KR101644950B1 - Apparatus for preventing rockfall and landslide in the upper portion of propulsion pipe - Google Patents

Apparatus for preventing rockfall and landslide in the upper portion of propulsion pipe Download PDF

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Publication number
KR101644950B1
KR101644950B1 KR1020150144627A KR20150144627A KR101644950B1 KR 101644950 B1 KR101644950 B1 KR 101644950B1 KR 1020150144627 A KR1020150144627 A KR 1020150144627A KR 20150144627 A KR20150144627 A KR 20150144627A KR 101644950 B1 KR101644950 B1 KR 101644950B1
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KR
South Korea
Prior art keywords
steel pipe
hydraulic jack
guide
rail
arc
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KR1020150144627A
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Korean (ko)
Inventor
민성기
황선영
Original Assignee
석정건설(주)
주식회사 에스티알
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D13/00—Large underground chambers; Methods or apparatus for making them
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/01—Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
    • E21D9/065—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end with devices for provisionally supporting the front face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The present invention relates to a steel pipe which is propelled by underground; A stud guide provided on an upper end side of the steel pipe; A plurality of studs supported by the pitch guide and slidably moved in the direction of the steel pipe; A rail provided on an upper portion of a rear end side of the steel pipe in a circumferential direction; And a hydraulic jack supporting one side of the rail and having a length varying to the other side and pushing a plurality of shot rods toward the tip of the steel pipe, wherein the hydraulic jack is slidably moved along the rail.

Figure R1020150144627

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for preventing fall-off and soil collapse of a propulsion tube,

The present invention relates to an apparatus for preventing an earth / sand collapse, which can prevent an accident that a worker in a propulsion pipe is injured due to the earth and rock falling from the upper part of the propulsion pipe when propelling a steel pipe.

More particularly, the present invention relates to a hydraulic jack having a plurality of studs at the upper end of a steel pipe, and a hydraulic jack at a rear end of the shaft to control the operation of the hydraulic jack, The present invention relates to an apparatus for preventing falling of a top of a propulsion tube and an apparatus for preventing collapse of a propulsion tube.

The propulsion pipe is used to newly establish and expand pipelines such as electric power, communication, gas, and water supply and sewerage. To minimize the noise, dust, subsidence, and traffic obstacles that may occur when using the existing method, It is possible to excavate the ground by pushing the steel pipe while maintaining excavation and earth pressure at the tip side.

Such a propulsion pipe prevents the collapse of the tip side during the propulsion of the steel pipe, and presses the equipment and the steel pipe by using a hydraulic jack on the rear side, and repeats this process to excavate the tunnel in the ground.

Since it is a method of pushing and pushing by a hydraulic jack during excavation work, it is advantageous from the viewpoint of safety because there is little danger of collapse. Minimization of construction pollution (traffic obstacle, noise, dust, vibration, etc.) There is an advantage that the workability is high.

Further, when excavated, the soil is introduced into the steel pipe and loaded and discharged to the outside, so that the excavated gravel can be easily discharged to the outside.

However, in the method of excavating the steel pipe, the worker inside the propulsion pipe may be injured by the earth or rock falling from the upper end side of the propulsion pipe when the steel pipe is propelled.

In order to solve such a problem, Japanese Patent Application Laid-Open No. 10-1057796 discloses a propulsion pipe structure and a propulsion pipe construction method using the same.

FIG. 1 is a perspective view illustrating a conventional guide structure for a propulsion pipe, which includes a propulsion guide pipe connected to a front end portion of a propulsion pipe to be propelled in the ground to form a propulsion path of the propulsion pipe; An annular member provided along an inner surface of the propulsion guide tube, and a guide ring having an upper portion formed with through holes penetrating in a propulsion direction; And a reinforcing rod installed on the guide ring to slide through the through hole and to slide in the propelling direction.

In the method of constructing the propulsion pipe guide structure and the method of constructing the propulsion pipe using the propulsion pipe structure, the reinforcing rod is first pushed to the ground so that the gravel under the reinforcing rod is pushed out, the gravel under the propelled reinforcing rod is pushed out, . Therefore, it is possible to prevent the soil from collapsing at the tip of the propelling tube by the reinforcing rod.

