Reinforcement method of roof panel for disposal facility, which is a surface disposal facility, and its reinforcement device

Abstract

The present invention comprises the step of forming a plurality of metal strips by cutting and processing a Sus plate so that the roof panel, which is covered and fixed to treat radioactive waste in a disposal vault, a surface disposal facility, has a length extending from less than 1 / 2 of the height of one side wall panel of the disposal vault to less than 1 / 2 of the height of the other side wall panel while wrapping around the roof panel, so that the span of the roof panel can be 1 / 180 or less even at a wind speed of at least 45 m / s caused by a typhoon or continuous strong winds; The present invention provides a method for reinforcing a roof panel for disposal, which is a surface disposal facility, and a reinforcing device thereof, comprising the step of attaching the plurality of metal strips to one side wall panel, a roof panel, and another side wall panel, and interposing a support washer on the underside of the head of each of the plurality of GS bolts on each ridge of each side wall panel and roof panel, and then passing the end of the GS bolt through the side wall panel and roof panel, and then fastening and fixing the end of the GS bolt that has passed through the C-shaped steel with a support washer and a nut; wherein the GS bolts are fastened and fixed at intervals of 25 to 50 cm. Accordingly, by preventing damage or breakage to the roof panels of the disposal shed due to tearing, etc., it is possible to secure a long service life and ensure high reliability in the use of the disposal shed.

Description

Technology Field

[0001] The present invention relates to the reinforcement of roof panels for a disposal vault, which is a surface disposal facility, and more specifically, to a method for reinforcing roof panels for a disposal vault, which is a surface disposal facility, and a reinforcing device thereof, such that roof panels covered and fixed to process radioactive waste in a disposal vault, which is a surface disposal facility, can satisfy a bending displacement range (span) of 1 / 180 or less even at a wind speed of at least 45 m / s caused by a typhoon or continuous strong wind. Background Technology

[0003] Disposal systems for radioactive waste consist of various types of barriers. Barriers are broadly classified into natural barriers and engineered barriers; as the name suggests, natural barriers utilize natural structures such as bedrock and clay layers, as well as soil, for the containment of disposal containers.

[0004] Natural barriers must be able to defend against groundwater infiltration or intrusion by outsiders.

[0005] Engineered barriers also refer to artifacts performing the same function, such as disposal vaults, disposal containers, buffer materials, and backfill materials.

[0006] Current disposal methods in Korea vary depending on the radioactivity level of the radioactive waste.

[0007] Landfill disposal is a method of burying radioactive waste in a natural barrier created by tasks such as digging trenches near the surface.

[0008] Surface disposal is a disposal method in which natural and engineered barriers are installed near the surface, while cave disposal is a disposal method in which natural and engineered barriers are installed in underground bedrock or caves. The three methods of landfill disposal, surface disposal, and cave disposal are classified as shallow disposal.

[0009] In contrast to shallow disposal, deep disposal is a method of disposal that involves installing natural and engineered barriers in very stable geological structures deep underground; currently, there are no deep disposal facilities in Korea.

[0010] Thus, among the various disposal methods, surface disposal facilities are explained.

[0011] Movable Crane Shelters (MCS) are installed between the disposal vaults, which are surface disposal facilities, for purposes such as transporting radioactive waste and covering the roofs of the disposal vaults, and rails are installed between the disposal vaults for the movement of the Movable Cranes.

[0012] Before the radioactive waste is introduced into the aforementioned disposal facility, the upper roof is left open, and the radioactive waste is loaded using a mobile crane. Then, to process the radioactive waste, the roof is covered and secured using the mobile crane, and the radioactive waste is processed.

[0013] Here, the roof panel placed on top of the disposal vault is secured by directly connecting fixing pieces to the ridges of the roof panel using C-shaped steel, which is typically installed inside the disposal vault. The roof panel is a glass wool panel featuring a continuous repetition of ridges and valleys.

[0014] Accordingly, when vibration or bending occurs due to continuous strong winds or typhoons, the area holding the roof panel is small, so the roof panel is torn from the fixing piece, causing the roof panel to detach and fall off.

[0015] In particular, radioactive waste is disposed of in the disposal vault of the surface disposal facility, and the roof panels serve to block rainwater during the disposal process.

[0016] As described above, the patent documents related to the disposal vault of a surface disposal facility for treating radioactive waste are as follows.

[0017] First, as disclosed in Korean Registered Patent Publication No. 10-2510544 (hereinafter referred to as 'Patent Document 1'), a technology has been proposed that includes a disposal vault closing process in which a large container is loaded into a radioactive waste surface disposal facility using a construction lift and the opening is closed upon entry, and a cover is installed on the upper surface of the disposal vault to close it.

