KR200366041Y1 - A removal nail device in nail construction - Google Patents

Abstract

The present invention is a nail member is formed on the outer periphery and the fastening screw portion formed on the head; A large-diameter nail separating housing member inserted into the outer periphery of the nail at a predetermined interval at a predetermined interval on the outer periphery of the nail member; A divided semi-cylindrical wedge member having a plurality of grooves on the inner circumferential surface of the nail member and matching the outer circumferential protrusion of the nail member and protruding the rotation stopping protrusion on the outer surface; A wedge fixing member for clamping the wedge member to fix the nail member; A pull-out nail device comprising a cylindrical space member coupled to a wedge fixing member, the cap member closing the opening of the uppermost separating and storing member and the cylindrical fixing spacer member at the rear end, wherein the nail member is inside the nail member. The wedge separating and receiving member, the semi-cylindrical wedge member, and the wedge fixing member and the cylindrical space member for fixing the nail member by clamping the wedge member on the outside thereof from the distal end as a unit of one section. After joining a plurality of sections in sequence, they are installed in the anchor hole and grouted, and after hardening the grout material, the wedge member coupled to the nail of the nail member is moved to the large-sized separate storage member side by striking the outer end head of the nail member. After disassociation with, grab the tip of the nail and draw it to the outside It can be removed by the method of drawing out and dismantling the nail, so it is easy, quick, easy and efficient with little manpower and effort without any complicated work tools. The present invention relates to a pull-out nail device in a soil nailing method that can significantly save time.

Description

A removal nail device in nail construction}

The present invention is designed to prevent cracks and collapse of excavated surrounding soils during the construction of underground structures in construction or during excavation works. A plurality of anchor holes are drilled downwardly inclined with respect to the soil surface, and a tension nail for reinforcing the soil surface is inserted. In the Soil nailing method, after the reinforcement work is completed, the soil is inserted into the anchor hole of the soil surface. In the nail removal work, the worker's nail protrudes to the outside without complicated dismantling equipment. After releasing the state of internal coupling, grab the tip head and draw it to the outside. It can be removed by the working method, so the nail removal work is easy, quick, easy and efficient with little manpower and effort without any complicated work tools, which greatly reduces the work cost and time required for nail removal work. It relates to a drawing removal type nail device in a soy nailing method.

In general, when constructing structures such as underground structures and tunnels in construction and civil works, first, so-called excavation work is carried out to excavate the ground around the structure deeply, and during such excavation work, the excavated vertical or inclined soil is excavated. It is well known that the earthquake works in parallel to prevent the soil from cracking and collapsing.

One of the conventional methods in carrying out such a clogging construction is known as a support method for laying a pile facility by piles, plates, piles, etc. on the excavated soil surface side, but such a support method embeds piles or piles into the ground. There are not only disadvantages that adversely affect the surrounding environment due to severe noise or vibration caused by the facility, but also a lot of facilities due to the construction of the building, and the construction is complicated, which requires a lot of manpower and equipment, which increases the cost of construction. In addition, facilities such as braces have a relatively narrow construction and working space, and have a complex structure that is difficult to transport or handle the excavated soil, and its construction cost is so high that it is difficult to apply to large-scale excavation.

In this case, in the case of soil or soil and rock wall which can easily be collapsed and cracked at the time of excavation work, cracking and collapsing of the excavation surface or adjacent ground occurs. As a safety measure in order to prevent the risk of being in advance, as shown in Figure 1, a plurality of anchor holes (c) at any position inclined downward with respect to the inclined wall surface (b) of the soft ground such as the excavated soil surface (a) ) And inserting nails (n) such as reinforcing bars or wires at each anchor hole (c), and injecting grouting material (e), such as concrete paste, into the space inside the anchor hole (c) around the nail (n) and hardening them. In this method, after the injected grout material (e) is hardened, the nail (n) is tensioned and fixed to improve the shear resistance of the soft ground, and thus excavate the soft ground. on The so-called nailing method has been adopted to solve the problems such as cracks and collapses that can occur during the process and to improve the stability of the trenching work.

