KR100216125B1 - Underground anchor pile and process for constructing the same - Google Patents

Abstract

The present invention relates to an underground anchor pile embedded in the ground and a construction method thereof; To make use of the deformed steel bar used in the construction of the structure as a buried steel bar, and to allow the end of the buried steel bar to directly reach the end of the ground freely, so that it can play a structural role as a support pile as well as a friction pile. ; The construction of the technique is coupled to the both sides from the outer surface of the embedded steel bar 10 and the embedded steel bar 10 having a shape of a deformed steel reinforcing ribs 11 are integrally projected at regular intervals in a predetermined shape to the outer periphery. It consists of a pair of fixing hardware (20) having an inner short deformation of the half-winding cylinder type, and fixing nuts (30) for fixing the fixing hardware (20) to the buried steel bars, and in the construction site Fabricate underground anchor piles by assembling the respective members, form pile holes p to a predetermined depth, and then install the underground anchor piles having grout hoses h mounted therein. Inserting, injecting grout into the pile hole p through the grout hose h, and completing the method of fixing the pressure plate b after the injected grout has cured; It is to increase the stability and frictional support of rock and soil during the construction of various structures.

Description

Geo-Anchor Pile and Construction Method

Figure 1a is a front view of the embedded steel bar according to the present invention

FIG. 1B is a cross-sectional view taken along the line I-I of FIG. 1A

Figure 2a is a perspective view of the fixing hardware according to the present invention

FIG. 2b is a front elevational view of the fixing fixture of FIG.

2c is a plan view of the fixing fixture of FIG.

Figure 2d is a cross-sectional view of the combined state of the buried steel bar and the fixing steel according to the present invention

3a is a perspective view of a fixing nut according to the present invention

FIG. 3b is a longitudinal sectional view of the fixing nut of FIG.

4 is a cross-sectional view illustrating a state in which two buried iron rods are connected according to the present invention

5 is an exploded perspective view of an example in which the secondary fixing hardware according to the present invention is coupled to the buried steel bar

6 is an exploded perspective view of an example in which the lower cap according to the present invention is coupled to the buried iron bar

7a to 7e is an exemplary view of the construction method of underground anchor pile according to the present invention

* Explanation of symbols for main parts of the drawings

10: buried iron bar 11: reinforcing rib

12: side groove 20: fixing hardware

21: rib groove 22: fixing protrusion

23: fixing screw part 24: protrusion hump

30: fixing nut 33: female thread groove

40: auxiliary fixing hardware 41: attachment hole

42: protruding hardware 43: protruding screw portion

50: lower cap 55: groove

d: deformed steel bar h: grout hose

p: pile hole b: pressure plate

[Industrial use]

The present invention is an underground anchor pile and its construction that can effectively increase the buried depth or frictional support of the buried steel bar buried in the ground, and also to effectively increase the restraint or pile support for rock and soil collapse It is about a method.

[Private Technology]

Various kinds of underground anchor pile methods have been known and used in the related art for the stability of rock and soil and for increasing frictional support during construction of various structures.

These conventional underground anchor pile methods have been known and used under the names such as soil railing method, Rock Bolt method, NATN method, earth anchor method, RocK Anchor method. These methods have their own effects on the stability of rock and soil unstable during construction of various structures, and the increase of frictional support.

[Problems with Prior Art]

However, in the conventional methods, first, since the use of specially embedded burrs are carried out to carry out the methods, the manufacturing cost of the burrs is increased and the overall cost of construction is increased. Since the depth of the buried is determined according to the length limit, and the end part cannot be supported until the solid ground end, it can only play a role as a friction pile but cannot expect a role as a support pile.

[Purpose of invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an underground anchor pile and a construction method thereof, which can reduce the cost required for the separate production of embedded steel bars by using a deformed steel bar widely used in the construction of a structure.

Another object of the present invention is to use the buried steel bar freely to use the underground anchor pile and its construction method to be able to play the structural role as a support pile, as well as the friction pile by allowing the end portion to reach the ground end directly. To provide.

[Configuration of Invention]

Hereinafter, the technical configuration of the present invention in detail.

