KR102108937B1 - Construction method for wall of undergroud structure - Google Patents

Abstract

In the present invention, the wall plate is formed between the upper cavity 60 and the lower cavity 70 formed along the longitudinal direction in the ground, so that a plurality of wall plates 610 are sequentially driven from the propulsion part 10 to the reach part 20 side. In addition to advancing forward, it is possible to reduce the construction period and cost by presenting a method for constructing a wall of an underground structure, which is characterized by forming a wall plate combination 600 by mutually coupling.

Description

CONSTRUCTION METHOD FOR WALL OF UNDERGROUD STRUCTURE

The present invention relates to the construction field, and more particularly, to a method for constructing an underground structure.

In general, the method of constructing a structure in the ground can be divided into an open type and a non-open type.

The latter non-intervention method is due to the difficulty in transferring obstacles due to construction, impediment to obstacles, or obstacles in vehicle communication when sewage, underground roadways, tunnel structures, etc. need to be installed across existing roads and railroads. It is applied when opening is impossible.

In the construction method of the structure by non-adhesion, it is essential to advance and reach the base of the work concept with both sides of roads or obstacles crossing, and the typical conventional non-adhesive underground structure construction method is underground compression method (steel pipe press method, steel pipe) And the loop method).

However, the conventional construction method used a method of extruding a plurality of steel pipes successively, or excavating an area between the pressurized steel pipes to be spaced apart by manpower, so as to form ceilings and walls of an underground structure, so that the construction period and cost There was a problem with this excess.

Korean Registered Patent No. 10-0770202 (Propulsion guide device for steel pipe roof structure) Korean Patent Publication No. 10-2009-0122061 (Propulsion guide device for steel pipe roof structure) Korean Patent Publication No. 10-2010-0072303 (Non-open type underground structure construction method using steel pipe with H-shaped guide part)

The present invention has been derived to solve the above problems, and an object thereof is to propose a construction method of an underground structure to reduce construction period and cost.

In order to solve the above problem, the present invention reaches a plurality of wall plates 610 from the propulsion unit 10 so that a wall is formed between the upper cavity 60 and the lower cavity 70 formed along the longitudinal direction in the ground. A method of constructing a wall of an underground structure is proposed, which is sequentially advanced toward the side 20 and coupled to each other to form a wall plate assembly 600.

It includes an upper incision 801 formed by cutting the lower wall of the upper cavity 60 along the longitudinal direction, and a lower incision 802 formed by cutting the upper wall of the lower cavity 70 along the longitudinal direction. Forming a wall plate guide portion 800 for press-in of the wall plate forming guide portion 800; The wall excavation part 910 installed in front to excavate the ground between the upper cavity 60 and the lower cavity 70 along the height direction, and the upper and lower ends of the upper incision 801 and the lower incision 802. The guide wall plate 920 and the rear end of the guide wall plate 920, which are installed at the rear of the wall excavation unit 910 so as to be inserted and guided, are pushed toward the front, or the guide wall plate 920 is inserted. A preparation step of a wall plate press-in device 900 for preparing a wall plate press-in device 900 including a wall plate press-in part 930 installed to press-in the rear end of the wall plate 610 coupled to the rear end of the wall plate; A primary wall excavation and advancing step of excavating the ground by the wall excavation part 910 and advancing the guide wall plate 920 by the wall plate press-fitting part 930; A primary wall plate joining step of releasing the coupling between the guide wall plate 920 and the wall plate press-in portion 930 and coupling the wall plate 610 to a rear end of the guide wall plate 920; Secondary wall excavation and excavating the ground by the wall excavation part 910 and advancing the combination of the guide wall plate 920 and the wall plate 610 by the wall plate press-in part 930 and Forward stage; And a second wall plate joining step of releasing the coupling between the wall plate 610 and the wall plate press-in portion 930 and joining another wall plate 610 to the rear end of the wall plate 610. It is desirable to do.

The guide portion 800 for press-fitting the wall plate is formed on the inner left and right sides of the upper incision 801 along the longitudinal direction, and the upper guide rails 811 of the wall and the inner left and right sides of the lower incision 802, respectively. Each wall includes a lower guide rail 812 formed along the direction, and the wall excavation unit 910 is installed to excavate the ground between the upper cavity 60 and the lower cavity 70 along the height direction. In addition, the upper end is exposed to the interior of the upper cavity 60 through the upper incision 801, the lower end is installed to be exposed to the interior of the lower cavity 70 through the lower incision 802. Wall chain saw device 911; To the upper wall chain saw guide part 1010 and the lower wall guide rail 812 installed on the side of the upper end of the wall chain saw device 911 to contact the upper guide rail 811 of the wall and drive along the longitudinal direction. It is preferable to include; a wall chain saw guide part 1000 including a lower wall chain saw guide part 1020 installed at a side of a lower end of the wall chain saw device 911 to contact and drive along the longitudinal direction.

The wall plate press-in guide portion 800 includes a plurality of upper rail support portions 821, which are installed at mutually spaced intervals on the inner left and right sides of the upper incision portion 801; In addition to being supported by the plurality of upper rail support portions 821, the upper guide rail 811 of the wall having a “c” shaped channel structure formed with an open portion upward; A plurality of lower rail support portions 822 installed at intervals between the inner left and right sides of the lower incision portion 802; In addition to being supported by the plurality of lower rail support portions 822, it is preferable that the wall portion has a "c" shaped channel structure, the lower guide rail 812 of the channel structure is formed toward the lower side.

The upper wall chain saw guide portion 1010 includes: an upper lateral protrusion 1011 formed on a side of an upper end of the wall chain saw device 911; An upper lateral wheel support portion 1012 installed on the upper lateral protrusion 1011 to enable vertical driving; Including the upper side wheel (1013) installed at the bottom of the upper side wheel support portion (1012) to be inserted into the wall upper guide rail (811) to drive, the lower wall chain saw guide portion (1020), the wall chain saw A lower lateral protrusion 1021 formed on a side of the lower end of the device 911; A lower lateral wheel support portion 1022 installed on the lower lateral protrusion 1021 to enable vertical driving; It is preferable to include; a lower lateral wheel 1023 installed at an upper end of the lower lateral wheel support 1022 so as to be inserted into and driven by the lower guide rail 812 of the wall.

It is preferable that the lower wheel 611 of the wall is installed at the lower end of the guide wall plate 920 and the lower end of the wall plate 610 so as to contact the inner bottom surface of the lower cavity 70 for sliding driving.

In the guide wall plate 920, in the state in which the guide wall plate 920 is stopped, a wall excavation part advancing part 940 installed to advance the wall excavation part 910 by advancing the piston 941. Is installed, the primary wall excavation and advancing step, in the state where the guide wall plate 920 is stopped, the driving of the wall excavation unit 910 and the piston of the wall excavation unit advancement unit 940 A wall excavation unit 910 advancing step of advancing the wall excavation unit 910 toward the front by forward driving; A piston 441 reversing step in which the piston 941 of the wall excavation part advancement part 940 is reversely driven so that a space is formed between the wall excavation part 910 and the guide wall plate 920; It is preferable to include a; guide wall plate 920 advancing step of press-in and advance the guide wall plate 920 by the wall plate press-in portion 930.

The wall excavation part 910 is such that the front end of the piston 941 of the wall excavation part advancing part 940 is in contact with the wall chain saw device 911 so as not to interfere with the excavation driving of the wall chain saw device 911. It is preferable to further include a piston contact portion 912 provided around the rear end of the (911).

The wall excavation part advancement part 940 includes: a small hydraulic cylinder 942 installed in an installation groove formed at the front end of the guide wall plate 920; It is preferably inserted into the small hydraulic cylinder 942, the piston (941) for driving forward and backward.

The wall plate press-fitting part 930 includes a plate gripping part 931 formed in a “c” -shaped cross-sectional structure so as to surround and support the rear end of the guide wall plate 920 or the rear end of the wall plate 610. It is desirable to do.

In the propulsion unit 10, the upper and lower ends of the upper incision 801 formed in the upper cavity 60 and the lower incision 802 formed in the lower cavity 70 are respectively inserted and guided to advance the guide wall. In order to support the plate 920 or the upper wall plate from both sides, it is preferable that both plate supports 13 are installed between the rear end of the upper cavity 60 and the rear end of the lower cavity 70.

The upper cavity 60 and the lower cavity 70 are formed in a curved structure to be curved upward, downward or lateral, and between the upper cavity 60 and the lower cavity 70 formed in the curved structure The wall plate assembly 600 is preferably formed in a curved structure so as to bend toward the same direction as the upper cavity 60 and the lower cavity 70.