In such a nailing method, it is divided into a nail removal type for removing nails after reinforcing the soil surface and a non-removable type for leaving the nail on the soil surface. The nail is removed separately in the non-removable nailing method. Although there is an advantage in the construction that does not need to remove the work, the nail remains in the anchor hole even after the construction is completed, which adversely affects the excavation of the ground during the construction work of the adjacent site. In the case of a very limited and real estate which requires maximum land use such as cash, the excavation work during construction of the building is carried out extremely close to the surrounding other sites, in which case other sites on the adjacent site after construction are constructed. Considering the utility and workability of the site, such as subsequent construction work such as digging, A trend that is utilized to re-occupy the site so close through masturbation or complaints, adopted the so-called removing type nailing method of removing from Saturday to pardon the four days into the anchor hole lot gradually to reduce the possibility of disputes.

However, in the conventional removal nailing method, a screw is formed on the outer circumference of the nail, which is generally reinforced, and spacers and wedges on the screw of the nail are used to prevent the grouting material from adhering to the nail during grouting in the anchor hole. It mainly adopts a method of screwing together a nail cover member or a fixing member such as a screw, and the screw dismantling method includes a tool or dismantling equipment for each screw on the soil surface after the construction. The screw is rotated in a screw type to dismantle and remove the nail from the anchor hole, which removes the nail by requiring a separate device for rotating the nail during dismantling and removal. The work requires a lot of manpower and labor, and the work is quite complicated and inefficient There is an uneconomical disadvantage in that it requires a lot of cost and work time for the removal work, and in the case of large-scale construction work, the digging work is relatively large, and accordingly, the earthen work is enlarged, and the installation and demolition work of the nail is considerable. There has been a significant burden on the removal or removal work, which has led to a problem that the cost of demolition is further increased.

Therefore, in the case of the screw dismantling method of nail removal type, due to the burden of the complex removal work as described above, there is a significant possibility that the demolition work, such as the incomplete removal of the nail by the contractor or the worker, may occur. If this is done poorly, the result of the rebar nail remaining on the adjacent site remains as it is, and the reinforcement nail remaining during the subsequent construction of the adjacent site severely adversely affects the excavation work at the adjacent site, thereby causing the user of the adjacent site construction to be damaged. In addition, risks and problems, such as allowing civil builders to provide complaints and disputes, have often occurred.

Accordingly, the present invention solves the shortcomings and problems of the screw dismantling method of the nail, which is carried out in the conventional nail removal method as described above, and dismantles and removes the nail from the anchor hole, so that the worker can carry it without separate dismantling and removal equipment. With a hammer, only the head part of the nail protruding out of the sediment surface is blown inward to release the nail and the wedge and then simply pull out the nail to the outside to dismantle the nail. The purpose of the present invention is to provide a nail removal device and method that can greatly reduce the construction cost due to demolition work by making the removal and demolition work very easy and efficient with less manpower and equipment.

In addition, the present invention uses the nail as a framework for reinforcing bars commonly used in existing construction sites, by combining wedges firmly and firmly in the ledges protruding in the circumferential and longitudinal directions of the reinforcing bars to assemble the nail Another object is to provide a nail that can efficiently construct a nail in response to the anchor ball in the workplace.

In addition, the present invention enables the operator to easily remove the nail by himself or herself without a separate removal device, so that the removal work can be performed reliably and completely, thus destroying the adjacent site due to the incomplete nail removal and removal work as in the prior art. Another purpose is to provide a nail that can eliminate the problem of adverse effects of work, and thus eliminate the risks and problems of the user or contractor of the adjacent site construction. .

In addition, the present invention, once the nail dismantling is completed, the other parts that covered the nail inside the hardened grouting material will be present in the cylindrical shape assembled inside the empty state, so that the hardening during the subsequent excavation of the reinforced soil surface Another object is to provide a nail that can be easily cut or broken, such as a grouting material, so that the burting operation can be performed smoothly.

The present invention for achieving the above object is a nail member is formed on the outer periphery and the fastening screw portion formed on the head; A large-diameter nail separating housing member inserted into the outer periphery of the nail at a predetermined interval at a predetermined interval on the outer periphery of the nail member; A divided semi-cylindrical wedge member having a plurality of grooves on the inner circumferential surface of the nail member and matching the outer circumferential protrusion of the nail member and protruding the rotation stopping protrusion on the outer surface thereof; A wedge fixing member for clamping the wedge member to fix the nail member; A pull-out nail device comprising a cylindrical space member coupled to a wedge fixing member, and having a cap member for closing the opening of the uppermost separating and storing member and a cylindrical fixed spacer member at the rear end. Referring to the preferred embodiments according to the accompanying drawings of the invention as follows.

