KR20220045844A - Pipe support for earth pressure separation type geosynthetic reinforced soil abutment - Google Patents

Abstract

Disclosed is a pipe support for an earth pressure separation-type reinforced soil abutment, capable of being used as a support to deliver a support force to a wall of a reinforced soil body, and being used as an earth pressure sensing device to sense earth pressure exerted from a reinforced soil retaining wall in a transverse direction. To achieve the purpose, the pipe support includes: an outer pipe having a spiral part and a first support pin hole formed at one end, and having a measurement hole formed at the other end opposed to the one end; a first inner pipe having one end inserted into the other end of the outer pipe, having a graduated ruler formed in a longitudinal direction to be checked through the measurement hole, and having a second support plate provided at the other end opposed to the one end; a second inner pipe having one end inserted into the one end of the outer pipe, having a plurality of second support pin holes formed to be connected with the first support pin hole in a longitudinal direction, and having a third support plate provided at the other end opposed to the one end; and a support pin inserted into one of the plurality of second support pin holes through the first support pin hole to restrict wobbles of the second inner pipe. In accordance with the present invention, since a means is provided to visually check transverse displacement exerted from a reinforced soil retaining wall after the completion of the construction of a reinforced soil abutment, an abnormal sign from the reinforced soil retaining wall can be identified, and, accordingly, the collapse of the reinforced soil retaining wall can be prevented.

Description

PIPE SUPPORT FOR EARTH PRESSURE SEPARATION TYPE GEOSYNTHETIC REINFORCED SOIL ABUTMENT}

The present invention relates to a pipe support that can be used for the construction of an earth pressure separation type reinforced soil abutment, and more particularly, it can be used as a support that transmits the bearing force of a wall to a reinforcing soil body during the construction of an earth pressure separation type reinforced soil abutment, and the construction of an earth pressure separation type reinforced soil abutment is To a pipe support for alternating earth pressure separation type reinforcement soil that can be used as an earth pressure sensing device that detects earth pressure acting laterally from the reinforced earth retaining wall after completion.

Reinforced soil abutment is a bridge abutment using the reinforced soil construction method, and has been applied since the 2000s, mainly in the United States and Japan, and there is no problem due to lateral displacement, etc.

In addition, construction cost and construction period are reduced compared to general shifts, and in particular, seismic performance is greatly improved. It is known that the integral bridge is a Ramen type bridge that does not have a bearing device or an expansion joint, and it is known that maintenance problems rarely occur.

In addition, the Japan Railway Research Institute developed a reinforced earth integrated abutment by combining the existing reinforced earth abutment with an integrated bridge in 2012. has been reported In addition, this method combines the advantages of all methods, such as preventing subsidence of the backing ground, increasing earth pressure, and deformation of walls in an integrated bridge structure, so that construction costs, maintenance costs, and seismic stability are lower than those of existing structures, reinforcing soil replacement, and integrated bridges. evaluated as excellent.

In addition, in the case of the United States and Europe, studies on pure/composite/earth pressure separation reinforced soil abutments have been conducted and applied in the field depending on the subject that receives the load of the superstructure.

Specifically, as shown in FIG. 1, the pure-type reinforced earth retaining wall abutment includes a reinforced earth retaining wall 10 built at the end of the embankment of the road, and a semi-integral abutment 21, 22, 23 placed on the reinforced earth retaining wall 10. And, the bridge superstructure 30 connected to the semi-integral abutments (21, 22, 23), the connecting slab 40 integrally formed with the semi-integral abutments (21, 22, 23), and the semi-integral type It is positioned at the connecting portion of the abutments 21 , 22 , and 23 and the connecting slab 40 and includes a block laminate 50 supporting the lower surface of the connecting slab 40 .

In addition, the composite reinforced earth retaining wall abutment further includes a pile 60 penetrating the reinforced earth retaining wall 10 in the above-described reinforced earth retaining wall abutment, as shown in FIG. 2 .

In addition, as shown in FIG. 3 , the earth pressure separation-type reinforced earth abutment includes a reinforced earth retaining wall 10 built on the starting and ending side of the bridge, respectively, and the reinforced earth retaining wall 10 at a distance from the ground at the starting point and the end of the bridge. A plurality of exposed piles 70 respectively installed in the ground, a plurality of girder insertion grooves are provided on the upper side, and a plurality of pile insertion holes are provided on the lower surface, so that each end of the exposed piles is provided in the pile insertion holes, respectively A pile connection block 80 to be inserted, a plurality of girders 32 mounted on the pile connection block so that the ends are respectively inserted into the girder insertion grooves of the pile connection block 80, and an upper surface of the pile connection block and It includes an upper slab 34 provided on the upper surfaces of the girders, and a connection slab 40 connecting the side surfaces of the upper slab 34 and the upper surface of the reinforcing earth retaining wall 10 .

