KR20070069101A - Fixing type nailing apparatus and method of the same - Google Patents

Abstract

An anchor type nailing apparatus is provided to fix a nail to the inside of a slope strongly by making expansion blades spread automatically in an insertion hole formed on a slope. The anchor type nailing apparatus(30) comprises an anchorage(200) provided with a through hole(202) formed in a longitudinal direction of a body(210) and a female screw(204) formed on the inner circumferential surface of the through hole to couple with a male screw(104) formed on the outer circumferential surface of a body(102) of a fixture, many expansion blades(300) coupled to the bottom of the body at an angle of 120 degrees and spread with restoring force of a spring when the anchor type nailing apparatus reaches to an inner fixing groove via an insertion hole formed on a slope, and a fixture(100) inserted to the through hole of the anchorage and provided with many nail coupling projections(106) to fix a nail(32) not to be separated from the inside of the anchorage.

Description

FIXING TYPE NAILING APPARATUS AND METHOD OF THE SAME}

1 is a perspective view showing a configuration of a slope reinforcement work nail structure according to an embodiment of the present invention,

Figure 2 is a state diagram showing the mounting process of the slope reinforcement work nail structure according to an embodiment of the present invention,

Figure 3 is an exploded perspective view showing the configuration of the anchoring nailing device according to an embodiment of the present invention,

Figure 4 is an exploded perspective view of the main portion of the fixing fixture of the anchoring nailing device according to an embodiment of the present invention,

Figure 5 is a side cross-sectional view showing the configuration of a fixing nailing device according to an embodiment of the present invention,

Figure 6a, 6b, 6c is a state diagram showing the mounting process of the anchoring nailing device according to an embodiment of the present invention.

* Explanation of symbols for main parts of drawings *

32: nail, 100: fixture,

200: anchoring hole, 202: through hole,

206: extension blade coupling groove, 300: extension wing,

302: support plate, 306: connecting rod.

The present invention relates to a fixable nailing device and a construction method thereof, in which the nail is firmly mounted on the inside of the slope by an extension blade automatically unfolded while being inserted into the insertion hole drilled on the slope in a state where the nail is fixed inside. The present invention relates to a fixing nailing device and a construction method thereof that can be fixed.

As is well known, as the industry develops, it is inevitable to develop slopes such as mountain roads such as foundation roads and complexes, and the sliding reality of slopes is constantly occurring regardless of time and place, threatening life and property. It acts as a peripheral element.

For this reason, the soil-nailing method is most widely used as a stabilization method for suppressing the collapse and sliding of the slope.

Here, the soil nailing is to install a reinforcing material (nail structure) on the ground to form a composite reinforcement while maximizing the strength of the ground, thereby increasing the shear and tensile strength of the ground to suppress displacement and to prevent ground loosening It is a construction method.

In other words, the basic design concept of the soil nailing method is that the ingot of the area reinforced by the nail structure maintains stability on any slope that the reinforced earth wall can assume by acting as an integrated retaining wall. .

Such small nailing has been used for temporary earthquake structures, foundation burrows, etc., but in recent years, its application has been expanded to include slope reinforcement of roads, rock reinforcement of railways, dams, and tunnel shafts.

However, this small nailing is a combination of rock, which is designed to be useful for soil, and the rock structure of various slopes is different from soil, and the rock has a lot of joints, rock with many joint layers, and heat deterioration under the influence of monolayer. Many slopes, such as rocks separated from the mother rock due to the development of discontinuities due to the blasting, are unstable in structure, so reinforcing the rock slopes using only existing nail structures has a problem that can be followed.

Therefore, recently, a technology (patent registration number: 10-448039) that has been patented and registered under the name of a small nail structure for slope reinforcement and its method has been developed.

Referring to Figures 1 and 2, the prior art described above, the conventional invention is to form a punching hole (1) on the slope through a perforator, the anchor body including a nail (5) and the anchor blade (2) Insert the nail (5) screwed (3) into the drill hole (1), then rotate the nail (5) with a rotary tool to advance the tapered body (4) by the tightening force with the anchor body (3) anchor After the anchor blade (2) is fixed to the birthmark by expanding the blade (2), in the soil nailing method for slope reinforcement for performing grouting, the tip of the nail (10) is inserted into the anchor body (12) and then anchor body In 12, the nail 10 is temporarily fixed to prevent the separation of the nail 10 and inserted into the drilling hole 1, and then hit the rear end of the nail 12 with a punch used to form the drilling hole 1. Drive the anchor blade (2) by expanding the anchor blade (2) by advancing the tapered body (4) with a striking force. After settling in a van, the soil nailing method for slope reinforcement work, characterized in that the grouting is performed.

