KR20180042621A - Shock-absorbing wire rope locking device and net structure for preventing falling rock using thereof - Google Patents

Abstract

The present invention relates to a shock-absorbing type wire rope locking device and a separable falling-stone prevention structure using the same. The purpose of the present invention is to provide the shock-absorbing type wire rope locking device, capable of locking a transverse wire rope and a longitudinal wire rope fixing and supporting a net installed on a slope to prevent stone from falling in order for the transverse wire rope and the longitudinal wire rope to be alternate so that tension is applied between discontinuous unit wire ropes on both sides, and the separable falling-stone prevention structure using the same, wherein the separable falling-stone prevention structure can be easily constructed and repaired. According to the present invention, the shock-absorbing type wire rope locking device comprises: an assembly unit comprising a first locking hole unit and a second locking hole unit formed on different axes to lock each one end of the wire rope in one direction, a lower groove binding the wire rope in the other direction crossing the wire rope in the one direction, and a fixing unit formed between the first locking hole unit and the second locking hole unit and having a hole for penetration of a lock bolt fixed to bedrock; and a shock-absorbing locking unit providing the tension by being locked to the each one end of the wire rope of the one direction in the first locking hole unit and the second locking hole unit; a pressing plate installed by coming into contact with the lower part of the assembly unit and pressing the net as a hole which the lock bolt penetrates is formed on the center; and a lock bolt unit comprising the lock bolt and a nut to fix the assembly unit and the pressing plate to the bedrock.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shock-absorbing wire rope fastening device and a detachable detachable fall-

The present invention relates to a buffer type wire rope fastening apparatus and a detachable fall prevention network structure using the wire rope fastening apparatus. More particularly, the present invention relates to a wire rope fastening apparatus for crossing a transverse direction and a longitudinal direction wire rope provided on an inclined surface, A buffer type wire rope fastening device for fastening the non-continuous unit wire ropes so that tension is applied to the unit wire ropes can be detached to bind the unit wire ropes, thereby reducing the number of excessive anchor bolts and rock bolts installed on the sloped rocks, To a technology that can be protected and at the same time easy to install and repair.

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 plant's sowing action can fall on the road, making it very vulnerable to road safety.

In order to prevent such rockfall, various kinds of anti-rocking means are installed on the rock wall of the slope around the road, and a preventive measure is typically used.

These rockfall prevention networks are constructed in various forms such as non-pocket type or pocket type. If you look at the basic construction structure briefly, you should cover the construction site that is required to prevent rockfall (eg, PVC coated iron net) A number of main anchor bolts are installed at the uppermost portion 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 vertically spaced apart from each other By sequentially mounting each crossing across multiple longitudinal ropes and fixing them to the slopes using rock bolts at every crossing or end point, the net is supported by multiple longitudinal and transverse wire ropes to prevent falling Or a rockfall does not fall on the road.

However, in the above-described conventional rock-fall preventing means, an excessive number of anchor bolts and rock bolts are installed in inclined rocks at the intersection of the longitudinal and transverse wire ropes to weaken the rocky condition, Can be increased.

In addition, the conventional rockfall preventing means has a problem in that when the wire rope is in close contact with the rock wall, if it can not provide enough tension, it will not cause falling rocks or falling on the road when falling rocks occur.

In addition, since a single continuous longitudinal or transverse wire rope is used, there is a structural problem that it is difficult to perform precise construction or partial repair due to poor working conditions of the worker due to the load of the wire rope.

Korean Registered Patent Publication No. 10-1506327 (Feb. Korea Public Disclosure Disclosure No. 10-2006-0135582 (Dec. 29, 2006) Korea Public Disclosure Release No. 10-1999-0071243 (September 15, 1999) Korea Public Disclosure Release No. 10-1999-0071242 (September 15, 1999)

In order to solve the above problems, it is an object of the present invention to solve the above problems by providing a wire rope for fixing crosswise and longitudinal wire ropes fixedly supporting a net provided on an inclined surface for the purpose of preventing rockfall, And to provide a buffer type wire rope fastening device that can be used as a wire rope fastening device.

