KR100729621B1 - Lower reinforcement structure of the bridge well tube foundation - Google Patents

Abstract

A lower reinforcing structure for a well foundation of a bridge is provided to increase the safety of a bridge, to increase convenience on maintenance and to cut down on management expenses by keeping a well foundation strongly at the initially installed state against buckling phenomenon and protecting the outer surface filled with water. The lower reinforcing structure for a well foundation of a bridge comprises a pair of semicircular connecting fixtures(10) formed on the outside of a pier(2) located on a well foundation(1) and provided with at least two or more bolt holes(12) to couple with bolts, a rubber connecting plate(20) installed to the outside of the well foundation and provided with plural hanging grooves(22), a spacer(30) provided with through holes(32) formed correspondingly to the bolt holes of the well foundation to fasten with bolts, a joining flange(34) formed on the bottom and hanging projections(36) formed on the inside to hang on the hanging grooves of the rubber connecting plate, a connecting post(40) joined perpendicular to the joining flange of the spacer and provided with a guide hole(42) and a fixing hole(44), a fixing mesh(50) fixed on the lower part of the connecting post and provided with a connecting projection(52) to be inserted to the fixing hole of the connecting post, and a lifting mesh(60) installed on the upper part of the connecting post and provided with a moving projection(62) to be inserted to the guide hole of the connecting post and a buoy(64) to be reciprocated vertically by buoyancy.

Description

Lower reinforcement structure of the bridge well tube foundation

1 is an exploded perspective view showing the configuration of the lower reinforcement structure of the bridge well basin foundation according to the present invention,

Figure 2 is a side cross-sectional view showing the installation state of the lower reinforcement structure of the bridge well basin foundation according to the present invention,

3 is a plan view showing the configuration of the lower reinforcement structure of the bridge well basin foundation according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: well base 2: pier

10: semi-circular connection fixture 12: bolt hole
20: rubber connecting plate 22: locking groove
30: space holder 31a, 31b: vertical portion, horizontal portion
32: through hole 34: joining flange
36: hanging projection
40: connection post 42: guide ball
44: fixing hole
50: fixed mesh network 52: connecting projection
60: up and down mesh network 62: moving projection

64: float

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The present invention relates to a lower reinforcing structure of a bridge well basin foundation, and more particularly, is connected to a well basin foundation to maintain a vertically standing initial installation state of a well basal foundation from scour phenomenon occurring in a well basal foundation. The lower reinforcement structure of the bridge well basin to improve the safety of the entire bridge, the convenience of maintenance and the reduction of the management cost can be achieved and the effective protection of the fresh outer surface can be achieved.

In general, civil engineering is the science and life that has existed with human history.

In English, the word Civil is used. In a dictionary, the word originally means "civilization, society."

In other words, all of civilization, history, and life of our humanity are applicable. Civil engineering includes, for example, building houses, building roads, and building structures such as dams and reservoir ports.

In modern times, the fields of ships, ships, and underground spaces are very wide and diverse.

This is where the word engineering comes, meaning engineering means getting maximum safety and effectiveness at the lowest cost.

Therefore, civil engineering has the most economical effect on the construction of all fields of society.

The detailed fields of civil engineering are as follows.

Structural engineering (bridges, buildings, railways, subways, highways, dams, ports, etc.)

Soil engineering (retaining wall, soft ground treatment, road, dam, underground structure, landfill etc.)

Hydraulic engineering (dam, sewer, water supply, dam etc.)

Environmental Engineering (Water, Wastewater, Garbage Landfill, Groundwater Pollution, Air Pollution, etc.)

Traffic engineering (railroad, subway, highway, etc.)

Surveying Engineering (Aeronautical Surveying, Satellite Surveying, Bridges, Buildings, Railways, Subways, Highways, Dams, etc.)

Here, the bridges belonging to the above-described structural engineering or survey engineering are divided into upper and lower structures, which are generally described. The upper structure is a portion directly supporting a vehicle load, which is composed of a top plate frame and a mold, and The structure is a part that transfers the load from the superstructure to the ground and is composed of shifts, piers and foundations (pile foundations, well foundations, etc.).

As such, the bridges constructed on the sea among the upper and lower bridges are not only difficult to construct, but also very difficult to maintain after construction.

