KR20190090188A - Tunnel type rockfall protection structure having variable pole part for shock absorbing - Google Patents

Abstract

The present invention relates to a tunnel-type rockfall protection facility having an impact-absorbing variable pole unit. An objective of the present invention is to provide a tunnel-type rockfall protection facility which firstly absorbs collision energy with falling rocks by installing a wire mesh supported by a lateral elastic wire rope on a frame including a plurality of curved main poles and lateral poles when rocks fall on a slope around a road or the like, and secondly absorbs collision energy while tilting to a prescribed angle when colliding with falling rocks by installing a wire mesh supported by variable poles supported on an elastic wire rope to be installed on an end of each curved main pole, and a longitudinal wire rope cross-bound to a lateral elastic wire rope connecting the variable poles. The tunnel-type rockfall protection facility having an impact-absorbing variable pole unit comprises: a foundation pile unit (1) buried in the ground; a plurality of curved main poles (2) installed on an upper end of the foundation pile unit at regular intervals; a plurality of lateral poles (3) laterally reinforcing a gap between the curved main poles; a first wire mesh (4) to block a space formed by the curved main poles and the lateral poles; a variable pole unit (5) installed on each end of the curved main poles; and a second wire mesh unit (6) to block a space between the variable pole units.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tunnel type rockfall protection structure having variable-

More particularly, the present invention relates to a tunnel-type rockfall protection facility having a shock-absorbing variable strut, and more particularly, to a tunnel-type rockfall protection facility having a shock absorbing variable strut, The present invention relates to a rockfall protection facility configured to support as many rockfall as possible while preventing damage, thereby preventing a safety accident.

In Korea, which has a lot of mountainous terrain, there are many cases where the road is constructed by cutting mountains or drilling through tunnels. In this case, rocks sloped around the roads are subject to vibrations caused by automobiles in operation, vibration caused by earthquakes, Or fallen due to shrinkage and expansion caused by the root action of the plant may fall on the road, leaving the roads very vulnerable to safety.

In order to prevent such rockfall, various kinds of anti-rocking means are installed on the rock walls of the slopes around the roads, and a preventive measure is provided. Typically, there is a rockfall protection facility such as a rockfall prevention network. The rockfall prevention network is installed in various forms such as non-pocket type or pocket type. If you look at the basic construction structure roughly, cover the construction site needed to prevent rockfall by covering the mesh (eg PVC coated wire mesh) A plurality of main anchor bolts are installed along the transverse direction, and then the upper end of the longitudinal wire rope is firmly fixed to the lower portion, and a plurality of transverse wire ropes arranged at regular intervals are vertically arranged The wire net is supported by a plurality of longitudinal and transverse wire ropes to prevent falling, or the rocks are prevented from falling on the road Falling.

As another rockfall protection facility, after concrete foundation work is done in the ground of the roadside, a large number of steel piles are directly put into the ground at a certain interval and then poured into the concrete, or after the pouring, There are fences (fences) which are installed at regular intervals and installed in a space between installed pillars by using wire rope and wire mesh to prevent falling rocks on the slopes from spilling on the roads.

However, among the above-mentioned conventional rockfall protection facilities, a rockfall protection facility using a pillar and a wire rope can not bear the load applied to the pillar installed vertically when the load is transmitted to the wire net, the wire rope and the pillar. There is a problem in that the installation structure of the support is deformed and tilted toward the road so that it is deformed to interfere with the normal operation of the vehicle traveling on the road.

In addition, in the case of a vertical struc- ture installed in a vertical direction, even if the struc- ture supports the struc- ture of the struc- ture, even if the struc- ture does not have sufficient height or area or area to support the struc- ture, There are structural drawbacks to this.

In addition, when the foundation of the concrete foundation is installed, it is difficult to repair it because it is necessary to dismantle the concrete casting part during the repair work.

Korean Registered Patent Publication No. 10-1506327 (Feb. Korean Unexamined Patent Publication No. 10-2006-0135582 (December 29, 2006) Korean Patent Registration No. 10-1094247 (2011.12.08.) Korean Patent Registration No. 10-0544975 (Jan. 13, 2006)

In order to solve the above-mentioned problems, it is an object of the present invention to provide a wire net which is pro- vided by a transverse carbon forming wire on a skeleton formed of a plurality of curved main grooves and transverse grooves at the time of a fall in a slope near a road, And a plurality of longitudinal strands each of which is pro- vided with a longitudinal wire cross-linked with a transversely carbon-form-formed wire rope connecting between the variable struts and the variable struts supported by the carbon-formed wire rope at each curvature- And to absorb the collision energy secondarily while being inclined at a predetermined angle in the event of collision with the rockfall.

