KR20140141997A - Reinforced soil segmental retaining wall using prestressed force, and constructing method for the same - Google Patents

Reinforced soil segmental retaining wall using prestressed force, and constructing method for the same Download PDF

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Publication number
KR20140141997A
KR20140141997A KR20130063489A KR20130063489A KR20140141997A KR 20140141997 A KR20140141997 A KR 20140141997A KR 20130063489 A KR20130063489 A KR 20130063489A KR 20130063489 A KR20130063489 A KR 20130063489A KR 20140141997 A KR20140141997 A KR 20140141997A
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South Korea
Prior art keywords
block
stiffener
retaining wall
tension
tension member
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KR20130063489A
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Korean (ko)
Inventor
이성혁
이진욱
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한국철도기술연구원
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Priority to KR20130063489A priority Critical patent/KR20140141997A/en
Publication of KR20140141997A publication Critical patent/KR20140141997A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0046—Production methods using prestressing techniques
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Retaining Walls (AREA)

Abstract

Provided are a block type reinforce soil retaining wall using tension capable of preventing frost heave generated in the conventional stiffener block type retaining wall, reducing the remaining length of geotextile used for a stiffener by increasing stiffness of a wall, reducing the constructed quantity of stiffener, and suppressing deformation by integrally forming a wall by applying wall tension, and a construction method thereof. The block type reinforced soil retaining wall using tension comprises: a plain concrete foundation formed on the ground; tendon which are arranged on the plain concrete foundation and are connected and fastened in a crew manner; a stiffener block which has first and second central spaces penetrated and shared by the tendon and is stacked by a central part to form a block type front wall; and a nut which is fastened with the last tendon to apply tension when the stiffener block is stacked at a predetermined height. The nut fastened with an upper end of the tendon is rotated by tension equipment to apply tension to the tendon.

Description

Technical Field [0001] The present invention relates to a block type reinforced earth retaining wall using a tensile force and a method of constructing the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block-type reinforced earth retaining wall, and more particularly, to a block-type reinforced earth retaining wall for constructing a block-type reinforced earth retaining wall having a block type front wall by using a tension force and a construction method thereof.

Generally, the retaining wall is a wall supporting the soil, and is installed below the slope for the purpose of securing a limited amount of paper. Currently installed retaining walls include concrete retaining walls that are installed on the slope slope, and reinforced earth retaining walls that are mainly installed on the slope slope. The concrete retaining wall is a retaining wall that resists the transverse earth pressure of the slope surface by installing a free or reinforced concrete structure after the natural slope has been cut off. Further, the reinforcing earth retaining wall is formed by using the tensile resistance of the reinforcing material and the friction resistance with the soil, It is a retaining wall of structure that resists activity.

These retaining walls are the most common structures to resist earth pressure, and they are mainly used for the optimal use of land due to restriction of roads, railways, rivers, alternations. Among them, the concrete retaining wall is the most commonly used retaining wall, and the type is different according to the height of the slope considering economical efficiency and safety.

Also, the reinforced earth retaining wall functions as a retaining wall by forming a reinforced wall close to the vertical by utilizing the tensile resistance of the metal or fiber reinforcing material and the frictional resistance between the soil and the slope slope. The reinforced earth retaining wall is applied to a fillet having vertical or vertical wall, for example, a reinforcement soil method applied to a fillet having a slope of 1: 1 or more.

1A to 1D are views illustrating a case where a wall surface is applied to a reinforced earth retaining wall. 1B shows a reinforced earth retaining wall having a wall surface formed by a wrapping method using geogrid. FIG. 1C is a view showing a reinforced earth retaining wall having a wall surface formed by a concrete panel type, 1D shows a reinforced earth retaining wall having a wall surface formed in a concrete retaining wall form.

As shown in FIGS. 1A to 1D, the wall surface ball applied to the reinforced earth retaining wall may be a wrapping type, a vegetable soil type, a concrete panel type, a concrete block type, or a concrete retaining wall.

