KR102310086B1 - Waterproof steel plate installation method using waterproof steel plate propulsion set and method of forming underground composite structure using the same - Google Patents

Abstract

The present invention discloses a waterproof steel plate installation method for connecting a steel pipe using a special method, wherein a plurality of steel pipes press-fitted underground long along a tunnel construction surface are installed and connected by the waterproof steel plate to obtain waterproofness, a specially produced waterproof steel plate propulsion set, which is a waterproof steel plate having a press-fitting steel material such as an H-beam welded and installed long on a bottom surface, is placed above, a lower supporting plate, which is connected to the waterproof steel plate by an earth pressure support, is placed below the waterproof steel plate, the fore-end of the waterproof steel plate is allowed to protrude further than the fore-end of the lower supporting part, and right and left side walls are installed and connected with a predetermined length to be inclined downward from the fore-end of the waterproof steel plate to the fore-end of the lower supporting part, thereby installing the waterproof steel plate conveniently, safely and swiftly using a separate waterproof steel plate propulsion set produced to have a rectangular lead box having a sharp upper side part. In addition, disclosed is a non-excavation method for forming an underground composite structure, wherein concrete composites with various shapes are welded and installed inside the upper part of the steel pipe having the waterproof steel plate installed and connected thereto to obtain perfect waterproofness using the waterproof steel plate installation method for connecting a steel pipe using a special method to reduce the installation number of reinforcing rods, earth pressure supports, etc., thereby achieving economical efficiency, and the steel pipe, which is a simple temporary facility material during the curing of concrete, is integrated with concrete, which is a main structure, to obtain a structurally more solid permanent composite concrete structure.

Description

Waterproof steel plate installation method using waterproof steel plate propulsion set and method of forming underground composite structure using the same}

The present invention relates to a method for installing a waterproof iron plate using a waterproof iron plate propelling set and a method for forming a non-intercepted underground composite structure using the same,

More specifically, a number of long press-fitted steel pipes in the ground along the tunnel construction surface are connected and installed with a waterproof iron plate to make it waterproof. A special method for installing a waterproof steel plate for connecting steel pipes, and

Furthermore, using this special method of installing a waterproof steel plate for steel pipe connection, various types of concrete composite materials are welded and installed inside the upper part of the steel pipe where the waterproof iron plate is connected and installed so that the waterproofing can be achieved perfectly to install reinforcing bars and earth pressure support. It relates to a method for forming a non-interleaved underground composite structure that is economical by reducing the quantity and allows a more structurally sound permanent composite concrete structure to be obtained by integrating a steel pipe, which is a simple temporary material, with the concrete, which is the main structure, during concrete curing.

In order to form an underground tunnel, a tunnel structure capable of withstanding the stress generated from the outside of the tunnel is installed. One example of a conventional method for installing a structure for forming an underground tunnel is Korean Patent Registration No. It is disclosed in No. 10-1069705, etc.

However, a closer look at the steel pipe connection process connecting the steel pipe 10 and the steel pipe 10 among the processes described in Patent Registration No. 10-0505301 among these conventional inventions,

In the press-fitted steel pipe, the side wall of the steel pipe is cut at regular intervals to withstand the earth pressure, partially leaving a part of the steel pipe, and the upper and lower sides of the cut incision are respectively welded to each other by welding, etc. After connecting and installing the earth pressure support that supports the earth pressure from the top and bottom, the remaining part is cut again, and the waterproof iron plate and the lower iron plate are installed in the incision in the same way as above. Steel pipes were connected to each other.

This method of connecting steel pipes takes a lot of construction time due to partial incision and repetition of installation, which causes a problem in that the construction cost increases due to the extension of the construction period. There was a frequent problem of loss of earth pressure in the construction process, such as excavating

That is, after excavating the inside of the steel pipe, the side is cut, the soil between the steel pipes is excavated and removed, and then a waterproof iron plate must be attached to the upper side of the cut surface, so it is impossible to prevent soil leakage. After welding in close contact with the cut surface, lifting another heavy waterproof steel plate and connecting by welding must be repeated dozens of times depending on the length of the steel pipe and in some cases hundreds of times, so the operation is very difficult and time consuming. There were also many safety issues.

And in order to solve the problem of stability, after welding the waterproof steel plate, after welding the lower steel plate inside the steel pipe, a large number of earth pressure supports must be vertically attached between them. It was difficult and time consuming, and of course, settlement could occur at this time.

In addition, there were many cases where waterproofing was not done perfectly.

