KR102153702B1 - On-site manufacturing underground indentation method and underground structure formation method - Google Patents

Abstract

The present invention relates to a method for indenting an on-site-produced underground indentation object, and a method for forming an underground structure using the same. According to the present invention, the method for indenting an on-site-produced underground indentation object comprises the steps of: manufacturing an underground indentation object (100″); continuously performing an indentation work; and allowing an end of an upper horizontal blade (102″) to overlap the upper surface of a rectangular pipe (200) and an end of a lower horizontal blade (103″) to be inserted into a lower cut groove (203). According to the present invention, transport costs can be remarkably reduced.

Description

On-site manufacturing underground indentation method and underground structure formation method using it

The present invention relates to a method for press-fitting an on-site underground press fitting and a method for forming an underground structure using the same, and more particularly, a number of steel plates cut to a predetermined width and length according to the site conditions are transported to the site and then directly squared at the site. After making an underground press fitting so that horizontal wings are integrally formed on both sides of the work tool and the square work tool,

By adopting a method of forming an underground structure in a special way in the underground using this,

Since it is possible to minimize the volume of material, it is possible to transport a large amount at once, so it is easy to transport and can significantly reduce transport costs.

After transporting to the site, since the underground press unit is manufactured directly in a large area of the site, it is very easy to manufacture the underground press unit and the manufacturing time can be drastically shortened.

The vertical gap width of the underground press unit can be accurately manufactured as much as the thickness of the slab formation, so if the manufactured earth press unit is pressed into the ground, the slab formation space is naturally formed.Therefore, it is possible to reduce the number of underground press units and to form slabs of accurate thickness. It is possible to form an underground structure that is structurally strong while being able to reduce materials drastically, and at the same time, it prevents waste of materials.

It uses the upper horizontal wing of the underground pressure unit to make waterproofing perfectly,

It is not only impossible to open and close due to the presence of impediments that cannot be transferred such as buildings, roads, and railroads, and it is particularly fast and structural even when underground structures such as underground roadways and tunnels cannot be installed by the existing construction method because it is a low-top section. It relates to a field-produced underground press fitting method that can quickly and safely build a safe and waterproof underground structure, and a method of forming an underground structure using the same.

As an example of a conventional construction method for forming an underground structure, as disclosed in Korean Patent Registration No. 10-0505301, there are some differences in processes depending on the type of construction in general, but most of the construction surfaces for building underground structures The steel pipe press-in position measurement and lead pipe (not shown) installation process to complete the steel pipe press-fitting preparation by measuring the exact position in the

A steel pipe press-fitting process in which the steel pipe is placed in an arched or square press-in position and the steel pipe is pressed in a fair manner using a hydraulic jack and a propulsion auxiliary pipe,

In the steel pipe press-fitting process, the process of digging out the soil through the inlet of the earth prevention plate formed in the leading pipe and installing the earth prevention plate,

An off-pit grouting process that prevents soil leakage by installing a grout injection valve (not shown) from the inside of the steel pipe and grouting cement around the earth flow prevention plate through this,

A steel pipe connection process in which the side of the steel pipe is cut to a predetermined width to connect the steel pipe and the steel pipe with a waterproof steel plate,

If sidewall formation is required, the process of installing a sidewall forming earth plate (not shown), and

The process of installing formwork in spaces such as steel pipes,

The process of placing reinforcing bars in steel pipes and forms,

The process of pouring concrete into steel pipes and formwork,

After curing the concrete, an underground structure was installed as a process to excavate the tunnel inside the structure.

However, in this conventional method, in order to perform the steel pipe connection process that connects the steel pipe and the steel pipe during the above process, the side of the steel pipe is excavated, the soil between the steel pipes is excavated and removed, and the waterproof steel plate must be attached to the upper side of the cut surface. Since spillage cannot be prevented, it was necessary to carry out grouting out of the pit as a means to prevent soil leakage.

However, even with out-of-pit grouting in this way, it was not possible to completely prevent earth flow, so it was not possible to prevent the phenomenon of ground subsidence due to the occurrence of earth current between the steel pipe and the steel pipe.

In addition, a heavy waterproof steel plate of a predetermined size is lifted upwards in the steel pipe, and welding is carried out in a state in which it is in close contact with the cut surface, and then another heavy waterproof steel plate is lifted and welded to each other, depending on the length of the steel pipe. Since it had to be repeated hundreds of times, the work was very tricky and time-consuming, as well as safety problems.

Also, above all, there were many cases where waterproofing was not done perfectly.

On the other hand, not only the above-described conventional construction method but also other existing construction methods that are not introduced can not transfer obstacles, and in the case of roads or railroads, if the obstacles interfere with vehicle traffic, it is not possible to open and close. It was not suitable for the construction method that had to perform work in the low-tope section.

Therefore, it is urgently needed to devise a construction method that can quickly and safely construct an underground structure that is structurally very safe because it is fast, safe, sturdy, sturdy, and completely waterproof under any conditions.

