Radiation-proof building structure with sedimentation joint and construction method thereof

Abstract

The application relates to a radiation-proof building structure containing settlement joints and a construction method thereof, and relates to the technical field of radiation-proof building construction. The radiation-proof building structure containing settlement joints comprises two support plates, a plurality of outer wall bodies located between the two support plates, and all the outer wall bodies are sequentially arranged in a head-tail connection mode along the circumferential direction of the support plates. The outer wall bodies are connected with each support plate. The outer wall bodies are provided with wall surface settlement joints, the support plates are provided with ground surface settlement joints, the ground surface settlement joints and the wall surface settlement joints are connected with each other, the upper surfaces of the support plates are provided with ground surface radiation-proof layers and ground surface radiation-proof expansion devices covering the ground surface settlement joints, and the surfaces of the outer wall bodies are provided with wall surface radiation-proof layers and wall surface radiation-proof expansion devices covering the wall surface settlement joints. The wall surface radiation-proof expansion devices can automatically expand and contract to cover the wall surface settlement joints at all times, the ground surface radiation-proof expansion devices can automatically expand and contract to cover the ground surface settlement joints at all times, and therefore the possibility of radiation leakage to the outside is reduced.

Description

Technical Field

[0001] This application relates to the field of radiation protection building construction technology, and in particular to a radiation protection building structure with settlement joints and its construction method. Background Technology

[0002] Radiation, often referring to nuclear radiation, is widely used in medical testing and treatment. In practice, dedicated radiation-proof areas need to be designated within buildings for the installation of diagnostic or therapeutic equipment that generates radiation.

[0003] Radiation shielding panels need to be fixedly installed on the inner walls of buildings located in radiation protection zones to reduce the possibility of radiation from within the radiation protection zone spreading outside the zone, thereby reducing the risk of radiation hazards to people located outside the radiation protection zone.

[0004] Regarding the aforementioned technologies, when the radiation protection area of ​​a building crosses a settlement joint, i.e. when the radiation protection area contains a settlement joint, the relative movement of the building's position on both sides of the settlement joint will cause the radiation protection panel to crack and be damaged, resulting in radiation within the radiation protection area leaking outward from the crack in the radiation protection panel. Summary of the Invention

[0005] The purpose of this application is to provide a radiation-proof building structure with settlement joints and its construction method, so as to improve the problem of radiation leakage due to building settlement.

[0006] Firstly, the radiation-proof building structure with settlement joints provided in this application adopts the following technical solution:

[0007] The system includes two support plates and multiple exterior wall sections located between the two support plates. All the exterior wall sections are sequentially connected end-to-end along the circumference of the support plates. Each exterior wall section is connected to each support plate. A wall settlement joint is provided through each exterior wall section, and a ground settlement joint is provided through each support plate. The ground settlement joint and the wall settlement joint are interconnected. A ground radiation shielding layer and a ground radiation shielding expansion joint covering the ground settlement joint are provided on the upper surface of the support plate. A wall radiation shielding layer and a wall radiation shielding expansion joint covering the wall settlement joint are provided on the surface of the exterior wall sections.

[0008] The wall-mounted radiation shielding expansion device includes a first radiation shielding component and a second radiation shielding component covering the first radiation shielding component; the first radiation shielding component is connected to one side of the outer wall at the wall settlement joint, and the second radiation shielding component is connected to the other side of the outer wall at the wall settlement joint.

[0009] By adopting the above technical solution, the wall radiation shielding layer, the ground radiation shielding layer, the ground radiation shielding expansion device, the first radiation shielding component, and the second radiation shielding component work together to reduce the possibility of radiation propagating outward. When the exterior wall is located on one side of the wall settlement joint and the support plate is located on one side of the ground settlement joint, and the wall settlement joint settles downward, the first radiation shielding component moves relative to the second radiation shielding component, and the ground radiation shielding expansion device automatically extends and retracts, so that the first and second radiation shielding components always cover the wall settlement joint and the ground radiation shielding expansion device always covers the ground settlement joint, thereby helping to reduce the possibility of radiation leakage and propagation outward.

[0010] Optionally, the ground radiation shielding layer includes a barite concrete layer and a ground reinforcement mesh laid on the surface of the barite concrete layer.

[0011] By adopting the above technical solution, the barite within the barite concrete layer acts as a barrier, thereby reducing the possibility of radiation penetrating the support plate and propagating outwards. During construction, the barite concrete can be directly laid on the surface of the support plate, making the operation simple and convenient. The ground reinforcement mesh helps to improve the surface structural strength of the barite concrete layer, thus reducing the possibility of surface cracking.