In particular, the scour phenomenon is rapidly progressed by a predetermined spacing part naturally formed between the inner diameter of the underwater rock bed hole formed by underwater blasting at the construction stage and the outer diameter of the well base embedded therein, thereby supporting the well base. This is because it causes problems such as causing subsidence of the underwater rock bed.

This not only significantly shortened the service life of the bridge, but also provided a cause of the problem of causing a large accident such as falling down due to a decrease in bearing capacity.

Therefore, in recent years, various methods have been sought to cure the above problems.

For reference, the healing methods that have been taken so far are the lower outer walls of the well base and the underwater rock bed cut out to cope with the flow rate, depth, pier width and well size, which are the main factors affecting scour. It was to install a sandstone, a gabion, a concrete block utilizing waste concrete, etc. in a predetermined spaced space formed between them.

This has the advantage of securing a certain degree of stability to scour as well as construction and flexibility, economics and maintenance, while there are a number of problems as follows.

If you list them in order, they are as follows.

First, when the flow velocity is rapidly accelerated by climatic conditions such as bad weather, there is a problem in that it is swept away with soil and effectively does not effectively protect the foundation of the well.

Second, the parts swept through continuous observation due to the above-mentioned reasons have to be supplemented and installed at that time, so there are inconveniences in maintenance and uneconomical problems.

In addition to the above-mentioned problem, the well basin part has a problem that partial breakage is easily caused by friction due to a large amount of foreign matter (soil, crushed stone, wood, etc.) swept down by the water stream, and also it is fresh water for a long time. There was a problem that the corrosion of the outer wall caused by the serious phenomenon occurs.

However, until now, when such a problem phenomenon occurs at the foundation of the well, only the development for achieving the repair is focused on, and there is little development of a technology capable of initially responding to the above-described problem.

Accordingly, in recent years, there is an urgent need for the development of a technology capable of healing the above-mentioned problems and at the same time fundamentally reinforcing the wells of the wells.

The present invention has been made in view of the conventional problems as described above, the purpose is to provide a connection to the well base, the vertical standing of the base of the well from the scour phenomenon occurring in the base of the well The lower reinforcement structure of the foundation of the bridge well is designed to maintain the installation state and to effectively protect the fresh surface of the fresh water so that the overall safety, convenience of maintenance and reduction of management cost can be achieved. To provide.

Specific means of the present invention for achieving the above object,
It consists of a pair of semi-circular steel structures that can be connected to the pier outer periphery of the piers located on the foundation of the well, and the semi-circular connecting fixture is formed on the outer surface of each semi-circular steel structure is formed with several bolt holes for bolting ;
A rubber connection plate which is connected to the outer surface of the well base and is installed in a wrapping form, and has several locking grooves formed on all sides;
It is installed and fixed on all sides of the well base, but the upper end is bent in the inward direction to form a bolt connection by matching the centrifugal to the bolt hole formed on the outer periphery of the pair of semi-circular connecting fixtures connected to the pier The through hole is formed, the lower end is bent toward the outer direction is formed with a joining flange to form a joint, the inner side can be a vertical portion can be caught in the locking groove formed in the rubber connection plate A gap holder having a locking protrusion formed thereon;
A connection post which is installed in a vertically standing shape on the joining flange portion of the spacing holder, and upper and lower sides of the connecting post are integrally formed with guide holes and fixing holes;
Inserted in the lower portion between the connecting posts positioned in a vertically standing state at a predetermined distance from all sides of the well base, inserted into the fixing holes formed on both sides of the lower side of the connecting post to enable such insertion fixing on both sides A fixed mesh network having connection protrusions formed therein;

Is inserted into the upper portion between the connecting posts located in a vertically standing state on the basis of the well, the base can be inserted into the guide hole formed on both sides of the upper side of the connecting post to enable such insertion connection on both sides The moving projection is formed, and the upper and lowering so that the lifting and lowering operation by buoyancy is characterized in that it comprises a lifting and lowering mesh network having a buckle on the upper end integrally.

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Hereinafter, the configuration of the present invention in detail with reference to the drawings.