It is another object of the present invention to provide a vehicle equipped with a multi-turn prevention means for restricting a maximum inclination of a variable post located at an upper portion in a collision with a rockfall to maintain a certain angle so that a rockfall flowing down from an inclined road does not fall directly on the road, And to provide a tunnel-type rockfall protection facility configured to fall off.

It is still another object of the present invention to provide a rockfall protection facility capable of performing maintenance without dismantling a concrete foundation paved with concrete at the time of repair work by providing a structure in which a curvature- have.

According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device, the method comprising: A plurality of curvilinear type main teeth arranged at regular intervals on an upper part of a base support; A plurality of transverse supports for reinforcing the curved main main body in the transverse direction; A first wire mesh part for blocking a space part formed by the curved main bearing and the lateral bearing; A variable ground circumference portion provided at each of the curvilinear isosceles end portions; And a second wire mesh part for blocking a space between the variable ground and the variable ground main part.

According to a preferred embodiment of the present invention, the foundation support includes a plurality of steel foundation posts embedded in the ground in accordance with a curvilinear well-known installation interval, the periphery of which is reinforced by being poured into concrete, A retaining wall pierced with reinforced concrete so as to connect the protruded foundation posts to the ground; And an L-shaped anchor bolt welded to the reinforcing bars laid at the respective foundation post positions at the time of constructing the retaining wall and partially protruding to the upper part of the retaining wall.

In a preferred embodiment of the present invention, the curved main bearing is made of iron, and a base plate is fastened to the L-shaped anchor bolt protruding from the retaining wall of the base supporting part. A plurality of holes may be arranged and a vertical section may be formed from a portion where the base plate is formed to one section and a remaining section may be constituted by a curved portion that protrudes and extends while forming a curvature toward the road direction.

In a preferred embodiment, the transverse struts are steel members that are fastened to support adjacent curvilinear main grooves so as to be reinforced in the transverse direction, and a plurality of the transverse struts may be arranged at regular intervals in the vertical direction.

In a preferred embodiment, the first wire mesh part comprises: a wire net blocking a space formed by the curved main feeder and the transverse feeder; And a first bullet forming wire rope installed transversely to the curved main bulge main body and installed in a lateral direction so as to elastically support the lower portion of the wire net,

Wherein the first shrink-molded wire rope is arranged in a plurality of stages at regular intervals in the vertical direction and has at least one or more bidirectional impact absorbing portions connected between the unit wire ropes, and the one- A one-way shock absorber can be constructed.

In a preferred embodiment, the variable strut portion is provided at an upper end of an end portion of the curvilinear shaped tab portion, and includes a box-shaped case with an open upper portion; An upper support having a lower turning point axially coupled to the anti-detachment portion and formed with a first anti-reverse protrusion protruding from a lower portion of both side holes for shaft coupling; And a second bullet-forming wire rope connected to the upper strut and the curvilinear prong blank to elastically support the upper strut when tilted.

In a preferred embodiment of the present invention, the non-conductive portion has a structure in which the axially coupled upper strut is inclined forward at an angle, the front portion has a configuration in which the upper partial section is inclined at a predetermined angle toward the front, And may have a structure inclined at a predetermined angle to the rear side.

In a preferred embodiment of the present invention, the first and second conduction preventing pieces protruding from the left and right sides of the right and left plates constituting the conduction preventing portion protrude from the upper support to restrict the tilt angles of the upper pillars, So that it can be inclined forward by an angle corresponding to the clearance between the primary transition prevention pieces when the upper support is rotated.

In a preferred embodiment, the second bullet-forming wire rope is constituted by connecting the unit wire ropes with at least one bidirectional shock absorber so that the variable strut portion can be flexibly tilted, It can be fastened with a nut and a curvature-type dominant point.

In a preferred embodiment, the second wire mesh part comprises: a wire net blocking a space between the upper struts constituting the variable strut part; A third bullet forming wire rope installed in the transverse direction so as to extend in the transverse direction so as to elastically support the lower portion of the wire net; A plurality of longitudinally arranged wire ropes arranged in a multi-stage arrangement in a vertical direction,

Wherein the third brass forming wire rope is arranged in a plurality of rows at a predetermined interval in the vertical direction and has at least one bidirectional impact absorbing portion connected between the unit wire ropes, A one-way shock absorber may be constructed.

