KR102161621B1 - Large diameter propulsion pipe with buckling prevention module and method for constructing concrete box using the same - Google Patents

Abstract

The present invention relates to a large-diameter propulsion pipe having a buckling preventing module, and a concrete box construction method using the same. According to the present invention, the large-diameter propulsion pipe having a buckling preventing module comprises: a propulsion pipe; a ring-shaped buckling preventing module; a reinforcing bar installed in the inner space of the propulsion pipe; Euroform installed in the inner space of the propulsion pipe; and a concrete box. According to the present invention, the large-diameter propulsion pipe having a buckling preventing module can prevent the propulsion pipe from being bent in advance.

Description

Large diameter propulsion pipe equipped with buckling prevention module and concrete box construction method using it {LARGE DIAMETER PROPULSION PIPE WITH BUCKLING PREVENTION MODULE AND METHOD FOR CONSTRUCTING CONCRETE BOX USING THE SAME}

The present invention relates to a large-diameter propulsion tube provided with a buckling prevention module and a concrete box construction method using the same.

More specifically, by providing a buckling prevention module protruding toward the central axis of the propulsion tube on the inner circumferential surface of the propulsion tube, it is possible to prevent the propulsion tube from bending by suppressing the occurrence of buckling. The present invention relates to a large-diameter propulsion pipe equipped with a buckling prevention module capable of preventing the occurrence of eccentricity in advance by detecting the occurrence of eccentricity in real time and correcting it to perform propulsion, and a concrete box construction method using the same.

In order to avoid interference with ground obstacles such as roads, railroads, rivers, buildings or cultural properties, and interference with underground obstacles such as sewage, water supply, power, heating, communication cables, etc. It means construction.

In recent years, with the development of Korea's industry and cities, it is difficult to apply the open-breaking method of digging the ground and laying pipes, and the demand for non-breaking construction methods such as pipe propulsion and waterway tunnels is rapidly increasing.

This propulsion method reduces the area of excavation compared to the excavation method, thereby reducing the amount of construction, noise, vibration, and dust caused by construction, reducing civil discomfort and civil complaints such as traffic obstacles, and improving the integrity of cultural properties and forests. And urban environment measures have excellent advantages.

In general, the propulsion method is the conventional excavation method using blasting and excavation equipment, the pipe roof method, the STS method, the large-diameter steel pipe multi-stage method, the front jacking method, the TRcM method, the NTR method, the TR&T method, the U- There are PRS method, etc., depending on the scope of application, it is divided into a large-diameter pipe propulsion method of D800 mm or more and a small-diameter pipe propulsion method of D700 mm or less. After installation of the propulsion pipe, it is classified into manpower type and mechanical type according to the internal soil excavation method.

Among them, the large-diameter pipe propulsion work mainly uses the TRdM (Tubular Roof construction Method) method or the NTR (New Tubular Roof Method) method. Here, in the TRdM method, the steel pipe for slab is installed in the transverse direction after propulsion pipe. , It refers to a method of cutting the lower part of the propulsion pipe to trench excavation on both sides of the wall to place the wall structure, and to install the floor structure after internal excavation.

In addition, in the NTR method, after excavating and pressing longitudinal steel pipes, the soil inside the steel pipe is excavated, a part of the steel pipe is removed to install a steel frame inside the steel pipe, and the structure is poured and cured. After that, it refers to a method of completing the structure by excavating the required cross section with a support.

These TRdM and NTR methods are methods capable of constructing large-sized steel pipes, and have the advantage of easy internal excavation and removal of excavated soil, and the advantage of precise construction using a laser measuring instrument.

However, due to the propulsion of large-diameter steel pipes, there is more ground relaxation than the small-diameter steel pipe propulsion method, and there are disadvantages in securing safety, such as concern for settlement.

In addition, there is a problem that the waterproof quality is insufficient due to the waterproofing of the steel plate by field welding.

In addition, thorough quality control is required when pouring concrete, and furthermore, there is a problem that it is difficult to secure quality control due to on-site casting.

Registered Patent Publication No. 10-1022382 (2011.03.08.)

The present invention was conceived to solve the above problems, and the problem to be solved in the present invention is that a buckling prevention module protruding toward the central axis of the propulsion pipe is provided on the inner circumferential surface of the propulsion pipe, thereby suppressing the occurrence of buckling and It is possible to prevent the phenomenon of bending in advance, and also, when propulsion of the propulsion pipe, by detecting the occurrence of eccentricity in real time, and correcting it so that the propulsion is carried out, a buckling prevention module is provided that can prevent the occurrence of eccentricity in advance. It is to provide a diameter propulsion pipe and a concrete box construction method using the same.

In order to solve the above problems, a large-diameter propulsion pipe provided with a buckling prevention module according to the present invention includes a propulsion pipe propelled in the ground; A ring-shaped buckling prevention module made of a closed curve coupled to the inner circumferential surface of the propulsion pipe in a form protruding outward; Rebar installed in the inner space of the propulsion pipe; A square tube-shaped flow path installed in the inner space of the propulsion tube; And a concrete box formed by pouring and curing concrete so that the reinforcing bar placed between the propulsion pipe and the flow path form is included, wherein the euro form is disassembled and demolished when the curing of the concrete box is completed. By providing this equipped large diameter propulsion tube, it is intended to solve the technical problem.

In addition, the concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention comprises: a trenching step of forming a propulsion base and a reaching base by excavating the ground at locations spaced apart from each other; Installation step of installing the propulsion rail and the eccentricity prevention module in the propulsion base; A pipeline laying step of operating a hydraulic cylinder provided in the eccentricity prevention module to propel the propulsion pipe provided with the buckling prevention module in a form protruding outward from the propulsion base toward the arrival base; Rebar installation step of reinforcing reinforcement in the inner space of the propulsion pipe; Euroform installation step of installing a square tube-shaped euroform in the inner space of the propulsion tube reinforced with reinforcement; Concrete placing step of curing by pouring concrete so that the reinforcing bar is included between the propulsion pipe and the euroform; When curing of the concrete is completed in the concrete placing step, the euroform dismantling step of dismantling and removing the euroform; An arrangement step of dismantling and arranging equipment of the propulsion base and the reach terminal; And a backfill step of backfilling the propulsion base and the reaching base; by providing a concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module, characterized in that it comprises, it is intended to solve the technical problem.

The present invention is provided with a buckling prevention module protruding toward the central axis of the propulsion pipe on the inner circumferential surface of the propulsion pipe, thereby improving resistance to bending to suppress the occurrence of buckling, and to prevent the propulsion pipe from bending. Holds.

In addition, by using a propulsion pipe with a buckling prevention function as a casing to form an integral square concrete structure without separate incision in the propulsion pipe, the stability of the structure construction work is increased and the pillar (temporary construction) in the existing concrete box construction process It has a remarkable effect of reducing construction period and cost as it does not require additional installation work such as support).

In addition, by providing a "T"-shaped reinforcement part protruding toward the central axis of the propulsion pipe on the outside of the buckling prevention module having a plate shape in cross section, it has a remarkable effect that can maximize resistance to bending. .

In addition, when propulsion of the propulsion pipe, an eccentricity prevention module is provided to detect and correct the occurrence of eccentricity in real time, but the eccentricity prevention module includes a plurality of hydraulic cylinders multi-bonded to the eccentricity prevention plate to propel the propulsion pipe. By controlling to be operated in the same way, it has a remarkable effect that can prevent the occurrence of eccentricity in advance.