However, the conventional guide pipe structure and the propulsion pipe construction method using the same have a problem that the contact area is small due to the line contact at the point where the gravel collapses because the reinforcing rod is formed in the form of a rod.

That is, since the contact area is small, soil or rockfall falling from the upper portion of the propelling-and-moving pipe can be generated, which is vulnerable to safety accidents.

Also, since a plurality of reinforcement rods are integrally connected to each other, even if a portion of the reinforcement rod is caught by a rock or the like in front of the end of the propeller tube, the entire reinforcing rod can not be propelled, There is a problem that it is not possible to prevent a safety accident such as injury of an inside worker.

Patent Registration No. 10-1057796 (2011.08.11.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a hydraulic jack having a plurality of shooters on the upper surface of a steel pipe, In accordance with the environmental requirements such as the shape of the topography and the ground condition at the tip of the steel pipe, a plurality of shoots are extended toward the tip of the propelling tube, thereby preventing safety accidents caused by falling sand and fall from the top of the propelling tube And a device for preventing falling of the upper layer of the propulsion tube and preventing the collapse of the soil.

In order to solve the above problems, the present invention provides an apparatus for preventing falling and toppling collapse of a propulsion tube, comprising: a steel pipe propelled in the ground; A pitch guide provided at an upper end side of a steel pipe; A plurality of studs supported by the pitch guide and slidably moved in the direction of the steel pipe; A rail provided on an upper portion of a rear end side of a steel pipe in a circumferential direction; And a hydraulic jack which is supported on one side of the rail and has a length varying to the other side and pushes the plurality of shot rods to the tip side of the steel pipe, wherein the hydraulic jack is slidably moved along the rails. And an apparatus for preventing soil erosion, thereby solving the technical problem.

A hydraulic jack is provided at the rear end of the propeller so that the propeller is extended to the tip of the propeller tube. Thus, , It has a remarkable effect of preventing an accident that a worker inside the propulsion pipe is injured due to the falling sand and rockfall and preventing an excavation.

In addition, according to various environmental requirements such as the shape of the topography and the ground condition located at the tip of the propelling tube, the present invention allows a plurality of shooting fields to extend toward the tip of the propelling tube, It has a remarkable effect of minimizing the occurrence of slope and falling rock which are respectively extended and fall down.

1 is a perspective view showing a conventional guide pipe guide structure.
2 is a side cross-sectional view of an upper-layer drop-off and soil-fall prevention apparatus according to the present invention.
3 is a side cross-sectional view illustrating an example in which a shoot gun is slid toward a tip end of a steel pipe in an apparatus for preventing falling and soil collapse of a propulsion tube according to the present invention.
4 is a perspective view showing a tip end portion of a steel pipe in an apparatus for preventing falling and toppling collapse of a propulsion tube according to the present invention.
5 is a front sectional side view of AA 'in Fig.
6 is a front sectional side view of BB 'in FIG.
7 is a front cross-sectional view of CC 'in FIG.

Advantages and features of embodiments of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

A hydraulic jack is provided at a rear end of the shaft so that a plurality of shots are formed in accordance with environmental conditions such as the shape of the topography and the ground condition at the tip of the steel pipe by the operation of the hydraulic jack, The present invention relates to an apparatus for preventing falling of a top of a propulsion vessel and a device for preventing collapse of a propulsion tube, which can prevent a safety accident caused by falling of soil and rockfall from the upper side of the tip of a propelling tube.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an upper-layer dropping and soil-disruption preventing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a side sectional view of an apparatus for preventing top-down slope failure and soil erosion according to the present invention, and FIG. 3 is an example of a slope of a top- And FIG. 4 is a perspective view showing a tip portion of a steel pipe in an upper-layer dropping prevention and soil-erosion preventing apparatus according to the present invention.

The present invention relates to a method for preventing an accident in which a worker inside a propulsion tube is injured due to soil or rockfall falling from an upper part of a propulsion tube when the propulsion tube is propelled. , A rail (40), and a hydraulic jack (50).

As shown in the accompanying drawings, the steel pipe 10 is injected into the tentative work area to be excavated to the leading end side of the steel pipe 10, and thus, the noise generated by the existing open- , Ground subsidence and traffic disturbance.

The steel pipe 10 has a hollow cylindrical shape and provides a space through which the gravel 10 flows into the steel pipe 10.

