KR100552461B1 - Structure for protecting and reinforcing slopes using lock volt - Google Patents

Abstract

The present invention relates to a slope protection and reinforcement structure using a rock bolt, and forms a guide hole 111 in the longitudinal direction, forms a plurality of holes in the outer periphery, the body coupled to the cap 112 perforated holes in the front end 110, a fixing part 120 for pre-fastening the cutting blade 121 and the fastener 122 into a hole drilled in the outer periphery of the body 110, and inserted into the guide hole 111 to slide But the operation port 130 and the body (130) protruding the pressure bar 132 toward the front of the cap 112 and formed a cone guide 131 corresponding to the cutting edge 121 and the fixture 122 at the rear end; The main wire 140 is coupled to the rear end of the 110 and the screw cap 141 is coupled to the rear end, and the screw hole 161 is inserted into the rear side of the main wire 140 and installed at the inlet side of the drilling hole. Main wedge 160 perforated to the front of the slope to be coupled to the main wedge 160 to be installed Acupressure plate 170 and protruding outer circumference coupled to the corrugated pipe (173) and the screw projection pipe 171 is formed to be coupled to the screw hole 161 of the main wedge 160, and the acupressure plate 170 And acupressure plate 170 is interconnected but consisting of a wire rope 181 having a turnbuckle 181, regardless of the firmness of the cement mortar filled in the drilling hole, the drawing test is executed immediately and various materials immediately after the cement mortar work By installing structures, etc., it is possible to stabilize the slope firmly and reduce construction period.

Description

Slope protection and reinforcement structure using rock bolts {STRUCTURE FOR PROTECTING AND REINFORCING SLOPES USING LOCK VOLT}             

1 is a perspective view showing the slope protection and reinforcement structure using a rock bolt according to the present invention

Figure 2 is a cross-sectional view showing the slope protection and reinforcement structure using a rock bolt according to the present invention

Figure 3 is an exploded perspective view showing the pressure plate portion of the slope protection and reinforcement structure using a rock bolt according to the invention

Figure 4 is a cross-sectional view showing the state of using the auxiliary wire of the slope protection reinforcement structure using a rock bolt according to the present invention

Figure 5 is an exploded perspective view showing the state of using the auxiliary wire of the slope protection and reinforcement structure using the rock bolt according to the present invention

Figure 6 is a cross-sectional view showing the head portion of the slope protection and reinforcement structure using a rock bolt according to the invention

Figure 7 is a cross-sectional view showing the plate installation state of the slope protection and reinforcement structure using a rock bolt according to the invention

Explanation of symbols of main part of drawing

110: body 111: guide ball

112: cap 113: protrusion

114: ring 120: fixed portion

121: cutting edge 122: fixture

130: operating port 131: cone guide

132: pressure bar 140: main wire

141: screw cap 150: auxiliary wire

151: screw cap 160: main wedge

161: screw hole 162: guide ball

170: pressure plate 171: screw projection tube

172: guide ball 173: corrugated pipe

174: Cap 180: Wire Rope

181: turnbuckle 190: plate

The present invention relates to a slope protection and reinforcement structure using rock bolts, and in detail, to securely reinforce the slopes using rock bolts, and to protect slopes and reinforcement using rock bolts to prevent the collapse of the slope or the occurrence of falling rocks. It's about structure.

In general, rock bolts are a kind of geotechnical method such as underground structures, tunnels, or bolts or roof bolts used therein. It drills a hole in the rock around the tunnel, approximately 36-40 mm in diameter and more than 2 m deep and bolts into the hole. There are two principles of rock bolts. One is that when a rock on the direct ceiling that is easy to separate is strong, the rock bolt is hung on the rock directly. The other is a rock layer that is easy to peel off. It is a combination of several layers that creates a beam or a hammer to support anti-pressure. Based on these two principles, the method of attaching the rock bolt to the rock includes a front end bonding method and a front side bonding method. Based on the bonding method, the two methods are commonly divided into mechanical (wedge), resin and mortar. Rock bolts are used in various types of thickness and length depending on the condition of the rock.