1 is a schematic view showing a large-diameter propulsion tube provided with a buckling prevention module according to the present invention.
2 is a front cross-sectional view showing a propulsion pipe in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
3 is a side cross-sectional view showing a propulsion pipe in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
4 is a front cross-sectional view showing a buckling prevention module in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
5 is a side cross-sectional view showing the buckling prevention module in the large-diameter propulsion tube provided with the buckling prevention module according to the present invention.
6 is a side cross-sectional view showing another example of a reinforcement part in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
7 is a side cross-sectional view showing an example in which a joint is provided in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
Figure 8 is a perspective view showing a front end portion of the propulsion pipe provided with a soljang in the large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
9 is a side cross-sectional view showing an example in which the soljang slides toward the front end side of the propulsion pipe in the large-diameter propulsion pipe equipped with the buckling prevention module according to the present invention.
10 is a perspective view showing another example of a soljang in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
11 is a perspective view showing an eccentric prevention module in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
12 is a front view showing an eccentric prevention plate in a large diameter propulsion tube provided with a buckling prevention module according to the present invention.
13 is a view showing an example in which eccentricity is generated in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention, (a) is a view showing an example in which the propulsion tube is inclined downward to generate eccentricity, ( b) is a diagram showing an example in which the propulsion pipe is inclined to the side and eccentricity occurs.
14 is a view showing an example in which the eccentricity prevention module is operated in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
15 is a perspective view showing an example in which an auxiliary inclined member and an auxiliary hydraulic cylinder are provided in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
16 is a cross-sectional view showing an example in which the auxiliary hydraulic cylinder is operated in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention, (a) is an upper cross-sectional view, and (b) is a side cross-sectional view.
17 is a flow chart of a concrete box construction method using a large-diameter propulsion tube provided with a buckling prevention module according to the present invention.
Figure 18 is a side cross-sectional view showing the excavation step in the concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
Figure 19 is a side cross-sectional view showing an installation step in the concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
Figure 20 is a side cross-sectional view showing a pipe laying step in the concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
21 is a front cross-sectional view of a propulsion pipe showing a rebar installation step in a concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
22 is a front cross-sectional view of a propulsion tube showing a flow path form installation step in a concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
23 is a front cross-sectional view showing various embodiments in which a flow path form is installed in a concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.
24 is a front cross-sectional view of a propulsion pipe showing a concrete pouring step in a concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
25 is a front cross-sectional view of a propulsion pipe showing a step of dismantling a flow path in a concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.
26 is a cross-sectional side view of the ground showing the rearranging step and the backfill step in the concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.

Advantages and features of the embodiments of the present invention, and a method of achieving them will become apparent with reference to the embodiments described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

In describing the embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms or words used in the present specification and claims are terms defined in consideration of functions in the embodiments of the present invention, and should not be construed as being limited to a conventional or dictionary meaning, and the inventor In order to explain in the best way, based on the principle that the concept of a term can be appropriately defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, and thus various equivalents that can replace them at the time of application And it should be understood that there may be variations.

Hereinafter, prior to description with reference to the drawings, matters that are not necessary to reveal the gist of the present invention, that is, known configurations that can be obviously added by those skilled in the art are not shown or described in detail. Make it clear that it was not.

First, before describing various embodiments of the present invention in detail with reference to the accompanying drawings, the directions of components described in the following detailed description or shown in the drawings (for example, "before", "back", "left" , "Right", "top", "bottom", "top", "bottom", "lateral", "longitudinal", "front", "back", "one side", "other side", "inside" and " Terms such as "outside") do not simply indicate or mean that they should have a specific direction, and description of such a direction is made to facilitate explanation between components with reference to the accompanying drawings.

A large-diameter propulsion tube equipped with a buckling prevention module according to the present invention and a concrete box construction method using the same relates to a propulsion method using buckling prevention module (PMBP), and the center of the propulsion tube 100 on the inner circumferential surface of the propulsion tube 100 As the buckling prevention module 200 protruding toward the shaft is provided, the occurrence of buckling can be suppressed to prevent the propulsion pipe 100 from bending. In addition, when propulsion of the propulsion pipe 100, eccentricity occurs in real time. The present invention relates to a large-diameter propulsion pipe equipped with a buckling prevention module capable of preventing the occurrence of eccentricity in advance, and a concrete box construction method using the same, by detecting and correcting the propulsion.

Hereinafter, a large diameter propulsion tube provided with a buckling prevention module according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a large-diameter propulsion tube provided with a buckling prevention module according to the present invention.

The large-diameter propulsion pipe provided with the buckling prevention module according to the present invention is formed on the inner circumferential surface of the propulsion pipe 100 having a long length in the process of propelling a plurality of propulsion pipes 100 during large-diameter pipe propulsion construction. The anti-buckling module 200 in the form of protruding from the central axis of 100) is provided, thereby improving resistance to buckling so that propulsion is carried out, and the reinforcing bar 300 and the box-shaped flow path form inside the propulsion pipe 100 To form a concrete box 500 by installing 400 and placing concrete between the propulsion pipe 100 and the flow path form 400, the propulsion pipe 100, the buckling prevention module 200, and the reinforcing bar 300 , It is configured to include a euroform 400 and a concrete box 500.

In addition, the propulsion pipe 100 is guided by the propulsion rail 11 installed in the propulsion base 10, and propulsion (excavation) is made toward the reaching base 20. After forming the pipe, the concrete box 500 is formed therein by using it as a casing.

Here, the propulsion base 10 and the reaching base 20 are formed by excavating the ground at positions spaced apart from each other, as shown in FIG. 1, from the side to the propulsion base 10 to the reaching base 20 side. A plurality of propulsion pipes 100 are promoted so that a pipeline is formed in the ground.

Further, the propulsion base 10 may be temporarily installed with a propulsion rail 11 supporting the propulsion pipe 100 before propulsion, and the propulsion pipe 100 supported by the propulsion rail 11 is the propulsion rail 11 ), the propulsion is made toward the destination base 20.

Depending on the design conditions, the propulsion rail 11 is a roller-shaped rail, a ball-shaped rail, a track-shaped rail, or a plate with low friction so that the supported propulsion pipe 100 slides smoothly to achieve propulsion. Of course, it can be made in various forms such as rails.

2 is a front cross-sectional view showing a propulsion pipe in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention, and FIG. 3 is a side view showing a propulsion pipe in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention. It is a side sectional view.

As shown in the accompanying drawings, the propulsion pipe 100 is inserted into the excavated propulsion base 10 and is constructed in the ground as it is pushed to the target destination base 20. It is used to minimize problems such as generated noise, dust, ground subsidence and traffic obstacles.

The propulsion pipe 100 is formed in a cylindrical shape with an empty inside thereof, and provides a space to be carried out after the soil is introduced into the inner space.

At this time, a plurality of propulsion pipes 100 are installed in the ground, but the propulsion pipe 100 located at the front end may be provided with a device for propulsion or a device for performing various functions such as excavation and soil transport, and the like, All of the propulsion pipes 100 except for the propulsion pipe 100 may be formed in the same shape.

That is, in the large-diameter propulsion tube provided with the buckling prevention module according to the present invention, the tip reinforcing member 110 and the soljang 600, which will be described later, are configured in the propulsion tube 100 located at the front end of the plurality of propulsion tubes 100. It goes without saying that all of the plurality of propulsion pipes 100 may be provided with a buckling prevention module 200.

As shown in Figs. 2 and 3, the tip reinforcing member 110 is formed in a ring shape surrounding the outer surface along the outer circumferential surface at the tip of the propulsion pipe 100, when propulsion pipe 100, the propulsion pipe ( 100) performs a function of protecting the propulsion pipe 100 by minimizing abrasion or damage of the front end portion.

According to the design conditions, the tip reinforcing member 110 is provided along the outer circumferential surface of the propulsion pipe 100, and a taper whose outer diameter gradually decreases toward the front end of the propulsion pipe 100 may be formed.

Accordingly, the tip reinforcing member 110 has a shape that gradually narrows in width toward the tip side of the propulsion pipe 100 so that the propulsion pipe 100 minimizes friction so that the propulsion can be performed smoothly and flexibly.

4 is a cross-sectional front view showing the buckling prevention module in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention, and FIG. 5 is a buckling prevention module in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention. Figure 6 is a side cross-sectional view showing another example of a reinforcing part in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

On the other hand, when a plurality of propulsion pipes 100 are constructed, a buckling phenomenon may occur because the length of the long axis is relatively larger than that of the side section.