At this time, a ring-shaped end reinforcement member 11 may be provided on the front end of the steel pipe 10, that is, the front end of the steel pipe 10, so as to surround the outer surface of the steel pipe 10.

As shown in FIGS. 2 and 3, the tip reinforcing member 11 is provided along the outer peripheral surface of the steel pipe 10 to minimize the wear or damage of the tip side portion of the steel pipe 10 when the steel pipe 10 is propelled Thereby protecting the steel pipe 10.

Depending on the design conditions, the tip reinforcing member 11 may be provided along the outer circumferential surface of the steel pipe 10, and a taper may be formed such that the outer diameter gradually decreases toward the tip end of the steel pipe 10.

Thus, the tip reinforcing member 11 has a shape gradually narrower toward the tip end of the steel pipe 10, thereby minimizing the friction at the time of pushing the propulsion pipe, thereby facilitating the propulsion.

The pitch guide 20 is provided at a pair of upper ends of the steel pipe 10 so as to be spaced apart from each other and supports the pitch rod 30 to be described later.

Each of the pair of the pitch guide guides 20 may have a shape corresponding thereto to support the arc-shaped stud 30a and the anti-bow pole 30b of the pole 30 described below.

As shown in FIG. 5, the arc-shaped extrusion head 30a has an arc-shaped overall shape corresponding to the inner circumferential surface of the steel pipe 10, Preventing bulges 30b having a long shape can be supported.

At this time, the foreshow guide 20 may be provided with an engaging member 21 extending upward from both ends thereof, and is engaged with the inner circumferential surface of the steel pipe 10 by the engaging member 21.

A plurality of pushing rods 30 are provided and are supported by the pitch guide 20 and slidably moved in the direction of movement of the steel pipe 10, respectively.

The plurality of pushing rods 30 are slidably moved in the direction of movement of the steel pipe 10, respectively.

As shown in FIG. 4, the push rod 30 is formed in an arc shape as a whole, and is provided with an arc-shaped push rod 30a corresponding to the inner circumferential surface of the steel pipe 10, And a bending prevention stud 30b having a relatively long height may be provided between the arbor studs 30a.

Therefore, the plurality of shot studs 30 are slid to the tip end side of the steel pipe 10 by the operation of the hydraulic jack 50 described later. Accordingly, due to the falling of the soil from the upper portion of the steel pipe 10 The prevention of a safety accident is prevented and the resistance against the bending which may be caused by the earth pressure acting from the upper side to the lower side can be maximized by the provision of the bending prevention throwing port 30b between the arc-shaped pushing rods 30a.

The plurality of arc-shaped pickets 30a and the anti-flexural shot rods 30b are slid to the tip of the steel pipe 10 by the operation of the hydraulic jack 50 described later, The prevention of a safety accident caused by falling of soil or rockfall and the provision of the bending prevention throwing field 30b between the arc-shaped pushing rods 30a can secure a large resistance against earth pressure acting from the upper side to the lower side , It is possible to maximize the resistance against bending of the lighted rod 30 having a shape that is slid to the tip side of the steel pipe 10 and protruded.

The plurality of shot studs 30 are slid to the leading end side of the steel pipe 10 so that each of the plurality of shot studs 30 is moved as far as possible to the leading end side of the steel pipe 10 in accordance with the environmental requirements such as the topography, .

Further, since the gap between the plurality of shot studs 30 can be minimized, it is possible to minimize the inflow of the gravel or the like falling into the gap.

Depending on the design conditions, the size and number of the plurality of studs 30 may be varied depending on the diameter of the steel pipe 10.

For example, in the case of a small-diameter steel pipe 10, the size of the take-up spool 30 may be made small to correspond to the small-diameter steel pipe 10, and may be 4 to 6, The size of the push rod 30 may be formed to be large and corresponding to the diameter of the steel pipe 10 and may be 6 to 9 pieces.

The hooking jaw 31 is formed to extend downward to the rear end of each of the artillery rods 30 and when the artillery 30 is slid toward the tip end of the steel pipe 10, So that the picket line 30 is no longer slidably moved to the leading end side of the steel pipe 10.

Thus, it is possible to prevent the picket line 30, which is slidingly moved to the tip side of the steel pipe 10, from being separated.

