KR101383623B1 - Grouting type fixation method for guard rail post - Google Patents

Abstract

The present invention relates to a constructing method for posts (10) of road protective facilities such as guardrails which can form a consolidated body of a radial shape around the post (10) by inputting the pipe-shaped post (10) with a plurality of through-holes (15) into the ground; injecting grout which is semisolid and semiliquid, inside the post (10); and curing the grout after infiltrating the grout to the ambient ground. Furthermore, the present invention promotes the infiltration of the grout into the ground by inputting a side boring device (30) inside the post (10) before injecting the grout and forming transverse infiltration holes (29) connected to the through-holes (15) underground. The constructing method can reinforce the connection of the post (10) of the road protective facilities and the ground. Especially, the constructing method can firmly install the post (10) of the protective facilities even on a spot where properties of the ground is bad or proper inputting length is difficult to obtain.

Description

Bishop's Construction for Protective Facilities Owners {GROUTING TYPE FIXATION METHOD FOR GUARD RAIL POST}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of constructing a strut 10 of a road protection facility such as a guardrail, and injects a tubular strut 10 through which a plurality of through holes 15 are drilled into the ground, and then supports the strut 10. By injecting a half-liquid semi-solid injection material therein and infiltrating the surrounding ground and curing, it is possible to form a radial solidified body around the support (10).

In addition, by inserting the lateral drilling device 30 into the support 10 before the injection of the injection material to form a transverse penetration hole 29 connected to the through hole 15 in the surrounding ground, it is possible to promote the penetration of the injection material in the ground. It would be.

The road protection facility is a structure that is installed on the side of the road or the center of the road to prevent the fall of the vehicle, the deviation of the road or the central line invasion, as shown in Figure 1, a plurality of struts (10) fixed in the ground in general parallel to the line and The plate rail 19 etc. which are fixed to this support | pillar 10 are comprised.

The protective equipment support 10, which is usually made of a metal tube, is installed in such a manner that the lower part is infiltrated into the ground and the upper end is exposed. In the case of soft ground, it is installed in a type manner, and the hard ground In this case, after drilling a vertical excavation hole through a ground drilling device, etc., the pillar 10 is pressed into the excavation hole.

Therefore, it can be said that any resistance other than the main surface friction force acting on the intrusive portion of the support 10 is difficult, and in particular, a point where it is difficult to secure the soft ground or the root position is difficult. In the case of the support 10 there is a problem that the conduction resistance and pullout resistance is severely weakened.

Lack of lateral resistance of the conventional guard facilities (10) can cause a fatal accident during a vehicle crash, especially in the case of large vehicles there is a serious problem that can not expect a substantial protective effect.

Thus, a method of densely installing the support 10 is applied, but not only excessive construction cost is required, but also the view of pedestrians and drivers is obstructed and the scenery of the installation site of the protection facility is damaged.

The present invention has been made in view of the above-described problems, and in the method of constructing a support (10) of a protection facility, the tubular support (10) in which a plurality of through holes (15) are drilled is introduced into the ground. Injecting step (S10) and the injection pipe 20 is injected into the support 10, and the injection material ejected through the through hole 15 of the support 10 by injecting a semi-half semi-solid injection material into the injection pipe 20 Protection step characterized in that it consists of an injection step (S30) to penetrate into the surrounding ground, and curing step (S40) to cure the injection material penetrated into the surrounding ground around the support (10) and to install the upper facilities on the ground on the top of the support (10) As a bishop construction method of the facility holding, the penetration step (S10) is a drilling step (S11) for drilling an excavation hole in the installation point of the support (10), and a plurality of through holes (15) in the drilled excavation hole It consists of an insertion step (S12) for inserting the tubular support (10), or the installation of the support (10) A press-in step (S13) of press-fitting the tubular support (10) in which a plurality of through holes (15) are perforated at the point, and the auger (27) is introduced into the press-supported support (10) to support the inside of the support (10). Bishop construction method of the landlords of the protective facility, characterized in that it consists of a clay (S14) to remove the soil.