Accordingly, in the large-diameter propulsion pipe provided with the buckling prevention module according to the present invention, by providing at least one buckling prevention module 200 in each of the plurality of propulsion pipes 100, the resistance to bending is improved to suppress the occurrence of buckling. It has technical characteristics.

The buckling prevention module 200 is coupled to the inner circumferential surface of each of the propulsion pipes 100 to be constructed in a plurality of protruding forms.

When described with reference to FIG. 4, the buckling prevention module 200 is formed in a shape protruding from the inner circumferential surface of the propulsion tube 100 toward the central axis of the propulsion tube 100, and is configured in a ring shape made of a closed curve.

Accordingly, the anti-buckling module 200 performs a function of reinforcing the thickness of the outer wall of the propulsion pipe 100 to a thicker, as shown in FIG. 5 to improve durability due to the earth pressure applied from the outside, and the propulsion pipe 100 It can prevent part of the product from being damaged or crushed.

At this time, one or more buckling prevention modules 200 may be provided on the inner circumferential surface of each of the propulsion pipes 100.

That is, one or more pairs of buckling prevention modules 200 may be provided on an inner circumferential surface of one propulsion pipe 100, and a plurality of buckling prevention modules 200 may be provided at a predetermined distance from each other.

Preferably, when a plurality of buckling prevention modules 200 are provided in one propulsion tube 100, the spacing between the plurality of buckling prevention modules 200 may be the same, and furthermore, one propulsion tube The gap between the buckling prevention module 200 formed in 100 and the buckling prevention module 200 formed in the other propulsion tube 100 is also provided in one propulsion tube 100, a plurality of buckling prevention modules 200 It can be made equal to the spacing between them.

Depending on the design conditions, referring to FIG. 5, a reinforcing part 210 protruding toward the central axis of the propulsion pipe 100 may be further provided outside the buckling prevention module 200.

The reinforcing part 210 includes a ring-shaped rib 211 coupled to the outer circumferential surface of the buckling prevention module 200 and a ring-shaped plate 212 provided at an end of the rib 211.

Preferably, the reinforcing part 210 may also be formed in a ring shape made of a closed curve so as to be coupled to the entire outer circumferential surface of the buckling prevention module 200.

The reinforcing part 210 configured including the rib 211 and the plate 212 will be described with reference to FIG. 5, and has a cross section in the form of "T", and the propulsion pipe 100 together with the buckling prevention module 200 ) Can maximize the resistance against bending.

Furthermore, since the cross section is made in a "T" shape, the use of materials can be minimized, and buckling occurrence is prevented by maximizing the resistance to bending of the propulsion pipe 100, so that stable propulsion work can be achieved. can do.

" 형태 또는 "ㅁ" 형태로 이루어질 수 있다.Meanwhile, in FIG. 5, an example in which the cross section of the reinforcing part 210 is in a “T” shape is shown, but depending on the design conditions, as in FIG. 6, “

It may be in the form of "or "ㅁ".

" 형태로 이루어질 수 있다. 이때, 개구된 부분은 좌굴방지모듈(200)의 외주면에 결합되어 구성될 수 있다.This will be described in detail with reference to FIG. 6, for example, as shown in (a) of FIG. 6, which is formed in a ring shape coupled to the outer circumferential surface of the buckling prevention module 200, but the cross section is "

In this case, the open portion may be configured by being coupled to the outer peripheral surface of the buckling prevention module 200.

As another example, as shown in (b) of FIG. 6, it may be formed in a ring shape coupled to the outer peripheral surface of the buckling prevention module 200, but the cross section may be formed in a "ㅁ" shape.

That is, of course, the reinforcing part 210 may be formed in various forms.

7 is a side cross-sectional view showing an example in which a joint is provided in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

Depending on the design conditions, when a plurality of propulsion pipes 100 are connected to each other and constructed, a joint 220 may be provided on an inner circumferential surface of a portion where the propulsion pipe 100 and the propulsion pipe are connected.

Here, the joint 220 has the same configuration as the buckling prevention module 200, but differs only in the installed position.

That is, the buckling prevention module 200 is provided on the inner circumferential surface of one propulsion pipe 100, respectively, but the joint 220 may be provided on the inner circumferential surface of a portion to which the pair of propulsion pipes 100 are connected to each other.

At this time, as shown in FIG. 7, the joint 220 has a long cross-section based on the longitudinal direction of the long axis of the propulsion pipe 100 and is formed in a relatively thin form, but a pair of propulsion pipes ( 100) The ratio of the lengths coupled to the inner circumferential surface of the propulsion pipe 100 located at the front end side is composed of 6 to 7, and is coupled to the inner circumferential surface of the propulsion pipe 100 located at the rear end of the pair of propulsion tubes 100 The ratio of the length to be made may be about 3 to 4.

For example, when the length of the joint 220 is made of about 500mm, in a pair of propulsion pipes 100, the length of the joint 220 coupled to the inner circumferential surface of one propulsion pipe 100 located at the front end side Is made of about 300mm to 350mm, and the length of the joint 220 coupled to the inner circumferential surface of the other propulsion tube 100 located at the rear end may be about 150mm to 200mm. That is, as shown in Fig. 7, the ratio of the length of the joint 220 coupled to the inner circumferential surface of one propulsion pipe 100 located at the front end and the joint coupled to the inner circumferential surface of one propulsion pipe 100 located at the front end (220) The ratio of length may be about 6.5: 3.5.

This is because the earth pressure transmitted from the upper side to the lower side of the plurality of propulsion pipes 100 located closer to the front end and the earth pressure at the front where the propulsion pipe 100 is propelled simultaneously affects the buckling phenomenon and Since the eccentric phenomenon may appear stronger than the propulsion pipe 100 located at the rear end, the joint 220 that performs a reinforcing function in the process of connecting the propulsion pipe 100 and the propulsion pipe 100 is located at the rear end. Since the ratio of the length protruding from the propulsion pipe 100 to the front end side is formed longer, resistance to buckling and eccentricity can be further improved due to an increase in the contact area with the propulsion pipe 100 located at the front end side.

Depending on the design conditions, the joint 220 may be combined with a reinforcing portion 210 including a rib 211 and a plate 212 as shown in FIG. 7.

Hereinafter, a reinforcing bar 300, a flow path form 400 and a concrete box 500 for forming a concrete structure will be described.

The reinforcing bar 300 is installed in the inner space of the propulsion pipe 100 that has been propelled and constructed, and is installed between the flow path form 400 and the inner circumferential surface of the propulsion pipe 100 to be described later.

These reinforcing bars 300 may be reinforced in a large number in the direction of the long axis in which the propulsion pipe 100 is propelled, and further, to be installed in a grid form through an additional reinforcing bar to connect the reinforcing bars 300 reinforced in the long axis direction to each other. I can.

Preferably, it may be installed so as not to interfere with the space in which the concrete box 500 to be described later is formed. That is, it may be installed in the inner space of the propulsion pipe 100 except for the space for the concrete box 500 is formed.

Accordingly, since the reinforcing bar 300 is laid in the concrete box 500 to be described later, it increases the bearing capacity and tensile force of the concrete box 500 and performs a function of improving stiffness.

The flow path form 400 is installed inside the propulsion pipe 100 performing a casing function, and is made in the form of a square box with an empty inside, and preferably, a form communicated in the long axis direction in which the propulsion pipe 100 is propelled. Consists of

The flow path form 400 is to form a concrete structure in the form of a square tube by constructing a concrete box 500 to be described later, and performs a formwork function for pouring concrete.

That is, when the installation of the flow path form 400 inside the propulsion tube 100 is completed, concrete is poured and cured between the inner circumferential surface of the propulsion tube 100 and the flow path form 400 to form a concrete box 500 to be described later.

At this time, in the concrete to be poured, not only the reinforcing bar 300 is cultured inside, but also the buckling prevention module 200 and the reinforcing part 210 are disposed, so that the stiffness of the concrete box 500 can be maximized.