Specifically, in the case of a reinforced earth retaining wall having a wall surface formed by a wrapping method using a nonwoven fabric or the like shown in FIG. 1A, the geotextile 12 such as the foundation stone 11 and the nonwoven fabric, the embankment geotextile 13, And the like.

The reinforced earth retaining wall having the wall surface formed by the wrapping method using the geogrid shown in FIG. 1B may be applied to the vegetation soil sack 21, the geogrid 22, the horizontal drainage material 23, the joint pipe and the wooden pile 24 .

In the case of the reinforced earth retaining wall 30 having the wall surface formed by the concrete panel type shown in FIG. 1C, the concrete wall material 31 and the high-rigidity geotextile 32 are used.

In the case of the reinforced earth retaining wall 40 having the wall surface holes formed in the form of the concrete retaining wall shown in FIG. 1D, the reinforcing earth retaining wall 40 is composed of the non-surrounding concrete retaining wall 41 and the geotextile 42 such as geonet or nonwoven fabric.

2A and 2B are views showing the type of front wall and the working earth pressure, respectively. FIG. 2A is a view illustrating a working earth pressure of a field-type retaining wall type panel type, and FIG. FIG.

The front wall described above can be classified into a panel type, an in-situ retaining wall type and a block type as shown in Figs. 2A and 2B. The main effect of the front wall is to prevent the embankment from shear breaking or deformation For example, lateral pressure).

3A and 3B are views illustrating a method in which a front wall effect is not expected in design, respectively. FIG. 3A shows a front wall formed by the telemarketing method, and FIG. 3B shows a front wall formed by the geogrid method.

In the reinforcement soil method, in the case of the telescopic method shown in FIG. 3A and the geogrid method shown in FIG. 3B, the resistance of only the tensile reinforcement is considered for the expected active force of the straight or arc active surface, Do not expect.

4A and 4B are views illustrating a method of expecting a front wall effect in design, respectively. FIG. 4A shows a front wall formed by the RRR method, and FIG. 4B shows a front wall formed by an NCMA method.

The Reinforced Railroad with Rigid Facing Method (RRR) shown in FIG. 4A and the NCU (National Concrete Masonry Association) shown in FIG. 4B are expected to have a front wall effect in designing. This block type reinforced earth retaining wall is a method of expecting the weight effect of the front wall by using the concrete block together with the geogrid method.

Meanwhile, as shown in Fig. 5A, the block type retaining walls (SRWs) are formed of a conventional block retaining wall (a retaining wall), which is a structure for supporting the active force due to the back- (Conventional SRWs), and Blocked Reinforced Soil SRWs (SRWs) as a combined system consisting of stabilized reinforcing soil and blocks combined with horizontally installed geosynthetic reinforcements, as shown in FIG. 5B. 5a and 5b show block type reinforced earth retaining walls according to prior art, respectively. FIG. 5a shows conventional SRWs according to the prior art, FIG. 5b shows a block type Reinforced Soil SRWs ).

In the case of such a block-type reinforced earth retaining wall, the block and the reinforcing material are combined with each other to form a flexible structure, which is highly resistant to uneven settlement. Further, since the reinforcing material is a lattice type grid, Since the geogrid is installed on the whole surface of the backside, the soil and the stiffener are bound together and the horizontal force is canceled from the backside, so that the lateral force acting on the front wall block is extremely small.

The block type reinforced earth retaining wall according to the related art should secure safety by the gravity of the reinforcing block and the shear resistance between the reinforcing blocks. However, in some reinforced earth retaining wall sites, due to excessive earth pressure or insufficient shear resistance between the blocks, Collapse of the reinforced earth retaining wall may occur.

Korean Patent No. 10-983086 filed on Jan. 13, 2010, entitled "Method of constructing retaining wall structure by post structure and laminated block body" (Filing date: September 12, 2005), entitled "Method of constructing reinforcing soil retaining wall using a reinforcing soil retaining wall having a prestressed free surface of reinforcing soil in a horizontal direction and using the same, Korean Registered Patent No. 10-987463 filed on Apr. 8, 2008, entitled "Reinforced earth retaining wall structure and its installation method" Korean Patent No. 10-1185423 filed on Apr. 27, 2012, entitled "Multifunctional reinforced earth retaining wall and construction method thereof" Korean Patent No. 10-583294 filed on November 1, 2002, entitled "Block Prefabricated Reinforced Earth Retaining Wall Panel, Construction Method, and Stiffener for Panel Support"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and provides a block type reinforced earth retaining wall using a tension force and a method of constructing the same, which can prevent occurrence of a folding phenomenon occurring in existing reinforcing block type retaining walls .