Another object of the present invention is to provide a unit rockfall prevention network structure in which longitudinal and transverse unit wire ropes are connected by a cushioning type wire rope fastening device and crossing assembly, Which can reduce the number of excessive anchor bolts and rock bolts installed on a rockfall preventing structure, thereby facilitating construction and repair.

According to an aspect of the present invention, there is provided a wire rope comprising: a first fastening hole portion and a second fastening hole portion formed on different axes for fastening one end of a one-way wire rope; An assembly comprising a lower groove for binding the other directional wire rope crossing the one-way wire rope, and a fixing portion formed between the first and second fastening hole portions and formed with locking bolt through holes to be fixed to the rock plate;

 A cushioning fastening portion fastened to one end of each one-way wire rope in the first fastening hole portion and the second fastening hole portion to provide a tensile force;

A pressure plate installed in the lower part of the lower part of the granulating compartment and having a hole through which the locking bolt passes,

And a lock bolt part composed of a lock bolt and a nut for fixing the assembly and the pressure plate to the rock.

In a preferred embodiment, the first fastening hole portion and the second fastening hole portion of the assembly port are formed around the holes through which the eye bolts of the buffer fastening portions coupled with the respective one-way wire ropes pass, A support groove may be formed to support the spring so that it is not released during compression.

In a preferred embodiment, the first fastening hole portion and the second fastening hole portion are connected to each other at one side end of a non-continuous longitudinal or transverse unit wire rope or wire rope, Directional unit Wire rope or wire rope can be located and connected.

In a preferred embodiment, the buffer fastening portion includes an eye bolt having one end coupled to the one-way wire rope and the other end inserted into each hole formed in the first fastening hole portion and the second fastening hole portion, A coil spring inserted at one end into a support groove formed in the first fastening hole portion and the second fastening hole portion and coupled to the nut at the other end, and a second spring fixed to the other end of the coil bolt to adjust the tension of the coil spring. The nut may be formed of a nut.

According to another aspect of the present invention, there is provided a wire rope comprising: a plurality of longitudinal and transverse unit wire ropes cut and cross-arranged in a predetermined length so as to press and support a top portion of a net covering a rock;

A cross assembly for connecting respective intersections between the longitudinal and transverse unit wire ropes;

And a cushioning wire rope fastening device or an end cushioning wire rope fastening device provided at an end of each of the unit wire ropes so as to be continuously assembled through the connection between the neighboring unit rockfall prevention network structure and each buffering wire rope fastening device The present invention provides a detachable fall prevention network structure using the buffered wire rope fastening device.

In a preferred embodiment, the end portion buffering type wire rope fastening device comprises: an assembly having a fastening hole portion for fastening one end of the one-way wire rope and a fastening portion formed with a hole through which the fastening bolt is fixed; A buffer coupling portion which is fastened to one end of the one-way wire rope to provide a tension; And a lock bolt portion for fixing the assembly to the rock.

According to a preferred embodiment of the present invention, the fastening hole portion is formed with a hole through which the eye bolt of the shock absorbing fastening portion coupled with the unidirectional wire rope passes, and a support groove formed around the hole to support the spring of the shock absorbing fastening portion so as not to be released during compression ,

Wherein the buffering fastening part includes an eye bolt having one end fastened to the one-way wire rope and the other end inserted into a hole formed in the fastening hole part and having a screw thread formed on the surface thereof, and one end inserted into the fastening hole formed in the fastening hole part, The other end may be a coil spring coupled with the nut and a nut screwed to the other end of the wire bolt to adjust the tension of the coil spring.

In a preferred embodiment, the crossover assembly includes: a lower assembly having a plurality of fastening holes for fastening the crossover grooves and the upper assembly to the longitudinal and transverse unit wire ropes; An upper assembly having a plurality of fastening holes for fastening the cross grooves and the lower assembly to the longitudinal and transverse unit wire ropes; A bolt passing through each of the fastening holes formed in the lower assembly and the upper assembly, and a nut for fixing the bolt.

In a preferred embodiment, the unit wire rope is cut to a predetermined length and the eye bolts are fastened to both ends thereof.

In a preferred embodiment, the end buffering wire rope fastening device is provided at a longitudinal or transverse unit wire rope end located at the outer portion of the unitary rockfall prevention network structure located around the outermost periphery of the entire fall-prevention network,

The buffered wire rope fastening device may be installed at each of the remaining inner side portions of the anti-fall prevention network structure provided around the outermost periphery and each end portion of the longitudinal or transverse unit wire rope of the unitary anti-slip prevention network structure connected in the inward direction.