Between the rear end of the guide wall plate 920 and the front end of the wall plate 610, relative driving to enable mutual hinge driving or mutual height direction sliding driving of the guide wall plate 920 and the wall plate 610 An allowable portion 950 is formed, between the rear end of the wall plate 610 and the front end of another wall plate 610, mutual hinge driving of the wall plate 610 and the other wall plate 610 Alternatively, it is preferable that the relative driving permission portion 950 is formed to enable sliding driving in the mutual height direction.

The relative driving allowable portion 950 includes a curved projection 951 having a “Ω” type cross-section structure; In addition to surrounding the curved protrusion 951, it is preferable to include; a curved depression 952 formed to enable the mutual hinge driving or mutually sliding in the height direction.

The relative driving allowable portion 450 is made of a separate independent member and provided to the site, and the primary wall plate coupling step is between the rear end of the guide wall plate 920 and the front end of the wall plate 610. And combining the relative driving allowable portion 950 with the second slab plate coupling step, the relative driving between the rear end of the wall plate 610 and the front end of the another wall plate 610. It is preferable to include the step of coupling the permissible portion 950.

The present invention proposes a method for constructing an underground structure to reduce the construction period and cost.

1 or less shows an embodiment of a method for constructing an underground structure according to the present invention,
1 to 6 are process diagrams related to the whole concept.
7 to 12 is a process diagram of the first embodiment of the installation step of the pair of upper steel pipe assembly.
13 to 30 is a process diagram of a first embodiment of the upper slab plate assembly installation step.
31 to 35 is a process diagram of the first embodiment of the pair of lower steel pipe assembly installation step.
36 to 46 are process diagrams of the first embodiment of the lower slab plate assembly installation step.
47 to 72 are process diagrams of the first embodiment of the wall plate assembly step.
73 to 100 are process diagrams of the first embodiment of the internal drilling step and the finishing step.
101 to 106 are block diagrams of a first embodiment of the slab digging part.
107 to 113 are block diagrams of a first embodiment of a wall excavation part.
114 to 118 are configuration views of both sides of the plate support.
119 to 123 are configuration diagrams of a support hole for excavation.
124,125 is a process diagram of a second embodiment of the step of installing a pair of upper steel pipe assemblies.
126 to 137 are process diagrams of the second embodiment of the upper slab plate assembly installation step.
138 to 146 are process drawings of the second embodiment of the wall plate assembly step.
147 to 151 are process drawings of the second embodiment of the internal excavation step and the finishing step.
152 and 153 are schematic views of a slab plate assembly.
154,155 is a block diagram of a wall plate assembly.
156 to 161 are configuration views of a second embodiment of the slab digging part.
162 to 167 are block diagrams of a second embodiment of the wall excavation.
168 to 173 are configuration diagrams of a relative driving permission unit.

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

Basically, the wall construction method of the underground structure according to the present invention includes a plurality of wall plates 610 such that a wall is formed between the upper cavity 60 and the lower cavity 70 formed along the longitudinal direction in the underground. In addition to sequentially advancing from the propulsion unit 10 to the reach unit 20 side, it takes a configuration to form a wall plate assembly 600 by mutually coupling.

In order to form a wall of an underground structure, a plurality of walls having a relatively wide width are not used by continuously pressing a plurality of steel pipes as in the prior art or by excavating an area between the pressed steel pipes to be spaced apart from each other by an attractive force. Since the plate 610 is sequentially advanced from the propulsion section 10 to the reach section 20, and combined with each other to form a wall plate combination 600, the construction period and cost can be reduced. have.

In order to advance the wall plate 610 sequentially and combine with each other to form the wall plate assembly 600, it is necessary that the upper cavity 60 and the lower cavity 70 are formed at the upper and lower ends thereof.

Here, the upper cavity 60 and the lower cavity 70 may be an existing underground structure, or may be a steel pipe assembly formed by a steel pipe press-fitting method.

On the other hand, when the upper cavity 60 and the lower cavity 70 is formed in a curved structure to be curved upward, downward or lateral, a wall plate between the upper cavity 60 and the lower cavity 70 formed in a curved structure The curved structure may be formed by forming the curved body so that the coupling body 600 is curved toward the same direction as the cavity 60 and the lower cavity 70.

1 to 6 is an embodiment of the present invention, a process diagram of an underground structure construction method using the wall construction method of the underground structure according to the present invention.

This relates to the case of applying the steel pipe assembly by the steel pipe indentation method as the upper cavity (60,60a) and the lower cavity (70,70a).

A plurality of upper steel pipes are sequentially pressed from the propulsion section 10 to the reach section 20, and are combined with each other to form the upper cavities 60, 60a, but a pair of upper cavities spaced along the mutual width direction. (60,60a) (FIGS. 1, 7 to 12).

In order to form a slab between a pair of upper cavities 60 and 60a, a plurality of upper slab plates 110 are sequentially advanced from the propulsion section 10 toward the reaching section 20 and mutually coupled to each other to form an upper slab plate. To form a combination (100) (Fig. 2, 13 to 30).

In order to be spaced downward from the pair of upper cavities (60,60a), a plurality of lower steel pipes are sequentially pressed from the propulsion section (10) to the arrival section (20), and mutually coupled to the lower cavities (70,70a). Formed, and spaced along the mutual width direction to form a pair of lower cavities (70,70a) (Fig. 3,31 to 35).

In order to form a lower slab between a pair of lower cavities 70 and 70a, a plurality of lower slab plates 210 are sequentially advanced from the propulsion section 10 toward the reaching section 20 and mutually coupled to the lower section. The slab plate assembly 200 is formed (FIGS. 4,36 to 46).

Multiple wall plates such that a (one side) wall is formed between one upper cavity 60 of one pair of upper cavities 60 and 60 and one lower cavity 70 of one pair of lower cavities 70 and 70a The 610 is sequentially advanced from the propulsion part 10 to the reach part 20, and combined with each other to form the (one side) wall plate assembly 600 (FIGS. 5, 47 to 72).

A plurality of other wall plates, such that the other wall is formed between the other upper cavity 60a of the pair of upper cavities 60,60a and the other lower cavity 70a of the pair of lower cavities 70,70a 710) are sequentially advanced from the propulsion section 10 to the reach section 20, and are combined with each other to form the other wall plate assembly 700 (FIGS. 5, 47 to 72).

A pair of upper cavities (60,60a), an upper slab plate assembly (100), a pair of lower cavities (70,70a), a lower slab plate assembly (200), (one side) wall plate assembly (600) and the other wall The inner region of the plate assembly 700 is excavated to form a tunnel (FIGS. 6,73 to 100,149 to 151).

That is, basically, the fact that the cavity is buried in the ground by the press-fitting of the steel pipe is the same as in the prior art, but the four cavities are positioned to be spaced apart from each other up and down, left and right, and the slabs and walls therebetween are plate-shaped slab plates (100,200) and After the wall plates 600 and 700 are formed by press-fitting, the inner region is excavated to form a tunnel.

Furthermore, the four cavities are formed in a curved structure so as to be curved toward the upper part, the lower part or the lateral part from the propulsion part 10, and the slabs and walls therebetween also have the same direction as the above four cavities. By forming a curved structure so as to be curved, the tunnel is generally formed to have a curved structure facing upward, downward, or lateral.

In the conventional construction method, since a plurality of steel pipes are continuously pressed to form a ceiling or a wall of an underground structure, or a method of excavating an area between the pressed steel pipes to be spaced apart by manpower is used, the construction period and cost are excessive. There was a problem, and in the case of a curved underground structure, this problem was highlighted.

On the other hand, the construction method according to the present invention applies a plate pressing method instead of a steel pipe, so it is possible to construct a large area by a small pressing operation, and it takes a method of excavating the area between the pressed steel pipes with equipment. It has the effect of reducing the time and cost.

Hereinafter, on the premise of the construction method of the underground structure using the wall construction method of the underground structure according to the present invention described above, a detailed embodiment will be described by dividing into the main processes and main structures of the construction method according to the present invention.

1. A pair of upper cavity (60,60a) forming step (Fig. 1, 7 to 12,125)

Here, the upper cavity (60,60a) may be an existing underground structure, or may be a steel pipe assembly formed by a steel pipe press-fitting method.

In the latter case, any of the general steel pipe press-fitting methods may be used as long as it is a method of installing a steel pipe assembly in the ground by press-fitting a plurality of steel pipes 61 by a press-fitting device 30 and mutual coupling of the steel pipes 61. .

An existing underground structure formed in a curved structure so as to be curved upward, downward, or lateral may be used as the upper upper cavities 60 and 60a.

In addition, the process of forming a pair of steel pipe combinations 60 and 60a in a curved structure so as to be curved upward, downward or lateral may be any of the conventional curved steel pipe press-fitting methods.

