WO2010104232A1

WO2010104232A1 - Shaft construction method using pipes, construction method of underground structure and tunnel construction method by the same

Info

Publication number: WO2010104232A1
Application number: PCT/KR2009/001468
Authority: WO
Inventors: 정광옥
Original assignee: Chung Kwang-Ok
Priority date: 2009-03-09
Filing date: 2009-03-23
Publication date: 2010-09-16

Abstract

The present invention relates to a shaft construction method of vertically building a plurality of pipes (10), including the steps of: setting a position for disposing a lower pipe (10a) among the pipes (10) on the surface of the ground (1) at which an upper opening part of the shaft is positioned; sinking the lower pipe (10a) by excavating the lower ground (1a) via the inside of the lower pipe (10a); and connecting an intermediate pipe (10b) among the pipes (10) to the upper end of the lower pipe (10a), wherein the pipes (10) are buried in the ground (1) and a hollow is formed inside the pipes (10) by repeating the excavating and connecting steps, and safe and simple construction of a shaft is realized at low cost in reduced construction time regardless of the state of the ground.

Description

Vertical sphere construction method using pipe, construction method of underground facilities and tunnel construction method using the same

The present invention relates to the construction field, and more particularly, to a method for excavating a vertical sphere, which is a kind of underground space structure.

Vertical sphere refers to a kind of underground space structure that is constructed for excavation or operation in the construction of hydraulic tunnels of mining, road, subway and railway traffic tunnels, and pumping-up power plants.

In the mining sector, the construction of large vertical spheres with a diameter of 7m or more for mining was actively performed before the 1980s, but since the number and size of mines have been reduced, the demand for small and medium-sized vertical spheres of about 3m for ventilation has been steadily occurring.

Vertical sphere extension in the mine ranges from less than 100m to more than 300m due to the positional deviation of the veins.

In the water resources sector, the demand for vertical zones arises when constructing a pumping station to generate electricity using water pumped during the daytime when the power usage is high and the power usage is high.

In case of pumping power plant, the vertical ball is extended because power is generated by using high drop.

In addition, since the management of verticality is an important issue in order to effectively use the energy of the drop and maintain the stability of the vertical sphere, it acts as a selection condition of the vertical sphere construction method.

In the construction and transportation sector, long roads and railway tunnels are being constructed due to linear and topographic conditions, and the design and construction of work shafts for shortening the construction period and ventilation shafts for ventilation are increasing.

In order to reflect the demand for expansion of electric power grids and communication networks, tunnels in which power and communication districts are undergrounded are increasing, and construction of vertical shafts for working and maintenance purposes for construction of main communication districts is also increasing.

Other applicable fields include work shafts and ventilation shafts in mines, ventilation shafts in road and railway tunnels, vertical ports for construction and operation of stockpiling bases, pumped water, power and communications, and disposal of radioactive waste disposal sites. And pilot vertical holes for excavation.

Conventional vertical sphere construction method is to excavate the ground by blasting or the like, while preventing the collapse of the excavation surface by shotcrete, lock bolts, etc., and to prevent the inflow of groundwater. It has been made by the process of pouring.

By the way, such a conventional method had the following problems.

First, in the case of poor rock formation, the risk of safety accidents due to falling rocks and collapses in the excavation surface was large, requiring many additional facilities such as river masonry, which required a lot of cost and increased air.

Second, in the case of soft weathered rock ground, it is only possible to install a separate earth wall or install the ground after improvement of the ground, so that the above-mentioned problems are more highlighted.

The present invention was derived to solve the above problems, the object of the present invention is to propose a vertical sphere construction method that is safe, simple, cost-saving, and shortened air, regardless of the soil defects .