The buffering type wire rope fastening device according to the present invention having the above-described features is characterized in that transverse and longitudinal wire ropes fixedly supporting a mesh network provided on an inclined surface for the purpose of preventing fall- And thus,

In addition, the separable rockfall preventing network structure according to the present invention is constructed such that a unit structure in which longitudinal and transverse unit wire ropes are bound by a buffer type wire rope fastening device and a cross assembly device is connected to a neighboring unit laying prevention net structure, This is a useful invention having advantage of being easy to construct and repair while protecting the rock quality by reducing the number of excessive anchor bolts and rock bolts installed.

FIG. 1 is a perspective view showing a buffered wire rope fastening apparatus according to an embodiment of the present invention,
FIG. 2 is a perspective view illustrating a two-way wire rope assembly according to an embodiment of the present invention,
FIG. 3 is an exemplary view showing a state in which tension is applied to a longitudinal or transverse wire rope in a buffered wire rope fastening apparatus according to an embodiment of the present invention,
4 is an exemplary view showing a unit wire rope fastened to the buffered wire rope fastening apparatus of the present invention,
5 is a perspective view showing an end buffered wire rope fastening apparatus according to another embodiment of the present invention,
6 is a perspective view showing an end wire rope assembly according to an embodiment of the present invention,
FIG. 7 is an exemplary view showing a detachable rockfall preventing network structure installed at one side edge portion of the longitudinal and transverse direction wire ropes joined by the buffered wire rope fastening device and the crossing assembly according to an embodiment of the present invention,
FIG. 8 is a cross-sectional view of a cross-assembly assembly installed at an intersection between longitudinal and transverse wire ropes according to an embodiment of the present invention,
9 is an exploded perspective view of a crossover assembly according to an embodiment of the present invention,
10 is an exemplary view showing a main anchor bolt installed at a longitudinal upper end according to an embodiment of the present invention,
FIG. 11 is an exemplary view showing a state where a detachable rockfall preventing network structure according to an embodiment of the present invention fixes a net. FIG.
FIG. 12 is an exemplary view showing another detachable rockfall preventing network structure connected to a detachable rockfall preventing network structure according to an embodiment of the present invention. FIG.

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 a buffered wire rope fastening apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view showing a two-way wire rope assembly according to an embodiment of the present invention, FIG. FIG. 8 is a view showing a state in which a longitudinal or transverse wire rope is tensioned after being fastened to a buffered wire rope fastening apparatus according to an embodiment.

As shown in the figure, the buffer type wire rope fastening apparatus 1 according to an embodiment of the present invention includes first fastening hole portions 110 formed on different axes for fastening one end of the one-way wire rope 4, A second fastening hole portion 113 and a lower groove 116 for fastening the other direction wire rope 4 crossing the one-way wire rope 4 and a second fastening hole portion 110, 113), and a fixing portion (117) formed with a locking bolt penetrating hole (118) fixed to the rock;

 A shock absorbing coupling portion 12 fastened to one end of each unidirectional wire rope 4 in the first fastening hole portion 110 and the second fastening hole portion 113 to provide a tensile force;

A rocking bolt through hole 131 is formed at the center of the lower part of the assembly tool 11 to press the mesh;

And a rock bolt portion (14) for fixing the assembly tool (11) and the pressure plate (13) to the rock.

The first fastening hole 110 and the second fastening hole 113 of the assembly tool 11 are provided with holes 111 and 114 through which the eye bolts of the shock absorbing fastening portions 12 to be engaged with the respective one- And support grooves 112 and 115 formed around the holes to support the spring of the shock absorbing coupling part 12 so as not to be released during compression. At this time, the support grooves 112 and 115 formed in the first fastening hole portion 110 and the second fastening hole portion 113 are formed to be opposite to each other.

