KR100737108B1 - Interlinkage erosion shield device of revetment structure fundamental reinforcement unit materials - Google Patents

Abstract

A unit member for reinforcing the foundation of a revetment structure having a corrosion-resistant device for a linkage is provided to keep the binding strength of a unit member and a linkage and the strength of a unit member sufficiently and to prevent a linkage from getting rusty by seawater or river water. The unit member(100) for reinforcing the foundation of a revetment structure having a corrosion-resistant device for a linkage contains projections(1) and grooves(2) formed alternately on upper and lower sides, buoyancy removal holes(3) formed on the groove and linkages(4) of a deformed bar(4a) projected to four sides, wherein the linkage is formed by installing a stainless steel pipe(5) on a part exposed to the outside of concrete of the unit member and fastened or suspended with a shackle or a crane hook directly and folding the stainless steel pipe together with the deformed bar simultaneously. In addition, a washer-shaped moisture cutoff sealing(9) made of silicon or rubber is installed on the outer circumferential surface of the stainless steel pipe buried under the concrete to cut off the permeation of seawater or river water or to disperse the permeated water to the concrete around the moisture cutoff sealing.

Description

 Interlinkage erosion shield device of revetment structure fundamental reinforcement unit materials}

1 is a perspective view and a partially enlarged flat cross-sectional view of the unit members of the present invention.

2 is a plan view of a block mat connecting the unit members of the present invention.

Figure 3 is an exemplary view showing a state in which the unit member to which the present invention is applied by connecting to move in the form of a block mat.

Figure 4 is a state diagram applied to the scour prevention construction of the piers by connecting the unit member to which the present invention is applied in the form of a block mat.

Figure 5 is a state diagram applied to the construction of the revetment of the river by connecting the unit member to which the present invention is applied in the form of a block mat.

Figure 6 is a state diagram applied to the unit opening and sand stone coating construction of the breakwater by connecting the unit member to which the present invention is applied in the form of a block mat.

7 is a perspective view and a partially enlarged flat cross-sectional view of a conventional unit member.

8 is a perspective view showing another embodiment of the conventional unit member.

Explanation of symbols on the main parts of the drawings

1 protrusion 2 groove

3: buoyancy eraser 4: connection ring

4a: deformed steel bar 5: stainless steel pipe

6: Shackle 7: Assembly interval

8a: block mat moving frame 8b: wire rope

8c: Hook 9: Seal for blocking moisture inflow

100: unit member 200: block mat

The present invention relates to a unit member for reinforcement of a shoreline structure having a linkage corrosion prevention device, and more particularly, a foundation portion of a shoreline structure such as a bridge or a breakwater is crushed by flow velocity or waves, The concrete including the whole exposed to the outside of the unit member of the connecting ring prior to bending the connecting ring of the unit member to be used in the form of a block mat to prevent the fall and fall and reinforce the soft ground After installing the stainless steel pipe (tubular or corrugated pipe) to a part to be inserted into the inside of the bent and bent, on the outer circumferential surface of the end of the stainless steel pipe buried into the concrete, a seal for preventing moisture inflow made of silicon or rubber Cohesion and unit part between unit member and connecting ring through While maintaining the strength of the ash sufficiently, even if the linkage of the unit member installed in the form of being immersed in sea water or river water can prevent the rust and corrosion by sea water or river water, even after a long period of time. Invented to prevent water pollution in advance.

In general, foundation parts of structures such as bridges, breakwaters, and rafts are adversely affecting the structure due to the loss or scour of sandstones caused by waves or rapids.

Therefore, the foundation or revetment and breakwater surface of the structure is covered with sandstone or gabions filled with sandstone, and they are light in weight compared to the volume, and flow or loss cannot be prevented.

In addition, the rafts and breakwaters with strong waves and flow rates are thrown into the raft blocks each weighing about 2 tons or more, so that the breakwaters are protected from the rapids.

However, since most of the revetment blocks have a structure in which a plurality of protrusions are formed radially from the center point, the appearance is large and the weight is heavy, which makes the transportation and construction inconvenient, and a large space is formed between the blocks after construction. Because of this, the wave or flow rate can be prevented to some extent, but the problem remains that the foundation part of the breakwater cannot prevent partial loss of stone and crushing.