The rail 40 is provided on the upper side of the rear end of the steel pipe 10 and supports the hydraulic jack 50 to be described later and includes a front end rail guide 41 and a rear end rail guide 42.

The rail 40 has a hydraulic jack 50 slidably moved along the rail 40 by allowing the hydraulic jack 50 to slide left and right along the rail 40 while supporting the hydraulic jack 50, It is possible to slidably move each of the plurality of shot elec- trodes 30 to the tip end side of the steel pipe 10. [

The end rail guide 41 is provided on the rear end side of the steel pipe 10 and is provided between the pitch guide 20 and the rear rail guide 42 to support the front end of the hydraulic jack 50 6, the arc tube 10 has an arc shape corresponding to the inner circumferential surface of the steel pipe 10, and is spaced apart from the inner circumferential surface on the upper side of the steel pipe 10, and between the steel pipe 10 and the end rail guide 41 The front end side of the hydraulic jack 50 to be described later is supported.

At this time, the arc-shaped end rail guide 41 is provided with an engaging member 43 extending upwardly at both ends, and is engaged with the inner circumferential surface of the steel pipe 10 by the engaging member 43.

The rear rail guide 42 is provided at an upper portion of the rear end of the steel pipe 10 and functions to support the rear end of a hydraulic jack 50 described later. As shown in Figs. 2 and 3, (Not shown) supports the lower side of the hydraulic jack 50 and a support wall (not shown) formed on the rear side supports the rear side of the hydraulic jack 50 .

As shown in FIG. 7, the rear rail guide 42 is formed in a generally arcuate shape. Each of the opposite ends of the arc-shaped rear rail guide 42 is provided with an engagement member 43 extending upward, To the inner circumferential surface of the steel pipe (10).

The rear rail guide 42 is supported by a hydraulic jack 50 whose length is variable toward the other side by supporting one side of the hydraulic jack 50, that is, the rear side of the hydraulic jack 50, 50 can be pushed to the tip end side of the steel pipe 10.

At this time, the fixing wall 45 may be provided on the rear end side of the support wall of the rear rail guide 42.

2 and 3, the fixing wall 45 is integrally formed in a triangular shape and is fixedly coupled to one side of the supporting wall of the rear rail guide 42, and the upper side is fixedly coupled to the inner peripheral surface of the steel pipe 10 . In this case, the fixing of the fixing wall can be achieved by welding.

Accordingly, the fixing wall 45 can firmly support the rear rail guide 42, thereby securing a large resistance against the repulsive force generated in the operation of the hydraulic jack 50, so that the operation of the hydraulic jack 50 can be stabilized .

According to the design conditions, the fixing wall 45 may be the same as the number of the throwing rods 30 as described with reference to FIG.

A repulsive force is generated when the fixed hydraulic jack 50 is operated so as to push each of the plurality of shot studs 30. At this time, in order to correspond to the push rod 30 provided at the pushing position of the hydraulic jack 50, The hydraulic jack 50 can be more stably supported in response to the repulsive force of the hydraulic jack 50.

The hydraulic jack 50 is slidably moved left and right along the longitudinal direction of the rail 40. One end of the hydraulic jack 50 is supported by the rail 40 and the length of the hydraulic jack 50 is changed toward the other side, 10 toward the tip end side.

At this time, the hydraulic jack 50 may be provided with a wheel 51 so that the hydraulic jack 50 can be easily moved in the longitudinal direction of the rail 40.

Here, the hydraulic jack (Jack, 50) is a device for obtaining the lifting or pushing force by using the hydraulic pressure, and there is a manual type, an electric type or an engine type depending on the method of applying the hydraulic pressure.

The driving method of the hydraulic jack 50 according to the present invention can be carried out by any driving method as long as it can be pushed toward the tip end of the steel pipe 10 by being supported by the rail 40 using a conventionally known technique. have.

The wheels 51 may be disposed in a pair of rows on the front end side and the rear end side of the hydraulic jack 50 so as to be in contact with the steel pipe 10 and the rail 40, respectively.

2 and 3, the upper end of the hydraulic jack 50 is in contact with the inner circumferential surface of the steel pipe 10, and the wheels 51 And a wheel 51 may be provided on the upper portion of the rear end of the hydraulic jack 50 so as to be in contact with the inner circumferential surface of the steel pipe 10 and to contact the rear rail guide 42 at the lower portion thereof.