The first fastening hole portion 110 and the second fastening hole portion 113 are spaced apart from each other at regular intervals and are formed in parallel on the respective axes. The lower groove 116 is formed in the first fastening hole portion 110 and the second fastening hole portion 113 113 to fix the wire rope 4 in the other direction by pressing with the pressure plate 13. [ At this time, the force for providing the pressing force is provided by the force that the nut 142 constituting the lock bolt portion 14 tightens the lock bolt 141. [ At this time, on the inner diameter surface of the lower groove 116, a non-slip means such as a thread or a rough-machined portion for preventing slippage of the wire rope 4 may be machined if necessary.

Therefore, the assembly tool 11 binds the two non-continuous one-way wire ropes 4 and the other-direction wire ropes 4 intersecting at once.

The wire rope 4 in a direction crossing through the first fastening hole portion 110 and the second fastening hole portion 113 and the lower groove 116 is fastened to the assembly tool 11, The adjacent wire ropes 4 are connected to each other through the first fastening hole part 110 and the second fastening hole part 113 formed on different axes and the lower groove 116 formed at the lower part Through which the continuous wire rope 4 is passed.

The wire rope 4 fastened through the first fastening hole portion 110 and the second fastening hole portion 113 and the lower groove 116 is bent in the longitudinal direction or the vertical direction according to the installation direction of the buffer type wire rope fastening device 1. [ One of the wire ropes of the transverse wire rope 4 is located. If the non-continuous transverse wire rope 4 is connected to the first fastening hole portion 110 and the second fastening hole portion 113, the unit wire rope 4 is continuously attached in the transverse direction, 12 in the transverse direction to prevent rockfall from occurring in the rock mass or to buffer the rockfall when rockfall occurs.

Similarly, when the non-continuous longitudinal wire rope 4 is connected to the first fastening hole portion 110 and the second fastening hole portion 113, the unit fastening rope 4 is continuously attached to the unit wire rope in the longitudinal direction, To provide a tension in the longitudinal direction so as not to cause rockfall in the rock or to buffer the rockfall in the event of rockfall.

Therefore, the unit wire rope 4 can be continuously connected in an arbitrary direction by adjusting the installation direction (angle) of the buffer type wire rope fastening device 1 according to the required installation site.

The fixing portion 117 is formed so as to protrude laterally between the first fastening hole portion 110 and the second fastening hole portion 113 so that the first fastening hole portion 110 and the second fastening hole portion 113 are fixed Spaced apart. When the first fastening hole part 110 and the second fastening hole part 113 are spaced apart from each other by a predetermined distance, the buffer fastening part 12 is installed in the first fastening hole part 110 and the second fastening hole part 113, respectively Interference will not occur.

The holes 118 formed in the fixing portion 117 are formed coaxially with the holes formed in the interposed pressure plate 13 so that the locking bolts 141 are inserted into the rocks after they pass through them and are fixed.

One end of each of the buffering fastening portions 12 is fastened to the one-way wire rope 4 and the other end is fastened to the holes 111 and 114 formed in the first fastening hole portion 110 and the second fastening hole portion 113 And one end of each of which is inserted into the support grooves 112 and 115 formed in the first fastening hole portion 113 and the second fastening hole portion 113. The eye bolt 121 is inserted into the eyebolt 121, And the other end thereof is engaged with the nut 123 so that the rock bolt is expanded to the wire rope fastened to one end of the eye bolt 121 to pull the eye bolt 121 to contract and provide tension, A coil spring 122 for press-supporting the rock bolt while preventing the wire rope 4 from being broken, thereby preventing further rock expansion or falling of the rock bolt, and a nut (not shown) screwed to the other end of the wob bolt to adjust the tension of the coil spring (123).

The lock bolt portion 14 is composed of a locking bolt 141 having a threaded portion and a nut 142 that rotates around the locking bolt 141 so that the fixing portion 117 The pressure plate 13 pressed against the fixing portion 117 is pressed toward the surface of the rock plate so as to press and fix the plate 6 below the pressure plate 13. [

The lock bolt 141 is generally inserted and fixed in a bolt hole formed in a rock bed in a state filled with an adhesive agent (resin or cement). In other methods, an external force can be applied directly to the rock bed. The operator can use it selectively when constructing.