In other words, it was not possible to effectively protect the foundation and the surface of the structure with the sandstone, gabion, or raft block.

Therefore, in recent years, as a solution to solve such problems, "unit member and block mat for reinforcing the foundation of a revetment structure and its construction method" have been developed and presented in Korean Patent Publication No. 10-0253849.

The unit member and block mat for the foundation reinforcement of the revetment structure as described above and the unit member applied to the construction method are unit members 20A, 20B, 20C having various shapes as shown in FIG. In the planar shape, the upper and lower protrusions 21 and the upper and lower grooves 22 which are engaged with each other when overlapped in a planar shape are provided, and the upper and lower grooves 22 are provided with buoyancy scavenging holes 27 penetrating the upper and lower sides. The front and rear protrusions 23 and the front and rear recesses 24 are respectively provided on the front and rear surfaces of the unit members having the reinforcing bar links 30 for connecting the members, or symmetrical to each other as shown in FIG. It is comprised by the unit member 20D provided with the left and right protrusions 25 and the left and right recessed grooves 26, respectively.

The unit members 20A, 20B, 20C, and 20D having such a configuration are used in the same manner as the unit block to which the present invention is applied, connected in the form of a block mat, as shown in FIG. It is arranged to have a planar area as a whole, but the assembly interval 40 is formed between the sides in contact with each other to fill the shackle 50 in the reinforcing bar (30) adjacent or overlapping each other within the assembly interval 40 planar Connect with

The construction method of such a block mat is assembled by connecting the unit member to the weight or more designed in consideration of the flow rate, flow rate, etc. of the installation place, the overall appearance is formed by a block mat of arbitrary shape to fit the terrain to be moved by a crane or the like. By using the hooks at the bottom of the wire rope provided at intervals of unit members in the block mat moving frame, the unit mats of the block mats can be hooked to the factory and laid, and the block mats can be overlapped again.

In this case, the unit members constituting the upper and lower block mats may be constructed such that the upper and lower protrusions and the upper and lower grooves are engaged with each other when stacked, and the upper block mat covers the ends of the lower block mat.

In this way, by connecting the unit members capable of distributing the load in a plan as much as the necessary load in the design, and constructing a block mat in which the load is distributed in the plane, the block mat is placed around the foundation part of the structure, the bank, breakwater, soft ground, etc. By laying on the surface of the ground, it was possible to prevent ground subsidence, including prevention of crushing and the fall and loss of sandstone.

However, the connection ring of a conventional unit member having such a configuration and connected in the form of a block mat through the shackle and used for the basic reinforcement of the revetment structure simply has good adhesion strength (high adhesion stress) as described above, and It can reduce the fixing length and the joint length by increasing the bond strength of the rod.The thinner the reinforcing bar is, the better the bonding strength is, and the amount of rebar is reduced when the reinforcing bar is connected compared to the round bar. In addition to being formed as a deformed reinforcing bar having the advantage of finely dispersing the cracks compared to the reinforcing bar, the ring portion of the reinforcing bar is exposed to the outside as it is.

By the way, the unit members having the above configuration are interconnected on a plane to form a block mat, and then the place of installing the unit members is mainly a bridge or a base part of a raft structure such as a breakwater, which is crushed by the flow velocity or waves, or the surface of the breakwater surface. As it is applied to the place where the sandstone is prevented from being lost and reinforce the soft ground, the reinforcing bar which is always exposed to the outside is always in contact with sea water or river water as above. If a long time passes after installation, the reinforcing bar is continuously corroded by sea water or river water, so that the unit members are separated from each other due to poor connection or cutting of the connection part, thereby preventing the shape of the mat block. In addition, seawater and rivers are polluted by rebar rust. It may lead to environmental pollution such as water pollution.

