KR100610391B1 - Barrier Structure having Shock Absorber - Google Patents

Abstract

The present invention provides a buffer structure that can absorb additional rockfall energy to the rockfall protection fence structure, to effectively absorb the rockfall energy when rockfall occurs and collides with the fence structure, thereby providing a high safety against the impact of rockfall The present invention relates to a rockfall protective fence structure and a buffer provided therein for ensuring.

In the present invention, between the end support 1 provided at both ends, the intermediate support 2 provided at predetermined intervals between the end support 1, and between the end support 1 and the intermediate support 2. A rockfall protection fence structure comprising a horizontal wire rope (4) and a longitudinal wire rope (5) to be installed to protect rockfall on the inclined surface, which acts on the intermediate column (2) from the rear of the intermediate column (2) Anchor portion buffer port (10) for absorbing rock energy, end holder buffer 17, which is provided on the side of the end support 1 applied to the end support 1, and the transverse wire rope (4) A rockfall protection fence buffer is provided with a crossover buffer 20, a moving buffer 30, and / or a slip buffer 40 that induces slippage to absorb rockfall energy.

In addition, in the present invention, as a buffer for absorbing the energy due to the tensile force, it consists of two parallel rod-shaped members, the end of the rod-shaped member is provided with a fixed pressing plate 12, the middle of the movable pressing plate 14 A connection fixing member 13; A rod-shaped movable drawing member 15 positioned between the parallel rod-shaped members of the connection fixing member 13 and penetrating the fixed pressing plate 12 to secure an end portion to the movable pressing plate 14; It is installed between the fixed pressing plate 12 and the movable pressing plate 14 is pressed when the movable drawing member 15 is pulled by the tension force to the crushing member 16 to absorb energy by causing elastic deformation, plastic deformation or crushing An energy buffer by tension is provided.

Buffer, rockfall energy, protection, prop

Description

Barrier Structure having Shock Absorber

 1a and 1b is a schematic view of the rockfall protection fence structure according to the present invention, Figure 1a is a side view, Figure 1b is a rear view as viewed from the slope side.

Figure 2a and Figure 2b is a schematic diagram of a structure in which the anchor portion buffer provided in the rockfall protection fence structure according to the invention is connected to the anchor, Figure 2a is one anchor portion buffer in the connecting member installed at the end of the anchor 2b shows a connected state, and FIG. 2b shows a shape in which the anchor portion buffer port shown in FIG. 2a is compressed to exert an energy absorption function.

Figure 2c is a schematic perspective view of the cone-shaped member constituting the crushing member of the anchor buffer buffer provided in the rockfall protection fence structure according to the present invention.

3A to 3D are schematic views showing one embodiment of the cross section buffer opening provided in the rockfall protection fence structure according to the present invention.

4a and 4b are respectively a perspective view showing a configuration in which the moving buffer and the slip buffer provided in the rockfall protection fence structure according to the present invention coupled to the transverse wire rope.

Figures 5a to 5c is a plan view showing a step-by-step mechanism when a rockfall occurs in the rockfall protection fence structure according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: end holder 2: intermediate holder

10: anchor portion buffer port 20: cross section buffer port

30: movement buffer 40: slip buffer

The present invention relates to a rockfall protection fence structure and a buffer used therein, which are installed in a rockfall slope from where rockfall is expected, and specifically, to a rockfall protection fence structure excellent in absorbing rock energy and a buffer used therein. will be.

In general, rockfall protection fence structures are installed to prevent the falling rock on the roadside or sidewalk slopes from entering the roadway or sidewalks.

6 is a schematic front view of a conventional rockfall protection fence structure. The conventional rockfall protection fence structure, the wire rope 300 is disposed across the end support 100 and the intermediate support 200, and the support (100, 200), the bottom of which is strongly fixed to the ground or concrete foundation ) And a lattice mesh 400 installed between the pillars. The wire rope 300 penetrates the intermediate column 200 and is fixed to the end column 100.