On the other hand, looking at the installation method of the waterproof steel plate for steel pipe connection described in Patent Registration No. 10-1069705, which is a previously registered invention of the person,

The process of press-fitting the underground tunnel construction surface to form a round or square shape depending on the shape of the construction surface, and installing a temporary earth pressure support for steel pipe reinforcement for excavating and cutting the inner soil of the press-in steel pipe;

A process of forming an upper incision groove for press-fitting an upper waterproof iron plate by cutting the upper part of the steel pipe;

After installing the guide beam on the front side of the steel pipe, place the upper waterproof iron plate on the guide beam, press-fit the upper waterproof iron plate along the cut-out groove of the steel pipe with a hydraulic jack, and place a new waterproof iron plate in the rear space generated by the propulsion before and after The upper waterproof iron plate installation process of welding the steel pipe and the press-fitted upper waterproof steel plate after repeatedly installing the method of pushing the waterproof steel plate and pushing it together with the already press-fitted waterproof iron plate by the above method after welding;

A lower support plate installation process of cutting the lower part of the steel pipe and excavating the side soil below the upper waterproof steel plate, and then welding the lower support plate to the steel pipe in the lower part of the cut and excavated steel pipe;

The earth pressure support is installed between the upper waterproof steel plate and the lower support plate and the temporary earth pressure support installed in the steel pipe is removed.

However, such pre-registered inventions

The process of installing an upper waterproof steel plate in the upper incision groove made by cutting the upper part of the steel pipe;

It was very inconvenient because the process of installing the lower support plate in the lower incision groove made by cutting the lower part of the steel pipe had to be performed separately in different ways.

To install the lower support plate after installing the upper waterproof steel plate, cut the lower part of the steel pipe, excavate the side soil under the upper waterproof steel plate with the cut surface removed, and then weld the lower support plate to the lower part of the cut and excavated steel pipe with the steel pipe. It was inconvenient, such as taking a lot of time because I had to do the work I had to do.

Since the earth pressure support has to be installed between the upper waterproof iron plate and the lower support plate only after the installation of the upper waterproof steel plate and the lower support plate is completed, the waterproof iron plate must withstand the upper earth pressure load alone before installing the earth pressure support, and then install the earth pressure support after installing the lower support plate Therefore, the installation of earth pressure support was inconvenient, and there were many cases of installing more earth pressure support than necessary.

The present invention was devised in consideration of the problems of the related art as described above. A number of steel pipes long press-fitted into the ground along the tunnel construction surface are connected and installed with a waterproof iron plate to make it waterproof, but a specially manufactured waterproof iron plate propelling set of course, to provide a method for installing a waterproof steel plate for steel pipe connection so that it can be installed easily, safely and quickly using

Furthermore, using this special method of installing a waterproof steel plate for steel pipe connection, various types of concrete composite materials are welded and installed inside the upper part of the steel pipe where the waterproof iron plate is connected and installed so that the waterproofing can be achieved perfectly to install reinforcing bars and earth pressure support. By providing a method of forming a non-interleaved underground composite structure that is economical by reducing the quantity and allows a more structurally sound permanent composite concrete structure to be obtained by integrating the steel pipe, which is a simple temporary material, with the concrete, which is the main structure, during concrete curing.

As a result, the purpose is to obtain a structurally very safe underground synthetic structure that is more economical and quicker than other existing methods of forming unopened underground tunnels, and is strong, sturdy, and waterproof after construction. it will be put

The waterproof iron plate installation method using the waterproof iron plate propulsion set as a means for achieving the object described in the above-mentioned problem to be solved,

Basically, a number of round or square steel pipes having a predetermined length are excavated by pressing and inserting a number of round or square steel pipes with hydraulic jacks and propulsion auxiliary pipes horizontally to form a round or square shape depending on the shape of the construction surface on the underground tunnel construction surface. and removing the step (S1);

A step (S2) of greatly reinforcing the proof strength in advance by welding and fixing the earth pressure support inside the steel pipe in various forms during press-fitting and excavation of the steel pipe (S2);

a step (S3) of forming an upper cut-out groove by longitudinally cutting an adjacent steel pipe and the upper side of the steel pipe, the strength of which is greatly reinforced by the earth pressure supporter, inside each steel pipe;

A waterproof steel plate with a long press-fitted steel material, such as an H-beam, welded to the bottom is placed on the upper side,

A lower support plate connected to the waterproof iron plate and the earth pressure support is positioned on the lower side of the waterproof iron plate,

