WO2015005582A1

WO2015005582A1 - Hull propulsion method using guide-shaped steel

Info

Publication number: WO2015005582A1
Application number: PCT/KR2014/004741
Authority: WO
Inventors: 김동우; 김동수
Original assignee: Kim Dong Woo; Kim Dong Su
Priority date: 2013-07-11
Filing date: 2014-05-27
Publication date: 2015-01-15
Also published as: CN105358796A; KR101324173B1; CN105358796B

Abstract

The present invention relates to a hull propulsion method using guide-shaped steel, which reinforces the ground by inserting a protective steel pipe, enables precise construction for an underground tunnel using the guide steel formed within a steel pipe and connected with a hull when a concrete hull is propelled, and can minimize an influence on the upper ground. The hull propulsion method comprises the steps of: a) constructing a propulsion base and an arrival base; b) forming a steel pipe composite according to construction locations of an outer wall and an upper slab in the hull; c) inserting the guide-shaped steel into the steel pipe composite; d) connecting an end of the guide-shaped steel to the hull when the hull is manufactured in the propulsion base; e) propelling the hull; f) releasing the hull and the end of the guide-shaped steel from each other; and g) filling mortar between an outer surface of the hull and an inner surface of the steel pipe.

Description

Ship propulsion method using guide section steel

The present invention relates to a method for constructing an underground tunnel, and more specifically, to press the protective steel pipe to reinforce the ground and then to push the concrete enclosure, the underground tunnel is precisely formed by using a guide beam formed in the steel pipe and joined to the enclosure. The present invention relates to a hull propulsion method using guide section steel, which can be constructed and can minimize the influence on the upper ground.

One of the preferred methods when constructing underground tunnels, the Front Jacking Method, maintains toffee without digging the ground where roads are located to reduce the impact on roads and rivers located above the underground tunnel. It is one of the non-opening methods for constructing underground tunnels.In order to build a work base before and after the tunnel section, construct a pipe loop on the outside of the tunnel section, excavate the inside of the pipe loop, and then proceed with the prefabricated enclosure. Underground tunnels will be built.

Since the front jacking method pre-fabricates the concrete enclosure, it is easy to control the quality of the enclosure, and since the concrete forming the enclosure has already reached a predetermined strength as a whole, it is possible to secure the safety of the structure and the worker during the tunnel construction.

The R & C method is an improvement of the above-mentioned front jacking method, and the cross section of the enclosure is made to match the cross section of the pipe loop to be constructed for protection. Can be used and pipe loops can be reused.

However, the front jacking method and the R & C method may affect the upper ground as the soil is pushed in the direction in which the housing is propelled by the frictional force acting between the outer surface and the ground during the propulsion of the enclosure and requires a very large traction force. And, there is a problem that the end of the enclosure may be damaged by the concentrated load acting on the end of the enclosure during towing.

In order to solve this problem, the applicant has filed a 'method of construction of underground structures by the towing of the enclosure and the structure of the enclosure used therein' of the application number 10-2013-0036228 (unpublished). The present invention, as shown in Figure 1, to form a rectangular tube composite 60 having a space portion 61 of the same shape as the cross-section of the enclosure 100 in the work zone where the underground structure will be located and After installing the roller in the space 61 to check the exact position while pushing the pre-fabricated enclosure 100, and then to remove the soil inside the lower plate and the housing 100 of the square tube complex 60 to construct the underground structure As a method, the inside of the rectangular tube composite 60 is empty and the outer surface and the ground of the housing 100 are separated by the rectangular tube composite 60 so that the propulsion of the housing 100 is compared with the conventional front jacking method and the R & C method. Very little frictional force is acting and thus the propulsion of the enclosure 100 can be minimized even with a small propulsion force and the influence on the upper ground can be minimized.

However, the present invention is possible only when the cross section of the enclosure 100 has a single closed space. When the enclosure is divided by an inner wall and has a plurality of closed spaces, the inner wall may pass through the towing of the enclosure. Excavation of the position corresponding to the inner wall should be preceded so that the advantages of the present invention cannot be maximized. In addition, when the size of the prefabricated enclosure is large, there is a limit to maintaining the exact position of the enclosure only by the roller in the rectangular tube composite.

The present invention is to solve the problems of the prior art as described above, even when the concrete enclosure has a complex cross-section so that a small friction force can act to promote the enclosure with a minimum propulsion force, precise construction is possible to have a high quality underground The purpose is to provide a hull propulsion method using guide beams to build tunnels.

