Insulation layer integrated PC prefabricated retaining wall structure

Abstract

The present invention relates to an insulation layer integrated PC prefabricated retaining wall structure designed to secure excellent thermal insulation performance without separate on-site insulation construction during retaining wall construction and to increase construction stability through precise spacing and binding between panels, comprising: an inner panel forming the inner wall of the retaining wall; an outer panel spaced apart from the inner panel to form the outer wall of the retaining wall and forming a pouring space for pouring concrete between the inner panel and the outer panel; an integrated insulation part installed integrally on the inner surface of the inner panel facing the outer panel; a plurality of spacing support beams spaced apart along the space between the inner panel and the outer panel to support the gap between the inner panel and the outer panel; reinforcing steel bars installed penetrating the plurality of spacing support beams in the left-right horizontal direction; and a panel support member supporting the outer surface of the outer panel so as not to tip over.

Description

Technology Field

[0001] The present invention relates to a PC prefabricated retaining wall structure with an integrated insulation layer, and more specifically, to a PC prefabricated retaining wall structure with an integrated insulation layer designed to secure excellent thermal insulation performance without the need for separate on-site insulation work during retaining wall construction, and to increase construction stability through precise spacing and connection between panels. Background Technology

[0003] Conventional concrete retaining wall structures are widely used at various construction sites to prevent the collapse of embankments and ensure ground stability. Recently, to shorten construction periods and standardize construction quality, a method involving assembling pre-fabricated precast concrete (PC) panels on-site and pouring concrete between them is being actively adopted. In particular, for retaining walls adjacent to underground parking lots or residential facilities, insulation must be installed to block outside air and prevent condensation.

[0004] In typical construction methods, insulation is attached on-site after the retaining wall structure is completed, or insulation is manually placed inside the formwork before concrete is poured. However, this method frequently results in problems where the insulation is pushed out or dislodged by the pressure of the concrete pouring, and the lack of integrity between the insulation and the concrete wall makes it prone to defects where the insulation detaches over time. Additionally, it is difficult to maintain a consistent spacing between prefabricated retaining wall panels, and construction difficulties exist, such as panels tipping over or cement paste leaking from connection points due to the strong lateral pressure generated during pouring. Conventional technology had limitations in simultaneously satisfying both structural stability and insulation performance.

[0005] Meanwhile, the aforementioned background technology is technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot necessarily be considered publicly known technology disclosed to the general public prior to the filing of the present invention. Prior art literature

[0007] Korean Registered Patent No. 10-1038657 (Published June 2, 2011) The problem to be solved

[0008] The present invention aims to provide a mechanical binding structure that maximizes construction efficiency by firmly integrating the insulation layer during the PC retaining wall panel manufacturing stage, maintains a precise spacing between the inner panel and the outer panel, and completely prevents the panel from tipping over or detaching even under concrete pouring pressure.

[0009] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0011] A PC prefabricated retaining wall structure with an integrated insulation layer according to one embodiment of the present invention comprises: an inner panel forming the inner wall of the retaining wall; an outer panel spaced apart from the inner panel to form the outer wall of the retaining wall and forming a pouring space for pouring concrete between the inner panel and the outer panel; an integrated insulation member installed integrally on the inner surface of the inner panel facing the outer panel; a plurality of spacing support beams spaced apart along the space between the inner panel and the outer panel to support the gap between the inner panel and the outer panel; reinforcing steel bars installed penetrating the plurality of spacing support beams in a left-right horizontal direction; and a panel support member supporting the outer surface of the outer panel so as not to tip over.

[0012] In one embodiment, the integrated insulation member may include: a first wire mesh placed on the inner surface of the inner panel; a first pouring layer in which concrete is poured on the inner surface of the inner panel to install the first wire mesh on the inner panel; styrofoam placed on the front surface of the first pouring layer; a second wire mesh placed on which the front surface of the styrofoam is covered; and a second pouring layer in which concrete is poured on the front surface of the first pouring layer to bury the styrofoam while simultaneously installing the second wire mesh on the first pouring layer.

[0013] In one embodiment, the styrofoam may form an opening in each space where the spacing support beam is installed.

[0014] A PC prefabricated retaining wall structure with an integrated insulation layer according to another embodiment of the present invention may further include a panel connection support member that brings two adjacent external panels into close contact with each other while preventing them from separating from each other.

