KR200317830Y1 - The structure for underground tunnel formation - Google Patents

Abstract

The present invention is to install the structure for tunnel formation in the ground without digging out the soil of tunnel excavation part in advance and to endure sufficiently stress in advance, and then to the structure installation structure for underground tunnel formation to form the underground tunnel by excavating the inside of the structure. About

It is possible to install underground tunnel structures more conveniently, quickly and accurately, and economically, and to build new tunneling method for stable tunnel excavation work because the structures are very solid structurally after installation. It aims to provide a safe and secure tunnel by completely eliminating work risks and to recycle economically, eco-friendly and durable tunnels by recycling less manpower, equipment and materials. .

The present invention for achieving the above object,

Forcibly press large diameter pipes with large diameters horizontally to form a round or square shape depending on the shape of the construction surface.

In the left part of the forced large-diameter steel pipes left side or lower part to withstand the earth pressure, the incision is cut and the incision parts are connected by welding or bolt using the upper and lower plates for earth pressure bearing,

The left and right fixing plates are formed in the middle of the upper surface of the upper plate, and the cut ends of both steel pipes adjacent to the left and right sides thereof are welded to prevent deformation such as hesitation or distortion of the steel pipe by earth pressure.

Reinforcing bars are installed between the upper plate and the lower plate,

Regarding the structure of the underground tunnel forming structure formed by installing the formwork according to the size of the tunnel forming part in the steel pipe, reinforced concrete is injected by reinforcement, and when the curing is completed, the tunnel is excavated after cutting the tunnel. Will be

Here, the reinforcement frame is formed of an arch or a horizontal plate as well as forming the reinforcement frame to have the same outer diameter as the inner diameter of the steel pipe from the upper plate of the same side from the upper plate formed integrally in the center of the upper surface of the left and right fixing plate for preventing steel pipe cover Install the reinforcement frames long to support the bottom of the field and install them to support the reinforcement frames vertically on the bottom of both sides.

Between the upper plate and the lower plate is characterized in that the lower side of the reinforcing table to be placed in the socket formed on the upper surface of the lower plate.

Description

Structure for underground tunnel formation {The structure for underground tunnel formation}

The present invention is to install the structure for tunnel formation in the ground without digging out the soil of tunnel excavation part in advance and to endure sufficiently stress in advance, and then to the structure installation structure for underground tunnel formation to form the underground tunnel by excavating the inside of the structure. In more detail, the underground tunnel structure can be installed economically, safely and accurately, and the structure is very solid structurally after installation and even after installation, so that tunneling work can be stably performed. After the tunnel is completed, its life is long.

In general, in order to form a tunnel, a tunnel structure must be installed to withstand the stress generated from the outside of the tunnel, and thus, an embodiment of a conventional tunnel structure installation method for installing such a tunnel structure will be described below. .

First, as shown in FIG. 1, a large diameter steel pipe 10 is press-fitted into a tunnel-like shape at a predetermined interval in the ground to grout the inside of the steel pipe 10 and the outer surface of the steel pipe 10, and then the inner tunnel surface of the steel pipe 10. Excavation to a certain depth and then install the jibo ball 110 by connecting a plurality of jibo ball 110 with a plurality of bolts throughout the inside of the structure and then poured concrete (111) to the inside to complete the construction work Repeatedly repeated several times, the underground tunnel formation structure was installed, and the conventional method according to one embodiment as well as the other tunnel structure installation methods are almost all common tunnel drilling in advance to a certain depth in advance How to complete the process and repeat the process of installing underground tunnel structures,

First of all, there was a hassle of having to construct a temporary facility every time because the construction of a temporary facility should be carried out before the tunnel excavation, and there was a problem of a safety accident.

Secondly, in order to proceed with the temporary construction, first, after the tunnel excavation, several jiborongs 110 should be connected by installing a plurality of bolts, which are also very demanding and difficult, requiring a lot of manpower and a long process, which is uneconomical. There was a problem that the construction work was very slow due to the work of the temporary facility.