By the way, in the case of the conventional rockfall protection fence structure as described above, when a rockfall phenomenon occurs, rockfall strikes the wire rope 300, the energy of the rockfall is the wire rope 300 and the mesh 400, and the support ( 100, 200) as it is delivered to. In short, the energy of the rockfall is supported by the wire rope 300 itself or only by the rigidity of the strut. Therefore, if the rockfall energy is large, the wire rope 300 is eventually broken or damaged, and the prop is also broken and broken. Breaking the wire rope 300 means not functioning as a fence.

In addition, in the conventional structure, since the lower end of the support is strongly fixed to the ground or the concrete foundation, when the rockfall strikes the support, the support may be bent or bent, but the rocking energy may not be sufficiently absorbed.

The present invention was developed in order to overcome the limitations of the conventional rockfall protection fence structure as described above, the object of the present invention, by providing a buffer structure that can absorb additional rockfall energy to the rockfall protection fence structure, rockfall The present invention provides a rockfall protection fence structure and a buffer provided therein to effectively absorb rockfall energy when colliding with the fence structure, thereby ensuring a high safety against the impact of rockfall.

Specifically, the present invention aims to have a structure capable of absorbing rockfall energy even in the middle column itself, and further aims to provide a rockfall energy buffer function to the end column.

In addition, in the present invention, when the wire rope is pulled by the rockfall, it is an object to configure the wire rope itself to have a rockfall energy absorption function.

In order to achieve the above object, in the present invention, the end support is provided at both ends, the intermediate support is provided at predetermined intervals between the end support, the longitudinal wire rope provided between the end support and the intermediate support and A rockfall protection fence structure comprising a transverse wire rope to protect rockfall on an inclined surface, wherein the lower portion of the middle column is a hinge portion rotatable to absorb rockfall energy by rotationally displacing when rockfall strikes the fence structure. Configured; A support wire rope is installed on the upper portion of the intermediate column to support the intermediate column not to rotate forward; At the opposite end of the support wire rope is anchor anchor buffer for absorbing rock energy by elastic deformation, plastic deformation, or crushing as the support rope is pulled by the impact of falling rock is provided. A rockfall protective fence structure is provided.

In the rockfall protection fence structure of the present invention described above, the anchor portion buffer port is composed of two side by side rod-shaped member, the end of the rod-shaped member is provided with a fixed pressing plate and the middle of the connecting fixing member having a movable pressing plate in the middle Wow; A rod-shaped movable drawing member positioned between the parallel rod-shaped members of the connection fixing member and penetrating the fixed pressing plate to secure an end portion to the movable pressing plate; It is installed between the fixed pressure plate and the movable pressure plate may be composed of a crushing member that absorbs energy by causing elastic deformation, plastic deformation or crushing by pressure. In addition, as a specific embodiment, the shredding member may be configured by arranging one or more in a form in which two cone-shaped members face each other in a pair.

In addition, the present invention includes an end brace provided at both ends, an intermediate circumference provided at predetermined intervals between the end brace, a longitudinal wire rope and a lateral wire rope provided between the end brace and the intermediate brace. A rockfall protection fence structure which protects rockfalls on the inclined surface, and at the intersection of the longitudinal and transverse wire ropes, friction caused by slippage is induced by inducing slip of the longitudinal and transverse wire ropes when the impact force caused by the falling rocks is applied. A rockfall protection fence structure is provided, which is provided with an intersection buffer for absorbing rockfall energy by resistance.

In addition, the present invention includes an end brace provided at both ends, an intermediate circumference provided at predetermined intervals between the end brace, a longitudinal wire rope and a lateral wire rope provided between the end brace and the intermediate brace. A rockfall protection fence structure which is configured to protect rockfall on the inclined surface, and on the left and right sides of the middle column, a rockfall protection fence structure is provided, each of which has a moving buffer port for absorbing rockfall energy by slipping of a wire rope in a transverse direction. Is provided.

As a specific embodiment of the present invention as described above, the moving buffer port is composed of a front and rear coupling plate coupled to each other in front and rear of the transverse wire rope, and a fastening means for integrally coupling the front and rear coupling plate; A curved groove is formed in the front and rear coupling plates so that the transverse wire rope is positioned in a curved form when the moving buffer hole is coupled with the transverse wire rope. A rockfall protective fence structure is provided, characterized in that slip resistance is caused by a curved arrangement when pulled by a rockfall impact.