Concrete box 500 refers to a concrete structure formed by pouring and curing concrete in the space between the inner circumferential surface of the propulsion pipe 100 and the flow path 400, and performs a formwork function when curing of the concrete box 500 is completed. By removing the old flow path form 400, the concrete box 500 in the form of a square tube is formed inside the propulsion pipe 100 performing a casing function.

Since the concrete box 500 is formed in the space between the propulsion pipe 100 and the flow path 400 having a length in the long axis direction, an integral concrete box 500 can be formed, and thus, the concrete to be divided and assembled Compared to the structure, there is a very excellent advantage in terms of strength and durability.

Furthermore, by forming an integral concrete structure, it is possible to increase the stability of the existing concrete structure because longitudinal sag does not occur.

Figure 8 is a perspective view showing a front end portion of the propulsion pipe provided with a soljang in the large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

9 is a side cross-sectional view showing an example in which the soljang slides toward the front end side of the propulsion pipe in the large-diameter propulsion pipe equipped with the buckling prevention module according to the present invention.

Depending on the design conditions, a plurality of soljang 600 protruding toward the front end of the propulsion pipe 100 may be provided on an upper portion of the front end side of the propulsion pipe 100.

The soljang 600 is provided at the upper end of the propulsion pipe 100, and protrudes toward the tip side of the propulsion pipe 100, and includes a soljang guide 610.

As shown in the accompanying drawings, a plurality of these soljang 600 may be provided, but supported by the soljang guide 610 and may be provided to slide in the propulsion direction of the propulsion pipe 100.

Accordingly, the soljang 600 has a structure that protrudes toward the front end of the propulsion pipe 100, so that safety accidents caused by soil or rockfall falling from the top when propulsion of the propulsion pipe 100 can be prevented in advance.

At this time, the plurality of soljang 600 may be formed in an arc shape so as to correspond to the inner circumferential surface of the propulsion pipe 100 as a whole, as shown in FIG. 8.

Depending on the design conditions, a plurality of soljang 600 may be provided so as to be fitted with each other.

For example, one side of the soljang 600 has a groove (not shown in the drawing) dug inward in the same direction as the longitudinal direction of the long axis of the soljang 600, and the other side is the long axis length of the soljang 600 Unevenness (not shown in the drawing) protruding outward in the same direction as the direction may be formed.

Thus, the pair of soljang 600 is fitted with the concave and convex groove, each of the plurality of soljang 600 may be configured to be able to slide in the longitudinal direction of the long axis, by the configuration of the concave groove and the concave-convex By blocking the gap between the soljang 600, it is possible to prevent the soil or the like falling into the gap from flowing into the inside of the propulsion pipe 100.

In addition, depending on the design conditions, the size and number of the soljang 600 provided in a plurality may be configured differently according to the diameter of the propulsion tube 100.

For example, in the case of the propulsion pipe 100 having a small diameter, the size of the soljang 600 is formed small to correspond to the propulsion pipe 100 having a small diameter and may be made of 4 to 6, and as another example, a propulsion pipe having a large diameter In the case of (100), the size of the soljang 600 is formed large to correspond to the propulsion pipe 100 having a large diameter, and may be formed of 6 to 9.

The soljang guide 610 is provided on the upper end of the propulsion pipe 100 and performs a function of supporting a plurality of soljang 600.

At this time, the soljang guide 610 may be provided with one or more pairs so as to be spaced apart from each other in the direction in which the propulsion pipe 100 is propelled, and as shown in FIG. 9, it may be provided in a pair spaced apart from each other.

Each of these soljang guides 610 may have a shape corresponding thereto so as to support a plurality of soljang (600).

That is, it is made in an arc shape so as to correspond to the inner circumferential surface of the propulsion pipe 100, but both ends may be configured to be coupled to the inner circumferential surface of the propulsion pipe 100.

Thus, the inner circumferential surface of the propulsion pipe 100 and the arc-shaped portion of the soljang guide 610 are spaced apart from each other to form a space penetrating forward and backward therebetween, and a plurality of soljang 600 are inserted into the space to be supported. Make it possible.

According to the design conditions, a plurality of soljang 600 supported by the soljang guide 610 are provided to slide to the front and rear sides of the propulsion pipe 100, respectively, and a hydraulic jack that controls the slide movement of the soljang 600 (Not shown) may be provided at the rear end of the soljang 600.

Further, the hydraulic jack may be configured to operate one cylinder, and the hydraulic jack configured to operate one cylinder may be configured to slide in an arc shape along the inner circumferential surface of the propulsion pipe 100.

Accordingly, the hydraulic jack may be moved to the side of the soljang 600 to be slid to the front end of the soljang 600 provided in a plurality of pieces so that the soljang 600 may slide to the front and rear sides of the propulsion pipe 100.

According to this configuration, a plurality of soljang 600 is slid and moved toward the front end of the propulsion pipe 100 by the operation of a hydraulic jack, so that a plurality of soljang 600 is adapted to various environmental requirements such as the shape of the terrain and the ground condition. ) Each is to be moved to slide toward the front end of the propulsion pipe (100).

Thus, it is possible to prevent safety accidents caused by soil or rockfall falling from the top of the propulsion pipe 100 in advance.

10 is a perspective view showing another example of a soljang in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.

On the other hand, as shown in Figure 8, the soljang 600 is made in a shape having a height that is relatively smaller than the width of the cross section so as to be formed in an arc shape corresponding to the inner circumferential surface of the propulsion pipe 100, Accordingly, the soljang 600 may be provided with a bending preventing member 620 protruding toward the center of the propulsion pipe 100, as shown in FIG. 10.

This bend preventing member 620 will be described with reference to FIG. 10, as the cross-section is made in a shape having a height relatively longer than the width of the horizontal, so that resistance against bending that may be generated by earth pressure acting from the top to the bottom Can be maximized.

At this time, as shown in FIG. 10, the bending preventing member 620 shows an example protruding toward the central axis of the propulsion pipe 100 in the middle part of the arc-shaped soljang 600, but depending on the design conditions, The arc-shaped soljang 600 may be configured in a form biased to the left or right.

For example, when the bend prevention member 620 is configured to protrude from the right end of the soljang 600 to the central axis of the propulsion pipe 100, the cross section consisting of the soljang 600 and the bend prevention member 620 is'ㄱ 'Can be made to form.

11 is a perspective view showing an eccentricity prevention module in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention, FIG. 13 is a view showing an example in which eccentricity is generated in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention, (a) is a view showing an example in which the propulsion tube is inclined downward and eccentricity is generated , (b) is a view showing an example in which the propulsion pipe is inclined to the side and eccentricity is generated, and FIG. 14 is a view showing an example of operating the eccentricity prevention module in a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention to be.

Depending on the design conditions, the large-diameter propulsion tube provided with the buckling prevention module according to the present invention may further include an eccentricity prevention module 700 for preventing eccentricity of the propulsion tube 100.

The eccentricity prevention module 700 is installed in the propulsion base 10 and is provided at the rear end of the propulsion pipe 100, and performs a function to propel the propulsion pipe 100 in the direction of the reaching base 20, level It is configured to include a device 710, an eccentric prevention plate 720 and a plurality of hydraulic cylinders 730.

The leveler 710 is provided on the propulsion rail 11 of the propulsion base 10 or the eccentricity prevention plate 720 to be described later, and is in close contact with the propulsion pipe 100 to propel the propulsion tube 100 ( 720) performs a function of detecting whether or not is eccentric.

Such a leveler 710 is configured using a laser leveler 710 that is generally used, but whether the plate-shaped eccentricity prevention plate 720 to be described later is inclined forward or backward from the propulsion rail 11 or to the left or right It is desirable to install it in a position where you can see if it is inclined.

" 형태로 이루어질 수 있다.The eccentric prevention plate 720 is made in the form of a plate erected vertically, as shown in FIGS. 11 and 12, and the upper side is opened "

"Can be made in the form.

