KR20200034968A - Scour Protection Form and construction method using the same - Google Patents

Abstract

The present invention relates to a scour protection form and a construction method using the same. A scour protection form according to an embodiment of the present invention is a scour protection form which is installed to prevent a scour on the bank of a river. To this end, the present invention comprises: a first scour protection form installed on the bank of a river in a river flow direction; a plurality of second scour protection forms which are connected to one side of at least one first scour protection form; and a plurality of scour protection films which are provided between the first scour protection form and the plurality of second scour protection forms and/or between the adjacent second scour protection forms among the plurality of second scour protection forms, and connect the first scour protection form to the plurality of second scour protection forms, and the adjacent second scour protection forms to each other. Here, the first scour protection form and the plurality of second scour protection forms are characterized by being formed after a filling material injected into a fabric form is hardened.

Description

Scour Protection Form and construction method using the same}

The present invention relates to a scour guard and a construction method using the same, more specifically, it can be easily applied according to the installation location such as a river slope, a coastal slope, a breakwater slope, and for preventing scour compared to a conventional construction method using concrete It relates to a scour guard and a construction method using the scour guard which can reduce cost and time for installation, maintenance, and reinforcement work, and can increase the scour prevention effect.

Generally, scour means that the bottom of a coast, river, embankment, seabed or diverted channel is eroded mainly by water or blue waves in a river or coast. This scour phenomenon is inevitably affecting the stability of the hand structure because the soil adjacent to the hydraulic structure installed on the river or the coast is eroded by the flow of water.

Therefore, in order to keep the river or the shore and to safely protect the hand structure installed therein, it is necessary to prevent the excavation of earth and sand through various constructions such as shore, handicraft, hardening the floor, and installing aprons.

Accordingly, in order to prevent scour from the river or coast, floor blocks, concrete retaining walls, etc. are installed on river bottoms, river slopes, and coastal slopes. There was.

Accordingly, recently, various scour prevention structures have been introduced for easy installation on curved river slopes, coastal slopes, and the like, to enhance the scour prevention effect. In particular, a scour preventing structure for installing concrete blocks on a river slope or a coast slope is mainly used.

For example, in Korean Patent Registration No. 10-0657184 (River scour prevention structure) (announced on December 15, 2006), a number of floor concrete blocks installed on the bottom of a river and both sides of the floor concrete block Disclosed is a structure for preventing scour of a river that can be easily installed according to the curvature of a river by adjusting the angle at which a plurality of side wall concrete blocks are fixed and installed on the shore of a river.

However, in the conventional scour prevention structure using concrete, in order to install a concrete block on a river slope or a coastal slope, it is necessary to prioritize the surface of the slope (earthwork), install the cladding, etc., and install the concrete block. There was a problem that the cost and time for the increase. In addition, if secondary scour occurs after a certain time has elapsed since the concrete block was installed, there was a problem that a lot of cost and time for maintenance work (repair and reinforcement work) for the existing concrete block occurred.

Therefore, it can be easily applied according to the installation location such as river slope, coastal slope, breakwater slope, and can save cost and time for installation, repair, and reinforcement work to prevent scour compared to the conventional construction method using concrete. There is a need for a scour guard that can increase the prevention effect and a construction method using the same.

Korean Registered Patent Publication No. 10-0657184 (River scour prevention structure) (announced on December 15, 2006)

The present invention was invented to improve the above problems, and the problem to be solved by the present invention is easily applicable depending on the installation location, such as a river slope, a coastal slope, a breakwater slope, and the like compared to a conventional construction method using concrete. It is to provide a scour guard and a construction method using the scour guard that can reduce the cost and time for installation, repair, and reinforcement work to prevent scour, and increase the scour prevention effect.

The technical problem of the present invention is not limited to those mentioned above, and another technical problem not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the scour guard according to the first embodiment of the present invention, in the scour protection (Scour Protection Form) installed to prevent scour of the river slope, the river slope along the direction in which the river flows A first scour guard installed on the guard; A plurality of second scour guards connected to at least one side of the first scour guard; And between the first scour guard and the plurality of second scour guards, and between the second scour guard and adjacent second scour guards, the first scour guard and the It includes a plurality of second scour guard, a plurality of scour protective film connecting the second scour guard adjacent to each other, the first scour guard and the plurality of second scour guard are fillers injected into the fiber It is characterized in that it is formed by curing.

In this case, the plurality of second scour guards are continuously connected along a direction in which the stream flows to a first side provided in a direction toward the bottom of the stream, among one side of the first scour guard. Among the one side of the scour guard, it is continuously connected along the direction toward the bottom of the river to the second side provided in the direction toward the downstream of the river, or among the one side of the first scour guard, the first side and the It is characterized by being continuously connected to the second side.

In addition, the first scour guard and the plurality of second scour guards, respectively, are made of geosynthetics (Geosynthetics), the upper fabric and the lower fabric to form the fiber; A plurality of bonding portions arranged to bond the upper fabric and the lower fabric to each other; And it characterized in that it comprises a plurality of filling the curing agent is injected from the outside into the interior space between the upper fabric and the lower fabric, except for the plurality of joints.

In addition, the plurality of bonding parts, it characterized in that arranged in a zigzag form to bond the upper fabric and the lower fabric to each other.

In addition, the plurality of joining portions is selected from the group consisting of a square shape, a rectangular shape, a continuous cross shape, and a discontinuous cross shape.

On the other hand, in order to achieve the above object, the method for constructing a scour protection according to the first embodiment of the present invention is a scour protection that installs a scour protection form on the river slope to prevent scour of the river slope. A method for constructing a ball, comprising: installing a fibrous band constituting a scour guard on a river slope; And injecting a filler into the fiber band and then curing, wherein the scour protective ball comprises: a first scour protective ball installed on a river slope along a direction in which the stream flows; A plurality of second scour guards connected to at least one side of the first scour guard; And between the first scour guard and the plurality of second scour guards, and between the second scour guard and adjacent second scour guards, the first scour guard and the It characterized in that it comprises a plurality of second scour protection hole, a plurality of scour prevention film connecting the second scour protective hole adjacent to each other.

On the other hand, in order to achieve the above object, the scour protection according to the second embodiment of the present invention, in the scour protection (Scour Protection Form) installed to prevent scour of the coastal slope, fill the bent portion of the coastal slope At least one first scour protective ball formed by curing the filler injected into the first fibrous zone made of geosynthetics; And a second scour protector formed along the coastal slope in the state where the at least one first scour protector is installed in the bent portion, and a filler injected into a second fiber band made of geosynthetic fibers is cured. , The second scour guard is made of geotextile, the upper fabric and the lower fabric forming the second fiber band; A plurality of bonding portions arranged to bond the upper fabric and the lower fabric to each other; And it characterized in that it comprises a plurality of fillers that the filler injected into the interior space between the upper fabric and the lower fabric, except for the plurality of joints are cured.

At this time, the scour guard is provided at one end located deep along the coastal slope of one end of the second scour guard, and at least formed by curing the filler injected into the third fiber band made of geotextile One third scour guard; And at least one scourer provided between one end of the second scour guard and the at least one third scour guard, and connecting one end of the second scour guard and the at least one third scour guard. It characterized in that it further comprises a protective film.

On the other hand, in order to achieve the above object, the construction method of a scour guard according to the second embodiment of the present invention is a scour guard that installs a scour protection form on the coast slope to prevent scour of the coastal slope. A method of constructing a ball, the method comprising: installing a first fiber band constituting at least one first scour guard in a bent portion of a coastal slope; Filling the bent portion by curing after injecting a filler into the first fibrous zone; Installing a second fiber band constituting a second scour guard in the coastal slope while the at least one first scour guard is installed in the bent portion; And curing after injecting a filler into the second fibrous zone, wherein the second scour guard is made of geosynthetic fibers, and the upper and lower fabrics forming the second fibrous zone; A plurality of bonding portions arranged to bond the upper fabric and the lower fabric to each other; And it characterized in that it comprises a plurality of fillers that the filler injected into the interior space between the upper fabric and the lower fabric, except for the plurality of joints are cured.