The front end of the waterproof iron plate protrudes more than the front end of the lower support plate, and then the left and right side walls are connected to a predetermined length so as to be inclined downward from the tip of the waterproof iron plate to the tip of the lower support plate to have a square box-shaped fresh box. A process (S4) of manufacturing a separate waterproof iron plate propulsion set;

After placing a separately manufactured waterproof steel plate propulsion set in front of the steel pipe with the upper incision groove,

Press the press-fitted steel material with a hydraulic jack to press-fit the freshness box into the ground, and at the same time press-in so that the tip of the waterproof steel plate is press-fitted to a predetermined depth along the upper incision groove of the steel pipe. and removing (S5);

A step (S6) of forming a lower incision groove by cutting the lower side of the steel pipe having an upper incision groove formed therein in the longitudinal direction;

When the upper cut-out groove and the lower cut-out groove are formed, the press-fitted steel material is pressed again with a hydraulic jack to press the freshness box further into the ground to a predetermined depth. a step (S7) of excavating and removing the internal soil between the steel pipes through the press-fitted freshness box as well as the tip of the lower support plate being press-fitted into the lower cut-out groove to a predetermined depth;

Repeat the above steps (S6) and (S7), but repeat the above steps (S6) and (S7) while welding the waterproof iron plate and the lower support plate set as the rear end of the waterproof iron plate propulsion set to the upper part After installing the waterproof steel plate and the lower support plate and removing the cut surfaces, the both ends of the upper waterproof iron plate and the lower support plate are welded to the upper and lower incision grooves, respectively, to complete the waterproofing, and then connect the lower support plate to form the lower formwork ( It is characterized in that it is made to connect the steel pipe and the steel pipe by performing S8).

On the other hand, the method for forming a non-interleaved underground synthetic structure of the present invention is,

Basically, after completing the installation of all the waterproof iron plates by performing the waterproof iron plate installation method using the electric waterproof iron plate propelling set,

A process (S9) of welding and installing a concrete composite material on the upper inner surface of the steel pipe and assembling and installing reinforcing bars inside the steel pipe and between the waterproof steel plate and the lower support plate;

A process of obtaining a structurally stronger permanent synthetic concrete structure by integrating the steel pipe, a simple temporary material, with the main structure, concrete, when concrete is cured by pouring concrete inside the steel pipe assembled with concrete composite material and reinforcing bars and between the waterproof steel plate and the lower support plate (S10) and;

It is characterized in that the lower part of the steel pipe and the lower form are removed while excavating the tunnel, and then a post-process (S11) of forming a tunnel bottom surface under the excavated tunnel part is further performed.

The waterproof iron plate installation method using the waterproof iron plate propelling set of the present invention is provided in a specially manufactured waterproof iron plate propelling set, and since the fresh box press-fitted into the ground is in the form of a square box and the upper side is covered with a waterproof iron plate, the soil will collapse. Since there is no concern at all, it is possible to safely excavate and remove the soil between the steel pipe and the steel pipe.

Since the waterproof iron plate is provided on the upper side and the lower support plate on the lower side as an integral part, the waterproof iron plate and the lower support plate are formed in the upper cut-out groove formed on the upper part of the steel pipe and the lower cut-out groove formed on the lower part of the steel pipe, respectively, during press-fitting of the waterproof iron plate propulsion set. can be press-fitted at once, so the connection of the waterproof iron plate and the connection of the lower support plate are made very quickly.

In addition, in the case of the earth pressure support used during the process (S4) of manufacturing the waterproof iron plate propulsion set, the upper part is fixed to the bottom of the press-fitted steel material welded to the bottom of the waterproof steel plate and the lower part is installed on the lower support plate to increase the bearing capacity to withstand the earth pressure This has the advantage of reducing material waste because the waterproof steel plate can withstand the earth pressure even if a small number of earth pressure supports are installed.

In addition, since guide rails made of various shapes that can be smoothed by covering the cut surfaces that are not smooth when forming the lower incision grooves are installed on the lower side of the steel pipe in which the upper incision groove is formed, both ends are seated on the upper surface of the guide rail. Since the lower support plate is easily press-fitted while sliding, as a result, there is an advantage that the press-fitting propulsion of the waterproof iron plate propulsion set is made easily.

On the other hand, the method for forming a non-interleaved underground composite structure of the present invention includes all of the waterproof iron plate installation methods using the aforementioned waterproof iron plate propelling set,

The most essential feature of the waterproof iron plate installation method using the waterproof iron plate propulsion set is that the freshness box provided in the waterproof iron plate propelling set and press-fitted into the ground has a rectangular shape and the upper side is covered with a waterproof iron plate, so there is no risk of soil collapsing. Of course, since there is no such thing, it is possible to safely excavate and remove the soil between the steel pipe and the steel pipe.