1 is an exemplary view of a conventional nailing method for explaining the present invention

2 is a perspective view showing the overall coupling state of the present invention,

3 is a partially exploded perspective view of the present invention,

Figure 4 is a perspective view of the combined state of a part of the present invention,

5 is an installation state diagram showing a construction state of the present invention,

6 to 7 is an enlarged cross-sectional view showing some of the installation and dismantling process of the present invention

6 is a cross-sectional view of the installation state,

7 is a cross-sectional view of the operating state at the time of separation, disassembly,

8 is a cross-sectional state diagram after removing the nail member,

9 to 10 are cross-sectional views of the installation, coupling state of the present invention,

9 is a cross-sectional view taken along the line II-II of FIG. 6,

10 is a cross-sectional view taken along the line III-III of FIG. 7,

11 and 12 are a perspective view and a cross-sectional view of another embodiment of the wedge member of the present invention.

* Explanation of symbols for main parts of the drawings

10: nail member 11, 12: longitudinal, transverse reinforcement protrusion

13: fastening screw part 20: wedge separation housing member

21: cylindrical insertion portion 22: locking jaw

23: cylindrical wedge separating compartment 24: rear end cylindrical portion

30: wedge member 31, 32: rotating jersey protrusion

33,34: upper and lower wedge body 35,36: stone insertion groove

40: wedge fixing member 41: insert groove

42, 43: Insertion groove 44: Wedge inlet

45: insertion hole 46: wedge entry barrier

47: chin 48: insertion groove

49: reinforcing rib 50: cylindrical connector member

51: grouting hose guide groove 60: cap member

70: cylindrical fixing space member 80: fastening nut

90: fastening means N: nail means

a: earth surface b: wall surface

c: anchor ball n: nail

e: grouting material

Figure 2 is a perspective view showing the entire coupling state of the present invention, Figure 3 is a partially exploded perspective view of the present invention, Figure 4 is a perspective view of a partially cut state of the present invention, Figure 5 shows a construction state of the present invention 6 to 7 is a partially enlarged cross-sectional view showing the installation and dismantling process of the present invention, Figure 6 is a cross-sectional view of the installation state, Figure 7 is a cross-sectional view of the operating state at the time of separation, disassembly, Figure 8 is a nail member A state diagram of the cross section after removal.

As shown, the subject innovation is a nail member 10; A wedge separate storage member 20 inserted into an outer circumference of the nail at a predetermined interval on the outer circumference of the nail member 10 at a predetermined interval; A divided semi-cylindrical wedge member 30 engaged with the nail member 10; A wedge fixing member 40 for fixing the nail member 10 by narrowing the wedge member 30; Cylindrical connecting pipe member 50 coupled to the wedge fixed cylindrical member 40, cap member 60 for closing the opening of the wedge separation receiving member 20 of the upper end and the cylindrical fixed spacer member 70 of the rear end It is constructed.

The nail member 10 of the present invention is a nail member (as it is, using a plurality of longitudinally formed longitudinal, transverse reinforcement protrusions 11, 12 formed at equal intervals, which are commonly used in existing construction or civil engineering works. 10) and the nail member for the nailing work in the construction site by being able to cut and process the reinforcing bar according to the length of the anchor hole and processing only the fastening screw portion 13 to one end of the nail member 10 (10) can be easily processed and configured.

The wedge separation housing member 20 coupled to the outer periphery of the tip of the nail member 10 protrudes in the front of the cylindrical inserting portion 21 for inserting the cylindrical connecting tube member 50 to be described later, and is caught on its inner end. The jaw 22 is recirculated to restrain the entry of the cylindrical connecting tube member 50, and the rear side thereof is formed with a large diameter cylindrical wedge separating storage chamber 23, the rear end cylindrical portion 24 of which is described later. The inner diameter R1 of the locking jaw 22, which is inserted into the front end insertion groove 41 of the 40 and coupled to the inner end of the cylindrical inserting portion 21, is an outer diameter of the nail member 10. It is configured in the same or slightly larger state as R).

