KR101761477B1 - Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block - Google Patents

Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block Download PDF

Info

Publication number
KR101761477B1
KR101761477B1 KR1020150106862A KR20150106862A KR101761477B1 KR 101761477 B1 KR101761477 B1 KR 101761477B1 KR 1020150106862 A KR1020150106862 A KR 1020150106862A KR 20150106862 A KR20150106862 A KR 20150106862A KR 101761477 B1 KR101761477 B1 KR 101761477B1
Authority
KR
South Korea
Prior art keywords
base plate
reinforcing
bridge
girder
spreading base
Prior art date
Application number
KR1020150106862A
Other languages
Korean (ko)
Other versions
KR20170014097A (en
Inventor
박종면
김영호
김태원
김진배
Original Assignee
(주)지승컨설턴트
박종면
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)지승컨설턴트, 박종면 filed Critical (주)지승컨설턴트
Priority to KR1020150106862A priority Critical patent/KR101761477B1/en
Publication of KR20170014097A publication Critical patent/KR20170014097A/en
Application granted granted Critical
Publication of KR101761477B1 publication Critical patent/KR101761477B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/02—Piers; Abutments ; Protecting same against drifting ice
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion joints
    • E01D19/067—Flat continuous joints cast in situ
    • 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
    • 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
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill

Abstract

The present invention relates to a method of constructing a non-jointed bridge using a laminated type geosynthetic reinforcement soil layer and a spreading foundation plate, and more particularly, to a method of constructing a bridge- The present invention relates to a method of constructing a joint-free bridge capable of omitting an alternative construction step.
A method for constructing a non-jointed bridge using a laminated geotextile reinforced soil based wall and a spreading base plate according to a preferred embodiment of the present invention comprises the steps of: (a) excavating a foundation corresponding to both ends of a bridge and constructing a foundation stand; (b) horizontally arranging the front block on the top surface of the foundation block (B) in a direction perpendicular to the throat axis, laying the reinforcing soil on the back surface of the front block by the height of the front block, and laminating the geosynthetics on the front block, (c) repeating the step (b) of forming the reinforcing soil layer from the lower part to the upper part, and in the uppermost three or more reinforcing soil layers, one or more additional geosynthetic fibers are installed between the geosynthetic fibers, Constructing a body wall; (d) mounting the spreading base plate on the upper surface of the reinforcing body wall provided with the additional geosynthetic fiber, to the rear surface of the front wall; And (e) installing an end of the end portion expanding girder on the spreading base plate.

Description

Technical Field [0001] The present invention relates to a method of constructing a jointless bridge using a reinforced earth-

The present invention relates to a method of constructing a non-jointed bridge using a laminated type geosynthetic reinforced soil foundation wall and a spreading foundation plate, and more particularly, to a method of constructing a bridge- The present invention relates to a method of constructing a joint-free bridge capable of omitting an alternative construction step.

Bridges installed to cross rivers, valleys or lower roads consist of upper structures including girders and slabs, and lower structures of alternation and piers, so that the loads of the upper structures are transferred to the ground through the lower structure. In addition, it is general that most of the shifts have a structure that supports the shift through a backfill section in the form of a retaining wall at the rear of the shift.

In order to construct an alternation at the bridge construction, it is necessary to secure a space for constructing the inverted-T type reinforced concrete structure, so large-scale civil engineering works are required, such as installation of a roof tile, This requires air for the preparation work in order to construct the shift, and it takes a long period of time to process because the period of the formwork, rebar assembly, concrete casting, curing is required to construct the alternation of the reinforced concrete structure itself. It becomes a factor of rising.

It is common to carry out the compaction soil using the soil and the backfill area in the rear of the alternation is a factor of the residual settlement if the air and water contained in the soil are deviated after the lapse of time. In other words, there is air and moisture between the soil particles. This moisture and air can be discharged to some extent by compaction, but it is impossible to completely eliminate them. Particularly, due to the nature of construction, It is difficult to expect good compaction, so that there are many residual settlement factors.