The wheels 51 allow the hydraulic jack 50 to roll and allow the hydraulic jack 50 to slide smoothly along the length of the rail 40.

At this time, the wheel 51 may be in the form of a ball transfer or a ball caster.

The ball transfer or the ball caster is fixed and supported so as to be freely rotatable on a portion where the wheel 51 is attached, that is, on the outside of the hydraulic jack 50, and the outer part of the ball is supported on the inner peripheral surface of the steel pipe 10 So that the hydraulic jack 50 is freely slidable to the left and right along the longitudinal direction of the rail 40. In this way,

On the other hand, in order to accurately push the pitch stud 30 to the leading end side of the steel pipe 10, the direction in which the push rod 30 is slid and the direction in which the hydraulic jack 50 is operated and pushed out should correspond to each other. When the hydraulic jack 50 is slid to the left and right along the hydraulic jack 50, the direction in which the hydraulic rod jack 30 and the hydraulic jack 50 mutually correspond may be displaced due to vibration or the like generated by the operation of the hydraulic jack 50. [

In accordance with the design conditions of the present invention, the inner surface of the steel pipe 10 and the upper surface of the front end rail guide 41 and the rear end rail guide 42, A groove (not shown in the drawing) may be formed so that a portion thereof can be inserted and guided.

This groove is formed in the direction in which the hydraulic jack 50 is slid so that the rolling motion of the wheel 51 is smooth during the slide movement of the hydraulic jack 50 and the hydraulic jack 50 is positioned in the rail 40 do.

According to such a configuration, the plurality of shot studs 30 are slid toward the tip end side of the steel pipe 10 by the operation of the hydraulic jack 50 when the propeller is propelled, whereby the length of the steel pipe 10 projecting toward the tip end side is variable It is possible to prevent an accident that an operator inside the propulsion pipe is injured by the earth and rock falling from the upper part of the propulsion pipe, and to prevent the excavation.

In addition, since the hydraulic jack 50 is configured to be slid left and right along the rail 40, the variable lengths of the plurality of shot studs 30 can be adjusted. Therefore, the shape of the topography and the ground condition So that the number of the throwing rods 30 can be extended to minimize the number of safety accidents due to the occurrence of the falling sand and rockfall.

Thus, the work stability can be secured, and there is an advantage that the work is easy.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It can be understood that branch substitution, modification and change are possible.

10: steel pipe 11:
20: a pitch guide 21: a coupling member
30: Sodo 30a:
30b: anti-warp rod 31: latching jaw
40: rail 41: end rail guide
42: rear end rail guide 43: engaging member
45: fixed wall 50: hydraulic jack
51: Wheel

Claims (10)