1 is an exploded perspective view showing the configuration of the lower reinforcement structure of the bridge well basin foundation according to the present invention, Figure 2 is a side cross-sectional view showing the installation state of the lower reinforcement structure of the bridge well basin foundation according to the present invention, 3 is a plan view showing the configuration of the lower reinforcement structure of the bridge well basin foundation according to the present invention.

For reference, in describing the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators.

Therefore, the definition should be made based on the contents throughout the specification.

As shown in the outer periphery of the piers (2) located on the foundation of the well (1) consists of a pair of semi-circular steel structure, the bolt hole 12 is bolted to the outer surface of each semi-circular steel structure At least two semi-circular connecting fixtures 10 formed are fastened and fixed using a bolt.
In addition, the outer surface of the well base 1 is connected to the rubber material connecting plate 20 in which several locking grooves 22 are formed in all directions and is connected to each other. The upper end formed to be bent in all directions in all directions, the connection can be made by matching the centrifugal to the bolt hole 12 formed on the outer periphery of the pair of semi-circular connecting fixture 10 connected to the pier (2) A through hole 32 is formed, and a joining flange portion 34 capable of forming a join is formed at a lower end formed to be bent in an outward direction, and a rubber material is formed on an inner surface, which may be referred to as a vertical portion 31a. The gap holder 30 is formed to be connected to the locking groove 22 formed in the connecting plate 20, the locking projection 36 is formed, which is located in the lower portion of the gap holder 30 Guide flanges 34 have upper and lower sides on both sides. It is 42 and the fixing hole 44 is connected to post 40, which is integrally formed is bonded to the installed vertical standing form.
In addition, the lower portion between the connecting post 40 positioned in a vertical standing state at a predetermined distance on all sides of the well base 1 is inserted into the fixing hole 44 formed on both sides of the lower side of the connecting post 40 on both sides. Fixing mesh network 50 is formed is fixed to the connecting projection 52 which can form a, both sides of the upper side between the connecting posts 40 in the vertical standing state in the four sides of the well base (1) A moving protrusion 62 is formed in the guide hole 42 formed at both upper sides of the connection post 40, and the upper portion 64 is provided at the upper portion so that the lifting and lowering operation by buoyancy can be performed. The mesh network 60, which is connected and installed, is configured to be connected to the lifting and lowering operation.

The following describes the operational effects of the present invention with reference to the above technical components.

First, the construction method is briefly described to help understanding as follows.

At the time of construction, first, a pair of semi-circular connecting fixtures 10 having a plurality of bolt holes 12 are formed on the outer periphery of the lower portion of the piers 2 located on the well base 1 so that bolts can be fastened to both sides. At the same time as fixing the connection using a bolt, the outer surface of the well base (1) may be installed in the form of wrapping the rubber material connecting plate 10 is formed with a locking groove 12 on all sides.
Then, the bolt hole 12 is formed on the outer periphery of the pair of semi-circular connecting fixtures 10 connected to the pier 2 at the upper end formed to be inwardly inclined in all directions of the well base 1. The through hole 32 is formed to match the centrifugal to the bolt connection is formed, the lower end bent to the outer direction is formed with a joining flange portion 34 to form a joint, the vertical portion ( 31a) may be bolted to the interval holder 30 is formed with a locking projection 36 that can be caught in the locking groove 22 formed in the rubber connecting plate 20 on the inner surface.
Here, when the spacing holder 30 is installed, the engaging projection 36 formed on the inner surface of the vertical portion 31a of the spacing holder 30 is formed on the outer circumferential edges of the rubber connecting plate 10. It should be positioned to be inserted into the locking groove 22 is fixed.
After the installation is completed, the connecting posts 42 and the fixing holes 44 are integrally formed at both the upper and lower sides of the joint flange portion 34 positioned at the lower portion of the spacing holder 30. 40) may be installed in a vertically erect form.
At this time, the fixed mesh network is formed in the lower portion between the connecting posts 40 to be bonded to the connection projections 52 that can be inserted into the fixing hole 44 formed on both sides of the lower side of the connecting post 40 on both sides ( 50 is fixedly positioned, the upper side is formed with a moving projection 62 which can be inserted into the guide hole 42 formed on both sides of the upper side of the connecting post 40 on both sides, the upper portion by the buoyancy, The installation is completed when the lifting and lowering mesh net 60 is installed to be connected to the lifting and lowering mesh net 60 to which the lowering 64 is connected so that the lowering operation is possible.
In the present invention installed as described above, the horizontal portion 31b positioned at the lower portion of the spacing holder 30 connected to the four sides of the well base 1 during actual use comes into contact with the ground in the form of a cross placed in water. Of course, even if the scour phenomenon occurs in a specific portion of the well base 1, it is possible to stabilize the vertical standing installation state of the well base 1.
That is, even if the horizontal portion 31b of the spacing holder 30 extends relatively long in all directions of the well base 1, the scour phenomenon occurs even in the well base 1. This is because the phenomenon in which the well base 1 becomes unstable can be prevented in advance.
And, the outer wall surface of the well basin base (1) located in the water is sealed so as to block the outside by the rubber connecting plate 20 installed in a wrapped form on the outer surface of the well basin base (1) It is possible to delay the phenomenon that the outer wall surface of the bridge foundation 1 is polluted and corroded, and as a result, it is possible to achieve the effect of extending the life of the bridge for a long time.
In addition, all sides of the well base 1 are provided with fixed mesh nets 50 and the rising and lowering mesh nets 60 at predetermined intervals, so that various foreign matters are transferred to the well base 1 side by water flow. It will be able to block access to water and floats (soil, crushed tree branches, etc.).
Therefore, it is possible to prevent the phenomenon in which foreign matters and floating matters from friction with the well base 1 and thus prevent the partial breakage of the well base 1 in advance.
In particular, the lifting and lowering mesh net 60 can be accompanied by the lifting and lowering motion by the buoy 64 according to the water depth that changes from time to time, floating matters such as tree branches moving along the surface of the well (1) It can be transmitted to the bed to prevent the phenomenon of friction.