Since the waterproof iron plate is provided on the upper side and the lower support plate on the lower side as an integral part, the waterproof iron plate and the lower support plate are formed in the upper cut-out groove formed on the upper part of the steel pipe and the lower cut-out groove formed on the lower part of the steel pipe, respectively, during press-fitting of the waterproof iron plate propulsion set. can be press-fitted all at once, so the advantage of connecting the waterproof steel plate and the lower support plate very quickly is displayed.

In addition to this, a concrete composite material is welded to the upper inner surface of the steel pipe, but a stud is adopted as a concrete composite material and it can be conveniently and quickly welded using a stud gun.

After that, when concrete is poured inside the steel pipe where the concrete composite material and rebar are assembled and between the waterproof steel plate and the lower support plate, the concrete is firmly attached to the concrete composite material as well as the reinforcing bar assembly, so the cohesion is increased. The advantage of being able to obtain a structurally more robust permanent composite concrete structure by integrating it with phosphorus concrete is further exhibited.

Therefore, the present invention is a very innovative way to obtain a safe underground tunnel structure made of a permanent synthetic concrete structure that is not only strong and sturdy, but also waterproof, which is more economical and quicker than other existing methods for forming an unopened underground tunnel. It is obviously an invention.

1A to 11 are views for explaining the method of the present invention,
1A is a view showing a press-fitted state of a circular steel pipe;
1b is a view showing a press-fitted state of a square steel pipe.
Figure 2 is a view in which the internal force is reinforced by installing an earth pressure support inside the press-fitted steel pipe.
3 is a view showing a state in which the upper incision groove is formed by cutting the upper part of the steel pipe at the press-fitting position of the waterproof iron plate.
4 is a view showing a separately manufactured waterproof iron plate propulsion set.
5 is a view showing a state in which the waterproof iron plate propulsion set is positioned in front of the steel pipe.
6 is a view showing a state in which only the upper incision groove is press-fitted to the waterproof iron plate by press-fitting the waterproof iron plate propulsion set.
7 is a view showing a state in which a lower cut-out groove is formed in the lower part of the steel pipe.
8 is a view showing a state in which the waterproof iron plate is press-fitted into the upper incision groove to a predetermined depth by press-fitting the waterproof iron plate propulsion set again, and at the same time, the lower support plate is press-fitted into the lower incision groove.
9 is a view showing a state in which a lower formwork is installed in the lower part of a steel pipe and a concrete composite material for synthesizing the upper part of the steel pipe is welded to the inner surface of the upper part of the steel pipe.
10 is a view showing a state in which reinforcing bars are assembled inside a set of steel pipes and waterproof steel plates;
11 is a view showing a state in which concrete is poured and cured into a set of steel pipes and waterproof iron plates.

Hereinafter, one embodiment of the present invention for achieving the object described in the problem to be solved will be described in detail with reference to the accompanying drawings. It should be understood that one embodiment described below is illustratively shown to help the understanding of the present invention, and the present invention may be implemented with various modifications different from the one embodiment described herein. However, in the description of the present invention, if it is determined that a detailed description of a related known function or component may unnecessarily obscure the gist of the present invention, the detailed description and detailed illustration thereof will be omitted. In addition, the accompanying drawings are not drawn to scale in order to help understanding of the invention, but dimensions of some components may be exaggerated.

1A to 11 are views for explaining a method for installing a waterproof iron plate using the waterproof iron plate propelling set of the present invention and a method for forming a non-intercepted underground composite structure using the same.

First, the present invention connects and installs a number of steel pipes long press-fitted into the ground along the tunnel construction surface with a waterproof iron plate to make it waterproof. A method of installing a waterproof iron plate using a special waterproof iron plate propelling set that can be installed easily, safely and quickly, and

Furthermore, using this special method of installing a waterproof steel plate for steel pipe connection, various types of concrete composite materials are welded and installed inside the upper part of the steel pipe where the waterproof iron plate is connected and installed so that the waterproofing can be achieved perfectly to install reinforcing bars and earth pressure support. It is stated in advance that it relates to a method for forming a non-interleaved underground composite structure that is economical by reducing the quantity and enables a more structurally sound permanent composite concrete structure by integrating the steel pipe, a simple temporary material, with the concrete, which is the main structure, during concrete curing.