Thirdly, if the excavation is too deep during the preceding excavation work, if the ground is weak, it is very likely that the ground or rock will collapse or fall during the excavation construction as well as during the temporary construction work. Since the excavation was to be preceded only by the operation, there was a problem that the work was not related.

As a result, according to the conventional tunnel structure installation method as described above, after installing the temporary construction work after the tunnel excavation work in advance, the installed temporary facilities interfere with the air, which is long, dangerous, and at the minimum unit when installing the tunnel structure. As it is a repetitive method, it requires a lot of manpower, equipment and materials, which makes the work inefficient and inexpensive, and because of the weakness of the endurance of the tunnel structure, it was not always able to escape from the risk of tunnel collapse and safety accidents. .

Therefore, there is no risk of work by excluding the defects in tunnel excavation by the above methods, and only underground excavation work can be done at a time without excavating the ground so that work can be performed efficiently and consistently. A method for installing a structure for forming a tunnel was devised. As shown in FIG. 2, a large diameter steel pipe of 1.5 m to 2 m was press-fitted into the ground along the tunnel construction plan, and then the steel pipe 10 and the steel pipe 10 were inserted. The small diameter pipe 130 is installed horizontally in parallel with the steel pipe 10, and the upper part over the both steel pipes 10 is wrapped with a cement, silicic acid, polyurethane or the like, or wrapped with a freezing method to disintegrate the soil. After forming the prevention grouting portion 70, by cutting the curved portion of the opposite length of the side of the steel pipe to form an incision open to each other and the upper and lower ends of the cut incision to the iron plate (1) 20) after the welding connection to install the rape column (strut) (140) to support, by filling the lower side of the inside of the steel pipe with styropol to install the structure for underground tunnel formation by placing concrete in the remaining space. .

However, in such a method, first, all long diameter pipes must be forcedly installed between the steel pipes and the steel pipes. Therefore, when the length is long, the pipes and the adjustment device of the pipes are lacking, which leads to lack of directivity and straightness. Difficult, wider width between steel and steel pipes, small diameter steel pipes are not possible to prevent earth and sand, it takes a lot of material and construction cost, and the straightness is uncertain, such as the direction is changed when there is a stone or the soil is different, amber stone or more rock When scattered, the construction is very difficult, and when the filling method is not combined with the steel pipe, it becomes vulnerable to corrosion, making it difficult to prevent groundwater and earth leakage, and it is uneconomical when filling the pipe.

Secondly, when cutting the curved portions of a predetermined length of the sides of the steel pipes (10) to form the mutually open incisions, there is a fear of collapse by the earth pressure, and the upper and lower ends of the incisions are cut out. After the welding connection to 120), the rape column (strut) (140) should be installed. At this time, the earth pressure is transferred to the lower steel plate, so that the work is complicated by installing the reinforcement plate separately, and additional steel plate material is required, so the material cost is excessively increased. It was uneconomical and weak in external stress, structurally unstable in the absence of necessary measures.

Thirdly, in filling the styropol for formwork in the lower side of the steel pipe, the material cost is excessive, and if the construction volume is small, it is difficult to purchase Styropol, and the styropol must be processed or made to order according to the pipe, and the dimensions of the steel pipe Was different, it was inconvenient because you have to repurchase Schiropol according to the dimensions.

After completion of the construction, Styropol's wastes were contaminated with the environment and difficult to dispose of.

Fourth, the steel pipe inside is made of plain concrete, so it is weak to external stress, difficult to interpret structurally, and reinforcement method is required.

And another method has been devised, which is pressurized 1m ~ 2m large diameter steel pipe in the ground along the tunnel construction plan as shown in Figure 3, and then between the steel pipe 10 and the steel pipe (10) Install a small diameter pipe 130 in parallel with the steel pipe 10, and wrap or freeze the upper portion of the small diameter pipe 130 and the both steel pipes 10 with normal cement, silicic acid, and polyurethane. After forming a grouting part 70 to prevent the earth and sand collapse by wrapping the method, and forming a cutout in the side of the steel pipe as much as the cross-sectional diameter of the support hole and inserting the support hole therein, the gap between the support hole 110 and the incision between the steel pipes is formed. After welding, connecting the connection portion 115 of each support hole, and repeating the method of placing concrete in the steel pipe, excavating the soil inside the structure and the lower side of the steel pipe to the upper plate 120 Connected after welding is a method of pre-built an underground structure with cast-in-place concrete construction method according to a conventional die.