The wedge member 30 of the present invention is composed of the upper, lower wedge bodies 33, 34 divided into semi-cylindrical shapes which respectively rotate the rotary stop protrusions 31 and 32 on the upper end face, and the upper and lower parts. Grooves 35 and 36 recessed in the same shape are joined to the longitudinal and transverse protrusions 11 and 12 of the nail member 10 on the entire inner circumferential surface of the wedge bodies 33 and 34. Forming. Therefore, the inner circumferential surface of the wedge member 30 is the longitudinal and transverse protrusions 11 and 12 formed over the entire outer circumferential surface of the nail member 10 are inserted into the grooves 35 and 36 to be in close contact with each other. It is coalesced and coupled in a state so that the upper and lower wedge bodies 33 and 34 of the wedge member 30 are completely fitted to the outer circumferential surface of the nail member 10 so as to be covered and rotated or pushed together. It is prevented from being loosened and separated from each other to ensure a firm fit.

Therefore, the upper and lower wedge bodies 33 and 34 of the wedge member 30 as described above require a close adhesion with the surface protrusions 11 and 12 of the nail member 10, and thus have an elastic synthetic resin. It is preferable to configure similar materials with the same physical properties.

The present invention is provided with a wedge fixing member 40 for coupling the upper and lower wedge body 33, 34 of the wedge member 30 as described above in close contact with the entire surface of the nail member 10.

The wedge fixing member 40 of the present invention has an insertion groove 41 for connecting and coupling the rear end cylindrical portion 24 of the wedge separation housing member 20 to one side end surface, and is connected to each other. The front and bottom of the wedge member 30, the upper and lower wedge body 33, 34 is inserted into the rotary stop protrusions 31, 32 protruding from the wedge member 30, the upper and lower wedges of the wedge member 30 Wedge member insertion holes 44 are formed in which insertion grooves 42 and 43 for suppressing rotation of the sieves 33 and 34 are opposed to the upper and lower sides thereof, and the back of the nail member 10 is formed. The wedge entry jersey 46, which has an insertion hole 45 having the same or slightly larger outer diameter, protrudes and is retracted, and the cylindrical insertion portion 21 of the wedge separation housing member 20 is formed at the rear end of the wedge entry jersey 46. Or a stopping jaw 47 is formed to suppress the entry of the cylindrical connecting member 50 to be described later, the outer end of the stopping jaw 47, the cylindrical insertion tube of the wedge separation receiving member 20 Has a cylindrical connecting pipe member 50 is formed with a groove 48 which sapchi, connected to 21 or below.

In addition, the wedge insertion opening 44 of the wedge fixing member 40 constitutes the length L1 equal to the length L2 of the upper and lower wedge bodies 33 and 34 of the wedge member 30. The member 30 is inserted into the nail member 10 in a coupled state so that the member 30 is inserted in close contact with the entire circumferential surface of the wedge insertion hole 44, and the inner diameter R2 and the rear stopper of the insertion hole 45 are also inserted. The inner diameter R3 of the cylindrical connecting member 50 inserted and inserted into the insertion groove 48 is substantially equal to or slightly larger than the outer diameter R of the nail member 10 so that the nail member 10 is formed. The entire outer circumferential surface of the nail member 10 passes through the insertion opening 45 of the wedge entry barrier 46 and the inner circumferential surface of the wedge entry member 45 when passing through the insertion opening 45 and the cylindrical connecting member 50 of the wedge fixing member 40. The inner circumferential surfaces of the wedge fixing member 40 and the cylindrical connecting tube member 50 are firmly contacted by the nail member 10 by penetrating while contacting with the inner circumferential surface of the connecting tube member 50 at almost the same shape. By supporting the nail member 10, the wedge fixing member 40 and the cylindrical connecting member 50 are prevented from being deformed due to bending, as well as the damage caused by the stress due to the solidification of the grouting material during the grouting operation. Stabilization of the insertion state of the) and smooth removal when removed.

In addition, the wedge fixing member 40 forms a plurality of sets of reinforcing ribs 49 on the outer circumferential surface, maximizing the contact area with the grouting material during the grouting operation, thereby increasing the adhesive force between the grouting material and the wedge fixing member 40. In addition, the strength of the self is sufficiently maintained to withstand the shrinkage pressure or stress at the time of curing so that the nail member 10 as well as the installation state of the entire nail device can be maintained firmly, the wedge fixing member 40 Grouting hose guide groove 51 is formed on the outer circumferential surface of the grout as usual, so that the grouting hose can be smoothly grouted while moving smoothly along the periphery of the nail.