[0012] Optionally, the ground radiation shielding layer may also include several overlapping radiation shielding lead plates, which are located between the barite concrete layer and the support plate.

[0013] By adopting the above technical solution, radiation-shielding lead plates can absorb radiation or cause radiation to scatter or attenuate within the lead plate, thereby reducing the possibility of radiation propagating outward. Compared with barite concrete layers, radiation-shielding lead plates of the same weight are thinner, lighter, and have better radiation protection. Therefore, it is beneficial to reduce the thickness and weight of barite concrete layers, which in turn reduces the stress on the supporting plates and the external walls, thus improving the stability of the building structure.

[0014] Optionally, the wall radiation shielding layer includes a barite mortar layer on the surface of the outer wall, a wall reinforcement mesh laid on the surface of the barite mortar layer, and multiple reinforcing meshes set inside the barite mortar layer, with all the reinforcing meshes arranged at intervals along the thickness direction of the outer wall.

[0015] By adopting the above technical solution, the wall reinforcement mesh and the entire reinforcing mesh work together to improve the internal structural strength of the corresponding barite mortar layer, thereby reducing the risk of cracking of the corresponding barite mortar layer.

[0016] Optionally, the ground radiation-resistant expansion joint includes a base plate, a lead cover plate covering the base plate, and a connector for connecting the base plate to the support plate; both the base plate and the lead cover plate are recessed downwards and have a bending portion, the length direction of which is along the length direction of the ground settlement joint; the base plate is connected to the corresponding position of the support plate via the connector on at least one side along the width direction of the ground settlement joint.

[0017] By adopting the above technical solution, the lead cover plate serves to block radiation, while the base plate supports the lead cover plate. When the support plate moves downwards on one side of the ground settlement joint, the bending part can automatically deform to adapt to the height difference between the two sides of the ground settlement joint, thereby helping to reduce the possibility of cracking of the lead cover plate.

[0018] Optionally, the connector includes a connecting rod and a limiting ring plate connected to the peripheral wall of one end of the connecting rod; the end of the connecting rod away from the limiting ring plate is used to pass through the bottom plate and be inserted into the support plate.

[0019] The connecting rod body has a driving hole on one end wall of the limiting ring plate. The inner diameter of the driving hole gradually decreases along the length of the connecting rod body away from the limiting ring plate. The peripheral wall of the connecting rod body has a receiving hole that communicates with the interior of the driving hole. The connecting rod body has a limiting piece that extends into the driving hole. A driving rod is inserted into the driving hole. The driving rod is used to abut against the limiting piece to push the limiting piece outward from the receiving hole.

[0020] By adopting the above technical solution, when fixing the base plate, the connecting rod is struck so that it penetrates the base plate and is inserted into the support plate, thereby causing the limiting ring plate to abut against the base plate, thus achieving the effect of fixing the base plate; then, the drive rod is inserted into the drive hole and struck so that the drive rod abuts against the limiting piece and pushes the limiting piece outward from the receiving hole, thereby allowing the limiting piece to abut against the support plate, thus restricting the movement of the connecting rod relative to the support plate, thereby improving the stability of the base plate fixing.

[0021] Optionally, the drive rod is provided with an abutment protrusion for insertion into the receiving hole; the end wall of the drive rod near the abutment protrusion is provided with a relief groove for elastic deformation of the drive rod, and the bottom wall of the relief groove is located on the side of the abutment protrusion near the limiting ring plate.

[0022] By adopting the above technical solution, when the limiting piece and the support plate are pressed together and the abutting protrusion is aligned with the receiving hole, the deformation of the drive rod is restored, which allows the abutting protrusion to automatically insert into the receiving hole so that the abutting protrusion can abut against the limiting piece, thereby reducing the possibility that the connecting rod body and the support plate may separate due to the deformation of the limiting piece into the receiving hole.

[0023] Optionally, the base plate includes a metal plate; the ground radiation protection telescopic device also includes an insulating pad disposed between the base plate and the lead cover plate.

[0024] By adopting the above technical solution, the insulating pad separates the metal base plate from the lead cover plate, which helps to reduce the possibility of electrochemical corrosion between the base plate and the lead cover plate, thereby reducing the risk of corrosion of the base plate and the lead cover plate and improving the service life of the base plate and the lead cover plate.

[0025] Optionally, the ground radiation shielding expansion joint is located inside the ground radiation shielding layer; the upper surface of the ground radiation shielding layer at both sides of the expansion joint along the width direction of the ground settlement joint is provided with expansion joints extending downwards.