It is another object of the present invention to provide a block type reinforced earth retaining wall using a tensioning force capable of reducing the backlash of geosynthetics used as a reinforcing material due to an increase in rigidity of a wall and reducing the amount of reinforcement attached thereto, .

Another object of the present invention is to provide a block-type reinforced earth retaining wall using a tensional force and a method of constructing the same, which can suppress the occurrence of deformation by integrating walls by introducing wall tensions.

As a means for achieving the above technical object, a block type reinforced earth retaining wall using a tensile force according to the present invention is a block type reinforced earth retaining wall having a block type front wall, A tension member disposed on the base of the non-woven concrete and connected to the male and female members in a screw-type manner; A stiffener block formed with first and second central spaces through which the tensions can be penetrated and shared, respectively, and stacked in a middle overlapping manner to form a block-type front wall; And a nut which is fastened to a last tension member so as to give a tensile force when the reinforcing member block is stacked up to a predetermined height, wherein the nut is rotated by using a tension device while a nut is fastened to the upper end of the tension member, And a torsional force is applied to the torsion bar.

Here, the reinforcing material block behaves as an integral structure as a result of imparting a tensile force to the tensile material to increase the shear resistance between the reinforcing material blocks sharing the tensile material.

Here, the stiffener block has a structure in which first and second center spaces are formed on the stiffener block main body, and when the odd-numbered layers of the stiffener block are stacked so that the stiffener blocks are stacked in the middle overlapping manner, And the tension member is arranged to pass through the first central space, and when the even-numbered layers of the stiffener block are stacked, the tension member is arranged to pass through the second central space.

Here, the tension member is a mutual connection tension member having male threads and female threads formed at both ends thereof and connected to each other in a threaded manner; And a first male screw and a second male screw at both ends, wherein the first male screw is fastened to the female screw of the interconnecting tongue, and the second male screw is fastened to the nut. .

Here, the interconnection tensions may be continuously connected while stacking the reinforcing material blocks, and the reinforcing material block may be laminated up to a predetermined height, and then the nut tightening material may be connected to the uppermost layer.

As another means for achieving the above technical object, a method of constructing a block type reinforced earth retaining wall using a tension force according to the present invention is a method of constructing a block type reinforced earth retaining wall having a block type front wall, comprising the steps of: a) Forming a concrete foundation; b) disposing a tension material on the non-woven concrete foundation at predetermined intervals; c) disposing a stiffener block through the tension material on the non-rigid concrete foundation; d) interconnecting said tension members in the form of a screw; e) laminating a next stiffener block through the connected tensions; f) confirming whether the stiffener block is stacked up to a predetermined height; And g) fastening a nut to the upper end of the last tension member when the stiffener block is laminated to a predetermined height, wherein the nut is fastened to the upper end of the tension member, Thereby imparting a tensile force to the tension member.

Here, if the stiffener block is not stacked to a predetermined height, the steps d) and e) for laminating the stiffener block while connecting the tension members are repeatedly performed.

Here, the reinforcing material block behaves as an integral structure as a result of imparting a tensile force to the tensile material to increase the shear resistance between the reinforcing material blocks sharing the tensile material.

According to the present invention, it is possible to prevent a folding phenomenon or the like occurring in a conventional reinforcing block-type retaining wall.

According to the present invention, it is possible to reduce the backlash of the geosynthetics used as the reinforcing material by increasing the stiffness of the wall, and to reduce the number of stiffeners to be attached.

According to the present invention, it is possible to suppress the occurrence of deformation by integrating the wall by the introduction of the wall tensional force.