As a background of the present invention, there is a road-bridge pavement integrated structure and a construction method thereof (Patent Document 1) of the registered patent 10-1341147. This patent discloses a road-bridge structure composed of a bridge portion and a road portion on both sides of the bridge portion. In the bridge portion, a plurality of bridge portions are disposed between the two alternating portions, and a girder is provided on the upper portion of the bridge portion and the bridge portion, The road portion includes a road pavement portion formed on the top of the soil, and the bridge pavement portion and the road pavement portion are integrally formed of continuous reinforced concrete to form a concrete pavement portion. - We propose an integrated structure between the bridges. This patented road-bridge pavement unified structure forms a concrete pavement by integrally forming the bridge pavement part and the road pavement part with continuous reinforced concrete without connection part, so that the damage caused in the joint and the damage due to the subsurface layer settlement Although there is an advantage that can be fundamentally prevented, there is a disadvantage that it is uneconomical and increases the air accompanied by large-scale civil engineering work for construction of alternation and alternation construction.

Patent Registration No. 10-1341147 'Road-bridge pavement integrated structure and its construction method'

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art described above, and it is therefore an object of the present invention to provide an air conditioner and an air conditioner, It is an object of the present invention to provide a method of constructing a non-jointed bridge using a laminated type geosynthetic fiber reinforced soil foundation wall and a spreading foundation plate.

In addition, there is a jointless bridge construction method using a layered geosynthetic reinforced soil foundation wall and a spreading foundation plate which can reduce the maintenance cost owing to the omission of an alternate shoe and an expansion joint. The purpose is to provide.

In addition, by introducing the reinforced soil method instead of the compaction soil, the horizontal direction deformation of the reinforced soil due to the vertical load and the residual settlement by inducing the tensile force due to the frictional force between the geosynthetic fiber and the reinforcing soil by embedding the geosynthetic fiber in the horizontal direction inside the reinforced soil And to provide a method of constructing a joint-free bridge using a laminated type geosynthetic fiber reinforced soil foundation wall and a spreading foundation plate which effectively prevent a collapse of the bridge and secure a stable supporting force.

A method for constructing a non-jointed bridge using a laminated geotextile reinforced soil based wall and a spreading base plate according to a preferred embodiment of the present invention comprises the steps of: (a) excavating a foundation corresponding to both ends of a bridge and constructing a foundation stand; (b) horizontally arranging the front block on the upper surface of the foundation block in a direction orthogonal to the throttling axis, laying the reinforcing soil on the back surface of the front block by the height of the front block, and laminating the geosynthetic fiber on the upper surface thereof; (c) repeating the step (b) of forming the reinforcing soil layer from the lower part to the upper part, and in the uppermost three or more reinforcing soil layers, one or more additional geosynthetic fibers are installed between the geosynthetic fibers, Constructing a body wall; (d) mounting the spreading base plate on the upper surface of the reinforcing body wall provided with the additional geosynthetic fiber, to the rear surface of the front wall; And (e) installing an end of the end portion expanding girder on the spreading base plate.

At this time, in step (e), the hinge bar of the spreading base plate is inserted into the hollow portion of the end portion expanding girder, and the projection of the spreading base plate is inserted into the projection engaging groove of the end expanding girder. The end of the end portion expanding girder can be installed on the upper portion of the spreading base plate.

(E) After step (f), the process of laminating the reinforcing soil on the back surface of the spreading foundation plate and the end extension girder and laminating the geosynthetic fiber on the upper surface of the reinforcing soil is repeated until the height of the end expansion girder Completing a roadside backfill; And (g) completing and finishing a package on the upper side of the end portion expanding girder and on the upper side of the roadside backfill.

Or (e) after step (f), the process of laminating the reinforcing soil on the back surface of the spreading base plate and laminating the geosynthetic fiber on the upper surface of the reinforcing soil is repeated until the height of the upper surface of the spreading plate Placing a connecting slab on the upper surface of the supporting plate of the foundation plate and the upper surface of the reinforcing body; And (g) completing and finishing the package on the upper side of the end-expanding girder and on the upper side of the connecting slab.