In addition, before performing the injection step (S30) after completion of the penetration step (S10), the strut having a side punching device 30 protruding sideways from the main body 31 having an outer diameter of less than the inner diameter of the support (10) 10 is injected into the inside, and the lateral drilling step (S20) is performed so that the protruding spike 40 passes through the through hole 15 of the support 10 and forms a transverse penetration hole 29 in the surrounding ground. The method of construction of a bishop of a protection facility strut, characterized in that the side drilling device 30 is a hollow body 31 having a through hole 32 formed on one side thereof and a fluid that is stretched by fluid pressure. As a pressure cylinder, the rear end is connected to the inside of the main body 31 and the driving cylinder 55 is installed at the tip of the driving cylinder 55, and is elevated in the main body 31 in accordance with the expansion and contraction of the driving cylinder 55 and the inclined groove therein. An elevating plate 50 having a 51 formed therein, and a roller 41 traveling along the inclined groove 51 of the elevating plate 50 at a rear end thereof. It consists of a rod-shaped spike 40 which is installed and coupled to the through-hole 32 of the main body 31, and according to the expansion and contraction of the driving cylinder 55 and the lifting and lowering of the elevating plate 50, 41 is a dichroic construction method of the protection post, characterized in that the spike 40 is moved forward and backward in the axial direction while traveling along the inclined groove (51).

Through the present invention, it is possible to reinforce the bond between the road protection facility support 10 and the ground, and in particular, the installation of the protection facility support 10 can be secured even at a point where the ground characteristics are poor or abundant to secure a sufficient position.

By strongly binding the protection post 10 to the ground, it is possible to improve the collision resistance of the entire protection installation. In particular, due to the solidification formed around the support 10 even when the ground is softened due to rainfall infiltration and groundwater flow. By maintaining the binding force, the structural stability of the protection facility can be greatly improved.

In addition, since the impact resistance per strut 10 can be significantly improved compared to the conventional guard facilities 10, the number of required struts 10 per unit section can be reduced, thereby reducing construction costs and improving the landscape. The effect of improving can be obtained.

1 is an exemplary road protection facility composed of struts
Figure 2 is a step-by-step explanatory diagram of the perforated embodiment of the present invention
Figure 3 is an explanatory diagram step-by-step of an embodiment of the present invention
4 is a partial cutaway perspective view of the present invention
Figure 5 is a step-by-step explanatory diagram of an embodiment of the present invention to which the side drilling step is applied
Figure 6 is a perspective view of a partially cut side punching device of the present invention
Figure 7 is a perspective view of the lateral drilling device drive system of the present invention
Figure 8 is an explanatory view of the side puncturing device spike coupling method of the present invention
Figure 9 is an explanatory view of the operation method of the side boring device of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, Figures 2 and 3 are explanatory diagrams for each of the perforated and press-fitted embodiments of the present invention, respectively, as shown in the present invention. Injecting (10) into the ground, but is started in the penetration step (S10) to be a state in which the soil inside the intruded prop 10 is removed.

Penetration step (S10) is a step of injecting the support (10) to the installation planning point ground of the protection facility support 10, and then to create a state capable of injection of the injection material to be described later, depending on the characteristics of the planned point ground It may be constructed by the insertion method after the line drilling as in 2, or may be constructed by the topsoil method after the line indentation as shown in FIG.

That is, as shown in FIG. 2, when the installation plan point of the support 10 is hard ground, after performing the drilling step S11 for drilling the excavation hole through the ground drilling mill, a plurality of holes 15 are provided in the drilled excavation hole. Completion of the penetration step (S10) by performing the insertion step (S12) for inserting the perforated tubular support (10), or as shown in Figure 3, if the plan (10) installation planning point is soft ground After performing the press-in step S13 of press-fitting the tubular support 10 through which the through hole 15 of the tubular hole is drilled through a hydraulic hammer or the like, an auger 27 inside the press-fitted support 10. By inserting the landscaping step (S14) to perform the topsoil removal step (S14) to remove the internal soil.

At this time, in performing the drilling step (S11), the diameter of the pre-drilled excavation hole is formed to be smaller than the outer diameter of the strut 10 is inserted, it can be made a solid insertion.