The present invention was conceived in consideration of all the problems of the prior art as described above,

After transporting a number of steel plates cut in a predetermined width and length according to the site conditions to the site, the underground press assembly was manufactured so that horizontal blades were integrally formed on both sides of the rectangular work area and the rectangular work area directly at the site.

By adopting a method of forming an underground structure in a special way in the underground using this,

Since it is to cut a number of steel plates in a predetermined width and length according to the site conditions and transport them to the site, the volume can be minimized and a large amount can be transported at once, so transport is easy and transport costs can be drastically reduced.

After transporting to the site, the underground press unit is manufactured so that the horizontal blades are integrally formed at the upper and lower sides of the rectangular work area and the rectangular work area directly in a large space of the site, so the production of the underground press unit is very easy and the manufacturing time is dramatically Shortened,

The vertical gap width of the underground press unit can be accurately manufactured as the thickness of the slab formation, so if the manufactured underground press unit is pressed into the ground, the slab forming space is naturally formed.Therefore, it is made of circular steel pipes or square steel pipes manufactured in the existing uniform size. Slabs can be formed with a simpler, quicker and more accurate thickness than using the method of securing the slab formation space by using the underground press fittings, reducing the number of underground press fittings, and forming a structurally strong underground structure. Material can be drastically reduced and at the same time there is no waste of materials.

It is a very simple method of welding the ends of the upper horizontal blades overlapping each other of the post propulsion subsurface press unit or welding the ends of the upper horizontal blades of the post propelling subsurface press unit to the square tube body to ensure perfect waterproofing.

It is not possible to open and close due to the presence of impediments that cannot be transferred such as buildings, roads, and railroads, and in particular, because it is a low-top area, even if the existing construction method cannot install an underground structure in a predetermined form, Its purpose is to provide a field-made underground press fitting method that can quickly and safely build a safe and waterproof underground structure, and a method for forming an underground structure using the same.

The on-site manufacturing underground press-fit method of the present invention for achieving the object described in the above-mentioned problem and the underground structure forming method using the same, the on-site manufacturing underground press-fit method is basically in a predetermined width and length in accordance with the site conditions. After transporting a plurality of cut steel plates to the site, the process of manufacturing an underground press fitting so that the square work tool and the upper and lower horizontal wings are integrally formed at the site;

Using a hydraulic jack and a propulsion support pipe, the underground pressurized body of a predetermined length produced at the site is emptied one by one according to the shape of the construction surface, and then press-fitted into the ground sparsely and removed by excavating the inner soil. A step of continuously performing a work of welding the next underground press fitting to the rear end of the medium press fitting in a connected state;

Another underground presser of a predetermined length manufactured at the site is press-fitted so that a square work tool and horizontal blades on both sides of the upper and lower sides are integrally formed between the pre-propelled underground press units that are pressed in sparsely, and the internal soil is excavated and removed.

It is characterized in that it includes a step of making the ends of the horizontal wings on both sides of the post-propulsion underground presser close to each other so that the ends of the horizontal wings on the upper and lower sides of the pre-propelled underground presser are wrapped from the outside.

On the other hand, the underground structure formation method using the field-made underground presser of the present invention basically performs the on-site production underground press-fitting method of Clause 1 to push both the pre-propelled underground press-fit and the rear-propelled underground press-fit. ,

Removing the soil in the space between the upper and lower horizontal wings of the pre-propelled underground press unit and the post-propelled underground press unit, and then connecting and installing all the overlapping portions of the horizontal wings by welding to achieve perfect waterproofing;

A step of reinforcing the endurance force due to the upper and lower earth pressure by selectively installing various types of internal strength members inside the rectangular work tool or inside the upper and lower horizontal blades;

Cutting both sides of the square work tool to complete the slab formation space;

If there are various obstacles on the upper part of the low-tower depending on the work environment, if the side wall, reinforcing wall or column formation work is performed in advance, there is a risk of ground subsidence during the work. The process of completing the upper slab by curing; first, and then performing the process of forming side walls and reinforcing walls or columns, or

If there are no obstacles in the upper part of the low tow, the process of forming side walls and reinforcing walls or columns is performed in advance, and then concrete is placed and cured at once to form reinforcing walls or columns as well as upper slabs and side walls. It is characterized by further performing a process of removing soil and forming a floor surface by excavating the inside of the structure after performing the process.

In the field-made underground press-fit method of the present invention and the method of forming an underground structure using the same, a number of steel plates cut in a predetermined width and length in advance according to the site conditions are transported to the site, and then the rectangular work tool and the rectangular work tool are directly up and down at the site. After making an underground press unit so that horizontal wings are integrally formed on both sides,

By adopting a method of forming an underground structure in a special way in the underground using this,

Since it is transported to the site by cutting a large number of steel plates in a predetermined width and length according to the site conditions in advance, the volume can be minimized and a large amount can be transported at once, so transporting is easy and the transport cost can be drastically reduced. There is this.