The present invention constructed as described above is characterized in that the respective cushion coupling portions 12 are connected through the first fastening hole portion 110 and the second fastening hole portion 113 formed in the assembly tool 11 of the buffer type wire rope fastening device 1 The wire rope 4 is connected to one end of the non-continuous wire rope 4 to provide a tensile force to support the pressure when the rock is expanded, The worker or the equipment used for the installation does not have to always work with the total load of the wire rope 4 in mind, thereby facilitating construction and repair. That is, a unit wire rope 4 having a predetermined length other than one wire rope 4 is fastened to the first fastening hole portion 110 and the second fastening hole portion 113, So that it is possible to perform precise construction. In addition, repairing and replacing the wire rope 4 is convenient because the wire rope 4 is repaired due to deterioration after the installation or the unit wire rope 4 is loosened in one region even when the rockfall trapped in the inside is removed.

4 is an exemplary view showing a unit wire rope fastened to the buffered wire rope fastening apparatus of the present invention.

As shown in the figure, the wire rope 4 is fastened using the assembly tool 11 and the buffer fastening part 12. One of the fastening methods is to manually fasten the wire rope 4 to the eyebolt 121 There is a method in which the wire rope 4 overlapped with the hole is fixed with one or more wire clips.

Alternatively, a unit wire rope 4 having an eye bolt formed at both ends or one end of the wire rope 4 from the beginning may be used. If the wire rope 4 having a predetermined length is pre-fastened to the eyebolt in this way, it is not necessary to fix the wire rope 4 with the wire rope 4 after the wire rope 4 is inserted into the eye bolt in the field, do.

Particularly, if the unit bolt 121 is used in advance and the unit wire rope 4 is used, a detachable rockfall preventing network structure having a certain standard can be continuously connected to the adjacent detachable fall prevention network structures to reduce the construction time.

FIG. 5 is a perspective view showing an end buffering type wire rope fastening apparatus according to another embodiment of the present invention, and FIG. 6 is a perspective view showing an end wire rope assembly according to an embodiment of the present invention.

As shown in the drawing, the end buffering type wire rope fastening device 2 is different from the buffer type wire rope fastening device 1 for fastening between the non-continuous wire ropes 4 located on both sides described above, (4) only while providing tension. Therefore, a structure for binding the wire rope 4 to be crossed like the buffer type wire rope fastening apparatus 1 is also excluded. The end portion buffering type wire rope fastening device 2 is installed at one edge of the edge of the fall-preventing network.

Specifically, the structure of the end portion buffering type wire rope fastening device 2 includes a fastening hole portion 210 for fastening one end of the unidirectional wire rope 4, a hole (not shown) through which the lock bolt 241 fixed to the rock is passed (21) provided with a fixing portion (217) formed with a fixing portion (218); A shock absorbing coupling part (22) fastened to one end of the one-way wire rope (4) to provide tension; And a lock bolt portion (24) for fixing the assembly tool (21) to the rock.

The fastening hole 210 is formed with a hole 211 through which the eye bolt 221 of the shock absorbing fastening part 22 to be coupled with the unidirectional wire rope 4 passes, A support groove 212 is formed to support the spring 222 of the valve body 222 so as not to be released during compression.

The wire rope 4 bound to the fastening hole portion 210 may be any of longitudinal or transverse wire ropes 4 and when fastened, it provides tension by the buffering fastening portion 22, It is supported while the tension can withstand.

The fixing part 217 is formed to protrude in one side direction different from the direction of forming the fastening hole part 210 and the locking bolt 241 passing through the hole 218 formed in the fixing part is inserted and fixed in the rock.

Each of the buffering fastening portions 22 is fastened to the one-way wire rope 4 at one end and inserted into the hole 211 formed at the fastening hole portion 210, And one end is inserted into a support groove 212 formed in the fastening hole 210 and the other end is coupled with a nut 223 to be fastened to one end of the eye bolt 221 When the rock bolt is inflated in the wire rope 4 and the eye bolt 221 is pulled, the wire rope 4 is contracted to provide a tensile force so that the wire rope 4 is not broken and the rock bolt is pressed and supported to prevent further rock- And a nut 223 screwed to the other end of the wye bolt 221 to adjust the tension of the coil spring.