However, in such a method, first of all, a long diameter pipe between the steel pipes and the steel pipes must be installed in a circular form. Therefore, it is difficult to manufacture the steel pipes in a circular form, the manufacturing cost is excessive, and the length is difficult to install. It costs a lot of materials and construction costs, and when there is no additional filling method in the steel pipe, it becomes vulnerable to corrosion, and there is no fixed connecting pin between the steel pipe and the steel pipe, so the steel pipe can be moved by earth pressure, and the structure moves, which causes a critical problem.

Secondly, the incision is formed on the side of the steel pipe as much as the cross-sectional diameter size of the circular ring, and the support hole 110 is inserted therein, but the length of the steel pipe is long, so that it is impossible to install. do.

In addition, after welding the gap of the cutout between the support hole 110 and the steel pipe, the work to connect and install the connection portion 115 of each support hole is very complicated, requires a separate connection process and small diameter steel pipe filling and excessive material costs The construction is difficult.

Third, concrete should be poured in the entire inside of the large-diameter steel pipe 10, and this also costs excessively, and it is difficult to place concrete in the small-diameter pipe, so that structural analysis is not possible due to corrosion and transverse long pipes between the steel pipe and the steel pipe. Difficult to install

Fourth, the work of interconnecting and welding the lower side of the steel pipes 10 to the steel plate 120 should be welded to the ceiling after excavation. Since 120 is required, the material cost is excessive.

Fifthly, the steel pipe (10) inside the plain concrete, so weak to the external stress can not be interpreted structurally.

The present invention has been made in view of the above-mentioned problems in the prior art, and the tunnel-forming structure is first installed in the ground without digging out the earth and sand of the tunnel excavation portion in advance so that it is sufficiently resistant to stress in advance, and then excavates the inside of the structure. Using the method of installing the underground tunnel forming structure to form the underground tunnel,

It is possible to install underground tunnel structures more conveniently, quickly and accurately, and economically, and to build new tunneling method for stable tunnel excavation work because the structures are very solid structurally after installation. It aims to provide a safe and secure tunnel by completely eliminating work risks and to recycle economically, eco-friendly and durable tunnels by recycling less manpower, equipment and materials. .

1 is an embodiment of a conventional design.

Figure 2 is another embodiment of the prior art.

Figure 3 is another embodiment of the prior art design.

Figure 4a, 4b, 4c is an embodiment of the present invention,

Figure 4a is a state diagram constructed in a circular shape.

Figure 4b is a state diagram constructed in a square.

Figure 4c is a state partially cut in the steel pipe during construction.

Figure 5 is a state connected the reinforcement frame to the upper plate to the arch as the present design.

Figure 6 is a state connected to the reinforcement frame horizontally between the upper plate as the present design.

Figure 7a, 7b is a state diagram in which the reinforcement frame is connected horizontally long on the bottom of the upper plate as the present invention and another reinforcement frame is installed vertically on both sides thereof,

Figure 7a is a front view showing the installation state.

Figure 7b is a side view showing a partially cut state of the steel pipe during installation.