In addition, the present invention is to fabricate an underground pressure unit such that horizontal blades are integrally formed on both sides of a square work tool and a square work tool in a wide space of the site after being transported to the site, so that the production of the underground press unit is very easy. The production time is drastically reduced,

The vertical gap width of the underground press unit can be accurately manufactured as the thickness of the slab formation, so if the manufactured underground press unit is pressed into the ground, the slab forming space is naturally formed.Therefore, it is made of circular steel pipes or square steel pipes manufactured in the existing uniform size. Slabs can be formed with a simpler, quicker and more accurate thickness than using the method of securing the slab formation space by using the underground press fittings, reducing the number of underground press fittings, and forming a structurally strong underground structure. There is an advantage in that material can be drastically reduced and waste of material can be reduced at the same time.

In addition, the present invention prevents damage to the obstacles as the ground subsides or rises during work because the top is naturally covered by the upper horizontal blades of the post-propelled underground press assembly, as well as the existing non-cracked steel pipe roof construction method. There is an advantage in that there is no need to perform any out-of-pit grouting work, which must be performed in order to prevent earth flow when excavation between the pressed steel pipe and the steel pipe as described above.

In addition, there is an advantage that waterproofing is made perfectly by welding the ends of the upper horizontal blades overlapping each other of the post-propelled underground press unit or by welding the ends of the upper horizontal blades of the post-propelled underground press unit to a square tube.

Therefore, the present invention is not only impossible to open and close due to the presence of impediments that cannot be transferred such as buildings, roads, and railroads, and in particular, because it is a low-topic section, it is not possible to install underground structures such as underpasses or tunnels by conventional construction methods. It is clear that it is a very innovative invention that exhibits various features such as the ability to quickly and safely construct an underground structure that is quick, safe, structurally safe and waterproof.

1 is a view showing a configuration state of a field-made underground press unit used in the present invention.
Figure 2 is a view showing another configuration state of the field-manufactured underground press unit used in the present invention.
3A to 3E are views showing an embodiment of constructing an underground structure as the present invention.
4A to 4E are views showing another embodiment of constructing an underground structure as the present invention.
Figures 5a to 5e is a view showing another embodiment for building an underground structure as the present invention.
6A to 6F are views showing an embodiment of constructing an underground structure using an underground press fitting of another configuration as the present invention.

Hereinafter, an 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. An exemplary embodiment described below is illustratively shown to aid understanding of the present invention, and it is to be understood that the present invention may be variously modified and implemented differently from the exemplary embodiment described herein. However, when it is determined that detailed descriptions of known functions or components related to the present invention may unnecessarily obscure the subject matter of the present invention, detailed descriptions and detailed illustrations thereof will be omitted. In addition, the accompanying drawings are not drawn to scale to aid understanding of the invention, but dimensions of some components may be exaggerated.

The present invention basically transports a plurality of steel plates 10 cut in a predetermined width and length according to the site conditions to the site, and then directly at the site to the square work tool 101, 101', 101" and both sides of the top and bottom. After manufacturing the underground press fittings 100, 100', 100" so that the horizontal blades 102, 103, 102', 103', 102", 103" are integrally formed,

Thereafter, a method of forming an underground structure in a special method in the underground is adopted as described later by using the underground press fittings 100, 100', 100" manufactured directly in the field as described above.

Therefore, since a plurality of steel plates 10 are cut in a predetermined width and length according to the site conditions and transported to the site, the volume can be minimized and a large amount can be transported at once, so transport is easy and transport costs are drastically reduced. I can make it.

In addition, after transporting to the site, the rectangular work tool 101 (101') (101") and the upper and lower horizontal blades (102) (103), (102') (103'), (102 Because it is to manufacture the underground press fittings 100 (100') (100") so that the ")(103") is formed integrally, there is no obstacle so that the production of the underground press fittings 100, (100') (100") This is very easy and the manufacturing time is drastically shortened.

On the other hand, it is possible to accurately manufacture the upper and lower gap widths of the underground press units 100, 100', 100" as much as the slab formation thickness, so when the manufactured earth press units 100, 100', 100" are pressed into the ground, Naturally, the slab formation space 20 is formed.

Hereinafter, the underground press fittings 100 (100') (100") having the above features, that is, a plurality of steel plates 10 cut in a predetermined width and length according to the site conditions, are transported to the site and then Direct square work tool (101) (101') (101") and upper and lower horizontal blades (102) (103), (102') (103'), (102") (103") are manufactured to be integrally formed Several embodiments of forming an underground structure in the ground using one underground press fitting 100, 100', 100" will be described.

<Example 1>

As shown in Fig. 1, the ground pressure fitting 100 of a predetermined length manufactured in the field so that the square work tool 101 and the upper and lower horizontal blades 102 and 103 are integrally formed according to the slab formation thickness, as shown in Fig. 3a. Using a hydraulic jack and a propulsion support pipe (not shown), emptied one space at a time according to the shape of the construction surface, and press it into the ground sparsely, and excavate and remove the internal soil.