Here, the end portion expanding girder can be joined to the upper portion of the spreading base plate by two or more of the end portions in the longitudinal direction of the spreading base plate.

On the other hand, a cushion pad can be installed on the upper back surface of the front wall so as to support the lower side of the bridge side of the spreading base plate.

At this time, the front block is made of precast concrete so as to have a hollow portion at the center, and is stacked so that the upper and lower sides are shifted from each other. The connecting reinforcing bars are inserted into the hollow portions of the three or more front blocks constituting the upper end of the front wall, .

Here, the end portion expanding girder may be constituted by an H-shaped steel or an I-shaped steel in the longitudinal center portion and an end block of the PC expanded in the width direction.

Since the method of constructing a non-jointed bridge using the laminated type geosynthetic fiber reinforced soil foundation wall and the spreading foundation plate according to the present invention omits the alternate construction step, it is unnecessary to construct a large scale civil engineering work for the alternate construction, Which is economical and can be rapidly built.

Also, owing to the omission of the shift, the shoe and the expansion joint, which are the accessory facilities, are omitted, thereby reducing the maintenance cost.

In addition, by introducing the reinforced soil method instead of the compaction soil, the horizontal direction deformation of the reinforced soil due to the vertical load and the residual settlement by inducing the tensile force due to the frictional force between the geosynthetic fiber and the reinforcing soil by embedding the geosynthetic fiber in the horizontal direction inside the reinforced soil Thereby effectively securing a stable supporting force.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
FIG. 1 is a cross-sectional view illustrating a method for constructing a joint-free bridge using a laminated geopolymer-reinforced-geotechnical wall and a spreading base plate according to an embodiment of the present invention.
2 is a perspective view of a front wall according to the present invention.
3 is a perspective view of a spreading base plate and an end extension girder according to an embodiment of the present invention.
4 is a cross-sectional view sequentially illustrating a method of constructing a non-jointed bridge using a layered geopolymer-based reinforcing-material-layered structure and a spreading base plate according to another embodiment of the present invention.
5 is a perspective view of a spreader base plate according to another embodiment of the present invention.
6 is a perspective view showing various embodiments of the end portion expansion girder according to the present invention.
FIG. 7A is a partially enlarged view of FIG. 1F, and FIG. 7B is a partially enlarged view of FIG. 4F.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

FIG. 1 is a cross-sectional view illustrating a method for constructing a joint-free bridge using a laminated geopolymer-reinforced-geotechnical wall and a spreading base plate according to an embodiment of the present invention.

As shown in FIG. 1A, the method for constructing a non-jointed bridge using the laminated type geosynthetic fiber reinforced soil foundation wall and the spreading base plate according to the present invention comprises: (Step S100).

Herein, all processes are carried out according to any method known in the art. For example, the construction of the base (B) can be carried out by compaction as shown in the drawing. In addition, various methods such as installing a concrete structure have.

The base block B is formed of a foundation formed by the front wall 10 by laminating the front block 11 described later, and is constructed around the periphery of both ends of the bridge.

1B, the front block 11 is horizontally arranged on the upper surface of the foundation block B in a direction orthogonal to the throttling axis and the reinforcing body 20 is placed on the rear surface of the front block 11 to a height of the front block 11 And the layer of the geosynthetic fibers 30 is laminated on the upper portion of the reinforced soil layer wall by repeating the layering process from the lower side to the upper side (Step S200).

Since the reinforcing soil method is widely known in this field, the front block 11, the reinforcing soil 20, the geosynthetic fiber 30 and the lamination method are not limited to specific ones, One embodiment will be briefly described.

2 is a perspective view of a front wall according to the present invention.