However, in the existing pure type, complex type, and earth pressure separation type reinforced soil abutments, when the backfill soil is compacted, the backfill soil is pushed forward and cannot be sufficiently compacted. There was a problem in that the shifting front frequently occurred.

Accordingly, there is a need to develop a mechanism or construction method capable of suppressing or detecting the lateral displacement acting on the reinforced soil retaining wall side.

Republic of Korea Patent Registration No. 10-1783387 (2017.09.29 Announcement) Republic of Korea Patent Registration No. 10-2001410 (published on July 18, 2019) Republic of Korea Registered Utility Model No. 20-0215928 (Announcement on March 15, 2001) Republic of Korea Registered Utility Model No. 20-0412991 (Announcement on Apr. 5, 2006)

Therefore, it is an object of the present invention to be used as a support between the Ramen structure and the reinforcing earth retaining wall during the construction of the reinforced earth abutment to suppress the lateral displacement acting on the reinforced earth retaining wall, and the lateral displacement after the construction of the reinforced earth abutment is completed The purpose of this is to provide a pipe support for replacement of earth pressure separation type reinforced earth that can be used as a detection device of the reinforced earth retaining wall to accurately inform the time of maintenance of the reinforced earth retaining wall.

In order to achieve the object of the present invention described above, in one embodiment of the present invention, a spiral portion and a first support pinhole are formed at one end, and an appearance in which a measurement hole is formed at the other end opposite to the one end, and one end A first inner tube which is interpolated into the other end of the exterior, a ruler that can be checked through the measurement hole is formed along the longitudinal direction, and a second support plate is provided at the other end opposite to the one end, and one end is interpolated into one end of the exterior. and a second inner tube having a plurality of second support pinholes communicating with the first support pinholes in the longitudinal direction and having a third support plate at the other end opposite to the one end, and a plurality of second support pinholes through the first support pinholes It is inserted into any one of the second support pinholes of the two support pinholes to provide an earth pressure separation type reinforcement soil replacement pipe support including a support pin for limiting the movement of the second inner tube.

According to the present invention, since there is provided a means for visually confirming the lateral displacement acting from the reinforced earth retaining wall after the construction of the reinforced earth alternating current is completed, abnormal signs of the reinforced earth retaining wall can be identified in advance, thereby preventing the collapse of the reinforced earth retaining wall in advance. can In this way, the pipe support according to the present invention can help a manager to conveniently perform the measurement management of the earth pressure separation type reinforcing soil shift.

In addition, since the pipe support according to the present invention can be used as a support for supporting the front block using the wall of the Ramen structure even during the construction of the reinforced soil retaining wall, it can be substituted for the support used during the construction process of the reinforcement soil shift.

In addition, the present invention can suppress the displacement (horizontal deflection) acting in the transverse direction in the reinforcing soil retaining wall.

1 is a configuration diagram showing a conventional pure-type reinforcing soil alternation.
Figure 2 is a configuration diagram showing a conventional composite-type reinforcing soil abutment.
3 is a configuration diagram showing a conventional earth pressure separation type reinforcing soil alternation.
4 is a perspective view for explaining an embodiment of a pipe support according to the present invention.
5 is a configuration diagram showing an earth pressure separation type reinforcement soil abutment constructed using a pipe support according to the present invention.
6 is a side view illustrating a pipe support installed between a wall and a secondary front block during the process of constructing a reinforcement soil abutment.
7 is a side view showing the pipe support installed between the wall and the secondary front block after the reinforcing soil abutment is built.

Hereinafter, with reference to the accompanying drawings, a pipe support (hereinafter, abbreviated as 'pipe support') for earth pressure separation type reinforcing soil replacement according to preferred embodiments of the present invention will be described in detail.

4 is a perspective view for explaining an embodiment of a pipe support according to the present invention, and FIG. 5 is a configuration diagram showing an earth pressure separation type reinforcing soil abutment constructed using a pipe support according to the present invention.