After the injection step (S10) is completed, the injection pipe 20 is introduced into the support column 10, and the step of performing a bishop (注 膠, grouting), that is, injection of the semi-half semi-solid injection material into the injection pipe 20 Injection step (S30) is carried out so that the injection material ejected through the through-hole 15 of the 10 to the surrounding ground, as shown in Figures 2 and 3, the injection material mixer and the pumping device built on the ground, etc. The injection pipe 20 which is injected into the bishop facility and the support 10 is connected by a pressure hose to inject a semi-liquid semi-solid injection material such as cement milk or water glass into the support 10. At this time, the packer (25) is installed in the injection pipe 20 is expanded by compressed air to maintain the airtight state in the injection pipe (20).

As such, when the half-liquid semi-solid injection material is injected into the support 10 held in the airtight state by the packer 25, the injected injection material is ejected to the surrounding ground through the through hole 15, and the injected injection material is jointed in the ground. Or penetrates and diffuses along the pores.

The injection material penetrated into the ground in the injection step (S30) is diffused in the curing step (S40) to form a radial cement cement solid, and as shown in Figure 2 and 3, When curing is completed, by installing the upper surface facilities such as the plate-like rails 19 on the upper end of the support 10, the protection facility to which the present invention is applied is completed.

In the present invention, the shape of the small cement cemented body formed around the support 10 is determined by the characteristics of the ground and the position and number of the through holes 15 perforated in the support 10. In consideration of the ground characteristics and the required impact resistance, various types of struts 10 as shown in FIG. 4 may be selectively applied.

On the other hand, in the ground where pores or joints are not developed and sufficient penetration of the injection material is difficult, as shown in FIG. 5, the transverse penetration hole 29 connected to the through hole 15 of the support 10 is formed in the surrounding ground, May facilitate penetration.

That is, the above-mentioned penetration step (S10) is completed, before the injection step (S30), the side puncture apparatus protruding sideways from the main body 31 having an outer diameter less than the inner diameter of the support (10) ( 30 is injected into the support 10, the lateral puncture step so that the protruding spike 40 passes through the through hole 15 of the support 10 to form a transverse penetration hole 29 in the surrounding ground ( S20).

As in the expanded portion of Figure 5, the side boring device 30 of the present invention is mounted on the construction equipment such as back hoe (back hoe) is introduced into the support 10, the side, that is, the spike 40 in the horizontal direction ) Is a protruding structure, where the spike 40 is a small rod with a sharp edge that is sharply pushed into the ground so that the axial advance and retreat are repeated according to the operation on the ground. It penetrates the through hole 15 of the support 10 to pierce the transverse penetration hole 29 in the surrounding ground.

6 to 9 illustrate the structure and operation principle of the side boring apparatus 30 applied to the present invention.

First, as shown in FIG. 6, the lateral drilling device 30 of the present invention has a hollow main body 31 having a through hole 32 formed on one side thereof, and a fluid pressure cylinder that is stretched and contracted by fluid pressure. As the rear end is connected to the driving cylinder 55 inside the main body 31 and the driving cylinder 55 is installed in the front end of the driving cylinder 55 in accordance with the expansion and contraction of the main body 31 and the inclined groove 51 ) Is provided with an elevating plate 50 and a roller 41 traveling along the inclined groove 51 of the elevating plate 50 at the rear end thereof and having a rod shape coupled to the through hole 32 of the main body 31. V) a spike 40.

That is, the drive cylinder 55, the lifting plate 50, and the like are embedded in the hollow cylindrical body 31, and the spike 40 is coupled to the through hole 32 formed in the main body 31, and moves forward in the axial direction. And while retreating, the protruding to the outside of the main body 31 and the storage to the inside of the main body 31 is made.

The rear end of the spike 40 of the present invention is provided with a roller 41 is freely rotated, as shown in Figure 7, the roller 41 of the spike 40 is inclined groove 51 formed in the elevating plate 50 As shown in the figure, the upper end of the elevating plate 50 is connected with the driving cylinder 55 and the elevating plate 50 is also elevated as the driving cylinder 55 is stretched.