[0026] By adopting the above technical solution, when the support plate moves downwards on one side of the ground settlement joint, the expansion joint allows the ground radiation protection expansion device to tilt the portion of the ground radiation protection layer covering it, thus reducing the likelihood of cracking at the location of the expansion device. Simultaneously, the ground radiation protection expansion device is encased in barite concrete, which provides protection and improves the flatness of the ground.

[0027] Secondly, the construction method for a radiation-proof building structure with settlement joints provided in this application adopts the following technical solution:

[0028] A construction method for a radiation-shielding building structure with settlement joints includes the following steps:

[0029] Wall radiation shielding construction:

[0030] Construction of radiation shielding layer on wall surface;

[0031] Install the first and second radiation protection components in sequence;

[0032] Ground-based radiation shielding construction:

[0033] Install the base plate; then place the insulating pad and lead cover plate on the base plate in sequence;

[0034] Lay radiation shielding lead plates; the radiation shielding lead plates are laid out with T-shaped overlaps; the radiation shielding lead plates and lead cover plates overlap each other.

[0035] The ground radiation shielding layer is constructed by covering both the radiation shielding lead plate and the lead cover plate inside;

[0036] Expansion joints are installed at the junction of the radiation shielding lead plate and the lead cover plate in the ground radiation shielding layer.

[0037] By adopting the above technical solution, the T-shaped overlap between the radiation shielding lead plates is beneficial to improving the tightness and flatness of the overlap between the radiation shielding lead plates.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. The wall-mounted radiation shielding expansion joint can automatically extend and retract to always cover the wall settlement joint, and the ground-mounted radiation shielding expansion joint can automatically extend and retract to always cover the ground settlement joint, thereby helping to reduce the possibility of radiation leakage to the outside.

[0040] 2. Ground reinforcement mesh helps improve the structural strength of the barite concrete layer surface, thereby reducing the possibility of surface cracking in the barite concrete layer;

[0041] 3. Expansion joints help reduce the likelihood of cracking in the ground radiation shielding layer at the location of the ground radiation shielding expansion joint.

[0042] 4. The drive rod and the limiting plate work together to improve the stability of the connection between the connecting rod and the support plate, thereby improving the stability of the base plate. Attached Figure Description

[0043] Figure 1 This is a cross-sectional schematic diagram of a neat structure used to illustrate Embodiment 1 of a radiation-proof building structure with settlement joints according to this application.

[0044] Figure 2 This is a cross-sectional schematic diagram used to illustrate the structure of the ground radiation shielding telescopic device in Embodiment 1.

[0045] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0046] Figure 4 This is a schematic diagram illustrating the layout of the radiation-shielding lead plate in Example 1.

[0047] Figure 5 yes Figure 2 Enlarged view of part B in the image.

[0048] Figure 6 This is a cross-sectional schematic diagram used to illustrate the structure of the wall-mounted radiation shielding telescopic device in Embodiment 1.

[0049] Figure 7 yes Figure 6 Enlarged view of section C in the image.

[0050] Figure 8 This is a cross-sectional schematic diagram used to illustrate the connector structure in Embodiment 2.

[0051] Figure 9This is a cross-sectional schematic diagram used to illustrate the mating relationship between the drive rod and the connecting rod in Embodiment 2.

[0052] In the diagram: 1. Support plate; 11. Ground settlement joint; 12. Ground radiation shielding layer; 121. Barite concrete layer; 1211. Reinforcing mesh; 1212. Expansion joint; 1213. Compartment joint; 122. Radiation shielding lead plate; 1221. Compensating lead plate; 2. Exterior wall; 21. Wall settlement joint; 22. Wall radiation shielding layer; 221. Barite mortar layer; 23. Decorative panel; 3. Ground radiation shielding expansion joint; 31. Base plate; 311. Bending section; 32. Lead cover. 33. Plate; 33. Connector; 331. Connecting rod; 3311. Drive hole; 3312. Accommodating hole; 3313. Limiting piece; 332. Limiting ring plate; 34. Insulating pad; 4. Drive rod; 41. Abutting protrusion; 42. Relief groove; 5. Wall radiation protection telescopic device; 51. First radiation protection component; 511. Stainless steel base plate; 512. Rubber insulating plate; 513. Wall lead plate; 5131. Lead sheet; 52. Second radiation protection component; 53. Fixing piece. Detailed Implementation

[0053] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be described in further detail below.