1A to 1D are views illustrating a case where a wall surface is applied to a reinforced earth retaining wall.
2A and 2B are views showing the type of front wall and the working earth pressure, respectively.
FIGS. 3A and 3B are views illustrating a method in which a front wall effect is not expected at design time, respectively.
Figures 4A and 4B are views illustrating a method of expecting a front wall effect in design, respectively.
5A and 5B are views showing a block type reinforced earth retaining wall according to a conventional technique.
6 is a view showing a rear portion of a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention.
7 is a view showing a front portion of a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention.
8 is a view illustrating a stiffener block, a tension member, and a nut of a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention.
FIG. 9 is a view showing the concrete foundation and the tension member connection portion shown in FIG. 6 in detail.
110 is a view specifically showing the tensions and the tensions connecting portion shown in Fig.
FIG. 11 is a view showing the tie member and the nut connecting portion shown in FIG. 7 in detail.
12 is a flowchart illustrating a method of constructing a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

First, a block-type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention introduces a tension force to solve a problem of a conventional block-type reinforced earth retaining wall so that a front wall of the reinforcing block is divided into two parts as shown in FIGS. 6 and 7 Referring to FIG. 12, a block type reinforced earth retaining wall 100 using a tensile force will be described below with reference to FIGS. 6 to 11, and a construction method of a block type reinforced earth retaining wall 100 using a tensile force Will be described.

[Block-type Reinforced Earth Retaining Wall Using Tension (100)]

FIG. 6 is a view showing a rear portion of a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention, FIG. 7 is a front view of a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention, Sectional view showing the shape of a reinforced earth retaining wall integrated by using

6 and 7, a block type reinforced earth retaining wall 100 using a tensile force according to an embodiment of the present invention is a block type reinforced earth retaining wall having a block type front wall. The block type reinforced earth retaining wall includes a non-surrounding concrete foundation 110, 120, a stiffener block 130 and a nut 140 to provide a tensile force using tension deflection after fastening of the tension member 120 and the nut 140.

The no-load concrete foundation 110 is formed on the ground, and a tensile material 120 is disposed on the no-load concrete foundation 110, and is connected in a male and female connection in a screw form.

8 (b)), a male thread 121a and a female screw 121b are formed at both ends of the tension member 120 to form a mutual connection tension member 121 and a sheath And a nut tightening member 122 having a first male screw 122a and a second male screw 122b formed thereon and fastened to the nut 140. At this time, the interconnection tensions 121 are continuously connected while stacking the stiffener blocks 130. After the stiffener block 130 is stacked up to a predetermined height, the nut tightening material 122 may be connected to the upper end have. As shown in FIG. 8C, which will be described later, the nut tightening tension member 122 is a male thread-tightening forming member, and the first male thread 122a of the nut tightening member 122 is made of a non- And the second male screw 122b may be fastened to the nut 140. The second male screw 122b may be fastened to the nut 140. [

The stiffener block 130 is formed with first and second center spaces 132 and 133 through which the tension member 120 can be penetrated, and is stacked in a middle overlapping manner to form a block-type front wall. Here, the stiffener block 130 may have a structure in which the first and second center spaces 132 and 133 are formed on the stiffener block body 131 as shown in FIG. 8A) The tensile member 120 is arranged to penetrate the first central space 132 when the odd numbered layers of the stiffener block 130 are stacked so that the stiffener block 130 can be stacked in an intermediate overlapping manner And the tensile member 120 is arranged to pass through the second central space 133 when the even-numbered layers of the stiffener block 130 are stacked.

When the reinforcement block 130 is stacked up to a predetermined height, the nut 140 is fastened to the last tension member 120 so as to give a tensile force. Accordingly, when the nut 140 is fastened to the upper end of the tension member 120, the tension member 120 can be tensioned by rotating the nut 140 using the tension device.

At this time, the stiffener block 130 is operated as an integral structure because the shear resistance between the stiffeners 120 is increased and the shear resistance between the stiffener blocks 130 sharing the stressor 120 is increased.

8 is a view illustrating a stiffener block, a tension member, and a nut of a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention.