First, the press-fitting operation is continuously performed in a state in which the next underground press-fit 100 is welded to the rear end of the underground press-fit 100 to complete the press-fitting to the end.

Then, as shown in Figure 3b, so that the square work tool 101' and horizontal wings 102', 103' on the upper and lower sides are integrally formed in the middle between the pre-propelled underground press-fit 100 Another underground pressure fitting (100') of a predetermined length manufactured in the field is press-fitted in the same manner as in Fig. 3A, and the internal soil is excavated to remove,

The ends of the upper and lower horizontal blades 102', 103' of the post-propulsion underground press fitting 100' are wrapped around the ends of the upper and lower horizontal blades 102, 103 of the pre-propelled earth press unit 100, respectively. Keep it close.

In this way, if both the pre-propelled underground press unit 100 and the post-propelled underground press unit 100' are pushed in,

It is easy to press-in the pre-propelled underground press unit 100 and the upper horizontal blades 102 and 102 ′ of the post-propelled underground press unit 100 ′, regardless of the market place, especially in the low-topic section. In addition, since the ground is supported horizontally by the upper horizontal wings 102, 102', it is prevented that the obstacles are damaged as the ground subsides or rises.

That is, in the case of the existing non-cracked steel pipe roofing method, only circular steel pipes are pressed, so when the ground subsides while earth flows between the steel pipes and the steel pipes, a serious problem could occur, but in the case of the present invention, this There are no problems at all.

In addition, each of the upper and lower horizontal blades 102, 103, 102 ′, 103 ′ formed on both upper and lower sides of the pre-propelled underground press fitting 100 and the post propelled earth press fitting 100' Since they are overlapped with each other, they naturally cover both the top and the bottom, so when excavating between the pressed steel pipe and the steel pipe like the existing non-cracked steel pipe roofing method, the out-of-pit grouting work, which must be performed in order to prevent earth flow, is completely performed. You do not have to do.

After that, as shown in Fig. 3d, the space between each of the horizontal wings 102, 103, and 102', 103' formed in the pre-propelled underground presser 100 and the post-propelled underground presser 100' After removing the soil of the upper and lower horizontal blades 102, 103, (102', 103') all overlapping parts are connected and installed by welding to perform a process to achieve perfect waterproofing.

At this time, the present invention selectively in the inside of the square work tool 101, 101' or the upper and lower horizontal blades 102, 103, (102') (103') in various forms ) (152) can be installed, and the reason for doing this is to reinforce the endurance force due to the upper soil pressure.

In this way, the upper horizontal blades 102 and 102 ′ are connected and installed by welding so that the overlapped parts are completely waterproof, and the lower horizontal blades 103 and 103 ′, which are also connected and installed by welding, the overlapped parts There is no need to install a separate formwork for slab formation because it plays the role of a formwork for forming as it is.

Then, as shown in FIG. 3E, both sides of the square work tools 101 and 101' are cut to complete the slab formation space 20.

After that, the subsequent process may be different depending on the working environment.

In other words, if various obstacles exist on the upper part of the low-topic, if the side wall 2000 and the reinforcing wall or the column 2500 are formed in advance, there is a risk of ground subsidence during the work, so selectively go to the interior of the slab formation space 20. The process of completing the upper slab 1000 by reinforcing reinforcement and curing concrete may be performed first, and then the side wall 2000 and the reinforcing wall or column 2500 may be formed.

In addition, when various obstacles do not exist in the upper part of the low-topic, the side wall 2000 and the reinforcing wall or the pillar 2500 are formed in advance, and then concrete is poured and cured at a time, so that the upper slab 1000 and the side wall ( 2000), of course, it is also possible to form a reinforcing wall or pillar 2500.

Then, by excavating the inside of the structure 30 to remove the soil and forming the bottom surface, it is possible to build a solid underground structure in the ground.

<Example 2>

As shown in Fig. 1, in accordance with the slab formation thickness at the site, a square work tool 101 and horizontal blades 102 and 103 on the upper and lower sides are integrally formed so that an underground pressure fitting 100 of a predetermined length is manufactured,

First, as shown in Fig. 4a, a rectangular tube body 200 of a predetermined length manufactured to have a width that can be inserted between the horizontal wings 102 and 103 of the underground pressure fitting 100 is used by using a hydraulic jack and a propulsion auxiliary tube. Depending on the shape of the construction surface, it is emptied one by one, press-fitting into the ground at intervals, and excavating the internal soil to remove it.

First, the press-fitting operation is continuously performed in a state in which the next square tube 200 is welded and connected to the rear end of the square tube 200 pressed into the ground to complete the press-fitting to the end.

Then, as shown in Fig. 4b, the square work tool 101 and the upper and lower horizontal blades 102 and 103 are formed integrally between the spacedly pressed square tube 200 The length of the underground press fitting 100 is press-fit in the same way as in FIG. 4A and the internal soil is excavated to remove,

The ends of the horizontal blades 102 and 103 on the upper and lower sides of the post-propelled underground press unit 100 are in close contact so that the ends of the upper and lower sides of the pre-propelled square tube 200 are wrapped from the outside.