[0054] Buildings containing settlement joints generally consist of two interlocking building modules. A gap, known as a settlement joint, is provided between the adjacent positions of the two modules. The two building modules can be constructed simultaneously, or one module can be modified or expanded based on the other. For ease of description, the two building modules will be described as a single unit below, and identical structural components located symmetrically on both sides of the settlement joint will be grouped as individual structural components.

[0055] Example 1

[0056] A radiation-proof building structure with settlement joints, referring to Figure 1 The system comprises two supporting slabs 1 and multiple exterior walls 2; both supporting slabs 1 are concrete slabs, and the exterior walls 2 are all brick structures. All the exterior walls 2 are connected end-to-end along the circumference of the supporting slabs 1 to form a closed frame, and the lower end of each exterior wall 2 is connected to the upper surface of one of the supporting slabs 1 by concrete mortar; the other supporting slab 1 is cast in place at the upper end of all the exterior walls 2, so that the two supporting slabs 1 and all the exterior walls 2 together enclose a closed space area for placing nuclear radiation inspection equipment or nuclear radiation therapy equipment. In another embodiment, the exterior walls 2 can also be cast from concrete. The portion of the settlement joint located at the supporting slab 1 is called the ground settlement joint 11, and the portion of the settlement joint located at the exterior wall 2 is called the wall settlement joint 21.

[0057] Reference Figure 2 and Figure 3 A ground radiation shielding expansion device 3 is installed on the upper surface of the support plate 1 at the ground settlement joint 11. The ground radiation shielding expansion device 3 includes a base plate 31, a lead cover plate 32, a connector 33, and an insulating pad 34. The base plate 31 is made of stainless steel plate, and a bent portion 311 is formed by bending downwards at the middle of the upper surface of the base plate 31 along its own width direction. The cross-section of the bent portion 311 is "V" shaped; the length direction of the bent portion 311 is set along the length direction of the base plate 31. The base plate 31 covers the ground settlement joint 11, and the bent portion 311 is located inside the ground settlement joint 11. The connector 33 includes steel nails, and the connector 33 fixes one side of the base plate 31 along its own width direction to the support plate 1 by means of a nail gun. In another embodiment, the base plate 31 can also be fixed to the support plate 1 on both sides along its own width direction by means of connectors 33.

[0058] Reference Figure 2 and Figure 3 The insulating pad 34 includes a rubber sheet; the insulating pad 34 is laid on the upper surface of the base plate 31, and the lower surface of the insulating pad 34 is in contact with the upper surface of the base plate 31. A lead cover plate 32 is covered on the upper surface of the insulating pad 34, and the shape of the lead cover plate 32 is the same as that of the base plate 31, so that the lower surface of the lead cover plate 32 is in contact with the upper surface of the insulating pad 34.

[0059] Reference Figure 2 and Figure 4 The upper surface of the support plate 1 is also provided with a ground radiation shielding layer 12, which includes a barite concrete layer 121, a ground reinforcement mesh (not shown in the figure), and several radiation shielding lead plates 122. All the radiation shielding lead plates 122 overlap each other and are laid on the upper surface of the support plate 1, and the radiation shielding lead plates 122 near the lead cover plate 32 overlap the upper surface of the lead cover plate 32. In this embodiment, all the radiation shielding lead plates 122 are arranged in a T-shape. The radiation shielding lead plates 122 and the lead cover plate 32 cooperate with each other to completely cover the support plate 1, thereby limiting the outward propagation of radiation.

[0060] Reference Figure 2 The barite concrete layer 121 is formed by cast-in-place barium sulfate concrete to cover both the radiation shielding lead plate 122 and the lead cover plate 32. A reinforcing mesh 1211 is laid within the barite concrete layer 121, positioned above the radiation shielding lead plate 122, to enhance the structural strength of the barite concrete layer 121. A ground reinforcement mesh, including a fiber mesh, is laid on the surface of the barite concrete layer 121 to improve the surface structural strength of the barite concrete layer 121 and reduce the likelihood of surface cracking.

[0061] Reference Figure 3 and Figure 5 The barite concrete layer 121 has integrally formed downward-through expansion joints 1212 on its upper surface on both sides of the ground settlement joint 11. The expansion joints 1212 are located directly above the overlap of the radiation shielding lead plate 122 and the lead cover plate 32. The upper surface of the barite concrete layer 121 also has integrally formed downward-through compartment joints 1213. A compensating lead plate 1221 is placed on the upper surface of the radiation shielding lead plate 122 at the compartment joint 1213 to compensate for the missing portion of the barite concrete layer 121 at the compartment joint 1213. The expansion joints 1212 and compartment joints 1213 work together to further reduce the risk of cracking in the barite concrete layer 121. In this embodiment, both the expansion joints 1212 and compartment joints 1213 are filled with building sealant (not shown in the figure) to achieve a waterproofing effect.