8 (a), in the block-type reinforced earth retaining wall 100 using the tensional force according to the embodiment of the present invention, the stiffener block 130 includes first and second The reinforcing member block 130 is formed in a structure in which the first and second central spaces 132 and 133 are formed. In the stacking of the odd-numbered layers of the stiffener block 130, the tension members 120 are connected through the first central space 132, The tensile material 120 may be connected through the second central space 133 when the even layers are stacked.

In addition, in the block-type reinforced earth retaining wall 100 using the tension according to the embodiment of the present invention, the tension member 120 may be formed by the tension member 121 and the nut fastening member 120, as shown in b) and c) For example.

The interconnection tension member 121 is an interconnection tension member 121 having a male screw 121a and a female screw 121b at both ends thereof and the interconnection tension member 121 is connected to the non- And is used until the stiffener block 130 is stacked.

The nut tightening tension member 122 is a male and female screw tightening member having a first male screw 122a and a second male screw 122b at both ends thereof. The uppermost layer of the stiffener block 130, The nut tightening member 122 is used. That is, the first and second male screws 122a and 122b are formed at both ends of the nut tightening material 122 so as to be fastened to the nut 140. As shown in FIG.

8, the nut 140 may be fixed to the second male screw (not shown) of the nut tightening member 122, as shown in Figure 8 (d) 122b. Thereafter, tension may be applied to the tension member 120 by rotating the nut 140 using a separate tension device.

FIG. 9 is a view specifically showing the concrete foundation and the tension member connecting portion shown in FIG. 6, FIG. 110 is a view specifically showing the tension member and the tension member connecting portion shown in FIG. 6, And a nut connecting portion.

 In block reinforced earth retaining wall 100 using tensioning force according to an embodiment of the present invention, FIG. 9 is a detailed view of a portion indicated by reference symbol A in FIG. 6, showing a connection between a concrete foundation 110 and a tension member 120 The tension member 120 may be connected to the non-rigid concrete foundation 110 and the tension member 120 may penetrate the central space of the reinforcing member block 130 The stiffener block 130 can be stacked.

Specifically, the interconnection tensions 121 are arranged in a zigzag manner on the non-woven concrete foundation 110, in order to stack the reinforcement block 130 in a middle portion overlapping manner. For example, the interconnection tensions 121 may be disposed at a location indicated by reference symbol E1 for the odd-numbered layer stacking of the stiffener block 130, and also for the even-numbered stacking of the stiffener block 130 The interconnection tensions 121 are disposed at a location indicated by the reference symbol E2 and the interconnection tensions 121 are disposed through the first central space of the stiffener block 130 during the stacking of the odd numbered layers of the stiffener block 130 And the tie straps 121 may be connected through the second central space of the stiffener block 130 when the even-numbered layers of the stiffener block 130 are stacked.

FIG. 10 is a detailed view of a portion indicated by reference numeral B in FIG. 6, showing a connecting portion between the tension member 120 and the tension member 120, and FIG. At this time, the tension member 120 is composed of a male thread 121a and a female thread 121b, which can be mutually connected to each other, so that the stressor block 130 is stacked, 120).

In block type reinforced earth retaining wall 100 using tensioning force according to an embodiment of the present invention, FIG. 11 is a detailed view of a portion denoted by reference numeral C in FIG. 7, and shows a connecting portion of tension member 120 and nut 140, The laminate of the reinforcement block 130 and the connection of the tension member 120 are repeatedly stacked to a predetermined height and then the upper part of the tension member 120, The nut 140 may be assembled to the male screw 122b and the nut 140 may be rotated using a separate tensioning device to apply the tension to the tension member 120. [

Therefore, the block-type reinforced earth retaining wall 100 using the tension according to the embodiment of the present invention can increase the shear resistance between the reinforcing material blocks 130 sharing the tensile material 120 due to the tensile force of the tensile material 120 So that the block-type reinforced earth retaining wall 100 can perform a behavior close to that of the integral structure. These characteristics can prevent the occurrence of overhanging occurring in the existing reinforced block-type retaining wall and can reduce the backlash of the geosynthetics used as the subsequent reinforcing material due to the increase in the rigidity of the wall, . In the reinforced earth retaining wall according to the related art, there is a possibility that deformation may occur when the traffic load acts due to insufficient restraining pressure in the block above the wall. However, in the block reinforcing earth retaining wall 100 using the tension according to the embodiment of the present invention, The wall can be integrated by the introduction of the torsion force, so that the occurrence of deformation can be suppressed.