The present invention has been devised to solve such a conventional problem, it is to prevent the base portion of the revetment structure, such as bridges, breakwaters, etc., to be crushed by the flow rate or waves, or to be lost due to the fall of the dead stone on the surface of the breakwaters When bending the connecting ring of the unit member to be used by connecting in the form of a block mat to reinforce the ground, a portion of the connecting ring that is embedded into the interior of the concrete, including the entire connecting portion exposed to the outside of the unit member After installation, the stainless steel pipe having a tubular or corrugated pipe shape is bent and bent, and the moisture inlet blocking seal made of silicon or rubber is installed on the outer circumferential surface of the end of the stainless steel pipe embedded in the concrete to connect with the unit member. The bond strength between the rings and the strength of the unit member It is possible to prevent rust and corrosion caused by sea water or river water even if the connection ring of the unit member installed in the form of being immersed in sea water or river water while maintaining it properly is bad. The shelter provided with a linkage corrosion prevention device that can prevent the unit members from being separated from each other by cutting the shape of the mat block, and also prevent the water pollution caused by rust generated from the reinforcing bar in advance. The object is to provide a unit member for structural foundation reinforcement.

The present invention for achieving the above object is provided with a buoyancy elimination hole penetrated up and down on the upper and lower projections and grooves on the upper and lower grooves, and on each side side in the construction of a unit member for the reinforcement of the revetment structure provided with a connection ring ,

When the connecting ring is embedded in the concrete of the unit member, the stainless steel pipe is bent together with the deformed reinforcing bar by installing a stainless steel pipe to cover the reinforcing steel to a part embedded into the concrete, including the entire connecting portion exposed to the outside of the unit member. It is characterized in that.

At this time, the stainless steel pipe is characterized in that it comprises a common tube and corrugated pipe.

In addition, a part of the length of the stainless steel pipe embedded in the concrete of the unit member is characterized in that at least 8 cm or more within 10 cm from the concrete surface.

In addition, on the outer peripheral surface of the end portion of the stainless steel pipe embedded in the concrete, it is characterized in that the additional seal is made of silicon or rubber material.

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

1 is a perspective view and a partially enlarged flat cross-sectional view of a unit member of the present invention, Figure 2 is a plan view of a block mat connecting the unit member of the present invention, Figure 3 is a block mat form of the unit member to which the present invention is applied Figure 4 shows an exemplary view showing a state to move to, Figure 4 shows a state diagram applied to the scour prevention construction of the piers by connecting the unit member to which the present invention is applied in the form of a block mat, Figure 5 is applied to the present invention Figure 6 shows a state diagram applied to the unit for connecting the unit member in the form of a block mat in the river revetment construction, Figure 6 shows a state diagram applied to the muscle opening and sandstone coating construction of the breakwater by connecting the unit member to which the present invention is applied in the form of a block mat will be.

According to the present invention, the projections 1 and the grooves 2 are alternately provided on the upper and lower surfaces, and the buoyancy scavenging holes 3 through which the upper and lower surfaces pass through the grooves 2 are provided, and the connecting ring 4 is provided on all sides. In constructing the unit member 100 for the foundation reinforcement of the revetment structure provided in a protruding form,

 When embedding the connecting ring (4) in the concrete of the unit member 100 to surround the deformed reinforcement (4a) to a portion that is embedded into the concrete, including the entire connecting portion exposed to the outside of the unit member 100 It is characterized in that the stainless steel pipe (5) is installed and bent together with the deformed reinforcing bar (4a).

At this time, the stainless steel pipe (5) is characterized in that it comprises a general tube and corrugated pipe.

In addition, the length (l) of the stainless steel pipe 5 embedded in the concrete of the unit member 100 is characterized in that at least 8 cm or more within 10 cm from the concrete surface.

In addition, on the outer peripheral surface of the end portion of the stainless steel pipe (5) embedded in the concrete, it is characterized in that the additional moisture inlet seal 9 made of silicon or rubber.

Referring to the effects of the present invention having such a configuration as follows.

First, the present invention, as shown in Figure 1, the projections 1 and the grooves 2 are alternately provided on the upper and lower surfaces, buoyancy elimination hole (3) is provided on the grooves 2 through the upper and lower sides, four directions In the well-known unit member 100 provided in the form in which the connecting ring 4 formed by the reinforcing bar is protruded, the deformed bar having a predetermined diameter may be bent into a predetermined shape to form the connecting ring 4. When the stainless steel pipe 5 is installed on the part of the unit member 100 that is exposed to the outside of the concrete to which the shackle 6 or the hook of the crane is directly fastened or hung, the stainless steel pipe 5 is deformed and reinforced. Bending with (4a) is the main technical component.