The rock bolt portion 24 is composed of a rock bolt 241 formed in a thread and a nut 242 fitted in the rock bolt 241 and tightly fixing the fixing portion 217 toward the rock surface by rotation, . The lock bolt 241 is generally inserted and fixed in a state in which the bolt hole formed in the rock is filled with an adhesive (resin or cement). In other methods, an external force can be applied directly to the rock bed. The operator can use it selectively when constructing.

FIG. 7 is an exemplary view showing a detachable rockfall preventing network structure installed at one side edge portion of the longitudinal and transverse direction wire ropes joined by the buffered wire rope fastening device and the crossing assembly according to an embodiment of the present invention, FIG. 8 is a cross-sectional perspective view of a crossover assembly according to an embodiment of the present invention, and FIG. 9 is an exploded perspective view of a crossover assembly according to an embodiment of the present invention And FIG. 10 is an exemplary view showing a main anchor bolt installed at a longitudinal upper end according to an embodiment of the present invention.

As shown in the figure, the detachable rockfall prevention network structure provided at one side edge portion according to an embodiment of the present invention includes a plurality of longitudinal and transverse direction cross- And each intersection point between the transverse unit wire ropes 4 is bound to the cross assembly 3. By such binding, a plurality of transverse and longitudinal crossing assemblies 3 are arranged so that the longitudinal and transverse unit wire ropes 4 are constructed as unit pieces.

The detachable unitary rockfall prevention network structure constructed as described above is constructed so as to continuously expand the construction site through the connection between the neighboring detachable unit rockfall prevention network structure and each of the buffer type wire rope fastening devices 1.

The cushioning wire rope fastening device 1 or the cushioning wire rope fastening device 1 or the cushioning wire rope fastening device 1 or the cushioning wire rope fastening device 1 or the cushioning wire rope fastening device 1 may be provided at the end portions of the unit wire ropes 4 or the wire ropes 4, The end buffering type wire rope fastening device 2 is engaged.

In other words, an end buffering type wire rope fastening device 2 is provided at an end portion of the outer longitudinal or transverse unit wire rope 4 of the detachable unitary rockfall preventing network structure provided around the outermost periphery of the entire fall prevention network, A buffer type wire rope fastening device (1) is provided at each end of the longitudinal or transverse unit wire rope (4) of the detachable unitary rockfall preventing network structure connected in the inner part and the inward direction.

A plurality of main anchor bolt portions 5 or end buffering wire rope fastening devices 2 are installed along the transverse direction at the top of the detachable rockfall prevention network structure to form a longitudinal unit wire rope 4 or a longitudinal wire rope 4 to be fixed.

At this time, the main anchor bolt portion 5 is generally formed by forming a bolt hole 52 in a rock and then inserting and fixing the main anchor bolt 51 in a state where an adhesive agent (resin or cement) is filled in the bolt hole. In other methods, an external force can be applied directly to the rock bed. The operator can use it selectively when constructing. The longitudinal unit wire rope 4 or the longitudinal wire rope 4 engaged with the main anchor bolt portion 5 is manually fixed to the main anchor bolt hole and then the overlapped wire rope 4 is fixed with one or more wire clips There is a way to use it. Alternatively, the unit wire rope 4 having the main anchor bolts formed at both ends or one end of the wire rope 4 from the beginning may be used. If the main anchor bolt is pre-fastened to the wire rope 4 in a predetermined length, it is not necessary to place the wire rope 4 in the main anchor bolt and fix it with a wire clip, .

The construction and installation method of the end portion buffer type wire rope fastening device 2 provided at the uppermost portion are as described above. At this time, the mounting direction is such that the fastening hole portion is oriented to fasten the longitudinal wire rope 4.

The structure and installation method of the end portion buffer type wire rope fastening device 2 provided at the left end portion are as described above. At this time, the direction is oriented so that the fastening hole portion engages the transverse wire rope (4).

In addition, although the example of the left side corner portion is described in the illustrated embodiment, the structure and the installation method of the end portion buffer type wire rope fastening device 2 are as described above even when installed on the right corner. At this time, the direction is oriented so that the fastening hole portion engages the transverse wire rope (4).

On the other hand, the buffer type wire rope fastening apparatus 1 is provided with a first wire rope 4 or a second wire rope 4 connected to the lower end portion of the wire rope 4, The assembly hole 11 having the fastening hole portion 110 and the second fastening hole portion 113 is disposed in such a direction that the assembly hole 11 can be fastened to the longitudinal wire rope 4.