2. Upper slab plate assembly 100 installation step (Fig. 2,13 to 30,126 to 137)

In order to form an upper slab between the pair of upper cavities 60 and 60a, a plurality of upper slab plates 110 are sequentially advanced from the propulsion section 10 toward the reach section 20, and mutually coupled to the upper slab. The plate assembly 100 is formed.

When the pair of upper cavities 60 and 60a are formed in a curved structure, the upper slab plate assembly 100 is formed between the pair of upper cavities 60 and 60a formed in a curved structure. , 60a) to be curved toward the same direction.

Specifically, it takes the following configuration.

(1) Guide portion 300 for press-in of the slab plate (FIGS. 13 to 16)

This serves to guide both ends of the guide slab plate 420 and the plurality of upper slab plates 110 so that they do not flow in the vertical direction.

This is one side incision part 301 formed by cutting the other side wall of the upper side cavity 60 along the longitudinal direction, and the other side incision part 301a formed by cutting one side wall of the other upper cavity 60a along the longitudinal direction. It comprises (Fig. 13).

Both ends of the guide slab plate 420 and the plurality of upper slab plates 110 are guided to the upper one incision 301 and the other incision 301a (inserted to prevent vertical flow), thereby advancing.

The guide plate 300 for press-fitting the slab plate, one upper guide rail 311 and one lower guide rail 312 formed on the inner and lower sides of the incision section 301, respectively, along the longitudinal direction, and the other incision section 301a ), The upper and lower guide rails 311a and the other lower guide rails 312a, respectively, formed along the longitudinal direction on the inner and upper sides.

More specifically, the guide portion 300 for press-fitting the slab plate includes: a plurality of upper brackets 321 installed at mutually spaced intervals on the inner upper portion of the incision 301; In addition to being supported by a plurality of one side upper bracket 321, the upper portion of the upper side guide rail 311 of the "c" shaped channel structure formed toward the upper side; A plurality of one side lower brackets 322 spaced apart from each other at an inner lower portion of one side incision 301; In addition to being supported by a plurality of one side lower bracket 322, the bottom portion of the "c" shaped channel structure formed toward the lower side guide rail 312; is configured to include (Fig. 14 to 16).

The guide rails 311 and 312 guide the slab chain saw guide portions 510 and 520 of the slab digging portion 410, which will be described later, so that the slab digging portion 410 moves forward while preventing vertical flow (FIG. 18, 38).

In the case of the curved method, since the pair of upper cavities 60 and 60a take a curved structure, the incision part 301 and the other incision part 301a also naturally take a curved structure, and are installed thereon. The upper guide rail 311a and the other lower guide rail 312a also have a curved structure (FIG. 126).

To ensure that the plurality of upper slab plates 110 are pressurized while being guided in a curved structure naturally toward a certain direction, one upper bracket 321 and the other upper portion are guided so as to contact and guide the sides of the multiple upper slab plates 110. It is preferable that the lateral guide portion 330 is installed between the brackets by a plate structure or the like (FIGS. 134,135).

The lateral guide portion 330 is preferably installed in the rear region after the slab digging portion 410 is advanced so as not to interfere with the excavation driving of the slab digging portion 410 described later.

A plurality of upper slab plate 110 and the side guide portion 330 may be in direct contact, but the side wheel 111 on both sides of the plurality of upper slab plate 110 to drive by contacting the side guide portion 330 ) Is installed, the guide driving can be made more stable (Fig. 134,172).

(2) Slab plate press-in device 400

This is a device for excavating the front ground of the plurality of upper slab plates 110, and as a device for pressing the plurality of upper slab plates 110 toward the front ground in a curved structure, the slab excavation unit 410, guide slab plate 420, a slab plate pressing portion 430 is configured to include.

(2-1) Slab digging part 410 (Figs. 23 to 25,101 to 106,128 to 133)

It is installed at the front so as to excavate the ground between the pair of upper cavities 60 and 60a along the width direction so that a plurality of upper slab plates 110 can move forward.

This is specifically composed of a slab chain saw device 411, a motor 413, a slab chain saw guide portion 500 for guiding it.

The slab chain saw device 411 is installed to excavate the ground between one side upper cavity 60 and the other upper cavity 60a along the width direction, and at one end, one side upper cavity 60 through one side incision 301 ), And the other end is installed to be exposed to the inside of the other upper cavity 60a through the other incision 301a.

Thus, the motor 413 is installed at the end of the slab chain saw device 411 exposed inside the upper cavity 60, so that the motor 413 does not interfere with excavation of the ground of the slab chain saw device 411.

The slab chain saw guide part 500 serves to prevent the upper slab chain saw device 411 from flowing in the vertical direction or the left and right directions while advancing while excavating the ground.

Specifically, one side of the slab chain saw guide portion 510 and one side of the lower guide rail 312 installed above the one end of the slab chain saw device 411 to contact the upper guide rail 311 and drive along the longitudinal direction. In order to drive in the longitudinal direction in contact with the one side of the lower slab chain saw guide portion 520 installed at the lower end of one end of the slab chain saw device 411, and the other upper guide rail 311a to drive along the longitudinal direction. The other side of the slab chain saw device 411 is installed at the top of the other end of the slab chain saw device 411 and the other side of the slab chain saw device 411 to contact the lower guide rail 312a and drive along the longitudinal direction. It is configured to include the other lower side slab chain saw guide portion 520a installed on the lower side.

As described above, one upper guide rail 311 and one lower guide rail 312 are installed along the longitudinal direction in the upper and lower sides of the incision 301 of the upper cavity 60 on one side, and the upper cavity 60a on the other side ) The upper and lower guide rails 311a and the other lower guide rails 312a are installed in the upper and lower sides of the other incision part 301a, along the longitudinal direction, one slab chain saw guide part 510 and one lower slab chain saw guide part ( 520) are guided while riding on the upper guide rail 311 and the lower guide rail 312, respectively, and the other side slab chain saw guide part 510a and the other lower slab chain saw guide part 520a are guided by the upper upper side, respectively. Guided while riding on the rail 311a and the other lower guide rail 312a (FIG. 38).

That is, the one side slab chain saw guide portion 510 and one side lower slab chain saw guide portion 520 installed on one side upper and lower portions of the slab chain saw device 411 vertically move the upper side guide rail 311 and the lower side guide rail 312, respectively. In the crimping structure, the other side also takes the same structure, so that both ends of the slab chain saw device 411 can be stably supported during forward excavation.

More specifically, the one side slab chain saw guide part 510 includes: an upper protrusion 511 formed on one side upper part of the slab chain saw device 411; An upper wheel support portion 512 installed on the upper protrusion 511 to enable vertical driving; It is configured to include, including; upper wheel 513 installed at the bottom of the upper wheel support portion 512 to be inserted into and driven by the upper guide rail 311 on one side (FIGS. 102 and 106).

One side lower slab chain saw guide portion 520, a lower protrusion 521 formed on one side lower portion of the slab chain saw device 411; A lower wheel support portion 522 installed on the lower projection portion 521 to enable vertical driving; It is configured to include; including a lower wheel 523 installed on the upper end of the lower wheel support 522 to be inserted into one side of the lower guide rail 312 to drive.

Therefore, when preparing the slab chain saw device 411, the upper wheel support unit 512 is driven upward, and the lower wheel support unit 522 is driven downward, so that the distance between the upper wheel 513 and the lower wheel 523 is increased. This is to be sufficiently spaced, and when the slab chain saw device 411 is installed on the upper guide rail 311 and the lower guide rail 312, the upper wheel support 512 is driven downward, and the lower wheel support 522 is installed. ), The upper wheel 513 and the lower wheel 523 are stably seated (compressed) on one side of the upper guide rail 311 and one side of the lower guide rail 312 so as to be driven by sliding.

In the case of the curved construction method, the slab chain saw device 411 must be guided to excavate the ground while curve-driven in the designed direction. In this case, since the slab chain saw device 411 generates a greater load, one side slab chain saw guide that guides it It is preferable for a stable guide driving that a plurality of parts 510 and one lower slab chain saw guide part 520 are installed along the front-rear direction.

In order to have a plurality of slab chain saw guide portions having a mutually stable separation distance, it is preferable that the one side slab chain saw guide portion 510 and the one lower slab chain saw guide portion 520 are installed on the guide slab plate 420 to be described later. (Figures 128-130,132,133,156-161).

When installing or dismantling the slab chain saw device 411, the tension adjusting unit 414 is utilized to increase or decrease the tension of the chain saw (FIG. 26).