Accordingly, a method for installing a waterproof iron plate using the waterproof iron plate propelling set of the present invention will be described first.

The method for installing a structure for forming an underground tunnel of the present invention is first, as shown in FIGS. 1A and 1B , by using a hydraulic jack and a propulsion auxiliary pipe to construct a steel pipe 100 of various shapes such as a circle or a square having a predetermined length. According to the shape of the construction surface, the surface is press-fitted horizontally to form an arcuate or square shape, and the soil in the steel pipe 100 is excavated and removed (step (S1)).

Then, as shown in FIG. 2, the steel pipe 100 is press-fitted and the earth pressure support 200 is directly welded and fixed in various shapes at predetermined intervals inside the earth-excavated steel pipe 100 to greatly reinforce the proof strength in advance. give (step S2).

Here, the earth pressure support 200 can be used by mixing any one or two or more types selected from I-beam, H-beam, channel, pipe, and iron plate,

As shown in the drawing, it is fixedly installed on both sides of the steel pipe 100 in the form of a pair of vertical columns, and in addition, the upper or upper and lower parts of the steel pipe are supported by connecting the upper or upper and lower ends of the pair of vertical columns to support the bearing capacity. It can be installed in various forms, such as to greatly reinforce the

After performing the above process (S2), as shown in FIG. 3 , the steel pipe 100 and the upper side of the steel pipe 100, which have been significantly reinforced in bearing strength by fixing the earth pressure support 200, are placed inside each steel pipe 100. In the upper incision groove 110 is formed long in the longitudinal direction (step (S3)).

And, as shown in FIG. 4, a separate waterproof iron plate propelling set 1000 is manufactured. That is, the waterproof iron plate 300 in which the press-fitted steel material 310 made of steel such as the H-beam 311 is long welded on the bottom surface is positioned on the upper side,

A lower support plate 400 connected to the waterproof iron plate 300 and the earth pressure support 320 is positioned below the waterproof iron plate 300,

The front end of the waterproof iron plate 300 protrudes more than the front end of the lower support plate 400, and then the left and right side walls 510 are inclined downward from the tip of the waterproof iron plate 300 to the front end of the lower support plate 400. A separate waterproof iron plate propelling set 1000 is manufactured so that the freshness box 500 of a rectangular shape with a sharp upper part is formed by connecting and installing it to a predetermined length (step S4).

At this time, the waterproof iron plate propulsion set 1000 may be pre-manufactured and placed in advance before the steel pipe is pressed into the ground.

And the earth pressure support 320 used in performing the process (S4) of manufacturing the waterproof iron plate propelling set 1000 may be connected and installed between the waterproof iron plate 300 and the lower support plate 400 in various ways, preferably As in the present invention, the upper part is fixed to the bottom surface of the press-fit steel material 310 welded to the bottom surface of the waterproof iron plate 300, and the lower part is installed on the lower support plate 400 to increase the bearing capacity to withstand the earth pressure. Even when the support 320 is installed, it is most ideal for the waterproof iron plate 300 to withstand the earth pressure.

Then, when a separate waterproof iron plate propelling set 1000 is prepared by performing the above process (S4), a waterproof iron plate propelling set 1000 manufactured separately in the front of the steel pipe 100 in which the upper incision groove 110 is formed as shown in FIG. 5 . ) after placing

6, the press-fitted steel material 310 is pressed with a hydraulic jack (not shown) to preferentially press-fit the freshness box 500 into the ground, and at the same time, the tip of the waterproof iron plate 300 is formed in the upper cut-out groove 110 of the steel pipe 100. ) to be press-fitted to a predetermined depth, and then excavated and removed the soil between the steel pipe 100 and the steel pipe 100 through the freshness box 500 press-fitted underground (step S5).

At this time, since the freshness box 500 has a rectangular shape and the upper side is covered with a waterproof iron plate 300, there is no risk of soil collapsing, so it is possible to safely excavate the soil between the steel pipe 100 and the steel pipe 100 have.

Then, after performing the process (S5), the lower side of the steel pipe 100 in which the upper incision groove 110 is formed is cut in the longitudinal direction to form the lower incision groove 120 as shown in FIG. 7 (Step S6) )).

Here, the lower incision groove 120 can be formed by cutting all at once in the longitudinal direction or sequentially cutting to a predetermined depth for safety because the earth pressure support 101 is installed inside the steel pipe 100 to reinforce the bearing capacity. .