The underground anchor pile of the present invention is a buried steel bar 10 having a shape of a deformed reinforcing bar in which the reinforcing ribs 11 are integrally protruded at predetermined intervals in a predetermined shape on the outer circumferential surface thereof, and both sides from an outer surface of the buried iron bar 10. It consists of a pair of fixing hardware 20 having a semi-cylindrical inner short deformation so as to be coupled to, and fixing nuts 30 for fixing the fixing hardware 20 to the buried iron bars. The fixing steel 20 has rib grooves 21 in which the reinforcing ribs 11 are accommodated, and fixing screws 23 are formed at upper and lower ends thereof, and fixing nuts 30 are formed on the inner surface thereof. ) Have a technical configuration in which an internal thread groove 33 screwed with the fixing screw portion 23 is formed on an inner surface thereof.

The underground anchor pile of the present invention configured as described above has the advantage that, firstly, since the use of a deformed steel bar widely distributed in the market as the embedded steel bar 10, no extra cost is required for the production of the embedded steel bar, and second, the semi-cylindrical Since the pair of fixing steels 20 having an inner short shape are fixed as fixing nuts 30 and fixed to the outer surface of the embedded steel bar 10, the installer may fix the fixing steel 20 at any position of the embedded steel bar 10. ) Has the advantage that can be installed freely, and third, by using the deformed reinforcement bars using the fixing hardware 20 and the fixing nut 30 can be used to easily increase the overall length of the buried steel bar (10) at the construction site Has

Hereinafter, the present invention will be described in more detail with reference to the following examples.

Embodiments of the present invention shown in Figures 1a to 6 also includes a buried steel bar 10 having a shape of a deformed reinforcing bar reinforcing the reinforcing ribs 11 integrally at regular intervals in the predetermined shape of the outer peripheral surface, and A pair of fixing steels 20 having a semi-cylindrical inner short deformation shape so as to be coupled to both sides from the outer surface of the embedded steel bar 10, and a fixing nut 30 for fixing the fixing steel 20 to the embedded steel bars The fixing hardware 20 is formed on the inner surface of the rib grooves 21 are received receiving the reinforcing ribs 11, the upper and lower ends of the fixing screw 23 is formed on the outer surface In addition, the fixing nuts 30 implement the basic technical concept of the present invention in that they include a technical configuration having a female screw groove 33 screwed to the fixing screw part 23 on the inner surface thereof.

In the present embodiment, the buried iron bar 10, as shown in Figure 1a, 1b, side grooves 12 are formed in the longitudinal direction on both sides of the outer surface, the reinforcing ribs 11 in the wind circumferential interval Each has a protruding shape.

The pair of fixing steels 20 has an inner shape in which an inner surface thereof is unevenly coupled to the reinforcing ribs 11 of the buried iron rod 10, as shown in FIGS. 2A, 2B, 2C, and 2D. Has a fixing projection 22 that is unevenly coupled to the side groove 12 of the buried iron bar 10 is integrally formed. In addition, fixing screws 23 are formed on the outer surface of the upper end and the lower end.

The embedded steel bar shown above is just one example, and the shape of the embedded steel bar of the present invention is not limited to the above example. That is, the buried steel bar 10 in the present invention may be used for the deformed reinforcing bars having a variety of different shapes in the market. What is important is that the inner surface of the fixing steel 20 has a shape that is unevenly coupled with the outer surface of the reinforcing rib 11 of the deformed steel bar to be used as a buried iron bar.

Protruding humps 24 are integrally formed on the outer surface of the fixing hardware 20 as shown in FIG. 2A. The protrusion hump 24 serves to increase the anchorage support force in the ground after the anchor anchor pile of the present invention is fixed in the ground. In this embodiment, as shown in FIG. 2C, the plurality of protruding grooves protrude at predetermined intervals in the longitudinal direction of the buried iron bar, while allowing the grout hose to be easily attached between the outer surfaces thereof. This is to increase the support capacity of the settlement.

The fixing nut 30 has an inner cross section which is screwed to the fixing screw part 23 as shown in FIGS. 3A and 3B. The fixing nut 30 is screwed to the fixing screw portion 23 formed on the outer surface of the upper end and the lower end of the fixing hardware 20, thereby fixing the fixing hardware 20 to the outer surface of the embedded steel rod (10). Perform.

If you want to use a long continuous connection between the buried steel bars, as shown in FIG. 4, one fixing nut 30 is covered with one fixing nut 20 and the fixing parts 20 to the joints of the other buried steel bars In the embedded steel bar 10, the other fixing nut 30 can be firmly connected to the two embedded steel bars by fixing to the other embedded steel bar.