[Construction method of block type reinforced earth retaining wall (100) using tension force]

12 is a flowchart illustrating a method of constructing a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention.

Referring to FIG. 12, a method of constructing a block type reinforced earth retaining wall using a tensile force according to an embodiment of the present invention is a method of constructing a block type reinforced earth retaining wall having a block type front wall. First, (S110).

Next, the tension member 120 is disposed on the non-woven concrete foundation 110 at predetermined intervals (S120).

Next, the stiffener block 130 is disposed to penetrate the tension member 120 on the non-woven concrete foundation 110 (S130). The stiffener block 130 has a structure in which the first and second center spaces 132 and 133 are formed on the stiffener block body 131. The stiffener block 130 may be stacked in a middle overlapping manner The tensile member 120 is arranged to penetrate the first central space 132 when the odd numbered layer of the stiffener block 130 is stacked and the tensile member 120 is disposed so as to stack the even numbered layers of the stiffener block 130. [ Is disposed so as to pass through the second central space (133).

Next, the following tensile material 120 is connected to the tensile material 120 in a screw form (S140). The tension member 120 has mutually connecting tension members 121 having screw threads 121a and 121b formed at both ends thereof and mutually connecting thread members 121a and 122b at both ends and a first male screw 122a and a second male screw 122b at both ends, And the second male screw 122b is fastened to the female screw 121b of the interconnection tie 121 and the second male screw 122b is fastened to the nut 140 The reinforcing material block 130 may be continuously connected while stacking the reinforcing material blocks 130. The reinforcing material block 130 may be stacked up to a predetermined height, The nut tightening member 122 is connected.

Next, the next stiffener block 130 is stacked (S150) so as to pass through the connected tension member 120. Next,

Next, it is determined whether the stiffener block 130 is stacked up to a predetermined height (S160). At this time, if the stiffener block 130 is not stacked up to a predetermined height, steps S140 and S150 described above are repeatedly performed.

Next, when the stiffener block 130 is stacked up to a predetermined height, the nut 140 is fastened to the upper end of the last tension member 120 (S170). In this case, when the nut 140 is fastened to the upper end of the tension member 120, the tension member 120 may be given a tensile force by rotating the nut 140 using a tension device. As a result, the stiffener block 130 acts as an integral structure as a result of imparting a tensile force to the stressor 120 to increase the shear resistance between the stiffener blocks 130 sharing the stressor 120.

According to the block type reinforced earth retaining wall using the tensional force according to the embodiment of the present invention, it is possible to prevent the folding phenomenon occurring in the existing reinforcing block type retaining wall, and to prevent the backlash of the geosynthetic fiber used as the reinforcing material due to the increase of the stiffness of the wall. It is possible to reduce the amount of water to be stiffened, and to prevent the deformation from occurring by integrating the walls due to the introduction of the wall tensions.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Block type reinforced earth retaining wall using tension
110: Plain concrete foundation
120: Tension material
121: Tension for interconnect
121a: male screw
121b: female thread
122: Nut fastening material (male thread-male thread forming tension material)
122a: First male screw
122b: second male screw
130: stiffener block
140: Nut

Claims (10)