In addition, the present invention includes an end brace provided at both ends, an intermediate circumference provided at predetermined intervals between the end brace, a longitudinal wire rope and a lateral wire rope provided between the end brace and the intermediate brace. A rockfall protection fence structure configured to protect rockfall on an inclined surface, wherein the intermediate column is provided with a rockfall protection fence structure, wherein a slip buffer for absorbing rockfall energy is provided by slip of a transverse wire rope. .

In a specific embodiment of the present invention, the slip buffer is composed of a front and rear coupling plate coupled to each other before and after the transverse wire rope, and the fastening means for fastening the front and rear coupling plate integrally with the intermediate column. And; The slip buffer has a curved groove formed in the front and rear coupling plates so that the transverse wire rope is positioned in a curved form when it is engaged with the transverse wire rope. It is configured to cause slip resistance due to the bent arrangement when pulled by the impact of the rockfall.

In addition, the present invention includes an end brace provided at both ends, an intermediate circumference provided at predetermined intervals between the end brace, a longitudinal wire rope and a lateral wire rope provided between the end brace and the intermediate brace. And a rockfall protection fence structure that protects rockfall on an inclined surface, and absorbs rockfall energy by being elastically deformed, plastically deformed, or crushed on the side of the end circumference as the support rope is pulled by striking the rock. A rockfall barrier structure is provided, characterized in that an end circumferential buffer is provided.

In a specific embodiment of the present invention as described above, the end holding buffer, the end of the rod-shaped connecting member penetrating the side of the end holder is fixed to the outermost elastic deformation by the pressure when the connecting member is pulled by the impact of falling rock, Plastic deformation or crushing member; The shredding member is configured by arranging two or more cone-shaped members in pairs to face each other.

In addition, in the present invention, as a buffer for absorbing the energy due to the tensile force generated by the impact, it consists of two parallel rod-shaped members, the end of the rod-shaped member is provided with a fixed pressure plate, in the middle of the movable pressure plate A connection fixing member which is provided; A rod-shaped movable drawing member positioned between the parallel rod-shaped members of the connection fixing member and penetrating the fixed pressing plate to secure an end portion to the movable pressing plate; Impact energy due to the tensile force is installed between the fixed pressure plate and the movable pressure plate is composed of a crushing member that is pressed when the movable drawing member is pulled by the tensile force to cause elastic deformation, plastic deformation or crushing to absorb impact energy A buffer opening is provided.

In the above-mentioned buffer port, the crushing member, it is preferable that at least one of the two cone-shaped member is arranged in a form facing each other.

The above-described buffer of the present invention is suitable for use in the above-mentioned rockfall protection fence structure, but its use is not necessarily limited to the above rockfall protection fence structure, it is used where it is necessary to absorb energy generated by the tensile force. This is possible.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1A and 1B are schematic views of a rockfall protection fence structure according to the present invention, FIG. 1A is a side view, and FIG. 1B is a rear view viewed from an inclined side.

The rockfall protection fence structure according to the present invention, the end is fixed to the ground or concrete foundation end support (1) is installed at both ends of the fence structure and the intermediate support is installed at a predetermined interval between the end support (1) 2), it comprises a transverse (horizontal) wire rope 4 and a longitudinal (vertical direction) wire rope 5 provided between the end holder 1 and the intermediate support (2). As shown in FIG. 1B, a grid net 6 is further installed between the struts 2, 3. In FIG. 1B, only a part of the grid 6 is shown for convenience.

First, referring to Figure 1a in detail the installation structure of the intermediate column (2), the intermediate column (2) is a holding plate (71) and a holding plate (such as anchor bolts) on the support base (7) made of ground or concrete ( 72), unlike the conventional case, in the present invention, the hinge portion 8 is formed at the lower end of the intermediate column (2). That is, when the rockfall hits the fence structure, the lower end of the intermediate column 2 is configured as a hinge portion 8 that can rotate in the present invention so that the intermediate column 2 can rotate and absorb the rock energy.