(2-2) Upper slab plate 110 and guide slab plate 420 (FIGS. 23 to 25,101 to 106,152,153)

It does not matter if the upper slab plate assembly 100 takes a curved structure toward upward or downward, but when taking a curved structure toward one side or the other, in order to have the curvature as a whole, a plurality of upper slab plates It is preferable that 110 is formed to have a smaller width in the front-rear direction on the other side than a width in the front-rear direction on one side (Fig. 152).

Between the rear end of the upper slab plate 110 and the front end of the other upper slab plate 110, mutual hinge driving or mutual sliding in the width direction of the upper slab plate 110 and another upper slab plate 110 is possible. To do so, the relative driving permission portion 450 is formed (FIGS. 153,168 to 173).

That is, when the upper slab plate assembly 100 takes a curved structure toward the upper side or the lower side, the upper relative drive allowable portion 450 is hinged, and the upper slab plate assembly 100 is directed toward one side or the other side. In the case of taking the curved structure, the upper relative driving allowable part 450 is driven in the width direction by sliding, so that a stable curved underground structure is achieved.

Specifically, the relative driving permission portion 450 includes: a curved projection 451 having a “Ω” type cross-section structure; In addition to surrounding the curved protrusion 451, it is preferable to include a curved depression 452 formed to enable mutual hinge driving or mutual sliding in the width direction (FIGS. 169,173).

This structure has the advantage of enabling a solid coupling between the upper slab plate 110 and another upper slab plate 110, and having a degree of order function after completion of construction.

A curved protrusion 451 is formed at a rear end of the front upper slab plate 110, and a curved depression 452 is formed at the front end of the rear upper slab plate 110, which is coupled thereto, and these are in the field. Although it is possible to take a method of assembling, this has a hassle of performing the above assembling work in the propulsion section 10 which is a relatively narrow space compared to the width of the upper slab plate 110.

Therefore, the relative driving allowable portion 450 is made of separate independent members (a structure in which the curved protrusion 451 and the curved depression 452 are pre-assembled) and provided to the site, and the upper slab plate ( It is preferable in terms of constructability to combine the relative driving allowable portion 450 by welding or the like between the rear end of 110 and another upper slab plate 110 (FIGS. 168 to 171).

The guide slab plate 420 has the same plate structure as the upper slab plate 110, and is installed at the rear of the upper slab chain saw device 411, and the slab chain saw device 411 by the slab digging part advancement section 440 described later. It serves to press forward.

Since both ends are inserted and guided in the one incision 301 and the other incision 301a, the flow in the vertical direction is prevented.

Between the rear end of the guide slab plate 420 and the front end of the upper slab plate 110, the relative drive permitting portion () to enable mutual hinge driving or lateral sliding driving of the guide slab plate 420 and the upper slab plate 110 450) is formed, and the reason is as described above (FIGS. 128 and 130).

It is the same reason as described above that it is preferable to weld-couple the relative driving allowable part 450 provided in the field in advance between the rear end of the guide slab plate 420 and the front end of the upper slab plate 110.

(2-3) Slab plate press-in portion 430 (FIGS. 18 to 22)

This pushes the rear end of the guide slab plate 420 combined with the slab chain saw device 411 toward the front, or pushes the rear end of the upper slab plate 110 coupled to the rear end of the guide slab plate 420 toward the front. It is installed in the part (10).

This can be implemented by a large hydraulic cylinder or the like used in the general steel pipe press-fitting method.

However, since the relatively thin plate structure has to be pressed, the plate gripping portion 431 formed of a “c” shaped cross-sectional structure is formed to support the rear end of the guide slab plate 420 or the rear end of the upper slab plate 110. It is preferred to include.

(2-4) Slab digging part advancing part 440 (FIGS. 18 to 24,)

When excavating the ground by the slab chain saw device 411, the guide slab plate 420 coupled thereto may be entirely press-fitted by the slab plate press 430, but in this case, rock or other unexpected buried objects in the excavation target ground The damage of the slab chain saw device 411 may occur due to the presence of, or excessive pressure application of the slab plate press-in portion 430 to the slab chain saw device 411.

In order to prevent this, in the state where the guide slab plate 420 is stopped, a separate slab digging portion advancing portion () on the guide slab plate 420 to advance the slab digging portion 410 by advancing the piston 441. 440) is preferably installed.

The upper slab excavation part forward part 440 is a small hydraulic cylinder 442 installed in the installation groove formed at the front end of the guide slab plate 420 (relative concept to the large hydraulic cylinder used in the upper slab plate press-in part 430). to be); It is configured to include; is inserted into the small hydraulic cylinder 442, the piston 441 to drive back and forth.

In order to prevent direct contact between the upper piston 441 and the chain saw of the slab chain saw device 411, the front end of the piston 441 contacts and the slab chain saw does not interfere with the excavation of the slab chain saw device 411. It is preferred that the piston contact 412 is installed around the rear end of the device 411.

(3) The specific process of the installation step of the upper slab plate assembly 100 (FIGS. 2, 13 to 30)

Basically, the ground is excavated by the slab excavation portion 410, and the guide slab plate 420 is first advanced by the slab plate pressing portion 430.

Specifically, in the state where the guide slab plate 420 is stopped, the slab digging portion 410 is directed forward by the piston advancing driving of the slab digging portion advancing portion 440 as well as the digging operation of the slab digging portion 410. Advance (Figs. 18, 19, 23).

The piston 441 of the slab digging portion forward portion 440 is driven backward so that a space is formed between the slab digging portion 410 and the guide slab plate 420 (FIGS. 20, 21 and 24).

The guide slab plate 420 is press-fitted and advanced by the slab plate pressing portion 430 so that the front end of the piston 441 contacts the piston contact portion 412 of the slab digging portion 410 (FIG. 22).

By repeating this process, after the guide slab plate 420 is sufficiently advanced, the coupling of the guide slab plate 420 and the slab plate press-in portion 430 is released, and the upper slab plate is installed at the rear end of the guide slab plate 420. Combine (110), so that the upper relative drive allowable portion 450 is inserted between them.

The coupling between the guide slab plate 420, the relative driving allowable portion 450, and the upper slab plate 110 is preferable for stable construction and stability of the structure after construction by welding.

In addition to excavating the ground by the slab digging portion 410, the combination of the guide slab plate 420 and the upper slab plate 110 is secondarily advanced by the slab plate pressing portion 430, specifically as described above. The press-fit method by the slab digging part advancing part 440 is applied.

Here, in order to more stably support and guide the lateral side of the upper slab plate 110, it is preferable to install the lateral guide portion 330 described above in the place where the slab excavation portion 410 has passed.

That is, in the state where the side of the upper slab plate 110 is guided by the upper side guide portion 330, it is preferable to press the guide slab plate 420 by the slab plate press-in portion 430 to advance (FIG. 134 to 136).

After the combination of the guide slab plate 420 and the upper slab plate 110 is sufficiently advanced, the coupling between the upper slab plate 110 and the slab plate press-in portion 430 is released, and to the rear end of the upper slab plate 110. Another upper slab plate 110 is welded, but the upper relative driving allowance 450 is inserted therebetween.

By repeating this process, the slab digging portion 410 reaches the reaching portion 20 to form the upper slab plate assembly 100 (FIGS. 29 and 30).

(4) Other

In the propulsion unit 10, the guide slab plate 420 or the upper portion of the pair of upper cavities 60 and 60a, respectively, is guided to advance while being inserted into both ends of the incision 301 and the other incision 301a. To support the slab plate 110 upward, it is preferable that the plate holder 11 is installed between the rear ends of the pair of upper cavities 60 and 60a (FIGS. 17 to 20).

In addition, in order to prevent bending that may occur during the pressing operation by contacting the upper surface of the guide slab plate 420 or the upper slab plate 110 being pressed, the plate upper surface support is spaced upward by the thickness of the plate in the plate holder 11 It is preferable that (12) is installed (Figs. 17 to 20).

3. A pair of lower cavity (70,70a) forming step (Fig. 3,31 to 35)

In the case of the lower cavities 70 and 70a, as in the case of the upper cavities 60 and 60a above, it may be an existing underground structure or a steel pipe assembly formed by a steel pipe press-fitting method.

However, in the latter case, a pair of lower steel pipe couplings 70 and 70a must be installed spaced downward from the pair of upper steel pipe couplings 60 and 60a according to the height of the underground structure to be constructed. 10) is further excavated to expand the working space downward (FIGS. 31,32,138,139).

Thereafter, a plurality of lower steel pipes 71 are press-fitted and mutually coupled by the press-in device 30 to form lower steel pipe combinations 70 and 70a.

The other process is the same as in the case of the above-mentioned pair of upper cavities (upper steel pipe assembly) 60,60a.