That is, before forming the concrete unit member 100 using a mold having a predetermined shape, the unit member 100 is formed when the connecting ring 4 to be embedded in the concrete unit member 100 is formed by using the reinforcing bars. Stainless steel pipe exposed to the outside of the concrete to surround the deformed reinforcing bar (4a) to the part which is embedded into the interior of the concrete, including the entire connection portion where the shackle (6) or the hook of the crane is directly fastened or hung ( 5) after the installation of the stainless steel pipe (5) and the deformed reinforcing bars (4a) at the same time to form a connecting ring (4) itself.

In this case, the stainless steel pipe 5 may be a stainless steel pipe 5 having a smooth inner and outer tubular shape, or a stainless steel pipe 5 having a corrugated pipe shape.

However, in the former case, since the external shape is smooth, adhesion strength between the stainless steel pipe 5 partially embedded in the concrete and the concrete is not good, and there is a fear that the cracks may not be dispersed finely. As the outer circumferential surface is corrugated like a reinforcing bar like steel, it has good adhesive strength and has the advantage of finely dispersing cracks compared to the general tubular shape. Therefore, it is more preferable to use the corrugated stainless steel pipe 5 as the latter. Do.

On the other hand, the inner diameter of the stainless steel pipe (5) is preferably used to have a range of about 1-2 mm than the outer diameter of the deformed reinforcing bar, which is the connection portion exposed to the concrete outside of the unit member 100 as described above Including a stainless steel pipe (5) to surround the deformed reinforcing bars (4a) to a portion to be embedded into the concrete, including bending the stainless steel pipe (5) and the deformed reinforcing bars (4a) at the same time (4) This is because, when forming itself, when the inner diameter of the stainless steel pipe 5 is very large, the stainless steel pipe 5 is bent in a crushed shape without maintaining a circular shape such as a reinforcing bar.

In other words, the gap created between the outer circumferential surface of the deformed reinforcement and the inner circumferential surface of the stainless steel pipe 5 should be 1-2 mm while being easily inserted so that it is not too tight when the stainless steel pipe 5 is fitted to the outside of the deformed rebar. When the stainless steel pipe 5 and the deformed reinforcing bar 4a are bent at the same time, so that the shape of the stainless steel pipe 5 is not greatly distorted (that is, in a relatively circular state), the deformed rebar It is desirable to bend smoothly with.

Of course, it is also advantageous to use the corrugated stainless steel pipe 5 as compared to the stainless steel pipe 5 in the tubular shape.

Because, in the case of the stainless steel pipe (5) having a tubular shape, the outer side must be forcibly tensioned when bent together with the deformed rebar, so the arc shape is broken, broken or widened, the inner side is forcibly folded, and the corrugation is formed to form an overall cross section. In the case of the stainless steel pipe 5 having a corrugated pipe shape, the outer corrugated portion is unfolded and the inner corrugated portion is more folded while being bent together with the rebar. This is because the cross-sectional shape of the stainless steel pipe 5 itself remains almost circular as it is bent.

Of course, if the radius of curvature is increased when bending the connecting portion in the state in which the stainless steel pipe 5 is inserted to the outside of the reinforcing bar, the cross section of the bent portion is kept circular regardless of the shape of the stainless steel pipe 5. Therefore, if necessary, when bending the connecting portion it is also preferable to form a larger radius of curvature.

On the other hand, the stainless steel pipe (5) is relatively expensive compared to the deformed reinforcing bar, and compared to the deformed reinforcing bar having a bar shape, the bending shape of the stainless steel pipe (5) is weak, so that the entire connecting ring (4) is stainless Rather than forming into a steel pipe 5, as described above, the stainless steel pipe is wrapped around the deformed reinforcing bar 4a up to a part embedded into the concrete, including a connection portion exposed to the outside of the concrete of the unit member 100. The installation of (5) becomes more advantageous in terms of 휭 strength, including production costs.