In this way, if both the pre-propelled square tube body 200 and the post-propelled underground press unit 100 are pushed in, the upper and lower horizontal wings 102 and 103 of the post-propelled underground press unit 100 are at the ends of the pre-propelled square tube body 200 ) It is easy to press-fit the ends of both sides of the upper and lower sides so that they are wrapped in close contact with the outside, regardless of the place of manufacture, especially in the low-topic section, as well as the ground by the upper horizontal wings 102 of the post-propelled ground pressure unit 100. Since it is supported horizontally, the obstacles are prevented from being damaged as the ground subsides or rises.

That is, in the case of the existing non-cracked steel pipe roofing method, only circular steel pipes are pressed, so when the ground subsides while earth flows between the steel pipes and the steel pipes, a serious problem could occur, but in the case of the present invention, this There are no problems at all.

In addition, since the ends of the upper horizontal blades 102 of the post-propelled underground press fitting 100 are overlapped on both ends of the upper surface of the square tube body 200, the upper part is naturally covered, so the conventional non-cracked steel pipe loop construction method In the case of excavation between the pressed-in steel pipe and the steel pipe, there is no need to do any out-of-pit grouting, which must be performed to prevent earth flow.

After removing the soil in the space between the upper and lower horizontal blades 102 and 103 of the post-propelled underground press assembly 100 as shown in FIG. 4C, all the overlapped parts of the horizontal blades 102 and 103 are connected and installed by welding. Therefore, it performs a process to achieve perfect waterproofing.

At this time, in the present invention, as shown in FIG. 4D, internal strength members 151 in various shapes can be optionally installed inside the square tube 200 or inside the upper and lower horizontal blades 102 and 103. The reason for doing so is It is to reinforce the endurance force by earth pressure.

In this way, since the upper horizontal blades 102 are connected and installed by welding, the overlapping parts are completely waterproof, and the lower horizontal blades 103, which are also connected and installed by welding, the overlapping parts play the role of formwork for forming the slab as it is. Therefore, there is no need to install a separate formwork for slab formation.

Then, as shown in FIG. 4E, both sides of the square work tool 101 and the square tube 200 are cut to complete the slab formation space 20.

Thereafter, as in Example 1, the subsequent process may be different depending on the working environment.

In other words, if various obstacles exist on the upper part of the low-topic, if the side wall 2000 and the reinforcing wall or the column 2500 are formed in advance, there is a risk of ground subsidence during the work, so selectively go to the interior of the slab formation space 20. The process of completing the upper slab 1000 by reinforcing reinforcement and curing concrete may be performed first, and then the side wall 2000 or the reinforcing wall or column 2500 may be formed.

And, if there are no various obstacles on the top of the low-topic, the formation of the side wall 2000, reinforcing wall, or pillar 2500 is performed in advance, and then concrete is poured and cured at once, and the upper slab 1000 and the side wall ( 2000), of course, it is also possible to form a reinforcing wall or pillar 2500.

Then, if the inside of the structure 30 is excavated to remove the soil and form the bottom surface, it is possible to construct an underground structure that is also sound underground.

<Example 3>

As shown in Fig. 1, in accordance with the slab formation thickness at the site, a square work tool 101 and horizontal blades 102 and 103 on the upper and lower sides are integrally formed so that an underground pressure fitting 100 of a predetermined length is manufactured,

As shown in Figure 5a, first, a rectangular tube body 200 of a predetermined length manufactured to have a width slightly larger than the width between the horizontal wings 102 and 103 of the underground press fitting 100 is used by using a hydraulic jack and a propulsion auxiliary tube. Depending on the shape of the construction surface, it is emptied one by one, press-fitting into the ground at intervals, and excavating the internal soil to remove it.

First, the press-fitting operation is continuously performed in a state in which the next square tube 200 is welded and connected to the rear end of the square tube 200 pressed into the ground to complete the press-fitting to the end.

Then, as shown in Figure 5b, the square work tool 101 and the upper and lower horizontal blades 102 and 103 in the middle between the spacedly press-in pre-propelled square tube 200 are manufactured directly at the site so that they are integrally formed. One predetermined length of the underground press fitting 100 is press-fit in the same manner as in Fig. 5A and the internal soil is excavated to remove,

First, internal strength materials in various forms are selectively installed inside the square tube body 200 to reinforce the endurance force due to the upper soil pressure, and then cut grooves 201 and 202 on both sides of the square tube body 200 are formed. The ends of the upper and lower horizontal blades 102 and 103 of the post propulsion underground press fitting 100 are respectively inserted.