In order to support the intermediate support 2 provided with the hinge portion 8 so as to be rotated in this way, that is, in order not to rotate in the opposite direction to the front, that is, the slope, the support for the support at a predetermined position on the upper portion of the intermediate support 2. A wire rope 9 is installed, and an anchor buffer 10 is installed at an opposite end of the support wire rope 9, and the anchor buffer 10 is fixed to the ground. Is connected to (50). On the other hand, in order to prevent the intermediate column 2 from rotating arbitrarily in the backward direction, that is, in the inclined direction, an auxiliary column 3 is provided at the front lower portion of the intermediate column 2.

The anchor portion buffer 10, when the rockfall strikes the fence structure to apply a rotational force to the intermediate support (2), when the support wire rope (9) is pulled, thereby elastic deformation, plastic deformation, Or by being crushed to absorb rock energy.

Specifically, Figures 2a and 2b is shown an embodiment of the structure in which the anchor portion buffer 10 is connected to the anchor 30, Figure 2a is a connecting member 31 installed at the end of the anchor 30 One anchor portion buffer 10 is shown in the connected state, Figure 2b shows the shape of the anchor portion buffer 10 shown in Figure 2a is compressed to exert an energy absorption function.

In the present invention, the anchor portion buffer port 10 is composed of two parallel rod-shaped members, the end of the rod-shaped member is provided with a fixed pressure plate 12, the middle is provided with a movable pressure plate 14 A rod-shaped movable drawing member positioned between a connection fixing member 13 and a parallel rod-shaped member of the connection fixing member 13 and penetrating the fixed pressure plate 12 to have an end fixed to the movable pressure plate 14. 15) and a crushing member 16 provided between the fixed pressing plate 12 and the movable pressing plate 14 to absorb energy by causing elastic deformation, plastic deformation or crushing by pressing. In FIG. 2C, a schematic perspective view of the cone-shaped member 11 constituting the crushing member 16 is illustrated. In the center of the cone-shaped member 11, a through hole through which the movable drawing member 15 penetrates is formed. have. In the embodiment shown in the figure, the shredding member 16 is configured by a plurality of conical members 11, such as shown in Figure 2c is arranged in plurality in a form facing each other. In the embodiment of the figure, three pairs of cone-shaped members 11 are arranged to face each other, but the number of pairs of cone-shaped members is not limited thereto. The other end of the movable drawing member 15 is connected to the support wire rope 9, and the connection fixing member 13 is connected to the anchor 50 by the connecting member 31.

 As will be described later, when the impact force is applied so that the intermediate column 2 rotates forward by the falling rock, the support wire rope 9 for supporting the intermediate column 2 is pulled out, and thus the movable withdrawal is performed. The member 15 is pulled out. When the movable drawing member 15 is pulled, the movable pressing plate 14 fixed to the end thereof is also pulled to press the crushing member 16. The shredding member 16, which has a shape in which the cone-shaped members 11 face each other, is initially elastically deformed by being pressed against each other and flattened as the movable pressure plate 14 presses, thereby leaving the elastic deformation limit. When a greater pressing force of a degree is applied, the cone-shaped member 11 is pressed further and plastically deformed, and when a larger pressing force is applied, the cone-shaped member 11 is finally crushed. When the movable drawing member 15 is pulled in this way, the energy due to the pulling of the movable drawing member 15 is absorbed by the elastic deformation, the plastic deformation, or the crushing of the crushing member 16. Therefore, the anchor part buffer port 10 absorbs the rockfall energy by the energy absorption action of the crushing member 16. 2d illustrates an embodiment in which two anchor portion buffering holes 10 are connected to one anchor 50.

Meanwhile, as shown in FIG. 1B, the end holder 1 is also provided with an end holder buffer 17. Specifically, a rod-shaped connecting material 19 is installed at the end of the transverse wire rope 4 disposed across the intermediate column 2 to penetrate the end column 1, and penetrates the end column 1. The end holding buffer 17 is provided at the end of the connecting member 19 protruding. Similar to the anchor buffer 10 described above, the end holding buffer 17, a plurality of cone-shaped members having a through-hole formed in the center of the pair of pairs facing each other are connected in plurality It consists of one shredding member 18. An end of the connecting member 19 is fixed to the outermost part of the crushing member 18 through the crushing member 18. The end holding buffer 17 absorbs energy by elastic deformation, plastic deformation or crushing of the crushing member 18 when the transverse wire rope 4 is pulled by the impact of falling rocks.