In a preferred embodiment, the bidirectional shock absorber comprises: a coil spring having two unit wire ropes having hooking ends formed at one end thereof and penetrating the unit wire rope inwardly at the same time; And a plurality of unit wire ropes disposed at both ends of the coil spring and having hooking ends formed therein,

The first anti-deviation washer has a long hole formed at the center of the separation preventing washer, two unit wire ropes are passed through, a stopper for rotation prevention is formed on both sides of the long hole, and a bolt fastening hole is formed on the stopper. A second escape prevention washer formed with symmetrical openings into which one unit wire rope and a stopper are inserted corresponding to the first escape preventing washer respectively and having bolt fastening holes formed on the upper portion; And bolts and nuts fastened in the bolt fastening holes.

In a preferred embodiment, the unidirectional shock absorber includes an eye bolt coupled to an end of a unit wire rope and passing through a curved main or upper support located at one end or the other end; A coil spring axially coupled with the eye bolt to provide an elastic force; A washer which generates an elastic force by pressing the coil spring when the unit wire rope is pulled while preventing the eye bolt from being detached; And a nut which is fastened to the eye bolt to prevent the washer and the eye bolt from being pulled out from the curvature guide groove or the upper support.

The tunnel type rockfall protection facility having the variable pillar for shock absorption according to the present invention having the above characteristics is characterized in that, when a rock falls on a slope near the road, etc., a plurality of curved main rockers and a transverse pillar A supporting wire net is installed to absorb the collision energy with the rockfall firstly and the variable struts supported by the carbon wire rope at each curvilinear isthmus end and the transverse carbon wire rope connecting the variable struts A wire mesh that is pro-supported by cross-linked longitudinal wires is installed to absorb the collision energy secondarily while being inclined at the time of collision with a rockfall, thereby preventing the road from being controlled due to falling rocks on the road,

In addition, since the falling prevention means for restricting the inclination of the variable support provided at the upper end of the curvilinear dominant upper limit is limited so that the maximum inclination of the variable support located at the upper portion at the time of collision with the fallout is limited to maintain a certain angle, It is advantageous in that the vehicle can be safely operated by constructing the vehicle so as not to fall directly on the road or to move away from the road,

In addition, it provides a structure in which the curvature type ground joint is connected to the foundation of the underground foundation through the base plate, so that it can be repaired without dismantling the foundation bearing portion poured concrete during the repair work. It is the invention that is.

1 is a perspective view showing an installation structure of a tunnel-type rockfall protection facility according to an embodiment of the present invention,
FIG. 2 is a side view of a tunnel-type rockfall protection facility according to an embodiment of the present invention,
3 is a detailed structural view showing a fastening structure of a curvature guide main body and a base support main body according to an embodiment of the present invention,
FIG. 4 is an exemplary view showing a bidirectional shock absorber and a fastening structure of a carbon-made wire rope according to an embodiment of the present invention,
FIG. 5 is a view illustrating a unidirectional shock absorber and its fastening structure of a carbon-made wire rope according to an embodiment of the present invention,
FIG. 6 is a detailed perspective view illustrating a variable spout configuration according to an embodiment of the present invention, and FIG.
FIG. 7 is a detailed perspective view showing an anti-conduction part according to an embodiment of the present invention,
FIG. 8 is an exemplary view showing the operation of the variable strut portion through the multiple angle adjustment of the inversion preventing portion according to the embodiment of the present invention,
9 is a detailed perspective view showing an anti-reverse part according to another embodiment of the present invention,
10 is an exemplary view showing the operation of the variable strut portion through multi-angle adjustment of the inversion preventing portion according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view showing an installation structure of a tunnel-type rockfall protection facility according to an embodiment of the present invention, FIG. 2 is an illustration of a side installation structure of a tunnel-type rockfall protection facility according to an embodiment of the present invention, 3 is a detailed structural view showing a fastening structure between a curvature guide and a base support according to an embodiment of the present invention, FIG. 4 is a perspective view illustrating a bidirectional shock absorber of a carbon- FIG. 5 is an exemplary view showing a unidirectional shock absorber and its fastening structure of a carbon-form wire rope according to an embodiment of the present invention, and FIG. FIG. 7 is a detailed perspective view showing an anti-reflection portion according to an embodiment of the present invention, and FIG. 8 is a perspective view showing a portion of the variable support portion through multi-angle adjustment of the anti- FIG. 9 is a detailed perspective view showing an anti-reflection part according to another embodiment of the present invention, and FIG. 10 is a view showing an operation of the variable support part through multiple angle adjustment of the anti-reflection part according to another embodiment of the present invention. Fig.