The conventional invention for this purpose provides a small nail structure for slope reinforcement, the present invention is a nail (5) formed with a pressing screw surface 8 and the tapered body (4) and the pressing screw surface (fitted to the nail 5) 8) A nail anchor for a slope reinforcement worker comprising an anchor body (3) having an anchor blade (2) extended by the tapered body (4) which is advanced by a screwing force as well as screwed together, and tapered by the impact force of the punching machine. The anchor body (12) includes an anchor body (12) having a through hole (14) formed therethrough so that expansion of the anchor blade (2) in accordance with advancement of the body (4) and a forward distance providing at least an extension of the anchor blade (2). 12 of the nail 10 in the anchor body 12 by being coupled with the anchor body 12 by being coupled to the tip of the insertion protrusion 16 and the insertion protrusion 16 having a protruding length penetrating through the anchor body 12; Consists of a breakaway prevention mechanism (18) to prevent departure A surface for building reinforced soil structure four days.

Here, the departure prevention tool 18 is characterized in that the pin hole 20 is formed at the tip of the nail 10 and the pin 20 is coupled thereto so that the nail tip and the anchor body interfere with each other.

However, the conventional invention has to taper the front end of the nail 10, so that a general nail cannot be used, and a nail that can be used exclusively for the conventional invention must be specially manufactured, and a nail for manufacturing such a special nail Since there is a need for a mold and a separate manufacturing cost is generated, there is a problem in that it is economically disadvantageous.

In addition, the conventional invention has a problem that a separate tapered body (4) for opening the anchor blade (2) provided in the anchor body 12 has to be manufactured.

In addition, the conventional invention requires a separate hitting device for imparting a hitting force to the rear end surface of the nail 10, which is also economically disadvantageous, as well as the problem that can not raise the hitting device on the high slope There was this. If the mobilization of a separate crane device to raise the striking device high, the striking device requires a separate support configuration to cope with the reaction force due to the impact, but this was a problem that impossible configuration.

The present invention has been made in view of the above-described prior art, and in the state where a fixing groove having a diameter larger than the diameter of the insertion hole is formed at the inner end of the insertion hole into which the nail is inserted, the extension of the anchorage inserted into the insertion hole is expanded. Due to the state in which the blade is in close contact with the inner circumference of the insertion hole, the blade is inserted with the extension blade folded in response to the spring force of the expansion blade, and the extension blade is automatically extended by the elastic force of the spring to reach the position of the fixing groove so that the inner side of the fixing groove It is an object of the present invention to provide a fixing nailing device and a construction method for fixing the fixing fixture firmly to the end.

In order to achieve the above object, according to a preferred embodiment of the present invention, in a state in which the insertion hole is formed on the slope through a perforator, in the fixed nailing device for fixing the nail inside the insertion hole, the inside A body having a through-hole formed in the longitudinal direction thereof, the lower end of the body being provided with a plurality of expansion wings, and a fixing member having a spring interposed between the expansion wing and the body; In the state in which the nail is accommodated therein, there is provided a fixable nailing device comprising a fixture which is inserted into a through hole inside the anchorage to fix the nail so as not to be separated from the anchorage.

Preferably, the fixing device is provided with a fixed nailing device, characterized in that the front end diameter is smaller than the rear end diameter is formed to be easily inserted into the insertion hole.

Preferably, the fixing unit is provided with a fixed nailing device, characterized in that the expansion blade coupling groove is formed to insert a portion of one end of the extension blade in the predetermined portion of the body portion of the rear end portion.

Preferably, the extension wing coupling groove is provided with a fixed nailing device, characterized in that formed by each divided by 120 degrees along the outer periphery of the body rear end of the anchorage.

Preferably, the fixing unit is provided with a fixing nailing device, characterized in that the pin insertion hole is formed to insert a pin for rotatably coupling one end of the expansion blade to the predetermined portion of the body.

Preferably, the fixing member is provided with a female screw formed on the inner circumference of the through hole, and a male screw is formed on the outer circumference of the fixing member so as to correspond to the female screw.

Preferably, the fixing device is provided with a fixing nailing device characterized in that the separation prevention jaw is formed to prevent the fixing unit is separated from the inner peripheral lower end of the through-hole.