[0018] In addition, as disclosed in Korean Registered Patent Publication No. 10-2706456 (hereinafter referred to as 'Patent Document 2'), a technology for preventing floating and fixing the position of disposal drums in a radioactive waste surface disposal facility has also been proposed.

[0019] In addition, as disclosed in Korean Patent Publication No. 10-2024-00024546 (hereinafter referred to as 'Patent Document 3'), a technology has been proposed to identify the behavior of the surface disposal facility structure by processing image information captured of the outer wall of a surface disposal facility, binarizing the image information by utilizing contrast between a number of fastening brackets on the outer wall and the concrete surface, and then comparing the results over time.

[0020] However, the roof panel of the disposal vault of the surface disposal facility applied in Patent Documents 1 to 3 has the same problem as described above, in that the roof panel is fixed by directly connecting a fixing piece to the top of the roof panel with a C-shaped steel installed inside the disposal vault, and when vibration or bending occurs due to continuous strong winds or typhoons, the area holding the roof panel is small, causing the roof panel to detach from the fixing piece and fall off due to tearing of the roof panel. Prior art literature

[0022] Korean Registered Patent Publication No. 10-2510544 Korean Registered Patent Publication No. 10-2706456 Korean Published Patent Publication No. 10-2024-00024546 The problem to be solved

[0023] The specific technical problem of the present invention, which is to solve the aforementioned conventional problems, is to provide a method for reinforcing a roof panel for a disposal vault, which is a surface disposal facility, and a reinforcing device thereof, so that the roof panel, which is covered and fixed to process radioactive waste in a disposal vault, which is a surface disposal facility, can satisfy a bending displacement range (span) of 1 / 180 or less even at a wind speed of at least 45 m / s caused by a typhoon or continuous strong wind.

[0024] Another specific technical problem of the present invention is to ensure a wider contact area between each side wall panel and the roof panel.

[0025] Another specific technical problem of the present invention is to enable high responsiveness to vibrations caused by typhoons or strong winds. means of solving the problem

[0027] A specific technical solution of the present invention for solving the specific technical problem described above is a reinforcement method for reinforcing the fixation of a roof panel fixed to a C-shaped steel section provided internally and covered over the upper part of each side wall panel of a disposal vault, which is a surface disposal facility for treating radioactive waste, comprising the step of forming a plurality of metal strips by cutting and processing a Sus plate to have a length extending from less than 1 / 2 of the height of one side wall panel of the disposal vault to less than 1 / 2 of the height of the other side wall panel while wrapping around the roof panel; and a step of attaching the plurality of metal strips at regular intervals to one side wall panel, a roof panel, and another side wall panel, and interposing a support washer on the underside of the head of each of the plurality of GS bolts on each of the ridges of each side wall panel and roof panel, and then passing the end of the GS bolt through the side wall panel and roof panel, and then fastening and fixing the end of the GS bolt that has passed through the C-shaped steel with a support washer and a nut; wherein the GS bolt is fastened and fixed at intervals of 25 to 50 cm.

[0028] It includes additionally interposing a waterproof washer between the washer of the plurality of GS bolts and each metal band.

[0029] The plurality of metal strips are bent into a shape corresponding to the peaks and valleys of each side wall panel and roof panel so as to be in close contact with the surface of each side wall panel and roof panel.

[0030] It includes a cushioning member interposed between each of the above support washers, each GS bolt head, and each nut for cushioning.

[0031] A reinforcing device for reinforcing the fixation of a roof panel that is fixed to a C-shaped steel member provided inside and covered over the upper part of each side wall panel of a disposal vault, which is a surface disposal facility for processing radioactive waste, wherein the reinforcing device comprises: a plurality of metal strips formed by cutting and processing a Sus plate to have a length extending from less than 1 / 2 the height of one side wall panel of the disposal vault to less than 1 / 2 the height of the other side wall panel while wrapping around the roof panel; and a plurality of GS bolts that penetrate the side wall panel, the roof panel, and the C-shaped steel member by attaching the plurality of metal strips at regular intervals to the one side wall panel, the roof panel, and the other side wall panel, with a support washer interposed on the underside of the head on each ridge of each side wall panel and the roof panel. A reinforcing device for a roof panel for a disposal facility, which is a surface disposal facility, comprising: a support washer and a nut fastened and fixed to the end of the GS bolt penetrating the C-shaped steel; wherein the GS bolt is fastened and fixed at intervals of 25 to 50 cm. Effects of the invention

[0033] The present invention has the effect of ensuring a long service life and high reliability for the use of the disposal vault by preventing damage or breakage caused by tearing of the roof panels of the disposal vault, which are covered and fixed to process radioactive waste in a surface disposal facility, by ensuring that the span of the roof panels is 1 / 180 or less even at a wind speed of at least 45 m / s caused by typhoons or continuous strong winds.