In this way, when both the pre-propelled square tube body 200 and the post-propelled underground press body 100 are pushed in,

Since the ends of the upper and lower horizontal blades 102 and 103 of the post-propulsion underground press unit 100 are respectively inserted and guided into the upper and lower cut-out grooves 201 and 202 of the pre-propelled square tube 200, The press-fitting operation of the medium pressure unit 100 is easy regardless of the place of the city, especially in the low-topic section, and the ground is supported horizontally by the upper horizontal wing 102 of the post-propelled underground press unit 100. As the ground subsides or rises, the obstacles are prevented from being damaged.

That is, in the case of the existing non-cracked steel pipe roofing method, only circular steel pipes are pressed, so when the ground subsides while earth flows between the steel pipes and the steel pipes, a serious problem could occur, but in the case of the present invention, this There are no problems at all.

In addition, since the end of the upper horizontal blade 101 of the post-propelled underground pressure fitting 100 is pressed into the upper incision groove 201 of the square tube 200, the upper part is naturally covered, so that the existing non-cracked steel pipe There is no need to do any out-of-pit grouting work, which must be performed to prevent earth flow when excavating between a steel pipe and a steel pipe that has been pressed in like the roof method.

After removing the soil in the space between the upper and lower horizontal blades 102 and 103 of the post-propelled underground pressure fitting 100 as shown in FIG. 5C, the upper and lower cutout grooves 201 and 202 of the square tube body 200 All the ends of the upper and lower horizontal blades 102 and 103 inserted respectively are connected and installed by welding to perform a process to achieve perfect waterproofing.

In this case, the present invention can optionally install the internal strength members 151 and 152 in various shapes inside the square tube 200 or inside the horizontal blades 102 and 103, and the reason for doing this is It is to reinforce the enduring strength.

In this way, since the end of the upper horizontal wing 102 is connected to the upper incision groove 201 of the square tube 200 by welding, waterproofing is made perfectly, and the lower horizontal wing 103 is also connected and installed by welding. ), it is not necessary to install a separate formwork for forming a slab because they play the role of a formwork for forming the slab as it is.

Thereafter, as shown in FIG. 5D, both sides of the square work tool 101 and the square tube 200 are cut to complete the slab formation space 20.

Thereafter, as in Example 1, the sequence of subsequent processes may be different depending on the working environment.

In other words, if various obstacles exist on the upper part of the low-topic, if the side wall 2000 and the reinforcing wall or the column 2500 are formed in advance, there is a risk of ground subsidence during the work, so selectively go to the interior of the slab formation space 20. The process of completing the upper slab 1000 by reinforcing reinforcement and curing concrete may be performed first, and then the side wall 2000 or the reinforcing wall or column 2500 may be formed.

In addition, when various obstacles do not exist in the upper part of the low-topic, the side wall 2000 and the reinforcing wall or the pillar 2500 are formed in advance, and then concrete is poured and cured at once, so that the upper slab 1000 and the side wall ( 2000), of course, it is also possible to form a reinforcing wall or pillar 2500.

Then, if the inside of the structure 30 is excavated to remove the soil and form the bottom surface, a solid underground structure can be built (see FIG. 5E).

<Example 4>

As shown in Fig. 2, in accordance with the thickness of the slab formation in the field, the square work tool 101" and the upper and lower horizontal blades 102" and 103", respectively, are formed integrally at a predetermined height. Make (100"),

As shown in Fig. 6a, first, a square work tool 101" of the underground press fitting 100" and a square tube body 200 of a predetermined length made as small as the thickness of a sheet of steel are constructed using a hydraulic jack and a propulsion auxiliary pipe. Depending on the shape of the surface, it is emptied one by one, press-fitting into the ground at intervals, and excavating the internal soil to remove it.

First, the press-fitting operation is continuously performed in a state in which the next square tube 200 is welded and connected to the rear end of the square tube 200 pressed into the ground to complete the press-fitting to the end.

Then, in the middle between the spaced pre-propelled square tube 200, as shown in Figure 6b, as shown in Figure 2, in accordance with the slab formation thickness at the site, the square work tool 101" and the upper and lower sides to a predetermined height, respectively. Side horizontal wings (102", 103") are manufactured to be integrally formed in a predetermined length of the ground pressure fitting (100") in the same way as in Figure 6a, but excavated to remove the internal soil,

First, internal strength materials (not shown) in various shapes are selectively installed inside the square tube body 200 to reinforce the endurance force by the upper soil pressure, and then lower cutout grooves 203 only at a predetermined height below both sides of the square tube body 200. ) To form an upper horizontal wing (102") of the post-propelled underground press fitting (100") is overlapped with the upper surface of the square tube body (200), and the lower horizontal wing (103") end to the lower incision groove (203) To be inserted.

In this way, the ends of the lower horizontal blades 103" of the post-propelled underground press body 100" are inserted and guided in the lower cutout grooves 203 formed at a predetermined height at the lower sides of both sides of the pre-propelled square tube body 200. Press-fitting of the post-propulsion underground press fitting (100") is easy regardless of the place of the city, especially in the low-topic section, and the upper horizontal wing (102") of the post-propulsion underground press fitting (100") is square Since it is in a state of being superimposed on the upper surface of the pipe body 200, the ground is supported horizontally, so that the obstacles are prevented from being damaged as the ground subsides or rises.