One of the other features of the fence structure according to the invention is at the intersection of the transverse wire rope 4 and the longitudinal wire rope 5, as an alternative means of absorbing the falling rock energy by slipping, the intersection buffer opening. (Or cross buffers) 20.

The intersection buffer 20 is installed at the intersections of the longitudinal and transverse wire ropes 5 and 4, and when the impact force caused by the falling rocks acts, the longitudinal and transverse wire ropes 5 and 4 By inducing the slip, it serves to absorb rock energy by the frictional resistance according to the slip. 3A to 3D show the configuration of one embodiment of the crossover buffer 20, FIGS. 3A and 3B are exploded perspective views and combined perspective views of the upright crossover buffer, respectively, and FIGS. 3C and 3D respectively. 4 is an exploded perspective view and a combined perspective view of another intersection buffer embodiment.

3A and 3B, the intersection buffer opening 20 shown in Utility Model Registration No. 313108, which is already filed and registered by the present applicant, is provided in one of the longitudinal and transverse wire ropes 5 and 4 in one direction. A first base plate that supports one side of the wire rope and engages with the one-way wire rope, and is integrally coupled in a direction perpendicular to the first base plate, and supports one side of the other wire rope on an upper or lower surface thereof; And a second base plate coupled to the other direction wire rope. Each of the first base plate and the second base plate is formed with a plurality of pairs of through holes, and a ring member, that is, a fastening member having a 'Ｕ' shape, in which a longitudinal wire rope and a transverse wire rope are placed inside. After the log end passes through the through-holes of the first and second base plates, the log end is fastened by a fastening means such as a nut.

On the other hand, the intersection buffer opening 20 shown in Figures 3c and 3d is disclosed in Utility Model Registration No. 318201 already filed and registered by the present applicant, the longitudinal, transverse wire rope (5, 4) of The base plate is sandwiched between the longitudinal and transverse wire ropes 5 and 4 at the intersection and formed in a direction in which a pair of through holes intersect with each other, and has a 'Ｕ' shape. A pair of first fastening members and a pair of second fastening members, which pass through each of the through-holes of the base plate in opposite directions from both sides and are fastened with nuts by sandwiching the rope 4 and the longitudinal wire rope 5 therebetween. It consists of a fastening member.

More specific configuration of the cross section buffer port 20 is disclosed in detail in Utility Model Registration Nos. 318201 and 313108 mentioned above, and a repeated description thereof will be omitted.

One of the other features of the fence structure according to the present invention, the left and right sides of the intermediate support (2) is provided with a moving buffer port 30 for absorbing rock energy by the slip of the transverse wire rope 4, respectively, The support 2 is also provided with a slip buffer 40 for absorbing rock energy by the slip of the transverse wire rope 4.

4A shows a combined perspective view showing the configuration in which the movement buffer 30 engages with the transverse wire rope 4. As shown in Figure 4a, the movement buffer 30 is the front and rear coupling plate 31, 32 coupled to each other before and after the transverse wire rope 4, and the front and rear coupling plate 31, 32 ) Is composed of a fastening means (34) consisting of a bolt and a nut for fastening integrally). By the way, the groove 33 of the curved form is formed in the front and rear coupling plates 31 and 32 where the transverse wire rope 4 is located. That is, when the movement buffer port 30 is coupled to the transverse wire rope 4, the transverse wire rope 4 is formed in the curved groove 33 in the movement buffer port 30. It is arranged in a curved form. Meanwhile, as shown in FIG. 1B, the movement buffer port 30 is disposed at a predetermined distance near both sides of the intermediate column 2, when the transverse wire rope 4 is pulled by the rockfall as described later. In addition, one side of the shock absorber 30 is fastened to the side of the intermediate column 2 while being fastened to the transverse wire rope (4), primarily resisting the transverse wire rope (4) is pulled by the rockfall Done.