The front wall 10 is formed by stacking a plurality of front blocks 11. The front block 11 is made of precast concrete PC and has a hollow portion 111 at its center as shown in FIG. And it is preferable that the hollow portion 111 formed at the center and the hollow portion 111 at both sides thereof are cut in half. The shape of the front block 11 and the number of the hollow portions 111 are not limited to those illustrated. The shape of the hollow portion 111 may also be various shapes such as a rectangle, an ellipse, a circle, and a polygon. When the front blocks 10 are formed by laminating the front blocks 11, it is preferable to stack them so that they are vertically shifted from each other as shown in Fig.

The front wall 10 according to the present invention is formed by stacking the front blocks 11 made of PC instead of forming the front wall of the retaining wall using the conventional concrete pouring, And the construction period can be shortened.

When the precast block 11 is formed as one layer in the horizontal direction, the reinforcing layer 20 is formed in the rear surface of the front block 11, that is, the front wall 10, And the rear wall of the front wall 10 is folded to conform to the height. Each time the front block 11 is sequentially layered, the reinforcing soil 20 is filled in the rear of the front wall 10 in accordance with the height. It is preferable to use a well mixed crushed stone material to minimize the residual settling amount of the reinforcing soil body 20.

The geosynthetic fiber 30 is formed by forming the front block 11 as a single layer and then filling the reinforcing soil 20 on the rear side of the front wall 10 and laminating the geosynthetic fiber 30 on the top side, It is preferable to be laminated so as to be placed on top of the block 11. [ That is, one end of the geoscientific fibers 30 is engaged and fixed between the upper and lower front block 11, 11. Or may be connected to the back surface of the front block 11 and stacked.

The geosynthetic fibers 30 can be made of conventional geosynthetic fibers having low extensibility in order to reduce the horizontal displacement of the reinforcing soil body 20 and prevent displacements caused by repeated loads of the bridge due to the passage. For example, It is possible to reinforce tensile resistance and friction resistance by using geo-textile such as bidirectional geotextile, geogrid, band-like fiber, or metal reinforcement such as strip or grid.

The geosynthetic fibers 30 are installed in the reinforcing soil body 20 in the horizontal direction to prevent the reinforcing earth body 20 from being deformed in the horizontal direction due to the vertical load or the residual settlement.

The process of stacking one layer of the front block 11, the backing 11 of the front block 11, the embedding of the reinforcing soil 20 and the topping of the geosynthetic fibers 30 on the upper surface of the reinforcing soil 20 is repeatedly completed to the designed height. At this time, when constructing the uppermost three layers or more, two or more layers of geoscientific fibers 30 and 31 are formed in the reinforcing soil 20 corresponding to one layer of the front block 11. That is, as shown in FIG. 1, when the uppermost three layers or more (five layers in the drawing) of the front block 11 constituting the upper end of the front wall 10 are formed, one row and additional geosynthetic fibers 31 are further provided between the geosynthetic fibers 30 horizontally installed in the layer. The reinforcing soil body 20 is partially grounded and compacted by a predetermined height instead of the entire height of one layer of the front block 11 and the additional geosynthetic fibers 31 are horizontally arranged on the back surface of the upper and the front walls, The upper part is to be filled with sand.

This is because the present invention is designed such that the load of the bridge superstructure is transmitted alternately to the reinforcing earth wall reinforced with the geosynthetic fiber rather than alternately, and the reinforcement soil 20 is more closely reinforced so that the load is uniformly transmitted to the reinforcing- Thereby reinforcing the reinforcing soil 20 at the position where the spreading base plate 40 is to be mounted. The additional geosynthetic fiber 31 may be made of the same material as the geosynthetic fiber 30 but may be formed to have a shorter length than the geosynthetic fiber 30 as shown in the drawing. Quot; width ".

In addition, a connecting reinforcing bar 70 and a cushioning pad 80 may be further provided at the upper end of the reinforcing-material-layer wall, which will be described later in detail with reference to the detailed drawings.