The rock bolt forms a hole in the ground including mountain rock in civil construction work, especially in tunnel work. At this time, a predetermined number of explosives, for example, dynamite, are exploded in the perforated hole to break the rock and widen the base hole of the tunnel. After drilling the foundation tunnel with a certain height and width, in order to prevent the collapse of the foundation tunnel, it puts a lot of rock bolts on the inside of the foundation tunnel, installs mesh mesh of mesh shape, and finally concrete It will be poured to perform reinforcement film construction. This reinforcement film is first drilled into the rock by using a rock drill or a crusher, and then cement cement mortar is inserted into the hole and rock bolt or rock bolt is inserted before cement mortar. When the cement mortar is completely hardened, the rock bolts are firmly fixed in the rock. Here, by installing a plurality of rock bolts at predetermined intervals, the rock bolts sufficiently endure the concrete load sprayed on the mesh body and maintain the fixed state firmly.

However, these conventional rock bolts are sealed with a mortar flow prevention cap, and then cement mortar is placed until the cement mortar is hardened to some extent, and then the rock bolt is firmly fastened to the pressure plate. After 2-3 weeks, the cement is completely mortar hardened. If it is possible to support more than a certain load through the drawing test to install a variety of materials and structures, so not only takes a long period of construction but also had a problem to install a large number of rock bolts to improve the bearing capacity.

In addition, development of structures and construction methods such as protection and reinforcement of various slopes using rock bolts has been continuously required.

Therefore, the main object of the present invention is to install rock bolts on the slopes to execute the drawing test immediately irrespective of the cement mortar firmness and to install various materials or structures immediately after the cement mortar work so that the slopes can be firmly stabilized. At the same time, the construction period can be reduced.

Another object of the present invention is to securely lock the rock bolt to the rock to maximize the bearing capacity of the slope.

Another object of the present invention is to facilitate the installation of rock bolts to smooth the slope protection and reinforcement work.

Slope protection and reinforcement structure using the rock bolt of the present invention to achieve this object is formed with a guide hole in the longitudinal direction and a plurality of holes formed on the outer periphery and the body is coupled to the cap perforated holes in the front end, and Fixing part for pre-fastening the cutting edge and the fixture in the hole perforated on the outer periphery of the body, and inserted into the guide hole to slide, but protrudes the pressure rod in front of the cap and the cone corresponding to the cutting edge and the fixture at the rear end A main wire coupled to the rear end of the body, the main wire coupled to the rear end of the body, and a screw cap coupled to the rear end of the body; The main wedge is installed to protrude forward from the slope to be installed, but the corrugated pipe is connected to the protruding outer circumference and the main wedge But the match interconnecting jiappan, and the jiappan portion which forms a hole that pro consists of a wire provided with a turnbuckle for adjusting it to the basic features on the technical configuration.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention configured as described above are as follows.

1 is an overall perspective view showing a slope protection and reinforcement structure using a rock bolt according to the present invention, Figure 2 is a cross-sectional view showing a slope protection and reinforcement structure using a rock bolt according to the invention, Figure 3 according to the present invention Figure 4 is an exploded perspective view showing the pressure plate portion of the slope protection and reinforcement structure using a rock bolt, Figure 4 is a cross-sectional view showing the use state of the auxiliary wire of the slope protection reinforcement structure using a rock bolt, Figure 5 is in accordance with the present invention 6 is an exploded perspective view illustrating a state of using an auxiliary wire of a slope protection and reinforcement structure using a rock bolt, and FIG. 6 is a cross-sectional view illustrating a head portion of a slope protection and reinforcement structure using a rock bolt according to the present invention, and FIG. Sectional drawing showing plate installation of slope protection and reinforcement structure using rock bolt.

1 to 7, the slope protection and reinforcement structure using the rock bolt of the present invention forms a guide hole 111 in the longitudinal direction, forms a plurality of holes in the outer periphery, and a cap with holes punched in the front end. Body 110 combined with the 112, the fixing portion 120 for pre-fastening the cutting edge 121 and the fastener 122 into the hole drilled in the outer periphery of the body 110, and the guide hole 111 Inserted into the inside of the slide to be protruding the pressure bar 132 in front of the cap 112 and the operating tool (131) formed a cone guide 131 corresponding to the cutting edge 121 and the fixture 122 at the rear end ( 130 and the main wire 140 coupled to the rear end of the body 110 and coupled to the rear end of the main wire 140 and the main wire 140 coupled to the rear end of the main wire 140, but installed at the inlet side of the drilling hole The screw hole 161 is to be installed in combination with the main wedge 160 and the main wedge 160 perforated in the center Acupressure plate 170 is installed to protrude to the front of the slope to be coupled to the corrugated pipe (173) protruding outer periphery and the screw projection pipe 171 is coupled to the screw hole 161 of the main wedge 160, and The acupressure plate 170 and the acupressure plate 170 are connected to each other, and constitute a wire rope 181 having a turnbuckle 181.

