KR100750385B1 - Gravity type retaining wall install construction - Google Patents

Abstract

A gravity type retaining wall structure is provided to prevent the retaining wall structure from being eroded by preventing water from being leaked through a movement joint or a crack portion. A gravity type retaining wall structure comprises a water stop plate(10), a silica layer, and a finishing concrete section(14). The water stop plate is fixed to a tangential surface of a retaining wall(1) through an anchor. The water stop plate(10) is made from fiber glass reinforced plastic having great tensile strength and includes a plurality of hollow pipes which are longitudinally connected to each other. The silica layer is coated on front and rear surfaces of the water stop plate(10) to ensure sufficient adhesive force. The finishing concrete section(14) is casting on the front of the water stop plate(10). A plurality of drainage holes are formed in the longitudinal tangential direction of the water stop plate(10).

Description

Gravity type retaining wall install construction

1 is a cross-sectional view of the construction of gravity retaining wall installation structure according to the present invention.

2 is an enlarged view illustrating main parts of an enlarged main part of the present invention;

Figure 3 is a perspective view of the index plate applied to the present invention.

<Description of Signs of Major Parts of Drawings>

1.Dam Surface

10.Indicator Plate

12 ...

14 ... finish concrete

100.Hollow pipe

102 ... Rib

104 ... Drainage Groove

The present invention relates to a gravity retaining wall installed in rivers, rivers, etc. for the purpose of fresh water, and in particular, by installing a water stop plate for preventing leakage within the construction of the gravity retaining wall through the expansion flow joint of the dam and cracks The present invention relates to a gravity retaining wall installation structure that effectively prevents leakage and induces drainage to prevent corrosion and stiffness degradation in the retaining wall structure.

Retaining walls, which are installed for fresh water in rivers, etc., are generally constructed using concrete to ensure sufficient support rigidity due to back pressure.

Concrete structures continuously shrink and expand depending on other conditions such as curing, temperature, vibration, and ground movement.

Shrinkage and expansion have a destructive effect on the entire structure, so in order to cushion them, expansion concrete joints (MOVEMENT JOINT or EXPANSION JOINT) are installed in large-scale concrete structures such as dams. Accordingly, the destructive effects of the structure are alleviated, but leakage occurs through the joint.

In the case of severe leaks, the structure may age, deteriorate, and even cause breakage and collapse.

In particular, fresh water can cause huge loss of treasury due to leakage of purified drinking water, and if the leakage is prolonged, structural rigidity may be reduced due to corrosion of reinforcing steel bars, etc. There is a problem in that new cracks are generated, and in severe cases can lead to structural collapse.

The present invention is to solve the above-mentioned problems, by building a water plate inside the retaining wall to effectively block the leakage through the expansion joint (MOVEMENT JOINT or EXPANSION JOINT) and crack (CRACK) of the concrete structure The purpose is to provide a gravity retaining wall installation structure that can prevent internal corrosion and stiffness degradation of the retaining wall structure due to leakage.

In addition, the present invention has another object to prevent the occurrence of additional cracks by inducing drainage of the leaked water when the water penetrates into the retaining wall structure due to the cracks.

In order to achieve the above object, the present invention, in the retaining wall installed in rivers, rivers, etc. for the purpose of fresh water, is fixed to the retaining wall normal surface subjected to back pressure through an anchor, the hollow tube having an inner hollow layer is continuously up and down Gravity retaining wall installation structure including a water plate of connected form FRP material, a silica layer applied to the front and back of the water plate to secure adhesion to concrete, and a finishing concrete placed in front of the water plate for finishing Is provided.

Here, the bellows-shaped ribs may be padded in the hollow tubes of the index plates in the left and right width directions of the hollow tubes. In this case, it is possible to secure a sufficient elastic bearing force against the back pressure can improve the structural stability of the dam.

Further, according to an embodiment of the present invention, drain grooves may be formed at equal intervals in the vertical normal direction of the index plate. In this case, when the leakage occurs due to the cracks generated on the finish concrete on the front surface of the index plate, it is possible to prevent additional cracks by inducing drainage at the same time.

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

1 is a cross-sectional view showing a gravity retaining wall mounting structure according to the present invention, Figure 2 is an enlarged view showing the main portion of the main structure of the present invention.