[0015] In one embodiment, the panel connection support may include: mounting grooves formed on each edge of one side and the other side of the outer panel at the same height; a support frame that is simultaneously seated in the mounting grooves of two adjacent outer panels; a contact induction module installed on each side of the support frame and preventing the support frame from separating from the mounting grooves as it expands; and a module drive unit, the front end of which is exposed forward through the contact surface of two adjacent outer panels and the rear end of which is connected to the support frame, and which provides rotational driving force to the contact induction module as a user rotates it.

[0016] In one embodiment, the module drive unit may include: a drive unit body installed horizontally at the front end of the support frame; a drive shaft rotatably connected and installed inside the drive unit body; a shaft head installed by axial coupling at the front end of the drive shaft so as to be exposed to the front end of the drive unit body, which rotates the drive shaft as a user rotates it while using a tool; and two driven shafts rotatably connected and installed on one side and the other side inside the support frame, respectively, with the rear end of the drive shaft in between, and each connected and engaged by gear coupling at a right angle to the rear end of the drive shaft, so as to rotate together as the drive shaft rotates.

[0017] In one embodiment, the contact induction module comprises: a module head formed in a circular spherical shape with a diameter corresponding to the diameter of the mounting groove and installed at the end of the support frame; a first contact plate covering and seated on the front end of the module head; a plurality of second contact plates seated along the circumference of the module head that is not covered by the first contact plate; a first contact nut installed on the contact surface of the first contact plate seated on the module head; a first contact screw, one end of which is installed by axial coupling to the front end of the driven shaft and the other end of which is connected and engaged with the first contact nut by screw coupling, and which lifts the first contact nut from the module head as the driven shaft rotates; a first bevel gear installed by axial coupling to the end of the driven shaft inserted into the interior of the module head; and a plurality of second bevel gears connected and engaged with the first bevel gear by gear coupling while facing the plurality of second contact plates. It may include: a second contact nut installed on each contact surface of the second contact plate seated on the module head; and a second contact screw, one end of which is installed by axial coupling to the second bevel gear and the other end of which is connected by screw coupling to the second contact nut, and which lifts the second contact nut from the module head as the second bevel gear rotates.

[0018] In one embodiment, the module drive unit may further include a fixing pin that penetrates the shaft head and is inserted into the front end of the drive unit body to prevent the shaft head from rotating. Effects of the invention

[0020] Since the present invention supplies an internal panel manufactured in a factory with the insulation layer already attached, a separate on-site insulation attachment process is eliminated, which can drastically shorten the construction period.

[0021] The insulation, utilizing a double wire mesh structure and a multi-layer casting method, maximizes the bonding strength between the insulation material and the concrete wall, fundamentally preventing detachment or lifting of the insulation even during long-term use and ensuring excellent durability.

[0022] The spacing support beams and reinforcing bars are organically combined to precisely maintain the concrete pouring space and effectively disperse the lateral pressure generated during pouring, thereby preventing structural deformation.

[0023] The panel connection support, which includes panel supports and an expandable contact module, prevents leakage of cement paste and enables the perfect maintenance of flatness on the outer surface of the retaining wall by strongly compressing and fixing adjacent panels.

[0024] Users can adjust the bonding strength between panels simply by operating a tool from the outside and prevent loosening through a double locking mechanism, allowing for the safe construction of high-quality retaining wall structures regardless of the skill level of the construction site.

[0025] The effects of the present invention are not limited to those mentioned above, and various effects may be included within the scope obvious to a person skilled in the art from the contents described below. Brief explanation of the drawing

[0027] FIGS. 1 to 3 are drawings illustrating the schematic configuration of a PC prefabricated retaining wall structure with an integrated insulation layer according to one embodiment of the present invention. Figure 4 is a drawing showing the integrated insulation part of Figure 1. FIG. 5 is a diagram showing the schematic configuration of a PC prefabricated retaining wall structure with an integrated insulation layer according to another embodiment of the present invention. Figure 6 is a drawing showing the panel connection support of Figure 5. Specific details for implementing the invention

[0028] The following detailed description of the invention refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that various embodiments of the invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in relation to one embodiment. It should also be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the invention is limited only by the appended claims, including all equivalents to those claimed therein, provided appropriately described. Similar reference numerals in the drawings refer to the same or similar functions across various aspects.

[0029] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

[0030] FIGS. 1 to 3 are drawings illustrating the schematic configuration of a PC prefabricated retaining wall structure with an integrated insulation layer according to one embodiment of the present invention.