[0034] In addition, by ensuring a wider contact area between each side wall panel and the roof panel, it also has the effect of preventing deformation and providing higher fastening strength when the roof panel is fastened.

[0035] In addition, by enabling high responsiveness to vibrations caused by typhoons or strong winds, it also has the effect of ensuring even higher reliability against vibrations and fundamentally preventing damage or deformation of the disposal facility. Brief explanation of the drawing

[0037] FIG. 1 is a block diagram for explaining a reinforcement method of a first embodiment of the present invention, FIGS. 2 and 3 are flowcharts for explaining reinforcement steps for explaining a first embodiment of the present invention, FIG. 4 is a partial cross-sectional view illustrating the fastening and fixing of a metal strip for reinforcement according to the present invention. FIG. 5 is a partial excerpt illustrating a second embodiment of the present invention, FIG. 6 is a partial excerpt illustrating a third embodiment of the present invention. Specific details for implementing the invention

[0038] The terms or words used in the present invention described below should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0039] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the present invention and do not represent all technical concepts of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0040] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings, and the present invention is not limited or restricted by the embodiments.

[0041] FIG. 1 is a block diagram for explaining a reinforcement method of the first embodiment of the present invention, FIG. 2 to 3 are flowcharts for explaining reinforcement steps for explaining the first embodiment of the present invention, and FIG. 4 is a partial cross-sectional view for explaining that a metal strip for reinforcement of the present invention is fastened and fixed.

[0042] As described above, regarding the disposal vault, which is a surface disposal facility, as described in the background technology of the invention, the roof panel placed on top of the disposal vault is fixed by directly connecting a fixing piece to the top of the roof panel using a C-shaped steel installed inside the disposal vault. However, when vibration or bending occurs due to continuous strong winds or typhoons, the area holding the roof panel is small, so the roof panel detaches from the fixing piece and falls off due to tearing or other issues.

[0043] For reference, [Table 1] below shows the wind load distribution affecting disposal heights due to strong winds.

[0044]

[0045] The present invention provides a method for reinforcing a roof panel for a disposal vault, which is a surface disposal facility, and a reinforcing device thereof, so that the roof panel, which is covered and fixed to process radioactive waste in a disposal vault, which is a surface disposal facility, can satisfy a bending displacement range (span) of 1 / 180 or less even at a wind speed of at least 45 m / s caused by a typhoon or continuous strong wind.

[0046] A reinforcement method for reinforcing the fixation of a roof panel (110) that is fixed to a C-shaped steel member (C) provided inside and covered over the upper part of each side wall panel (120) of a disposal facility (100) for treating radioactive waste according to the present invention is as follows.

[0047] Step (S1) is performed to form a plurality of metal strips (10) by cutting and processing a Sus plate (S / P) so that it has a length from less than 1 / 2 of the height of one side wall panel (120) of the disposal tank (100) to less than 1 / 2 of the height of the other side wall panel (120) while wrapping around the roof panel (110).

[0048] In the above, the plurality of metal strips (10) have a thickness of approximately 3t, a width of approximately 10cm, and a length selected as an appropriate length according to the overall size of the disposal tank. It is preferable that the spacing between the plurality of metal strips be approximately 2m, and can be selected and used as an appropriate length as needed.

[0049] Then, the plurality of metal strips (10) are attached to one side wall panel (120), a roof panel (110), and another side wall panel (120) at regular intervals, and a support washer (22) is placed on the underside of the head of each of the plurality of GS bolts (20) on each of the ridges of each side wall panel (120) and roof panel (110), and after the GS bolts (20) penetrate the side wall panel (120) and roof panel (110), the end of the GS bolt (20) penetrates the C-shaped steel (C), and then the end of the GS bolt (20) that has penetrated the C-shaped steel (C) is fastened and fixed with the support washer (22) and nut (24); wherein it is preferable that the GS bolts (20) be fastened and fixed at intervals of 25 to 50 cm so that they have close spacing.

[0050] In addition, a waterproof washer (26) to prevent leakage is further interposed between the support washer (22) of the plurality of GS bolts (20) and each metal strip (10).

[0051] In addition, the above side wall panels and roof panels are typically assembled using glass wool panels.