In order to achieve the above object, the present invention provides a method of constructing a vertical sphere by constructing a plurality of tubular bodies 10 in the vertical direction, wherein the plurality of pipes 10 are formed on the upper surface of the ground 1 on which the upper trimming portion of the vertical sphere is to be located. Positioning step of placing the lower tube (10a) of the tube (10); An excavation and settlement step of digging the lower ground (1a) through the inside of the lower pipe (10a) to allow the lower pipe (10a) to settle downward; And a connecting step of connecting the central pipe body 10b of the plurality of pipe bodies 10 to the upper end of the lower pipe body 10a, and by repeating the excavating and connecting steps, the plurality of pipe bodies 10 In addition to the buried in the ground (1), it presents a vertical sphere construction method using a tubular body to form a hollow inside the plurality of tubular body (10).

The tubular body 10 is preferably formed of a material having strength and elasticity to withstand the blasting for the excavation of the inner lower ground (1a).

The tubular body 10 is preferably formed of steel.

It is preferable that the said tubular body 10 is circular cross section.

The lower end of the lower tube (10a) is preferably a pointed structure.

The connecting step preferably includes welding the upper end of the lower tube 10a and the lower end of the central tube 10b while the upper end of the lower tube 10a is exposed above the ground 1. Do.

In order to minimize the degree of protrusion of the joint 12 formed by the welding, it is preferable that the groove forming groove 11 is formed on the outer edge of the upper end or the lower end of the tubular body 10.

The excavation and settlement step preferably further comprises the step of filling the friction reducing material 20 in the region between the outer surface and the ground (1) of the tubular body (10).

The friction reducing material 20 preferably includes an aggregate.

The aggregate preferably includes three aggregates.

The friction reducing material 20 preferably contains soil or clay.

After completion of the embedding of the plurality of tubular bodies 10, it is preferable to further include a grouting step of injecting the grout 30 to the area between the outer surface of the tubular body 10 and the ground (1).

It is preferable to install and reinforce the reinforcing material 40 in the through hole 13 formed in the tubular body 10.

The through hole 13 of the tubular body 10 is closed by a temporary stopper 14, and after completion of embedding of the plurality of tubular bodies 10, the temporary stopper 14 is separated from the through hole 13. It is preferable to install the reinforcing material 40 through.

The present invention provides a method for constructing an underground facility using the vertical sphere construction method, comprising: an operation tunnel excavation step of excavating a working tunnel (2) for accessing an area where an upper portion of the underground facility is to be located; A work space forming step of forming a work space (3) so as to have a width wider than the width of the underground facilities in a region where an upper portion of the underground facilities is to be located; Presenting a construction method of underground facilities using a pipe, including; forming the vertical sphere (V) by using the vertical sphere construction method on the bottom of the workspace (3), forming an underground facility.

After the embedding of the plurality of tubular bodies 10 is completed, it is preferable to form the lower end part 50 by pouring concrete into the lower trimmed portion of the lower tubular body 10a.

After the embedding of the plurality of tubular bodies 10 is completed, it is preferable to form the inner wall 60 by pouring concrete inside the plurality of tubular bodies 10.

The present invention comprises a vertical sphere construction step of constructing the vertical sphere (V) by the vertical sphere construction method from the top to the underground region (t) to form a tunnel; It presents a tunnel construction method using a vertical sphere, including; inner tunnel (Ti) construction step of constructing the inner tunnel (Ti) from the bottom of the vertical sphere (V) to the outside.

An outer tunnel (To) construction step of constructing an outer tunnel (To) from the outside to the inside together with the vertical sphere construction step or the inner tunnel (Ti) construction step; It is preferable to further include a; penetrating step through the tunnel (T) by the encounter of the outer tunnel (To) and the inner tunnel (Ti).

A plurality of vertical sphere construction steps for constructing a plurality of vertical spheres (V); Constructing a plurality of inner tunnels (Ti) for constructing a plurality of inner tunnels (Ti) from the lower ends of the plurality of vertical spheres (V), respectively; It is preferable to further include a; penetrating step through the tunnel by the meeting of each inner tunnel (Ti).

Storing a female barrel (A) generated in the vertical sphere construction step adjacent to an upper trim of the vertical sphere (V); An aggregate crushing step of crushing the arm barrel (A) to produce aggregate; It is preferable to further include a concrete production step of producing shotcrete or lining concrete to be used in the inner tunnel (Ti) using the aggregate.