[0062] Reference Figure 6 The exterior wall 2 has a radiation shielding layer 22 on both sides along its thickness direction. The radiation shielding layer 22 includes a barite mortar layer 221 and a wall reinforcement mesh (not shown in the figure). The barite mortar layer 221 includes barium sulfate concrete mortar, which is applied to the surface of the exterior wall 2 by smearing. The wall reinforcement mesh includes a fiber mesh, which is laid on the surface of the barite mortar layer 221 to improve the structural strength of the surface of the barite mortar layer 221.

[0063] Reference Figure 6 The wall radiation shielding layer 22 also includes a reinforcing mesh (not shown in the figure), and multiple reinforcing meshes are arranged at intervals along the thickness direction of the outer wall 2; the reinforcing mesh is a steel wire mesh; the reinforcing mesh can strengthen the internal structural strength of the barite mortar layer 221, thereby further reducing the possibility of cracking of the barite mortar layer 221.

[0064] Reference Figure 6 and Figure 7 The outer wall 2 is further provided with a wall-mounted radiation shielding telescopic device 5 on each side along its predetermined thickness direction. The wall-mounted radiation shielding telescopic device 5 includes a first radiation shielding component 51, a second radiation shielding component 52, and a fixing member 53. The structure of the fixing member 53 is the same as that of the connecting member 33. The first radiation shielding component 51 and the second radiation shielding component 52 have the same structure, both including a stainless steel base plate 511, a rubber insulating plate 512, and a wall-mounted lead plate 513. The stainless steel base plate 511, the rubber insulating plate 512, and the wall-mounted lead plate 513 are stacked sequentially and glued together, and are connected to each other by screws. In another embodiment, the first radiation shielding component 51 and the second radiation shielding component 52 can also be made of a single layer of lead plate or multiple layers of lead plates stacked together.

[0065] Reference Figure 6 The first radiation shielding component 51 has a reverse "Z" shaped cross-section. During installation, the stainless steel base plate 511 of the first radiation shielding component 51 abuts against the barite mortar layer 221, and the first radiation shielding component 51 is fixed to the barite mortar layer 221 by the fastener 53. The side of the first radiation shielding component 51 away from the corresponding fastener 53 along the width direction of the wall settlement joint 21 is located inside the wall settlement joint 21. The second radiation shielding component 52 has a "I" shaped cross-section, and one side of the second radiation shielding component 52 covers the first radiation shielding component 51, while the other side is fixed to the barite mortar layer 221 located on the other side of the wall settlement joint 21 by the fastener 53. The wall lead plate 513 of the first radiation shielding component 51 abuts against the stainless steel base plate 511 of the second radiation shielding component 52, so that the first radiation shielding component 51 can move vertically relative to the second radiation shielding component 52 to accommodate building settlement. In another embodiment, the first radiation shielding component 51 and the second radiation shielding component 52 can also be directly embedded in the barite mortar layer 221.

[0066] Reference Figure 6 and Figure 7 Each wall-mounted lead plate 513 has a lead sheet 5131 at the location of each fastener 53. The lead sheet 5131 covers the fastener 53 and is glued to the wall-mounted lead plate 513 to further improve the radiation protection effect. A decorative panel 23 is also installed on the exterior wall 2 at the location of the wall settlement joint 21. The decorative panel 23 covers the corresponding first radiation protection component 51 and second radiation protection component 52, and each side of the decorative panel 23 along the width direction of the wall settlement joint 21 is fixed to the corresponding barite mortar layer 221 with steel nails to achieve a decorative effect.

[0067] This embodiment also discloses the construction method of the above-mentioned radiation-proof building structure with settlement joints, including the following steps:

[0068] S1. Construct the main building structure and build ground settlement joint 11 at the support plate 1 of the main building structure and wall settlement joint 21 at the exterior wall 2;

[0069] S2. Wall radiation shielding construction:

[0070] S21, Construction of wall radiation shielding layer 22:

[0071] S211. Clean and repair the wall surface: Seal and repair the quality defects on the surface of the exterior wall 2 with mortar, including brick joints, insufficient mortar, holes in the formwork, scaffolding holes and abandoned holes.

[0072] S212. The first layer of reinforcing mesh is fully hung, and standard mortar spots are made on the wall surface. The standard mortar spots are made of barite mortar.