Subsequently, when the lateral wire rope 4 is pulled, the lateral wire rope 4 is slipped at the movement buffer port 30. In the present invention, the lateral wire rope 4 is the movement buffer port 30. Since it is arranged in a curved shape, when the falling rock hits the transverse wire rope 4 and the transverse wire rope 4 slips, the slip resistance becomes large, so that more falling rock energy can be absorbed. Will be.

4b shows the configuration of the slip buffer 40, the slip buffer 40 is installed in the intermediate support (2) is also similar to the above, the front and rear coupling to couple the transverse wire rope 4 in front and rear Plates 41 and 42 are provided, and curved grooves 43 are formed in the transverse wire ropes 4 in the slip buffer 21 as well. The front and rear coupling plates 41 and 42 of the slip buffer are coupled to the intermediate column 2 by the fastening means 44.

By the above configuration, when the transverse wire rope 4 is located in the slip buffer 40, it is arranged in a bent shape in accordance with the shape of the groove 43. Therefore, when the transverse wire rope 4 slips in the slip buffer 40 by the falling rock, as in the case of the moving buffer port 30, the slip resistance is increased due to the curved shape to reduce the rock energy. Will be absorbed.

The features of the present invention described above may be provided in the rockfall protection fence structure separately or in combination with each other, below, the rockfall protection fence structure having all the above features will be described with respect to specific rockfall energy absorption mechanism as an example.

5A to 5C are plan views illustrating step-by-step mechanisms when a rockfall phenomenon occurs in a rockfall protection fence structure having all the features of the present invention described above.

In the embodiment of Figs. 5A to 5C, although each support is provided with two support wire ropes 9 and anchor buffer holes 10 on both sides, the support wire ropes 9 and anchors are supported. Only one secondary buffer 10 may be provided for each support, and two or more supporters may be provided for each support.

As shown in Figs. 5A and 5B, when the rockfall 60 falls on the inclined surface and collides with the protection wall, at the moment when the rockfall collides, the transverse wire rope 4 at the position where the rockfall collided is pushed outward. It is pulled, and the slip of the transverse wire rope (4) and the longitudinal wire rope (5) occurs in the cross section buffer opening 20 to absorb the falling rock energy by the slip phenomenon.

At the same time, as the transverse wire rope 4 is pulled, the slip buffer 40 provided in the intermediate column 2 also absorbs the falling rock energy due to the slip phenomenon of the transverse wire rope 4. As described above, since the groove 43 in the slip buffer 40 has a curved shape, when the lateral wire rope 4 slips in the slip buffer 40, the groove 43 is curved. Slip resistance is increased to absorb rock energy.

On the other hand, due to the impact of the rockfall, the impact force to rotate in the opposite direction of the inclined surface, that is, forward in the intermediate support (2) is generated, thereby pulling the support wire rope (9), and eventually connected to the rear Deformation is caused in the anchor portion buffer opening (10). That is, when the support wire rope 9 is pulled, the movable drawing member 15 is also pulled, and accordingly, the movable pressing plate 14 fixed at the end thereof is pulled to pressurize the crushing member 16. do. The cone-shaped member 11 facing each other is elastically deformed to be flat due to the pressing force, and if it is continuously drawn with a larger force, the cone-shaped member 11 is further deformed to cause plastic deformation, and eventually cone-shaped. The member 11 of is crushed. The rocking energy is absorbed by the buffering action of the anchor buffer 10.

On the other hand, in addition to the rock energy absorbing effect by the anchor portion buffer port 10, the cross-section buffer port 20, and the slip buffer 40 as described above, the end column buffer block provided in the end column 1 ( Rockfall energy absorption by 17) also occurs at the same time. That is, when the transverse wire rope 4 is pulled by the impact of falling rocks, the crushing member 18 provided in the end holding buffer 17 is elastically deformed and plasticized, as in the case of the anchor buffer 10. Deformation or crushing will absorb rock energy.