Next, as shown in FIG. 1C, the spreading base plate 40 is mounted on the backing surface of the front wall 10 at a predetermined interval on the upper surface of the reinforcing member 20 (step S300).

3 is a perspective view of a spreading base plate and an end extension girder according to an embodiment of the present invention.

3, the spreading base plate 40 according to the present invention is manufactured as a precast concrete (PC) block, and includes a block body 41, a block body 41, And a hinge bar 43 protruding upward at a predetermined interval in the longitudinal direction on the upper surface of the protrusion 42. The protrusion 42 protrudes upward with respect to the entire length of the block body 41 at the center of the upper surface of the protrusion 42, (The end extension girder 50 shown in Fig. 3 will be described in the next step)

1C, a load generated in the bridge, such as the weight of the vehicle and the weight of the structure, is transmitted to the front wall 10 and the rear wall of the front wall 10, So that the front block 11 is prevented from cracking. That is, the load of the bridge superstructure is transmitted to the ground wall of the reinforcing soil body 20 reinforced with the geoscientific fibers 30 and 31 through the spreading base plate 40, so that no load is transmitted to the front wall 10.

Next, as shown in FIG. 1D, an end of the end portion expanding girder 50 is installed on the spreading base plate 40 (S400).

3, the end portion expanding girder 50 according to the present invention is made of precast concrete PC and includes an end block 51 extending in the width direction, And a hollow portion 53 formed at two or more ends of the end block 51 at the end portion.

The protrusion engagement groove 52 of the end extension girder 50 is configured to correspond to the protrusion 42 of the spreading base plate 40 and the hollow portion 53 of the end extension girder 50 is configured to correspond to the spread base plate 40, The hinge bar 43 of the first embodiment.

In the present embodiment, the end extension girder 50 is formed as a wide PC beam having a wide width over its entire length. However, the present invention is not limited to this, .

1D, the hinge bar 43 of the spreading base plate 40 is inserted into the hollow portion 53 formed at the end portion of the end portion expanding girder 50 constructed as described above, The protrusion 42 of the spreading base plate 40 is inserted and installed on the spreading base plate 40. It is preferable that the hollow portion 53 into which the hinge bar 43 is inserted is filled with a filling material so that the spreading base plate 40 and the end portion expanding girder 50 are integrated.

3, the end extension girder 50 is coupled to the upper portion of the spreading base plate 40 so that two or more extended ends of the spreading base plate 40 are adjacent to each other in the longitudinal direction of the spreading base plate 40, (40) is a means for transmitting the load from the end portion expanding girder (50) to the reinforced soil foundation wall, and means for holding a plurality of end portion expanding girders (50) in a direction perpendicular to the throat. In constructing the bridge with a plurality of girders, the end portions of the plurality of girders should be positioned in a straight line so as to have a horizontal or constant angle, and the spreading base plate 40 of the present invention has the end portions of the plurality of end portion expanding girders 50, (To be horizontal in most cases).

Then, as shown in FIG. 1E, the reinforcing soil 20 is filled in the back surface of the spreading base plate 40 and the end expansion girder 50, and the geosynthetic fibers 30 are laminated on the upper surface of the reinforcing soil 20 The back layer of the end girder 50 is repeated up to the height of the upper surface of the end girder 50 to complete the back side of the road (S500).

Finally, as shown in FIG. 1F, the package 60 is completed and finished on the upper surface of the end portion expansion girder 50 and the road surface side (S600).

4 is a cross-sectional view sequentially illustrating a method of constructing a non-jointed bridge using a layered geopolymer-based reinforcing-material-layered structure and a spreading base plate according to another embodiment of the present invention.

The present embodiment differs from the previous embodiment in the structure of the spreader base plate 40a, but the construction and the construction procedure are the same as those of the spreader base plate 40a, so repeated description will be omitted.

5 is a perspective view of a spreader base plate according to another embodiment of the present invention.