[0073] S213. Apply the first layer of barite concrete mortar, and cover the first layer of reinforcing mesh inside. The thickness of the first layer is about 10mm.

[0074] S214. After the first layer of barite concrete mortar has solidified, apply the second layer of barite concrete mortar, about 10mm thick; cover the surface of the second layer of barite concrete mortar with a second layer of reinforcing mesh.

[0075] S215. After the second layer of barite concrete mortar has solidified, continue to apply the third layer of barite concrete mortar until the barite concrete mortar on the surface of the exterior wall 2 reaches the specified thickness, thus forming barite mortar layer 221. During the application of mortar, a reinforcing mesh is added approximately every 20mm. In another embodiment, the spacing between the reinforcing meshes can be adjusted according to actual needs.

[0076] S216. Lay a wall reinforcement mesh on the surface of the barite mortar layer 221 and compact it;

[0077] Construction at S22, wall settlement joint 21:

[0078] S221. The first radiation protection component 51 and the second radiation protection component 52 are sequentially fixed and installed on the surface of the barite mortar layer 221 on the corresponding side of the wall settlement joint 21 by the fastener 53, so that the first radiation protection component 51 and the second radiation protection component 52 can cooperate with each other to seal the wall settlement joint 21.

[0079] S222, Adhere lead sheet 5131: Cover the fastener 53 with lead sheet 5131 and adhere and fix lead sheet 5131 to the corresponding wall lead plate 513;

[0080] S223, Install decorative panel 23;

[0081] S3. Ground-based radiation shielding construction:

[0082] S31. Apply barite concrete mortar to the upper surface of support plate 1 and level it.

[0083] Construction of 11 ground settlement joints (S32):

[0084] S311. The base plate is placed on the ground settlement joint 11, and one side of the base plate 31 is fixed to the position of the support plate 1 on the corresponding side of the ground settlement joint 11 by the connector 33. The other side of the base plate 31 is directly attached to the upper surface of the support plate 1 on the corresponding side of the ground settlement joint 11.

[0085] S312. Place the insulating pad 34 and the lead cover plate 32 on the base plate 31 in sequence;

[0086] Construction of S33 and Ground Radiation Shielding Layer 12:

[0087] S331. The radiation shielding lead plates 122 are arranged in a T-shape on the upper surface of the support plate 1, and the two adjacent radiation shielding lead plates 122 overlap each other; the radiation shielding lead plates 122 near the lead cover plate 32 overlap with the lead cover plate 32; the overlap width is greater than or equal to 20mm.

[0088] S332, Plastering and Mortar Patches: Measure and lay out the lines to determine the compartment joint 1213 and elevation control points. Pop up elevation lines around the perimeter and make mortar patches. Both the plastering and mortar patches should be made of barite fine aggregate concrete. A 100mm wide compensating lead plate 1221 needs to be laid at the compartment joint 1213.

[0089] S333, Install the template for compartment joint 1213 and expansion joint 1212 to form compartment joint 1213 and expansion joint 1212;

[0090] S334. Pour barite concrete and compact it. After the barite concrete layer 121 is poured to the elevation and compacted, lay the steel mesh 1211 and press the steel mesh 1211 into 1 / 3 of the depth of the barite concrete layer 121.

[0091] After the S335 barite concrete layer 121 has solidified, remove the formwork of the compartment joint 1213 and the expansion joint 1212, and clean the compartment joint 1213 and expansion joint 1212.

[0092] S336. Fill the compartment joint 1213 and expansion joint 1212 with building sealant;

[0093] S4. Maintenance.

[0094] When the outer wall 2 is located on one side of the wall settlement joint 21 and the support plate 1 is located on one side of the ground settlement joint 11, and the outer wall 2 settles downward, the first radiation shielding component 51 moves relative to the second radiation shielding component 52, and the ground radiation shielding expansion device 3 automatically extends and retracts, so that the first radiation shielding component 51 and the second radiation shielding component 52 always cover the wall settlement joint 21 and the ground radiation shielding expansion device 3 always covers the ground settlement joint 11, thereby helping to reduce the possibility of radiation leakage and propagation.

[0095] Example 2

[0096] The difference between this embodiment and Embodiment 1 is that:

[0097] Reference Figure 8The connector 33 includes a connecting rod 331 and a limiting ring plate 332. The limiting ring plate 332 is integrally formed with the peripheral wall of one end of the connecting rod 331. The end of the connecting rod 331 away from the limiting ring plate 332 is tapered. When installing the base plate 31, after the position of the base plate 31 is determined, the end of the connecting rod 331 away from the limiting ring plate 332 is brought into contact with the upper surface of the base plate 31. Then, the end of the connecting rod 331 near the limiting ring plate 332 is struck so that the connecting rod 331 passes through the base plate 31 and is inserted into the support plate 1 until the limiting ring plate 332 abuts against the upper surface of the base plate 31, thus fixing the base plate 31 to the support plate 1.