On the other hand, in order to achieve the above object, the construction method of a scour guard according to the second embodiment of the present invention is a scour guard that installs a scour protection form on the coast slope to prevent scour of the coastal slope. A method of constructing a ball, the method comprising: installing a first fiber band constituting at least one first scour guard in a bent portion of a coastal slope; Filling the bent portion by curing after injecting a filler into the first fibrous zone; In the state where the at least one first scour guard is installed in the bent portion, a second fiber band constituting a second scour guard in the coastal slope, and at least one third provided at one end of the second scour guard. Installing a third fiber band constituting a scour protective ball; And injecting a filler into the inside of the second fibrous zone and the third fibrous zone, followed by curing, wherein the second scour guard is made of geosynthetic fibers and an upper fabric forming the second fibrous zone. And lower fabric; A plurality of bonding portions arranged to bond the upper fabric and the lower fabric to each other; And a plurality of filling portions in which a filler injected into an inner space between the upper fabric and the lower fabric excluding the plurality of bonding portions is cured, and one end of the second scour protective ball and the at least one third scour protective ball. Between is characterized by being connected to each other by at least one scour prevention film.

On the other hand, in order to achieve the above object, the scour guard according to the third embodiment of the present invention, in the scour protection (Scour Protection Form) installed to prevent scour of the breakwater slope, is installed along the breakwater slope , A plurality of Tetrapods are installed along the upper surface, and include a first scour protective ball formed by curing a filler injected into the first fiber band, wherein the first scour protective ball is Geosynthetics It is made of, and the upper fabric and the lower fabric forming the first fiber; A plurality of joints arranged in a zigzag form to join the upper fabric and the lower fabric to each other, and formed in a rectangular shape elongated in a direction perpendicular to the inclined direction of the breakwater slope; And it characterized in that it comprises a plurality of filling the curing agent is injected from the outside into the interior space between the upper fabric and the lower fabric, except for the plurality of joints.

At this time, the scour protection ball is installed to fill the bent portion of the breakwater slope, and further comprising at least one second scour protection ball formed by curing the filler injected into the second fiber band made of geotextiles. It is characterized by.

On the other hand, in order to achieve the above object, the method for constructing a scour guard according to a third embodiment of the present invention is a scour protection which installs a scour protection form on the slope of the breakwater to prevent scour of the breakwater slope. A method for constructing a ball, comprising: installing a first fiber band constituting a first scour protective ball along a slope of a breakwater; Curing after injecting a filler into the first fibrous zone; And installing a plurality of Tetrapods on the upper surface of the first scour guard, wherein the first scour guard is made of Geosynthetics and forms the first fibrous band. Upper and lower fabrics; A plurality of joints arranged in a zigzag form to join the upper fabric and the lower fabric to each other, and formed in a rectangular shape elongated in a direction perpendicular to the inclined direction of the breakwater slope; And it characterized in that it comprises a plurality of filling the curing agent is injected from the outside into the interior space between the upper fabric and the lower fabric, except for the plurality of joints.

In addition, prior to the step of installing the first fiber band along the slope of the breakwater, the step of installing a second fiber band constituting at least one second scour protective hole in the bent portion of the breakwater slope; And filling the bent portion by curing after injecting a filler into the second fibrous zone.

On the other hand, in order to achieve the above object, the scour guard according to the fourth embodiment of the present invention is a scour guard that is buried in the ground and installed to prevent scour around the pipeline through which fluid flows inside ( In the Scour Protection Form), a first scour protection hole disposed to surround an upper surface or a lower surface of a pipeline buried in the ground; And a pair of second scour guards formed integrally at both ends of the first scour guard and disposed to surround both sides of the pipeline, the first scour guard and the pair of agents 2 The scour protection hole is characterized in that the filler injected into the fiber band is formed by curing.

At this time, the filling agent is characterized in that it uses the soil for backfill excavated when excavating the ground.

On the other hand, in order to achieve the above object, the construction method of the scour protection according to the fourth embodiment of the present invention, the surrounding of the conduit to prevent scour around the conduit buried in the ground and flowing fluid therein A method for constructing a scour guard, in which a scour protection form is installed, comprising: excavating the ground and disposing a pipeline; Installing a fiber band constituting a scour protective hole to surround the pipeline; Injecting a filler in the interior of the fibrous so that the scour protection hole surrounds the pipeline and then curing; And filling the conduit with the soil over the scour guard to fill the pipeline and the scour guard, wherein the scour guard is a first scour guard that is disposed to surround an upper surface of the pipeline; And a pair of second scour guards formed integrally at both ends of the first scour guard and disposed to surround both sides of the pipeline.

On the other hand, in order to achieve the above object, the construction method of the scour protection according to the fourth embodiment of the present invention, the surrounding of the conduit to prevent scour around the conduit buried in the ground and flows fluid therein A method for constructing a scourge protector for installing a scourge protector, comprising: excavating the ground and installing a fiber band constituting the scourge protector; Arranging a conduit on an upper surface of the fiber band; Injecting a filler in the interior of the fibrous so that the scour protection hole surrounds the pipeline and then curing; And filling the conduit and the scour guard with the soil to fill the conduit and the scour guard, wherein the scour guard is a first scour guard that is disposed to surround the lower surface of the pipeline. ; And a pair of second scour guards formed integrally at both ends of the first scour guard and disposed to surround both sides of the pipeline.

Specific details of other embodiments are included in the detailed description and drawings.

According to the scour guard according to the embodiments of the present invention and a construction method using the scour guard, various types of scour guards formed by curing fillers injected into the fiber band according to the installation location such as a river slope, a coast slope, a breakwater slope, etc. By installing in combination, it is possible to reduce the cost and time for preventing scour compared to the construction method using conventional concrete, and to increase the scour prevention effect.

Particularly, according to the scour guard according to the first embodiment of the present invention and a construction method using the scour guard, a plurality of second scour guards capable of changing positions on at least one side of the first scour guard installed on a river slope By connecting, even if secondary scour occurs on the river slope where the scour guard is installed, the river slope where the secondary scour occurred with no additional maintenance work can be reinforced naturally, thus preventing scour of the river slope compared to the construction method using concrete. Save money and time.

In addition, according to the scour guard according to the second embodiment of the present invention and a construction method using the same, by using the first scour guard installed in the bent portion of the coastal slope and the second scour guard installed along the coastal slope, the coast It is possible to flatten the coastal slope through a simpler construction process without evening work (earthwork) on the bend of the slope, and it is possible to reduce the cost and time for preventing scour of the coastal slope compared to the construction method using concrete. .

In addition, according to the third embodiment of the present invention, a scour guard and a construction method using the same, by installing a mat type first scour guard on the slope of the breakwater and installing tetrapods on the upper surface, conventional cladding stone and tripod It is possible to increase the effect of preventing the scour of the breakwater slope compared to the construction method using and to reduce the cost and time for preventing the scour of the breakwater slope.

In addition, according to the scour protection ball according to the fourth embodiment of the present invention and a construction method using the same, by installing the scour protection ball formed by curing the filler injected into the fiber band so as to surround the periphery of the pipeline buried in the ground, In addition to preventing the surrounding scour of pipelines buried in the ground, stably fixing the pipelines and absorbing external shocks and vibrations transmitted to the pipelines to prevent damage to the pipelines, and when the pipelines buried in the ground are damaged by impact Even, it is possible to prevent the leakage of the internal fluid due to the breakage of the pipeline.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will become apparent to those skilled in the art from the description of the claims.