On the other hand, the outer surface of the buried iron bar 10 as shown in FIG. 5 has an inner cross-sectional shape that is coupled to the outer surface of the buried iron bar 10, the outer surface is a pair of protruding screw portion 43 is formed Auxiliary fixing hardware (40) consisting of attachment holes (41) and a protruding hardware (42) screwed to the protruding screw portion (43) of the attachment holes (41) is attached and fixed, further fixing the supporting force of the buried steel bar It may also play a role in improving.

In addition, as shown in FIG. 6, the lower end of the buried iron bar 10 has a pointed shape at its lower end, and a recessed cap 55 is formed at the upper center thereof to fix the lower cap 50 fitted to the embedded iron bar. It is desirable to be. The lower cap 50 serves to help the end of the buried iron bar is directly contacted and supported by the ground.

The underground anchor pile thus constructed is used in the following manner, as shown in FIGS. 7A to 7E.

First, the construction of the underground anchor pile of the present invention by assembling the deformed reinforcing bars (d) and other parts at the construction site, and second, to form a pile hole (p) to a predetermined depth through the boring process, and third, the grout hose The underground anchor pile of the present invention having (h) mounted on its side is inserted into the pile hole p to the required depth, and fourth, grout is injected into the pile hole p through the grout hose h. Fifth, after the injected grout is cured, the pressure plate (b) is fixed to complete the construction of the underground anchor pile.

[Effects of the Invention]

The underground anchor pile of the present invention constructed and constructed as described above does not require any extra cost for the production of the embedded steel bar, and the contractor can freely install the fixing steel at any position of the embedded steel bar, and the entire length of the embedded steel bar is constructed at the construction site. This is a very useful tool that can be easily extended to use.

Claims (7)

An inner short side of the semi-winding tubular shape so that the reinforcing ribs 11 having a shape of a deformed reinforcing bar are integrally protruded at predetermined intervals at predetermined intervals on the outer circumferential surface, and are coupled to both sides from the outer surface of the buried iron bar 10. It consists of a pair of fixing hardware 20 having a shape, and fixing nuts 30 for fixing the fixing steel 20 to the buried steel bars, the fixing hardware 20 is the reinforcement on the inner surface Rib grooves 21 are formed in which the ribs 11 are received, and fixing screws 23 are formed on the outer and upper ends thereof, and the fixing nuts 30 are formed on the fixing screw 23 on the inner surface thereof. Underground anchor pile, characterized in that the female threaded groove 33 is formed to be screwed. According to claim 1, The buried iron bar 10 is an underground anchor pile, characterized in that the side grooves 12 are formed in the longitudinal direction on both sides of the outer surface, the reinforcing ribs 11 protrude at regular intervals in the circumferential direction . According to claim 1, wherein the pair of fixing steel (20) has an inner shape of the inner surface is unevenly coupled to the reinforcing ribs 11 of the embedded steel bar 10, side grooves of the embedded steel bar (10) 12. An underground anchor pile, characterized in that the fixing projections 22 which are unevenly coupled to 12 are formed integrally. The underground anchor pile of claim 1, wherein a plurality of protruding grooves (24) are integrally formed on the outer surface of the fixing hardware (20) at predetermined intervals in the longitudinal direction. According to claim 1, wherein the outer surface of the buried iron bar 10 has an inner short deformation shape of the inner surface is coupled to the outer surface of the buried iron bar 10, the outer surface is a pair of attachment holes formed with the protruding screw portion 43 (41) and the auxiliary anchoring hardware (40) consisting of a fixing fixture (42) screwed to the protruding screw portion (43) of the attachment holes (41), characterized in that the anchor anchor pile. The lower end of the buried iron bar 10 has a pointed shape, the lower end portion 50 is formed in the upper center portion is formed in the groove portion 55 is characterized in that the lower cap 50 is fitted to the embedded iron bar is fixed. Underground anchor file. At the construction site, the underground anchor piles are fabricated by assembling the deformed bars (d) and other parts, and through the boring process, the pile holes (p) are formed to a predetermined depth, and then the grout hose (h) is removed. After inserting the underground anchor pile mounted on the side to the depth of the pile hole p to the required depth, the grout is injected into the pile hole p through the grout hose h, and the injected grout is cured. Construction method of underground anchor pile, characterized in that the construction by fixing the pressure plate (b).

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