[0031] Referring to FIGS. 1 to 3, an insulating layer integrated PC prefabricated retaining wall structure (10), an inner panel (100), an outer panel (200), an integrated insulating part (300), a spacing support beam (400), reinforcing steel bars (500), and a panel support (600) according to one embodiment of the present invention.

[0032] The inner panel (100) forms the inner wall of the retaining wall and serves as a foundation wall that supports the load of the entire structure.

[0033] It is installed at a certain distance from the outer panel (200) and the inner panel (100) to form the outer wall of the retaining wall and simultaneously performs the role of a formwork that withstands the lateral pressure of concrete flowing into the pouring space formed between it and the inner panel (100).

[0034] Meanwhile, referring to FIG. 2, the insulation layer integrated PC prefabricated retaining wall structure (10) according to one embodiment of the present invention may further include an inner width adjustment panel (100a) and an outer width adjustment panel (200a) in the form of a jamb panel installed adjacent to a column (1) so as to precisely adjust the width of the retaining wall according to the length of the construction section at the site.

[0035] The column (1) is a structure that is erected vertically at the starting point, end point, or intermediate point of the construction of the retaining wall structure to support the retaining wall and serves as a reference point for construction.

[0036] The inner width adjustment panel (100a) and the outer width adjustment panel (200a) are so-called 'side panels' that have the same material and thickness as the aforementioned inner panel (100) and outer panel (200), but have a left-right width that is narrower than that of standard panels.

[0037] Generally, when precast concrete (PC) panels are manufactured in a standardized size in a factory and assembled continuously on-site, a narrow remaining space occurs between the last column (1) and the construction section, where a standard panel cannot fit, depending on the length of the entire construction section. At this time, the inner width adjustment panel (100a) and the outer width adjustment panel (200a) are installed by intervening between the outermost standard panels adjacent to the column (1), thereby allowing the width of the entire retaining wall structure to be precisely adjusted without error.

[0038] Furthermore, the inner width adjustment panel (100a) and the outer width adjustment panel (200a) are also connected to each other by a spacing support beam (400), just like the standard panel, and an integrated insulation section (300) is provided on the inner side. Through this, the same structural pressure resistance and thermal insulation performance as the standard section can be continuously guaranteed even in the parts finishing the leftover space of the retaining wall, and rapid and neat customized construction is possible without separate cutting processing on-site.

[0039] The integrated insulation section (300) is closely attached to the inner surface of the inner panel (100) facing the outer panel (200) and is integrally combined, thereby ensuring excellent thermal insulation performance along with structural stability of the prefabricated retaining wall.

[0040] Multiple spacing support beams (400) are arranged at regular intervals along the space between the inner panel (100) and the outer panel (200) to maintain a precise spacing distance between the two panels and prevent deformation during concrete pouring.

[0041] Reinforcing bars (500) and multiple spaced support beams (400) penetrate in the left and right horizontal directions, increasing resistance to horizontal loads and shear stresses, thereby dramatically improving structural rigidity.

[0042] A panel support (600) is positioned on the outer surface of the outer panel (200) to firmly support the outer panel (200) so that it does not tip over due to pressure or external impact during concrete pouring.

[0043] According to one embodiment of the present invention having the configuration as described above, a PC prefabricated retaining wall structure (10) with an integrated insulation layer can be rapidly constructed without a separate on-site insulation construction process, and structural stability against external forces is maximized through organic connection between panels.

[0045] Figure 4 is a drawing showing the integrated insulation part of Figure 1.

[0046] Referring to FIG. 4, it includes an integrated insulation part (300), a first wire mesh (310), a first pouring layer (320), styrofoam (330), a second wire mesh (340), and a second pouring layer (350).

[0047] The first wire mesh (310) is placed in close contact with the inner surface of the inner panel (100) and acts as an anchor to increase the bonding strength with the concrete.

[0048] A first pouring layer (320) is formed by pouring and curing liquid concrete on the inner surface of the inner panel (100), and a first wire mesh (310) is embedded inside to induce a strong physical bond between the inner panel (100) and the insulation components.

[0049] Styrofoam (330) is installed in close contact with the front surface of the first pouring layer (320) to block the inflow of external temperature and increase the energy efficiency of the retaining wall.

[0050] In one embodiment, an opening (331) of a shape corresponding to each placement position is provided so that a styrofoam (330) and a spacing support beam (400) can be installed through it.

[0051] According to one embodiment of the present invention having the configuration as described above, the styrofoam (330) eliminates interference with the support structure penetrating the insulation material, thereby enabling precise assembly and assisting the concrete flowing in through the opening to densely fill the area around the support structure.

[0052] The second wire mesh (340) is arranged to completely cover the front surface of the styrofoam (330) to increase adhesion with the outer pouring layer and prevent cracking.

[0053] The second pouring layer (350) is additionally poured on the front of the first pouring layer (320) to completely bury and protect the styrofoam (330) and to accommodate the second wire mesh (340) inside, thereby completing an integrated insulation layer of a multi-layer structure.

[0054] An integrated insulation member (300) according to one embodiment of the present invention having the configuration described above fundamentally prevents detachment or damage of the insulation material through a composite layer configuration and ensures long-term durability by securing integration with concrete.

[0056] FIG. 5 is a diagram showing the schematic configuration of a PC prefabricated retaining wall structure with an integrated insulation layer according to another embodiment of the present invention.

[0057] Referring to FIG. 5, according to another embodiment of the present invention, the PC prefabricated retaining wall structure (20) with an integrated insulation layer, an inner panel (100), an outer panel (200), an integrated insulation section (300), a spacing support beam (400), reinforcing steel (500), a panel support (600), and a panel connection support section (700) are included.

[0058] Here, the inner panel (100), outer panel (200), integrated insulation part (300), spacing support beam (400), reinforcing bar (500), and panel support (600) are identical to the components of FIG. 1, so their descriptions will be omitted to avoid duplication of descriptions.

[0059] A panel connection support (700) is installed across the boundary area between adjacent external panels (200) to prevent a step difference between the panels and to provide a close contact force.

[0060] According to another embodiment of the present invention having the configuration as described above, the insulation layer integrated PC prefabricated retaining wall structure (20) prevents separation between the outer panel (200), thereby blocking leakage of concrete paste and maintaining flatness of the entire outer surface of the retaining wall.

[0062] Figure 6 is a drawing showing the panel connection support of Figure 5.

[0063] Referring to FIG. 6, it includes a panel connection support (700), a mounting groove (710), a support frame (720), a close contact induction module (730), and a module driving unit (740).

[0064] A mounting groove (710) is formed by being recessed to a certain depth on the upper, lower, left, and right edges of adjacent external panels (200) in the vertical direction, providing a seating space for a connecting part.

[0065] A support frame (720) is installed to span across the mounting grooves (710) of two adjacent outer panels (200), distributing the load and serving as a mechanical base.

[0066] The close-inducing module (730) is provided at both ends of the support frame (720) and, according to external control, expands in volume or changes in position to press the inner wall of the mounting groove (710), thereby preventing the frame from detaching.

[0067] A module drive unit (740) receives rotational force through a shear exposed to the outside of the panel and forms a power transmission path to operate a contact induction module (730) located inside the support frame (720).

[0068] A panel connection support member (700) according to one embodiment of the present invention having the configuration described above generates a strong bonding force between panels simply by being easily operated from the outside by a worker, thereby simultaneously ensuring construction convenience and connection reliability.

[0070] Referring to FIG. 6, it includes a module drive unit (740), a drive unit body (741), a drive shaft (742), a shaft head (743), and a driven shaft (744).

[0071] The drive body (741) is firmly fixed to the center of the support frame (720) to protect internal rotating parts and support the rotation axis.

[0072] The drive shaft (742) is installed extending in the forward and backward directions through the drive body (741) and serves as the main shaft that transmits the user's rotational force internally.

[0073] The shaft head (743) has a shape that is exposed to the outside and can be engaged with a tool such as a wrench, thereby enabling direct torque to be applied to the drive shaft (742).

[0074] The driven shaft (744) is arranged by branching vertically from the end of the driving shaft (742) and finally distributes power to the close-induction modules on both sides in conjunction with the rotation of the driving shaft (742).

[0075] A module drive unit (740) according to one embodiment of the present invention having the configuration described above, and a right-angle power transmission structure utilizing bevel gears, etc., secure sufficient rotational moment for panel pressing even in a narrow space.

[0077] Figure 7 is a drawing showing the close-contact induction module of Figure 6.

[0078] Referring to FIG. 7, it includes a contact induction module (730), a module head (731), a first contact plate (732), a second contact plate (733), a first contact nut (734), a first contact screw (735), a first bevel gear (736), a second bevel gear (737), a second contact nut (738), and a second contact screw (739).

[0079] The module head (731) is located inside the mounting groove (710) and serves as a central body for emitting adhesion force in multiple directions.