The pipe support 100 according to the present invention is installed between the Ramen structure 200 and the reinforced earth retaining wall 300, and during the construction process of the earth pressure separation type reinforced earth alternating current, the reinforced earth retaining wall 300 is attached to the wall of the Ramen structure 200 ( 220), and after the construction of the earth pressure separation type reinforced earth shift is completed, a displacement sensing device that detects the displacement acting in the transverse direction between the wall 220 of the ramen structure 200 and the reinforced earth retaining wall 300 is used as

To this end, the pipe support 100 is installed at one end of the exterior 110 and the exterior 110 providing a slide passage therein, as shown in FIG. 4 , and is interpolated into the interior of the exterior 110 according to the lateral displacement according to the lateral displacement. The first inner tube 120 to be used, and the second inner tube 130 installed at the other end of the outer tube 110 and having an interpolation length adjusted for the outer tube 110 according to the interval between the wall of the ramen structure and the reinforcing earth retaining wall, and The second inner tube 130 includes a support pin 140 which is vertically inserted into the outer tube 110 and the second inner tube 130 so that the interpolation length of the inner tube 130 is limited.

Hereinafter, each component will be described in more detail with reference to the drawings.

6 is a side view showing the pipe support installed between the wall and the secondary front block during the process of constructing the reinforcement soil abutment, and FIG. 7 is a pipe support installed between the wall and the secondary front block after the reinforcement soil abutment is built. It is a side view.

4 and 6 , the pipe support 100 according to the present invention includes an exterior 110 .

In the exterior 110 according to the present invention, a spiral portion 112 and a first support pinhole 114 are formed at one end, and a measurement hole 116 is formed at the other end opposite to the one end.

If necessary, the exterior 110 is a reference line 117 of the scale so that the lateral displacement acting from the ramen structure 200 and the reinforcing earth retaining wall 300 can be checked with the scale of the ruler through the measurement hole 116. It may be formed in the upper or lower part of the center of the measurement hole. In this case, the reference line 117 may be formed in a straight line or an inverted triangle.

The first support pin hole 114 is formed as a long hole so that the interpolated support pin 140 can be moved along the longitudinal direction of the exterior 110 , and may be formed to overlap the spiral portion 112 .

The measurement hole 116 may be formed in an elliptical, rectangular, circular shape so that an administrator can check the ruler 122 formed on the surface of the first inner tube 120 to be interpolated into the interior of the outer tube 110 .

In other words, the spiral portion 112 and the first support pinhole 114 may be formed at the front end of the exterior 110 , and the measurement hole 116 may be formed at the rear end of the exterior 110 .

If necessary, the exterior 110 may be provided with a first support plate 118 on the edge of the other end. This first support plate 118 is coupled to the fastening means together with the second support plate 124 of the first inner tube 120 to be described later so that the pipe support 100 can be used as a support during the construction process of the earth pressure separation type reinforcement soil shift. And when the construction of the earth pressure separation type reinforcing earth alternating current is completed, the first supporting plate 118 is separated from the second supporting plate to be used as an earth pressure sensing device that detects the earth pressure acting in the transverse direction from the reinforced earth retaining wall 300 instead of the role of a support.

The first support plate 118 may have a plurality of first fastening holes 119 formed along the rim so that fastening means such as anchor bolts can be coupled thereto.

4 and 6 , the pipe support 100 according to the present invention includes a first inner tube 120 .

One end of the first inner tube 120 according to the present invention is interpolated into the other end of the outer tube 110, and a ruler 122 that can be checked through the measurement hole 116 along the longitudinal direction is formed, and the one end A second support plate 124 is provided at the other end opposite to the .

In addition, one end of the first inner tube 120 is formed to have an outer diameter corresponding to the inner diameter of the convolution tube so that it can move in a state interpolated into the interior of the outer tube 110 , and the other end of the first inner tube 120 is a rectangle, a circle, etc. A second support plate 124 having a structure of And a ruler in mm is formed on the surface of the first inner tube 120 .

And the second support plate 124 may be formed with a plurality of second fastening holes 125 along the edge so that fastening means such as anchor bolts can be coupled thereto. In this case, the plurality of second fastening holes 125 are formed at positions facing the first fastening holes 119 .

In addition, the front end of the first inner tube 120 is inserted into the rear end of the outer tube 110, the rear end of the first inner tube 120 is installed in the wall 220 or the reinforced earth retaining wall (300). At this time, it is preferable that the space in which the fastening means is installed in the reinforced earth retaining wall 300 is the secondary front block 330 facing the wall 220 .