This eccentric prevention plate 720 is made in the form of a plate, and is in close contact with the rear end of the propulsion tube 100 having a circular cross section, and is propelled by the operation of the hydraulic cylinder 730 to be described later, thereby stably applying the force to propel It is to be stably transmitted to the propulsion pipe 100 through the eccentric prevention plate 720.

At this time, the eccentricity prevention plate 720 is provided in the form of a plurality of blocks in the direction in which the propulsion pipe 100 is propelled, and each of the eccentricity prevention plates 720 in the block shape may be configured to be coupled to each other.

Thus, even if the distance between the hydraulic cylinder 730 and the propulsion pipe 100 is increased by providing a plurality of eccentric prevention plates 720 made of a plate shape to be connected to each other, the propulsion pipe 100 and the hydraulic cylinder 730 It is possible to stably transmit the propulsion force by the operation of the hydraulic cylinder 730 to the propulsion pipe 100 through a plurality of eccentricity prevention plates 720 provided in the.

Depending on the design conditions, the eccentricity prevention plate 720 may be installed to slide in the forward and rearward directions on the propulsion rail 11.

For example, the lower end of the eccentricity prevention plate 720 may be supported by the propulsion rail 11 so as to smoothly move the slide.

At this time, at the time of initial design, the angle between the propulsion rail 11 and the eccentricity prevention plate 720 may be configured to be formed at a right angle.

Thus, when the propulsion pipe 100, when eccentricity occurs, the eccentricity prevention plate 720 in close contact with the propulsion pipe 100 generates an eccentricity based on the propulsion rail 11, and this is the leveler 710 By making it detectable through, it is possible to take action according to the occurrence of eccentricity.

Preferably, the propulsion pipe 100 and the eccentricity prevention plate 720 may be configured to be temporarily coupled and fixed with the eccentricity prevention plate 720 in the process of propelling the propulsion pipe 100.

This, when propulsion of the propulsion pipe 100, when eccentricity is generated, the eccentricity prevention plate 720 fixed in close contact with the propulsion pipe 100 by the generated eccentricity so that the eccentricity is generated together, the leveler 710 It makes it possible to recognize whether eccentricity occurs through

For example, a locking jaw (not shown in the drawing) protruding outward is formed at the rear end of the propulsion tube 100, and a corresponding locking ring (not shown in the drawing) is provided on the eccentricity prevention plate 720, the locking By selectively engaging the locking ring on the jaw, the propulsion pipe 100 and the eccentric prevention plate 720 may be selectively fixed or removed from each other.

On the other hand, the eccentric prevention plate 720 is configured such that a plurality of hydraulic cylinders 730 to be described later are multi-joined, and a plurality of hydraulic cylinders 730 are configured to be selectively operated, respectively, or configured to be operated simultaneously, or part of In the operating state, only the remaining portions may be configured to be operated, or configured to be sequentially operated one by one, or a plurality of groups may be formed as one group, and each group may be sequentially operated.

Here, the position at which the plurality of hydraulic cylinders 730 are multi-joined will be described with reference to FIG. 12, and a plurality of positions are formed on the left, right and lower sides of the eccentric prevention plate 720, and the first point 721, 2 points (722), the third point (723), the fourth point (724), the fifth point (725), the sixth point (726), the seventh point (727) and the eighth point (728) I can.

Correspondingly, the hydraulic cylinders 730 may also be composed of eight.

The operation of the eccentric prevention plate 720 and the plurality of hydraulic cylinders 730 will be described in detail with reference to FIGS. 13 and 14.

First, as shown in Figure 13 (a), when propulsion of the propulsion pipe 100, when the propulsion pipe 100 is inclined downward due to the earth pressure applied from the upper side to the lower side to generate eccentricity, the propulsion pipe ( The eccentricity prevention plate 720 fixed in close contact with 100) also generates eccentricity, so that the upper side is inclined toward the front end side rather than the lower side.

That is, as shown in (a) of FIG. 13, when the upper side of the eccentricity prevention plate 720 is inclined toward the front end and eccentricity is generated, it is sensed through the leveler 710 so that the operation of the hydraulic cylinder 730 is performed. can do.

For example, a pair of hydraulic cylinders 730 joined to the first point 721 and the second point 722 of the plurality of hydraulic cylinders 730 are first operated, and then, the third point ( 723) and a pair of hydraulic cylinders 730 joined to the fourth point 724 are operated. Next, after the pair of hydraulic cylinders 730 joined to the fifth point 725 and the sixth point 726 are operated, finally, the seventh point 727 and the eighth point 728 A pair of hydraulic cylinders 730 to be joined are operated.

Accordingly, the first point 721 and the second point 722 formed on the lower side of the eccentric prevention plate 720 in the process of transferring the force by the operation of the plurality of hydraulic cylinders 730 to the propulsion pipe 100 First, and then, to propel the third point 723 and the fourth point 724 formed on the upper side of the eccentricity prevention plate 720, and then, in the lower middle portion of the eccentricity prevention plate 720 Propelling the formed fifth point 725 and the sixth point 726, and finally formed between the first point 721 and the third point 723 corresponding to the middle side of the eccentric prevention plate 720 By pushing the seventh point 727 and the eighth point 728 formed between the second point 722 and the fourth point 724, the propulsion pipe 100 is lowered by the earth pressure applied from the upper side to the lower side. It is possible to prevent the problem of being inclined and eccentric.

In addition, by first pushing the first point 721 and the second point 722 formed in the lower edge portion of the eccentric prevention plate 720, the force by the operation of the hydraulic cylinder 730 is propulsion pipe 100 By first transmitting to the lower side of the propulsion pipe 100, the front end side of the propulsion pipe 100 generates a force that is lifted upward, so that the influence of the earth pressure applied from the upper side to the lower side can be minimized during the propulsion pipe 100.

In addition, as shown in Figure 13 (b), when propulsion of the propulsion pipe 100, when the propulsion pipe 100 is inclined to the side to generate eccentricity, it is in close contact with the propulsion pipe 100 to prevent eccentricity fixed The plate 720 also generates eccentricity and is inclined to the side.

That is, as shown in (b) of FIG. 13, when the side of the eccentric prevention plate 720 is inclined toward the front end and eccentricity is generated, this is sensed through the leveler 710 so that the operation of the hydraulic cylinder 730 is performed. can do.

For example, when the left side of the eccentricity prevention plate 720 is inclined toward the front end side and the right side is inclined toward the rear end side, a second point formed on the right side of the eccentricity prevention plate 720 among a plurality of hydraulic cylinders 730 ( 722), the fourth point 724, the sixth point 726, and the hydraulic cylinder 730 joined to the eighth point 728 is operated first, and then, the first point 721, the third point The hydraulic cylinder 730 joined to the fifth point 725 and the seventh point 727 is operated.

Accordingly, the second point 722, the fourth point 724, which are formed on the right side of the propulsion tube 100 in the process of transferring the force by the operation of the plurality of hydraulic cylinders 730 to the propulsion tube 100, The sixth point (726) and the eighth point (728) are promoted first, followed by the first point (721), the third point (723), the fifth point (725) and the seventh point (727). By doing so, it is possible to prevent the problem of being inclined to the right and being eccentric.

According to the design conditions, when the propulsion pipe 100 is inclined downward and at the same time as it is inclined to the side to generate eccentricity, a plurality of hydraulic cylinders 730 may be configured to operate in response thereto.

For example, when the propulsion pipe 100 is inclined downward to generate eccentricity, and the left side of the propulsion pipe 100 is inclined toward the front end side and the right side toward the rear end side, among a plurality of hydraulic cylinders 730 A hydraulic cylinder 730 joined to the second point 722, the fourth point 724, the sixth point 726 and the eighth point 728 formed on the right side of the eccentric prevention plate 720 is formed on the left side The first point 721, the third point (723), the fifth point (725) and the seventh point (727) to be operated earlier than the hydraulic cylinder 730, but the second point (722), Among the hydraulic cylinders 730 that are joined with the 4 points 724, the 6th points 726 and the 8th points 728, the hydraulic cylinder 730 which is joined to the second point 722 is operated first, and then , After the hydraulic cylinder 730 bonded to the fourth point 724 is operated, the hydraulic cylinder 730 bonded to the sixth point 726 is operated, and finally, the eighth point 728 ) To be joined to the hydraulic cylinder 730 is operated.