Preferably, the extension blade has a narrow width of the connecting rod is formed on the upper end, a wide width of the support plate is formed on the lower end, the fixed nailing, characterized in that the coupling portion is formed with a spring coupling groove An apparatus is provided.

Preferably, the lower end of the support plate of the extension blade is provided with a fixed nailing device, characterized in that made of a sharp inclined surface so as to be fixed while the expansion blade is embedded in the wall of the fixing groove formed on the slope.

Preferably, the fastener is provided with a fixed nailing device, characterized in that two minutes in the longitudinal direction for engaging the nail laterally at the outer periphery of the nail.

Preferably, the fastener is provided with a fixed nailing device, characterized in that a plurality of nail engaging jaw for coupling the nail to the fixture on the inner circumference is formed in the longitudinal direction.

On the other hand, the present invention is the process of fastening the fastener to the predetermined portion of the outer periphery of the nail; Inserting and fixing a fixture to which a nail is fastened in the fixing unit body; Completing the assembly of the anchoring nailing device by retracting the extension blades of the anchorage; Inserting the anchoring nailing device into an insertion hole formed on a slope; The anchoring nailing device reaches an internal fixing groove formed at the rear end of the insertion hole, and the extension blade is unfolded; Performing a grouting process of injecting cement sludge from the internal fixing grooves; In the state where the extension blade is fixed to a predetermined portion of the inner fixing groove, pressing the draw out to the outside of the insertion hole to apply a tensile force to the nail; A process of applying a repulsive force to a tension force applied to the nail in a direction opposite to that of the nail by fixing the anchorage; In the state in which a repulsive force is applied to the nail, injecting grouting into the insertion hole to complete grouting construction; There is provided a fixed nailing construction method comprising the process of fixing the nail by installing a plate at the inlet of the insertion hole.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to drawings.

Figure 3 is an exploded perspective view showing the configuration of the anchoring nailing device according to an embodiment of the present invention, Figure 4 is an exploded perspective view of the main portion of the anchoring device of the anchoring nailing device according to an embodiment of the present invention, Figure 5 is a side cross-sectional view showing the configuration of a fixable nailing device according to an embodiment of the present invention.

Referring to this, the anchoring nailing device 30 according to an embodiment of the present invention is inserted in a state in which a fixing groove having a diameter larger than the diameter of the insertion hole is formed at the inner end of the insertion hole into which the nail is inserted. Due to the state that the extension blade of the anchorage inserted into the ball is in close contact with the inner circumference of the insertion hole, it is inserted with the extension blade folded in response to the spring force of the expansion blade, and reaches the position of the fixing groove automatically by the elastic force of the spring. It is a device that is fixed to the fixing unit firmly to the inner end of the fixing groove.

In more detail, the anchoring nailing device 30 according to an embodiment of the present invention is largely provided with a body 210 having a through hole 202 formed therein in a longitudinal direction thereof, and of the body 210. A plurality of extension blades 300 are provided at the bottom, and a fixing unit 200 having a spring 312 interposed between the extension blades 300 and the body 210 is provided.

In addition, in the fixing nailing device 30 according to an embodiment of the present invention, the nail 32 is inserted into the through hole 202 inside the fixing unit 200 in a state where the nail 32 is accommodated therein. Fixture 100 is provided to fix it so as not to be separated from the fixing unit 200.

At this time, the anchorage 200 is formed so that the diameter of the front end portion of the body 210 is smaller than the diameter of the rear end portion so as to be easily inserted into the insertion hole 40 (see FIG. 6A) of the birthmark formed on the slope. That is, the body 210 is formed in the shape of a warhead of the missile can be easily inserted into the insertion hole 40 formed in the birthmark.

In addition, the anchorage 200 has an extension blade coupling groove 206 is formed to partially insert one end of the extension blade 300 into the predetermined portion of the rear end of the body 210 in a predetermined portion of the body 210. .

That is, the fixing unit 200 is divided into every 120 degrees along the outer periphery of the rear end of the body 210, the extension blade coupling groove 206 is formed, looking at the fixing unit 200 in plan view The extension blade 300 is coupled in the 120 degree direction.

In addition, the fixing unit 200 is configured to couple one end of the extension blade 300 to a predetermined portion of the body 210 to be rotatable by a pin (not shown), the pin insertion hole 208 is inserted into the pin ) Is formed around the body 210 of the anchorage 200 in which the extension blade coupling groove 206 is formed.

On the other hand, the anchorage 200 has a female screw 204 is formed on the inner circumference of the through hole 202, the male screw 204 on the outer circumference of the body 102 of the fixture 100 to correspond to the female screw 204 ( 104 is formed.