On the other hand, if the rockfall continues to move forward, as shown in Figure 5c the movement buffer 30 is further moved in the direction of the intermediate column (2) to collide with the side of the intermediate column (2) no longer move. . In this state, when the transverse wire rope 4 is further pulled, the transverse wire rope 4 slips in the movement buffer port 30. As described above, the transverse wire rope 4 is moved and buffered. Since it is arranged in a curved form in the sphere 30, when the transverse wire rope 4 slips in the moving buffer port 30, additional rock energy is absorbed by the large slip resistance generated by the bending arrangement. Effect occurs. Of course, the effects of rockfall energy absorption by the anchor portion buffer 10, the end holding buffer 17, the cross section buffer 20, and the slip buffer 40 are also continued. The crushing members 16 and 18 of the anchor buffer 10 and the end holding buffer 17 may be crushed in the state shown in Figure 5b through the selection of a suitable material, and in some cases Only the elastic deformation or plastic deformation occurs in the state shown in 5b, and may be designed to be crushed after the state shown in FIG. 5c.

 As described above, in the rockfall protection fence structure according to the present invention, the lower end of the intermediate column 2 is constituted by the hinge portion 8. In the conventional case, since the intermediate pillar is fixed to the ground or the foundation of the ground, the intermediate pillar itself is not only deformed and damaged when the rockfall strikes, but the effect of absorbing the falling rock energy is low, but in the present invention, the rockfall hits the fence structure. At this time, the intermediate column 2 is rotationally displaced to absorb the rockfall energy, as well as to reduce the possibility of damage to the intermediate column.

In particular, in the case where the intermediate column is strongly fixed to the foundation as in the prior art, since the end portion of the intermediate pillar is embedded in the foundation, when the intermediate pillar is damaged by the impact of falling rocks and needs to be replaced, Even the foundation has a problem that needs to be replaced at the same time. However, in the present invention, since the intermediate column 2 is connected to the ground or the foundation through the hinge portion 8, when the intermediate column 2 is damaged, the hinge portion 8 is dismantled so that only the intermediate column 2 is removed from the base. Since it can be separated and replaced, there is an advantage that the replacement of the damaged intermediate column (2) can be easily made at low cost.

 In addition, the back of the support (1, 2) is provided with a support wire rope for supporting the support 9 and the anchor portion buffer port 10 to support the support, by the buffering action of the anchor portion buffer opening (10) The absorption effect of considerable rock energy will be exerted.

The rockfall protection fence structure of the present invention, the end holding buffer 17 may be provided on the side of the end holding (1), if such an end holding buffer 17 is installed, due to the impact of the falling rock When the transverse wire rope 4 is pulled, the effect of effectively absorbing rockfall energy by elastic deformation, plastic deformation or crushing of the crushing member 18 provided in the end holding buffer 17 is exerted.

Meanwhile, the rockfall protection fence structure according to the present invention may be provided with an intersection buffer opening 20, and the intersection buffer opening 20 is installed at the intersection of the longitudinal and horizontal wire ropes 5 and 4. In this case, when the impact force caused by the falling rock acts, the cross section buffer port 20 induces slip of the longitudinal and horizontal wire ropes 5 and 4, thereby absorbing the falling rock energy by frictional resistance according to the slip. Will be exercised.

In the fence structure according to the present invention, the intermediate buffer (2) on the left and right sides may be provided with a moving buffer opening 30, the intermediate support (2) can be installed a slip buffer opening 40, the moving buffer opening 30 and Since the slip buffer 40 is configured so that the transverse wire rope 4 is bent inside thereof, the slip buffer 40 increases the slip resistance when the transverse wire rope 4 is pulled and slipped due to the impact of falling rocks. By doing so, the effect of absorbing rock energy is exerted.

The rockfall protection fence structure according to the present invention is to exhibit an effective rockfall energy absorption effect by the respective features described above, it is possible to ensure a high safety against rockfall.

The rockfall protection fence structure according to the present invention may be provided with the features described above individually, each may be provided with a combination of some features, or may be provided with all.