As shown in the figure, the tunnel type rockfall protection facility having the variable strut for absorbing shock according to one embodiment of the present invention includes a foundation pillar main body 1 embedded in the ground; A plurality of curvilinear type main spindles (2) installed at regular intervals on the upper end of the basic supporting part; A plurality of transverse supports (3) for reinforcing the curved main main body in the transverse direction; A first wire netting part (4) for blocking a space part formed by the curved main cutting edge and the transverse supporting strut; A variable padding (5) installed at each of said curvilinear ends; And a second wire netting portion (6) for blocking the space between the variable edge portions.

The tunnel-type rockfall protection facility according to the present invention having the above-described structure is installed on a road adjacent to an inclined zone where rockfall may occur, so that the rockfall can be prevented from falling on the road when the rock falls, or the road is protected.

The tunnel-type rockfall protection facility having the shock-absorbing variable pillar has an inclined surface on only one side of the figure. If there is a slope on both sides of the road, a tunnel-type protection with a symmetrical structure Facilities may be formed on the outside of each road. In this case, it can have a perfect tunnel-like structure.

The foundation supporting part 1 is connected to a lower part of a plurality of curved main supporting guides 1 arranged at regular intervals along the periphery of the road adjacent to the inclined places to support a load, And the pillars 11 are embedded in the ground 12 at regular intervals in accordance with the curvilinear spacing of installation at the corresponding positions. The periphery of the buried foundation pillars is reinforced by pouring with concrete (13). The foundation struc- ture is made of steel, and it is preferable to construct it with an H-type beam having good rigidity and good bonding force when pouring concrete.

When the poured concrete is cured, it is formed by constructing a retaining wall 14 made of reinforced concrete connecting the protruded base pillars. The retaining wall is welded to the reinforcing bars by integrating the L-shaped anchor bolts (15), while reinforcing bars (not shown) are laid around the foundation pillars before concrete is laid. The L-shaped anchor bolt has a structure for fastening a base plate formed at each curvilinear prismatic lower end.

When the L-shaped anchor bolt is welded to the reinforcement for the reinforcement, the concrete is laid and cured using the formwork (not shown).

After curing, insert the holes formed in the base plate into the six L-shaped anchor bolts protruding from the upper part of the retaining wall, and tighten the nut. When the L-shaped anchor bolt and the base plate constituting the curvilinear basin formed on the retaining wall are fastened and integrated, the load of the curved main bearing 2 not directly connected to the base support is supported through the retaining wall structure .

Preferably, the curvature-shaped main paper 2 is made of an iron material and is preferably made of an H-shaped beam having good rigidity and fastening structure. The curved main lance 2 is constituted by a vertical portion 22 from a portion where the base plate 21 is formed to one section and the remaining portion is constituted by a curved portion 23 protruding and extending while curving toward the road direction.

The vertical portion and the curvature portion are constructed such that the vertical portions are stacked successively while the vertical portions are stacked, and the curvature portion is designed to block the falling rocks falling directly on the road at a height higher than the vertical portion height. Also, since the curvature portion has an elastic force based on a vertically connected unit, it has a structural advantage that it can not be easily deformed even if it collides with a rockfall momentarily.

In one embodiment, the curvature of the curved portion may be formed to have a length of the curvature portion by a vertical length so as to have a tunnel-like shape. However, the present invention does not limit the length of the curvature portion to a specific numerical value. It is sufficient that the curvature portion can be stretched so as to have a tunnel shape to achieve the purpose of the curvature portion.

The lower part of the curvature type main bearing 2 has a structure in which a base plate 21 fastened and coupled with an L-shaped anchor bolt 15 formed on a retaining wall 104 of the base support main body 1 is welded and integrated.

The base plate 21 may be fastened in a state in which the base plate is linearly welded to the curved base plate 2 and integrated when the base plate 21 is fastened to the L-shaped anchor bolt 15 protruding from the upper end of the retaining wall 14, After the plate 21 is installed, the curved base paper 2 may be welded and integrated.

It is important to select the welding integration point between the base plate and the curved main plate main body according to the site construction conditions. Importantly, the curvilinear main low-level lower mace plate integrated by welding is projected to the upper end of the wall and fastened to the exposed L- So that it can be supported by the foundation pillars buried in the ground even if the curved main bearing stock is not buried in the ground.

In addition, the curvature type main feeder 2 has a plurality of holes 24 arranged laterally at regular intervals to connect a plurality of first carbon forming wire ropes through adjacent curved main feed rods 2 .