[0080] The first contact plate (732) is positioned in the front direction of the module head (731) and transmits axial contact force to the bottom surface of the mounting groove (710).

[0081] Multiple second contact plates (733) are arranged along the side circumferential direction of the module head (731) and expanded radially to maximize friction with the side wall of the mounting groove (710).

[0082] The first contact nut (734) is combined with the first contact plate (732) and moves in a straight line according to the screw rotation, protruding the plate.

[0083] The first contact screw (735) rotates in conjunction with the driven shaft (744) and pushes the first contact nut (734) outward from the module head (731), generating a strong compressive force.

[0084] The first bevel gear (736) is installed on the driven shaft (744) and serves as a medium to convert the input rotational force in the radial direction.

[0085] A distributed driving force is provided to simultaneously rotate multiple second close screws (739) by engaging with the second bevel gear (737) and the first bevel gear (736).

[0086] The second contact nut (738) is fixed to the second contact plate (733) and induces radial expansion of the plate according to screw rotation.

[0087] By receiving the rotational force of the second close-fit screw (739) and the second bevel gear (737) and moving the second close-fit nut (738), a plurality of plates are uniformly pressed against the inner wall of the mounting groove (710).

[0089] A close-induction module (730) according to one embodiment of the present invention having the configuration described above realizes multi-axis expansion in the front and side with only simple mechanical operation, thereby ensuring that the panel connection state is firmly maintained even with vibration or load changes.

[0091] The module driving unit (740) having the configuration described above may further include a fixing pin (745).

[0092] The fixing pin (745) is inserted into the drive body (741) by passing through the shaft head (743) after reaching the set coupling pressure, thereby physically blocking unintended rotation or loosening.

[0093] A double locking device is provided through a module driving unit (740) and a fixing pin (745) according to one embodiment of the present invention having the configuration described above, thereby preventing weakening of the fastening force due to external impact or long-term creep and maintaining the safety of the structure for a long time.

[0095] The embodiments described above are for illustrative purposes only, and those skilled in the art will understand that the embodiments described above can be easily modified into other specific forms without altering the technical concept or essential features of the embodiments described above. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0097] The scope of protection sought through this specification is defined by the claims set forth below rather than by the detailed description above, and should be interpreted to include all modifications or variations derived from the meaning and scope of the claims and the concept of equivalents. Explanation of the symbols

[0099] 10, 20: Insulation layer integrated PC prefabricated retaining wall structure 100: Internal panel 200: External panel 300: Integrated insulation 400: Spacing support beam 500: Reinforcing steel 600: Panel support 700: Panel connection support

Claims

Claim 1 An inner panel forming the inner wall of a retaining wall; an outer panel spaced apart from the inner panel to form the outer wall of the retaining wall and forming a pouring space for pouring concrete between it and the inner panel; an integrated insulation member integrally installed on the inner surface of the inner panel facing the outer panel; a plurality of spacing support beams spaced apart along the space between the inner panel and the outer panel to support the gap between the inner panel and the outer panel; reinforcing steel bars installed penetrating the plurality of spacing support beams in the left-right horizontal direction; and a panel support member supporting the outer surface of the outer panel to prevent the outer panel from tipping over. A PC prefabricated retaining wall structure with an integrated insulation layer, comprising: a panel connection support member that brings two adjacent external panels into close contact with each other while preventing them from separating from each other; wherein the panel connection support member comprises: a mounting groove formed on each edge of one side and the other side of the external panels of the same height; a support frame that is simultaneously seated in the mounting grooves of two adjacent external panels; a close contact induction module installed on each side of the support frame and, as it expands, prevents the support frame from separating from the mounting grooves; and a module drive member, the front end of which is exposed forward through the contact surface of two adjacent external panels and the rear end of which is connected to the support frame, and which provides rotational driving force to the close contact induction module as a user rotates it. Claim 2 In claim 1, the integrated insulation member comprises: a first wire mesh seated on the inner circumference of the inner panel; a first pouring layer in which concrete is poured on the inner circumference of the inner panel to install the first wire mesh on the inner panel; styrofoam seated on the front surface of the first pouring layer; a second wire mesh seated covering the front surface of the styrofoam; and a second pouring layer in which concrete is poured on the front surface of the first pouring layer to bury the styrofoam and simultaneously install the second wire mesh on the first pouring layer; wherein the styrofoam is characterized by forming an opening in each space where the spacing support beam is installed. Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete

Images