[0052] The above-mentioned GS bolt has a known technical configuration as posted on the site below, so a detailed description is omitted.

[0053] https: / / www.e-bada.co.kr / shop / item.php?it_id=1614141167

[0054] In other words, the present invention has a technical configuration in which a roof panel, which is placed on and fixed to the upper part of each side wall panel constituting the disposal unit, can satisfy a bending displacement range (span) of 1 / 180 or less even at a wind speed of at least 45 m / s caused by a typhoon or continuous strong wind.

[0055] That is, multiple metal strips are wrapped around each side wall panel on one side at predetermined intervals, passing through the roof panel to each side wall panel on the other side, and GS bolts are used at close intervals of 25 to 50 cm to secure a wide contact area with the ridges of each panel. By securing not only the support washers but also the C-shaped steel provided for internal fastening and fixing using support washers and nuts, high fastening and fixing strength can be achieved even against vibrations caused by typhoons or continuous strong winds.

[0056] In particular, at the part that contacts the ridges of each panel, each support washer secures a wider contact area compared to when only the head of the conventional fixing piece contacts, and also secures the widest possible contact area with the ridges of each panel due to the close spacing, thereby securing high support fixing force.

[0057] In addition, the end of the GS bolt penetrating the C-shaped steel also has high fastening strength due to the support washer and the bolt, thereby establishing conditions to secure even higher fastening strength.

[0058] The following illustrates an example of testing the axial force in the center and side portions of a roof panel with and without the metal strip of the present invention described above.

[0059] [Example 1]

[0060] 27 M6 bolts fastened CASE II-2 Model In the middle part, without metal strips attached to the roof panels The axial force is approximately 1320 N This was obtained, and it was confirmed that the axial force on the side was approximately 680 N.

[0061]

[0062] [Table 2] summarizes the axial force of the above M6 bolt fastening CASE II-2 model.

[0063] BC Axial Force [N] BC Axial Force [N] (0, 0) -508 (0, 0.5) -957 (1, 0) -699 (1, 0.5) -1362 (2, 0) -655 (2, 0.5) -1275 (3, 0) -705 (3, 0.5) -1345 (4, 0) -654 (4, 0.5) -1276 (5, 0) -698 (5, 0.5) -1359 (6, 0) -509 (6, 0.5) -961 (0, 0.25) -988 (0, 0.75) -989 (3, 0.25) -1362 (3, 0.75) -1364 (6, 0.25) -988 (6, 0.75) -984 (0, 1) -508 (1, 1) -699 (2, 1) -655 (3, 1) -704 (4, 1) -654 (5, 1) -699 (6, 1) -509

[0064] [Example 2]

[0065] 15 M6 bolts fastened CASE II-3 Model At the center of the central reinforcing plate where a metal strip is added to the roof panel The axial force is approximately 3650 N This was found, and it was confirmed that the axial force in the side section was less than 1 / 2 compared to the center of the reinforcing plate.

[0066]

[0067] [Table 3] summarizes the axial force of the above M6 bolt fastening CASE II-3 model.

[0068] BC Axial Force [N] (0, 0) -1275 (3, 0) -2347 (6, 0) -1273 (0, 0.25) -2023 (3, 0.25) -3593 (6, 0.25) -2027 (0, 0.5) -2071 (3, 0.5) -3698 (6, 0.5) -2080 (0, 0.75) -2031 (3, 0.75) -3594 (6, 0.75) -2018 (0, 1) -1272 (3, 1) -2345 (6, 1) -1275

[0069] It can be confirmed that compared to the roof panel fastened with a large number of bolts without a metal strip attached as in the above-described Example 1, the axial force in the roof panel fastened with fewer bolts after a metal strip attached as in Example 2 is higher than in Example 1.

[0070] In particular, the surface disposal facility located in Gyeongju is adjacent to the sea, and by applying the technology of the present invention to prevent panel damage from summer typhoons or strong winds, it is possible to prevent damage to roof panels under harsh weather conditions and ultimately minimize rainwater inflow into the disposal vault during disposal.

[0071] Accordingly, the present invention has conditions that prevent the phenomenon of the roof panel falling off and detaching due to tearing caused by a typhoon or continuous strong winds by ensuring that the roof panel, which is covered and fixed to treat radioactive waste in a disposal vault, a surface disposal facility, has a span of 1 / 180 or less even at a wind speed of at least 45 m / s caused by a typhoon or continuous strong winds.

[0072] FIG. 5 is a partial excerpt illustrating a second embodiment of the present invention.