The transverse strut 3 is a steel reinforcing material fastened in a lateral direction to support adjacent curvilinear main grooves 2 in a transverse direction, and is composed of a plurality of vertically arranged pieces arranged at regular intervals.

In the method of fastening between the curved main lobe 2 and the transverse strut 3, the connecting plate 31 is connected to the boundary between the upper and lower surfaces by connecting the two ends of the transverse strut to the curved main lobe, After each bolt is tightened, it is necessary to tighten the bolts with the nuts and tighten them to the connecting plate, the curved plate, and the hole that connects the connecting plate and the plate.

It is preferable that the transverse strut is made of an H-shaped beam preferably having good rigidity and fastening structure.

The first wire netting part (4) is constituted to block the space part formed by the curved main cutting edge and the transverse supporting strut. And a first bullet-shaped wire rope (42) provided in a transversely direction so as to elastically support the lower portion of the wire mesh, which is installed through the curved main winding main body in the transverse direction.

The wire net 41 is installed in each space portion formed by the curved main lance 2 and the transverse strut 3 and is connected to the first stranded wire rope 3 by various fastening means such as a string, .

A plurality of first brute-forming wire ropes 42 provided in the transverse direction are arranged at a predetermined interval in the vertical direction and are installed in multiple stages.

Each first molded wire rope 42 is formed by continuously passing holes formed in neighboring curvilinear grooves located at the same height among the holes 24 perforated at regular intervals along the side surface of the curvature- And both ends thereof are fastened and fixed to the one end and the other end curvilinear type main paper 2, respectively.

The first bullet forming wire rope 42 is provided with at least one bidirectional impact absorbing portion 43 for absorbing impact energy in collision with a fall stone and preventing the wire net from being broken, And the unit wire rope 44 fastened to the one side end or the other side end curvature type main feed 2 is provided with a unidirectional impact absorbing portion 45 at one end or the other end to form a bidirectional impact absorbing portion 43 And the unidirectional shock absorber 45, the elastic force is provided by the tensile force of each of the coil springs.

The bidirectional impact absorbing part 43 includes a coil spring 430 having two unit wire ropes 44 having hooking ends formed at one side thereof and penetrating the unit wire ropes 44 inward at the same time; The unit wire rope 44 formed with the engaging end 440 is fastened so as not to be caught and removed so that the unit wire rope is pulled by the impact with the fall rock, while the unit wire rope 44 is positioned at both ends of the coil spring And a release preventing washer 431 for pressing the coil spring to generate an elastic force.

The separation preventing washer portion 431 has a long hole 4311 formed at its center to allow two unit wire ropes 44 to pass therethrough and a stopper 4312 for preventing rotation is formed on both side ends of the long hole 4311, A first escape prevention washer 4310 having a bolt fastening hole 4313 formed therein; Openings 4321 and 4322 into which the single unit wire rope 44 and the stopper 4312 are inserted are formed symmetrically in correspondence with the first departure prevention washers and a second release Prevention washers 4320; Bolts 4330 passing through the bolt fastening holes; And a nut 4340 for tightening the bolt.

The unidirectional shock absorber 45 includes an eye bolt 450 fastened to an end of the unit wire rope 44 and passing through the one end or the other end curvilinear element 2; A coil spring 451 axially coupled with the eye bolt to provide an elastic force; A washer 452 which generates an elastic force by pressing the coil spring 451 when the unit wire rope 44 is pulled while preventing the eye bolt from being detached; And a nut 453 screwed to the eyebolt to prevent the washer and the eyebolt from falling out of the curved base.

The variable ground portion 5 is provided at each of the curvilinear isosceles end portions to prevent falling rocks falling on the curvilinear isosceles curvature portion from falling toward the roads and to prevent the second wire net portions from being broken or falling rocks to be further away from the roads So as to be inclined at an angle.

The configuration of the variable strut portion is provided at the upper end of the end portion of the curvilinear type main portion, and includes a non-conductive portion 51 constituted by a box-shaped case whose upper portion is opened; An upper strut (52) axially joined to the lower end point; And a second bullet forming wire rope (53) connected by connecting the upper strut and the curvilinear main beam main so that the upper strut is elastically supported when tilted.

In order to allow the axially coupled upper strut 52 to be tilted forward at a predetermined angle, the front portion has a configuration in which the upper partial section is inclined at a predetermined angle toward the front side, and the rear portion has the lower partial section rearward It has a constant angle inclined structure. By having such a shape, the upper strut can be inclined only at a limited angle in the forward direction without being inclined to the rear side.