1 is a plan view schematically showing a scour protection ball according to a first embodiment of the present invention.
FIG. 2 is a view showing an example of connection between a first scour guard and a second scour guard, which constitute a scour guard according to the first embodiment of the present invention.
FIG. 3 is a view showing the structure of a first scour guard which constitutes a scour guard according to the first embodiment of the present invention.
FIG. 4 is a view showing a structure in which a plurality of joints constituting the first scour guard of the scour guard according to the first embodiment of the present invention are arranged in a zigzag form.
5 is a view showing various examples of joints constituting the first scour protection hole of the scour protection hole according to the first embodiment of the present invention.
FIG. 6 is a view showing a structure in which a plurality of joints shown in FIG. 5 are arranged in a zigzag form.
7 is a flow chart showing a scour protection system construction method according to a first embodiment of the present invention.
8 is a view sequentially showing a scour protection method construction method according to a first embodiment of the present invention.
9 is a plan view showing a state in which a scour guard according to a first embodiment of the present invention is installed on a river slope.
10 is a cross-sectional view showing a state in which a scour guard according to a first embodiment of the present invention is installed on a river slope.
FIG. 11 is a view showing a state in which a first scour guard and a second scour guard are configured on a coastal slope constituting a scour guard according to a second embodiment of the present invention.
12 is a view schematically showing the structure of a first scour guard which constitutes a scour guard according to a second embodiment of the present invention.
13 is a view schematically showing the structure of a second scour guard which constitutes a scour guard according to a second embodiment of the present invention.
FIG. 14 is a view showing a state in which a first scour guard, a second scour guard and a third scour guard are installed on a coastal slope constituting a scour guard according to a second embodiment of the present invention.
15 is a flow chart showing a scour protection method construction method according to a second embodiment of the present invention.
FIG. 16 is a view showing a state in which a first scour guard is provided to constitute a scour guard according to a second embodiment of the present invention.
FIG. 17 is a view showing a state in which a second scour guard is provided to constitute a scour guard according to a second embodiment of the present invention.
FIG. 18 is a view showing a state in which a first scour protective ball constituting a scour protective ball according to a third embodiment of the present invention is installed on a breakwater slope.
19 is a view schematically showing the structure of a first scour guard which constitutes a scour guard according to a second embodiment of the present invention.
FIG. 20 is a view showing a state in which a first scour guard and a second scour protector constituting a scour guard according to a third embodiment of the present invention are installed on a breakwater slope.
21 is a flow chart showing a scour protection method construction method according to a third embodiment of the present invention.
FIG. 22 is a view showing a state in which a first scour guard is provided to constitute a scour guard according to a third embodiment of the present invention.
23 is a view showing a state in which a pipeline is buried in the ground using a scour guard according to a fourth embodiment of the present invention.
24 is a view schematically showing a structure of a fiber band constituting a scour protective ball according to a fourth embodiment of the present invention.
25 is a flowchart illustrating an example of a method for constructing a scour protection according to a fourth embodiment of the present invention.
26 is a view showing an example of a state in which a pipeline is buried in the ground using a scour protection according to a fourth embodiment of the present invention.
27 is a flowchart illustrating another example of a method for constructing a scour protection according to a fourth embodiment of the present invention.
28 is a view showing another example of a state in which a pipeline is buried in the ground by using a scour guard according to a fourth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention.

In describing the embodiments, descriptions of technical contents well known in the technical field to which the present invention pertains and which are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention by omitting unnecessary description.

For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated. Also, the size of each component does not entirely reflect the actual size. The same reference numbers are assigned to the same or corresponding elements in each drawing.

In addition, the device or element orientation (eg "front", "back", "up", "down", "top", "bottom") The expressions and predicates used herein with respect to terms such as "," left "," right "," lateral ", etc. are only used to simplify the description of the present invention, and related devices Or you will see that the element simply indicates or does not mean that it should have a specific direction.

Hereinafter, the present invention will be described with reference to the drawings for explaining a scour guard and a construction method using the same according to embodiments of the present invention.

First, with reference to FIGS. 1 to 10, the scour protection according to the first embodiment of the present invention and a construction method using the same will be described.

1 is a plan view schematically showing a scour guard according to a first embodiment of the present invention, and FIG. 2 is a first scour guard and a second scour guard that constitutes a scour guard according to a first embodiment of the present invention It is a figure showing an example of connection of a ball.

The scour protection form 100 according to the first embodiment of the present invention may be installed on the river slope G to prevent scour of the river slope (G in FIG. 8). As shown in Figures 1 and 2, the scour guard 100 according to the first embodiment of the present invention, the first scour guard 110, a plurality of second scour guard 120 and a plurality of It may be configured to include a scour prevention film 130.

1 and 2, the first scour protection ball 110 constituting the scour protection ball 100 according to the first embodiment of the present invention is a mat type scour protection ball, The plurality of second scour guards 120 may use a mat type or bag type scour guard.

The first scour protection hole 110 may be installed on the river slope G along the direction in which the river flows (in the example of FIG. 1, the lower direction). As shown in FIG. 1, the first scour protective hole 110 may be formed by curing the filler M1 injected into the first fiber band 111. At this time, the first fiber band 111 constituting the first scour protection ball 110 is excellent in tensile strength and elongation (break) at break, such as polyester and polypropylene. It can be made of high-strength geotextile.

In addition, the first fibrous 111 may be formed with one or a plurality of first filler inlets 111c for injecting the filler M1 at appropriate positions. Although not shown in detail, the first filler inlet 111c may have a cylindrical tube shape formed to extend from the surface of the first fiber band 111, and may be closed with a cord or the like after injection of the filler M1. have.

The filler (M1) may be selected from the group consisting of concrete, cement, mortar, rubble, soil or sand. Preferably, the filler (M1) may be used rubble, soil or sand, which can be easily obtained around the river slope (G). Alternatively, when concrete, cement, mortar, etc. are used as the filler (M1), the filler (M1) is mounted on a ready-mixed car in a state of being prepared in a paste state and is transferred to the installation site of the first scour guard 110 In general, however, it is preferable to be manufactured by field mixing according to the shape, state, etc. of the river slope G on which the first scour protection 110 is installed.

For example, in the case of a river slope (G) having a special environment such as soft ground, wetland, etc., it is difficult to enter the remicon car, and if the remicon car travels approximately 2 hours or under unfavorable conditions such as unpaved roads, the remicon car There is a problem that the filler (M1) prepared in advance can not be used at the installation site.

However, the scour guard 100 according to the first embodiment of the present invention is easy to move to the installation site in the state of the first fibrous 111 where the filler (M1) is not injected, and the filler after being installed on the ground ( Since M1) is an injection method, when using a filler (M1) manufactured by a field beam, there is an advantage that it can be easily constructed even on a river slope (G) in a poor environment such as soft ground.

On the other hand, for convenience of explanation, FIGS. 1 to 4 illustrate an example in which one first scour protection ball 110 having a rectangular shape is installed on a river slope G, but if necessary, a plurality of first scour protections The ball 110 may be installed. In addition, the first scour guard 110 may be installed as one integral type when the area for installing the scour guard 100 is determined according to the shape and state of the river slope G, or a plurality of first scour guards The balls 110 may be installed adjacent to each other. The structure of the first scour protection hole 110 will be described in detail later with reference to FIGS. 3 to 6.

The second scour protector 120 may be connected to at least one side of the first scour protector 110. At this time, a plurality of second scour guards 120 may be connected to at least one of one side of the first scour guard 110 according to the shape, state, etc. of the river slope G installed.

As shown in FIG. 1, the second scour protection hole 120 may be formed by curing the filler M2 injected into the second fiber band 121. Similar to the first scour protective ball 110, the second fibrous band 121 constituting the second scour protective ball 120 is made of high-strength geotextile fibers such as polyester and polypropylene, and the filler (M2) is concrete, It can be selected from the group consisting of cement, mortar, rubble, soil or sand. In addition, one or a plurality of second filler inlets 121c for injecting the filler M2 at an appropriate position may be formed in the second fiber holder 121.

As will be described later, the second scour guard 120 may serve to reinforce a portion where scour has occurred when secondary scour occurs in the river slope G where the scour guard 100 is installed.

The scour prevention film 130 is between the first scour protective ball 110 and the plurality of second scour guards 120, and the second scour guard 120 adjacent to each other among the plurality of second scour guards 120. It may be provided in at least one of the.

The scour prevention layer 130 connects the first scour guard 110 and a plurality of second scour guards 120, or the second scour guard 120 adjacent to each other among the plurality of second scour guards 120 ), But also between the first scour guard 110 and the plurality of second scour guards 120, or, among the plurality of second scour guards 120, second scour guards adjacent to each other ( 120) may serve to prevent additional scour that may occur between.

1 and 2, the scour prevention film 130 includes a first scour prevention film 131 connecting the first scour protection hole 110 and a plurality of second scour protection holes 120, and a plurality of It may be divided into a second scour protection film 132 connecting the second scour protection holes 120 adjacent to each other among the second scour protection holes 120.

1 and 2 show an example in which both the first scour prevention film 131 and the second scour prevention film 132 are provided, but if necessary, in some positions, the first scour prevention film 131 or the second scour prevention film All or part of 132 may be omitted.

The scour prevention film 130 may include a plurality of second scour protection holes 110 and a plurality of second scour protection holes 120, or a second scour protection hole 120 adjacent to each other. Flexibility may be provided to cope with a change in the position of the scour protection ball 120.

Preferably, as shown in Figure 2, the scour prevention film 130 is folded in several layers in the first scour protection hole 110 and the plurality of second scour protection holes 120, or, adjacent to each other 2 can connect the scour guard (120). The scour prevention film 130 may be made of high-strength geotextiles having excellent tensile strength and elongation and high water permeability coefficient, such as polyester and polypropylene.

On the other hand, the plurality of second scour guards 120, one side of the first scour guard 110, the direction in which the river flows to the first side (I side in FIG. 2) provided in the direction toward the bottom of the river ( In the example of FIG. 2, the bottom of the river is continuously connected along the lower side), or the second side (II side of FIG. 2) provided in the direction toward the downstream of the river among one side of the first scour guard 110. It may be continuously connected along the direction toward, or may be continuously connected to both the first side (I side in FIG. 2) and the second side (II side in FIG. 2).