On the other hand, when the pipe support 100 is installed between the wall 220 and the secondary front block 330 during the process of constructing the reinforcing soil abutment, the fastening means is connected to the first fastening hole 119 and the second fastening hole 119 as shown in FIG. 2 It is installed in the wall 220 or the reinforcing earth retaining wall 300 in a state inserted into the fastening hole 125 . At this time, the first support plate 118 and the second support plate 124 are fixed to the wall 220 or the reinforcing earth retaining wall 300 in a state of being in close contact with each other.

When the pipe support 100 is installed between the wall 220 and the secondary front block 330 after constructing the reinforcing soil abutment, check the ruler through the measurement hole 116 of the pipe support 100 and check the wall Different from the process of constructing a reinforcing earth abutment so that the lateral displacement acting from the 220 and the secondary front block 330 to the pipe support 100 can be confirmed, the exterior 110, the first inner tube 120, and the second inner tube The connection relationship between the 130 and the support pin 140 is changed.

Specifically, as shown in FIG. 7 , the fastening means is installed in the wall 220 or the secondary front block 330 in a state inserted only in the second fastening hole 125 . At this time, the first support plate 118 is separated from the second support plate 124 , and the second support plate 124 is fixed to the wall 220 or the reinforced earth retaining wall 300 .

Accordingly, the outer tube 110 of the pipe support 100 is inserted into the second inner tube 130 at its tip. It is fixed to the reinforced earth retaining wall 300, its rear end is separated from the wall 220, and when a lateral displacement is transmitted from the reinforced earth retaining wall 300 or the wall 220, the exterior 110 is formed with the reinforced earth retaining wall 300 or the wall ( 220) is moved according to the movement.

As a result, when the shift manager compares the scale observed through the measurement hole 116 in the initial state with the scale periodically observed through the measurement hole 116, the wall 220 and the reinforced earth retaining wall 300 act as It is possible to determine the lateral displacement.

If necessary, the exterior 110 has a longitudinal direction on the inner surface so that the ruler 122 of the first inner tube 120 interpolated into the exterior 110 can face the measurement hole 116 of the exterior 110 . A guide protrusion (not shown) protruding along the protrusion is provided, and the first inner tube 120 is provided with a guide groove (not shown) recessed along the longitudinal direction on the outer surface so that the guide protrusion can be fitted to the outer surface. can

4 and 6 , the pipe support 100 according to the present invention includes a second inner tube 130 .

The second inner tube 130 according to the present invention has one end inserted into one end of the outer tube 110, and a plurality of second support pinholes 132 communicating with the first support pinhole 114 along the longitudinal direction are formed. , a third support plate 134 is provided at the other end opposite to the one end.

In addition, one end of the second inner tube 130 is formed to have an outer diameter corresponding to the inner diameter of the convolution tube so that it can move in a state interpolated into the interior of the outer tube 110 , and the other end of the second inner tube 130 is a rectangle, a circle, etc. A third support plate 134 having a structure of And second support pinholes 132 are formed on the surface of the second inner tube 130 at regular intervals.

And the third support plate 134 may be provided with a plurality of third fastening holes 135 along the edge so that fastening means such as anchor bolts can be coupled thereto. At this time, when the fastening means is installed on the wall 220 or the secondary front block 330 in a state inserted into the third fastening hole 135, the third support plate 134 is the wall 220 or the secondary front block ( 330) is fixed.

In other words, the front end of the second inner tube 130 is inserted into the front end of the outer tube 110, the rear end of the second inner tube 130 is installed on the wall 220 or the secondary front block (330).

In this way, during the construction process of the earth pressure separation type reinforced earth alternating current, the first supporting plate 118 and the second supporting plate 124 are fixed to the ramen structure 200 or the reinforced earth retaining wall 300, and the remaining ramen structure 200 or the reinforced earth retaining wall ( The third support plate 134 is fixed to 300). At this time, when the first support plate 118 and the second support plate 124 are fixed to the ramen structure 200 , the third support plate 134 is fixed to the reinforced earth retaining wall 300 , and the first support plate 118 and the second support plate When the 124 is fixed to the reinforced earth retaining wall 300 , the third support plate 134 is fixed to the ramen structure 200 .

And after completion of the construction of the earth pressure separation type reinforcing earth shift, check the ruler 122 through the measuring hole 116 to confirm the lateral displacement acting from the ramen structure and the reinforcing earth retaining wall. ) or desorbed from the reinforced soil retaining wall 300 .