In this embodiment, the spreading base plate 40a is formed so as to protrude higher than the protrusion 42 at the upper end of the block body 41 so as to be parallel to the structure of the spreading base plate 40 of the previous embodiment and the protrusion 42 of the block body 41 And further a clump 44 is formed. The hanging chuck 44 is a means for mounting the connecting slab 90 to be described later.

As will be understood from FIGS. 4A to 4F, only the present embodiment differs from the previous embodiment (S500) only in the other steps (S500).

4E, in the step S500 of the present embodiment, the reinforcing soil 20 is filled in the back surface of the spreading base plate 40 and the geosynthetic fibers 30 are laminated on the upper surface of the reinforcing soil 20 The slabs are repeatedly backed up to the height of the upper surface of the hanging bases 44 of the spreading base plate 40 and the connecting slabs 90 are mounted on the upper surface of the hanging bases 44 of the foundation board 40 and the upper surface of the reinforcing base material. When the connecting slab 90 is installed, the supporting slab 100 may be provided on the road side end lower surface of the connecting slab 90. The supporting slab 100 is supported by the connecting slab 90 and the end portion of the road slab 110 so as to be spaced apart from each other so that a space in which the end portions of the connecting slab 90 and the road slab 110 are spaced apart forms a telescopic joint CCJ do.

6 is a perspective view showing various embodiments of the end portion expansion girder according to the present invention.

Although the end portion expansion girder 50 is composed of a wide PC beam having a wide width over the entire length, the present invention is not limited to this. As shown in FIG. 6A, the longitudinal center portion of the girder is an H- And the end portion may be constituted by the end block 51 of the PC extending in the widthwise direction or the longitudinal center portion of the girder as shown in Figure 6B may have a small width, May be integrally made of PC. In addition to the H-shaped or I-shaped steel shown in FIG. 6A, a central portion may be formed by a beam member having a cross section such as a box shape or a U-shape, though not shown.

In the embodiment in which the central portion of the end portion expanding girder 50 shown in FIGS. 6A and 6B is formed to have a smaller width than the end portion, in the finishing step (S600) shown in FIGS. 1F and 4F, The slabs are installed between the center portions, and the package 60 is finished and finished on the upper surface of the end portion expansion girder 50, the upper surface of the slab and the upper surface of the road side, and the installation of the slab is not limited to any particular method, .

FIG. 7A is a partially enlarged view of FIG. 1F, and FIG. 7B is a partially enlarged view of FIG. 4F.

As described above, the connecting reinforcing bars 70 and the buffer pads 80 may be further provided at the upper end of the reinforced soil foundation wall.

7, a connecting reinforcing bar 70 is inserted into the hollow portion 111 of the front block 11 in three or more layers (four layers in FIG. 7) constituting the upper end of the front wall 10 It is possible to assemble and install the concrete inside the hollow part 111 to secure the stability and prevent the deformation. Especially, in case of rainy weather, the inflow water is blocked so that settlement by inflow water does not occur.

The spreading base plates 40 and 40a are spaced apart from the upper surface of the front wall 10 so as to be spaced apart from the back surface of the front wall 10. At this time, The lower side of the bridge side of the bridge. This is to accommodate the vertical deformation that occurs at the initial stage of the construction, such as a high performance rubber or composite fiber concrete, which is made of durable, corrosion-resistant and elastic material.

According to the method of constructing a non-jointed bridge using the laminated type geosynthetic fiber reinforced soil foundation wall and the spreading foundation plate constructed as described above, since the construction step is omitted, a large-scale civil engineering work for the alternate construction is unnecessary, It is economical and rapid construction is possible.

Also, owing to the omission of the shift, it is possible to reduce the maintenance cost by omitting the accessory shoe and the expansion joint.