1 to 2, the present invention includes a water plate 10 fixed through an anchor 110 for the purpose of blocking leakage on the retaining wall method surface 1 subjected to back pressure by water load. The index plate 10 is made of FRP material (fiber glass reinforced plastic) having a high tensile strength and strong against external impacts in a form in which the hollow tube 100 having an inner hollow layer is continuously connected up and down.

Preferably, as described above, the silica layer 12 is applied to the front and rear surfaces of the water stop plate 10 installed on the retaining wall method 1 to secure concrete adhesion. The silica layer 12 may be a quantitative mixture of a liquid adhesive such as mortar or epoxy resin and silica to apply on the index plate 10.

Furthermore, the finish concrete 14 is poured on the front surface of the index plate 10 to which the silica layer 12 is applied to protect the index plate 10. The main part configuration of the present invention will be described in more detail.

Figure 3 is a perspective view of the index plate applied to the present invention.

Referring to FIG. 3, the index plate 10 is a hollow tube 100 having an inner hollow layer as described above. It is composed of an elliptical shape with a long axis in the direction. In this case, the clearance between the finishing concrete and the dam surface 1 is minimized while safely supporting the finishing concrete 14 which is subjected to a large hydraulic pressure by the water load, thereby ensuring sufficient stability of the structure.

Preferably, a bellows-type rib 102 may be padded in the hollow tube 100 inside each hollow plate 100 in the left and right width directions of the hollow plate 100. In this case, when the finishing concrete 14 is stretched or shrunk in the left and right width directions according to the external temperature change, the index plate 10 is elastically deformed to some extent to actively cope with the change amount.

More preferably, drain grooves 104 may be formed at equal intervals in the longitudinal normal direction of the front plate 10. In this case, cracks are generated in the finished concrete installed on the front surface of the index plate 10, thereby preventing leakage when the leak occurs and inducing drainage to the lower side at the same time.

Looking at the operation and effects of the present invention made of the above configuration are as follows.

According to an embodiment of the present invention, the expansion plate (MOVEMENT JOINT or EXPANSION JOINT) and crack (CRACK) of the concrete structure as the index plate 10 is installed inside the retaining wall surface that is directly affected by the water load when building the gravity retaining wall Leakage through the site is blocked. Therefore, the leakage of the inside of the dam structure is prevented or the rigidity is reduced due to leakage.

Here, the index plate 10 applied to the present invention has a form in which the hollow tube 100 having a hollow layer is continuously connected up and down, and inside each hollow tube 100 in the left and right width directions of the hollow tube 100. Bellows-type ribs 102 are provided. Therefore, when the finishing concrete 14 is stretched or shrunk according to the external temperature change, the index plate 10 is elastically deformed to some extent in the width direction to actively cope with the change amount. As a result, dam structural defects due to elongation or shrinkage of concrete are prevented.

In addition, even if water due to leakage penetrates into the dam structure due to the cracks, the infiltrated water is drained to the lower side of the dam along the drain groove 104 formed in the index plate 10. Therefore, it is possible to prevent the occurrence of additional cracking, and to prevent corrosion of the structure and deterioration of stability due to the infiltration of moisture.

As described above, according to the gravity retaining wall installation structure of the present invention, the leakage of water is blocked by the index plate, and the corrosion and stiffness of the retaining wall structure due to the leakage are prevented from being lowered, thereby achieving a more stable structure.

In addition, even if water penetrates into the retaining wall structure due to the cracks, drainage is induced to prevent additional cracks from leaking.

What has been described above is only one embodiment for carrying out the present invention, and the present invention is not limited to the above-described embodiment, and the present invention is made without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in this field will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (3)

An index plate of an FRP material fixed to the retaining wall receiving surface under back pressure through an anchor and having a hollow pipe having an inner hollow layer connected in succession up and down; A silica layer coated on the front and rear surfaces of the index plate to secure adhesion with concrete; In the gravity retaining wall configured to include; Finishing concrete poured in front of the index plate for finishing, Gravity retaining wall installation structure characterized in that the drain groove is further formed at equal intervals in the front longitudinal normal direction of the index plate. delete delete

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