Specifically, the lower plate 511 constituting the conduction preventing portion 51 has a hole projecting forward and rearward so as to secure an area for vertically and bolt-tightening the curved main spout 2, And a front plate 512, a rear plate 513, a left plate 514 and a right plate 515 are welded to upper portions of the lower plate 511 to form four peripheral surfaces.

The left side plate 514 and the right side plate 515 have a shape in which the front part is vertical from the lower part to the upper part and are slanted so as to be inclined forward from a certain section toward the front side.

Also, the shape of the rear part is basically configured such that the lower part and the upper part are formed at right angles as shown in Figs.

In addition, the rear portion may be formed in a shape that is obliquely processed in the forward direction in the lower portion and perpendicular to the upper portion in a certain period as shown in FIGS. 9 and 10 in another embodiment.

Accordingly, the front plate has a shape in which the upper side is inclined forwardly, and the rear plate has a shape in which the basic shape is a vertical shape or a shape in which the lower side is inclined backward in another embodiment.

As a result, when the upper strut is tilted forward, there is no interference phenomenon when it is tilted forward due to the inclined part, so that the inclination of the upper strut tilts to near the tilting angle and the tilting is controlled at a certain angle. Interference occurs, and the inclination toward the rear side is interrupted to maintain the almost vertical state.

The left plate 514 and the right plate 515 are formed with holes 5141 and 5151 through which the shaft 54 which is axially coupled with the upper strut 52 passes, On the inner side surface, primary prevention pieces 5142 and 5152 for limiting the inclination angle of the upper support are respectively protruded in the inward direction. The first conduction preventing pieces 5142 and 5152 are formed at the lower portion of the upper support 52 and include first and second conduction preventing pieces 521 and 522 protruding outwardly from both sides of the hole 524 through which the shaft 54 passes, A pair of donuts are formed on the same surface, and some of the sections are cut so as to have a clearance 55. Such a clearance section corresponds to an angle section in which the upper strut can rotate.

That is, when the first upper support pillars 52 are vertically installed, the first side transition preventing member formed on the upper support and the first side transition preventing member formed on the left side plate and the right side plate are in contact with the rear side, . As a result, the upper strut can not be moved backward.

8, when the upper strut is tilted forward due to the application or collision of the lower strut 52 with the load caused by the lowering stone, as shown in Fig. 8, the upper strut 51 The primary prevention members 521 and 522 formed on the inner side of the left side plate 514 and the right side plate 515 of the non-conductive portion 51 while being axially rotated together with the upper support 51 about the axis 54, The primary side is in contact with the first primary prevention pieces 5142 and 5152 protruding from the first secondary prevention pieces 5142 and 5152, As a result, no further rotation occurs and the tilt is interrupted at a certain angle.

Even if an additional load of rockfall is applied, the front portion of the underside portion 51 constituted by the box-shaped case with the upper portion opened has a configuration in which a portion of the upper portion of the front plate 512 is inclined forward at a predetermined angle So that the upper support is hooked and tilted only at a limited angle in the forward direction to be interrupted and multiple interrupted.

In addition, as well as the multi-angle limiting structure of the first and second conduction preventing portions, the force to be continuously pulled in the inward direction, that is, the opposite direction by the second bullet forming wire rope 53 connected to the upper support, So that the curved struc- tural curvature portion protrudes toward the road, and the upper struc- ture is inclined at a certain angle, so that the struc- ture falls far away from the road as much as possible.

The second carbon-made carbon fiber-wound wire rope 53 has at least one bidirectional shock absorber (not shown) so as to be able to be flexibly tilted so as to absorb collision energy at the time of collision with the rockfall and to prevent the wire mesh from being broken And an eye bolt 534 formed at both ends of the unit wire rope is fastened and fixed by an upper support and a curvilinear point and a nut.

The configuration of the bidirectional shock absorbing portion is the same as or similar to the configuration and the operation method of the first carbonized carbon forming wire rope. The coil spring 531, the separation preventing washer 532, the two or more unit wire ropes 533, but the description of the lower structure and the detailed description will be omitted and the above description will be omitted.

The upper strut 52 is formed of a circular tube made of steel and has holes 520 formed on both lateral sides thereof to connect the third bullet forming wire rope of the second wire net. These holes 520 are formed by vertically arranging a plurality of holes corresponding to the number of the third brass forming wire rope.