The body 110 forms a protrusion 113 at a rear end thereof, and combines the ring 114 having one or more auxiliary wires 150 coupled to the protrusion 113 to idle.

Here, the auxiliary wire 150 is coupled to the screw cap 151 at the rear end, in which case the main wedge 160 and the pressure plate 170 to form a separate guide hole (162, 172) for inserting the auxiliary wire 150, respectively desirable.

The fixing part 120 is preferably formed to be radially extended to the cutting edge 121 and the fastener 122 is formed to be inclined to the rear side to facilitate the locking.

The operating tool 130 is to maintain the state always moved to the front, but when moving to the rear side by hooking the inner end of the perforations so that the cone guide 131 pushes the cutting edge 121 and the fixture 122 outward. .

The main wire 140 and the auxiliary wire 150 is not limited to the wire and may be used by using a pipe or a bar or a mixture thereof.

Furthermore, the main wire 140 and the auxiliary wire 150 may be more firmly fixed by using wedges in the screw protrusion pipe 172 and the guide holes 162 and 172 to be inserted.

The main wedge 160 is formed with a conventional mortar inlet or the like.

Further, it is preferable to form the guide hole 162 in the main wedge 160 to insert the auxiliary wire 150.

The acupressure plate 170 forms a screw protrusion 171 for fastening to the screw hole 161 of the main wedge 160 and forms a guide hole 172 for inserting the auxiliary wire 150.

In addition, it is preferable to combine the cap 174 to protect the main wire 140 and the auxiliary wire 150 on the surface of the pressure plate 170.

The wire rope 180 preferably connects the pressure plate 170 protruding from the slope, but installs the wire rope 180 tightly using the turnbuckle 181.

Here, the wire rope 180 is installed in a horizontal line, vertical line, or diagonal line and a mixture thereof, so as to be caught by the screw projection pipe 171 of the acupressure plate 170 fixed by drilling a hole in the outer periphery of the corrugated pipe 173. It is preferable to.

Further, the interior of the corrugated pipe 173 is to finally fill the cement mortar after the filling of the cement mortar into the perforation hole.

The present invention may be installed to cover the rockfall prevention net on the slope to maximize the effect.

On the other hand, the wire rope 180 may be installed in two strands in parallel and coupled to the bent plate and spray shotcrete on the surface to further firmly support the slope.

Referring to the operation of the present invention as follows.

Drill a hole in the slope and cover the rockfall prevention net on the surface and then insert the rock bolt 10 in the hole and combine the main wire 140 of the rock bolt with a rock drill or crusher.

In this state, a rock drill or a crusher is operated to rotate the rock bolt while pressing the inside of the hole.

At this time, the pressure bar 132 of the operation port 130 protruding toward the front of the body 110 is caught by the bottom of the drilling hole and pushed to the rear side, so that the cone guide 131 formed on the lower side of the pressure bar 132 is a cutting edge ( The cutting edge 121 and the fixture 122 are rotated outwardly while pressing the 121 and the fixture 122 to release the pre-tightening state.

Therefore, the cutting edge 121 cuts the rock at the inner circumference of the drilling hole to form a locking jaw, and the cutting edge 121 and the fixture 122 are firmly caught therein.

That is, since the cutting edge 121 forms a locking step in the drilling hole and the cutting edge 121 and the fastener 122 are firmly caught in the locking step, the lock bolt is perfectly fixed.

Meanwhile, the auxiliary wire 150 is not twisted because the ring 114 is idling.

In this state, the rock bolt will never exit the drill hole unless the rock is collapsed or damaged itself, so that the rock bolt can be firmly fixed at the same time as the rock bolt is installed.

When the fixing of the lock bolt is completed, the main wire 140 and the auxiliary wire 150 are coupled to the screw hole 161 and the guide hole 162 while coupling the main wedge 160 to the front end of the drilling hole.

Further, the screw protrusion pipe 171 of the pressure plate 170 is coupled to the screw hole 161 of the main wedge 160 while the corrugated pipe 173 is in close contact with the pressure plate 170.