In addition, by introducing the reinforced soil method instead of the compaction soil, the horizontal direction deformation of the reinforced soil due to the vertical load and the residual settlement by inducing the tensile force due to the frictional force between the geosynthetic fiber and the reinforcing soil by embedding the geosynthetic fiber in the horizontal direction inside the reinforced soil It is possible to effectively prevent and secure a stable supporting force.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: Front wall 11: Front block
111: hollow part 20: reinforcing material
30: Geotextile 31: Additional geotextile
40: base plate 41: block body
42: protrusion 43: hinge bar
44: Chuck 50: End girder
51: end block 52: projecting groove
53: hollow part 60: packing
70: connecting reinforcing bar 80: cushion pad
90: connecting slab 100: supporting slab
110: Road slab

Claims (8)

(a) excavating the ground corresponding to both ends of the bridge and constructing the foundation (B);
(b) horizontally arranging the front block 11 on the upper surface of the foundation block B in a direction orthogonal to the throat axis and filling the reinforcing soil body 20 with the height of the front block 11 on the rear surface of the front block 11, Laminating the geosynthetic fibers (30) to form a reinforcing soil layer;
(c) Repeating the step (b) of forming the reinforcing earth layer from the lower part to the upper part. In the uppermost three or more reinforcing earth layers, one or more additional geosynthetic fibers 31 are further installed between the geosynthetic fibers 30, 11. The method of claim 1, further comprising the steps of: (a) providing a reinforcing layer (20) reinforced with the geosynthetic fibers (30);
(d) placing the spreading base plate (40) on the upper side of the wall of the reinforcing member (20) provided with the additional geosynthetic fibers (31) and spaced apart from the rear surface of the front wall (10); And
(e) The end portion of the end portion expansion girder 50 is installed on the upper portion of the spreading base plate 40. In the hollow portion 53 formed at the end of the end portion expansion girder 50, the hinge bar The protruding portion 42 formed on the spreading base plate 40 is inserted into the protruding engaging groove 52 formed on the bottom surface of the end portion of the end enlarging girder 50. The protruding portion 42 is inserted into the hollow portion 43 into which the hinge bar 43 is inserted, And a step of filling the end extension girder (50) with the spreading base plate (40) integrally by filling the filler (53) with the filler material. Construction method. delete The method according to claim 1,
After step (e)
(f) The process of laminating the reinforcing soil 20 on the back surface of the spreading base plate 40 and the end expansion girder 50 and laminating the geoscientific fibers 30 on the upper surface of the reinforcing soil 20 is referred to as " (50) to complete the roadside backfill; And
(g) completing and finishing a package (60) on the upper surface of the end portion expanding girder (50) and the upper side of the roadside backfill, and finishing the unfired bridge construction using the layered geopolymer- Way. The method according to claim 1,
After step (e)
(f) The process of laminating the reinforcing soil 20 on the back surface of the spreading base plate 40a and laminating the geoscientific fibers 30 on the upper surface of the reinforcing soil 20 is performed by the step 44) repeatedly layering the stratified layer up to the upper surface height and mounting the connecting slab (90) on the upper surface of the slab (44) of the foundation plate (40a) and the upper surface of the reinforcing slab; And
(g) completing and finishing the package (60) on the upper surface of the end portion expanding girder (50) and the upper surface of the connecting slab (90), and finishing the unflexed bridge using the spreading base plate Construction method. The method according to claim 1,
Characterized in that the end extension girder (50) is joined to the upper part of the spreading base plate (40, 40a) by two or more end portions in the longitudinal direction of the spreading base plate (40, 40a) Construction method of no - joint bridges using foundation plate. The method according to claim 1,
Characterized in that a buffer pad (80) is installed on the upper rear surface of the front wall (10) so as to support the lower side of the bridge side of the spreading base plate (40, 40a) Construction method. The method according to claim 1,
The front block 11 is made of precast concrete PC so as to have a hollow portion 111 at the center thereof and stacked so that the upper and lower blocks are shifted from each other. The front block 11 has three or more front blocks 11 constituting the upper end of the front wall 10, Wherein the connection reinforcing bars (70) are inserted into the hollow part (111) of the hollow part (111) and concrete is poured into the hollow part (111). The method according to claim 1,
Wherein the end portion extending girder (50) is constituted by an H-shaped steel or an I-shaped steel in the longitudinal center portion and an end block (51) of the PC extended in the width direction, and a spreading base plate Construction method of unused joint bridges.
KR1020150106862A 2015-07-28 2015-07-28 Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block KR101761477B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150106862A KR101761477B1 (en) 2015-07-28 2015-07-28 Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150106862A KR101761477B1 (en) 2015-07-28 2015-07-28 Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block