Likewise, in the end portion of the lateral wire rope 4 provided at the right side portion, a first wire rope 4 or a first wire rope 4 is provided at the right end portion of the wire rope 4, The assembly hole 11 having the fastening hole portion 110 and the second fastening hole portion 113 is arranged in a direction in which the assembly wire 11 can be fastened to the transverse wire rope 4.

The crossover assembly 3 is not configured to be fixed to the rock such as an anchor bolt or a rock bolt but is configured only for cross-linking only the longitudinal and transverse unit wire ropes 4.

As shown in the figure, the structure of the cross assembly 3 is composed of a lower assembly 31 and an upper assembly 32. The lower assembly 31 is provided with a unitary wire rope 4 A plurality of fastening holes 312 for fastening the crossing groove 311 to the upper assembly opening 32 are formed. A plurality of fastening holes 322 are formed in the upper assembly 32 for fastening the lower assembly 31 to the intersecting grooves 321 for mounting the wire ropes 4 in the longitudinal and transverse directions.

When the longitudinal and transverse unit wire ropes 4 continuous to the cross-shaped cross grooves 311 and 321 formed in the lower assembly 31 and the upper assembly 32 are positioned, When the bolts 33 are passed through the fastening holes 312 and 322 formed in the upper assembly opening 32 and then fixed with the nuts 34 at the other side, the crossing assembly 3 is completed, The direction unit wire rope 4 is firmly fixed and bound.

FIG. 12 is an exemplary view showing another detachable rockfall preventing network structure connected to a detachable rockfall preventing network structure according to an embodiment of the present invention. FIG.

The detachable fall prevention network structure shown in FIG. 7 is constructed such that the longitudinal and transverse unit wire ropes 4 are bound by the buffered wire rope fastening apparatus 1 and the cross assembly 3 shown in FIG. 7, The crossing points between the longitudinal and transverse unit wire ropes 4 cut into a predetermined length as shown in the drawing showing the detachable rockfall preventing network structure installed are the same as those in the crossing assembly 3, 4 are different from each other only in the longitudinal direction and the transverse direction at the same time with the buffered wire rope fastening device 1 only. By having such a configuration, necessary construction sites can be easily connected and increased.

At this time, the buffer type wire rope fastening apparatus 1 connects the additional wire rope 4 adjacent to the upper or lower portion to the upper and lower ends of the unit wire rope 4 or wire rope 4 installed in the longitudinal direction, respectively. The assembly hole having the first fastening hole portion 110 and the second fastening hole portion 113 is arranged in a direction in which the assembly wire can be fastened to the longitudinal wire rope 4.

Likewise, the left or right end of the transverse wire rope 4 is provided with a unit wire rope 4 or a wire rope 4 for connecting the additional wire rope 4, which is laterally adjacent to the left or right end of the wire rope 4, The first fastening hole portion 110 and the second fastening hole portion 113 are arranged in a direction in which they can be fastened to the transverse wire rope 4.

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): Buffered wire rope fastening device
(2): end buffer type wire rope fastening device
(3): Cross assembly (4): Wire rope
(5): Main anchor bolt part (6):
(11): Assembly port (12): Buffer tightening part
(13): a pressure plate (14): a lock bolt part
(21): Assembly port (22): Buffer tightening part
(24): Lock bolt (31): Lower assembly
(32): upper assembly (33): bolt
(34): Nut (51): Main anchor bolt
(52): bolt holes (111, 114): holes
(112, 115): support groove (110): first fastening hole portion
(113): second fastening hole portion (116): bottom groove
(117): fixing portion (118): hole
(121): eye bolt (122): coil spring
(123): Nut (141): Lock bolt
(142): nut (210): fastening hole portion
(218): Hole (217): Fixed portion
(221): eye bolt (222): coil spring
(211): Hole (212): Support groove
(223): Nut (241): Lock bolt
(242): Nuts (311, 321): Crossed groove
(312, 322): fastening hole

Claims (10)

