KR101686993B1

KR101686993B1 - Reinforcement method of culvert

Info

Publication number: KR101686993B1
Application number: KR1020150115268A
Authority: KR
Inventors: 홍성영; 심재일; 이진곤; 안병은
Original assignee: 지엘콘(주); 포엠 주식회사
Priority date: 2015-08-17
Filing date: 2015-08-17
Publication date: 2016-12-28

Abstract

The present invention relates to a reinforcing method for a culvert, capable of safely supporting a load of an upper part of a culvert and obtaining a water flow capacity by minimizing the increase of the thickness of an upper slab in accordance with reinforcement of the upper slab, by applying a compressive force to the lower part of the upper slab by applying an upward force to the upper slab using a beam member having a camber. According to the present invention, the reinforcing method for a culvert, which is to reinforce a culvert comprising a lower slab, the upper slab, and a side wall individually connecting both side ends of the lower slab and the upper slab, includes: (a) a step of individually fixing and installing a bracket member to a position separated at fixed intervals from the upper slab on the inner side of the side wall on both sides; (b) a step of installing a hydraulic jack in the bracket member; (c) a step of installing a beam member having the camber formed to be convex to the upper side in order for the lower part on both ends of the beam member to be supported on the upper end of the hydraulic jack; and (d) a step of attaching the beam member to the lower part of the upper slab by pressing the beam member to the upper side by applying an oil pressure to the hydraulic jack.

Description

{Reinforcement method of culvert}

In the present invention, an upward force is applied to the upper slab by a beam member formed with a camber to introduce a compressive force to the lower portion of the upper slab, thereby minimizing the thickness increase of the upper slab according to the reinforcement of the upper slab, This is about the culvert reinforcement method that can be done.

A culvert is a waterway or a drainage channel that is installed under a road, a railway, a river bank, etc., and sewage water that is installed underground, and it is installed by a drainage pipe in a ground improvement or a tugger. Concrete is used (Patent No. 10-0665041, etc.).

As shown in FIG. 1, in the case of the individual training culvert 1 having a conventional hollow structure, if the upper slab 12 of the culvert 1 is sagged when the aging or the upper load is increased, Reinforcement is necessary.

However, when the upper slab 12 is merely made thick, there is a problem of a cross-sectional water loss.

As shown in FIG. 2, the multi-walled culvert 1 having a plurality of openings has a problem in that the flowability of the water is reduced due to the passage of debris such as debris and forest wastes into the center support wall 14 or the culvert structures such as the center support wall 14 It can be damaged.

Accordingly, there is a problem of increasing the cost of culvert maintenance due to the periodic removal of the conveyed objects accumulated on the center support wall 14 side.

In order to solve such problems, conventionally, a method of installing a temporary shield such as a guard rail, a method of installing a ring net anchored to a wire rope anchor, a method of installing a concrete shield or a steel material shield in front of the culvert, have.

However, the above methods may damage the aesthetics around the culvert.

In addition, the method of installing the concrete shielding should periodically remove the risk of defects due to the downstream crypts and the accumulated transported materials, and the method of installing the steel shielding film may include corrosion of the steel material due to plating damage by the conveying material, You still have to periodically remove the junk.

It is difficult to support the upper load of the culvert 1 when the central supporting wall 14 is removed, 12), which has a limitation in connection with the problem of cross sectional loss of the water.

In order to solve the above-mentioned problems, it is an object of the present invention to provide a culvert reinforcement method capable of reinforcing an upper slab while minimizing an increase in the thickness of the upper slab of the culvert, while ensuring watertightness.

The present invention provides a culvert reinforcement method capable of safely supporting a load on an upper part of a culvert while increasing a watertight capability by removing a central support wall dividing an adjacent culvert.

According to a preferred embodiment of the present invention, there is provided a culvert reinforcement method for reinforcing a culvert comprising a lower slab, an upper slab, and side walls connecting both ends of the lower slab and the upper slab, A main bracket having a through hole formed on an upper surface thereof and a housing detachably installed in the main bracket and having a housing space in which a hydraulic jack is received, Spaced apart from each other; (b) a hydraulic jack is provided in the housing space of the bracket member, and a support member having a threaded portion formed on the outer circumferential surface thereof is installed at the upper end of the piston of the hydraulic jack so as to protrude through the through hole of the bracket member, Combining the members; (c) installing a beam member having a camber formed in a convex upward direction so that both ends of the beam member are supported at the upper end of the hydraulic jack; (d) applying a hydraulic pressure to the hydraulic jack and pressing the beam member upwardly to bring the beam member into close contact with the lower portion of the upper slab; (e) rotating the nut member downward to closely contact the upper part of the bracket member; And (f) releasing the hydraulic pressure of the hydraulic jack to retract the piston and removing the hydraulic jack. The culvert reinforcement method is characterized in that the culvert reinforcement method is provided.