Claims (17)

An end column 1 provided at both ends, an intermediate column 2 provided at predetermined intervals between the end column 1, and a transverse direction provided between the end column 1 and the intermediate column 2; A rockfall protection fence structure comprising a wire rope 4 and a longitudinal wire rope 5 to protect rockfall on an inclined surface, The lower end of the intermediate column (2) is composed of a hinge portion (8) rotatable to absorb the rock energy by rotating displacement when rockfall strikes the fence structure; A support wire rope 9 for supporting the intermediate column 2 does not rotate forward is installed on the upper portion of the intermediate column 2; At the opposite end of the support wire rope (9), the anchor buffer for absorbing rock energy by elastic deformation, plastic deformation, or crushing as the support wire rope (9) is pulled by the impact of falling rocks ( 10) is installed,  The anchor portion buffer opening 10 is formed of two side by side rod-shaped member, the end of the rod-shaped member is provided with a fixed pressing plate 12, the middle of the connection fixing member having a movable pressing plate 14 ( 13); A rod-shaped movable drawing member 15 positioned between the parallel rod-shaped members of the connection fixing member 13 and penetrating the fixed pressing plate 12 to secure an end portion to the movable pressing plate 14; The rockfall protection fence structure, characterized in that composed of a crushing member 16 is installed between the fixed pressing plate 12 and the movable pressing plate 14 to absorb energy by causing elastic deformation, plastic deformation or crushing by pressure. The method of claim 1, Rockfall protection fence structure, characterized in that the left and right sides of the intermediate support (2) is provided with a moving buffer port (30) for absorbing rockfall energy by the slip of the transverse wire rope (4), respectively. The method according to claim 1 or 2, The intermediate support (2) is rockfall protection fence structure, characterized in that the slip buffer (40) for absorbing rock energy by the slip of the transverse wire rope (4) is installed. The method according to claim 1 or 2, On the side surface of the end support 1, an end support buffer 17 is installed to absorb rock energy by elastic deformation, plastic deformation, or crushing as the support rope 9 is pulled by the impact of the falling rock. Rockfall protection fence structure characterized in that it is. delete delete The method of claim 3, On the side of the end support 1, an end support buffer 17 for absorbing rock energy by elastic deformation, plastic deformation, or crushing as the support wire rope 9 is pulled by the impact of the falling rock is further included. Rockfall protection fence structure characterized in that it is installed. delete delete delete The method according to claim 1 or 2, The shredding member (16) is a rockfall protection fence structure characterized in that the conical member (11) is formed in a pair of one or more arranged in a form facing each other. The method of claim 2, The movement buffer port 30 is fastened to integrally fasten the front and rear coupling plates 31 and 32 and the front and rear coupling plates 31 and 32 which are coupled to each other before and after the transverse wire rope 4. Means 34; When the moving buffer port 30 is coupled to the transverse wire rope 4, the transverse wire rope 4 is bent inside the front and rear coupling plates 31 and 32 so as to be positioned in a curved shape. Formed groove (33) is a rockfall protection fence structure characterized in that the slip resistance is generated by the curved arrangement when the transverse wire rope (4) is pulled by the impact of the rockfall. The method of claim 3, The slip buffer 40 is formed between the front and rear coupling plates 41 and 42 coupled to each other in front and rear of the lateral wire rope 4, and the front and rear coupling plates 41 and 42 as intermediate supports 2. It consists of a fastening means 44 for fastening integrally with; The slip buffer 40 is bent inside the front and rear coupling plates 41 and 42 so that the transverse wire rope 4 is positioned in a curved form when it is coupled with the transverse wire rope 4. And a groove 43 is formed so that the slip resistance is generated by the curved arrangement when the transverse wire rope 4 is pulled by the impact of the rockfall. The method of claim 4, wherein The end holding buffer 17 is secured by the pressure when the end of the rod-like connecting member 19 penetrating the side of the end holding member 1 is fixed to the outermost part and the connecting member 19 is pulled by the impact of falling rocks. An elastic deformation, plastic deformation, or crushed shredding member 18; The shredding member (18) is a rockfall protection fence structure characterized in that the conical member (11) is formed in a pair of one or more arranged in a form facing each other. The method according to claim 1 or 2, At the intersection of the longitudinal and transverse wire ropes 5 and 4, when the impact force of the falling rock acts, inducing slip of the longitudinal and transverse wire ropes 5 and 4 causes falling energy by frictional resistance due to slip. Rockfall protection fence structure, characterized in that provided with a cross section buffer opening 20 for absorbing. delete delete

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