In this case, when the stainless steel pipe 5 is installed only at a connection portion exposed to the concrete outside of the unit member 100, seawater or a gap is formed between the outer circumferential surface of the reinforcing bar 4a and the inner circumferential surface of the stainless steel pipe 5. Since the reinforcing steel can be corroded due to the inflow of river products, the stainless steel pipe 5 is installed to cover the portion of the unit member 100 that is exposed to the outside of the concrete and is embedded in the concrete. In the above, a part (L) of the stainless steel pipe 5 embedded in the concrete of the unit member 100 is set to a length that can be inserted at least 8 cm or more within 10 cm from the concrete surface.

As described above, since the length of the stainless steel pipe 5 inserted into the concrete in the state surrounding the outer circumferential surface of the reinforcing bar has a sufficient length within at least 8 cm and within 10 cm, the unit member 100 may be used for long periods of time. Even if it is locked in rivers, etc., the contact between the outer circumferential surface of the stainless steel pipe 5 and the concrete does not penetrate to the deformed rebar side, thereby preventing the part of the deformed rebar embedded in the concrete from being corroded.

At this time, even if the stainless steel pipe (5) has a tubular shape, as described above, by lengthening the length of the stainless steel pipe (5) inserted into the concrete within at least 8 cm or more within 10 cm and their contact portion Through this, it is possible to prevent the sea water or the river water from penetrating into the deformed rebar side. In particular, when the stainless steel pipe 5 has a corrugated pipe shape, the contact area between the stainless steel pipe 5 and the concrete It becomes wider than the tubular shape and can effectively prevent seawater or streams from seeping into the deformed rebar side through these contact portions.

On the other hand, the stainless steel pipe 5 itself has a smooth outer circumferential surface compared to the deformed reinforcing bar 4a due to the characteristics of the material, and as described above, the end of the stainless steel pipe 5 is embedded in concrete within about 8-10 cm. Even though it is a gap between the contact portion between the concrete and the outer circumferential surface of the stainless steel pipe (5) is generated by the adhesive member there is a risk that the reinforcing bar is corroded by sea water or river water soaked through this gap.

Therefore, in the present invention, a washer-shaped seal for preventing moisture inflow (9) made of silicon or rubber is additionally installed on the outer peripheral surface of the end portion of the stainless steel pipe 5 embedded in the concrete as needed. A gap is generated between the contact portions between the outer circumferential surfaces of the stainless steel pipe (5) with an adhesive force member, and when water or river water seeps through the gap, it seals moisture insulated from silicon or rubber (9). It is possible to generate the contact force between the contact surface between the stainless steel pipe (5) and the concrete by allowing it to be blocked and at the same time to disperse the water soaked in the concrete around the moisture inlet shield (9) This is caused by the inflow through the gap between the stainless steel pipe (5) such as seawater or river water and the concrete. It can completely prevent it rusting rebar.

At this time, the moisture inlet seal 9 made of silicon or rubber material is illustrated only one installed in the drawings, but is not limited to this, if necessary, install two or three at regular intervals 2 Through the gap that may occur between the concrete and the outer circumferential surface of the stainless steel pipe (5) in the middle or triple may be more completely prevented seawater or river water seeps into the side of the deformed rebar.

In the above, it was suggested that the moisture inflow blocking seal 9 was formed of silicone or rubber material. In reality, it is necessary to maintain elasticity and sealing force without being continuously cured in the state of being embedded in concrete for a long time. Rather than installing a rubber-induced moisture barrier seal (9), the moisture inlet barrier made of silicone has the property of maintaining elasticity without significant hardening even if the temperature change occurs severely over a long period of time. It is preferable to use the seal 9.

On the other hand, by connecting the unit member 100 having the configuration as described above to form a block mat 200, the construction method in the desired place is the same as in the prior art.

That is, as in the prior art, each unit member 100 is arranged horizontally and vertically as shown in FIG. 2 so as to have an overall planar area, and the connections overlapping or overlapping each other in the assembly gap 7 formed between the side surfaces which are in contact with each other. The block 4 may be formed by filling the shackle 6 in the ring 4 and connecting it in a plane.