In addition, the upper struts 52 located at the opposite ends of the upper struts 52 arranged in a plurality of transversely arranged structures are respectively provided with unidirectional impact absorbing portions formed at both ends of the third elastic wire rope, and are configured to provide an elastic force by a spring.

In addition, each upper strut is formed with a hole 523 at the rear side thereof, and an eye bolt formed at one end of the second carbon-made charcoal-forming wire rope passes through and is fixed with a nut from the inside.

The second wire mesh part 6 is configured to block the space between the upper struts 52 constituting the variable strut part and includes a wire mesh 61; A third bullet forming wire rope (62) installed horizontally in the upper land side and installed in a lateral direction so as to elastically support the lower portion of the wire net; And a longitudinal wire rope 63 for cross-binding the third brick-formed wire ropes provided in a multi-stage arrangement in the upper and lower portions by using the cross binders 64. [

The third bullet forming wire rope 62 is provided with at least one bidirectional impact absorbing portion 65 for absorbing impact energy in collision with a fallout and preventing the wire net from being broken, And the unit wire rope fastened to one side end or the other side upper end support is provided with a unidirectional shock absorber 67 at one end or the other end so as to be provided with an elastic force by a tensile force of the coil spring.

The configuration of the bidirectional impact absorbing portion and the unidirectional impact absorbing portion are the same or similar to those of the first carbonized carbon forming wire rope, and thus the description of the configuration is omitted. However, the unidirectional shock absorber is different from that provided in the upper strut in place of the curvature type main strap of the first carbon-form molded carbon wire rope, and the installation site can be selectively installed inside the upper strut or in the outward direction of the upper strut.

Further, it is sufficient that the cross-linking member has a known construction in which crosswise and longitudinal wire ropes can be cross-linked, and a detailed description thereof will be omitted.

The longitudinal wire ropes are constituted by arranging a plurality of longitudinally arranged wire ropes in the left and right direction, and both ends are fixedly connected to the third wire forming wire rope directly as shown in the place of the crossing binding sphere.

The wire net is installed in each space formed by the upper strut and may be connected to the third stranded wire rope by various fastening means such as unillustrated string, synthetic resin tie, clip, and the like.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(1): foundation foundation main part (2): curvature type main note
(3): transverse support (4): first wire netting
(5): Variable spigot part (6): Second wire net part
(11): foundation post (12): ground
(13): Concrete (14): Retaining wall
(15): L-shaped anchor bolt (21): Base plate
(22): vertical portion (23): curvature portion
(24): hole (31): connecting plate
(41): wire net (42): first-form molded wire rope
(43): bidirectional shock absorber (44): unit wire rope
(45): unidirectional shock absorbing part (51): inversion preventing part
(52): upper strut (53): second stranded wire rope
(54): shaft (55): clearance
(61): wire mesh (62): third-form molded wire rope
(63): longitudinal wire rope (64): cross-linkage
(65): bidirectional shock absorber (66): unit wire rope
(67): unidirectional shock absorber (430): coil spring
(431): separation prevention washer (440): engagement step
(450): eye bolt (451): coil spring
(452): washer (453): nut
(511): lower plate (512): front plate
(513): rear plate (514): left plate
(515): right side plate (520, 523, 524): hole
(521, 522): primary turning prevention piece (531): coil spring
(532): separation preventing washer (533): unit wire rope
(534): Eye bolt (4310): First release prevention washer
(4311): Long hole 4312: Stopper for rotation prevention
(4313): bolt fastening hole (4320): second release prevention washer
(4321, 4322): opening 4323 to be inserted: bolt fastening hole
(4330): Bolt (4340): Nut
(5141, 5151): holes (5142, 5152): primary conduction preventing pieces

Claims (12)