Therefore, the wedge fixing member 40, the cylindrical connecting tube member 50 is supported by the nail member 10, such as reinforcing the inside, so that the strength is sufficient even if composed of a molding such as synthetic resin Even if it remains on the soil surface after nail removal, it can be easily broken and separated during the digging work, thus not causing any trouble in the subsequent digging work.

The process of assembling and assembling the present invention of such a component to the nail member 10 will be described in detail based on the attached drawings in FIGS. 5 to 10.

First, the wedge fixing member 40, the cylindrical connecting member 50 and the wedge of the above-described configuration on the nail member 10 by cutting the reinforcing bars along the length of the anchor hole (c) to process the fastening screw portion 13 After sequentially inserting the required quantity in the order of the separate storage member 20, the upper and lower wedge bodies on the longitudinal and horizontal reinforcement protrusions 11 and 12 protruding on the outer circumference of the nail member 10 ( 33), (34) of the plunging groove insertion grooves 35, 36 of the inner circumference of the upper and lower wedge body (33), (34) is integrally matched to the outer peripheral surface of the nail member 10, then combined , Wedge fixing member 40 by inserting in the opposite direction of the rotary stop protrusions 31, 32 of the upper and lower wedge bodies 33, 34 of the wedge member 30, but the wedge fixing member ( 40) When the rotary stop protrusions 31 and 32 of the upper and lower wedge bodies 33 and 34 are inserted into the upper and lower insertion grooves 42 and 43 formed in the inner periphery, The upper and lower wedge bodies 33 and 34 of the wedge member 30 are formed inside the wedge fixing member 40. The paper insertion hole 44 is pressed and coupled between the inner circumference and the outer circumference of the nail member 10 so that the upper and lower wedge bodies 33 and 34 and the wedge fixing member 40 of the wedge member 30 are coupled. ) Is integrally and firmly coupled, wherein the rear end of the wedge member 30 to be inserted is inserted into contact with the wedge entry blocking jaw 46 and the upper and lower wedge bodies 33 and 34 of the wedge member 30. ) Is inserted into and coupled with the wedge insertion hole 44 of the wedge fixing member 40.

In this manner, the upper and lower wedge bodies 33 and 34 of the wedge member 30 and the inner wedge insertion hole 44 of the wedge fixing member 40 are inserted into and combined with each other, and then the insertion grooves of the rear end of the wedge fixing member 40 are combined. The cylindrical connecting member 50 is inserted into the coupling unit 48, and when the tip of the cylindrical connecting member 50 is inserted into contact with the stopper 47, the cylindrical connecting member 50 is connected and installed. , The inner diameter (R3) of the cylindrical connecting member 50 is formed to be substantially the same or slightly larger than the outer diameter (R) of the nail member 10 and the outer circumferential surface in a state of being forced to be in close contact with the inner circumferential surface of the insertion groove (48) Closely coupled, the insertion portion of the cylindrical connecting member 50 is tightly coupled between the inner circumference of the insertion groove 48 formed at the rear end of the wedge fixing member 40 and the outer circumferential surface of the nail member 10.

The cylindrical connecting tube member 50 is coupled to the rear end of the wedge fixing member 40 as described above, and then the cylindrical portion formed at the end of the cylindrical wedge separating and storing member 20 on the outer circumference of the other open end of the cylindrical connecting tube member 50. Inserted by inserting the insertion portion 21, but is coupled to contact with the engaging jaw 22 annular to the rear end side of the cylindrical insertion portion 21 is coupled to the insertion of the cylindrical connecting member 50 is blocked, at this time In addition, since the inner diameter R1 of the cylindrical insertion portion 21 is formed to be substantially the same as or slightly larger than the outer diameter R of the nail member 10, the tip insertion portion 21 of the cylindrical wedge separating and storing member 20 is formed. ) Is firmly connected and coupled by the nail member 10 and the cylindrical connector member 50, it will be maintained,