Therefore, the corrugated pipe 173 is pressed between the pressure plate 170 and the slope to form a closed space.

Here, after the installation of the shiatsu plate 170 and the corrugated pipe 173, the wire rope 180 may be coupled to the screw protrusion pipe 171, but when the pressure plate 173 and the corrugated pipe 173 are installed, the screw protrusion pipe 171 may be set. Take the wire rope 180) and then adjust it with a turnbuckle 181.

Pulling the main wire 140 and the auxiliary wire 150 in such a state, while performing the drawing test, and tighten the nut to securely lock the lock bolt to the pressure plate 170.

When the lock bolt is completely fixed, the turnbuckle 181 is adjusted to tighten the wire rope 180, and then combine the bent plate 190 made of EX metal with the shotcrete to finish the spray.

On the other hand, the filling of cement mortar in the perforated hole or corrugated pipe may be filled at a convenient time, such as after fixing the rock bolt, after the installation of the main wedge 160, or after the installation of the pressure plate 170, for fixing the rock bolt.

As described above, the slope protection and reinforcement structure using the rock bolt of the present invention forms a guide hole 111 in the longitudinal direction, and forms a plurality of holes in the outer periphery, the hole 112 perforated hole in the front end The combined body 110, the fixing portion 120 for pre-fastening the cutting edge 121 and the fastener 122 into a hole drilled in the outer periphery of the body 110, and the inside of the guide hole 111 Inserted to be sliding but the protrusion 130 protrudes the pressure bar 132 in front of the cap 112, and the operation port 130 formed a cone guide 131 corresponding to the cutting edge 121 and the fixture 122 at the rear end, The main wire 140 is coupled to the rear end of the body 110, but coupled to the rear end of the main wire 140 and the screw hole 161 is coupled to the rear end of the main wire 140, but installed on the inlet side of the drilling hole (161) The main wedge 160 perforated in the center, and the company to install in combination with the main wedge 160 Acupressure plate 170 is installed to protrude to the front of the surface coupled to the corrugated pipe (173) protruding outer periphery and the screw projection pipe 171 is coupled to the screw hole 161 of the main wedge 160, and the Since the pressure plate 170 and the pressure plate 170 are interconnected and constituted by a wire rope 181 having a turnbuckle 181, the drawing test is executed immediately and irrespective of the firmness of the cement mortar filled in the drilling hole. Immediately afterwards, various materials or structures are installed so that the slope can be firmly stabilized and the construction period can be reduced.

Claims (3)

The slope protection and reinforcement structure using the rock bolt forms a guide hole 111 in the longitudinal direction, forms a plurality of holes in the outer periphery, and combines the body 110 with the cap 112 drilled in the front end, Fixing part 120 for pre-fastening the cutting edge 121 and the fastener 122 into a hole drilled on the outer periphery of the body 110, Inserted into the guide hole 111 to be slid, but protrudes the pressure bar 132 in front of the cap 112 and at the rear end of the cone guide 131 corresponding to the cutting edge 121 and the fixture 122 The formed working port 130, The main wire 140 is coupled to the rear end of the body 110, but coupled to the rear end of the main wire 140 and the screw hole 161 is coupled to the rear end of the main wire 140, but installed on the inlet side of the drilling hole (161) Main wedge 160 perforated in the center, It is installed to protrude to the front of the slope to be coupled to the main wedge 160, the screw projection pipe coupled to the screw hole 161 of the main wedge 160 is coupled to the corrugated pipe (173) protruding outer periphery ( Acupressure plate 170 for forming a projection 171 to form a slope, and Slope protection and reinforcement structure using a rock bolt, characterized in that consisting of a wire rope 181 provided with a turnbuckle 181 interconnecting the acupressure plate 170 and the acupressure plate 170. The method of claim 1, The body 110 is a slope using a rock bolt, characterized in that to form a protrusion 113 at the rear end and coupled to rotate the ring 114, which is coupled to one or more auxiliary wires 150 to the protrusion 113 is idle. Protection and reinforcement structure. The method of claim 1, The wire rope 180 is installed in two strands parallel to the slope protection and reinforcement structure using a rock bolt, characterized in that configured to support the slope more firmly by spraying shotcrete on the surface by combining the plate bent here.

Images