4. Lower slab plate assembly 200 installation steps (FIGS. 4,36 to 46,138)

In order to form a lower slab between a pair of lower cavities 70 and 70a, a plurality of lower slab plates 210 are sequentially advanced from the propulsion section 10 toward the reach section 20, and mutually coupled to the lower slab. As a process of forming the plate assembly 200, specifically, it is the same as in the case of the installation step of the upper slab plate assembly 100 described above.

5. Wall plate assembly 600 installation step (Fig. 5,47 to 71,138 to 145)

A plurality of wall plates 610 such that a wall is formed between one upper cavity 60 of the pair of upper cavities 60 and 60a and one lower cavity 70 of the pair of lower cavities 70 and 70a. And sequentially advancing from the propulsion section 10 to the reach section 20 and mutually engaging to form a (one side) wall plate assembly 600.

Here, the wall plate assembly 600 between the one side upper cavity 60 and the one lower cavity 70 formed in a curved structure is curved to bend toward the same direction as the one upper cavity 60 and one lower cavity 70 It is formed into a mold structure.

Specifically, it takes the following configuration.

(1) Guide plate 800 for press-fitting the wall plate (FIGS. 47 to 52)

This serves to guide both sides of the guide wall plate 920 and the multiple wall plates 610 so that they do not flow laterally during advancement.

This is an upper incision 801 formed by cutting the lower wall of one upper cavity 60 along the longitudinal direction, and a lower incision 802 formed by cutting the upper wall of the lower cavity 70 along the longitudinal direction. It is configured to include (Fig. 47 to 52).

The upper and lower ends of the guide wall plate 920 and the plurality of wall plates 610 are guided to the upper incision 801 and the lower incision 802, respectively (while being inserted to prevent lateral flow), thereby advancing.

The guide portion 800 for press-fitting the upper wall plate has a lengthwise direction on the inner left and right sides of the upper guide rail 811 of the wall formed along the longitudinal direction on the inner left and right sides of the upper incision 801, and the lower incision 802, respectively. It is configured to include a guide rail 812 for each wall formed accordingly (Figs. 50 to 52).

More specifically, the guide portion 800 for press-fitting the upper wall plate includes a plurality of upper rail support portions 821 installed at mutually spaced intervals on the inner left and right sides of the upper incision portion 801; In addition to being supported by a plurality of upper rail support portions 821, the upper guide rail 811 of the wall having a "c" shaped channel structure formed with an open portion upward; A plurality of lower rail supports 822 installed at intervals of the inner left and right sides of the lower incision 802; In addition to being supported by a plurality of lower rail support portions 822, the wall portion is formed in a downward direction "c" shaped channel structure of the lower guide rail 812; comprises a (Fig. 50 to 52).

The guide rails 811 and 812 guide the wall chain saw guide parts 1010 and 1020 of the wall excavation part 910, which will be described later, so that the wall excavation part 910 is prevented from flowing in the lateral direction and serves to advance (FIG. 18,38).

In the case of the curved method, since the upper cavity 60 and the lower cavity 70 on one side take a curved structure, the upper incision 801 and the lower incision 802 also naturally take a curved structure, The upper guide rail 811 and the lower guide rail 812 installed on the wall also have a curved structure (FIGS. 146 and 147).

(2) Wall plate press-fitting device (900)

This is a device that excavates the front ground of the plurality of wall plates 610 and presses the plurality of wall plates 610 toward the front ground, the wall excavation unit 910, the guide wall plate 920, the wall plate It is configured to include a press-fitting portion 930.

(2-1) Wall excavation part 910 (Figs. 62 to 69,107 to 113,162 to 167)

It is installed in the front so as to excavate the ground between the upper one side cavity 60 and the lower one side cavity 70 along the height direction, so that the plurality of wall plates 610 can move forward.

This is specifically composed of a wall chain saw device 911, a motor 913, a wall chain saw guide unit 1000 for guiding it, and the like.

The wall chain saw device 911 is installed to excavate the ground between the upper side cavity 60 and the lower side cavity 70 along the height direction, and the upper end portion has the upper side cavity 60 through the upper incision 801. ), The lower end is installed to be exposed to the inside of the lower cavity 70 on one side through the lower incision 802.

As described above, since the motor 913 is installed at the top or bottom of the wall chain saw device 911 exposed inside the upper cavities 60 and 60a, the motor 913 does not interfere with the ground excavation of the wall chain saw device 911. It does not.

The wall chain saw guide part 1000 serves to prevent the upper wall chain saw device 911 from moving in the vertical direction or the left and right directions while advancing while excavating the ground.

Specifically, the upper wall chain saw guide portion 1010 and the lower wall guide rail 812 installed on the side of the upper end of the wall chain saw device 911 so as to contact the upper guide rail 811 of the wall and drive along the longitudinal direction. It comprises a lower wall chain saw guide portion 1020 installed on the side of the lower end of the wall chain saw device 911 to drive in contact with the longitudinal direction.

As described above, the upper and lower guide rails 811 along the longitudinal direction are installed on the inner left and right sides of the upper incision 801 of the upper cavity 60 at one side, and the lower incision 802 of the upper cavity 60 at one side. In the inner left and right of the wall, the lower wall guide rail 812 is installed along the longitudinal direction. The upper wall chain saw guide part 1010 and the lower wall chain saw guide part 1020 are respectively the upper wall upper guide rail 811 and the lower wall guide. Guided while riding on the rail 812 (FIGS. 65 to 69).

That is, the upper wall chain saw guide part 1010 and the lower wall chain saw guide part 1020 installed on the upper and lower parts of the wall chain saw device 911 press the upper wall guide rail 811 and the lower wall guide rail 812 up and down. Since it takes a structure, the upper and lower ends of the wall chain saw device 911 can be stably supported during forward excavation.

More specifically, the upper wall chain saw guide portion 1010 includes: an upper lateral protrusion 1011 formed on a side of the upper end of the wall chain saw device 911; An upper side wheel support portion 1012 installed on the upper side protrusion portion 1011 to enable up and down driving; It is configured to include, including; upper side wheel (1013) installed at the bottom of the upper side wheel support (1012) to be inserted into the wall upper guide rail (811) to drive (Figs. 107 to 113).

The lower wall chain saw guide portion 1020 includes: a lower lateral protrusion 1021 formed on a side of the lower end of the wall chain saw device 911; A lower side wheel support portion 1022 installed on the lower side protrusion portion 1021 to enable up and down driving; It is configured to include, including; a lower lateral wheel (1023) installed on the top of the lower lateral wheel support portion 1022 to be inserted into and driven by the lower guide rail 812 on the wall (FIGS. 107 to 113).

Therefore, when preparing the wall chain saw device 911, the upper side wheel support portion 1012 is driven upward, and the lower side wheel support portion 1022 is driven downward, thereby causing the upper side wheel 1013 and the lower side wheel 1023 to be driven. ) So that the distance between them is sufficiently spaced, and when installing the wall chain saw device 911 for the upper wall guide rail 811 and the lower wall guide rail 812, the upper side wheel support 1012 is driven downward, By driving the lower lateral wheel support portion 1022 upward, the upper lateral wheel 1013 and the lower lateral wheel 1023 are stably seated on the wall upper guide rail 811 and the wall lower guide rail 812 (pressing), respectively. Can be driven to slide.

In the case of the curved construction method, the wall chain saw device 911 must be guided to excavate the ground while curve-driven in the designed direction. In this case, since the wall chain saw device 911 has a greater load, an upper wall chain saw guide that guides it It is preferable for a stable guide driving that a plurality of parts 1010 and a lower wall chain saw guide part 1020 are installed along the front-rear direction.

In order to have a plurality of wall chain saw guide parts having a mutually stable separation distance, it is preferable that the added top wall chain saw guide part 1010 and the bottom wall chain saw guide part 1020 are installed on the guide wall plate 920 to be described later ( Figures 143,144,164,166).

(2-2) Wall plate 610 and guide wall plate 920 (Figs. 62 to 69,107 to 113,142 to 144,154,155)

Between the rear end of the wall plate 610 and the front end of another wall plate 610, the relative driving allowable portion to enable mutual hinge driving or mutual sliding in the height direction of the wall plate 610 and another wall plate 610 950 is formed (FIGS. 140, 150, 151).

That is, when the wall plate assembly 600 takes a structure toward the one side or the other side of the curved wall plate assembly 600, the upper relative driving allowable part 450 is hinged, and the wall plate assembly 600 is When the curved structure is taken upward or downward, a stable curved underground structure is achieved by sliding the upper relative driving unit 450 in the height direction.