delete

According to another preferred embodiment of the present invention, the main bracket includes a rear plate fixed to the side wall and fixed to the side wall, a pair of side plates provided on both sides of the front plate and protrudingly formed on one side of the inner side, Wherein the housing comprises a bottom plate on which the hydraulic jack is seated, a pair of side plates provided on both sides of the top plate and a pair of side plates disposed on both sides of the top plate, and a top plate having a through hole formed in the center thereof, And a latching part protruding in the horizontal direction and hooked on the upper part of the support part of the main bracket.

According to another preferred embodiment of the present invention, there is provided a culvert reinforcement method, wherein both ends of the beam member are provided with fixing portions into which the upper ends of the support members are inserted.

According to another preferred embodiment of the present invention, the culvert is a multistory culvert comprising at least one central support wall provided between a lower slab and an upper slab, wherein at any stage prior to the step (c) And the culvert reinforcement method is provided.

According to another preferred embodiment of the present invention, in one of the steps prior to step (d), one point near both ends of the lower slab is cut along the longitudinal direction of the culvert .

The present invention has the following effects.

First, the beam member convexly cambered upwards is pressed to bring the beam member into close contact with the upper slab, and an upward force is applied to the lower portion of the upper slab, so that compression force is introduced under the upper slab, which is concrete, do. Therefore, the increase in the strength of the upper slab can minimize the increase in the thickness of the upper slab, while ensuring the throughput capability.

Second, in the case of multi-walled culvert, compressive force can be applied to the lower part of the upper slab after removing the center support wall, so that the load on the upper part of the culvert can be safely supported while increasing the watertight capability. Furthermore, it is economical because it can reduce the expenditure related to restoration of culvert, such as the cost of removing the moving objects concentrated in the vicinity of the central supporting wall.

Third, when a support member is provided at the upper end of the piston of the hydraulic jack and a nut member is coupled to the upper portion of the support member, the nut member may be brought into close contact with the upper portion of the bracket after compressive force is applied to the lower portion of the upper slab. Furthermore, since the bracket member is constituted by the main bracket and the housing, and the housing can be removed after fixing the beam member, the steel material can be saved.

Fourth, when the fixing portion is provided at both ends of the beam member, since the upper end of the supporting member is inserted into the fixing portion, the supporting member can be stably positioned without being deviated from the beam member.

Fifth, in the case where the vicinity of both side edges of the lower slab is cut along the longitudinal direction of the culvert, warping deformation of the lower slab can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
2 is a sectional view of a conventional two-row culvert.
3 is a view showing each step of the culvert reinforcing method of the present invention.
4 is a perspective view showing a coupling relationship of the bracket member according to one embodiment.
5 is a view showing each step of the culvert reinforcing method of the present invention when the support member and the nut member are provided;
6 is a perspective view showing a coupling relationship of the bracket member according to another embodiment;
7 is a perspective view showing a coupling relationship between a main bracket and a housing of a bracket member according to yet another embodiment;
8 is a perspective view showing a coupling relationship of the bracket member shown in Fig.
9 is a cross-sectional view showing a coupling relationship between a beam member having a fixing portion and a support member;
10 is a cross-sectional view showing a multiple culvert.
11 is a cross-sectional view of the culvert with the lower slab cut.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

3 is a view showing each step of the culvert reinforcing method of the present invention.

3 (a) to 3 (d), the present invention is characterized in that the lower slab 11, the upper slab 12 and both side ends of the lower slab 11 and the upper slab 12 are connected (A) a main bracket (21) coupled to the side wall (13) and having a through hole (214) formed on an upper surface thereof, the main bracket And a housing 22 which is detachably installed in the main bracket 21 and in which a housing space 23 in which a hydraulic jack 3 is accommodated is formed on both side walls 13 And the upper slab (12); (b) A hydraulic jack 3 is provided in the storage space 23 of the bracket member 2 and a support member 5 having a thread formed on the outer circumferential surface thereof is mounted on the upper end of the piston 31 of the hydraulic jack 3, 2) through the through hole (214) of the support member (5) so that an upper end of the nut member (6) protrudes; (c) installing a beam member (4) having a camber upwardly convexly so that both lower ends thereof are supported on the upper end of the hydraulic jack (3); (d) applying a hydraulic pressure to the hydraulic jack 3 to press the beam member 4 upward, thereby bringing the beam member 4 into close contact with the lower portion of the upper slab 12; (e) rotating the nut member (6) downward to closely contact the upper part of the bracket member (2); (F) releasing the hydraulic pressure of the hydraulic jack (3) to retract the piston (31) and removing the hydraulic jack (3); . &Lt; / RTI >

In the culvert reinforcing method of the present invention, (a) the bracket member 2 is fixedly installed at a position spaced apart from the upper slab 12 on the inner side surface of the both side walls 13 by using an anchor bolt or the like (A) of FIG.