According to a preferred embodiment of the present invention for solving the above problems, in the hull propulsion method for constructing an underground tunnel, a) constructing a propulsion base in front of the section in which the underground tunnel is to be constructed, the construction of the reaching base behind ; b) forming a steel pipe composite by forming a plurality of steel pipes in accordance with the position where the outer wall of the enclosure and the upper slab will be constructed, and removing the earth and sand inside the steel pipe; c) inserting the guide section steel into the steel pipe composite after installing a roller in the steel pipe composite according to the position where the guide section steel is to be inserted; d) fabricating the enclosure at the propulsion base, such that the end of the guide section is joined to the enclosure; e) pushing the enclosure while removing portions of the steel pipe that interfere with the enclosure and soil in front of the enclosure; f) disengaging the enclosure and the guide section steel ends; g) filling the mortar between the outer surface of the housing and the inner surface of the steel pipe is provided, characterized in that it comprises a guide propulsion method using a guide-shaped steel.

According to another embodiment of the present invention, the steel pipe cross section is provided with a hull propulsion method using a guide-shaped steel, characterized in that the rectangular or circular.

According to another embodiment of the present invention, in step c), the end of the guide section steel is inserted into the steel pipe composite so as to protrude toward the propulsion base side, and the coalescence is manufactured so that the end of the guide section steel protruding in step d) is embedded in the enclosure. Provided is a hull propulsion method using a guide section steel.

According to another embodiment of the present invention, in the step d), the enclosure is made so that the connecting hardware is embedded in the end, characterized in that joined to the guide-shaped steel by the connecting hardware, the propulsion method using the guide-shaped steel is Is provided.

According to another embodiment of the present invention, there is provided a housing propulsion method using a guide steel, characterized in that the roller is attached to the lower surface or the upper and lower surfaces of the guide-shaped steel.

According to another embodiment of the present invention, at the same time as the steps of c) to d), the process of forming the borehole or at least any one of the square tube or the circular steel tube according to the position of the lower slab of the enclosure There is provided a housing propulsion method using a guide section steel, characterized in that the progress.

According to still another embodiment of the present invention, a roller propulsion method using a guide-shaped steel is provided at a lower portion of the lower slab of the enclosure at a lower portion of the pit hole, the square tube, and the circular steel tube. .

According to another embodiment of the present invention, in the step e), the propulsion method using the guide-shaped steel, characterized in that further comprising the step of installing the support pile to the front of the housing is removed soil.

According to another embodiment of the present invention, in the step d), the enclosure is manufactured so that the connecting hardware is embedded in the end, characterized in that the end reinforcing member is further installed by the connecting hardware, the propulsion of the enclosure using the guide beam A method is provided.

According to still another embodiment of the present invention, the guide beam is provided with a propulsion method using a guide beam, characterized in that bonded to the enclosure through the end reinforcing member.

The present invention can easily propel the enclosure to a desired position by the guide-shaped steel formed in the same direction as the direction in which the enclosure is propelled in the protective steel pipe when propelling the enclosure to construct the underground tunnel.

And when the roller is further installed in the steel pipe, it is possible to reduce the friction force generated between the outer surface of the housing and the inner surface of the steel pipe by the roller can reduce the driving force required to propel the enclosure.

Since part of the steel pipe and the soil of the front surface of the enclosure are removed during propulsion of the enclosure, it is possible to easily propel even when the enclosure has a plurality of spaces closed by the inner wall. When the soil is unstable due to the part of steel pipes and the soils removed from the front of the enclosure, and the ground formed by removing the soil, the guide beam acts like a beam to ensure the safety of workers and the stability of the underground tunnel under construction. It can be secured.

In addition, it is possible to facilitate the earth and sand removal work on the front of the enclosure by constructing the pit, etc., and when the part of the underground tunnel is a soft ground can be used to prevent the ground collapse. A roller may be installed at the lower part of the pit, such as the propulsion work of the enclosure.

An end reinforcement member may be further installed at the end of the enclosure to prevent the enclosure from being destroyed by the impact that may occur during the concentrated load during propulsion and removal work such as earth and sand.

1 is an explanatory diagram illustrating a construction method of an underground tunnel according to the prior art.

Figure 2 is an explanatory diagram showing the propulsion method of the enclosure according to the present invention in order.

3 is a perspective view of a steel pipe used in the housing propulsion method according to the present invention.