In this case, as in the case of the upper slab plate assembly 100 described above, in order for the assembly to have a curvature as a whole, a plurality of wall plates 610 are formed to have different widths in the front-rear direction and the front-rear direction in the lower side. desirable.

Specifically, the relative driving permission portion 950 includes a curved projection 951 having a “Ω” type cross-section structure; In addition to surrounding the curved protrusion 951, it is preferable to include; a curved depression 952 formed to enable mutual hinge driving or mutual sliding in the width direction (FIGS. 154,155).

This structure has the advantage of enabling a solid coupling between the wall plate 610 and another wall plate 610, and having a degree of order function after completion of construction.

A curved protrusion 451 is formed at a rear end of the front wall plate 610, and a curved depression 452 is formed at the front end of the rear wall plate 610 that is coupled to the wall plate 610, and these are assembled in the field. Although it is possible to take a method, this has a hassle of performing the above assembling work in the propulsion unit 10 which is a relatively narrow space compared to the height of the wall plate 610.

Therefore, the relative driving allowable portion 950 is made of separate independent members (a structure in which the curved protrusion 951 and the curved depression 952 are pre-assembled) and provided to the site, and the wall plate 610 ) It is preferable from the viewpoint of constructability to combine the relative driving allowable portion 950 between the rear end of the wall and the front end of another wall plate 610 by welding or the like.

The guide wall plate 920 is basically the same plate structure as the wall plate 610, and is installed at the rear of the upper wall chain saw device 911, and the wall chain saw device 911 by the wall excavation unit advancement part 940 described later. ) To press forward.

Since the upper and lower ends are inserted and guided in the upper incision 801 and the lower incision 802, respectively, lateral flow is prevented.

Unlike the case of the guide slab plate 420 and the upper slab plate 110 described above, the guide wall plate 920 and the wall plate 610 are installed so as to advance to a standing structure, so that the lower end has one side lower cavity 70 It is preferable to make the sliding drive in contact with the inner bottom surface of the.

To this end, the lower wall wheel 611 is installed at the lower end of the guide wall plate 920 and the lower end of the wall plate 610 (FIGS. 64 and 70).

Between the rear end of the guide wall plate 920 and the front end of the wall plate 610, the relative drive allowable portion 950 to enable mutual hinge driving or mutual sliding in the height direction of the guide wall plate 920 and the wall plate 610 ) Is formed, and the reason is as described above.

It is preferable to weld-couple the relative driving allowable portion 950 which is prepared in advance between the rear end of the guide wall plate 920 and the front end of the wall plate 610 and provided to the site, as described above.

(2-3) Wall plate press-in portion 930 (Figs. 53 to 64)

This pushes the rear end of the guide wall plate 920 combined with the wall chain saw device 911 toward the front, or pushes the rear end of the wall plate 610 coupled to the rear end of the guide wall plate 920 toward the front. It is installed in the part (10).

This can be implemented by a large hydraulic cylinder or the like used in the general steel pipe press-fitting method, in order to support the large hydraulic cylinder, a reaction force 932 made of concrete or the like is installed on the propulsion unit 10 (FIGS. 53, 54). .

However, since it needs to press in a relatively thin plate structure, it includes a plate gripping portion 931 formed of a “c” shaped cross-sectional structure to support the rear end of the guide wall plate 920 or the rear end of the wall plate 610. It is preferred to do this (FIGS. 58,60).

(2-4) Wall excavation part advancing part 940 (Figs. 62 to 68)

When excavating the ground by the wall chain saw device 911, the guide wall plate 920 coupled thereto may be entirely press-fitted by the wall plate presser 930, but in this case, rock or other unexpected deposits on the ground to be excavated The damage of the wall chain saw device 911 may occur due to the existence of, or excessive pressure application of the wall plate press-in portion 930 to the wall chain saw device 911.

In order to prevent this, in the state where the guide wall plate 920 is stopped, a separate wall excavation part advancing part to the guide wall plate 920 to advance the wall excavation part 910 by advancing the piston 941 ( 940) is preferably installed.

The upper wall excavation part advancement part 940 is a relative concept to a large hydraulic cylinder used in a small hydraulic cylinder 942 installed in an installation groove formed in the front end of the guide wall plate 920 (the large wall cylinder press-fitting part 930). to be); It is configured to include; is inserted into the small hydraulic cylinder 942, the piston (941) for driving forward and backward.

In order to prevent direct contact between the upper piston 941 and the chain saw of the wall chain saw device 911, the front end of the piston 941 contacts and the wall chain saw does not interfere with the excavation of the wall chain saw device 911. It is preferred that the piston contact 912 is installed around the rear end of the device 911.

(3) Concrete process of the installation step of the wall plate assembly 600 (FIGS. 5,55 to 71)

Basically, the ground is excavated by the wall excavation part 910, and the guide wall plate 920 is first advanced by the wall plate press-in part 930.

Specifically, in the state where the guide wall plate 920 is stopped, the wall excavation part 910 is directed toward the front by the excavation driving of the wall excavation part 910 and the piston forward driving of the wall excavation part advancement part 940. Advance (Fig. 65, 66).

The piston 941 of the wall excavation part advancing part 940 is driven backward so that a space is formed between the wall excavation part 910 and the guide wall plate 920 (FIG. 67).

By pushing and advancing the guide wall plate 920 by the wall plate press-in portion 930, the front end of the piston 941 is brought into contact with the piston contact portion 912 of the wall excavation portion 910 again (Figs. 63, 68). ).

By repeating this process, after the guide wall plate 920 is sufficiently advanced, the coupling between the guide wall plate 920 and the wall plate press-in portion 930 is released, and the wall plate (at the rear end of the guide wall plate 920) 610), but the upper relative driving allowable portion 950 is inserted between them.

The coupling between the guide wall plate 920, the relative driving allowable portion 950, and the wall plate 610 is preferable for stable construction and stability of the structure after construction by welding.

In addition to excavating the ground by the wall excavation part 910, the combination of the guide wall plate 920 and the wall plate 610 is secondarily advanced by the wall plate press-in part 930, specifically, the above-described wall The press-fit method by the excavation part advancing part 940 is applied.

After the combination of the guide wall plate 920 and the wall plate 610 is sufficiently advanced, the coupling between the wall plate 610 and the wall plate press-in portion 930 is released, and another above is added to the rear end of the wall plate 610. The wall plate 610 is welded, but the upper relative driving allowable part 950 is inserted between them.

By repeating this process, the wall excavation portion 910 reaches the reaching portion 20, thereby forming the wall plate assembly 600 (FIG. 71).

(4) Other

In the propulsion unit 10, the upper and lower ends are inserted into the upper incision 801 formed in the upper cavity 60 at one side and the lower incision 802 formed in the lower cavity 70 at one side, respectively, to guide and advance the guide wall plate ( 920) or to support the upper wall plate 610 on both sides, it is preferable that both plate supports 13 are installed between the rear end of one upper cavity 60 and the rear end of one lower cavity 70 (FIGS. 55 to 61,114-118).

The plate-side support 13 is formed of a steel structure by H-beam, and is installed on the propulsion unit 10, so that the propulsion unit 10 or the upper wall plate 610 is applied during press-fitting by the wall plate press-in portion 930. Can be prevented from being damaged.

6. Installation step of the other wall plate assembly 700 (FIGS. 5,47 to 72)

In order to form another wall, which is another wall between the other upper cavity 60a of the pair of upper cavities 60 and 60a and the other lower cavity 70a of the pair of lower cavities 70 and 70a, a plurality of As a process of sequentially advancing the other side wall plate 710 from the propulsion part 10 to the reaching part 20 and mutually bonding to form the other side wall plate assembly 700, specifically, the above-described wall plate assembly ( 600) Same as in the case of installation.

7. Internal excavation step and finishing step (FIGS. 73 to 100)

The tunnel is formed by excavating the inner ground of the box-type closed structure (see FIG. 72) formed by the slab plate assembly (100,200) and the wall plate assembly (600,700), and finishing by pouring lining concrete.

If the cavity (60,60a, 70,70a) is an existing underground structure, it cannot be damaged, and the above process is performed while maintaining the structure.

However, if the cavities 60, 60a, 70, 70a are formed by a steel pipe assembly and there is no separate use for the steel pipe assembly itself, a cross-sectional area of the underground structure to be constructed by cutting a portion of the steel pipe assembly as described below It is desirable to increase the structural stability of the underground structure by enlarging and filling the inside of the steel pipe assembly with concrete.

Hereinafter, a description will be given on the assumption that the cavities 60, 60a, 70, 70a are formed by a steel pipe assembly.

(1) Closed structure and concrete pouring inside the steel pipe assembly (Figs. 73 to 79)

When each cavity is formed by a steel pipe assembly, it is preferable for the structural stability of the underground structure that the inside of each steel pipe assembly (60,60a, 70,70a) is filled with reinforced concrete.