On the other hand, when the lower cut-out groove 120 is formed, various types of shapes that can be smoothed by covering the cut surface that are not smoothly cut, such as "L" shape steel 610 and other various types of shape steel guide rail 600 ) by installing

Later, by allowing the lower support plate 400 on which both ends are seated on the upper surface of the guide rail 600 to slide easily later, it is also possible to facilitate press-fitting of the waterproof iron plate propelling set 1000 as a result.

When both the upper incision groove 110 and the lower incision groove 120 are formed by performing the process (S6),

As shown in FIG. 8 , the press-fitted steel material 310 is pressed again with a hydraulic jack (not shown) to press the freshness box 500 deeper into the ground, and the tip of the waterproof iron plate 300 is in the upper cut-out groove of the steel pipe 100 . The freshness box 500 is press-fitted to a predetermined depth along the 110 and at the same time the front end of the lower support plate 400 is press-fitted to a predetermined depth along the lower incision groove 120, which is also press-fitted deeper into the ground. ) by excavating and removing the internal soil between the steel pipes 100 (step S7).

Then, the above steps (S6) and (S7) are repeatedly performed, but the electric process ( After installing the upper waterproof iron plate 300 and the lower support plate 400 by repeating S6) and the process (S7), and removing the cut surface, both ends of the upper waterproof iron plate 300 and the lower support plate 400 are placed on top, After completing the waterproofing by welding to the lower cut-out grooves 110 and 120, as shown in FIG. 9, the lower support plate 400 is connected to form the lower formwork 410 (step S8).

Here, the lower formwork 410 may be installed in a process (S9) to be described later.

As described above, the waterproof iron plate 300 and the lower support plate 400 can be easily installed on the steel pipe 100 using the waterproof iron plate propelling set 1000 .

As described above, in the waterproof iron plate installation method using the waterproof iron plate propelling set of the present invention, the freshness box 500 provided in the waterproof iron plate propelling set 1000 and press-fitted into the ground has a rectangular shape and the upper side is covered with the waterproof iron plate 300 . Since there is no risk of soil collapsing, it is possible to safely excavate and remove the soil between the steel pipe 100 and the steel pipe 100,

Since the waterproof iron plate 300 is provided on the upper side and the lower support plate 400 is integrally provided on the lower side, the upper incision groove 110 and the steel pipe formed in the upper part of the steel pipe 100 when the waterproof iron plate propelling set 1000 is press-fitted. Since the waterproof iron plate 300 and the lower support plate 400 can be press-fitted into the lower cut-out groove 120 formed in the lower part of the 100 at once, the connection of the waterproof iron plate 300 and the connection of the lower support plate 400 are very is done quickly

In addition, in the case of the earth pressure support 320 used in performing the process (S4) of manufacturing the waterproof iron plate propelling set 1000, the press-fitted steel material 310 welded to the bottom surface of the waterproof iron plate 300 is fixed to the upper surface and installed The lower part is installed on the lower support plate 400 to increase the bearing capacity to withstand the earth pressure in advance. can

At this time, the lower end of the earth pressure support can be configured in various ways so that it can be separated from the lower support plate.

In addition, the guide rail 600 made of various shapes that can be smoothed by covering the cut surface that is not smooth when the lower incision groove 120 is formed on the lower side of the steel pipe 100 in which the upper incision groove 110 is formed. In this way, since the lower support plate 400 on which both ends are seated on the upper surface of the guide rail 600 is easily slid and press-fitted, as a result, it is easy to press-fit the waterproof iron plate propulsion set 1000 .

This time, the method for forming a non-interleaved underground synthetic structure of the present invention will be described.

The method for forming a non-interleaved underground composite structure of the present invention includes all of the above-described waterproof iron plate installation methods using the waterproof iron plate propelling set of the present invention.

That is, after all of the waterproof iron plate installation methods (steps (S1) to (S8)) using the waterproof iron plate propelling set 1000 of the present invention described above are performed to complete the installation of the waterproof iron plate 300,

9 and 10, if the lower formwork 410 is not installed in the step (S8) of the waterproofing iron plate installation method, the lower support plate 400 is connected to form the lower formwork 410. , a process of welding and installing a concrete composite 700 on the upper inner surface of the steel pipe 10 and assembling and installing a reinforcing bar 800 inside the steel pipe 100 and between the waterproof iron plate 300 and the lower support plate 400 (S9) and ,

Then, as shown in FIG. 11, concrete is poured inside the steel pipe 100 in which the concrete composite material 700 and the reinforcing bar 800 are assembled and between the waterproof iron plate 300 and the lower support plate 400, so that when concrete is cured, simple visibility A process (S10) of obtaining a structurally more robust permanent composite concrete structure by integrating the steel pipe (100), which is the snow material, with the concrete, which is the main structure;

It is made by further performing a general post-process (S11) of removing the lower part of the steel pipe and the lower formwork while excavating the tunnel part, and then forming the tunnel bottom surface under the excavated tunnel part.