The required amount of the arm barrel (A) is dropped to the lower end of the vertical sphere (V), and the aggregate crushing step and the concrete production step is made by using the dropped arm barrel (A) at the lower end of the vertical sphere (V). It is preferable.

Underground square forming step of forming a wider underground square (Tw) than the inner tunnel (Ti) at the lower end of the vertical sphere (V), so as to secure the free space required for the aggregate crushing step and concrete production step; It is preferable to include.

The present invention proposes a vertical sphere construction method that allows construction to be safe, simple, cost-saving, and shortened in air, regardless of poor soil.

1 to 10 show an embodiment of the vertical sphere construction method according to the present invention,

1 to 5 are process diagrams.

6 is a perspective view of the lower tube;

7 is a process diagram of the grouting step.

8 is a cross-sectional view of the tube and the temporary plug.

9 is an exploded view of FIG. 8;

10 is a coupling state of the tube and the lock bolt.

11 to 22 illustrate an embodiment of a method for constructing underground facilities according to the present invention.

11-16 are process diagrams.

17 is a perspective view of a lower tube.

18 is a process diagram of the grouting step.

19 is a cross-sectional view of the tube and the temporary plug.

20 is an exploded view of FIG. 19;

21 is a view showing a coupling state of the tube and the lock bolt.

Fig. 22 is a sectional view of a structure in which an inner wall is formed.

23 and 24 are configuration diagrams for explaining a conventional tunnel construction method.

25 to 30 show an embodiment of the tunnel construction method according to the present invention,

25 to 28 are process diagrams of the first embodiment.

29 is a process chart of the second embodiment;

30 is a configuration diagram of the structure constructed by the third embodiment.

** Description of the symbols for the main parts of the drawings **

1,1a: Ground 10: Tube

10a: lower tube 10b: central tube

10c: upper tube 11: groove forming groove

12: joint portion 13: through hole

14: temporary stopper 20: friction reducing material

30: grout 31: injection tube

40: reinforcement 50: closed part

60: inner wall V: vertical sphere

T: Tunnel Ti: Inner Tunnel

To: Outer Tunnel Tw: Underground Plaza

A: Cancer

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a method for constructing a vertical sphere by constructing a plurality of tubular bodies 10 in the vertical direction. The process is as follows.

The lower tube 10a of the plurality of tube bodies 10 is disposed on the upper surface of the ground 1 where the upper trimmed portion of the vertical sphere is to be placed (FIG. 1).

Excavating the lower ground 1a through the inside of the lower tube 10a causes the lower tube 10a to settle downward by its own weight (FIG. 2).

The center tube 10b of the plurality of tubes 10 is connected to the upper end of the lower tube 10a (FIG. 3).

By repeating the above excavation step and the connecting step (Fig. 4), the plurality of pipes (10a, 10b, 10c) is embedded in the ground (1), and also to form a hollow inside the plurality of pipes (10) (Fig. 5).

This has the following effects.

First, in the case of forming and using the tubular body 10 by using a material having a predetermined strength or more, even in the case of a rock layer having poor rock quality, there is no risk of safety accidents due to falling rocks or collapse of the excavated surface, so that no temporary work such as steel field work is needed. The cost for this can be reduced, and the air for the installation can be shortened.

Second, even in the case of weak weathered rock, it is not necessary to install a separate earth wall or improve the ground.

Third, since it is possible to prevent the occurrence of cracks, inflow of groundwater, it is possible to prevent the relaxation of the surrounding ground to obtain a stable structure as a whole.

Hereinafter, specific examples of the construction method according to the present invention will be described.

The tubular body 10 may be any structure and material as long as it can satisfy the above-mentioned requirements. However, when the excavation method is performed by blasting, the tubular body 10 can withstand the blasting for the excavation of the inner lower ground 1a. It is preferably formed of a material having strength and elasticity (steel material or the like).

In the case of forming the tube body 10 by using the steel having excellent strength and elasticity as described above and performing the above-described method, it is possible to reliably prevent the loosening of the ground outside the tube body 10 when excavation by blasting, It has the added advantage of being able to sufficiently resist the earth pressure of the outer ground and to achieve the perfect crack prevention and ordering effect.