8 is an installation state of the reinforcement using a socket as the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

10: steel pipe 20: reinforcement frame

40: earth prevention plate 60: concrete

70: grouting part 300: left, right fixed plate

310: upper plate 320: lower plate

400: reinforcement table 500: socket

The present invention for achieving the above object is to make a large or large diameter large diameter steel pipe 10 as shown in the accompanying drawings Figure 4a to Figure 4c to form a round or square depending on the construction surface of the tunnel construction site Forcibly push in horizontally,

Digging soil between the steel pipes 10, and then connecting the ground prevention plate 40 by sequentially connecting and grout to form a grouting portion 70,

Part of the forcedly pressurized large-diameter steel pipes (10) in the left side or lower part to withstand the earth pressure to cut and cut the incision portion between the earth pressure bearing, upper and lower plates 310, 320 by welding or bolt Connect it,

The left and right fixing plate 300 is formed in the middle of the upper surface of the upper plate 310, and the cut ends of both steel pipes 10 adjacent to the left and right sides thereof are welded to each other so that the steel pipe 10 does not hesitate by earth pressure. To prevent distortions such as crushing,

Between the upper plate 310 and the lower plate 320 is installed a reinforcing rod 400,

The inner part of the steel pipe 10 is installed in accordance with the size of the tunnel forming part 80 and then reinforced to inject concrete 60, and after curing is completed, the part protruding toward the tunnel side of the steel pipe 10 after excavating the tunnel By disassembling

At this time, as shown in FIG. 4c, the part 11 left partially of the steel pipe 10 is sequentially cut after installing the reinforcing bar 400 between the upper and lower plates 310 and 320 and the upper and lower plates 310. Install 320.

Wherein the present invention is as shown in Figure 5 attached to the upper plate 310 of the same as the other side from the upper plate 310 formed integrally at the center of the upper surface of the steel pipe surface preventing left, right fixing plate 300 ( 20) is formed in an arcuate shape to have the same outer diameter as the inner diameter of the steel pipe (10),

As shown in FIG. 6, the reinforcement frame 20 is horizontally moved from the upper plate 310 formed at the center of the upper surface to the left and right fixing plates 300 integrally formed at the center of the upper surface thereof to the same upper plate 310 on the other side. Of course, to form

7a is a reinforcement frame to the other upper plate 310 which is the same from the upper plate 310 which is integrally formed at the center of the upper surface of the steel pipe mark prevention left and right fixing plates 300 as the cut portions as shown in FIG. 20),

By reinforcing and installing the reinforcement frame 20 long to support the bottom of the upper plate 310 and installed to support the reinforcement frame 20 vertically on the bottom of both sides,

All of the above-described installation structure is reinforced to withstand the earth pressure, so that even if a relatively large earth pressure occurs, the steel pipe 10 is prevented from being deformed or crushed.

At this time, the partially remaining portion 11 of the steel pipe 10 is first cut after the reinforcement frame 20 is installed in the incision portion cut first and install the upper, lower plates 310, 320.

On the other hand, the subject innovation is a socket 500 seated on the upper side of the lower plate 320, the lower side of the reinforcing table 400 installed between the upper plate 310 and the lower plate 320 as shown in Figure 8 attached to the drawing. Configured to bind to,

It is easy to install the reinforcing table 400 and curing the concrete 60 inside the upper side of the steel pipe 10 may be made to be reused by disassembling the socket 500 at the same time when disassembling the lower side of the steel pipe 10. have

Referring to the construction process of the tunnel structure structure of the present invention configured as described above are as follows.

First, a large number of large diameter steel pipes 10 having a large diameter are forced to be horizontally pushed into the tunnel construction surface, but the steel pipe 10 is press-fitted to form a circle or a square according to the shape of the press construction surface, but the tip of the steel pipe 10 Digging soil through the earth prevention plate inlet (not shown) of the leading pipe (not shown) coupled to the ground prevention plate 40 by sequentially connecting and grouting to form a grouting portion (70).

Then, the left side or the bottom of the forced large-diameter steel pipes 10 are partially cut in order to withstand the earth pressure, and the upper and lower plates for the earth pressure bearing portion 310 and 320 are respectively cut off and cut. By using a welding or bolted connection to each other, the upper plate 310 is used to form the left, right fixing plate 300 integrally in the middle of the upper surface.

At this time, in the case of the upper plate 310 is installed by welding the cut ends of both steel pipes 10 adjacent to the left and right sides of the left and right fixing plate 300 integrally formed in the center of the upper surface of the upper plate 310, respectively. In this way, the cut end of the steel pipe 10 is stretched by earth pressure, and the deformation of the steel pipe 10 does not hesitate or crush is completely prevented.