Here, the concrete composite material 700 may use various types of concrete composite material 700,

In the present invention, the stud 710 is adopted, and the reason why the stud 710 is adopted in this way is that it can be conveniently and quickly welded using a stud gun (STUD GUN).

The stud 710 is of course welded to the upper inner surface of the steel pipe 100, and in some cases may be selectively welded to the lower face of the waterproof steel plate.

As described above, the method for forming a non-opening underground tunnel structure of the present invention includes all of the above-described waterproof iron plate installation methods using the waterproof iron plate propelling set of the present invention,

The most essential feature exhibited in the waterproof iron plate installation method using the waterproof iron plate propelling set, that is, the freshness box 500 provided in the waterproof iron plate propelling set 1000 and press-fitted into the ground is a square box shape and the upper side is the waterproof iron plate 300 Since there is no risk of soil collapsing because it is covered with

Since the waterproof iron plate 300 is provided on the upper side and the lower support plate 400 is integrally provided on the lower side, the upper incision groove 110 and the steel pipe formed in the upper part of the steel pipe 100 when the waterproof iron plate propelling set 1000 is press-fitted. Since the waterproof iron plate 300 and the lower support plate 400 can be press-fitted into the lower cut-out groove 120 formed in the lower part of the 100 at once, the connection of the waterproof iron plate 300 and the connection of the lower support plate 400 are very In addition to showing the advantage of being made quickly,

In addition to this, a concrete composite 700 is welded to the upper inner surface of the steel pipe 100, but a stud 710 is adopted as a concrete composite material and it can be conveniently and quickly welded using a stud gun. There is, of course,

After that, when concrete is poured between the inside of the steel pipe 100 in which the concrete composite material 700 and the reinforcing bar 800 are assembled and between the waterproof iron plate 300 and the lower support plate 400, the concrete is made of the concrete composite material 700 as well as the reinforcing bar Since it is firmly attached to the assembly and the binding force is increased, the steel pipe 100, which is a simple temporary material, can be integrated with the concrete, which is the main structure, to obtain a structurally more robust permanent composite concrete structure.

Therefore, as a result, the present invention can obtain a safe underground composite structure made of a permanent synthetic concrete structure that is economical and quicker than other existing methods for forming an unopened underground tunnel, and is strong and sturdy and waterproof as well. .

100: steel pipe 110: upper incision groove
120: lower incision groove 200, 320: earth pressure support
300: waterproof steel plate 310: press-fitting steel
311: H beam 400: lower support plate
500: lead box 510: left and right side walls
600: guide rail 610: "L" shape steel
700: concrete composite 710: stud
800: reinforcing bar 1000: waterproof steel plate propulsion set

Claims (6)