In addition, the area overlapping the box-type closed structure (see FIG. 72) formed by the slab plate assembly 100,200 and the wall plate assembly 600,700 among the steel pipe combinations 60, 60a, 70, and 70a is a part of the steel pipe assembly. Removal is desirable for enlargement of the cross-sectional area of the underground structure.

To this end, the slab plate combinations 100 and 200 and the wall plate combinations 600 and 700 in each of the steel pipe combinations 60, 60a, 70, and 70a are preferably configured to have the following closed structure.

That is, one end of the upper slab plate assembly 100 exposed to the inside of the upper side steel pipe assembly 60 through one side incision 301 of the upper side steel pipe assembly 60 and one side of the upper steel pipe assembly 60 Between the upper ends of the wall plate assembly 600 exposed to the inside of the upper steel pipe assembly 60 on one side through the upper incision 801, one inclined plate 160 is installed to form a mutually closed structure (FIG. 148) ).

Since both the upper slab plate assembly 100 and the wall plate assembly 600 have a curved structure, it is difficult to form a closed structure by direct contact.

The upper side of the inclined plate 160 is installed inclined and can take a curved structure in the same direction as the upper side of the steel pipe assembly 60, so that the space between the upper slab plate assembly 100 and the wall plate assembly 600 installed spaced apart from each other It can be easily achieved by binding to the closed structure.

Since the upper end of the one side inclined plate 160 and one end of the upper slab plate assembly 100 are preferably welded directly, after removing the lateral guide portion 330, the upper side of the one side inclined plate 160 and the upper slab plate assembly ( One end of 100) is coupled (FIGS. 147,148).

Subsequently, among the inner regions of the upper steel pipe assembly 60 formed as described above, the reinforcing bar 62 is reinforced in the outer region of the closed structure of the upper slab plate assembly 100 and the wall plate assembly 600 and concrete (C) is added. Pour (FIG. 149).

In the case of the inner regions of the remaining steel pipe assemblies 60a, 70, and 70a, it is preferable to take the above structure.

That is, the other end of the upper slab plate assembly 100 exposed to the inside of the other upper steel pipe assembly 60a through the other incision 301a of the other upper steel pipe assembly 60a, and the other upper steel pipe assembly 60a The upper end of the other wall plate assembly 700 exposed to the inside of the other upper steel pipe assembly 60a through the upper incision 801 is installed between the other inclined plate 160a to form a mutually closed structure ( Figure 149).

One side end of the lower slab plate assembly 200 exposed to the inside of the one side lower steel pipe assembly 70 through one side incision 301 of the one side lower steel pipe assembly 70, and the lower incision of the one lower steel pipe assembly 70 The lower portion of the wall plate assembly 600 exposed to the inside of the lower steel pipe assembly 70 on one side through the portion 802 is installed to form a mutually closed structure.

Due to the bending structure, when direct contact between one end of the lower slab plate assembly 200 and the one side wall plate assembly 600 is difficult, a separate extension plate 220 may be installed to form a mutual closing structure ( Figure 146).

The other end of the lower slab plate assembly 200 exposed to the inside of the other lower steel pipe assembly 70a through the other incision 301a of the other lower steel pipe assembly 70a, and the lower incision of the other lower steel pipe assembly 70a The lower portion of the other wall plate assembly 700 exposed to the inside of the other lower steel pipe assembly 70a through the portion 802 forms a mutually closed structure.

Thereafter, among the inner regions of the steel pipe combinations 60a, 70, and 70a formed as described above, the reinforcing bars 62 are reinforced in the outer regions of the closed structure of the slab plate combinations 100 and 200 and the wall plate combinations 600 and 700, and concrete (C) Pour (Fig. 150).

(2) Support hole for drilling (1100) (82 to 92,119 to 123)

Excavation of the inner region of the slab plate assembly (100,200) and the wall plate assembly (600,700), in order to prevent the collapse of the ground during excavation of the ground by the excavation equipment 1300, excavate around the installation position of the excavation equipment 1300 The paper hole 1100 is installed.

That is, the support hole 1100 for excavation is a structure to support the upper slab plate assembly 100 upwardly, and is formed in a structure in which excavation equipment can be located, and the position moves forward with the progress of excavation. do.

The support hole 1100 for excavation is specifically, an upper frame 1110 supporting the upper slab plate assembly 100 upward, a lower frame 1120 supported upward by the lower slab plate assembly 200, and an upper portion. A lateral frame 1130 installed between the frame 1110 and the lower frame 1120 and a height adjusting unit 1140 installed to adjust the height of the lateral frame 1130, and installation of drilling equipment therein Space is formed.

Since the soil inflow prevention plate 1121 is installed in a standing structure in the front lower portion of the excavation support hole 1100, it is possible to prevent excessive inflow of sediment into the excavation support hole 1100 side during excavation.

(3) Internal excavation work and finishing work (FIGS. 81 to 96)

Using a digging equipment 1300 and a support hole 1100 for excavation, a pair of steel pipe assemblies 60,60a, an upper slab plate assembly 100, a pair of lower steel pipe assemblies 70,70a, and a lower slab plate Tunnels are formed by excavating the inner regions of the assembly 200, the wall plate assembly 600, and the other wall plate assembly 700.

First, to have the same height as the lower slab plate assembly 200, the worktable 1150 is installed on the propulsion unit 10 (FIG. 81).

An excavation equipment 1300 and a support hole 1100 for excavation are placed on a work table 1150, and an internal excavation area is excavated (FIG. 82).

While the height of the upper frame 1110 is lowered by the height adjusting unit 1140, the excavation support hole 1100 is advanced, and the height of the upper frame 1110 is increased by the height adjusting unit 1140 to increase the height of the upper frame 1110. ) Excavates the internal excavation area in a state where the upper slab plate assembly 100 is supported upward, and repeats this (FIGS. 83 to 92).

As described above, with the above excavation work. The lower side of the other side of the upper steel pipe assembly 60 exposed inward by the excavation of the inner excavation region, the lower side of the other upper steel pipe assembly 60a, the upper side of the other side of the lower steel pipe assembly 70 and the lower side of the other steel pipe assembly 70a ) To remove the upper part of one side to enlarge the cross-sectional area of the underground structure (FIG. 86).

Permanent support for the area where the excavation is completed, to contact and support the inner surfaces of the upper slab plate assembly 100, the lower slab plate assembly 200, the (one side) wall plate assembly 600 and the other wall plate assembly 700 1200 is installed (FIGS. 87 to 94,150,151).

Permanent support hole 1200, it is preferable to take the steel structure by the H beam for structural stability.

The soil excavated by the excavation equipment 1300 should be carried out of the tunnel by the transport equipment 1400, so that the operation of the transport equipment 1400 is not disturbed by the above permanent supporter 1200, the It is preferable to install the support plate 1310 on the upper floor (FIGS. 89 to 92).

After the completion of the internal excavation work, the reinforcing bars on the inner surfaces of the upper slab plate assembly 100, the lower slab plate assembly 200, the wall plate assembly 600, and the other wall plate assembly 700, so that the permanent support hole 1200 is buried (1201) is reinforced and the lining concrete (C) is poured (FIGS. 97 to 100).

The above is merely a description of some of the preferred embodiments that can be implemented by the present invention, so, as is well known, the scope of the present invention should not be construed as being limited to the above embodiments, and the present invention described above. It will be said that both the technical idea and the technical idea together with the fundamental are included in the scope of the present invention.