4 and 6 , the pipe support 100 according to the present invention includes a support pin 140 .

The support pin 140 is inserted into the second support pin hole 132 of any one of the plurality of second support pin holes 132 through the first support pin hole 114 to limit the movement of the second inner tube 130 . It includes a support pin (140).

The support pin 140 is inserted into any one of the second support pinholes 132 among the plurality of second support pinholes 132 to adjust the distance between the front end of the exterior 110 and the third support plate 134 . And the support pin 140 is inserted into the first support pin hole 114 to adjust the distance between the tip of the exterior 110 and the third support plate 134 in the length range of the first support pin hole 114 .

During the process of constructing the reinforcing soil abutment, the support pin 140 can maintain the state in which the first support plate 118 of the exterior 110 is in close contact with the second support plate 124 of the second inner tube 130 as shown in FIG. It is inserted into the first support pinhole 114 and the second support pinhole 132 located there.

After constructing the reinforcing earth abutment, the support pin 140 is formed of the ruler through the measurement hole 116 while maintaining the state in which the first support plate 118 and the second support plate 124 of the exterior 110 are separated as shown in FIG. 7 . It is inserted into the first support pinhole 114 and the second support pinhole 132 that help to check the preset scale. In this case, a scale having a multiple of 10 mm, such as 0 mm, 10 mm, 20 mm, 30 mm, etc., may be used as a preset scale.

On the other hand, the support pin 140 may be composed of a pin portion interpolated into the second support pin hole 132 through the first support pin hole 114 , and a head portion provided at an upper end of the pin portion. At this time, the head portion is formed to have a cross-sectional area that is larger than that of the pin portion so that the support pins 140 do not pass through all of the first support pin holes 114 .

4 and 6 , the pipe support 100 according to the present invention may further include a pair of female screws 150 .

The pair of female screws 150 are assembled to the spiral portion 112 of the exterior 110 to limit the movement of the support pin 140 , and the support pin 140 interpolated into the first and second support pin holes 114 and 132 . ) based on the first female screw 150 positioned in the direction of the second support plate 124 and in close contact with the support pin 140 and the second female screw positioned in the direction of the third support plate 134 and in close contact with the support pin 140 . (150).

The first and second female screws 150 serve to limit the movement of the support pin 140 so that the gap between the third support plate 134 and the tip of the exterior 110 maintains the initially set gap.

As such, when the second support pinhole 132 into which the support pin 140 is inserted is primarily selected by the administrator from among the plurality of second support pinholes 132, the length of the pipe support 100 increases with the ramen structure ( 200) is adjusted to a length similar to the separation distance between the wall 220 and the reinforcing earth retaining wall 300. And secondarily, when the position of the first support pin hole 114 into which the support pin 140 is inserted through the pair of female screws 150 is selected, the length of the pipe support 100 is the wall of the ramen structure 200 ( 220) and the reinforcing earth retaining wall 300 is adjusted to the same length as the separation distance.

On the other hand, the earth pressure separation type reinforcing earth abutment in which the pipe support 100 according to the present invention is used includes a ramen structure 200, a reinforcing earth retaining wall 300, and a support (not shown), and optionally a connection slab 400 may include more.

The ramen structure 200 includes a foundation concrete 210 poured on the bottom surface of the base plate, a wall 220 poured on the top surface of the foundation concrete 210, and a top plate poured on the top surface of the wall 220 ( 240), and optionally may further include discarded concrete 230.

Here, the top plate 240 may be provided by pouring and curing concrete on site, or by installing beams or girders pre-fabricated in the field and in the factory, and pouring and curing the floor plate concrete on site.

The reinforcing earth retaining wall 300 is a primary front block 310 installed on the bottom surface of the original ground so as to be spaced apart from the foundation concrete 210, and is installed inside the primary front block 310 and is provided with reinforcing soil 322 and reinforcing material. The primary reinforcement soil body 320 including 324, the secondary front block 330 installed on the upper surface of the primary front block 310, and the secondary front block 330 are installed inside the It includes a secondary reinforcing soil body 340 including reinforcing soil 342 and a reinforcing material 344 .

Here, the first reinforcing soil body 320 and the secondary reinforcing soil body 340 include the first reinforcing soil filled and compacted inside the front block, the first reinforcing material such as a geogrid installed on the upper surface of the first reinforcing soil, and the first It is configured to include secondary reinforcing soil filled and compacted on top of the reinforcing material, and secondary reinforcing materials such as a geogrid installed on the upper surface of the secondary reinforcing soil. In addition, the primary reinforcing earth body 320 and the secondary reinforcing earth body 340 may be repeatedly provided with a plurality of reinforcing earth and reinforcing materials on the upper surface of the secondary reinforcing material.