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For reference, the present invention may be variously modified and may take various forms. However, in the detailed description of the present invention, only specific embodiments thereof are described.

Therefore, it is to be understood that the invention is not to be limited to the specific forms referred to in the description, but rather to include all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims. It must be understood.

As described above, the present invention connects and installs in the well base so that it is possible to firmly maintain the vertically standing initial installation state of the well base from the scour phenomenon occurring in the well base part, Outer surface protection of the foundation of the well can be effectively achieved, thereby improving the safety and maintenance convenience of the entire bridge, and also reducing the management costs.

Claims (1)

Bolt holes (12) consisting of a pair of semi-circular steel structure that can be connected to the outer periphery of the piers (2) located on the well base (1), the outer surface of each semi-circular steel structure (12) A semicircular connecting fixture (10) having several); A rubber connection plate 20 connected to the outer surface of the well base 1 and being installed in a wrapping form, and having several locking grooves 22 formed on all sides; Bolted holes formed on the outer periphery of the pair of semi-circular connecting fixture 10 connected to the pier (2) is fixed to the four sides of the well base (1), but bent to the inner direction 12) is formed with a through hole 32 to form a bolt connection by matching the centrifugal, and at the lower end bent to the outer direction is formed a joining flange portion 34 to form a joint, the vertical portion An interval surface 30 having an engaging surface 36 formed on the inner surface, which may be referred to as 31a, formed in the engaging groove 22 formed in the rubber connecting plate 20; The connecting post is installed in the form of vertically standing on the joining flange portion 34 of the spacing holder 30, the upper and lower sides of the connecting post (42) and the fixing hole 44 is formed integrally ( 40); The connection post 40 is fixed to the lower portion between the connecting post 40 positioned in a vertically standing state at a predetermined distance on all sides of the well base 1, and to enable such insertion fixing to both sides. A fixed mesh network 50 having a connection protrusion 52 formed therein to be inserted into the fixing hole 44 formed at both lower sides of the; Is inserted into the upper portion between the connection post 40 located in the vertically standing state on the four sides of the well base (1), on both sides of the connection post 40 to enable such an insertion connection on both sides A moving projection 62 is formed in the guide hole 42 formed therein, and the upper and lower mesh nets 60 are provided with the buckle 64 at the upper end thereof so that the lifting and lowering operation by buoyancy is possible at the upper part. The lower reinforcement structure of the bridge well foundation.

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