A plurality of round or square steel pipes 100 having a predetermined length are pressed into the underground tunnel construction surface by using a hydraulic jack and a propulsion auxiliary pipe to form a circle or a rectangle according to the shape of the construction surface. The process of excavating and removing internal soil (S1) and;
a step (S2) of greatly reinforcing the proof strength in advance by welding and fixing the earth pressure support 200 inside the steel pipe 100 in various forms during press-fitting and excavation of the steel pipe 100;
To form an upper incision groove 110 by longitudinally cutting the adjacent steel pipe 100 and the upper side of the steel pipe 100, which are greatly reinforced with the earth pressure support 200, in the inner side of each steel pipe 100 step (S3);
A waterproof steel plate 300 having a long press-fitted steel material 310 welded to the bottom is placed on the upper side,
A lower support plate 400 connected to the waterproof iron plate 300 and the earth pressure support 320 is positioned below the waterproof iron plate 300,
After making the front end of the waterproof iron plate 300 protrude more than the front end of the lower support plate 400, the left and right side walls 510 are inclined downward from the tip of the waterproof iron plate 300 to the front end of the lower support plate 400. A process (S4) of manufacturing a separate waterproof iron plate propulsion set 1000 to have a fresh box 500 in the form of a square box by connecting and installing a predetermined length;
After positioning the separately manufactured waterproof iron plate propelling set 1000 in front of the steel pipe in which the upper incision groove 110 is formed,
Pressing the press-fitting steel material 310 with a hydraulic jack to press-fit the freshness box 500 into the ground and at the same time push-in so that the tip of the waterproof iron plate 300 is press-fitted to a predetermined depth along the upper cut-out groove 110 of the steel pipe 100, excavating and removing the internal soil between the steel pipes 100 through the freshness box 500 press-fitted into the ground (S5);
A step (S6) of forming a lower incision groove 120 by cutting the lower side of the steel pipe 100 in which the upper incision groove 110 is formed in the longitudinal direction (S6);
When the upper cut-out groove 110 and the lower cut-out groove 120 are formed, the press-fitted steel material 310 is pressed again with a hydraulic jack to further press the freshness box 500 into the ground to a predetermined depth, so that the tip of the waterproof steel plate 300 is a steel pipe. By pushing-in so that it is further press-fitted to a predetermined depth along the upper incision groove 110 of 100, the front end of the lower support plate 400 is also press-fitted into the lower incision groove 120 to a predetermined depth, of course, this is also press-fitted excavating and removing internal soil between the steel pipes 100 through the freshness box 500 (S7);
The above steps (S6) and (S7) are repeatedly performed, but the above-described process (S6) while welding the waterproof iron plate 300 and the lower support plate 400 set to the rear end of the waterproof iron plate propelling set 1000. After repeating the process (S7) and installing the upper waterproof iron plate 300 and the lower support plate 400, and after removing the cut surface, both ends of the upper waterproof iron plate 300 and the lower support plate 400 are cut into the upper and lower incision grooves, respectively. After completing the waterproofing by welding to (110) and (120), a process (S8) of connecting the lower support plate 400 to form the lower formwork 410 is performed to connect the steel pipe and the steel pipe. How to install a waterproof steel plate using an iron plate propelling set According to claim 1,
The earth pressure support 320 used when performing the process (S4) of manufacturing the waterproof iron plate propelling set 1000 is,
The upper part is fixed to the bottom of the press-fitted steel material 310 welded to the bottom of the waterproof iron plate 300 and the lower part is installed on the lower support plate 400 to increase the bearing capacity to withstand the earth pressure. A waterproof iron plate installation method using a waterproof iron plate propelling set, characterized in that the waterproof iron plate 300 is made to withstand earth pressure. According to claim 1,
When performing the process (S6) of forming the lower incision groove 120 by cutting the lower side of the steel pipe 100 in which the upper incision groove 110 is formed in the longitudinal direction,
The lower cut-out groove 120 has an earth pressure support 101 installed inside the steel pipe 100 so that the internal force is reinforced, so that the entire incision can be made in the longitudinal direction at once,
Alternatively, for safety, a waterproof iron plate installation method using a waterproof iron plate propelling set, characterized in that it can be formed while sequentially incising to a predetermined depth. According to claim 1,
When performing the process (S6) of forming the lower incision groove 120 by cutting the lower side of the steel pipe 100 in which the upper incision groove 110 is formed in the longitudinal direction,
When the lower incision groove 120 is formed, a guide rail 600 made of a shape that can be smoothed by covering the cut surface that is not cut smoothly is installed,
The waterproof iron plate installation method using the waterproof iron plate propelling set is made to facilitate press-fitting of the waterproof iron plate propelling set 1000 by allowing the lower support plate 400 on which both ends are seated on the upper surface of the guide rail 600 to slide easily. . After completing the installation of all the waterproof iron plates by performing the waterproof iron plate installation method using the waterproof iron plate propelling set of claim 1,
A process (S9) of welding and installing a concrete composite material 700 on the upper inner surface of the steel pipe 100 and assembling and installing reinforcing bars inside the steel pipe and between the waterproof steel plate and the lower support plate;
A permanent synthetic concrete structure that is structurally more robust by integrating the steel pipe 100, a simple temporary material, with the concrete as the main structure during concrete curing by pouring concrete inside the steel pipe assembled with concrete composite material and reinforcing bars and between the waterproof steel plate and the lower support plate A step of obtaining (S10) and;
A method for forming a non-excavated underground composite structure, characterized in that the steel pipe lower part and lower formwork are removed while excavating the tunnel part, and then a post-process (S11) of forming a tunnel bottom surface under the excavated tunnel part is further performed. 6. The method of claim 5,
The concrete composite material is a stud,
It is a method of forming a non-interleaved underground composite structure characterized by being welded using a stud gun and selectively welded to the inner surface of the upper inner surface of the steel pipe or the lower surface of a waterproof steel plate.

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