1 and 2, a plurality of second scour guards 120 are connected to both the first side (I side in FIG. 2) and the second side (II side in FIG. 2) of the first scour guard 110. Although an example is shown, it may be connected only to the first side (I side in FIG. 2) or the second side (II side in FIG. 2), if necessary.

Meanwhile, in FIGS. 1 and 2, the second scour protection ball 120 connected to the first side (the I side of FIG. 2) of the first scour protection ball 110 is formed of a plurality of rows and columns, and the first scour protection Although the second scour protection ball 120 connected to the second side of the ball 110 (II side in FIG. 2) is shown as an example consisting of a single row and a plurality of columns, depending on the shape, state, etc. of the river slope G The number and arrangement form of the second scour guards 120 may be changed.

Meanwhile, FIGS. 1 and 2 show an example in which the thickness of the first scour protective hole 110 and the plurality of second scour protective holes 120 are the same as each other, but may be performed according to the shape and state of the river slope G. The thickness of the first scour protection hole 110 and the second scour protection hole 120 may be formed differently.

Hereinafter, with reference to FIGS. 3 to 6, the structures of the first scour protection ball 110 and the second scour protection ball 120 constituting the scour protection ball 100 according to the first embodiment of the present invention will be described in detail. It will be described as. Since the structure of the first scour protector 110 and the structure of the second scour protector 120 are similar, the structure of the first scour protector 110 will be described as an example.

FIG. 3 is a view showing the structure of a first scour guard which constitutes a scour guard according to the first embodiment of the present invention.

3 (a) shows the planar structure of the first scour protective hole 110, and FIG. 3 (b) shows the cross-sectional structure of the first scour protective hole 110.

As shown in FIG. 3, the first scour protection hole 110 may include an upper fabric 111a, a lower fabric 111b, a plurality of joining portions 111c, and a plurality of filling portions 112. .

The upper fabric 111a and the lower fabric 111b are made of geosynthetics, and may form the first fiber band 111. As described above, the upper fabric 111a and the lower fabric 111b may be made of high-strength geotextiles having excellent tensile strength and elongation such as polyester and polypropylene and high water permeability coefficient. Although not shown in detail, the upper fabric 111a and the lower fabric 111b may be made of one layer each, or may be made of multiple layers as necessary to increase weight, tensile strength, and the like.

The plurality of filter parts 111c may be disposed at corresponding positions of the upper fabric 111a and the lower fabric 111b so as to bond the upper fabric 111a and the lower fabric 111b to each other. The plurality of joints 111c is bonded to the lower fabric 111b (or upper fabric 111a) while being formed on the upper fabric 111a (or lower fabric 111b), or the upper fabric 111a It may be bonded to each formed on the lower fabric (111b). Since each joining portion 111c can serve as a filter at the same time as bonding the upper fabric 111a and the lower fabric 111b to each other, unlike the conventional concrete structure, the drainage function is excellent, so the river slope (G) has the advantage of being advantageous.

The plurality of filling parts 112 means an inner space excluding a plurality of joining parts 111c between the upper fabric 111a and the lower fabric 111b (that is, the inside of the first fiber band 111), and the upper part The filler M1 injected from the outside into the inner space between the fabric 111a and the lower fabric 111b may be cured. As will be described later, the shape of each of the plurality of filling portions 112 is determined according to the shape and arrangement form of each of the plurality of joining portions 111c, and the shape of the river slope G to install the scour protection hole 100, It can be appropriately designed according to conditions.

On the other hand, a plurality of joints (111c) constituting the first scour protection ball 110 of the scour protection ball 100 according to the first embodiment of the present invention, the upper fabric (111a) and the lower fabric (111b) to each other It can be arranged in a zigzag form to join.

FIG. 4 is a view showing a structure in which a plurality of joints constituting the first scour guard of the scour guard according to the first embodiment of the present invention are arranged in a zigzag form.

FIG. 4 (a) shows a planar structure when a plurality of joining portions 111c constituting the first scour protection hole 110 are arranged in a zigzag form, and FIG. 4 (b) shows the first scour protection. The cross-sectional structure when a plurality of joining portions 111c constituting the ball 110 are arranged in a zigzag form is illustrated.

That is, FIG. 3 illustrates a state in which a plurality of joints 111c constituting the first scour protection hole 110 are disposed in a row and column form having regular intervals, but in FIG. 4, joints formed in adjacent rows or columns ( 111c) shows a state arranged in a zigzag form to cross each other.

As shown in (a) of FIG. 4, when a plurality of joining portions 111c constituting the first scour protection hole 110 are arranged in a zigzag form, as shown in FIG. 4 (b), the filler Since the thickness of each of the plurality of filling parts 112 cured by injecting (M1) is evenly distributed, a problem that a specific part may be vulnerable can be solved, thereby increasing the overall strength. In addition, as shown in Figure 4 (a), when a plurality of joints (111c) constituting the first scour protection hole 110 in a zigzag form, as shown in Figure 4 (b) , Since the plurality of filling parts 112 are arranged in a zigzag form, it is possible to increase the frictional force acting on the upper and lower surfaces of the first scour protection hole 110.

Meanwhile, FIGS. 3 and 4 illustrate an example in which each of the plurality of joining portions 111c constituting the first scour protection ball 110 of the scour protection ball 100 according to the first embodiment of the present invention is in a square shape. However, each of the plurality of bonding portions 111c may have various shapes. Preferably, the plurality of joining portions 111c may be selected from the group consisting of a rectangular shape, a continuous cross shape, and a discontinuous cross shape in addition to the square shape.

FIG. 5 is a view showing various examples of joints constituting the first scour guard of the scour guard according to the first embodiment of the present invention, and FIG. 6 is a plurality of joints shown in FIG. 5 arranged in a zigzag form It is a diagram showing the structure.

5 (a) shows an example in which each joining portion 111c has a rectangular shape, and FIG. 5 (b) shows an example in which each joining portion 111c has a continuous cross shape. ) Shows an example in which each joining portion 111c has a discontinuous cross shape.

As described above, the scour protection ball 100 according to the first embodiment of the present invention has the shape of each of the plurality of joining portions 111c constituting the first scour protection ball 110 according to the shape and state of the river slope G By modifying the, the strength and friction of the first scour protection ball 110 can be adjusted, so that it can be applied to river slopes G of various conditions and to have sufficient strength regardless of the shape change of the river slope G. can do.

Meanwhile, in FIGS. 3 to 6, only the structure of the first scour protection hole 110 is described, but the structure shown in FIGS. 3 to 6 can be applied to the second scour protection hole 120 as it is.

In addition, FIGS. 3 to 6 show an example in which each of the plurality of joining portions 111c constituting the first scour protection hole 110 is formed in the same shape (such as a square shape), but if necessary, a plurality of joining portions ( 111c) may be formed by combining different shapes (for example, a square shape and a rectangular shape). In addition, although FIG. 3 to FIG. 6 show an example in which a plurality of junctions 111c are arranged to have the same spacing along the rows and columns, specific rows or specific columns may be arranged to have different spacings as necessary. It might be.

Hereinafter, with reference to FIGS. 7 to 10, a method of constructing a scour protection hole 100 according to a first embodiment of the present invention configured as described above on a river slope G will be described.

7 is a flow chart showing a method for constructing a scour guard according to a first embodiment of the present invention, FIG. 8 is a diagram sequentially showing a method for constructing a scour guard according to the first embodiment of the present invention, and FIG. Fig. 10 is a plan view showing the appearance of a scour guard according to a first embodiment of the invention installed on a river slope, and Fig. 10 is a cross-sectional view showing the appearance of a scour guard according to the first embodiment of the present invention on a river slope.

7 and 8 (a), in order to construct the scour protection ball 100 according to the first embodiment of the present invention, first, the slope of the river to install the scour protection ball 100 ), The first fiber band 111 of the first scour protection ball 110 and the second fiber of the second scour protection ball 120 constituting the scour protective ball 100 in a state in which the filler M1 is not injected A stand 121 may be installed (S110).

As described above, the first fibrous member 111 of the first scour protective ball 110 to which the filler M1 is not injected and the second fibrous band 121 of the second scour protective ball 120 have a wide cloth and Since it has the same shape, it can naturally unfold along the shape of the river slope (G). At this time, the first filler injection hole (111c) and the second filler injection hole (121c) may be formed in an appropriate number of each of the fiber (121, 121) a predetermined position to facilitate the filler (M1) injection operation.