In the lateral drilling device 30 of the present invention, the driving cylinder 55 is a fluid pressure cylinder operated by a fluid pressure such as air pressure or hydraulic pressure, as described above. Pneumatic or hydraulic pressure can be easily provided from various construction equipment commonly used in construction, and does not require the construction of excessive additional equipment or facilities for the generation of fluid pressure.

As shown in Figure 6, the spike 40 of the present invention is coupled to the through hole 32 can be said to be in a state in which movement other than the axial direction is suppressed, but of the spike 40 through the inner peripheral surface of the limited through hole 32 Since there may be a limit to the fluctuation of the shaking, as shown in FIG. 8, the guide rod 33 traversing the body 31 is provided inside the body 31, and an inner diameter that matches the outer diameter of the guide rod 33 is provided. The spike 40 is made of a tubular body, and the spike 40 is axially moved in a state in which the spike 40 is coupled to the guide rod 33, thereby suppressing unnecessary fluctuation of the spike 40 and moving forward and backward in the axial direction. Can stably induce exercise.

As such, the roller 41 coupled to the inclined groove 51 in the elevating plate 50 and traveling along the inclined groove 51 during the elevating of the elevating plate 50 is installed at the rear end thereof, and has a through hole 32 and an induction hole. The operating state of the spike 40 in which movement other than the axial direction is suppressed by the rod 33 is shown in detail in FIG.

As shown in the left side of FIG. 9, in the state where the driving cylinder 55 is completely contracted and the lifting plate 50 is raised, the spike 40 is retracted and stored in the main body 31.

Subsequently, when the driving cylinder 55 is extended to raise and lower the lifting plate 50, the roller 41 travels along the inclined groove 51, and the spike 40 whose movement other than the axial direction is suppressed is advanced. It protrudes out of the main body 31.

Although not shown in FIG. 9, when the driving cylinder 55 contracts, the above-described movement of the spike 40 and the reverse direction occurs, and the spike 40 is retracted and stored inside the main body 31.

10: Holding
15: through-hole
19: plate rail
20: Injection tube
25: packer
27: auger
29: penetration hole
30: side punching device
31: Body
32: through hole
33: induction rod
40: spike
41: roller
50: lifting plate
51: inclined groove
55: drive cylinder
S10: Intrusion Step
S11: drilling step
S12: Insertion step
S13: Indentation Step
S14: Topdressing Step
S20: Side drilling step
S30: injection step
S40: curing step

Claims (5)

As a method of constructing the support (10) of the protection facility, the penetration step (S10) for injecting the tubular support (10) in which the plurality of through holes (15) are perforated into the ground, and in the support (10) Injecting step 20 and the injection step (S30) to inject the injection material injected through the through-hole 15 of the support 10 into the surrounding ground by injecting a semi-half semi-solid injection material into the injection pipe 20, and the support (10) In the method of construction of the strut (10) of the protection facility consisting of a curing step (S40) for curing the injection material penetrated into the surrounding ground and installing the upper ground facilities on the top of the strut (10),
After performing the injection step (S10) and before the injection step (S30),
The strut 10 is injected into the strut 10 by inserting the lateral boring device 30 in which the spike 40 protrudes laterally from the main body 31 having an outer diameter less than or equal to the inner diameter. After passing through the through hole (15) of the side piercing step (S20) to form a transverse penetration hole (29) in the surrounding ground is carried out a bishop's construction method of the support post of the protection facility.
The method of claim 1, wherein the side punching device 30
A hollow body 31 having a through hole 32 formed at one side thereof;
A driving cylinder (55) having a rear end connected to the inside of the main body (31) as a fluid pressure cylinder which is stretched by the fluid pressure;
An elevating plate 50 installed at the front end of the driving cylinder 55 to be elevated in the main body 31 according to the expansion and contraction of the driving cylinder 55 and having an inclined groove 51 formed therein;
A rod-shaped spike 40 is installed at a rear end of the roller 41 traveling along the inclined groove 51 of the elevating plate 50 and coupled to the through hole 32 of the main body 31. And the spikes 40 move forward and backward in the axial direction while the rollers 41 travel along the inclined grooves 51 in accordance with the expansion and contraction of the driving cylinder 55 and the lifting and lowering of the elevating plate 50. Method of construction of the diocese of protective facilities holding delete delete delete

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