A steel pipe 10 propelled into the ground;
A pitch guide (20) provided on an upper end side of the steel pipe (10);
A plurality of studs 30 supported by the pitch guide 20 and slidably moved in the direction of movement of the steel pipe 10;
A rail 40 provided at an upper portion of a rear end side of the steel pipe 10; And
And a hydraulic jack 50 which is supported on one side of the rail 40 and whose length is variable on the other side so as to push the plurality of shot studs 30 toward the tip of the steel pipe 10,
The hydraulic jack 50 is slidably moved along the rail 40,
The sunroof guide (20)
A pair,
Each of the pair of pitch guide guides 20 has a shape corresponding to the inner circumferential surface of the steel pipe 10 and is spaced apart from the inner circumferential surface of the upper side of the steel pipe 10, (21) is coupled to the inner circumferential surface of the steel pipe (10) by the engaging member (21)
The sunroof (30)
An arc-shaped stud bolt 30a in the form of an arc corresponding to the inner circumferential surface of the steel pipe 10; And
And an anti-bending stud 30b provided between the arc-shaped studs 30a and having a height that is relatively longer than the width of the cross section,
The operation of the hydraulic jack 50 causes one arched elbow 30a and one or two warp preventing elbows 30b adjacent thereto to slide in the propelling direction of the steel pipe 10, Lt; / RTI >
The sunroof guide (20)
The arc-shaped picket line 30a having a shape corresponding to the arc-shaped picket line 30a and the bending prevention picket line 30b and having a width larger than the height of the cross-section, (30b) having a long height are supported so that they can be supported,
The sunroof (30)
And a locking protrusion 31 extending downward is formed at the rear end,
When the picket line 30 is slid to the distal end side of the steel pipe 10, the catching jaw 31 is engaged with the pitch guide 20 to separate the picket line 30 which is slid to the tip side of the steel pipe 10 In addition,
The rail (40)
A front end rail guide 41 for supporting a front end side of the hydraulic jack 50; And
And a rear end rail guide (42) for supporting a rear end side of the hydraulic jack (50)
The end rail guide (41)
And an engaging member 43 is provided at both ends of the arc-shaped end rail guide 41. The engaging members 43 are provided at both ends of the arc-shaped end rail guide 41 and are spaced apart from the inner peripheral surface of the upper side of the steel pipe 10 And is coupled to the inner circumferential surface of the steel pipe 10 by the engaging member 43,
The rear end rail guide 42 has an arc shape corresponding to the inner circumferential surface of the steel pipe 10 and is formed in the shape of a cross section and has an engaging member 43 at both ends of the arc- And is coupled to the inner circumferential surface of the steel pipe 10 by the engaging member 43,
And a fixing wall 45 supported on the other side of the rail 40 and fixedly coupled to an inner circumferential surface of the steel pipe 10,
The fixed wall (45)
And is welded and fixed to one side of the support wall of the rear rail guide 42. The upper end of the steel pipe 10 is welded and fixedly coupled to the inner circumferential surface of the steel pipe 10, The hydraulic jack 50 is provided at a position corresponding to the central portion of each of the fork arms 30 including the arc-shaped stud 30a and the anti-deflection stud 30b, 45,
The hydraulic jack (50)
A plurality of wheels 51 that are in rolling contact with the steel pipe 10 and the rails 40 are provided,
Wherein grooves are formed on the inner circumferential surface of the steel pipe 10 and on the upper side surfaces of the end rail guide 41 and the rear rail guide 42 so that a part of the wheel 51 is inserted and guided. Collapse prevention device.
The method according to claim 1,
The steel pipe (10)
And an end reinforcement member (11) provided along the outer peripheral surface of the tip end.
The method of claim 2,
The distal end reinforcing member (11)
And a taper is formed to gradually decrease in outer diameter toward the tip side of the steel pipe (10).
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102153580B1 (en) * 2020-04-14 2020-09-08 주식회사 지오건설 Horizontal control based propulsion system and method for constructing propulsion pipe using the same
KR102161621B1 (en) * 2020-04-14 2020-10-05 주식회사 지오건설 Large diameter propulsion pipe with buckling prevention module and method for constructing concrete box using the same

Citations (5)

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JPH0492089A (en) * 1990-08-03 1992-03-25 Komatsu Ltd Mounting construction of shield jack
JPH04347298A (en) * 1991-05-24 1992-12-02 Mitsui Constr Co Ltd Tunnel excavator
KR101057796B1 (en) 2011-03-09 2011-08-19 한미기초개발주식회사 Structure for guiding propulsion pipe and method for constructing propulsion pipe using the same
KR101065872B1 (en) * 2011-03-18 2011-09-19 백종익 Front pipe with nozzle for pipe propulsion
KR101245649B1 (en) * 2012-10-10 2013-03-22 이상혁 Apparatus for pressing steel pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0492089A (en) * 1990-08-03 1992-03-25 Komatsu Ltd Mounting construction of shield jack
JPH04347298A (en) * 1991-05-24 1992-12-02 Mitsui Constr Co Ltd Tunnel excavator
KR101057796B1 (en) 2011-03-09 2011-08-19 한미기초개발주식회사 Structure for guiding propulsion pipe and method for constructing propulsion pipe using the same
KR101065872B1 (en) * 2011-03-18 2011-09-19 백종익 Front pipe with nozzle for pipe propulsion
KR101245649B1 (en) * 2012-10-10 2013-03-22 이상혁 Apparatus for pressing steel pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102153580B1 (en) * 2020-04-14 2020-09-08 주식회사 지오건설 Horizontal control based propulsion system and method for constructing propulsion pipe using the same
KR102161621B1 (en) * 2020-04-14 2020-10-05 주식회사 지오건설 Large diameter propulsion pipe with buckling prevention module and method for constructing concrete box using the same

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