After installing the first fibrous 111 of the first scour guard 110 and the second fibrous 121 of the second scour guard 120 on the river slope G, FIGS. 7 and 8 As shown in (b), the filler (M1) in the first fibrous 111 of the first scour protective ball 110 and the second fibrous 121 of the second scour protective ball 120 (M1) After injection it can be cured (S120).

As shown in Figure 8 (b), the filler (M1) is the first fibrous protector 111 of the first scour guard 110 and the second fibrous guard 121 of the second scour guard 120 A plurality of filling parts 112 that are injected through the first filler inlet 111c and the second filler inlet 121c formed in the constitution, and constitute the first scavenger protector 110 and the second scour protector 120 During the injection of the filler M1, the design may expand by a predetermined size. Although not shown, after the injection of the filler M1, the filler injection hole 121 may be tied with a cord or the like to cleanly finish.

On the other hand, after a certain period of time after the scour protection ball 100 is installed on the river slope G, a second scour occurs according to the flow of the river, each second scour constituting the scour protection ball 100 The guard 120 may move naturally depending on the terrain of the portion where the secondary scour occurs.

9 and 10, when the second scour occurred at a specific location G2 of the river slope G, the plurality of second scour protective guards 120 moved corresponding to the location G2 where the second scour occurred. It shows the state.

That is, FIG. 9 shows a state in which a part of the plurality of second scour protective holes 120 is moved in a horizontal direction from the position G2 where the second scour is generated, and FIGS. 10 (a) and 10 (b) In the figure, the position of some of the plurality of second scour guards 120 is moved in the vertical direction from the position G2 where the second scour occurred.

At this time, the plurality of second scour guards 120 are moved to the topography of the portion where the scour occurred in the location where the second scour occurred (G2) and are fixed at the corresponding location, so the location where the second scour occurred (G2) It is not necessary to perform an additional reinforcing work for, but it is possible to prevent the additional scour from occurring by the plurality of scour prevention films 130 provided between the plurality of second scour guards 120.

Meanwhile, FIGS. 8 to 10 show an example in which the scour protection 100 is installed on a river slope G in a flat state by earthwork (pick a surface), but the scour protection according to the first embodiment of the present invention The ball 100 may be installed on a river slope G with curvature without earthwork.

As described above, the scour protection ball 100 according to the first embodiment of the present invention includes a plurality of second scours capable of changing positions on at least one side of the first scour protection ball 110 installed on the river slope G By connecting the guard hole 120, even when the second scour occurs on the river slope G where the scour guard is installed, the river slope G where the second scour occurred without additional maintenance work can be naturally reinforced, so conventional Compared to the construction method using concrete, it is possible to reduce the cost and time for preventing scour of the river slope (G).

Hereinafter, with reference to FIGS. 11 to 17, the scour protection and the construction method using the same according to the second embodiment of the present invention will be described.

FIG. 11 is a view showing a state in which a first scour guard and a second scour guard are installed on a coastal slope constituting a scour guard according to a second embodiment of the present invention, and FIG. 12 is a second embodiment of the present invention. It is a diagram schematically showing the structure of the first scour guard, which constitutes the scour guard, and FIG. 13 schematically shows the structure of the second scour guard, which constitutes the scour guard according to the second embodiment of the present invention. It is a drawing.

The scour guard 200 according to the second embodiment of the present invention is installed on the coast slope G to prevent scour of the coast slope G, and the plurality of first scour guards 210 and the second scour It may be configured to include a protective ball (220).

11 to 13, the scour protective ball 200 according to the second embodiment of the present invention, each of the plurality of first scour guards 210, a bag type (Bag type) scour guard In addition, the second scour protection ball 220 may use a mat type scour protection ball.

As illustrated in FIG. 11, the first scour protection ball 210 may be installed to fill a bent portion (G1 in FIG. 11) of the coastal slope G to install the scour protection ball 200. Accordingly, the first scour protection ball 210 may flatten the bent portion G1, such as a picking operation (earthwork) for the bent portion G1 of the coastal slope G.

In addition, as shown in FIG. 12, the first scour protection hole 210 may be formed by curing the filler M1 injected into the first fiber band 211 made of geosynthetic fibers. At this time, the first fiber band 211 constituting the first scour protection 210 is made of high-strength geotextiles having high tensile strength and elongation such as polyester and polypropylene and high water permeability coefficient, and a filler (M1). May be selected from the group consisting of concrete, cement, mortar, rubble, sand or sand.

On the other hand, such a first fiber band 211 may have a variety of sizes and shapes depending on the shape of the bent portion (G1), in Figure 12 (a), the cross section of the first fiber band 211 is a square or rectangular shape Although an example is shown and FIG. 12B shows an example in which the cross section of the first fiber band 211 is an elliptical shape, the shape of the first fiber band 211 is not limited thereto.

In addition, as illustrated in FIG. 12, the first fiber band 211 may be formed with one or a plurality of first filler injection holes 211a and 211b to inject the filler M1 at an appropriate location. If the first filler injection hole (211a, 211b) has a cylindrical tube shape formed to extend from the surface of the first fiber band 211, after the injection of the filler (M1) it can be closed with a string or the like.

In FIG. 12, the first filler inlets 211a and 211b have a first short filler inlet 211a having a relatively short length (within about 1 to 2 m) and a first filler filler with a relatively long length (about 10 m or more). An example divided by (211b) is illustrated, but is not limited thereto. In addition, as illustrated in FIG. 12, when a plurality of first filler injection holes 211a and 211b having different lengths or shapes are provided, the first filler injection holes 211a and 211b required according to the construction location, site conditions, and the like You can select and use.

Referring back to FIG. 11, the second scour guard 220 is installed along the coastal slope G with at least one first scour guard 210 installed in the bent portion G1 of the coastal slope G And, like the first scour protection 210, the filler (M2) injected into the second fiber band 221 made of geotextile may be formed by curing.

As shown in FIG. 13, the second scour protective ball 220 is made of geosynthetic fibers, and the upper fabric 221a and the lower fabric 221b forming the second fiber base 221, and the upper fabric 221a. ) And the filling agent (M2) injected into the inner space between the upper fabric 221a and the lower fabric 221b except for the plurality of bonding portions 221c and the plurality of bonding portions 221c arranged to bond the lower fabric 221b to each other. It may be configured to include a plurality of filling portion 222 is cured. Preferably, the plurality of joining portions 221c constituting the second scour protection hole 220 may be arranged in a zigzag form so as to join the upper fabric 221a and the lower fabric 221b to each other.

As shown in FIG. 13, the second scour protection ball 220 constituting the scour protection ball 200 according to the second embodiment of the present invention, the scour protection ball 100 according to the first embodiment of the present invention ) May have a structure substantially the same as the first scour protection hole 110 constituting. That is, the second scour protection ball 220 constituting the scour protection ball 200 according to the second embodiment of the present invention may have the form shown in FIGS. 5 and 6 as well as the example shown in FIG. 13. It might be.

As described above, the scour guard 200 according to the second embodiment of the present invention is installed along the first scour guard 210 and the coast slope G installed in the bent portion G1 of the coast slope G By using the second scour protection ball 220, it is possible to flatten the coastal slope G through a simpler construction process without evening (earthwork) with respect to the bent portion G1 of the coastal slope G, conventional Compared to the construction method using concrete, it is possible to reduce the cost and time for preventing scour of the coastal slope (G).

On the other hand, the scour guard 200 according to the second embodiment of the present invention is a plurality of first scour guard 210, second scour guard 220, in addition to the second scour guard 220 is connected to 3 may further include a scour guard 230.

FIG. 14 is a view showing a state in which a first scour guard, a second scour guard and a third scour guard are installed on a coastal slope constituting a scour guard according to a second embodiment of the present invention.

As shown in (a) of Figure 14, the third scour guard 230 is provided at one end located deep along the coastal slope (G) of one end of the second scour guard 220, geotextile Filler (M3) injected into the inside of the third fiber band 231 may be formed by curing.

FIG. 14 (a) shows an example in which the third scour protective ball 230 is a bag type similar to the first scour protective ball 210, but a mat similar to the second scour protective ball 220 You can also use the Mat type. In addition, for convenience of description, FIG. 14 (a) shows an example in which one third scour guard is installed, but if necessary, a plurality of third scour guards 230 may be installed.