Publications (2)

Publication Number Publication Date
KR20170014097A KR20170014097A (en) 2017-02-08
KR101761477B1 true KR101761477B1 (en) 2017-07-27

Family

ID=58155281

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150106862A KR101761477B1 (en) 2015-07-28 2015-07-28 Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block

Country Status (1)

Country Link
KR (1) KR101761477B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230058252A (en) * 2021-10-22 2023-05-03 한국철도기술연구원 Bridge abutment embankment transition for horizontal earth pressure reduction and and constructing method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098082A (en) * 2018-10-19 2018-12-28 佛山科学技术学院 A kind of novel bridge building expanded joint structure
CN113605235A (en) * 2020-07-08 2021-11-05 苏交科集团股份有限公司 Composite abutment construction method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101263370B1 (en) * 2010-11-18 2013-05-21 한국건설기술연구원 Precast end-block with girder connection member and bridge construction method using ths same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101341147B1 (en) 2013-06-25 2013-12-11 원문철 Structure of integrated pavement on road-bridge and the method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101263370B1 (en) * 2010-11-18 2013-05-21 한국건설기술연구원 Precast end-block with girder connection member and bridge construction method using ths same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230058252A (en) * 2021-10-22 2023-05-03 한국철도기술연구원 Bridge abutment embankment transition for horizontal earth pressure reduction and and constructing method thereof
KR102562383B1 (en) 2021-10-22 2023-08-02 한국철도기술연구원 Bridge abutment embankment transition for horizontal earth pressure reduction and and constructing method thereof

Also Published As

Publication number Publication date
KR20170014097A (en) 2017-02-08

Similar Documents

Publication Publication Date Title
CN101787708A (en) Integrally-assembled cantilever-type retaining wall and construction method thereof
KR101216511B1 (en) Method for constructing a abutment of integral abutment bridge
KR20090130637A (en) Fill-up structure for back-area of rigid structure and construction method of the same
KR101761477B1 (en) Construction method of jointless bridge with reinforced earth retaining wall and spread bearing block
RU94983U1 (en) PILED ROAD STRUCTURE
KR101288601B1 (en) Underpass using precast concrete pile and bottom slab and method for constructing the same
KR101653606B1 (en) Method for constructing integral abutment bridge
US6745421B2 (en) Abutment with seismic restraints
KR101649874B1 (en) Retaning wall using formative block
KR20150043913A (en) Biased soil pressure reinforcement rigid-frame bridge and construction method of the same
KR101068299B1 (en) the structure for transit of vehicles in pulling up bridge and the construction method therewith
JP2009209591A (en) Subsidence prevention measures for floor system
CN110593080A (en) Inter-support trestle system combined with inner support system and construction method
KR20060106159A (en) The engineering-works structure using composite pile and steel sheet pile, and it's construction method
CN113481771B (en) Permanent and temporary combined construction structure for municipal road and construction method thereof
US5189855A (en) Foundation raft for supporting a structure
CN115341596A (en) Implementation method for bilateral additional construction of slope-shaped independent foundation
JP2009046942A (en) Foundation block for retaining wall
CN216193941U (en) Novel abutment structure
JP2007291801A (en) Elevated road structure and its construction method
JP3806681B2 (en) Road construction method and construction material
JP2009041226A (en) Precast block, construction method for approach section using it, and manufacturing method therefor
CN217781621U (en) Road panel splicing assembly and temporary road system
CN109403170B (en) Steep slope road and construction method thereof
JP4030817B2 (en) Precast solid intersection

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant