Seismic-Resistant Internal Installation Mechanism for Panel-Type Retaining Wall Structure, Panel-Type Retaining Wall Structure Including the Same, and Method for Constructing the Same

Abstract

The seismic-resistant seismic-resistant mechanism for a panel-type retaining wall structure according to the present invention is a seismic-resistant seismic-resistant mechanism installed on the rear surface of a unit panel of a panel-type retaining wall structure or on an excavated ground surface, comprising an outer shell having a sealed receiving space formed inside, and a seismic-resistant fluid that is received in the receiving space and improves seismic resistance by reducing vibrations from the outside.

Description

Technology Field

[0001] The present invention relates to a seismic-resistant snow-retaining mechanism capable of reducing external vibrations and repairing cracks that occur in the backfill, a panel-type retaining wall structure including the same, and a method of constructing the same. Background Technology

[0002] Panel retaining walls are mainly used in cut sections to reduce earthwork volume and improve external aesthetics.

[0003] These panel-type retaining walls for cut slopes are constructed by installing reinforcing materials such as anchors or nails, and then filling the panels and the cut ground surface to secure the reinforcing materials to the panels. The basic operating principle of a panel-type retaining wall is to withstand the earth pressure acting on the panels and transfer this earth pressure to the ground through backfilling.

[0004] And depending on the type of reinforcement, the magnitude of the tensile force applied to the panel varies, but generally, the reinforcement is tensioned and then fixed to the panel. Since the panel may move or deform toward the cut slope during this process, part or all of the backfill space is filled with concrete to prevent this.

[0005] However, using concrete for backfilling in this manner presents a problem: when an earthquake occurs, concrete, which has a greater self-weight than soil, experiences increased inertial force, and the vibration phases of the ground and concrete become aligned, which can increase the risk.

[0006] In addition, as the amount of concrete filling increases, the heat of hydration increases, raising the likelihood of cracks forming inside the concrete.

[0007] In addition, concrete backfilling has the problem of reduced economic feasibility due to increased construction costs.

[0008] Therefore, a method to resolve these problems is required. Prior art literature

[0009] Korean Registered Patent No. 10-2002924 The problem to be solved

[0010] The present invention is an invention devised to solve the problems of the aforementioned prior art, and aims to provide a seismic-resistant seismic-resistant mechanism that improves the seismic resistance and durability of a panel-type retaining wall and also reduces construction costs, a panel-type retaining wall structure including the same, and a method for constructing the same.

[0011] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0012] The seismic-resistant snow-retaining mechanism of the panel-type retaining wall structure according to the present invention for achieving the above-mentioned purpose comprises, in a seismic-resistant snow-retaining mechanism installed on the rear surface of a unit panel of the panel-type retaining wall structure or on an excavated ground surface, an outer shell having a sealed receiving space formed inside, and a seismic-resistant fluid that is received in the receiving space and improves seismic resistance by reducing vibrations from the outside.

[0013] And the panel-type retaining wall structure of the present invention for achieving the above-mentioned purpose comprises a retaining wall that is erected on an excavated ground surface including a plurality of unit panels, a reinforcing member installed on the excavated ground surface to apply tensile force to the retaining wall, a backfilling section filled between the retaining wall and the excavated ground surface, and a seismic-resistant building device embedded in the backfilling section while installed on the rear surface of the unit panels or on the excavated ground surface, wherein the seismic-resistant building device comprises an outer shell having a sealed receiving space formed inside and a seismic-resistant fluid contained in the receiving space to reduce vibrations from the outside, and the seismic-resistant fluid flows out to the outside of the outer shell when the outer shell is damaged by an external force, seeps into a crack in the backfilling section, and solidifies.

[0014] In addition, the outer shell may be formed of a hard plastic or fiber-reinforced material having an elastic modulus greater than or equal to a preset elastic modulus.

[0015] And the above seismic fluid may be a liquid filled into the receiving space such that it has an amount less than the total capacity of the receiving space.

[0016] In addition, if the outer shell is damaged by an external force, the above seismic fluid may be discharged to the outside of the outer shell, seep into cracks that have formed in the backfill, and solidify.

[0017] In such cases, the above seismic fluid may have any one of the following components: silica fume slurry, pozzolan solution, ettringite-forming expander, lithium hydroxide solution, or polymer latex solution.

[0018] And the method for constructing a panel-type retaining wall structure according to the present invention for achieving the above-mentioned purpose comprises the steps of: (a) excavating the ground; (b) installing a reinforcing material on the excavated ground surface; (c) constructing a retaining wall by installing a plurality of unit panels on the excavated ground surface; (d) installing a seismic-resistant embankment on the rear surface of the unit panels or on the excavated ground surface; and (e) backfilling the rear of the retaining wall and applying tensile force to the retaining wall through the reinforcing material, wherein the seismic-resistant embankment comprises an outer shell having a sealed receiving space formed inside and a seismic-resistant fluid that is received in the receiving space and improves seismic resistance by reducing vibrations from the outside.

[0019] At this time, step (d) above may arrange a plurality of seismic-resistant structures at predetermined intervals along the length direction of the retaining wall.

[0020] In addition, if the outer shell is damaged by an external force, the above seismic liquid may be discharged to the outside of the outer shell, seep into cracks that have formed in the backfill, and solidify. Effects of the invention

[0021] The seismic-resistant snow-retaining mechanism for a panel-type retaining wall structure of the present invention, a panel-type retaining wall structure including the same, and a construction method thereof, which solves the above-mentioned problem, have the advantage of significantly improving durability by preventing compressive deformation of concrete and ensuring that the concrete structure is stably maintained even under external shocks such as earthquakes by installing a seismic-resistant snow-retaining mechanism filled with a seismic-resistant fluid inside the concrete backfill section filled between the unit panel and the excavated ground surface.

[0022] In addition, when the outer shell of a seismic-resistant snow-retaining device installed inside the backfill is damaged by external forces such as earthquakes, the seismic-resistant fluid contained inside is discharged to the outside and seeps into the cracks of the backfill and solidifies, thereby effectively repairing the cracks. This has the advantage of reducing maintenance costs of the structure in the long term and extending the lifespan of the panel-type retaining wall structure.

[0023] In addition, the present invention can reduce the self-weight of the entire structure by embedding a seismic-resistant mechanism inside the backfill section. This significantly improves seismic performance by reducing the inertial force of the structure during an earthquake and increases the overall stability of the structure by reducing the burden applied to the foundation ground.

[0024] Furthermore, the present invention has the advantage of reducing construction costs by decreasing the amount of backfill used for concrete, and allowing for efficient management of the construction period by shortening construction time.

[0025] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0026] FIG. 1 is a drawing showing the overall appearance of a panel-type retaining wall structure according to one embodiment of the present invention. FIG. 2 is a diagram schematically showing the entire process of a method for constructing a panel-type retaining wall structure according to one embodiment of the present invention. FIGS. 3 to 7 are drawings sequentially illustrating the process of constructing a panel-type retaining wall structure according to an embodiment of the present invention. FIGS. 8 and 9 are drawings showing various forms of a seismic-resistant snow-resistant device according to an embodiment of the present invention. Specific details for implementing the invention

[0027] In this specification, where a component (or region, layer, part, etc.) is described as being "on," "connected," or "combined" with another component, it means that it may be directly placed / connected / combined with the other component, or that a third component may be placed between them.

[0028] Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective illustration of the technical content.

[0029] "And / or" includes all one or more combinations that the associated configurations can define.

[0030] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0031] Additionally, terms such as "below," "lower side," "above," and "upper side" are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0032] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Additionally, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and are explicitly defined herein unless interpreted in an ideal or overly formal sense.

[0033] Terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0035] FIG. 1 is a drawing showing the overall appearance of a panel-type retaining wall structure according to one embodiment of the present invention.

[0036] As illustrated in FIG. 1, a panel-type retaining wall structure according to one embodiment of the present invention may be constructed by including a retaining wall (10), a reinforcing material (20), a backfill section (30), and a seismic-resistant retaining mechanism (100).

[0037] The retaining wall (10) includes a plurality of unit panels (11) and is installed upright on the excavated ground surface (G). At this time, each unit panel (11) is a basic unit constituting the panel-type retaining wall (10), and is formed to have a pre-set area and is installed continuously to form the overall area of ​​the retaining wall (10).

[0038] The shape, size, and material of such unit panel (11) are not specifically limited and can be manufactured in various sizes, shapes, and materials as needed.

[0039] The reinforcing member (20) is installed inside a hole (H) drilled in the excavated ground surface (G) and performs the function of applying tensile force to the retaining wall (10). For example, the reinforcing member (20) may be in the form of an anchor or a nail, and is fixed to the unit panel (11) while inserted into the ground to apply tensile force, thereby preventing the unit panel (11) from moving or deforming toward the ground cut surface.

[0040] The backfill (30) is filled between the retaining wall (10) and the excavated ground surface (G), and can provide structural stability as concrete is filled and hardened. That is, the backfill (30) transmits the earth pressure acting on the panel to the ground, thereby allowing the retaining wall (10) to maintain a stable standing state.

[0041] The seismic-resistant structure (100) is installed on the back of the unit panel (11) of the retaining wall (10) or on the excavated ground surface (G) and is embedded in the backfill section (30), and can perform the role of increasing structural stability against external vibrations such as earthquakes.

[0042] Detailed information regarding such an earthquake-resistant seismic-resistant device (100) will be described later, and below, the process of constructing a panel-type retaining wall structure as described above will be explained.

[0043] FIG. 2 is a schematic diagram showing the entire process of a method for constructing a panel-type retaining wall structure according to one embodiment of the present invention, and FIGS. 3 to 6 are diagrams showing the process of constructing a panel-type retaining wall structure according to one embodiment of the present invention in sequence.

[0044] As illustrated in FIG. 2, a method for constructing a panel-type retaining wall structure according to one embodiment of the present invention may include steps (a) to (e).

[0045] First, step (a) of excavating the ground is performed.

[0046] In this process, as shown in FIG. 3, the ground at the location where the retaining wall (10) is to be installed is excavated at a constant slope. This can be carried out by selecting an appropriate excavation technique depending on the characteristics of the ground, for example, mechanical excavation equipment can be used, or manpower can be utilized or blasting methods can be combined.

[0047] And the excavation depth and slope can be determined according to the height and stability of the designed retaining wall (10), and the excavated ground surface (G) can be leveled and flattened to be suitable for installing reinforcing material (20) and unit panel (11).

[0048] Next, step (b) of installing a reinforcing material (20) on the excavated ground surface (G) is performed.

[0049] In this process, as shown in FIG. 4, a hole (H) is drilled in the excavated ground surface (G), and a reinforcing material (20), such as an anchor or nail, is installed inside.

[0050] The reinforcing material (20) can be inserted into the ground to a certain depth and can be made of a material having sufficient strength, such as steel, alloy steel, or high-strength composite material. Additionally, the installed reinforcing material (20) can be fixed to the ground through a grout injection method.

[0051] Next, step (c) is performed to construct a retaining wall (10) by installing a plurality of unit panels (11) on the excavated ground surface (G).

[0052] As shown in FIG. 5, in this process, each unit panel (11) can be installed continuously with each other to form the structure of the entire retaining wall (10).

[0053] Afterwards, as shown in Fig. 6, step (d) of installing a seismic-resistant installation device (100) on the rear surface of the unit panel (11) or on the excavated ground surface (G) is performed.

[0054] In this process, multiple seismic-resistant structures (100) may be fixed to the rear of a unit panel (11) along the length direction of the retaining wall (10), or installed on an excavated flat ground surface (G) or an inclined ground surface (G).

[0055] In this process, a method may be applied in which a plurality of seismic-resistant

[0056] Next, step (e) is performed, in which backfilling is carried out at the rear of the retaining wall (10) as shown in FIG. 7, and tensile force is applied to the retaining wall (10) through the reinforcing material (20).

[0057] In this process, a backfill section (30) is formed by pouring and hardening concrete in part or the entire area between the retaining wall (10) and the excavated ground surface (G). This backfill section (30) can maintain the stability of the retaining wall (10) by transmitting the earth pressure acting on the unit panel (11) to the ground.

[0058] And thereafter, by applying tensile force to the retaining wall (10) through the reinforcing material (20), the construction of the panel-type retaining wall structure is completed.

[0059] Below, the seismic-resistant snow-resistant device (100) will be described in detail.

[0060] FIGS. 8 and FIGS. 9 are drawings showing various forms of an earthquake-resistant snow-resistant device (100) according to one embodiment of the present invention.

[0061] As illustrated in FIGS. 8 and 9, a seismic-resistant snow-resistant device (100) according to one embodiment of the present invention may include an outer shell (110) and a seismic-resistant fluid (120) contained within the outer shell (110).

[0062] The outer shell (110) has a sealed receiving space (111) formed inside it. The shape of the outer shell (110) provides structural stability and can have a shape that can effectively reduce external shocks such as earthquakes.

[0063] In addition, in this embodiment, the outer shell (110) may be formed from a hard plastic or fiber reinforcement material (20) having an elastic modulus greater than or equal to a preset elastic modulus. However, the material constituting the outer shell (110) is not limited to such materials.

[0064] In addition, the shape of the outer shell (110) may be formed in a cylindrical shape as shown in FIG. 8, for example, or in a spherical shape as shown in FIG. 9.

[0065] This is because, in the case of a cylindrical or spherical shape, force can be received evenly from all directions, and accordingly, the seismic-resistant snow-resistant device (100) can avoid force concentration in a specific direction, thereby effectively dispersing and absorbing external shocks.

[0066] However, it is not necessarily limited to the shape of a cylinder or a sphere, and any shape that forms a space inside is possible.

[0067] The above seismic-resistant fluid (120) is contained in the receiving space (111) of the seismic-resistant structure (100) and performs the role of reducing external vibrations by reducing the inertial force and changing the vibration phase to reduce the activity force generated by the earthquake.

[0068] At this time, any fluid can be applied without restriction as the seismic fluid (120). For example, the seismic fluid (120) may be water, or various types of liquids other than water may be used depending on the purpose, such as the target vibration phase.

[0069] Additionally, the above seismic fluid (120) may be a gas such as air. When a gas is used, it can be configured to respond to external pressure by varying the pressure, while also improving seismic performance by varying the vibration phase.

[0070] In addition, in this embodiment, when a liquid is used as the seismic fluid (120), it may be filled into the receiving space (111) in an amount less than the total capacity of the receiving space (111), so that the seismic fluid (120) maintains smooth fluidity within the receiving space (111) and can absorb impact energy through the movement of the liquid during an external impact.

[0071] Meanwhile, the seismic fluid (120) may have the property of flowing out of the outer shell (110) and seeping into cracks in the backfill (30) and solidifying when the outer shell (110) is damaged by an external force.

[0072] In such cases, when the outer shell (110) is damaged by an earthquake or the like and cracks occur in the concrete constituting the backfill (30), the seismic fluid (120) contained within the outer shell (110) seeps into the cracks in the concrete, expands, and solidifies, thereby repairing the cracks, and the structural strength of the entire retaining wall structure can be restored without performing a separate repair process.

[0073] And the seismic fluid (120) applied in such cases may have the property of expanding and hardening in response to the alkali ions of concrete to repair cracks, and may, for example, have any one of the following components: silica fume slurry, pozzolan solution, ettringite-forming expansion agent, lithium hydroxide solution, or polymer latex solution, and it is also possible for them to exist in a gaseous state or in a mixed form of liquid and gas.

[0074] For example, silica fume is a material composed of fine silicon oxide particles that can be mixed with water and used in the form of a slurry. It can make concrete harder by reacting with the alkali in concrete to expand, and by the fine silica particles reacting with calcium hydroxide to form high-strength silicate.

[0075] Pozzolan is composed of volcanic ash, silica fume, fly ash, etc., and reacts with calcium hydroxide to form a strong silicate structure. Accordingly, pozzolanic materials can have the property of expanding and solidifying by reacting with alkali within concrete.

[0076] Ettringite-forming expansive agents are materials added to concrete that increase volume through chemical reactions, and aluminum and gypsum can react with alkali ions to prevent cracking and improve the density of concrete.

[0077] Lithium hydroxide can be used to inhibit the alkali silica reaction (ASR) and can stabilize the structure by reacting with the alkali in concrete to form lithium silicate.

[0078] Polymer latex can be added to concrete to improve flexibility and durability, and can react with alkali to strengthen the microstructure of concrete and impart expansion and solidification characteristics.

[0079] As described above, the present invention can prevent compressive deformation of concrete and significantly improve durability by ensuring that the concrete structure remains stable even under external shocks such as earthquakes, by installing a seismic-resistant structure (100) filled with seismic-resistant fluid (120) inside a concrete backfill (30) that is filled between a unit panel (11) and an excavated ground surface (G).

[0080] In addition, when the seismic fluid (120) has solidifying properties, the seismic fluid (120) contained within is discharged to the outside and seeps into the cracks of the backfill (30) and solidifies when the outer shell (110) of the seismic-resistant structure (100) installed inside the backfill (30) is damaged by an external force such as an earthquake. This allows the cracks to be effectively repaired. This reduces the maintenance costs of the structure in the long term and extends the lifespan of the panel-type retaining wall structure.

[0081] As described above, preferred embodiments according to the present invention have been examined. It is obvious to those skilled in the art that, in addition to the embodiments described above, the present invention may be embodied in other specific forms without departing from its spirit or scope. Therefore, the embodiments described above should be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the description above but may be modified within the scope of the appended claims and their equivalents. Explanation of the symbols

[0082] G: Ground surface H: Perforation hole 10: Retaining wall 11: Unit Panel 20: Reinforcement material 30: Backfill 100: Seismic-resistant snow-resistant equipment 110: Outer shell 111: Reception space 120: Seismic fluid

Claims

Claim 1 A seismic-resistant structure installed on the rear surface of a unit panel of a panel-type retaining wall structure or on an excavated ground surface, comprising: an outer shell having a sealed receiving space formed inside; and a seismic-resistant liquid filled within the receiving space to have an amount less than the total capacity of the receiving space, configured to flow within the receiving space when an external force occurs to reduce the external force, wherein the seismic-resistant liquid has a component that is discharged to the outside of the outer shell when the outer shell is damaged by an external force, seeps into a crack formed in the backfill between the retaining wall structure and the ground surface, and solidifies, and the outer shell is formed of a hard plastic or fiber-reinforced material having an elastic modulus greater than or equal to a preset elastic modulus. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 A retaining wall erected on an excavated ground surface including a plurality of unit panels; a reinforcing member installed on the excavated ground surface to apply tensile force to the retaining wall; a backfill portion filled between the retaining wall and the excavated ground surface; and a seismic-resistant installation device embedded in the backfill portion while installed on the rear surface of the unit panels or on the excavated ground surface; wherein the seismic-resistant installation device comprises an outer shell having a sealed receiving space formed inside; A seismic-resistant liquid is included, which is filled within the receiving space in an amount less than the total capacity of the receiving space and configured to flow within the receiving space and reduce the external force when an external force occurs; wherein the seismic-resistant liquid has a component that is discharged to the outside of the outer shell when the outer shell is damaged by an external force, seeps into a crack formed in the backfill between the retaining wall structure and the ground surface, and solidifies, and the outer shell is formed of a rigid plastic or fiber-reinforced material having an elastic modulus greater than or equal to a preset elastic modulus, forming a panel-type retaining wall structure. Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 (a) a step of excavating the ground; (b) a step of installing reinforcing material on the excavated ground surface; (c) a step of constructing a retaining wall by installing a plurality of unit panels on the excavated ground surface; (d) a step of installing a seismic-resistant building mechanism on the rear surface of the unit panels or on the excavated ground surface; and (e) a step of backfilling the rear of the retaining wall and applying tensile force to the retaining wall through the reinforcing material; wherein the seismic-resistant building mechanism comprises an outer shell having a sealed receiving space formed inside; A method for constructing a panel-type retaining wall structure, comprising: a seismic-resistant liquid filled within the receiving space to have an amount less than the total capacity of the receiving space, configured to flow within the receiving space and reduce the external force when an external force occurs; wherein the seismic-resistant liquid has a component that is discharged to the outside of the outer shell when the outer shell is damaged by an external force, seeps into a crack formed in the backfill between the retaining wall structure and the ground surface, and solidifies; and wherein the outer shell is formed of a hard plastic or fiber-reinforced material having an elastic modulus greater than or equal to a preset elastic modulus. Claim 10 In claim 9, the above step (d) is a method for constructing a panel-type retaining wall structure, wherein a plurality of seismic-resistant installation devices are arranged at predetermined intervals along the longitudinal direction of the retaining wall. Claim 11 delete

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