On the other hand, as shown in Figure 14 (a), the scour protection ball 200 according to the second embodiment of the present invention, one end of the second scour protection ball 220 and the third scour protection ball 230 It is provided between, and may further include at least one scour prevention film 240 connecting one end of the second scour protection hole 220 and the third scour protection hole 230. Since the structure and function of the scour prevention film 240 is substantially the same as the scour prevention film 130 constituting the scour protection hole 100 according to the first embodiment of the present invention, a detailed description thereof will be omitted.

As shown in (b) of FIG. 14, the third scour protective ball 230 is connected to one end of the second scour protective ball 220, and is secondary to a specific location G2 of the coastal slope G. When the oyster occurs, the third scour guard 230 moves in response to the location (G2) where the second scour occurred, so that it is not necessary to perform additional reinforcement work to the location (G2) where the second scour occurred. , It is possible to prevent the occurrence of additional scour by the scour prevention film 240 connecting the second scour protection hole 220 and the third scour protection hole 230.

Hereinafter, with reference to FIGS. 15 to 17, a method of constructing the scour protection ball 200 according to the second embodiment of the present invention configured as described above on the coastal slope G will be described.

15 is a flow chart showing a method for constructing a scour guard according to a second embodiment of the present invention, and FIG. 16 is a view of installing a first scour guard that constitutes a scour guard according to a second embodiment of the present invention 17 is a view showing a state in which a second scour guard is provided to constitute a scour guard according to a second embodiment of the present invention.

15 and 16, in order to construct the scour guard 200 according to the second embodiment of the present invention, first, the bent portion of the coastal slope G to install the scour guard 200 is ( After installing the first fiber band 211 constituting the first scour protection hole 210 in G1 (S210), the filler (M1) is injected into the interior of the first fiber band 211 and then cured to bend the portion. (G1) may be filled (S220).

As shown in FIG. 16, the filler M1 is injected through the first filler inlet 211a or 211b formed in the first fiber band 211 of the first scour guard 210, and the first scour guard is The first fiber band 211 of 210 may expand to a predetermined size by design while filling the bent portion G1 while filling the filler M1.

FIG. 16 (a) shows an example of injecting the filler M1 into the first fiber band 211 installed in the bent portion G1 located at a relatively low water level on the ground, and in FIG. 16 (b) It shows an example of injecting the filler (M1) into the first fiber band 211 installed in the bent portion (G1) located at a relatively deep depth in the barge or the like floating in the barge.

On the other hand, although not shown, the first fiber band 211 of the first scour protection 210 installed in the bent portion G1 of the coastal slope G is to be installed in a state in which the filler M1 is not injected. As well as, if necessary, a part of the filler M1 may be installed while being injected.

At this time, the first filler inlet 211a having a relatively short length (within about 1 to 2 m) formed on the first fiber band 211 is used for partially injecting rubble, soil or sand on the ground, and has a relatively long length. The first filler inlet 211b (about 10 m or more) may be used when injecting concrete, cement, mortar, etc. in a state where the first fiber band 211 is installed in the bent portion G1.

Referring back to FIG. 15, after installing the first scour protection hole 210 in the bent portion G1 of the coastal slope G (S220), as shown in FIGS. 15 and 17A, the bent portion In the state in which the first scour guard 210 is installed in (G1), the second fiber 221 forming the second scour guard 220 is installed on the coastal slope G (S230), FIG. 15 And as shown in Figure 17 (b), it may be cured after the filler (M2) is injected into the interior of the second fiber band (221) (S240).

17 (b) shows an example of injecting the filler (M2) into the second fiber base 221 located at a relatively low water depth on the ground, but in FIG. 16 (b), the barge floating on the shore (Barge) ), The filler (M2) may be injected into the second fiber base 221 located at a relatively deep depth.

On the other hand, although not shown, when the scour guard 200 according to the second embodiment of the present invention further includes a third scour guard 230 connected to the second scour guard 220, the coast In the state in which the first scour protective ball 210 is installed in the bent portion G1 of the slope G, the second fibrous belt 221 and the third constituting the second scour protective ball 220 on the coastal slope G After simultaneously installing the third fibrous unit 231 constituting the scour guard, 230, after injecting fillers M2 and M3 into the second fibrous unit 221 and the third fibrous unit 231 Can be cured.

Hereinafter, with reference to FIGS. 18 to 22, the scour protection and construction method according to the third embodiment of the present invention will be described.

18 is a view showing a state in which the first scour guard, which constitutes the scour guard according to the third embodiment of the present invention, is installed on the slope of the breakwater, and FIG. 19 shows a scour guard according to the second embodiment of the present invention It is a figure schematically showing the structure of the first scour protection ball.

The scour protection ball 300 according to the third embodiment of the present invention may be configured to include a first scour protection ball 310 installed on the breakwater slope BW to prevent scour of the breakwater slope BW. .

18 and 19, the first scour protection ball 310 constituting the scour protection ball 300 according to the third embodiment of the present invention is injected into the interior of the first fiber band 311 It is possible to use a mat-type scour protective ball formed by curing the filler (M1).

Fig. 18 (a) shows a conventional scour prevention structure for preventing scour of the breakwater slope BW. As shown in (a) of Figure 18, the conventional scour prevention structure for the breakwater slope (BW) is evenly flattened the breakwater slope (BW) composed of the base sand and body sand, covering stone 10 and tripod (Tripod) ) 20, and then, a tetrapod 30 is installed thereon. At this time, the cladding stone 10 and the tripod 20 serve to protect the basic or zeolite and prevent scour, and the tetrapod 30 reduces the wave height of blue incident from the open sea, and the basic grit or ash It serves to prevent the leakage of sandstone.

However, the conventional scour prevention structure for the breakwater slope (BW) is a construction for evenly flattening the breakwater slope (BW) composed of a base stone and a sandstone, a construction stone and a tripod 20, and a construction and evening operation (earthwork) ) Is not only essential, but the tripod 20 and the tetrapod 30 are disadvantageous in that it is difficult to cope with the bending of the breakwater slope (BW) and difficult to install precisely. In particular, there is a disadvantage in that it is difficult to perform the construction and picking work of the cover stone 10 and the tripod 20 underwater, so that a cladding or the like must be installed. In addition, only the structures of the cladding stone 10, the tripod 20, and the tetrapod 30 have limitations in preventing outflow due to scour of the basic or re-seed stone.

However, as shown in Fig. 18 (b), the scour protection hole 300 according to the third embodiment of the present invention is formed by curing the filler (M1) injected into the interior of the first fiber band 311 Conventional for the breakwater slope (BW) by installing the first scour protection hole 310 of the mat type along the breakwater slope (BW), and then by installing a plurality of tetrapods (30) along the upper surface It is possible to easily solve the problems occurring in the scour prevention structure and construction process.

On the other hand, as shown in Figure 19, the first scour protection 310 is made of geotextile, the upper fabric 311a and the lower fabric (311b), the upper fabric forming the first fibrous 311, the upper fabric Filler injected into the inner space between the upper fabric 311a and the lower fabric 311b except for the plurality of bonding portions 311c and the plurality of bonding portions 311c arranged to bond the 311a and the lower fabric 311b to each other ( M1) may be configured to include a plurality of filling portions 312 to be cured.

In particular, as shown in (a) of FIG. 19, the plurality of bonding portions 311c are arranged in a zigzag form to bond the upper fabric 311a and the lower fabric 311b to each other, and the inclined direction of the breakwater slope BW It may be formed in a rectangular shape long formed in a direction perpendicular to. Therefore, as shown in (b), (c), and (d) of FIG. 19, the surface of the first scour protection hole 310 on which the plurality of tetrapods 30 are seated is that of the first fiber band 311. Since it has an irregular shape along the length direction and the width direction, it is possible to increase the frictional force with respect to the plurality of tetrapods 30, and the plurality of tetrapods 30 can be disposed more densely.

On the other hand, the scour protection ball 300 according to the third embodiment of the present invention, in addition to the first scour protection ball 310, the second scour protection ball 320 installed in the bent portion G1 of the breakwater slope BW It may further include.

FIG. 20 is a view showing a state in which a first scour protective ball and a second scour protective ball constituting the scour protective ball according to the third embodiment of the present invention are installed on a breakwater slope.

As shown in FIG. 20, the second scour protection hole 320 is installed to fill the bent portion G1 of the breakwater slope BW, and the filler injected into the second fiber band 321 made of geosynthetic fibers (M2) may be formed by curing. Accordingly, the first scour protection hole 310 may be installed along the breakwater slope BW while at least one second scour protection hole 320 is installed in a bent portion (G1 of FIG. 20) of the breakwater slope BW. have. At this time, each of the first scour guards 310 may be a mat type scour guard, and the second scour guards 320 may use a bag type scour guard.