That is, the fastener 100 is fastened to the through-hole 202 formed in the anchorage 200 by screwing, the fastener 100 has a length of about 7 cm, the through-hole 202 The inner periphery is formed with a plurality of female threads having a length of about 7 cm, the fixing portion 100 is formed with a plurality of male threads on the outer periphery, the fastener 100 is the through hole 202 The fastener 100 is firmly fixed to the inside of the fixing unit 200 by being rotated to the fastener 100.

In addition, in the state in which the fastener 100 is fastened to the fixing unit 200, the pulling hole 100 is not separated from the inside of the fixing unit 200 even when the fixing unit 100 is pulled out. At the lower end portion of the inner circumference of 202, a separation preventing jaw 212 is formed to prevent the fixture 100 from being separated.

On the other hand, the extension blade 300 has a narrow width at the upper end, a connecting rod 306 is inserted into the expansion blade coupling groove 206 is formed, the lower end of the wide support plate 302 is The spring coupling groove 310 is formed in a predetermined portion of the connecting table 306.

At this time, the extension blade 300 is composed of a sharp inclined surface 304 to be fixed while the support plate 302 is fixed to the wall of the fixing groove 42 (see Fig. 6a) formed on the slope of the lower end of the support plate 302. .

Preferably, the fixture 100 is the body 102 is formed in pieces divided into two each in the longitudinal direction to couple the nail 32 laterally at the outer periphery of the nail 32, the fixture 100 ) Is coupled to the main portion of the nail 32 on its inner circumference is formed a plurality of nail coupling jaw 106 in the longitudinal direction for coupling the nail 32 to the fixture 100.

That is, the nail 32 is a bar 36 is formed at a predetermined interval on the outer periphery of the rod-shaped body 34, the bar is formed in the periphery of the protrusion 36 due to the protrusion, The fastener 100 is provided with a plurality of nail engaging jaw 106 in the longitudinal direction corresponding to the main portion of the nail 32, in order to secure the nail 32 to its inner circumference.

Preferably, the inner surface of the support plate 302 of the extension blade 300 is formed with a critical tip 308 in the width direction, the extension blade 300 is the extension blade coupling groove 206 of the anchorage 200 In the state coupled to the inside of the anchorage 300, when folded in the direction of the elastic tip of the spring 312 because only the critical tip portion 308 is in line contact with the inner wall of the expansion blade coupling groove 206 It can be easily unfolded in the surface contact state.

With reference to the accompanying drawings, the function and action of the anchoring nailing device according to an embodiment of the present invention of the above configuration will be described in detail.

Figure 6a, 6b, 6c is a state diagram showing the mounting process of the anchoring nailing device according to an embodiment of the present invention.

First, in order to nail the ball through the fixed nailing device 30 according to an embodiment of the present invention, the fixed nailing device 30 must be assembled first. The assembly of the fixed nailing device 30 may be performed outdoors.

Before assembling the fixable nailing device 30, the insertion hole 40 into which the fixable nailing device 30 is to be inserted is drilled in the birthmark of the slope using a perforator, and the inner side of the insertion hole 40 is installed. Silver allows the internal fixing groove 42 of a diameter larger than the diameter of the insertion hole 40 to be drilled.

In this state, assembling of the anchoring nailing device 30, first, the fastener 100 must be fastened to a predetermined portion of the outer circumference of the nail 32. Since the fastener 100 is divided into two parts in the longitudinal direction, when the two fasteners 100 are in close contact with a predetermined portion of the outer circumference of the nail 32, the fastener 100 and the nail 32 are coupled to each other.

At this time, the fastener 100 has a plurality of nail coupling jaw 106 is formed in the longitudinal direction on the inner periphery, the nail coupling jaw 106 is coupled to the recess formed between the projections 36 of the nail 32 It is fixed to the outer periphery of the nail (32).

In the state that the nail 32 is coupled to the fixture 100, the fastener 100 is inserted into the inner through hole 202 of the main assembly body 210 and fastened.

In that state, assembling the anchoring nailing device is completed by retracting the extension blade 300 of the anchorage 200.

Then, the fixing nailing device 30 is inserted into the insertion hole 40 formed on the slope. At this time, the insertion hole 40 is to be perforated to have a diameter slightly larger than the diameter of the anchoring nailing device 30, the extension blade 300 in a folded state when passing through the insertion hole 40 Will pass.