As such, after forming the block mat 200 by interconnecting the unit members 100 using the shackle 6, the base portion of the shoreline structure such as a bridge or a breakwater is crushed by the flow velocity or the wave, or the surface of the breakwater In order to prevent the dead stones from falling and being lost and to reinforce the soft ground, the unit members are assembled and connected to the weight or more designed in consideration of the flow rate and flow velocity of the installation site. After forming the block mat 200 of the shape using a hook (8c) at the bottom of the wire rope (8b) provided in the unit member interval to the block mat moving frame (8a) that can be moved by a crane or the like as shown in FIG. Hook the unit member link (4) of the block mat 200 to move to the city factory to lay and then lay the block mat on top of it again.

In this case, the unit members constituting the upper and lower block mats may be constructed such that the upper and lower protrusions 1 and the recesses 2 are engaged with each other and the upper block mats cover the ends of the lower block mats.

As such, the unit members capable of distributing the loads in a planar manner are connected by the necessary loads in the design to form a block mat 200 in which the loads are distributed in a planar manner, and then the block mat 200 is the foundation of the piers as shown in FIG. 4. When constructing on the surface of the soft ground, including surrounding scour prevention construction, revetment construction of rivers as shown in FIG. 5, and renovation and sandstone coating construction of breakwater as shown in FIG. It can prevent ground subsidence, including loss prevention.

On the other hand, the unit members 100 to which the present invention is applied are provided with connecting rings on all sides for easy transportation and handling, and in addition to the above-described effects, the on-site assembly of the block mat is very convenient, and the number of assembly of the block mat Not only is it easy to grasp the weight, but it can also be assembled in accordance with the topographical requirements of the factory, where the flat shape of the block mat must be laid.

In addition, the block mat assembled in this way is a state in which the large weight necessary for the design is dispersed in a flat state, the connection of the unit member flows to adapt to the curvature of the surface of the construction site to be closely attached to the surface so that the rapids act on the surface It is possible to fundamentally prevent the loss of stone and crushed stone, especially when installed on the foundation of the structure such as the pier foundation part of the river with high flow rate and high velocity and the soft ground surface of the river bed. Since it is constructed in a plan, it effectively protects the foundation and the surface of the structure without suppressing the flow rate and flow rate.

Although the above-described embodiments have been described with respect to the most preferred embodiments of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention.

As described above, according to the present invention, it is possible to prevent the foundation part of the revetment structure such as a bridge or a breakwater from being crushed by the flow velocity or the wave, or the dead stone on the surface of the breakwater is lost and reinforced. When bending the connecting ring of the unit member to be used by connecting in the form of a block mat, including the entire connection portion exposed to the outside of the unit member of the connecting ring has a tubular or corrugated pipe form up to a portion embedded into the concrete After the stainless steel pipe is installed, it is bent, but if necessary, a moisture inlet blocking seal made of silicon or rubber is installed on the outer peripheral surface of the end of the stainless steel pipe embedded in the concrete. Cohesion and unit member strength are Even if the connection ring of the unit member installed in the form of being submerged in sea water or river water is prevented from being rusted and corroded by sea water or river water even after a long period of time, the connection status is poor or the connection part The unit members are separated from each other by cutting and the like to prevent the shape of the mat block from being disturbed, as well as preventing water pollution due to rust generated from the deformed reinforcing bars.

Claims (5)

In constructing a unit member for foundation reinforcement of a raft structure having protrusions and grooves alternately provided on the upper and lower sides and protruding connecting rings formed by a reinforcing bar on each side thereof, Bending together with the deformed reinforcing bar by installing a stainless steel pipe having a general tube or corrugated pipe to cover the deformed reinforcing bar up to a part embedded into the concrete including the entire connection part of the connection ring exposed to the outside of the unit member. Let's say On the outer peripheral surface of the end portion of the stainless steel pipe embedded in the concrete, the reinforcing structure foundation reinforcement unit member having a connecting ring corrosion prevention device, characterized in that a sealing for preventing moisture inlet is installed. delete The method according to claim 1, The length of the stainless steel pipe embedded in the concrete of the unit member is at least 8 cm or more within 10 cm from the concrete surface, the unit member for reinforcing structure foundation reinforcement structure having a linkage corrosion preventing device, characterized in that. delete The method according to claim 1, The inlet blocking seal is a member member for reinforcing structure foundation reinforcing structure having a connecting ring corrosion preventing device, characterized in that formed of silicon or rubber material.

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