As described above, the scour protection ball 300 according to the third embodiment of the present invention is provided by installing the mat type first scour protection ball 310 on the breakwater slope BW and the tetrapod 30 installed on the upper surface, Compared to the conventional construction method using the coated stone 10 and the tripod 20, it is possible to increase the scour prevention effect of the breakwater slope BW and to reduce the cost and time for scour prevention of the breakwater slope BW.

In addition, by using the first scour protection hole 310 installed on the breakwater slope BW and the second scour protection hole 320 installed on the bent portion G1 of the breakwater slope BW, the breakwater slope BW It is possible to flatten the breakwater slope (BW) through a simpler construction process without evening work (earthwork) for the bend (G1), and the cost for preventing scour of the breakwater slope (BW) compared to the conventional construction method using concrete And time savings.

Hereinafter, with reference to FIGS. 21 and 22, a method of constructing a scour protection hole 300 according to a third embodiment of the present invention configured as described above on a breakwater slope BW will be described.

21 is a flow chart illustrating a method for constructing a scour guard according to a third embodiment of the present invention, and FIG. 22 is a view showing an installation of a first scour guard that constitutes a scour guard according to a third embodiment of the present invention It is a drawing shown.

21 and 22 (a), in order to construct the scour protection ball 300 according to the third embodiment of the present invention, first, the breakwater slope (BW) to install the scour protection ball 300 ) After installing the first fibrous unit 311 constituting the first scour protection hole 310 in a state in which the filler (M1) is not injected (S310), the filler inside the first fibrous unit 311 ( M1) can be injected and then cured (S320).

As shown in (a) of Figure 22, the filler (M1) is injected through the first filler inlet (311c) formed in the first fiber band 311 of the first scour protection hole 310, the first scour The first fiber band 311 of the protective hole 310 may expand by a predetermined size by design while injection of the filler M1 is in progress.

Referring again to FIG. 21, after installing the first scour protection ball 310 on the breakwater slope BW (S320), as shown in FIGS. 21 and 22 (b), the first scour protection ball ( A plurality of tetrapods 30 may be installed on the upper surface of 310 at regular intervals (S330).

On the other hand, although not shown, as shown in FIG. 20, when the scour guard 300 according to the third embodiment of the present invention further includes a second scour guard (320), the breakwater slope ( Prior to step S310 of installing the first fiber band 311 along the BW), the second fiber band 321 constituting at least one second scour protective ball 320 in the bent portion G1 of the breakwater slope BW ), The filler (M2) is injected into the interior of the second fiber band 321 and then cured to further include filling the bent portion G1. The process of installing the second scour protective ball 320 constituting the scour protective ball 300 according to the third embodiment of the present invention to the bent portion G1 of the breakwater slope BW is shown in FIGS. 16 (a) and ( Since it is similar to the example shown in b), a detailed description will be omitted.

Hereinafter, with reference to FIGS. 23 to 28, a scour protection and a construction method using the scourer according to a fourth embodiment of the present invention will be described.

23 is a view showing a state in which a pipeline is buried in the ground using a scour protective ball according to a fourth embodiment of the present invention, and FIG. 24 is a fibrous band constituting a scour protective ball according to a fourth embodiment of the present invention It is a diagram schematically showing the structure.

The scour guard 400 according to the fourth embodiment of the present invention is a scour of the first to third embodiments applied to a hydraulic structure installed on a river slope, a coast slope, or a river or coast It is an extension of the application range of the guards (400, 200, 300), and it is buried in the ground (G) and flows fluids such as water and oil inside. It relates to a scour guard installed to prevent scour.

As shown in Figure 23, the scour protection 400 according to the fourth embodiment of the present invention is installed to surround the periphery (upper surface or lower surface) of the pipeline (P) buried in the ground (G), It not only prevents the surrounding scour of the pipeline (P) embedded in the ground (G), but also stably fixes the pipeline (P) and absorbs external shocks and vibrations transmitted to the pipeline (P) to prevent damage to the pipeline (P). It can serve to prevent. In addition, the scour protection 400 according to the fourth embodiment of the present invention, even if the pipeline (P) buried in the ground (G) is damaged by the impact, the leakage of internal fluid due to the damage of the pipeline (P) Can be prevented.

FIG. 23 (a) shows an example in which the scour protection ball 400 wraps the upper surface and both sides of the pipe P, and in FIG. 23 (b), the scour protection ball 400 is the lower portion of the pipe P. An example of wrapping the sides and both sides is shown.

As shown in FIG. 24, the scour protection ball 400 according to the fourth embodiment of the present invention is the first scour protection that is arranged to surround the upper surface or the lower surface of the pipeline P buried in the ground G The ball 410 and a pair of second scour guards 420, which are formed to extend integrally at both ends of the first scour guard ball 410 and are disposed to surround both sides of the conduit P You can.

The first scour guard 410 and the pair of second scour guards 420 are filled with fillers (R1) injected into the first fibrous 411 and the second fibrous 421, respectively, made of geosynthetic fibers. Can be formed by curing. At this time, the first fiber band 411 constituting the first scour protective ball 410 and the second fiber band 421 constituting the second scour protective ball 420 have tensile strength such as polyester, polypropylene, etc. It can be made of high-strength geotextiles with excellent elongation and high water permeability.

In FIGS. 24A and 24B, the shape of the scour protection hole 400 disposed to surround the upper surface of the pipe line P embedded in the ground G is described as an example. As shown in FIG. 24 (a), the second fiber band 421 of the second scour protective hole 420 naturally extends integrally from the first fiber band 411 of the first scour protective hole 410 It may be formed, as shown in Figure 24 (b), the second fibrous guard 420 of the second scour guard 420, the first fibrous guard 410 of the first fibrous guard 411 And polyester, polypropylene, etc., may be integrally connected through a scour prevention film 413 made of high-strength geotextiles having high tensile strength and elongation and high water permeability coefficient.

On the contrary, FIGS. 24 (c) and 24 (d) illustrate the shape of the scour protection ball 400 disposed to surround the lower surface of the pipe line P embedded in the ground G as an example. The first scour guard 410 and the second scour guard 420 illustrated in FIGS. 24C and 24D are substantially the same as the examples illustrated in FIGS. 24A and 24B. .

As described above, since the first fiber band 411 and the second fiber band 421 have excellent tensile strength and elongation, when the filler R1 is injected in a state arranged to surround the pipeline P, the first fiber band Excavation with the outer circumferential surface of the pipe line P as shown in (a) or (b) of FIG. 23 by changing the shape by the elongation (approximately 20-25%) of the (411) and the second fiber band 421 ( Can be in close contact with the ground (G).

Preferably, the filler (R1) injected into the inside of the first fiber band 411 and the second fiber band 421 may use the soil for backfill excavated when excavating (digging) the ground G. . That is, the first scour protection ball 410 and the second scour protection ball 420 constituting the scour protective ball 400 according to the fourth embodiment of the present invention are excavated to purchase a pipeline P. By using the soil of G) as a filler (R1) as it is, there is an advantage of not having to supply a separate filler (R1) from the outside, as well as the need to discharge the excavated soil to the outside.

In addition, the filling of the first fibrous 411 and the second fibrous 421 into the filling agent (R1) of the filling soil (1) by the amount corresponding to the volume of the pipe (P) the first fibrous 411 and Since it has the effect of compacting inside the second fibrous band 421 (higher density), it not only absorbs the shock transmitted from the outside to the pipe line P, but also lowers the permeability coefficient than the surrounding soil by high density. Even when the pipe line P is damaged, there is an advantage that it is possible to prevent the leakage of the internal fluid and the surrounding pollution.

On the other hand, when injecting the filling soil (R1) into the interior of the first fiber band 411 and the second fiber band (421), when necessary, water compaction to inject the water with the backfill soil (Water) flling). As described above, since the first fiber band 411 and the second fiber band 421 have a high water permeability coefficient, it is easy to discharge the water input during water compaction construction, and accordingly, the first fiber band 411 and the second The density of the filling sand for filling the inside of the fibrous stand 421 can be further increased. Thus, the scour protection 400 has an advantage that it can not only have a greater strength by water compaction construction, but also prevent the inflow or outflow of water or fluid from the outside after the water compaction construction.

In addition, the filler (R1) injected into the interior of the first fiber band 411 and the second fiber band 421 is added to the first scour protection hole 410 and the second scour protection hole 420 in addition to the filling soil. Depending on conditions such as required strength and water permeability, concrete and mortar may be added and used.