4 is a perspective view when the steel pipe is formed in a bundle.

5 is a cross-sectional view of a steel pipe composite used in the propulsion method of the enclosure according to the present invention.

6 is a cross-sectional view of the enclosure used in the enclosure propulsion method according to the present invention.

7 is a first embodiment of the method for joining the enclosure and the guide-shaped steel in the enclosure propulsion method according to the present invention.

8 is a second embodiment of the method for joining the enclosure and the guide-shaped steel in the enclosure propulsion method according to the present invention.

9 and 10 are cross-sectional views when the end reinforcing material is further provided at the end of the housing used in the housing propulsion method according to the present invention.

11 is a cross-sectional view of a masonry hole or the like used in the housing propulsion method according to the present invention.

The propulsion method according to the present invention is to build an underground tunnel, comprising the steps of: a) constructing a propulsion base in front of a section in which the underground tunnel is to be constructed and a reaching base behind; b) forming a steel pipe composite by forming a plurality of steel pipes in accordance with the position where the outer wall of the enclosure and the upper slab will be constructed, and removing the earth and sand inside the steel pipe; c) inserting the guide section steel into the steel pipe composite after installing a roller in the steel pipe composite according to the position where the guide section steel is to be inserted; d) fabricating the enclosure at the propulsion base, such that the end of the guide section is joined to the enclosure; e) pushing the enclosure while removing portions of the steel pipe that interfere with the enclosure and soil in front of the enclosure; f) disengaging the enclosure and the guide section steel ends; g) filling the mortar between the outer surface of the enclosure and the inner surface of the steel pipe.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in detail. However, in describing the present invention, when the technical concept of the present invention is obscured or obscured by describing the known configuration in detail, the description of the known configuration will be omitted.

Figure 2 shows the enclosure propulsion method according to the present invention in order.

The propulsion method according to the present invention comprises the steps of: a) constructing a propulsion base (P) in front of the section in which the underground tunnel is to be constructed, and a reaching base (A) behind; b) forming a plurality of steel pipes 310 in accordance with the position where the outer wall 230 and the upper slab 210 of the enclosure 200 will be constructed, and remove the soil inside the steel pipe 310 to form a steel pipe composite 300 step; c) inserting a guide section steel (400) into the steel pipe composite (300); d) manufacturing a housing 200 in the propulsion base (P), wherein the end of the guide section steel (400) is bonded to the housing (200); e) pushing the enclosure 200 while removing portions of the portions forming the steel pipe 310 and interfering with the enclosure 200 and soil in front of the enclosure; f) releasing the junction between the enclosure 200 and the guide section steel 400; g) filling the mortar between the outer surface of the housing 200 and the inner surface of the steel pipe 310.

Below will be described in detail step by step the propulsion method of the enclosure.

a) constructing a propulsion base (P) in front of the section in which the underground tunnel will be constructed and a reaching base (A) behind; (FIG. 2A)

Before entering the construction of an underground tunnel, first secure a working space. The working space is formed before and after the section where the underground tunnel is to be constructed. The working space in front of the underground tunnel is called the propulsion base (P) and the working space behind is called the reaching base (A).

The names of the propulsion base (P) and the reach base (A) is named based on when the enclosure 200 is manufactured in the work space in front of the underground tunnel, when the present invention will be described below the propulsion base (P). In the following description, a case in which the enclosure 200 is manufactured and pushed toward the reach base A will be described as a basic example, but the contents of the present invention are not limited by the terms 'promotion' and 'reach', and the enclosure 200 is provided. May be manufactured at the arrival base (A) or at both the propulsion base (P) and the reaching base (A).

The size of the propulsion base (P) is to the extent that the manufacturing operation of the enclosure 200 made in step d) can be easily made, the size of the reach base (A) is the propulsion of the enclosure 200 made in step e) To the extent that work can be done easily.

The propulsion base (P) and the reaching base (A) are generally constructed by excavating the ground vertically, so that the earth wall (W) for supporting the earth pressure to prevent the ground from collapsing during the formation of each base and the construction of the underground tunnel Provide construction.

b) forming a plurality of steel pipes 310 in accordance with the position where the outer wall 230 and the upper slab 210 of the enclosure 200 will be constructed, and remove the soil inside the steel pipe 310 to form a steel pipe composite 300 step; (FIG. 2B)

A steel pipe composite 300 is formed to reinforce the ground of the section in which the underground tunnel is constructed and to facilitate the operation of the enclosure 200 in the step e).