That is, in the case of the existing non-cracked steel pipe roofing method, only circular steel pipes are pressed, so when the ground subsides while earth flows between the steel pipes and the steel pipes, a serious problem could occur, but in the case of the present invention, this There are no problems at all.

In addition, since the end of the upper horizontal blade 102" of the post-propelled underground press fitting 100" is press-fit over the upper surface of the square tube 200, the upper part is naturally covered, so that the existing non-cracked steel pipe roof construction method and When excavating between the steel pipe and the steel pipe pressed together, there is no need to do any out-of-pit grouting work, which must be performed to prevent earth flow.

Thereafter, as shown in FIG. 6D, after removing the soil between the upper horizontal blade 102" and the lower horizontal blade 103" formed at a predetermined height of the post-propelled underground presser 100", the upper horizontal blade 102" The end of) is connected to the upper surface of the square tube body 200 by welding, and the end of the lower horizontal wing 103" is connected and installed by welding to the lower cutout groove 203 of the square tube body 200 so that perfect waterproofing is achieved. To perform the process.

In this case, the present invention can optionally install the internal strength members 151 and 152 in various shapes inside the square tube 200 or inside the upper and lower horizontal wings 151 and 152, and the reason for doing this is It is to reinforce the endurance force by.

In this way, the end of the upper horizontal wing (102") is connected to the upper surface of the square tube 200 by welding, so that the waterproofing is made perfectly.

The end of the lower horizontal wing 103" is connected to the lower incision groove 203 of the square tube 200 by welding, so that the lower formwork for forming the slab is exerted as it is.

Then, as shown in FIGS. 6E and 6F, both sides of the square work tool 101" and the square tube 200 are cut to complete the slab formation space 20.

At this time, as shown in Fig. 6e, the lower horizontal blades 103" are all connected with a formwork in the square working tool 101" of the square tube 200 and the post-propelled underground pressure fitting 100", and the lower girder forming part of the formwork If removed, it is also possible to form only the slab formation space 20,

As shown in FIG. 6F, if the lower portion of the square tube body 200 is left as it is and further connected laterally with the lower portion of the other side square tube body 200 to create a girder forming space, a girder 1500 may be further formed in addition to the slab 1000.

Thereafter, as in Example 1, the subsequent process may be different depending on the working environment.

In other words, if various obstacles exist on the upper part of the low-topic, if the side wall 2000 and the reinforcing wall or the column 2500 are formed in advance, there is a risk of ground subsidence during the work, so selectively go to the interior of the slab formation space 20. The process of completing the upper slab 1000 by reinforcing reinforcement and curing concrete may be performed first, and then a side wall 2000, a reinforcing wall, or a column 2500 may be formed.

In addition, when various obstacles do not exist in the upper part of the low-topic, the side wall 2000 and the reinforcing wall or the pillar 2500 are formed in advance, and then concrete is poured and cured at a time, so that the upper slab 1000 and the side wall ( 2000), of course, it is also possible to form a reinforcing wall or pillar 2500.

Then, by excavating the inside of the structure 30 to remove the soil and forming the bottom surface, it is possible to build a solid underground structure in the ground.

As described above, the on-site manufacturing underground press fitting method and the method of forming an underground structure using the same are carried out to the site after transporting a plurality of steel plates 10 cut in a predetermined width and length according to the site conditions to the site, and then working directly on the site. Underground pressure fittings so that the spheres 101, 101', 101" and horizontal blades 102, 103, 102', 103', 102", 103" are integrally formed on both upper and lower sides After making (100)(100')(100"),

It is to use this to perform a method of forming an underground structure in a special way in the underground,

Since it is to cut a number of steel plates 10 in a predetermined width and length according to the site conditions and transport them to the site, the volume can be minimized and a large amount can be transported at once, so transport is easy and transport costs can be drastically reduced. Of course,

After being transported to the site, the square work tool (101) (101') (101") and the upper and lower horizontal blades (102) (103), (102') (103'), (102") directly in the large space of the site It is to manufacture the underground press fittings 100 (100') (100") so that the (103") is integrally formed, so it is very easy to fabricate the underground press fittings 100, 100', 100" and the manufacturing time This is drastically shortened.

In addition, since the upper and lower gap widths of the underground press units 100 (100') (100") can be accurately manufactured as much as the thickness of the slab 1000 formed, the manufactured underground press units 100, 100', 100" Since the slab formation space 20 is naturally formed when pressed into, it is much more than using the method of securing the slab formation space by using an underground pressure solid made of a circular steel pipe or a square steel pipe manufactured with a conventional uniform size. It is possible to form slabs with simple, quick and accurate thickness, and a structurally strong underground structure can be formed while reducing the number of underground press units, which can significantly reduce material.