In this process, for example, when the eccentricity generated by the propulsion pipe 100 is tilted downward, the hydraulic cylinder 730 is formed on the left side of the first point 721, the third point 723, and the fifth point. If the hydraulic cylinder 730 joined to the 725 and the seventh point 727 is operated at the same time or, as another example, the propulsion pipe 100 is tilted downward and the eccentricity generated is not completely resolved, the first point (721), the third point (723), the fifth point (725) and the hydraulic cylinder 730 that is joined to the first point 721 among the hydraulic cylinders 730 joined to the seventh point (727) is the first After being operated, the hydraulic cylinder 730 bonded to the third point 723 is operated, and then, the hydraulic cylinder 730 bonded to the fifth point 725 is operated, and finally The hydraulic cylinder 730 joined to the seventh point 727 is operated.

According to this configuration, the eccentricity prevention plate 720 has a plurality of points so that the plurality of hydraulic cylinders 730 are respectively joined, as shown in FIG. 14, the order in which the plurality of hydraulic cylinders 730 and the points are joined. Or, by configuring the number to be controlled according to the eccentricity sensed through the leveler 710, it is possible to cope with the eccentricity generated in real time when propulsion of the propulsion pipe 100, as well as to minimize the occurrence of eccentricity and a stable propulsion work You can let this happen.

FIG. 15 is a perspective view showing an example in which an auxiliary slope member and an auxiliary hydraulic cylinder are provided in a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention, and FIG. 16 is a large-diameter propulsion provided with a buckling prevention module according to the present invention. A cross-sectional view showing an example of an auxiliary hydraulic cylinder operating in a pipe, (a) is an upper cross-sectional view, and (b) is a side cross-sectional view.

Depending on the design conditions, the eccentricity prevention plate 720 will be described with reference to FIGS. 15 and 16, the auxiliary slope member 729 in the form of an inclined surface formed by being depressed inward on each of the lower side and the side surface may be provided.

This auxiliary inclined member 729 is formed on each of the lower and left and right sides of the eccentric prevention plate 720, as shown in FIG. 16, toward the front end toward the outer side from the center side of the eccentricity prevention plate 720. It can be made in an inclined shape.

At this time, as shown in the accompanying drawings, the auxiliary slope member 729 is shown in a form recessed into the inside of the eccentricity prevention plate 720, but depending on the design conditions, the thickness of the eccentricity prevention plate 720 is reduced. In the case of construction, a protrusion having an inclined surface may be formed to protrude outside the eccentricity prevention plate 720.

In addition, the auxiliary hydraulic cylinder 731 may be provided to be operated in a form perpendicular to the inclined surface of the auxiliary inclined member 729 when described with reference to FIG. 16.

Accordingly, when the propulsion pipe 100 is inclined downward or laterally due to external factors such as earth pressure acting in the ground during propulsion, when eccentricity is generated, the auxiliary slope member 729 is assisted in the inclined surface. By operating the hydraulic cylinder 731, it is possible to minimize the inclination of the propulsion pipe 100 against the eccentricity with a fast and strong force.

At this time, in the large-diameter propulsion pipe equipped with the buckling prevention module according to the present invention, it is shown that a total of three auxiliary slope members 729 are formed on the lower, left and right sides of the eccentric prevention plate 720, respectively, but the lower and the side Of course, a plurality of each can be formed.

According to this configuration, the large-diameter propulsion tube provided with the buckling prevention module according to the present invention is provided with a buckling prevention module 200 protruding from the central axis of the propulsion tube 100 on the inner circumferential surface of the propulsion tube 100, thereby bending It is possible to prevent the occurrence of buckling by improving resistance to the propulsion pipe 100, and to prevent the propulsion pipe 100 from bending.

In addition, by using the propulsion pipe 100 having a buckling prevention function as a casing to form an integral square concrete structure without separate incision in the propulsion pipe 100, the stability of the structure construction work and the existing concrete box are increased. In the construction process, additional installation work such as pillars (temporary support) is not required, so construction period and cost can be reduced.

In addition, by providing a "T"-shaped reinforcement part 210 protruding toward the central axis of the propulsion pipe 100 on the outside of the buckling prevention module 200 having a plate shape in cross section, the maximum resistance to bending Can be improved.

In addition, when propulsion of the propulsion tube 100, an eccentricity prevention module 700 for detecting and correcting the occurrence of eccentricity in real time is provided, but the eccentricity prevention module 700 is an eccentricity for propulsion of the propulsion tube 100 By controlling the plurality of hydraulic cylinders 730 to be multi-bonded to the prevention plate 720 to be selectively operated, the occurrence of eccentricity can be prevented in advance.

Hereinafter, a method for constructing a concrete box using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention will be described.

First, it should be noted that the overlapping parts of the contents already described in FIGS. 1 to 16 are not described.

17 is a flow chart of a concrete box construction method using a large-diameter propulsion tube provided with a buckling prevention module according to the present invention.

A concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention includes a concrete box 500 in the form of a square tube in the inner space of the propulsion tube 100 by using the propulsion tube 100 as a casing. Regarding the construction method for forming, the excavation step (S10), the installation step (S20), the pipe laying step (S30), the rebar installation step (S40), the euroform installation step (S50), the concrete pouring step (S60), It consists of including a Euroform dismantling step (S70), a cleanup step (S80) and a backfill step (S90).

Figure 18 is a side cross-sectional view showing the excavation step in the concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.

The excavation step (S10) is a step of excavating the starting point and the end point for forming a pipe by propelling the propulsion pipe 100, that is, the propelling base 10 and the reaching base 20 spaced apart from each other.

In this excavation step (S10), the propulsion base 10 means a starting point for propelling a plurality of propulsion pipes 100, and provides a space in which the propulsion rail 11 and the eccentricity prevention module 700 are installed.

That is, the propulsion pipe 100 may be formed by digging with sufficient margin to secure a working space according to propulsion.

In addition, it is obvious that the depth of the propulsion base 10 and the reaching base 20 must be dug to an appropriate depth according to the depth of the pipeline buried in the ground, so it is not particularly limited.

Figure 19 is a side cross-sectional view showing an installation step in the concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

The installation step (S20) is a step of installing the propulsion rail 11 and the eccentricity prevention module 700 to the propulsion base 10 formed in the excavation step (S10).

" 형태로 이루어진 편심방지판(720)에 다수 개의 유압실린더(730)가 서로 이격되어 다중 접합되도록 구성될 수 있다.At this time, the installed eccentricity prevention module 700 may be configured to detect in real time the occurrence of eccentricity due to the inclination of the propulsion pipe 100, which is provided with the leveler 710, and notifies the user of this, The upper side is open"

A plurality of hydraulic cylinders 730 are spaced apart from each other and may be configured to be multi-bonded to the eccentric prevention plate 720 in the form of ".

Preferably, the eccentricity prevention plate 720 is configured to be multi-joined with a plurality of hydraulic cylinders 730 to be described later, but the plurality of hydraulic cylinders 730 are configured to be selectively operated, respectively, or configured to be operated simultaneously or partially In the non-operating state, only the remaining portions may be operated, or may be configured to be sequentially operated one by one, or a plurality of units may be formed into one group and each of the groups may be sequentially operated.

Here, a plurality of positions at which the plurality of hydraulic cylinders 730 are multi-bonded are formed on the left, right and lower sides of the eccentric prevention plate 720, the first point 721, the second point 722, and the third It may be formed of a point 723, a fourth point 724, a fifth point 725, a sixth point 726, a seventh point 727 and an eighth point 728, and a plurality of hydraulic cylinders ( 730 may be composed of a total of eight corresponding to a plurality of points.