Steel pipe 310 constituting the steel pipe composite 300 is formed in a square or circular cross section.

When the cross section of the steel pipe 310 is a quadrangle, the steel pipe 310 is formed on the same side lip of the upper and

lower plates

311 and 312 and the upper and

lower plates

311 and 312 having the ribs R at both ends in the width direction. The upper and lower ends are respectively composed of side plates 313 are coupled. 3 illustrates a specific form of such a steel pipe 310. The reference steel pipe 310A shown in FIG. 3A is a steel pipe 310 which is first typed to form a steel pipe composite 300. As shown in FIG. It has a straight rib (R) and a plurality of side plates 313 are formed without gaps in the longitudinal direction of the steel pipe (310). And the connection steel pipe 310B shown in (b) of FIG. 3 is a steel pipe that serves to expand the steel pipe composite 300 by being typed to the left and right of the reference steel pipe 310A after the reference steel pipe 310A is typed. As 310, one side of the lip is straight and the side plate 313 coupled thereto is formed tightly, while the other side of the lip is formed with a hook (H) and the side plate 313 having a small width is formed at intervals.

When the connecting steel pipe 310B is typed, the side plate 313 of the reference steel pipe 310A located on the side facing the connecting steel pipe 310B is removed one by one, and the reference steel pipe 310 is connected to the hook of the connecting steel pipe 310B. Since a straight lip of 310A is inserted, it is possible to type so that the connecting steel pipe 310B is connected at the same angle as the reference steel pipe 310A.

As shown in FIG. 3, the reference steel pipe 310A and the connecting steel pipe 310B may be formed as one tube and may be typed one by one. However, as shown in FIG. It is formed in the form of a tube bundle can be reduced by the effort to type the steel pipe 310 by the type of steel pipe 310 of the tube bundle type.

Steel pipe composite 300 is formed by forming a plurality of steel pipe 310 is formed in accordance with the cross-sectional shape of the underground tunnel, that is, the cross-sectional shape of the enclosure 200, the outer wall 230 and the upper slab 210 of the enclosure 200 ) Is formed to pass through.

5 illustrates three embodiments of the steel pipe composite 300 according to the cross-sectional shape of the enclosure 200. FIGS. 5A and 5B illustrate a case in which an outer end surface of the enclosure 200 is a quadrangle. 5 (a) is a case where the steel pipe composite 300 is made of a steel pipe 310 having a rectangular cross section, and FIG. 5 (b) is a case where the steel pipe composite 300 is made of a steel pipe 310 having a circular cross section. . FIG. 5C is a steel pipe composite 300 in the case where the outer surface of the enclosure 200 is semi-circular, and when forming the steel pipe composite 300 as shown in FIG. 5C, an inverted trapezoidal cross section is shown. It may be desirable to use a steel pipe 310 or a circular steel pipe having a shape.

c) inserting a guide section steel (400) into the steel pipe composite (300); ((C) of FIG. 2)

Guide-shaped steel in the same direction as the direction of the steel pipe 310 in the empty space formed by the steel pipe composite 300, that is, the portion corresponding to the cross-sectional position of the outer wall 230 and the upper slab 210 of the housing 200. Insert 400.

The guide section steel 400 is bonded to the enclosure 200 produced in step d) serves to hold the direction during the propulsion of the enclosure 200, the enclosure 200 has the same direction as the direction to be propelled Since the formed steel pipe 310 is formed long in the same direction as the longitudinal direction of the steel pipe 310, the housing 200 is prevented from protruding obliquely.

The guide beam 400 may be inserted only in a portion of the underground tunnel or may be inserted through the underground tunnel, depending on the length of the section of the underground tunnel. When the section length of the underground tunnel is short and the guide section steel 400 penetrates the underground tunnel and its front end is formed up to the end portion of the reaching base A side of the steel pipe composite 300, the guide section steel visually from the reaching base A ( Since it is possible to observe 400, it is easy to check whether the enclosure 200 is being pushed straight, and even if the propulsion angle of the enclosure 200 is misaligned, it can be corrected immediately.

The propulsion of the enclosure 200 using the guide section steel 400 in this way not only exerts an effect that the underground tunnel can be precisely constructed, thereby completing a structure having excellent performance, and the enclosure 200 is a steel pipe. Since the straight line within the composite 300 does not generate friction with the inner surface of the steel pipe composite 300 is also effective to propel the enclosure 200 with a small propulsion force.