When the installation of the upper and lower plates 310 and 320 is completed as described above, a reinforcing table 400 is placed between the upper and lower plates 310 and 320.

In this way, the left side or the bottom of the steel pipes 10 to partially endure to withstand the earth pressure, and the remaining portion of the left, partially left when the installation of the upper, lower plates 310, 320 and reinforcement 400 in the cut incision is completed Incision and complete the installation of the upper, lower plates 310, 320 and reinforcing table 400 in the same manner as described above.

Then, after installing the formwork 80 according to the size of the tunnel forming part inside the steel pipe (10), reinforcement and injecting concrete (60) to cure, and when curing is completed, after excavating the tunnel of the steel pipe (10) When disassembling the part projecting to the tunnel side is to complete the structure structure for underground tunnel formation of the present invention.

Here, in order to reinforce the steel pipe 10 to withstand the earth pressure presented in the present invention, it is possible to install a reinforcement frame 20 made of an H-beam, an I-beam, or a steel pipe, and such an installation structure of the reinforcement frame 20 is As shown in FIG. 5, the steel plate 10 prevents the reinforcement frame 20 from the upper plate 310 which is the same as the upper plate 310 of the other side from the upper plate 310 which is integrally formed at the center of the upper surface. Arched connection to have the same outer diameter,

Of course, as shown in Figure 6 to form the reinforcement frame 20 horizontally,

As shown in Figure 7a to Figure 7b to install the reinforcement frame 20 long to support the bottom of the upper plate 310 and to install the reinforcement frame (20) vertically to support the reinforcement frame 20 on both sides of the bottom ( 20) Install.

This reinforces the force that withstands the earth pressure acting on the outside of the steel pipe to prevent deformation such as hesitation or crushing of the steel pipe 10 even when a relatively large earth pressure is generated, as well as at a predetermined interval inside the steel pipe 10 as in the prior art. Installation is more convenient and faster than installing a ring-shaped reinforcement frame, resulting in shortened air and minimal waste of material.

Meanwhile, in the present invention, the reinforcing table 400 installed between the upper plate 310 and the lower plate 320 has a socket 500 having a lower side of the reinforcing table 400 formed on the upper surface of the lower plate 320 as shown in FIG. 8. In this case, it is easy to install the reinforcing rod 400, and the concrete structure is cured in the upper part of the formwork 80 inside the steel pipe 10, and then the lower side of the steel pipe 10 is disassembled. 10) The lower side and the socket 500 are disassembled at the same time.

Thus, the socket 500 can be reused over and over again, thus reducing waste of material.

The present invention as described above is to leave the side or bottom of the forced-in large diameter steel pipes partially to endure the earth pressure and to connect the upper and lower plates for the earth pressure bearing, respectively, the upper and lower sides of the incision section, respectively, In this case, the left and right fixing plates are integrally formed in the middle of the upper surface to weld the cut ends of both steel pipes adjacent to the left and right sides thereof, so that the cut ends of the steel pipe are stretched by earth pressure, and the steel pipe does not hesitate or crush. It is effective to completely prevent deformation such as losing.

Then, to reinforce the steel pipe to withstand the earth pressure, the reinforcement frame made of H-beam, I-beam, or steel pipe inside the steel pipe is the same as the other side from the upper plate in which the left and right fixing plates are formed integrally in the center of the upper surface. The reinforcement frame is formed in an arch shape to have the same outer diameter as the inner diameter of the steel pipe, or the reinforcement frame is formed horizontally, and the reinforcement frames are connected to each other so as to support the bottom of the upper plates. By installing the reinforcement frames in the way of supporting them vertically, it reinforces the force to withstand the earth pressure acting on the outside of the steel pipe to completely prevent deformation such as hesitation or crushing of the steel pipe even when relatively high earth pressure occurs. Like the ring shape at regular intervals inside the steel pipe Installation is easier than to install a reinforcing hureim faster and consequently has the effect that material as well as a waste of air is reduced a minimum.