[0098] Reference Figure 8 and Figure 9 The connecting rod 331 has a driving hole 3311 integrally formed on the end wall of one end of the limiting ring plate 332 along the length direction of the connecting rod 331. The driving hole 3311 is a tapered hole, and the inner diameter of the driving hole 3311 gradually decreases along the length direction of the connecting rod 331 away from the limiting ring plate 332. The peripheral wall of the connecting rod 331 has a receiving hole 3312, which communicates with the driving hole 3311. The inner end wall of the receiving hole 3312 near the limiting ring plate 332 has a limiting piece 3313 integrally formed. The end of the limiting piece 3313 away from the limiting ring plate 332 extends along the length direction of the connecting rod 331 and is inclined towards the axis of the driving hole 3311. A drive rod 4 is inserted into the drive hole 3311. When the drive rod 4 is struck, the end wall of the drive rod 4 facing the bottom wall of the drive hole 3311 abuts against the side wall of the limiting piece 3313, thereby driving the limiting piece 3313 to bend and deform away from the drive hole 3311, pushing the limiting piece 3313 towards the outside of the receiving hole 3312, so that the limiting piece 3313 can be pressed against the support plate 1, thereby improving the stability of the connection between the connecting rod 331 and the support plate 1. In this embodiment, both the connecting rod 331 and the drive rod 4 are made of steel.

[0099] Reference Figure 8 and Figure 9The drive rod 4 has an integrally formed abutment protrusion 41 on the peripheral wall of the end near the bottom wall of the drive hole 3311; the end wall of the drive rod 4 near the abutment protrusion 41 is provided with a relief groove 42 along the length direction of the drive rod 4, the inner side wall of the relief groove 42 is connected to the peripheral wall of the drive rod 4, and the bottom wall of the relief groove 42 is located on the side of the abutment protrusion 41 near the limiting ring plate 332. During the process of the drive rod 4 pushing against the limiting piece 3313, the abutment protrusion 41 abuts against the inner wall of the drive hole 3311, and the drive rod 4 deforms under pressure, causing the width of the relief groove 42 to automatically decrease; when one end of the drive rod 4 near the limiting ring plate 332 is completely submerged in the drive hole 3311, the limiting piece 3313 abuts against the support plate 1 and the abutment protrusion 41 aligns with the receiving hole 3312, the drive rod 4 deforms and recovers, so that the abutment protrusion 41 is inserted into the receiving hole 3312, thereby reducing the possibility of the limiting piece 3313 deforming into the receiving hole 3312, and thus further improving the stability of the connection between the connecting rod body 331 and the support plate 1. In another embodiment, the connecting member 33 can also be an expansion bolt or other types of structural components.

[0100] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A radiation-proof building structure with settlement joints, comprising two support plates (1) and a plurality of external walls (2) located between the two support plates (1), wherein all the external walls (2) are sequentially connected end to end along the circumference of the support plates (1); each external wall (2) is connected to each support plate (1); characterized in that: The outer wall (2) is provided with a wall settlement joint (21) through it, and the support plate (1) is provided with a ground settlement joint (11) through it. The ground settlement joint (11) and the wall settlement joint (21) are interconnected. The upper surface of the support plate (1) is provided with a ground radiation shielding layer (12) and a ground radiation shielding expansion device (3) covering the ground settlement joint (11). The ground radiation shielding expansion device (3) includes a base plate (31), a lead cover plate (32) covering the base plate (31), and a connector (33) for connecting the base plate (31) and the support plate (1). Both the base plate (31) and the lead cover plate (32) are recessed downwards and provided with a bending part (311). (311) is set along the length of the ground settlement joint (11); the base plate (31) is connected to the corresponding position of the support plate (1) along at least one side of the width direction of the ground settlement joint (11) by a connector (33); the surface of the outer wall (2) is provided with a wall radiation shielding layer (22) and a wall radiation shielding expansion device (5) covering the wall settlement joint (21); the wall radiation shielding layer (22) includes a barite mortar layer (221) located on the surface of the outer wall (2), a wall reinforcement mesh laid on the surface of the barite mortar layer (221), and multiple reinforcing meshes set inside the barite mortar layer (221), all of which are along the outer wall. (2) The thickness direction is arranged sequentially at intervals; the outer wall (2) is also provided with a wall surface radiation protection expansion device (5) on each side along the self-defined thickness direction. The wall surface radiation protection expansion device (5) includes a first radiation protection component (51), a second radiation protection component (52) and a fastener (53); the first radiation protection component (51) and the second radiation protection component (52) have the same structure, both including a stainless steel base plate (511), a rubber insulation plate (512) and a wall surface lead plate (513); the cross-section of the first radiation protection component (51) is in the shape of an inverted "Z"; during installation, the stainless steel base plate (511) of the first radiation protection component (51) is brought into contact with the barite mortar layer (221) and fixed by the fastener. (53) Fix the first radiation shielding component (51) to the barite mortar layer (221); the first radiation shielding component (51) is located in the wall settlement joint (21) along the width direction of the wall settlement joint (21) and away from the corresponding fastener (53); the cross-section of the second radiation shielding component (52) is in the shape of "I", and one side of the second radiation shielding component (52) is covered by the first radiation shielding component (51), and the other side is fixed to the barite mortar layer (221) located on the other side of the wall settlement joint (21) by the fastener (53). The wall lead plate (513) of the first radiation shielding component (51) and the stainless steel base plate (511) of the second radiation shielding component (52) abut against each other.