On the other hand, before inserting the guide member steel 400 in the steel pipe composite 300, the roller 314 may be additionally installed inside the steel pipe composite 300 in accordance with the position to be inserted into the guide member steel 400.

The roller 314 is installed to be in contact with the upper surface of the upper flange and the lower surface of the lower flange of the guide member steel 400, to facilitate the insertion operation of the guide member steel 400 and the pushing operation of the housing 200.

Such a roller may be installed in the steel pipe composite 300 before the guide member steel 400 is inserted as described above. Alternatively, the roller may be attached to a lower surface or an upper / lower surface of the guide member steel 400 to guide the guide member. Insertion of the shaped steel 400 may be made easy. When the roller is attached to the guide section steel (400) in this way, since the attachment work of the roller can be made when manufacturing the guide section steel (400), shortening the air by not occupying the roller attachment step separately in the propulsion method according to the present invention. It is possible.

The guide section steel 400 is formed so as not to protrude or protrude toward the propulsion base (P) according to the bonding method with the enclosure 200, which will be described in detail in step d).

d) manufacturing a housing 200 in the propulsion base (P), wherein the end of the guide section steel (400) is bonded to the housing (200); ((D) of FIG. 2)

The enclosure 200 to be the main structure of the underground tunnel is manufactured.

The enclosure 200 may be formed in various forms as long as the outer wall 230 and the upper slab 210 of the enclosure 200 may be inserted into the steel pipe composite 300 formed in step b). That is, the upper and

lower slabs

210 and 220 and the outer wall 230 may be formed to have only one closed space. As shown in FIG. It may be formed to have a space.

As the front end of the enclosure 200, the guide section steel 400 is joined as mentioned above.

7 is a first embodiment of the method of joining the enclosure 200 and the guide section steel 400, when inserting the guide section 400 in the preceding step c) so that the rear end is not completely inserted into the guide section steel The rear end of the (400) is to protrude to the propulsion base (P) side. And the end of the guide section steel 400 protruding toward the propulsion base (P) side at the time of manufacturing the enclosure 200 to be embedded in the enclosure 200 made of concrete. Accordingly, the guide section steel 400 and the enclosure 200 are very firmly bonded. The end of the guide section steel 400 is embedded in the enclosure 200 to form a stud (S) to anchor the function can be made to be more firmly bonded to the guide section steel 400 and the enclosure 200.

When the section length of the underground tunnel is short, the front end portion of the guide section steel 400 is inserted to protrude toward the reaching base A side, and the front end portion of the guide section steel 400 is manufactured while manufacturing the enclosure 200 at the reaching base A. 200). In this case, it is possible to shorten the construction period because the insertion work of the guide member steel 400 and the preparation preparation work for the enclosure 200 can be performed at the same time.

8 is a second embodiment of the method of joining the enclosure 200 and the guide section steel 400, when manufacturing the enclosure 200 buried the connecting hardware 250, such as anchor bolts in the front end of the enclosure 200 And join the guide section steel 400 and the housing 200 through the connecting hardware (250).

When joining the enclosure 200 and the guide section steel 400 through the connecting hardware 250, the removal of the guide section steel 400 made after the propulsion of the enclosure 200 is completed can be easily made.

When the end reinforcement member 600 is further installed at the end of the enclosure 200, the junction of the enclosure 200 and the guide section steel 400 may be made in a different manner than in the first and second embodiments. It will be described in the section related to the end reinforcing member 600.

Between step b) and step c), when the roller 314 is further provided inside the steel pipe composite 300, the housing 200 on the outer surface of the housing 200 facing the roller 314 It is preferable to form the rail 260 in the longitudinal direction of. The rail may be formed in any form, such as a, I, H-shaped steel, if the surface in contact with the roller 314 forms a part of the outer surface of the enclosure 200, as shown in Figure 6, using C-shaped steel Thus, the outer surface of the web is in contact with the roller 314 and both flanges are preferably embedded in the enclosure 200 to enable the anchoring function.

When pushing the enclosure 200, the end of the enclosure 200 made of concrete may be destroyed by a concentrated load occurring at the end of the enclosure 200 or an impact generated when the soil removal in front of the enclosure 200 occurs. In order to the end of the housing 200, the end reinforcing member 600 may be further formed.