Then, when the anchoring nailing device 30 passes through the insertion hole 40 and reaches the inner fixing groove 42 therein, the extension blade 300 is unfolded by the restoring force of the spring 312. do.

In that state, grouting is performed to inject cement sludge from the inner fixing groove 42, and the nail 32 is fixed in a state where the extension blade 300 is fixed to a predetermined portion of the inner fixing groove 42. The drawing force is applied to the outside of the insertion hole 40 to apply a tensile force to the nail 32.

Then, by fixing the fixing device 200, the repulsive force against the tensile force applied to the nail 32 is applied in the opposite direction of the pull out of the nail 32, in the state in which the repulsive force is applied to the nail 32, The grouting is injected into the ball 40 to complete the grouting construction.

Then, the nail 32 is fixed by installing a plate (not shown) at the inlet of the insertion hole 40.

On the other hand, the anchoring nailing device and the construction method according to an embodiment of the present invention is not limited to the above embodiments, but various modifications can be made within the scope without departing from the technical gist.

As described above, the fixed nailing device and the construction method according to the present invention is economically advantageous and construction because the fixed nailing device is automatically unfolded when reaching the inner fixing groove of a wider diameter without applying an external force This is easy. In addition, there is an advantage that it is economically advantageous because the number of accessory parts can be minimized.

Claims (12)

In the fixing nailing device for fixing the nail inside the insertion hole in the state formed in the insertion hole through the perforator, A body having a through-hole formed in the longitudinal direction therein, the lower end of the body having a plurality of expansion wings, and a fixing member having a spring interposed between the expansion wing and the body; Fixing nailing device, characterized in that made in the state in which the nail is accommodated therein, is inserted into the through hole in the fixing unit to fix the nail not to be separated from the inside of the fixing unit. The anchoring nailing device of claim 1, wherein the fixing unit has a front end diameter smaller than a rear end diameter and is easily inserted into the insertion hole. The anchoring nailing device of claim 1, wherein the fixing tool has an extension blade coupling groove formed to partially insert one end of the extension blade into a predetermined portion of the rear end portion of the fixing portion. The anchoring nailing device of claim 3, wherein the extension wing coupling grooves are divided and formed every 120 degrees along the outer circumference of the body rear end of the anchorage. The anchoring nailing device of claim 1, wherein a pin insertion hole is formed to insert a pin for rotatably coupling one end of the extension blade to a predetermined portion of the fixing tool. 2. The anchoring nailing device according to claim 1, wherein the fixing tool has a female thread formed at an inner circumference of the through hole, and a male thread is formed at an outer circumference of the fastener so as to correspond to the female screw. The anchoring nailing device of claim 1, wherein the fixing tool has a release preventing jaw formed at the lower end of the inner circumference of the through hole to prevent the fixing tool from being separated. 2. The fixing blade of claim 1, wherein the extension blade is formed with a connecting rod having a narrow width at its upper end, a supporting plate having a wide width at its lower end, and a spring engaging groove formed at a predetermined portion of the connecting rod. Expression nailing device. The fixing nailing device of claim 8, wherein the lower end of the support plate of the extension blade has a sharp inclined surface so as to be fixed while being inserted into the wall of the fixing groove formed on the slope. 2. The nailing device of claim 1, wherein the fixture is divided into two lengthwise directions to engage the nail laterally at its outer circumference. According to claim 1, The fastener is fixed nailing device, characterized in that formed in the longitudinal direction a plurality of nail engaging jaw for engaging the nail to the fixture is coupled to the main portion of the nail. Fastening the fastener to a predetermined peripheral portion of the nail; Inserting and fixing a fixture to which a nail is fastened in the fixing unit body; Completing the assembly of the anchoring nailing device by retracting the extension blades of the anchorage; Inserting the anchoring nailing device into an insertion hole formed on a slope; The anchoring nailing device reaches an internal fixing groove formed at the rear end of the insertion hole, and the extension blade is unfolded; Performing a grouting process of injecting cement sludge from the internal fixing grooves; A step in which the nail is pulled out to the outside of the insertion hole while the extension blade is fixed to a predetermined portion of the inner fixing groove so that a tension force is applied to the nail; A process of applying a repulsive force to a tension force applied to the nail in a direction opposite to that of the nail by fixing the anchorage; In the state in which a repulsive force is applied to the nail, injecting grouting into the insertion hole to complete grouting construction; Settling nailing construction method comprising the step of fixing the nail by installing a plate at the inlet of the insertion hole.

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