fixedly coupled in an inclined form on the upper surface of the moving plate 240 of the moving part 200.

The upper boom 320 is coupled to the lower boom 310 and the hinge (H), the upper end is fixed to the precast lining (PCL) to move the precast lining (PCL) to build the excavation surface of the tunnel (T) do.

The second variable length means 330 is coupled between the lower boom 310 and the upper boom 320 by hinges H to move the upper boom 320 in the inclined direction from the lower boom 310. . Here, the second variable length means 330 is applied to the hydraulic jack, hydrojack, hydraulic cylinder and the like.

The third variable length means 340 is hinged (H) at the lower end of the upper portion of the horizontal frame 120 of the frame portion 100, the upper end is combined with the precast lining (PCL) to form a precast lining (PCL) Move it outward. Here, the third variable length means 340 is applied to the hydraulic jack, hydrojack, hydraulic cylinder and the like.

On the other hand, the precast lining (PCL) applied to the lining construction device 1 that can be parallel to the tunnel excavation work according to the present invention is mounted on the moving part 200 on the tunnel (T) half of the tunnel (T) Formed smaller than the cross-sectional size, it is preferable that a separate plate (not shown) is fixed to the inner side so that the upper boom 320 is connectable, and after being built on both sides of the excavation surface as shown in Figure 4a Place the upper lining (L) in between, or build a separately manufactured precast upper lining (L) as shown in Figure 4b. At this time, when the lining is cast in place, the steel pipe 400 is installed between them to fix the precast lining (PCL) and then rebar (not shown), install the formwork (not shown), and then cast concrete to cure. do.

Hereinafter, a lining construction method using a lining construction apparatus capable of parallel drilling excavation operation according to the present invention will be described in detail with reference to the accompanying drawings.

5A to 5G are process explanatory diagrams for explaining a lining construction method using a lining construction apparatus capable of parallel tunnel excavation work according to the present invention.

First, as shown in FIG. 5A, the tunnel T is excavated using the excavation equipment (S100).

Then, as shown in Figure 5b when the excavation proceeds to the reference position (precast lining can be built position) install the base portion (B) on both sides of the bottom of the excavated tunnel (T) (S110).

Then, as shown in FIG. 5c, the first rail 210 of the moving part 200 is installed on the upper surface of the base part B (S120).

When the installation of the first rail 210 is completed, as shown in FIG. 5D, the frame unit 100 is assembled and installed on the outer first rail 210 of the tunnel T, and the frame unit 100 is free. After passing through the cast lining (PCL), and moves to the building position (S130). At this time, the upper boom 320 of the precast lining (PCL) and the construction unit 300 are interconnected. In addition, the first wheel 221 of the first frame 220 is preferably rotated by a power means (not shown), tow the first wheel 221 by a separate towing equipment to the first rail 210 You can also move it on. On the other hand, when the installation of the frame unit 100 is completed, it is possible to move the equipment or vehicle through the space unit 140.

Subsequently, as shown in FIG. 5E, the second length varying means 330 is operated to raise and lower the precast lining PCL in the second frame 230 using the upper boom 320, and the first length varying means. By operating the 250 to move the precast lining (PCL) to the excavation surface of the tunnel (T) with a moving plate 240, the upper boom 320 is lowered to move the precast lining (PCL) of the tunnel (T) Construct on the excavation surface (S140).

Then, as shown in FIG. 5F, precast linings PCL are respectively constructed on both sides of the excavation surface, and then the upper linings L are placed between them, or precast upper linings L are separately manufactured. (S150).

When the construction of the upper lining (L) is completed, as shown in Figure 5g to discharge the frame portion 100 to the outside of the tunnel (T) (S160).

Then, the first to seventh steps are repeated to build a precast lining (PCL) together with the excavation.

As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

100: frame portion 200: moving portion
300: building part

Claims (10)

Installed in the excavated tunnel, the space is installed inside the space to allow the movement of the construction equipment, spaced to correspond to each other, a plurality of vertical frames are installed in the longitudinal direction of the tunnel, and the vertical frame to form the space and A frame unit including a horizontal frame interconnecting adjacent vertical frames, and a vertical frame interconnecting upper and lower ends of the vertical frame and upper and lower ends of the neighboring vertical frames;
It is installed in each of the base portion is installed on both sides of the bottom of the excavated tunnel, the first rail extending to the outside of the tunnel, and a plurality of first wheels are moved along the first rail on the bottom, the vertical frame of the frame portion The first frame is installed at a right angle at the lower end of the precast lining is mounted on the upper surface, the second rail is installed on the upper surface of the first frame, and a plurality of second wheels moved along the second rail on the bottom surface A moving part provided on a moving plate provided on the upper surface of the moving plate, the moving part being provided at a position corresponding to a vertical frame among the frame parts and configured to have a first length variable means for moving the moving plate left and right; And
Lining construction device capable of parallel tunnel excavation work characterized in that it comprises a construction unit for constructing the precast lining by moving the precast lining mounted on the moving part to the excavation surface of the tunnel. delete The method of claim 1,
The vertical frame,
Lining construction device capable of parallel operation of the tunnel excavation work, characterized in that the fixing jack is provided on the bottom surface to be fixed to the bottom surface of the tunnel. delete The method of claim 1,
The first wheel of the first frame,
Lining construction device capable of parallel operation of the tunnel excavation work, characterized in that rotated by the power means. The method of claim 1,
The building unit,
A lower boom fixedly coupled to an upper surface of the movable plate of the movable part;
A lower boom hinged to the lower end, and an upper boom fixed to the precast lining to move the precast lining to build on the excavation surface of the tunnel;
Second length variable means coupled by a hinge between the lower boom and the upper boom; And
The lower end is hinged at the upper part of the horizontal frame of the frame portion, and the upper end is coupled to the precast lining, and the tunnel length can be parallel to the excavation work, characterized in that made of a variable length means for moving the precast lining outward. Lining construction device. The method of claim 1,
The precast lining,
Lining construction device that can be parallel to the tunnel excavation work, characterized in that formed smaller than the size of the half-section of the tunnel so as to move after mounting on the moving part on the tunnel. The method of claim 7, wherein
The precast lining,
Lining construction apparatus capable of parallel drilling excavation work, characterized in that after the construction on each side of the excavation surface, the lining is placed between them or the precast upper lining is manufactured separately. The method of claim 8,
The precast lining,
If the site is cast steel lining between them to fix the precast lining and reinforce the reinforcement, install the formwork and lining construction apparatus that can be parallel to the tunnel excavation work, characterized in that. In the lining construction method using a lining construction device capable of parallel to the tunnel excavation work of claim 1,
A first step of digging a tunnel;
A second step of installing foundations on both sides of the bottom of the excavated tunnel when the excavation proceeds to the reference position;
A third step of installing a first rail of a moving part on an upper surface of the foundation part, and extending the first rail to an outer side of the tunnel;
A fourth step of installing a frame portion on the first rail that is outside the tunnel, placing a precast lining on the frame portion, and then moving the frame portion to a construction position;
A fifth step of constructing the precast lining on the excavation surface of the tunnel through a construction unit;
A sixth step of constructing the precast linings on both sides of the excavation surface, and then placing the upper linings between them or constructing a separately manufactured precast upper lining;
A seventh step of discharging the frame unit out of the tunnel; And
A lining construction method using a lining construction device capable of parallel tunnel excavation work, characterized in that the construction of the precast lining with excavation by repeating the first to seventh step.

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