10: propulsion unit 11: plate holder
12: plate top support 13: plate both sides support
20: reach 60,60a: upper cavity, steel pipe assembly
70,70a: lower cavity, steel pipe assembly 100: upper slab plate assembly
110: upper slab plate 111: side wheel
160: one inclined plate 160a: the other inclined plate
200: lower slab plate assembly 210: lower slab plate
300: guide portion for press-fitting the slab plate 301: one side incision
301a: Other incision part 311: One side upper guide rail
311a: Upper guide rail on the other side 312: Lower guide rail on the other side
312a: Lower guide rail on the other side 321: Upper bracket on one side
322: one side lower bracket 330: side guide portion
400: slab plate pressing device 410: slab digging part
411: slab chain saw device 412: piston contact
413: motor 420: guide slab plate
430: slab plate press-fitting portion 431: plate gripping portion
440: slab excavation part forward part 441: piston
442: Small hydraulic cylinder 450: Relative driving allowance
451: curved projection 452: curved depression
500: slab chain saw guide
510: One side upper slab chain saw guide part
510a: upper side slab chain saw guide part
511: upper projection 512: upper wheel support
513: upper wheel
520: One side lower slab chain saw guide part
520a: the other lower slab chain saw guide
521: lower protrusion 522: lower wheel support
523: lower wheel 600: wall plate assembly
610: Wall plate 611: Wall lower wheel
700: the other wall plate assembly 710: the other wall plate
800: wall plate press-in guide portion 801: upper incision
802: Lower incision 811: Upper guide rail of the wall
812: Lower guide rail of the wall 821: Upper rail support
822: lower rail support 900: wall plate press-in device
910: Wall excavation part 911: Wall chain saw device
912: piston contact 913: motor
920: guide wall plate 930: wall plate press-in portion
931: Plate gripping part 940: Wall excavation part Advance part
941: Piston 942: Compact hydraulic cylinder
950: relative driving allowable portion 951: curved projection
952: curved recessed part 1000: wall chain saw guide part
1010: upper wall chain saw guide portion 1011: upper side projection
1012: upper side wheel support 1013: upper side wheel
1020: lower wall chain saw guide portion 1021: lower side protrusion
1022: lower side wheel support 1023: lower side wheel
1100: support hole for excavation 1110: upper frame
1120: lower frame 1121: soil inflow prevention plate
1130: Side frame 1140: Height adjustment unit
1150: work table 1200: permanent supporter

Claims (15)

delete delete delete In order to form a wall between the upper cavity 60 and the lower cavity 70 formed along the longitudinal direction in the ground, a number of wall plates 610 are sequentially advanced from the propulsion part 10 toward the reach part 20, and In addition, as a method for constructing a wall of an underground structure to form a wall plate assembly 600 by mutually bonding,
It includes an upper incision 801 formed by cutting the lower wall of the upper cavity 60 along the longitudinal direction, and a lower incision 802 formed by cutting the upper wall of the lower cavity 70 along the longitudinal direction. Forming a wall plate guide portion 800 for press-in of the wall plate forming guide portion 800;
The wall excavation part 910 installed in the front to excavate the ground between the upper cavity 60 and the lower cavity 70 along the height direction, and the upper and lower ends of the upper incision 801 and the lower incision 802. The guide wall plate 920 and the rear end of the guide wall plate 920, which are installed at the rear of the wall excavation unit 910 so as to be inserted and guided, are pushed toward the front, or the guide wall plate 920 A preparation step of a wall plate press-in device 900 for preparing a wall plate press-in device 900 including a wall plate press-in part 930 installed to press-in the rear end of the wall plate 610 coupled to the rear end of the wall plate;
A primary wall excavation and advancing step of excavating the ground by the wall excavation part 910 and advancing the guide wall plate 920 by the wall plate press-fitting part 930;
A primary wall plate joining step of releasing the coupling between the guide wall plate 920 and the wall plate press-in portion 930 and coupling the wall plate 610 to a rear end of the guide wall plate 920;
Secondary wall excavation and excavating the ground by the wall excavation part 910, and advancing the combination of the guide wall plate 920 and the wall plate 610 by the wall plate press-in part 930, and Forward stage;
And a second wall plate joining step of releasing the coupling between the wall plate 610 and the wall plate press-in portion 930 and joining another wall plate 610 to the rear end of the wall plate 610. and,
The wall plate press guide portion 800,
Wall upper guide rails 811 respectively formed along the longitudinal direction on the inner left and right sides of the upper incision part 801, and wall lower guide rails 812 respectively formed along the longitudinal direction on the inner left and right sides of the lower incision part 802. Including,
The wall excavation unit 910,
In addition to being installed to excavate the ground between the upper cavity 60 and the lower cavity 70 along the height direction, an upper end is exposed to the inside of the upper cavity 60 through the upper incision 801. , Wall chain saw device 911 is installed so that the lower end is exposed to the inside of the lower cavity 70 through the lower incision 802;
To the upper wall chain saw guide part 1010 and the lower wall guide rail 812 installed on the side of the upper end of the wall chain saw device 911 to contact the upper guide rail 811 of the wall and drive along the longitudinal direction. It includes; a wall chain saw guide part 1000 including a lower wall chain saw guide part 1020 installed at a side of a lower end of the wall chain saw device 911 to contact and drive along the longitudinal direction.
The wall plate press guide portion 800,
A plurality of upper rail support portions 821 installed at mutually spaced intervals on the inner left and right sides of the upper incision portion 801;
In addition to being supported by the plurality of upper rail support portions 821, the upper guide rail 811 of the wall having a “c” shaped channel structure formed with an open portion upward;
A plurality of lower rail support portions 822 installed at intervals between the inner left and right sides of the lower incision portion 802;
In addition to being supported by the plurality of lower rail support portions 822, the wall lower guide rail 812 having a "c" shaped channel structure formed toward the lower side;
Wall construction method of the underground structure comprising a. The method of claim 4,
The upper wall chain saw guide portion 1010,
An upper lateral protrusion 1011 formed on a side of the upper end of the wall chain saw device 911;
An upper lateral wheel support portion 1012 installed on the upper lateral protrusion 1011 to enable vertical driving;
It includes; the upper side wheel (1013) installed at the bottom of the upper side wheel support (1012) to be inserted into the wall upper guide rail (811) to drive;
The lower wall chain saw guide portion 1020,
A lower lateral protrusion 1021 formed on a side of the lower end of the wall chain saw device 911;
A lower lateral wheel support portion 1022 installed on the lower lateral protrusion 1021 to enable vertical driving;
A lower lateral wheel 1023 installed at an upper end of the lower lateral wheel support 1022 to be inserted into and driven by the lower guide rail 812 of the wall;
Wall construction method of the underground structure comprising a. delete In order to form a wall between the upper cavity 60 and the lower cavity 70 formed along the longitudinal direction in the ground, a number of wall plates 610 are sequentially advanced from the propulsion part 10 toward the reach part 20, and In addition, as a method for constructing a wall of an underground structure to form a wall plate assembly 600 by mutually bonding,
It includes an upper incision 801 formed by cutting the lower wall of the upper cavity 60 along the longitudinal direction, and a lower incision 802 formed by cutting the upper wall of the lower cavity 70 along the longitudinal direction. Forming a wall plate guide portion 800 for press-in of the wall plate forming guide portion 800;
The wall excavation part 910 installed in the front to excavate the ground between the upper cavity 60 and the lower cavity 70 along the height direction, and the upper and lower ends of the upper incision 801 and the lower incision 802. The guide wall plate 920 and the rear end of the guide wall plate 920, which are installed at the rear of the wall excavation unit 910 so as to be inserted and guided, are pushed toward the front, or the guide wall plate 920 A preparation step of a wall plate press-in device 900 for preparing a wall plate press-in device 900 including a wall plate press-in part 930 installed to press-in the rear end of the wall plate 610 coupled to the rear end of the wall plate;
A primary wall excavation and advancing step of excavating the ground by the wall excavation part 910 and advancing the guide wall plate 920 by the wall plate press-fitting part 930;
A primary wall plate joining step of releasing the coupling between the guide wall plate 920 and the wall plate press-in portion 930 and coupling the wall plate 610 to a rear end of the guide wall plate 920;
Secondary wall excavation and excavating the ground by the wall excavation part 910, and advancing the combination of the guide wall plate 920 and the wall plate 610 by the wall plate press-in part 930, and Forward stage;
And a second wall plate joining step of releasing the coupling between the wall plate 610 and the wall plate press-in portion 930 and joining another wall plate 610 to the rear end of the wall plate 610. and,
The guide wall plate 920,
In the state in which the guide wall plate 920 is stationary, a wall excavation part advancing part 940 installed to advance the wall excavation part 910 by advancing the piston 941 is installed,
The primary wall excavation and advancing steps,
While the guide wall plate 920 is stationary, the wall excavation part 910 is moved forward by the piston excavation drive of the wall excavation part advance part 940 as well as the excavation drive of the wall excavation part 910. A wall excavation unit 910 advancing toward the advancing stage;
A piston 441 reversing step in which the piston 941 of the wall excavation part advancement part 940 is reversely driven so that a space is formed between the wall excavation part 910 and the guide wall plate 920;
Advance step of the guide wall plate 920 to press-in and advance the guide wall plate 920 by the wall plate press-in portion 930;
Wall construction method of the underground structure comprising a. delete delete delete delete The method of claim 5,
The upper cavity 60 and the lower cavity 70 are formed in a curved structure to be curved upward, downward or lateral,
The curved structure so that the wall plate assembly 600 bent between the upper cavity 60 and the lower cavity 70 formed in the curved structure toward the same direction as the upper cavity 60 and the lower cavity 70 Wall construction method of the underground structure, characterized in that formed by. delete delete delete

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