The culvert 1 is composed of upper and lower slabs 11 and 12 and both sidewalls 13 and has a rectangular cross section as a whole and a PC culvert or the like can be used depending on the field conditions and the size of the culvert 1. [

3 (b)); (c) a beam member 4 having a camber formed in an upwardly convex shape is attached to the lower end of the hydraulic jack 3 3) (Fig. 3 (c)).

The beam member 4 applies a compressive force to the lower portion of the upper slab 12 through a step (d) to be described later. The beam member 4 can be made of a steel material such as an H-shaped steel or the like. .

The beam member 4 should not interfere with the junction of the upper slab 12 and the side wall 13. [ Therefore, when the inclined surface is formed inside the joining portion of the upper slab 12 and the side wall 13, it is preferable that the both upper ends of the beam member 4 form a chamfer in a shape corresponding to the inclined surface.

Next, (d) Hydraulic pressure is applied to the hydraulic jack 3 to press the beam member 4 upward, thereby bringing the beam member 4 into close contact with the lower portion of the upper slab 12 (FIG. 3 (d)).

The camber can be formed on the upper slab 12 because the beam member 4 with the camber is brought into close contact with the lower portion of the upper slab 12 and exerts an upward force on the lower portion of the upper slab 12. [

Therefore, since compressive force is applied to the lower part of the upper slab 12, which is concrete, the same effect as that of applying the prestress can be obtained.

That is, it is possible to prevent the upper slab 12 from sagging and to reinforce the lower portion, so that the upper load of the culvert 1 can be safely supported without increasing the thickness of the upper slab 12 or minimizing the thickness increase. Further, since sufficient space can be secured in the culvert 1, the water supply capability can be ensured.

FIG. 4 is a perspective view showing a coupling relation of the bracket member according to one embodiment, and FIG. 5 is a view showing each step of the culvert reinforcing method of the present invention when the support member and the nut member are provided.

4, the bracket member 2 is formed with a receiving space 23 in which the hydraulic jack 3 is received, and a through hole 23 communicating with the receiving space 23 on the upper surface thereof. (214) may be formed.

The storage space 23 is a space for storing the hydraulic jack 3 and the front of the bracket member 2 is opened to be used as a work passage for storing or removing the hydraulic jack 3 or the like.

The through hole 214 is formed on the upper surface of the bracket member 2 so as to communicate with the accommodating space 23 so that the support member 5 provided at the upper end of the piston 31 of the hydraulic jack 3 is supported by the bracket member 2 And is a passage that moves through the upper surface.

4, when the receiving space 23 and the through hole 214 are formed on the inside and the top surface of the bracket member 2, the supporting member 5 having the threads formed on the outer circumferential surface thereof in the step (b) A nut member 6 is attached to an upper portion of the support member 5 so that an upper end of the nut member 6 is engaged with the through hole 214 of the bracket member 2 at the upper end of the piston 31 of the hydraulic jack 3, (E) rotating the nut member 6 downward after the step (d) so as to be brought into close contact with the upper part of the bracket member 2; (F) releasing the hydraulic pressure of the hydraulic jack (3) to retract the piston (31) and then removing the hydraulic jack (3); .

5 (a) is a view after the steps (a) to (c) of the culvert reinforcing method of the present invention are performed. In the step (b), when the hydraulic jack 3 is installed on the bracket member 2, The threaded support member 5 is installed at the upper end of the piston 31 of the hydraulic jack 3 so as to protrude through the through hole 214 of the bracket member 2 and the upper end of the support member 5 (Refer to Figs. 4 and 5 (a)).

5 (b), the hydraulic jack 3 is jacked up and the supporting member 5 is pressed upward, thereby performing the step (d) of bringing the beam member 4 into close contact with the lower portion of the upper slab 12 .

At this time, the support member (5) moves upward through the through hole (214) of the bracket member (2).