Accordingly, when propulsion of the propulsion pipe 100 through the leveler 710, when eccentricity is detected, the order of joining and joining with a selected point among a plurality of points among the plurality of hydraulic cylinders 730, the hydraulic cylinder to be joined By controlling the number of 730 differently, it is possible not only to cope with the eccentricity generated in real time, but also to minimize the occurrence of eccentricity so that a stable propulsion operation can be achieved.

Figure 20 is a side cross-sectional view showing a pipe laying step in the concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

The pipe laying step (S30) is a step of sequentially pushing (excavating) a plurality of propulsion pipes 100 from the propulsion base 10 to the reaching base 20 and connecting them to form a pipe.

" 형태의 편심방지판(720)은 다수 개의 유압실린더(730)가 다중 접합되도록 구비되되, 다중 접합되는 유압실린더(730)가 편심 발생 여부에 따라 동작이 제어되도록 함으로써, 유압실린더(730)의 동작에 의한 힘이 추진관(100)으로 전달되는 과정에서 편심 발생을 최소화하여 안정적인 추진 작업이 이루어지도록 할 수 있다.This pipe laying step (S30) is in the process of propelling the propulsion pipe 100 and the eccentric prevention plate 720 by operating the hydraulic cylinder 730 "

"The type of eccentricity prevention plate 720 is provided so that a plurality of hydraulic cylinders 730 are multi-joined, and the operation of the hydraulic cylinder 730 to be multi-joined is controlled depending on whether eccentricity occurs, so that the hydraulic cylinder 730 It is possible to minimize the occurrence of eccentricity in the process of transmitting the force by the motion to the propulsion pipe 100 so that a stable propulsion work can be achieved.

At this time, the pipe laying step (S30) may include welding the buckling prevention module 200 to the inner circumferential surface of the propulsion pipe 100 when propulsion of the propulsion pipe 100.

The step of welding the anti-buckling module 200 is a function of reinforcing the thickness of the outer wall of the propulsion pipe 100 by welding and coupling the ring-shaped anti-buckling module 200 made of a closed curve to the inner peripheral surface of the propulsion pipe 100 By performing this, it is possible to improve the durability due to the earth pressure applied from the outside, minimize the buckling phenomenon, and prevent a part of the propulsion pipe 100 from being damaged or crushed.

Depending on the design conditions, the reinforcing portion 210 protruding toward the central axis of the propulsion pipe 100 outside the buckling prevention module 200 may be welded to be coupled.

Since the reinforcing part 210 has a cross-section in a "T" shape, the use of materials can be minimized, and the resistance to the buckling phenomenon of the propulsion tube 100 together with the buckling prevention module 200 is maximized. It is possible to ensure stable propulsion work.

21 is a front cross-sectional view of a propulsion pipe showing a rebar installation step in a concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

Reinforcing bar installation step (S40) is a step of installing the reinforcing bar 300 in the inner space of the propulsion tube 100 made of a circular cross section when the construction of the propulsion pipe 100 is completed in the pipe laying step (S30).

At this time, the reinforcing bar 300 may be reinforced in the long axis direction in which the propulsion pipe 100 is propelled, and furthermore, the reinforcing bar 300 is installed in a grid form through an additional reinforcement to connect the reinforcing bars 300 reinforced in the long axis direction to each other Can be.

Preferably, the reinforcing bar 300 is installed in a space in which concrete is placed in order to form the concrete box 500.

That is, the reinforcing bar 300 may be installed to be located only in the inner space of the concrete to be poured.

22 is a front cross-sectional view of a propulsion pipe showing a flow path form installation step in a concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention, and FIG. 23 is a buckling prevention module provided with a buckling prevention module according to the present invention. It is a front cross-sectional view showing various embodiments in which the euroform is installed in a concrete box construction method using a large-diameter propulsion pipe.

When the installation of the reinforcing bar 300 in the reinforcing bar installation step (S50) is completed, the step of installing the square tube-shaped flow path form 400 in the inner space of the propulsion tube 100 performing a casing function in the euroform installation step (S50). to be.

Here, the euroform 400 performs a formwork function for pouring concrete, and may have various structures such as wood or plastic.

According to the design conditions, the flow path form 400 formed in the shape of a square tube may be provided with a support 410 to reinforce a portion vertically connected to a corner portion, as shown in FIG. 22.

Such a support 410 supports the corner portion of the flow path form 400 to prevent crushing or breakage of the flow path form 400 of a square section by the concrete being poured, and the flow of the flow path form 400 until the poured concrete is completely cured. Allows the rectangular cross-sectional shape to be maintained.

Meanwhile, in FIG. 22, an example in which the shape of the flow path form 400 installed in the flow path form installation step S50 is square is shown, but may be formed in a rectangular or trapezoidal shape as in FIG. 23 according to design conditions.

This will be described with reference to FIG. 23, for example, as shown in (a) of FIG. 23, the upper and lower lengths are long and the left and right lengths are formed in a rectangular shape, or are not shown in the drawing. The lower length may be short and the left and right sides may be formed in a rectangular shape.

As another example, as in (b1) of FIG. 23, the upper end is formed in a form protruding to one side, and the lower end is a trapezoid formed in a form protruding to the other side, or as in Fig. 23 (b2), the length of the upper end is It can be formed in various trapezoidal shapes, such as a trapezoidal shape that is longer than the length of.

This is because the shape of the flow path 400 is variously installed according to various environmental requirements such as topographic shape and ground condition, and as a result, the shape of the concrete box 500 constructed in the concrete pouring step (S60) to be described later is various. You can make it happen.

24 is a front cross-sectional view of a propulsion pipe showing a concrete pouring step in a concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

Concrete pouring step (S60) is a concrete box 500 in the form of a square tube by pouring concrete in the space between the propulsion pipe 100 constructed in the pipe laying step (S30) and the euroform 400 installed in the euroform installation step (S50). ) Is formed.

In this concrete pouring step (S60), concrete is poured into the inner space of the propulsion pipe 100 through a separate transfer pipe.

Thereafter, when the concrete pouring is completed, a concrete structure is formed. At this time, the concrete curing time is determined in consideration of various environmental requirements such as the site location and season, and is usually cured for more than 24 hours.

25 is a front cross-sectional view of a propulsion pipe showing a step of dismantling a flow path in a concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to the present invention.

The euroform dismantling step (S70) is a step of dismantling and dismantling the euroform 400, which has functioned as a form, when curing of the concrete is completed in the concrete placing step (S60).

At this time, the support 410 installed before disassembling the euroform 400 is first disassembled, and then the euroform 400 is disassembled.

26 is a cross-sectional side view of the ground showing the rearranging step and the backfill step in the concrete box construction method using a large-diameter propulsion tube equipped with a buckling prevention module according to the present invention.

The arrangement step (S80) is a step of moving the facilities installed in the propulsion base 10 and the reaching base 20 to the outside for propulsion work to organize them.

That is, the propulsion rail 11, the disassembled flow path form 400, the eccentricity prevention module 700, and the like are moved to the ground, and the tip-side propulsion pipe 100 that has reached the arrival base 20 is removed, and a backfill step ( It is possible to backfill the propulsion base 10 and the reach base 20 through S90).

The backfill step (S90) is a step of completing the construction by backfilling the propulsion base 10 and the reaching base 20 that were excavated in the dug step (S10).

According to this configuration, the concrete box construction method using a large-diameter propulsion tube provided with a buckling prevention module according to the present invention is when propulsion of the propulsion tube 100 performing a casing function, the propulsion tube 100 through the buckling prevention module 200 ) Is prevented from bending, and operating conditions such as the number of times, order, and number of simultaneous operation of the plurality of hydraulic cylinders 730 that are multi-bonded to the eccentricity prevention plate 720 are detected in real time through the leveler 710. By controlling the occurrence of eccentricity, it is possible to prevent the occurrence of eccentricity.

In addition, by forming a square tube-shaped concrete box 500 in the inner space of the propulsion pipe 100 where buckling and eccentricity do not occur, it is possible to construct an integrated concrete structure, thereby increasing the stability of the construction work and the existing concrete box. There is an advantage of reducing the construction period and cost as it does not require additional installation work such as pillars (temporary support) during the construction process.