The end reinforcement member 600 is manufactured by embedding the connection hardware 250 at the end of the enclosure 200 and then installed in the enclosure 200 through the connection hardware 250.

When the end reinforcement member 600 is further installed at the end of the enclosure 200, the guide section steel 400 is joined to the enclosure 200 through the end reinforcement member 600, as shown in FIG. 9. As shown in FIG. 10, the end reinforcement member 600 may be formed so as not to overlap with the position of the guide section steel 400 so as to be joined to the enclosure 200 without interference with the end reinforcement member 600.

The end reinforcing member 600 may be formed in any form as long as it serves to protect the end of the concrete made of concrete, but the end surface of the enclosure 200 to disperse the concentrated load acting on the enclosure 200 It is preferable that it is made of I-shaped steel or H-shaped steel which is in contact with the whole and has a large strength.

e) propelling the enclosure 200 while removing portions of the portions constituting the steel pipe 310 and interfering with the enclosure 200 and soil in front of the enclosure 200; ((E) of FIG. 2)

Propelled by the base (P) the vessel 200 to be propelled to the location of the underground tunnel.

At this time, a part of the steel pipe 310 that interferes with the cross section of the enclosure 200, and promotes while removing the soil in front of the enclosure 200 little by little.

When the cross section of the steel pipe 310 has a rectangular cross section as shown in FIG. 3, the lower plate 312 and the side plate 313 are propelled little by little.

When the roller 314 is further installed in the steel pipe composite 300, the roller is in contact with the lower flange of the guide-shaped steel 400 and is then pushed. Soil may be removed to support the load of the enclosure 200 by placing concrete on the bottom of the space to be removed.

Before the propulsion of the enclosure 200 is carried out, so that the earth and sand located in front of the enclosure 200 is removed, it is possible to easily propel the complex 200 even in a complex structure having a plurality of spaces therein.

Even if a part of the steel pipe 310 located in front of the enclosure 200 and the earth and sand are removed, the upper plate 311 of the steel pipe 310 and the guide member steel 400 joined to the enclosure 200 may support the earth pressure. Safety and structural stability can be secured.

The guide section steel 400 is formed in the long direction in which the enclosure 200 is propelled as described above, and contributes to the precise operation of the enclosure 200.

The non-removed portion of the steel pipe 310 separates the space inside the steel pipe 310 and the surrounding ground outside the steel pipe 310 to minimize the influence of frictional force generated when the enclosure 200 is pushed on the surrounding ground. It allows to propel the enclosure 200 with a small propulsion force. When the roller 314 is installed in the steel pipe composite 300, the roller 314 reduces the friction force between the guide section steel 400 and the steel pipe 310, the housing 200 and the steel pipe 310, this effect is It gets bigger.

At the same time as the steps c) to d), more precisely after the steel pipe composite 300 is formed until the soil in front of the enclosure 200 is removed, the lower slab 220 of the enclosure 200 The process of forming at least one or more of the square tube 500B or the circular steel tube 500C may be performed.

Shaft hole (500A), square tube (500B) and circular steel pipe (500C) has a large weight by making a base concrete floor to be in contact with the lower surface of the lower slab 220, the enclosure 200 To be propelled without being settled and serve as a guide for the enclosure 200 to be propelled, as well as to form a ground first parallel to the underground tunnel as seen in a general pilot tunnel, and to cut the periphery It is easy to remove the work.

Rollers 510 may be installed on the concrete floor to reduce frictional forces generated when pushing the enclosure 200.

11 shows a state in which such a burrow hole and the like are formed.

If the ground on which the underground tunnel is constructed is made of soft ground, etc., the load of the enclosure 200 and the load generated when the enclosure 200 is propelled cannot be tolerated. The process of reinforcing the ground may be further included by constructing a support pile in front of it.

Propulsion for the propulsion of the enclosure 200 may be generated by the propulsion jack or may be generated by the towing jack, may be generated by both the propulsion jack and the towing jack.

If the propulsion force is generated by tensioning the tension member with the towing jack, the sheath tube 270 is buried in the longitudinal direction within the enclosure 200 so that the tension member can be disposed, and the reaction force B is reached at the base A. ) So that the end of the tension member can settle.

f) releasing the junction between the enclosure 200 and the guide section steel 400; ((F) of FIG. 2)

The enclosure 200 is pushed to the planned position to remove the unnecessary guide beams 400 from the enclosure 200.