In the case of the low depth, it is preferable that the tubular body 10 has a rectangular cross section for convenience of space utilization, but in the case of the high depth, the tubular body 10 has a circular cross-sectional structure to maximize the cross-sectional secondary moment to obtain a stable structure. It is preferable in that it is.

To excavate the lower ground 1a through the inside of the lower tube 10a so that the process of allowing the lower tube 10a to settle downward, the lower end of the lower tube 10a is dug into the ground. It is preferable to take the pointed structure (V type, inverted leg type) to lift (FIG. 6).

The connecting step of connecting the lower tube 10a and the central tube 10b connected to the upper portion thereof may be implemented by a bolt-nut fastening method using a flange structure and various other methods.

However, since such a connection part is likely to be a stress weak part, it is required to have the same or better quality than other parts in order to prevent this.

As shown in FIG. 3, when the upper end of the lower tube 10a is exposed above the ground 1, the upper tube of the lower tube 10a and the lower end of the central tube 10b are welded. Since it is possible to perform dense and delicate work by welding in a comfortable and stable working environment, it is preferable in terms of ensuring the quality of the connection portion of the above-described pipe body.

When protrusions are formed in the joint part 12 formed by welding, stress concentration may occur, so that the weld forming groove 11 is formed outside the edge of the upper end or the lower end of the tubular body 10 in order to prevent this ( 1 to 4), it is preferable to minimize the extent to which the outer side of the joint 12 after welding is protruded compared to other portions.

When rock and the like protruding from the ground 1 to the tube body 10 during the excavation and subsidence of the tube body come into contact with the outer surface of the tube body 10, the settlement of the tube body 10 may be hindered by friction. May also cause damage to the tube (10).

In order to prevent this, it is preferable to fill the friction reducing material 20 in the area between the outer surface of the pipe body 10 and the ground 1 during the settlement process of the pipe body.

The friction reducing material 20 may be any material that can prevent the above-described friction. However, when the aggregate, such as sand or gravel, is used, the friction reducing material 20 may disperse underground stresses acting on the outer surface of the tubular body 10. More preferred.

When the outflow of groundwater is severe, it may serve as a waterproofing role by using soil or clay as the friction reducing material 20.

Furthermore, in the case of performing the filling operation using fine aggregate, earth and sand, and the like as the friction reducing material 20, after the completion of the embedding of the plurality of tubular body 10, between the outer surface of the tubular body 10 and the ground (1) By injecting grout 30 such as cement milk or the like into the region by using the injection tube 31 or the like, an advantage that a solid body is naturally formed between the outer surface of the tube body 10 and the ground 1 is added.

If additional reinforcement is required depending on the site conditions, reinforcing materials 40 such as lock bolts may be installed outside in the through-holes 13 formed in the tubular body 10 (FIG. 10).

To this end, the through hole 13 of the tubular body 10 during the excavation and installation of the tubular body 10 is closed by a temporary stopper 14 made of a rubber material or the like, and after completion of embedding the plurality of tubular bodies 10, It is preferable to take the manner in which the reinforcing material 40 is installed in the through hole 13 after the temporary plug 14 is separated (FIGS. 8 and 9).

Hereinafter, an embodiment of the underground facility construction method according to the present invention will be described in detail.

This relates to a method for constructing underground facilities by constructing a plurality of pipe bodies 10 in the vertical direction as in the above-described vertical sphere construction method. The process is as follows.

A working tunnel 2 for accessing the area where the upper part of the underground facility will be located is excavated, and a work space 3 is formed to have a width wider than the width of the underground facility in the area where the upper part of the underground facility will be located (Fig. 11).

The working tunnel 2 may take a horizontal structure or an underground facility tank according to the site conditions, and the reason why the width of the work space 3 is wider than the width of the underground facility is at the side of the installation area of the tubular body 10 to be described later. This is to make room for work.

The lower tube 10a of the plurality of tube bodies 10 is disposed on the upper surface of the ground 1 where the upper trim of the underground facility is to be located as the bottom of the work space 3 (FIG. 12).