A base support main body (1) embedded in the ground;
A plurality of curvilinear type main spindles (2) installed at regular intervals on the upper end of the basic supporting part;
A plurality of transverse supports (3) for reinforcing the curved main main body in the transverse direction;
A first wire netting part (4) for blocking a space part formed by the curved main cutting edge and the transverse supporting strut;
A variable padding (5) installed at each of said curvilinear ends;
And a second wire net portion (6) for blocking a space between the variable ground main portions.
The method according to claim 1,
A plurality of steel foundation posts (1) embedded in the ground in accordance with a curvilinear spacing interval, the periphery of which is reinforced by being poured into concrete, and a part of the top is protruded above the ground;
A retaining wall pierced with reinforced concrete so as to connect the protruded foundation posts to the ground;
And an L-shaped anchor bolt welded to the reinforcing bars arranged at the respective foundation post positions at the time of constructing the retaining wall and partially protruding to the upper part of the retaining wall. The method according to claim 1,
The curved main ladder main body 2 is made of iron and has a base plate to be fastened to an L-shaped anchor bolt protruding from a retaining wall of a foundation supporting part in a lower part thereof, and a plurality And the other part is composed of a curved portion that protrudes and elongates while curving toward the direction of the road. The tuning support according to claim 1, Type rockfall protection facility.
The method according to claim 1,
Wherein the transverse strut is an iron member fastened to support adjacent curvilinear main grooves so as to be laterally reinforced and arranged at a plurality of intervals in the vertical direction. .
The method according to claim 1,
The first wire net part (4) comprises: a wire net covering a space part formed by a curved main and a lateral support; And a first bullet forming wire rope installed transversely to the curved main bulge main body and installed in a lateral direction so as to elastically support the lower portion of the wire net,
Wherein the first shrink-molded wire rope is arranged in a plurality of stages at regular intervals in the vertical direction and has at least one or more bidirectional impact absorbing portions connected between the unit wire ropes, and the one- Wherein the unidirectional shock absorbing portion is constituted by a plurality of shock absorbers.
The method according to claim 1,
The variable strut portion is provided at an upper end of an end portion of the curvilinear shaped lid and includes a box-shaped case opened at an upper portion thereof; An upper support having a lower turning point axially coupled to the anti-detachment portion and formed with a first anti-reverse protrusion protruding from a lower portion of both side holes for shaft coupling; And a second bullet-shaped wire rope connected to the upper strut and the curvilinear main beam so as to elastically support the upper strut when tilted.
The method of claim 6,
The front portion has a structure in which a portion of the upper portion is inclined at a predetermined angle toward the front side and a rear portion is configured in a vertical structure or a portion of the lower portion is inclined at a predetermined angle to the rear side so that the shaft- Wherein the shock-absorbing variable support has a photo structure.
The method of claim 6,
The first and second conduction preventing members protrude from the left and right sides of the right and left plates, respectively. The first conduction preventing member protrudes from the first conduction preventing member to limit the tilt angle of the upper support. Wherein the variable inclination support portion is inclined forward by an angle corresponding to a clearance between the first and second inclination preventing pieces.
The method of claim 6,
Wherein the second bullet-forming wire rope is constituted by connecting at least one bidirectional shock absorber to connect the unit wire ropes so that the variable strut portion can be flexibly tilted, and the eye bolts formed at both ends of the second bullet- Wherein the fixed support portion is fixed by being fixed at one point and a nut.
The method according to claim 1,
The second wire mesh part (6) comprises a wire mesh which blocks the space between the upper struts constituting the variable strut part; A third bullet forming wire rope installed in the transverse direction so as to extend in the transverse direction so as to elastically support the lower portion of the wire net; A plurality of longitudinally arranged wire ropes arranged in a multi-stage arrangement in a vertical direction,
Wherein the third brass forming wire rope is arranged in a plurality of rows at a predetermined interval in the vertical direction and has at least one bidirectional impact absorbing portion connected between the unit wire ropes, Characterized in that a unidirectional impact absorbing portion is provided on the side wall of the tunnel.
The method according to any one of claims 5, 9, and 10,
Wherein the bidirectional shock absorbing portion comprises: a coil spring having two unit wire ropes having hooking ends formed at one end thereof and penetrating the unit wire rope at the same time inward; And a plurality of unit wire ropes disposed at both ends of the coil spring and having hooking ends formed therein,
The first anti-deviation washer has a long hole formed at the center of the separation preventing washer, two unit wire ropes are passed through, a stopper for rotation prevention is formed on both sides of the long hole, and a bolt fastening hole is formed on the stopper. A second escape prevention washer formed with symmetrical openings into which one unit wire rope and a stopper are inserted corresponding to the first escape preventing washer respectively and having bolt fastening holes formed on the upper portion; And a bolt and a nut fastened to each of the bolt fastening holes.
The method according to claim 5 or 10,
Wherein the unidirectional shock absorber comprises: an eye bolt coupled to an end of the unit wire rope and passing through a curved main or upper support located at one end or the other end; A coil spring axially coupled with the eye bolt to provide an elastic force; A washer which generates an elastic force by pressing the coil spring when the unit wire rope is pulled while preventing the eye bolt from being detached; And a nut secured to the eyebolt to prevent the washer and the eye bolt from being pulled out from the curvature guide groove or the upper support.

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