In the above description, various embodiments of the present invention have been presented and described, but the present invention is not necessarily limited thereto, and those of ordinary skill in the technical field to which the present invention pertains, within the scope of the technical spirit of the present invention. It can be seen that branch substitution, modification, and change are possible.

10: propulsion base 11: propulsion rail
20: reach base
100: propulsion pipe 110: tip reinforcing member
200: buckling prevention module 210: reinforcement
211: rib 212: plate
220: joint
300: rebar
400: Euroform 410: support
500: concrete box
600: Soljang 610: Soljang Guide
620: bending prevention member
700: eccentricity prevention module
710: level machine 720: eccentric prevention plate
721: first point 722: second point
723: 3rd point 724: 4th point
725: 5th point 726: 6th point
727: 7th point 728: 8th point
729: auxiliary slope member
730: hydraulic cylinder 731: auxiliary hydraulic cylinder

Claims (10)

A propulsion pipe 100 propelled in the ground;
A ring-shaped buckling prevention module 200 made of a closed curve coupled to the inner circumferential surface of the propulsion pipe 100 in a form protruding outward;
Reinforcing bars 300 installed in the inner space of the propulsion pipe 100;
A channel form 400 in the form of a square tube installed in the inner space of the propulsion tube 100; And
Consisting to include; a concrete box 500 formed by pouring and curing concrete so that the reinforcing bar 300 disposed between the propulsion pipe 100 and the flow path 400 is included,
The euroform 400 is
When curing of the concrete box 500 is completed, it is characterized in that it is dismantled and removed,
The buckling prevention module 200 is
Consisting, including; a reinforcing part 210 in the form of protruding toward the central axis of the propulsion pipe 100 on the outside,
The reinforcement part 210 is
A ring-shaped rib 211 coupled to the outer circumferential surface of the reinforcing portion 210; And
Consists of including; a ring-shaped plate 212 provided at the end of the rib 211,
The rib 211 and the plate 212 are characterized in that the cross section is formed in a "T" shape,
The buckling prevention module 200 is
Consisting including; a joint 220 coupled to the inner peripheral surface of the portion of the pair of propulsion pipe 100 is connected to each other,
The joint 220 is
It is configured in a ring shape made of the same closed curve as the buckling prevention module 200,
Among the pair of propulsion tubes 100, the ratio of the lengths coupled to the inner circumferential surface of the propulsion tube 100 located at the front end is made of 6 to 7, and the propulsion tube located at the rear end of the pair of propulsion tubes 100 ( 100) is characterized in that the ratio of the length coupled to the inner circumferential surface consists of 3 to 4,
Consisting to include; an eccentricity prevention module 700 for preventing the occurrence of eccentricity in the process of propelling the propulsion pipe 100,
The eccentricity prevention module 700 is
A leveler 710 for sensing whether eccentricity of the propulsion tube 100 is generated;
An eccentric prevention plate 720 provided at the rear end of the propulsion tube 100 to propel the propulsion tube 100; And
It is configured to include; a plurality of hydraulic cylinders 730 that are multi-joined to the eccentric prevention plate 720,
The propulsion tube is
A locking jaw protruding outward is formed at the rear end
The eccentricity prevention plate 720 is
There is provided a locking protrusion selectively locking the locking jaw,
A large-diameter propulsion tube provided with a buckling prevention module, characterized in that by selectively locking the locking protrusions on the locking jaws, the propulsion pipe 100 and the eccentric prevention plate 720 are selectively fixed or removed from each other.
delete delete The method according to claim 1,
A large-diameter propulsion tube provided with a buckling prevention module, characterized in that it comprises a; soljang (600) provided on the top side of the propulsion tube (100).
The method of claim 4,
The soljang 600 is
Consisting of being supported by the soljang guide 610 provided on the top side of the propulsion pipe 100,
A large-diameter propulsion tube provided with a buckling prevention module, characterized in that a plurality of slides are provided to each slide in the propulsion direction of the propulsion tube 100.
delete The method according to claim 1,
The eccentricity prevention plate 720 is
The vertical surface is made in a cross-sectional shape with an open upper side,
A first point 721 formed at a lower left corner of the eccentric prevention plate 720;
A second point 722 formed at the lower right corner of the eccentric prevention plate 720;
A third point 723 formed at the upper left corner of the eccentric prevention plate 720;
A fourth point 724 formed at an upper right corner of the eccentric prevention plate 720;
A fifth point 725 formed between the first point 721 and the second point 722 and formed at the lower left of the center axis of the eccentricity prevention plate 720;
A sixth point 726 formed between the first point 721 and the second point 722 and formed at the lower right of the center axis of the eccentricity prevention plate 720;
A seventh point 727 formed between the first point 721 and the third point 723; And
An eighth point 728 formed between the second point 722 and the fourth point 724; is formed,
The first point (721) to the eighth point (728) is a large-diameter propulsion tube provided with a buckling prevention module, characterized in that configured to be joined to each of a plurality of hydraulic cylinders (730).
The method of claim 7,
The eccentricity prevention module 700 is
When the propulsion pipe 100 and the eccentricity prevention plate 720 are inclined downward to cause eccentricity,
The first point 721 and the second point 722 formed on the lower side of the eccentricity prevention plate 720 are first promoted, and then, a third point 723 formed on the upper side of the eccentricity prevention plate 720 And the fourth point 724, and then, the fifth point 725 and the sixth point 726 formed in the lower middle portion of the eccentricity prevention plate 720 are promoted, and finally, the seventh point ( Large diameter propulsion tube provided with a buckling prevention module, characterized in that the propulsion 727) and the eighth point (728).
The method of claim 7,
The eccentricity prevention module 700 is
When the propulsion pipe 100 and the eccentricity prevention plate 720 are inclined to the left and eccentricity occurs,
The first point 721, the third point 723, the fifth point 725, and the seventh point 727 formed on the left side of the eccentric prevention plate 720 are first promoted, and then the second point Promote (722), fourth point (724), sixth point (726) and eighth point (728), or
When the propulsion pipe 100 and the eccentricity prevention plate 720 are inclined to the right and eccentricity occurs,
The second point 722, the fourth point 724, the sixth point 726 and the eighth point 728 formed on the right side of the eccentricity prevention plate 720 are first promoted, and then, the first point (721), a third point (723), a fifth point (725) and a large-diameter propulsion tube provided with a buckling prevention module, characterized in that to propel the seventh point (727).
In the concrete box construction method using a large-diameter propulsion pipe equipped with a buckling prevention module according to one of claims 1, 4, 5, 7, 8, 9,
The excavation step (S10) of forming the propulsion base 10 and the reaching base 20 by excavating the ground at positions spaced apart from each other;
An installation step (S20) of installing the propulsion rail 11 and the eccentricity prevention module 700 to the propulsion base 10;
By operating the hydraulic cylinder 730 provided in the eccentricity prevention module 700, the propulsion pipe 100 provided with the buckling prevention module 200 in a form protruding outward on the inner circumferential surface from the propulsion base 10 (20) a pipe laying step (S30) to propel in the direction;
Reinforcing bar installation step (S40) of reinforcing the reinforcing bar 300 in the inner space of the propulsion pipe 100;
A flow path form installation step (S50) of installing a square tube-shaped flow path form 400 in the inner space of the propulsion pipe 100 in which the reinforcing bar 300 is arranged;
Concrete pouring step (S60) of pouring and curing concrete so that the reinforcing bar 300 is included between the propulsion pipe 100 and the flow path 400;
When curing of the concrete is completed in the concrete placing step (S60), the flow path form dismantling step (S70) of dismantling and removing the flow path form (400);
An arrangement step (S80) of dismantling and arranging the equipment of the propulsion base 10 and the reaching base 20; And
A concrete box construction method using a large-diameter propulsion pipe having a buckling prevention module, comprising: a backfill step (S90) of backfilling the propulsion base 10 and the reaching base 20.

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