In addition, in the present invention, since the upper horizontal blades 102, 102 ′, 102 ″ of the underground press fittings 100, 100 ′, 100 ″ are all covered naturally, the ground may subside or Not only does it prevent damage to the obstacles as it rises, but also does not require any out-of-pit grouting work, which must be performed to prevent earth flow when excavating between the pressed steel pipe and the steel pipe like the existing non-cracked steel pipe roofing method.

In addition, the upper horizontal blades 102 (102') (102") overlapping each other of the underground press fittings 100, 100', 100" are welded to each other, or the upper side of the earth press fittings 100, 10" The waterproofing is made perfectly by a very simple method of welding the ends of the horizontal blades 102 and 102" to the square tube 200.

Therefore, the present invention is not only impossible to open and close due to the presence of impediments that cannot be transferred such as buildings, roads, and railroads, and in particular, because it is a low-topic section, it is not possible to install underground structures such as underpasses or tunnels by conventional construction methods. Even in the case, it is possible to quickly and safely build an underground structure that is fast, safe, structurally safe, and waterproof.

Although the present invention has been described with reference to a limited embodiment and drawings, it is not limited by this embodiment.

That is, the order of the process may be changed as necessary, as well as having the shape of a circular steel pipe or a square steel pipe that is used in the past, but miniaturizing the size of it, and then, the underground press fittings 100, 100', 100" ), and the side wall 2000, the reinforcing wall, or the column 2500 can be formed using the same method as the slab forming method, or a known method in the existing construction methods. As a matter of course, various modifications and variations are possible within the equivalent range of the technical spirit of the present invention and the claims to be described below by those of ordinary skill in the technical field to which the present invention belongs.

10: steel plate 20: slab formation space
30: inside the structure 100,100',100": underground pressure solid
101,101',101": square work tool 102,102',102": upper horizontal wing
103,103',103",104: lower horizontal wing part 151,152: load-bearing material
200: square tube 201: upper incision groove
201,203: lower incision groove 1000: slab
1500: girder 2000: side wall
2500: reinforcing wall or column

Claims (8)

delete delete delete After transporting a number of steel plates (10) cut in a predetermined width and length according to the site conditions to the site, the square work tool (101") and the upper and lower horizontal blades (102") (103") are integrated into the site. A process of manufacturing an underground press body (100") to be formed;
The square work tool (101") of the underground press unit (100") and the square tube body (200) of a predetermined length made as small as the thickness of a sheet of steel are placed in one space according to the shape of the construction surface using a hydraulic jack and a propulsion auxiliary pipe. As they emptied, they were pressed into the ground at intervals, and the inner soil was excavated and removed.
First, a step of continuously performing a press-fitting operation in a state connected by welding the next square tube 200 to the rear end of the square tube 200 pressed into the ground;
Between the pre-propelled square pipes 200 that are pressed in sparsely, the underground press fittings 100" of a predetermined length manufactured in the field are press-fitted and the internal soil is excavated to remove,
The square tube body 200 is selectively installed inside various types of internal strength materials to reinforce the endurance force due to the upper soil pressure, and then lower cutout grooves 203 are formed only on the lower sides of both sides of the square tube body 200 to propel the rearward. Including a process in which the end of the upper horizontal blade 102" of the underground press fitting 100" is superimposed on the upper surface of the square tube 200 and the end of the lower horizontal blade 103" is inserted into the lower incision groove 203; including On-site manufacturing underground press-fit method, characterized in that achieved by. delete delete delete After performing the on-site manufacturing underground press fitting method of Clause 4, both the pre-propelled square tube body 200 and the post-propelled underground press fitting (100") are press-fitted,
After removing the soil and sand in the space between the upper horizontal blade 102" and the lower horizontal blade 103" formed on both sides of the upper side of the post-propulsion underground pressure fitting (100"), the end of the upper horizontal blade 102" is a square tube body 200 ) The upper surface of the connection and installation by welding and the end of the lower horizontal wing (103") is connected by welding to the lower cutout groove (203) of the square tube body (200) to achieve perfect waterproofing;
A step of reinforcing the endurance force by the upper and lower earth pressure by selectively installing various types of internal strength members inside the square tube 200 or inside the upper and lower horizontal wings 102" and 103";
The process of completing the slab formation space 20 by cutting both sides of the square work tool 101" and the square tube 200,
If various obstacles exist in the upper part of the low-top according to the work environment, if the side wall 2000 and the reinforcing wall or column 2500 are formed in advance, there is a risk of ground subsidence during the work, so selectively the slab formation space 20 ) The process of completing the upper slab 1000 by reinforcing reinforcement inside and curing concrete; first, and then performing the process of forming side walls or reinforcing walls or columns, or
In the case where various obstacles do not exist on the upper part of the low-topic, the work of forming the side wall 2000 and the reinforcing wall or column 2500 is performed in advance, and then concrete is poured and cured at one time, and the upper slab 1000 and the side wall 2000 ), as well as performing the process of forming the reinforcing wall or the column 2500, and then excavating the inside of the structure 30 to remove the soil and further performing the process of forming the bottom surface. Underground structure formation method using.

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