2. The radiation-proof building structure with settlement joints according to claim 1, characterized in that: The ground radiation shielding layer (12) includes a barite concrete layer (121) and a ground reinforcement mesh laid on the surface of the barite concrete layer (121).

3. The radiation-proof building structure with settlement joints according to claim 2, characterized in that: The ground radiation shielding layer (12) also includes several overlapping radiation shielding lead plates (122), which are located between the barite concrete layer (121) and the support plate (1).

4. The radiation-proof building structure with settlement joints according to claim 3, characterized in that: The connector (33) includes a connecting rod (331) and a limiting ring plate (332) connected to the peripheral wall of one end of the connecting rod (331); the end of the connecting rod (331) away from the limiting ring plate (332) is used to pass through the bottom plate (31) and be inserted into the support plate (1). The connecting rod body (331) has a driving hole (3311) on the end wall of one end of the limiting ring plate (332). The inner diameter of the driving hole (3311) gradually decreases along the length of the connecting rod body (331) away from the limiting ring plate (332). The peripheral wall of the connecting rod body (331) has a receiving hole (3312) that communicates with the interior of the driving hole (3311). The connecting rod body (331) has a limiting piece (3313) that extends into the driving hole (3311). A driving rod (4) is inserted into the driving hole (3311). The driving rod (4) is used to abut against the limiting piece (3313) to push the limiting piece (3313) outward from the receiving hole (3312).

5. The radiation-proof building structure with settlement joints according to claim 4, characterized in that: The drive rod (4) is provided with an abutment protrusion (41) for insertion into the receiving hole (3312); the end wall of the drive rod (4) near the abutment protrusion (41) is provided with a relief groove (42) for elastic deformation of the drive rod (4), and the bottom wall of the relief groove (42) is located on the side of the abutment protrusion (41) near the limiting ring plate (332).

6. The radiation-proof building structure with settlement joints according to claim 5, characterized in that: The base plate (31) includes a metal plate; the ground radiation protection telescopic device (3) also includes an insulating pad (34) disposed between the base plate (31) and the lead cover plate (32).

7. The radiation-proof building structure with settlement joints according to claim 6, characterized in that: The ground radiation protection expansion joint (3) is located inside the ground radiation protection layer (12); the upper surface of the ground radiation protection layer (12) located on both sides of the ground settlement joint (11) is provided with expansion joints (1212) extending downwards.

8. A construction method for the radiation-shielding building structure with settlement joints as described in claim 7, characterized in that: The steps include the following: Wall radiation shielding construction: Construction of radiation shielding layer on wall surface (22); Install the first radiation shielding component (51) and the second radiation shielding component (52) in sequence; Ground-based radiation shielding construction: Install the base plate (31); cover the base plate (31) with the insulating pad (34) and the lead cover plate (32) in sequence; Lay radiation shielding lead plates (122); the radiation shielding lead plates (122) are laid out in a T-shaped overlapping pattern; the radiation shielding lead plates (122) and lead cover plates (32) overlap with each other; The ground radiation shielding layer (12) is constructed, and the radiation shielding lead plate (122) and lead cover plate (32) are both installed inside it; An expansion joint (1212) is provided at the overlap position of the radiation shielding lead plate (122) and the lead cover plate (32) on the ground radiation shielding layer (12).

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