As described above, the cylindrical wedge separating and storing member 20 is connected and connected, and then the wedge member 30 of the cylindrical wedge separating and storing member 20 is directly connected to the outer and outer nail members 10 in the same manner as described above. The upper and lower wedge bodies 33 and 34 are matched to the longitudinal and lateral reinforcement protrusions 11 and 12 of the nail member 10, and then the wedge fixing member 40 is inserted into the outer periphery thereof. The upper and lower wedge bodies 33 and 34 of the cylindrical connecting tube member 50, the wedge separating and storing member 20, and the wedge member 30 are continuously and vertically disposed on the nail member 10 again and again. Repeat the joining sequence of the mating-wedge fixing member 40 to the reinforcing protrusions 11 and 12 for the entire length of the nail member 10, and then tightening the screw portion of the outer rear end of the nail member 10 ( Finally, the cylindrical fixing space member 70 extending to a position close to the fastening screw portion 13 is finally inserted into the inside of the wedge fixing member 40, and then coupled to the wedge fixing member 40. When the end of the space member 70 is fastened with the fastening nut 80, the upper and lower wedge bodies 33 and 34 of the wedge member 30 directly coupled to the nail member 10 repeatedly by a predetermined section and By the wedge fixing member 40 which is in close contact with the wedge fixing member 40, each member such as the wedge separating and storing member 20 and the cylindrical connecting tube member 50 is coupled in a different state from each other. Finally, the cylindrical wedge separate storage member 20 is finally inserted into the front end insertion groove 41 of the wedge fixing member 40 coupled to the front end of the nail member 10, and then the cylindrical wedge separate storage member 20 is combined. Insertion of the cap member 60 into the open end of the cylindrical insert portion 21 of the front end to seal the inside is completed, the assembly is completed, large diameter for each front position of the wedge member 30 coupled to the nail member 10 The nail means (N) is assembled and completed in a state where the cylindrical wedge separation housing member 20 is located The member 10 is coupled to form a cylindrical cover that is continuously coupled to the outside.

The nail means (N) thus assembled is inserted into the anchor hole (c) perforated on the excavated soil surface (a), and is the same as a conventional grouting method in the space around the anchor hole (c) outside the nail means (N). Inject and harden grouting material (e) such as concrete paste to reinforce the soil surface (a) to stabilize the soil surface to prevent the collapse of the soil surface, and then construct the underground structure. When the inner nail member 10 of (N) is removed by being removed from the anchor hole (c), it is coupled and fixed to each other by the fastening means 90 and the fastening nut 80 mounted on the outer surface of the soil surface a. Disengage the fastening state by disassembling the fastening nut 80 from the fastening screw part 13 of the fastened nail member 10, and then fastening screw part 13 of the nail member 10 by means of a hammer (not shown). When the nail member 10 enters the anchor hole c by hitting the tip head of the outer circumference of the nail member 10 Upper and lower wedge bodies 33 of the respective wedge members 30 coupled by longitudinal and transverse reinforcement protrusions 11 and 12 protruding from the edge and the protrusion insertion grooves 35 and 36, (34) also advances forward with the nail member 10 enters the large diameter wedge separation storage room 23 side of the wedge separation collection member 20 located in the front, wherein the top and bottom of the wedge member 30 The outer circumferential surfaces of the wedge bodies 33 and 34 are in surface contact with the inner surface of the wedge insertion hole 44 of the wedge fixing member 40, so that the end of the nail member 10 is not subjected to any resistance. , Smoothly towed by the transverse reinforcement protrusions 11 and 12 to move to the inner space side of the wedge separation chamber 23, in this state continues to enter the upper and lower wedge body of the wedge member 30 Wedge member 30 is formed in a semi-cylindrical shape when (33), (34) enters a state completely separated from the inner surface of the wedge insertion hole 44 of the wedge fixing member 40 The external force applied in contact with the outer surfaces of the upper and lower wedge bodies 33 and 34 is removed, so that the upper and lower wedge bodies 33 and 34 of the wedge member 30 have a large diameter due to the impact impact and their own weight. Falling to the lower portion of the inner space of the wedge separation storage chamber 23 having a relatively large space of the to be released from the nail member 10, the nail member 10 is separated from the wedge member 30 is nail A plurality of cylindrical connecting tube members 50 and the wedge fixing members connected to the rear ends of the wedge fixing members 40 having inner diameters R3 and R2 that are substantially the same as or slightly larger than the outer diameter R of the member 10. Wedge separating and receiving member 20, which is present in contact with the inner circumferential surface of the wedge insertion opening 44 of the 40 and cylindrically wraps the outside of the nail member 10-Wedge fixing member 40-cylindrical connection The inner side of each element of the cylindrical nail means (N) coupled in the order of the tubular member 50-the wedge separate storage member 20 .... nail member 10 By maintaining the state firmly supported by the) while maintaining the state of the connection of the external elements in a straight line combined without disturbing the pull-out just by pulling the nail member 10 outside the anchor hole (c) It can be removed by the operator will be easily removed by hand without any equipment.