If necessary, the first reinforcing soil body 320 may be provided with rubble 326 between the first front block 310 and the reinforcing soil 322, and the secondary reinforcing soil body 340 is the second front block ( Rubble 346 may be provided between the 330 and the reinforcing soil 342 .

The connection slab 400 is installed on the secondary front block 330 and the upper part of the wall 220, and provides a function of connecting the upper plate 240 and the secondary reinforcing earth body 340.

If necessary, a fill section for flattening may be formed at the upper end of the secondary reinforcing soil body 340 , and the connection slab 400 may be installed in the fill section and the upper part of the wall 220 .

The support is to be installed between the foundation concrete 210 and the first front block 310 to support the first front block 310 during the process of pouring the first reinforcing soil body 320, a support tree or a pipe support etc. may be used. These supports are separated between the foundation concrete 210 and the primary front block 310 before backfilling of the original ground proceeds.

Although described above with reference to the preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

100: pipe support 110: appearance
112: spiral part 114: first support pinhole
116: measurement hole 118: first support plate
120: first inner tube 122: ruler
124: second support plate 130: second inner tube
132: second support pinhole 134: third support plate
140: support pin 150: female thread
200: ramen structure 210: foundation concrete
220: wall 230: abandoned concrete
240: top plate 300: reinforced soil retaining wall
310: 1st front block 320: 1st reinforcing soil body
322: reinforcing soil 324: reinforcing material
326: rubble 330: 2nd front block
340: secondary reinforced soil 400: connection slab

Claims (7)

an appearance in which a spiral part and a first support pinhole are formed at one end, and a measurement hole is formed at the other end opposite to the one end;
a first inner tube having one end interpolated into the other end of the exterior, a ruler that can be checked through the measurement hole along the longitudinal direction, and a second support plate provided at the other end opposite to the one end;
a second inner tube having one end interpolated into one end of the exterior, a plurality of second support pinholes communicating with the first support pinholes formed along the longitudinal direction, and having a third support plate at the other end opposite to the one end; and
Earth pressure separation type reinforcing soil replacement pipe support including a support pin inserted into any one of the second support pinholes of the plurality of second support pinholes through the first support pinhole to limit the movement of the second inner tube. According to claim 1,
Earth pressure separation type reinforcement soil replacement pipe support, characterized in that it further comprises a pair of female screws assembled to the spiral portion of the exterior to limit the movement of the support pin. According to claim 1, wherein the appearance is
So that the pipe support can be used as a support during the construction process of the earth pressure separation type reinforced soil replacement, a first supporting plate coupled to the fastening means together with the second supporting plate is provided on the rim of the other end. 4. The method of claim 3,
Earth pressure, characterized in that the first support plate has a plurality of first fastening holes formed along its rim, and the second support plate has a plurality of second fastening holes facing the first fastening hole along its rim. Pipe support for detachable reinforcing earth abutment. 5. The method of claim 4,
During the construction process of the earth pressure separation type reinforced earth shift, the first and second supporting plates are fixed to the Ramen structure or the reinforced earth retaining wall, and the third supporting plate is fixed to the remaining Ramen structures or the reinforced earth retaining wall,
After completion of the construction of the earth pressure separation type reinforced earth alternating current, the first supporting plate is detached from the Ramen structure or the reinforced earth retaining wall so that the lateral displacement acting from the Ramen structure and the reinforced earth retaining wall can be confirmed by checking the ruler through the measurement hole. Earth pressure separation type reinforced soil replacement pipe support. According to claim 1,
The outer surface is provided with a guide projection protruding along the longitudinal direction on the inner surface so that the ruler of the first inner tube interpolated into the outer tube faces the measuring hole of the outer surface, and the first inner tube has the guide projection on the outer surface Earth pressure separation type reinforced soil replacement pipe support, characterized in that a guide groove recessed along the longitudinal direction is provided on the outer surface to be fitted. According to claim 1, wherein the appearance is
Earth pressure separation type reinforcement soil replacement, characterized in that the reference line of the scale is formed above or below the center of the measurement hole so that the lateral displacement acting from the ramen structure and the reinforcing earth retaining wall can be checked with the scale of the ruler through the measurement hole pipe support.

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