By excavating the lower ground 1a through the inside of the lower tube 10a, the lower tube 10a is settled downward by its own weight (FIG. 13).

The center tube 10b of the plurality of tubes 10 is connected to the upper end of the lower tube 10a (FIG. 14).

By repeating the above excavation step and the connection step (Fig. 15), a plurality of tubular bodies (10a, 10b, 10c) is embedded in the ground (1), and a hollow is formed inside the plurality of tubular bodies (10) 16).

This allows to obtain the same effect as the vertical sphere construction method described above.

To excavate the lower ground 1a through the inside of the lower tube 10a so that the process of allowing the lower tube 10a to settle downward, the lower end of the lower tube 10a is dug into the ground. It is preferable to take the pointed structure (V type, inverted leg type) to lift (FIG. 17).

In order to prevent this, it is preferable to fill the friction reducing material 20 in the area between the outer surface of the tube 10 and the ground 1 during the settling process of the tube (FIG. 18).

If additional reinforcement is required depending on the site conditions, reinforcing material 40 such as a lock bolt may be installed outside in the through hole 13 formed in the tubular body 10 (FIG. 21).

To this end, the through hole 13 of the tubular body 10 during the excavation and installation of the tubular body 10 is closed by a temporary stopper 14 made of a rubber material or the like, and after completion of embedding the plurality of tubular bodies 10, It is preferable to take the manner in which the reinforcing material 40 is installed in the through hole 13 after the temporary plug 14 is separated (FIGS. 19 and 20).

It is more preferable that the lower trimmed portion of the lower tube 10a forms the bottom closure 50 by pouring concrete after completion of the embedding of the plurality of tube bodies 10 to secure watertightness and secure storage of the internal containment (FIG. 16).

After the completion of the embedding of the plurality of pipe bodies 10, when the concrete is poured into the inside of the pipe bodies 10 to form the inner wall 60, the rigidity of the entire wall can be increased. This can be prevented (Fig. 22).

When forming the upper bottom closure 50 and the inner wall 60 together, and closing them, the above-mentioned effect is more highlighted.

Hereinafter, the construction method of the tunnel according to the present invention will be described in detail.

As shown in Figs. 25 to 28, the construction method of the tunnel according to the present invention is basically to construct the vertical sphere (V) by the above-described construction method from the top to the underground area (t) to be formed tunnel Vertical sphere construction step; It is configured to include; inner tunnel (Ti) construction step of constructing the inner tunnel (Ti) from the lower end of the vertical sphere (V) to the outside.

That is, as in the prior art, the excavation of the tunnel is not necessarily performed from both sides of the underground region t in which the tunnel is to be formed (FIG. 23), but the vertical sphere V is constructed from the upper side of any point of the underground region t. The tunnel T is formed by the method of constructing the inner tunnel Ti from the lower end to the outer side.

In this case, even in the case of the tunnel (t) section connected to the bridge (b) as shown in Figure 24, since the construction of the tunnel can proceed at the same time as the construction of the bridge, the construction period can be significantly shortened effect There is.

In addition, in addition to the above vertical sphere construction step or the inner tunnel (Ti) construction step, by constructing the outer tunnel (To) from the outside to the inside as in the prior art, the tunnel by the encounter of the outer tunnel (To) and the inner tunnel (Ti) In the case of the method of penetrating (T), since the tunneling site is expanded from the conventional two points to four points, the effect of shortening the construction period in half can be obtained in theory.

Furthermore, a plurality of vertical spheres V are constructed at the same time, and a plurality of inner tunnels Ti are constructed from the lower ends of the plurality of vertical spheres V to the outside, respectively, to meet the respective tunnels Ti by the tunnels. In the case of taking the way through, since the city plant increases by two points corresponding to the number of vertical spheres (V), it is possible to obtain an effect of further shortening the construction period (FIG. 29).

25 to 28, the tunnel construction method according to the present invention will be described in more detail as follows.

Equipment and materials necessary for the vertical sphere and the inner tunnel are transported to the construction position using a helicopter (H), etc., thereby minimizing forest damage (FIG. 25).

The arm barrel A generated in the vertical sphere construction step is placed adjacent to the upper trim of the vertical sphere V (FIGS. 26 and 27).

The arm block A is crushed to produce aggregate, and the aggregate can be utilized for shotcrete or lining concrete to be used for the inner tunnel Ti, thereby reducing the material cost.

The crushing of such aggregates, the production of concrete may be carried out on the ground, but the required amount of the arm barrel (A) dropped to the bottom of the vertical sphere (V), the arm barrel (A) dropped from the bottom of the vertical sphere (V). In the case of the above shredding and production work using the above, the cost of external production and long distance transportation of construction materials can be reduced, and the occurrence of civil complaints can be reduced by minimizing the pollution of the surrounding area of the construction site.

In addition, the remaining arm buckles and other wastes left after being used are stored inside the tunnel by falling through the vertical hole after being passed through the tunnel (T) and immediately returned to the outside, so a separate yard is required around the construction site. It also adds the advantage of eliminating the possibility of complaints.

If the above method is not used, a separate transport path will have to be installed to transport the cancer barrel, which will damage the forest, but when applying the method according to the present invention, such a transport path is not required. Damage can be minimized.

In order to secure the free space required for the above aggregate crushing step and concrete production step, it is preferable to form a wider underground square (Tw) than the inner tunnel (Ti) at the bottom of the vertical sphere (V), such underground square (Tw) ) Is a large area in the center of the tunnel (T) after the completion of the construction, it can be used as an emergency parking in the tunnel, a connecting tunnel for return, an emergency shelter, in the case of a canal ship dock.

The vertical hole (V) can be used as a ventilation hole after the completion of the tunnel construction, and when an elevator is installed, it can be used as a useful tourist facility because it can move directly to the mountain without forest damage (no entry path). (Figure 30).

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

Claims

As a method of constructing the vertical sphere V by constructing a plurality of tubular bodies 10 in the vertical direction,

A positioning step of disposing a lower tube (10a) of the plurality of tubes (10) on the ground (1) the upper surface of the vertical hole of the vertical sphere (V);

An excavation and settlement step of digging the lower ground (1a) through the inside of the lower pipe (10a) to allow the lower pipe (10a) to settle downward;

And a connecting step of connecting the central portion 10b of the plurality of tubular bodies 10 to an upper end of the lower tubular body 10a.

By repeating the excavation step and the connection step, the plurality of pipes (10) is embedded in the ground (1), and the vertical sphere construction method using a pipe body to form a hollow inside the plurality of pipes (10).
The method of claim 1,

The tubular body 10 is a vertical sphere construction method using a tubular body, characterized in that formed by a material having strength and elasticity to withstand the blasting for the excavation of the inner lower ground (1a).
The method of claim 2,

The tubular body 10 is a vertical sphere construction method using a tubular body, characterized in that formed by steel.
The method of claim 1,

Vertical pipe construction method using a tubular body, characterized in that the tubular body 10 is a circular cross section.
The method of claim 1,

The lower end of the lower tube (10a) is a vertical sphere construction method using a tube, characterized in that the pointed structure.
The method of claim 1,

The connecting step

In the state where the upper end of the lower tube (10a) is exposed above the ground (1), the tube body characterized in that it comprises the step of welding the upper end of the lower tube (10a) and the lower end of the central tube (10b) Vertical sphere construction method using.
The method of claim 6,

Vertical sphere construction using a tubular body, characterized in that the groove for forming the welded portion 11 is formed on the outer edge of the upper end or the lower end of the tubular body 10 so as to minimize the degree of protrusion of the joint 12 formed by the welding. Way.
The method of claim 1,

The excavation and settlement step

The vertical sphere construction method using the tubular body, characterized in that it further comprises the step of filling the friction reducing material 20 in the area between the outer surface and the ground (1) of the tubular body (10).
The method of claim 8,

Vertical friction construction method using the tubular body, characterized in that the friction reducing material (20) comprises aggregate.
The method of claim 9,

The aggregate is a vertical sphere construction method using a tubular body, characterized in that it comprises a fine aggregate.
The method of claim 8,

The friction reducing material 20 is a vertical sphere construction method using a tubular body, characterized in that containing soil or clay.
The method of claim 10,

After completion of the embedding of the plurality of tubular body 10, the vertical sphere using the tubular body, characterized in that it further comprises a grouting step of injecting the grout 30 in the area between the outer surface and the ground (1) of the tubular body (10) Construction method.
The method of claim 1,

Vertical sphere construction method using a tubular body, characterized in that the reinforcing member 40 is installed to the outside in the through hole 13 formed in the tubular body (10).
The method of claim 13,

The through hole 13 of the tubular body 10 is closed by a temporary stopper 14,

After the completion of the embedding of the plurality of tubular bodies (10), the temporary stopper (14) is removed and the vertical sphere construction method using a tubular body, characterized in that to install the reinforcing material (40) through the through hole (13).
A method of constructing underground facilities using the vertical sphere construction method of any one of claims 1 to 14,

A working tunnel excavating step of digging a working tunnel 2 for accessing an area where an upper portion of the underground facility is to be located;

A work space forming step of forming a work space (3) so as to have a width wider than the width of the underground facilities in a region where an upper portion of the underground facilities is to be located;

Forming an underground facility by forming the vertical sphere (V) using the vertical sphere construction method on the bottom of the workspace (3);

Construction method of underground facilities using a pipe containing.
The method of claim 15,

After completion of embedding of the plurality of pipe bodies 10,

Construction method of the underground facility using the tubular body, characterized in that to form a lower closure portion 50 by pouring concrete to the lower trimming portion of the lower tube (10a).
The method of claim 16,

After completion of embedding of the plurality of pipe bodies 10,

Construction method of an underground facility using a tubular body, characterized in that to form an inner wall (60) by pouring concrete inside the plurality of tubular (10).
A vertical sphere construction step of constructing a vertical sphere (V) by the vertical sphere construction method of any one of claims 1 to 14 from the top to the underground region (t) where the tunnel is to be formed;

An inner tunnel construction step of constructing an inner tunnel Ti outward from a lower end of the vertical sphere V;

Tunnel construction method using a vertical sphere (V) containing.
The method of claim 18,

An outer tunnel construction step of constructing an outer tunnel (To) from the outside to the inside together with the vertical sphere construction step or the inner tunnel (Ti) construction step;

The through step of passing through the tunnel (T) by the meeting of the outer tunnel (To) and the inner tunnel (Ti);

Tunnel construction method using a vertical sphere (V), characterized in that it further comprises.
The method of claim 18,

A plurality of vertical sphere construction steps for constructing a plurality of vertical spheres (V);

A plurality of inner tunnel construction steps of constructing a plurality of inner tunnels Ti from the lower ends of the plurality of vertical spheres V, respectively;

The through step of penetrating the tunnel by the meeting of each inner tunnel (Ti);

Tunnel construction method using a vertical sphere (V), characterized in that it further comprises.
The method of claim 18,

Storing a female barrel (A) generated in the vertical sphere construction step adjacent to an upper trim of the vertical sphere (V);

An aggregate crushing step of crushing the arm barrel (A) to produce aggregate;

Concrete production step of producing shotcrete or lining concrete to be used in the inner tunnel (Ti) using the aggregate;

Tunnel construction method using a vertical sphere (V), characterized in that it further comprises.
The method of claim 21,

Drop the required amount of the arm block (A) to the lower end of the vertical sphere (V),

The aggregate crushing step and the concrete production step is a tunnel construction method using a vertical sphere (V), characterized in that made using the dropping arms (A) at the lower end of the vertical sphere (V).
The method of claim 22,

To secure the necessary space for the aggregate crushing step and concrete production step,

An underground square forming step of forming an underground square (Tw) wider than the inner tunnel Ti at a lower end of the vertical sphere (V);

Tunnel construction method using a vertical sphere (V), characterized in that it further comprises.