A first fastening hole portion and a second fastening hole portion formed on different axes for fastening respective one ends of the one-way wire rope, a lower groove for fastening the other-direction wire rope crossing the one-way wire rope, And a fixing part formed between the second fastening hole part and the locking bolt penetrating hole fixed to the rock plate;
A cushioning fastening portion fastened to one end of each one-way wire rope in the first fastening hole portion and the second fastening hole portion to provide a tensile force;
A pressure plate installed in the lower part of the lower part of the granulating compartment and having a hole through which the locking bolt passes,
And a locking bolt portion including a locking bolt and a nut for fixing the assembly and the pressure plate to the rock.
The method according to claim 1,
Wherein the first fastening hole portion and the second fastening hole portion of the assembly are formed around holes each having an eye bolt through which the eye bolts of the buffer fastening portions coupled with the one-way wire ropes pass, And a support groove for supporting the wire rope so as not to be detached.
The method according to claim 1,
The first fastening hole portion and the second fastening hole portion are connected to each other at one side end of a non-continuous longitudinal or transverse unit wire rope or wire rope, and the bottom groove is connected to a continuous longitudinal or transverse unit wire rope or wire And the rope is positioned and connected.
The method according to claim 1,
Wherein the buffer fastening part has an eyepiece whose one end is fastened to the unidirectional wire rope and the other end is inserted into each hole formed in the first fastening hole part and the second fastening hole part and threaded on the surface, A coil spring inserted into a support groove formed in the first fastening hole portion and the second fastening hole portion and coupled to the nut at the other end thereof and a nut screwed to the other end of the coil bolt to adjust the tension of the coil spring Characterized in that the wire rope fastening device is a buffered wire rope fastening device.
A plurality of longitudinal and transverse unit wire ropes cut and crossed to a predetermined length so as to press and support the upper portion of the net covering the rock;
A cross assembly for connecting respective intersections between the longitudinal and transverse unit wire ropes;
A buffered wire rope fastening device or an end buffered wire rope fastening device according to any one of claims 1 to 4, provided at an end of each unit wire rope, Type wire rope fastening devices. The wire rope fastening device according to claim 1,
The method of claim 5,
The end portion buffer type wire rope fastening apparatus includes an assembling portion having a fastening hole portion for fastening one end of the one-way wire rope and a fastening portion having a hole through which the fastening bolt is inserted, A buffer coupling portion which is fastened to one end of the one-way wire rope to provide a tension; And a locking bolt portion for fixing the assembly to the rock. The wire rope fastening device according to claim 1,
The method of claim 6,
Wherein the fastening hole portion is formed with a hole through which the eye bolt of the shock absorbing fastening portion coupled with the one-way wire rope penetrates, and a support groove formed around the hole and supporting the spring of the shock absorbing fastening portion so as not to be released during compression,
Wherein the buffering fastening part includes an eye bolt having one end fastened to the one-way wire rope and the other end inserted into a hole formed in the fastening hole part and having a screw thread formed on the surface thereof, and one end inserted into the fastening hole formed in the fastening hole part, And the other end is composed of a coil spring coupled to the nut and a nut screwed to the other end of the wire bolt to adjust the tension of the coil spring.
The method of claim 5,
Wherein the cross assembly includes a lower assembly having a plurality of fastening holes for fastening the cross grooves and the upper assembly for longitudinal and transverse unit wire ropes; An upper assembly having a plurality of fastening holes for fastening the cross grooves and the lower assembly to the longitudinal and transverse unit wire ropes; And a bolt passing through each of the fastening holes formed in the lower assembly and the upper assembly, and a nut for fastening the fastening hole to the detachable rockfall preventing structure.
The method of claim 5,
Wherein the unit wire rope is cut to a predetermined length, and eye bolts are fastened to both ends of the unit wire rope.
The method of claim 5,
The end buffering wire rope fastening device is installed at the end of the longitudinal or transverse unit wire rope located at the outer portion of the detachable unitary anti-slip stone network structure located around the outermost periphery of the entire fall-prevention network,
The buffered wire rope fastening device is characterized in that the remaining inner portion of the detachable unitary rockfall prevention network structure provided around the outermost periphery and each end portion of the longitudinal or transverse unit wire rope of the detachable unitary rockfall prevention network structure connected in the inward direction Wherein the wire rope fastening device is installed on the upper surface of the main body.

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