5 (c), the nut member 6 is rotated downward to be brought into close contact with the upper portion of the bracket member 2 (step (e)). Then, as shown in FIG. 5 (d) The hydraulic pressure of the hydraulic motor 3 is released, the piston 31 is retracted, and the hydraulic jack 3 is removed (step (f)).

As described above, in the present invention, the hydraulic jack 3 can be removed by releasing the hydraulic pressure of the hydraulic jack 3 in step (f) after the support member 5 is fully pushed up. Therefore, since the hydraulic jack 3 can be dedicated, the number of required hydraulic jacks 3 can be greatly reduced.

In the step (e), the nut member 6 is brought into close contact with the upper part of the bracket member 2 so that the upper load is supported on the nut member 6. Thus, in the step (f) The hydraulic jack 3 can be removed.

6 is a perspective view showing a coupling relationship of the bracket member according to another embodiment.

6, the bracket member 2 is coupled to the side wall 13 and includes a main bracket 21 having the through hole 214 formed on the upper surface thereof and a main bracket 21 detachable from the main bracket 21 And a housing 22 in which the housing space 23 in which the hydraulic jack 3 is housed is formed.

That is, the bracket member 2 can be separated from the main bracket 21 and the housing 22, and the main bracket 21 and the housing 22 can be fixed to each other by bolting or the like.

The main bracket 21 is for permanently supporting the upper load during use of the culler 1 after completion of the construction and the housing 22 is for temporarily supporting the hydraulic jack 3. [

When the hydraulic jack 3 is removed in the step (f) after fixing the beam member 4, there is absolutely no need for a configuration for supporting the lower part of the hydraulic jack 3 during use of the cowling 1.

The bracket member 2 is separated from the main bracket 21 which is permanently installed and the housing 22 which is removed after fixing the beam member 4. In the step (f), the hydraulic jack 3, together with the housing 22, So as to save the steel material required for the housing 22.

In the embodiment of FIG. 6, the main bracket 21 and the housing 22 penetrate through the bolt at the side and are coupled to each other.

FIG. 7 is a perspective view showing the engagement relationship between the main bracket and the housing of the bracket member according to still another embodiment, and FIG. 8 is a perspective view showing the engagement relationship of the bracket member shown in FIG.

7 and 8, the main bracket 21 includes a rear plate 211 fixed to the side wall 13 and fixed to the side wall 13, A pair of side plates 212 protruding from the support plate 215 in the direction of the arrow A and a top plate 213 coupled to the top of the side plate 212 and having the through holes 214 formed at the center thereof, The housing 22 includes a bottom plate 221 on which the hydraulic jack 3 is mounted, a pair of side plates 222 provided on both sides of the top plate 221, And a latching part 223 protruding from the main bracket 21 and hooked on the support part 215 of the main bracket 21.

The bracket member 2 requires a back plate 211 for fixing to the side wall 13 and requires an upper plate 213 and a side plate 212 to support the upper load.

Thus, the main bracket 21, which is permanently held, can be composed of the rear plate 211, the side plate 212, and the top plate 213.

The housing 22 is provided with a lower surface plate 221 for supporting the lower portion of the hydraulic jack 3 when the hydraulic jack 3 is pressed and a side plate (not shown) for temporarily fixing the housing 22 to the main bracket 21 222) are required.

Therefore, the housing 22 to be removed after fixing the beam member 4 can be composed of the bottom plate 221 and the side plate 222.

In this case, the main bracket 21 and the beam member 4 can be fixed to each other by bolt-joining the side plates 212 and 222 like the embodiment of FIG. 6, And a locking part 223 protrudes horizontally from the upper end of the upper end of the side plate 222 of the housing 22 so that the locking part 223 is inserted into the locking part 223, May be engaged with each other so as to be hung on the support portion 215.

That is, the housing 22 is slid to the opened front face of the main bracket 21 so that the latching portion 223 is positioned above the support portion 215, so that the housing 22 can be installed or removed in the main bracket 21 have.

The hydraulic jack 3 is fixed to a lower surface plate 221 of the housing 22, Or removed.

9 is a cross-sectional view showing a coupling relationship between the beam member and the support member provided with the fixing portion.

As shown in FIG. 9, the beam members 4 may be provided at both lower ends with fixing portions 41 into which the upper ends of the support members 5 are inserted.

As a result, the support member 5 is caught by the fixing portion 41 formed at the lower portion of the beam member 4 and the support member 5 is not separated from the beam member 4, so that the support member 5 can be stably raised .

10 is a cross-sectional view showing the multiple culvert.