[0073] As described above, in the configuration described above, a technical configuration is also provided in which a plurality of metal strips can maximize the contact area between each side wall panel and the roof panel.

[0074] A plurality of metal strips (10) are formed by bending them into a shape corresponding to the peaks and valleys of each side wall panel (120) and roof panel (110) so as to be in close contact with the surface of each side wall panel (120) and roof panel (110).

[0075] In other words, the above-mentioned multiple metal strips are fastened and secured onto the C-shaped steel by multiple GS bolts, each support washer, and nuts, thereby ensuring that the contact area with each panel is maximized by ensuring that the ridge portions of each side wall panel and roof panel are in close contact not only with each ridge portion but also with the groin portions.

[0076] As a result, when fastened and secured by GS bolts, it can have a higher fastening strength, which can fundamentally prevent the roof panels from falling off or detaching.

[0077] FIG. 6 is a partial excerpt illustrating a third embodiment of the present invention.

[0078] As described above, in the configuration, a technical configuration is also provided that can maintain even more stable fastening force even against vibrations caused by typhoons or continuous strong winds.

[0079] A cushioning member (30), such as a spring, for cushioning is interposed between each support washer (22), each GS bolt (20) head, and each nut (24).

[0080] In other words, when vibrations occur due to typhoons or strong winds, the roof panel can be prevented from falling off and separating due to the high fastening force of the GS bolt, but by absorbing and canceling out the vibrations in the interposed cushioning member, even greater stability can be secured while maintaining the high fastening force.

[0081] As a result, the roof panels of the disposal facility are prevented from being damaged or broken, thereby ensuring even higher reliability. Explanation of the symbols

[0083] 10 : Metal strip 20 : GS bolt 22: Support washer 24: Nut 26 : Waterproof washer 30 : Cushioning member

Claims

Claim 1 A reinforcement method for reinforcing the fixation of a roof panel fixed to an internal C-shaped steel member that covers the upper part of each side wall panel of a disposal vault, which is a surface disposal facility for treating radioactive waste, comprising the step of forming a plurality of metal strips by cutting and processing a Sus plate to have a length extending from 1 / 2 or less of the height of one side wall panel of the disposal vault to 1 / 2 or less of the height of the other side wall panel while wrapping around the roof panel; A method for reinforcing a roof panel for a disposal facility, which is a surface disposal facility, comprising the step of: attaching the plurality of metal strips at regular intervals to one side wall panel, a roof panel, and another side wall panel, and interposing a support washer on the underside of the head of each of the plurality of GS bolts on each ridge of each side wall panel and roof panel, and then passing the end of the GS bolt through the side wall panel and roof panel, and then fastening and fixing the end of the GS bolt that has passed through the C-shaped steel with a support washer and a nut; wherein the GS bolts are fastened and fixed at intervals of 25 to 50 cm, and a cushioning member for cushioning is interposed between each support washer, each GS bolt head, and each nut to absorb and offset vibrations. Claim 2 A method for reinforcing a roof panel for a disposal facility, which is a surface disposal facility, according to claim 1, wherein a waterproof washer is further interposed between the washer of the plurality of GS bolts and each metal band. Claim 3 A method for reinforcing a roof panel for a disposal facility, which is a surface disposal facility, wherein, in claim 1, the plurality of metal strips are bent into a shape corresponding to the peaks and valleys of each side wall panel and roof panel so as to be in close contact with the surface of each side wall panel and roof panel. Claim 4 delete Claim 5 A reinforcing device for reinforcing the fixation of a roof panel fixed to an internal C-shaped steel member that covers the upper part of each side wall panel of a disposal vault, which is a surface disposal facility for processing radioactive waste, wherein the reinforcing device comprises: a plurality of metal strips formed by cutting and processing a Sus plate to have a length extending from less than 1 / 2 the height of one side wall panel of the disposal vault to less than 1 / 2 the height of the other side wall panel while wrapping around the roof panel; and a plurality of GS bolts that penetrate the side wall panel, the roof panel, and the C-shaped steel member by attaching the plurality of metal strips at regular intervals to the one side wall panel, the roof panel, and the other side wall panel, with a support washer interposed on the underside of the head on each ridge of each side wall panel and the roof panel. A reinforcing device for a roof panel for a disposal facility, which is a surface disposal facility, comprising: a support washer and a nut fastened and fixed to the end of the GS bolt penetrating the C-shaped steel; wherein the GS bolts are fastened and fixed at intervals of 25 to 50 cm, and a cushioning member for cushioning is interposed between each support washer, each GS bolt head, and each nut to absorb and offset vibrations.

Images