When the guide section steel 400 is joined to the enclosure 200 by its end portion embedded in the enclosure 200, the guide section steel 400 is cut and removed except for the portion embedded in the enclosure 200, and embedded at the end of the enclosure 200. In the case of being joined to the enclosure 200 by the connection hardware 250, the connection with the connection hardware 250 is released to release the connection. The guide section steel 400 joined to the enclosure 200 by the connecting hardware 250 can be recycled after releasing the joining.

When the end reinforcement member 600 is further installed at the front and rear ends of the enclosure 200, the end reinforcement member 600 is also removed.

g) filling mortar between the outer surface of the housing 200 and the inner surface of the steel pipe 310; ((F) of FIG. 2)

Filling the mortar in the gap between the outer surface of the enclosure 200 and the inner surface of the steel pipe 310 to equally receive the load generated around the enclosure 200 and increases the rigidity for vibration.

And the finishing work of the inner surface of the enclosure 200 is completed by completing the construction of the underground tunnel.

Although specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments are merely examples for making the present invention easy to understand, and those skilled in the art will appreciate It is obvious that various modifications can be made within the scope of the technical idea. Therefore, such modifications will be described within the scope of the present invention as described in the claims.

The present invention relates to an enclosure propulsion method using a guide section steel capable of precisely constructing an underground tunnel and minimizing the influence on the upper ground, and may be referred to as an industrially applicable invention.

Claims

In a ship propulsion method for building an underground tunnel,

a) constructing a propulsion base (P) in front of the section in which the underground tunnel will be constructed and a reaching base (A) behind;

b) forming a plurality of steel pipes 310 in accordance with the position where the outer wall 230 and the upper slab 210 of the enclosure 200 will be constructed, and remove the soil inside the steel pipe 310 to form a steel pipe composite 300 step;

c) inserting the guide member steel 400 into the steel pipe composite 300 after installing the roller 314 inside the steel pipe composite 300 according to the position where the guide member steel 400 is to be inserted;

d) manufacturing a housing 200 in the propulsion base (P), wherein the end of the guide section steel (400) is bonded to the housing (200);

e) pushing the enclosure 200 while removing portions of the portions forming the steel pipe 310 and interfering with the enclosure 200 and soil in front of the enclosure;

f) releasing the junction between the enclosure 200 and the guide section steel 400;

g) filling the mortar between the outer surface of the housing 200 and the inner surface of the steel pipe 310; characterized in that it comprises a, the propulsion method using the guide-shaped steel.
The method of claim 1,

Cross section of the steel pipe 310 is characterized in that the rectangular or circular, the propulsion method of the hull using a guide-shaped steel.
The method of claim 1,

In the step c), the end of the guide section steel 400 is inserted into the steel pipe composite 300 so as to protrude toward the propulsion base (P) side, and the end of the guide section steel 400 protruding in the step d) is in the housing 200. The hull propulsion method using a guide-shaped steel, characterized in that the enclosure 200 is made to be embedded.
The method of claim 1,

In the step d), the enclosure 200 is manufactured so that the connection hardware 250 is embedded at the end, and is bonded to the guide section steel 400 by the connection hardware 250, the propulsion of the enclosure using the guide section steel Method.
The method of claim 1,

The lower surface or the upper and lower surfaces of the guide section steel 400, the roller is attached, characterized in that the propulsion method using the guide section steel.
The method of claim 1,

At the same time as the steps of c) to d), to form a hollow hole 500A in accordance with the position of the lower slab 220 of the enclosure 200 or at least one of the square tube (500B) or the round steel pipe (500C) The propulsion method of the hull using a guide section steel, characterized in that the process of typing the above progress.
The method of claim 6,

Guide beam, characterized in that the roller 510 is further installed in the lower position of the lower slab 220 of the housing 200 in the lower portion of the hollow hole 500A, square tube (500B) and circular steel pipe (500C). Ship propulsion method using.
The method of claim 1,

In the step e), the front of the housing 200 from which the earth and sand is removed, characterized in that the support pile is further installed, the propulsion method using the guide section steel.
The method of claim 1,

In the step d), the enclosure 200 is made so that the connection hardware 250 is embedded at the end, characterized in that the end reinforcement member 600 is further installed by the connection hardware 250, using a guide beam Ship propulsion method.
The method of claim 9,

The guide section steel 400 is characterized in that joined to the housing 200 through the end reinforcing member 600, the housing propulsion method using the guide section steel.