In a block-type reinforced earth retaining wall (100) having a block-type front wall,
An unfilled concrete foundation 110 formed on the ground;
A tension member 120 disposed on the non-woven concrete foundation 110 and connected to the male and female members in a threaded manner;
A stiffener block 130 formed with first and second central spaces 132 and 133 through which the tension member 120 can be penetrated and shared, and which is stacked in an intermediate overlapping manner to form a block-type front wall; And
When the reinforcement block 130 is stacked up to a predetermined height, a nut 140 is fastened to the last tension member 120 so as to provide a tensile force.
, ≪ / RTI &
Wherein tension is applied to the tension member (120) by rotating the nut (140) using tensioning equipment in a state where the nut (140) is fastened to the upper end of the tension member (120) Retaining wall. The method according to claim 1,
The reinforcing member block 130 behaves as an integral structure due to the application of a tensile force to the tensile member 120 to increase the shear resistance between the reinforcing member blocks 130 sharing the tensile member 120. [ Block Type Reinforced Earth Retaining Wall. The method according to claim 1,
The stiffener block 130 has a structure in which the first and second center spaces 132 and 133 are formed on the stiffener block body 131. The stiffener block 130 includes a plurality of stiffener blocks 130, The tension member 120 is arranged to penetrate the first central space 132 when the odd numbered layers of the stiffener block 130 are stacked and the tensile member 120 is arranged at a distance And is disposed to pass through the second central space (133). The method of claim 1, wherein the tension member (120)
An interconnection tension member 121 having male and female threads 121a and 121b formed at both ends thereof to be connected to each other in a threaded manner; And
A first male screw 122a and a second male screw 122b are formed at both ends and the first male screw 122a is fastened to the female screw 121b of the interconnection tie 121, 122b are fastened to the nut 140,
Block reinforced earth retaining wall using tensile force. 5. The method of claim 4,
The interconnection tensions 121 are continuously connected while stacking the reinforcement block 130. The reinforcement block 130 is stacked up to a predetermined height and then the nut tightening material 122 is connected to the upper end Block type reinforced earth retaining wall using tension force. A method of constructing a block type reinforced earth retaining wall having a block type front wall,
a) forming an impervious concrete foundation (110) on the ground;
b) disposing a tensile material 120 at predetermined intervals on the non-woven concrete foundation 110;
c) disposing a stiffener block (130) through the tension member (120) on the impervious concrete foundation (110);
d) interconnecting the tension member (120) with a next tension member (120) in a screw form;
e) stacking the next stiffener block (130) through the connected tensioner (120);
f) confirming whether the stiffener block 130 is stacked up to a predetermined height; And
g) fastening the nut 140 to the upper end of the last tension member 120 when the stiffener block 130 is stacked up to a predetermined height
, ≪ / RTI &
Wherein tension is applied to the tension member (120) by rotating the nut (140) using tensioning equipment in a state where the nut (140) is fastened to the upper end of the tension member (120) Construction method of retaining wall. The method according to claim 6,
And d) and e) of laminating the stiffener block (300) while connecting the tensile material (120) when the stiffener block (130) is not stacked to a predetermined height are repeatedly performed. Construction Method of Block Type Reinforced Earth Retaining Wall. The method according to claim 6,
The reinforcing member block 130 behaves as an integral structure due to the application of a tensile force to the tensile member 120 to increase the shear resistance between the reinforcing member blocks 130 sharing the tensile member 120. [ Construction Method of Block Type Reinforced Earth Retaining Wall. The method according to claim 6,
The stiffener block 130 in the step c) has a structure in which the first and second center spaces 132 and 133 are formed on the stiffener block body 131. The stiffener block 130 is stacked in the middle overlapping manner, The tensile member 120 is arranged to penetrate the first central space 132 when the odd number layer of the stiffener block 130 is stacked and the tensile member 120 120) are arranged to pass through the second central space (133). 7. The apparatus of claim 6, wherein the strap (120)
An interconnection tension member 121 having male and female threads 121a and 121b formed at both ends thereof to be connected to each other in a threaded manner; And
A first male screw 122a and a second male screw 122b are formed at both ends and the first male screw 122a is fastened to the female screw 121b of the interconnection tie 121, 122b have a nut tightening member 122 fastened to the nut 140,
A method of constructing a block type reinforced earth retaining wall using a tensile force.
KR20130063489A 2013-06-03 2013-06-03 Reinforced soil segmental retaining wall using prestressed force, and constructing method for the same KR20140141997A (en)

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