In addition, by configuring the lower side of the reinforcing rod to be installed between the upper plate and the lower plate to be coupled to the socket seated on the upper surface of the lower plate, to facilitate the installation of the reinforcing rod, to cure the concrete structure inside the formwork upper side of the steel pipe and then Disassembling the lower side allows the socket to be separated at the same time, so that the socket can be reused, which reduces the waste of material.

As a result, the present invention can install underground tunnel structure more conveniently and quickly, and the construction is accurate and economical, and the structure is very solid structurally after installation and even after installation, so that the tunnel excavation work can be stable. Innovative design to build a tunnel that is economical, eco-friendly and robust by providing a new construction method that can completely eliminate work risks and form tunnels with confidence, and recycles less manpower, equipment and materials. to be.

Claims (5)

Forcibly press the large diameter steel pipe 10 having a large diameter horizontally to form a round or square according to the construction surface of the tunnel construction site, Digging soil between the steel pipes 10, and then connecting the ground prevention plate 40 by sequentially connecting and grout to form a grouting portion 70, Part of the forcedly pressurized large-diameter steel pipes (10) in the left side or lower part to withstand the earth pressure to cut and cut the incision portion between the earth pressure bearing, upper and lower plates 310, 320 by welding or bolt Connect it, The left and right fixing plates 300 are integrally formed in the middle of the upper surface of the upper plate 310, and the cut pipes of the two steel pipes 10 adjacent to the left and right sides thereof are welded to each other, and the steel pipe 10 is formed by earth pressure. Prevent deformation, such as hesitation or crushing, Between the upper plate 310 and the lower plate 320 is installed a reinforcing rod 400, The inner part of the steel pipe 10 is installed in accordance with the size of the tunnel forming part 80 and then reinforced to inject concrete 60, and after curing is completed, the part protruding toward the tunnel side of the steel pipe 10 after excavating the tunnel Underground tunnel formation structure structure, characterized in that made by decomposing. The method of claim 1, The left and right fixing plate 300 for preventing the steel pipe from the upper plate 310 integrally formed at the center of the upper surface from the upper plate 310 of the same side to the reinforcement frame 20 to have the same outer diameter as the inner diameter of the steel pipe 10 The structure of the underground tunnel formation, characterized in that formed by the arch shape, so as to reinforce the force to withstand the earth pressure to prevent deformation such as hesitation or crushing of the steel pipe 10 even if a relatively large earth pressure occurs. The method of claim 1, Left and right fixing plate 300 for preventing the steel pipe from forming the reinforcement frame 20 horizontally from the upper plate 310, which is the same as the other side from the upper plate 310 integrally formed in the center of the upper surface, to withstand the force to earth pressure Structure structure for forming an underground tunnel, characterized in that even if a relatively large earth pressure occurs by the reinforcement to prevent deformation such as hesitation or crushing of the steel pipe (10). The method of claim 1, The reinforcing frame 20 is connected to the upper plate 310 on the other side of the same from the upper plate 310 integrally formed at the center of the upper surface of the steel plate surface preventing left and right fixing plates 300, Reinforcement frame 20 is installed long to support the bottom of the upper plate 310 and installed to support the reinforcement frame 20 vertically on the bottom of both sides, by reinforcing the force to withstand earth pressure relatively large earth pressure Structural structure for underground tunnel formation, characterized in that the steel pipe 10 is made so as not to hesitate or crush even if it occurs. The method of claim 1, The reinforcing table 400 to be installed between the upper plate 310 and the lower plate 320, By configuring the lower side of the reinforcing table 400 to the socket 500 seated on the upper surface of the lower plate 320, The reinforcing bar 400 is easy to install and the concrete structure is cured inside the upper side of the steel pipe 10, and then the socket 500 is disassembled from the reinforcing bar 400 at the same time to disassemble the lower side of the steel pipe 10 so that it can be reused. Structure structure for underground tunnel formation, characterized in that consisting of.