10, the culvert 1 may be formed of a multi-ply culvert comprising at least one central support wall 14 between the lower slab 11 and the upper slab 12. [

In the case of multi-wall culvert, the central support wall 14 can be removed at any stage prior to step (c).

Therefore, after the central support wall 14 is removed, the step (d) can be performed to reinforce the upper slab 12, so that the inner space of the culver 1 can be fully utilized while increasing the water passage capacity. In addition, the expenditure associated with restoration of the culvert (1) can be greatly reduced, such as the cost of removing the influent material concentrated in the vicinity of the central support wall (14).

The culvert 1 shown in Fig. 10 can also be applied to a dual culvert having one central support wall 14 or a multi-culter 1 having two or more central support walls 14. [

11 is a cross-sectional view of the culvert with the lower slab cut.

11, at one stage before the step (d), one point near both ends of the lower slab 11 can be cut along the longitudinal direction of the culvert 1. [

When the hydraulic jack 3 is jacked up and the beam member 4 is pressed, the beam member 4 not only buckles the upper slab 12 but also presses the lower slab 11 downward by the reaction. The both ends of the lower slab 11 may be cut before the beam member 4 is pressed by the hydraulic jack 3 to prevent the lower slab 11 from being deformed due to a moment.

That is, even if both ends of the lower slab 11 are cut and separated, the load due to the earth pressure on both sides of the culvert 1 is transmitted to the end of the lower slab 11 through the side wall 13, And both ends of the lower slab 11 are not supported, so that no bending deformation occurs.

In other words, only the degree of freedom of flexural deformation is imparted while retaining the restraint by the compressive force.

1: Culvert 11: Lower slab
12: upper slab 13: side wall
14: central support wall 2: bracket member
21: main bracket 211: rear plate
212: side plate 213: upper plate
214: through hole 215: support
22: housing 221: bottom plate
222: side plate 223:
23: storage space 3: hydraulic jack
31: Piston 4: Beam member
41: fixing part 5: supporting member
6: Nut member

Claims

A culvert reinforcement method for reinforcing the culvert 1 composed of the lower slab 11, the upper slab 12 and the side wall 13 connecting the lower slab 11 and both sides of the upper slab 12 As a result,
(a) a main bracket 21 coupled to the side wall 13 and having a through hole 214 formed on an upper surface thereof, and a main bracket 21 detachably installed in the main bracket 21, A bracket member 2 constituted by a housing 22 in which a receiving space 23 is formed is fixed at a position spaced apart from the upper slab 12 on the inner side of both side walls 13;
(b) A hydraulic jack 3 is provided in the storage space 23 of the bracket member 2 and a support member 5 having a thread formed on the outer circumferential surface thereof is mounted on the upper end of the piston 31 of the hydraulic jack 3, 2) through the through hole (214) of the support member (5) so that an upper end of the nut member (6) protrudes;
(c) installing a beam member (4) having a camber upwardly convexly so that both lower ends thereof are supported on the upper end of the hydraulic jack (3);
(d) applying a hydraulic pressure to the hydraulic jack 3 to press the beam member 4 upward, thereby bringing the beam member 4 into close contact with the lower portion of the upper slab 12;
(e) rotating the nut member (6) downward to closely contact the upper part of the bracket member (2); And
(f) releasing the hydraulic pressure of the hydraulic jack (3) to retract the piston (31) and removing the hydraulic jack (3); Wherein the reinforcing member is made of reinforced concrete.

delete

The method of claim 1,
The main bracket 21 includes a rear plate 211 which is fixed to the side wall 13 and is fixed to both sides of the front plate 211 and a supporting portion 215 is protruded horizontally A pair of side plates 212 and an upper plate 213 coupled to the upper side of the side plates 212 and having the through holes 214 formed at the center thereof,
The housing 22 includes a bottom plate 221 on which the hydraulic jack 3 is mounted, a pair of side plates 222 provided on both sides of the top plate 221, And a latching part (223) protruding from the main bracket (21) and hooked on the upper part of the support part (215) of the main bracket (21).

The method of claim 1,
Characterized in that a fixing portion (41) for inserting the upper end of the support member (5) is provided at both lower ends of the beam member (4).

The method of claim 1,
The culvert 1 is a multistory culvert 1 in which at least one central support wall 14 is provided between a lower slab 11 and an upper slab 12,
Wherein the central support wall (14) is removed at any stage prior to the step (c).

The method of claim 1,
Wherein at least one of the two ends of the lower slab (11) is cut along the longitudinal direction of the culvert (1) at any stage before the step (d).