In addition, the upper and lower wedge body 33, 34 and the wedge fixing member 40 of the wedge member 30 formed in a semi-cylindrical shape in the description of the present invention above, the upper and lower wedge body The outer circumferential surface of the (33) and (34) and the inner circumferential surface of the wedge insertion opening 44 of the wedge fixing member 40 are formed in a flat state in a horizontal state, and the rotation lowering protrusions 31 for preventing rotation on the surface and the inner surface thereof. , 32, and the insertion grooves 42, 43 are formed, respectively, so that the upper and lower wedge bodies 33 and 34 are inserted into and coupled to the wedge fixing member 40, but FIG. 11 is illustrated. As shown in FIG. 12, the wedge member 30 is divided into semi-cylindrical shapes as described above, and configured as upper and lower wedge bodies 33 and 34, and upper and lower wedge bodies 33 and 34. Although the outer periphery of the structure is formed into a conical shape having a tapered inclined surface and the wedge insertion opening 44 of the wedge fixing member 40 also has a corresponding inclined surface, as described above, the coupling of the wedge member 30 or Of course, the dismantling can be carried out in the same process.

The present invention is a plurality of anchor holes perforated inclined downward on the soil surface during the earthquake construction to prevent cracks and collapse of the excavated surrounding soil during the excavation work when the underground structure of the building or civil engineering work Without the complicated dismantling equipment, the nail inserted into the nail is released by the worker simply hitting the tip head of the protruding nail with one-touch method to release the internal state of the nail. It can be removed by the method of drawing out and dismantling the nail, so it is easy, quick, easy and efficient with little manpower and effort without any complicated work tools. It can save a lot of time and easily check the nails by yourself without any additional removal equipment. It can be removed at the same time as it removes the problem of destructive work on the adjacent site due to the incomplete nail removal and demolition work. After the dismantling of the nail, the other parts which covered the nail inside the hardened grouting material are present in the cylindrical shape with the hollow inside assembled, so that the subsequent trench of the reinforced soil surface is removed. When working, such as hardened grouting material, it is easy to cut or destroy, and thus has various effects in construction and demolition work such as to facilitate the digging work.

Claims (4)

A nail member 10 having a protrusion formed on an outer circumference and a fastening screw portion 13 formed at a tip thereof; A large diameter wedge separating and storing member 20 inserted into the nail outer circumferential surface in a predetermined interval on the outer circumferential surface of the nail member 10 at a predetermined interval; The upper and lower wedge bodies 33 are divided into semi-cylindrical partitions which are provided with a plurality of grooves on the inner circumferential surface that coincide with the outer circumferential protrusion of the nail member 10, and protrude the rotary stop protrusions 31 and 32 on the outer surface. A wedge member 30 having a 34; A wedge fixing member 40 for fixing the nail member 10 by narrowing the wedge member 30; A cap member 60 having a cylindrical space member 70 coupled to the wedge fixing member 40, and closing the opening of the wedge separating and storing member 20 at the uppermost end and a cylindrical fixed spacer member 70 at the rear end. Removed nail device, characterized in that provided with. The method of claim 1, The nail means (N) is a nail member in the order of the wedge separation member 20, the wedge fixing member 40 coupled to the wedge member 30, the cylindrical connecting tube member 50 in the outer periphery of the nail member 10 A pull-out nail device, characterized in that the configuration to be repeatedly coupled to the full length of (10). The method of claim 1, Nail member 10 is formed in a semi-cylindrical partition, the insertion groove grooves 35, 36 to be coupled to the nail member 10 on the inner circumference, and the rotary bottom projections 31, ( 32) A pull-out nail device, characterized in that for forming. The method of claim 1, Nail member 10 is divided into a semi-circular shape is provided with an inclined surface on the outer periphery, and further comprises forming the insertion groove grooves 35, 36 coupled to the nail member 10 on the inner periphery A pull-out nail device, characterized in that.