Hereinafter, with reference to FIGS. 25 to 28, for a construction method of embedding a pipe line (P) in the ground (G) by using the scour protection ball 400 according to the fourth embodiment of the present invention configured as described above I will explain.

25 is a flowchart illustrating an example of a method for constructing a scour guard according to a fourth embodiment of the present invention, and FIG. 26 is a state in which a pipeline is buried in the ground using a scour guard according to a fourth embodiment of the present invention It is a diagram showing an example of.

25 and 26, a process of embedding the pipe line P into the ground G using the scour protection 400 shown in FIGS. 24A and 24B will be described.

25 and 26 (a), in order to construct the scour protection 400 shown in Figures 24 (a) and (b), first, the ground for installing the pipeline (P) ( After excavation (destruction) of G), the pipeline P may be disposed (S410).

And, as shown in Figures 25 and 26 (b), it is possible to install a fibrous constituting the scour protection 400 to surround the pipe (P) disposed in the excavated ground (G) (S420) ). That is, in the state in which the first fibrous 411 constituting the first scour protection ball 410 is disposed on the upper surface of the pipe line P, the second constituting the pair of second scour protection balls 420 The fiber bands 421 may be disposed on both sides of the pipe line P, respectively.

26 (b) shows an example in which the first fiber band 411 and the second fiber band 421 are installed in a state in which the filler R1 is not injected, but if necessary, the first fiber band 411 And the second fiber band 421 may be installed in a state in which a part of the filler (R1) (backfilling soil) is injected.

Referring again to FIG. 25, after the fiber band is installed to surround the pipeline P (S420), as shown in FIGS. 25 and 26 (c), the scour protection 400 is wrapped around the pipeline P The filler (R1) may be cured after the filler is injected into the inside of the fiber band (S430).

As described above, the filler R1 uses the filling soil discharged from the ground G excavated in step S410, and the filler inlet formed in the first fiber band 411 or the second fiber band 421 (FIG. In the example of 26 (c), it is injected into the inside of the first fiber band 411 and the second fiber band 421 through the second filler inlet 412c), and the filling agent R1 for filling backfill is made of It can be cured while being compacted while being injected into the first fiber band 411 and the second fiber band 421.

As shown in (c) of FIG. 26, the first fiber band 411 and the second fiber band while the filler R1 is injected inside the first fiber band 411 and the second fiber band 421 (421) is expanded by a predetermined size by design, and the injected filler (R1) can be fixed to the pipe (P) stably excavated in the process of curing (P).

Thus, the scour protection 400 according to the fourth embodiment of the present invention is conventionally installed in the pipeline (P) after the pipeline (P) is not fixed in the process of filling the soil (soil filling operation) in the pipeline ( It is possible to solve the problem that the connecting portion, the welding portion, etc. of the pipe line P is damaged by moving P).

Referring again to FIG. 25, after the filler R1 injected into the fiber band is cured (S430), as shown in FIGS. 25 and 26 (d), the scour protection 400 is a conduit P ) Can be filled in the soil at the top of the scour guard (400) in a wrapped state (work filling the soil), the pipeline (P) and the scour guard (400) can be buried (S440).

As shown in Figure 26 (c), the scour guard 400 according to the fourth embodiment of the present invention fills the soil in the state surrounding the pipeline (P), so that rain or water flows in from the outside It has the advantage of being able to perform underwater construction work even in situations such as being.

That is, in the prior art, when the rainwater or water flows in from the outside during the process of backfilling the soil after the pipeline P is installed, once the soil backfilling operation is stopped, the rain stops or there is no inflow of water from the outside. After draining the accumulated water in the space, it was necessary to perform the backfilling of the soil again, but the scour guard 400 according to the fourth embodiment of the present invention not only facilitates underwater construction, but also excavates the scour guard 400 In the process of filling, there is an advantage in that the entire construction period can be shortened in that no separate water dispensing work is required since natural water is naturally discharged to the trenching space.

In addition, in the prior art, there was a problem in that soil is discharged in the process of rain or water flowing in from the outside, or in the process of distributing stagnant water in the trench space, but the scour protection 400 according to the fourth embodiment of the present invention Silver has the advantage that it is possible to work underwater, so there is no external leakage of soil.

27 is a flowchart illustrating another example of a method for constructing a scour guard according to a fourth embodiment of the present invention, and FIG. 28 is a state in which a pipeline is buried in the ground using a scour guard according to a fourth embodiment of the present invention It is a figure showing another example.

In FIGS. 27 and 28, a process of embedding the pipe line P into the ground G using the scour protection 400 shown in FIGS. 24C and 24D will be described.

As shown in (a) of FIGS. 27 and 28, in order to construct the scour guard 400 shown in FIGS. 24 (c) and 24 (d), the ground for first installing the pipeline P ( G) can be excavated (demolition) and a fibrous constituting the scour guard 400 (first fibrous 411 and second fibrous 421) can be installed (S510). At this time, as shown in (a) of FIG. 28, a part of the filling sand (R1), which is a filling agent, may be pre-injected into the inside of the first fiber band 411 installed on the ground. And, as shown in Figure 27 and Figure 28 (b), it is possible to place the conduit (P) on the upper surface of the fiber band (more precisely, the upper surface of the first fiber band 411) (S520). .

Then, as shown in (c) of FIGS. 27 and 28, after the scour protection 400 is cured by injecting a filling agent (R1) for filling the inside of the fiber band so as to surround the pipe (P) and hardened ( S530), as shown in Figure 27 and Figure 28 (d), the first fibrous 411 and the second fibrous 421 and the remaining filling and reclaiming soil for conduit (P) and scour protection ( Filling the upper portion of the 400) can fill the pipeline (P) and scour protection 400 (S540).

As shown in (d) of FIG. 28, when the first scour protective ball 410 constituting the scour protective ball 400 is installed to surround the lower surface of the pipeline P, the scour protective ball 400 Since it is possible to prevent the ground (G) settlement due to the self-weight of the pipeline (P), there is an advantage that it can be applied to the soft ground (G).

Meanwhile, in the specification and drawings, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, they are merely used in a general sense to easily describe the technical contents of the present invention and to understand the invention. It is not intended to limit the scope of the invention. It is apparent to those skilled in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

<Explanation of reference numerals for main parts of drawings>
100: scour protection (first embodiment)
110: first scour guard
120: second scour guard
130: scour prevention film
200: scour guard (second embodiment)
210: first scour guard
220: second scour guard
230: Third Scour Guard
240: scour prevention film
300: scour guard (the third embodiment)
310: first scour guard
320: second scour guard
400: scour guard (4th embodiment)
410: first scour guard
420: second scour guard

Claims (4)

In the Scour Protection Form (Scour Protection Form), which is installed to prevent the surrounding scour of the pipeline that is buried in the ground and the fluid flows inside,
A first scour protection hole disposed to surround an upper surface or a lower surface of a pipeline buried in the ground; And
It is formed integrally extending at both ends of the first scour guard, and includes a pair of second scour guards disposed to surround both sides of the pipeline,
The first scour protector and the pair of second scour protectors are formed by curing the filler injected into the fiber band. According to claim 1,
The filler,
A scour guard, characterized in that it uses excavated soil for backfilling when excavating the ground. A method for constructing a scour guard to install a Scour Protection Form in the periphery of the pipe to prevent scour around the pipe that is buried in the ground and flows fluid therein,
Arranging a pipeline after excavating the ground;
Installing a fiber band constituting a scour protective hole to surround the pipeline;
Injecting a filler in the interior of the fibrous so that the scour protection hole surrounds the pipeline and then curing; And
Filling the soil with an upper portion of the scour guard, filling the pipeline and the scour guard,
The scour guard,
A first scour protection hole disposed to surround the upper surface of the pipeline; And
A scour guard construction method comprising a pair of second scour guards formed integrally with both ends of the first scour guard and disposed to surround both sides of the pipeline. A method for constructing a scour guard to install a Scour Protection Form in the periphery of the pipe to prevent scour around the pipe that is buried in the ground and flows fluid therein,
After excavating the ground, installing a fiber band constituting the scour protection;
Arranging a conduit on an upper surface of the fiber band;
Injecting a filler in the interior of the fibrous so that the scour protection hole surrounds the pipeline and then curing; And
And filling the conduit and the scour guard in the upper portion of the scour guard and filling the pipe and the scour guard.
The scour guard,
A first scour protection hole disposed to surround the lower surface of the pipeline; And
A scour guard construction method comprising a pair of second scour guards formed integrally with both ends of the first scour guard and disposed to surround both sides of the pipeline.

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