Medical anti-radiation wall construction method

Abstract

The invention provides a medical anti-radiation wall construction method which comprises the following steps: a concrete pouring step: continuously pouring concrete by adopting a slope and layered and segmented pouring construction mode to realize the construction of a wall structure; and a coating construction step: after the construction of the wall body structure is completed, the radiation-proof coating is painted layer by layer. Continuous pouring of concrete is carried out by adopting a slope and layered and segmented pouring construction mode, construction of the wall body structure is achieved, after construction of the wall body structure is completed, the radiation protection coating is painted in a layered mode, the nuclear magnetic shielding effect is achieved on corresponding area protection in the construction process, and the safe working and medical seeing environment is achieved; the problem that an existing traditional brick masonry is low in radiation protection performance is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a method for constructing a medical radiation-proof wall. Background Art

[0002] The proper use of radiation in general hospitals has brought numerous benefits to healthcare. However, radiation exposure also poses numerous risks to humans and the environment. The goal of radiation protection research is to minimize the consumption of social resources and reduce the harmful effects of radiation. Radiation protection technology for hospital buildings has evolved alongside advances in equipment. This continuous advancement of protection technology has led to the continuous transfer of related technologies to the construction industry, resulting in the development of a large number of new radiation protection materials and structures. This is primarily reflected in the industrialization of radiation protection.

[0003] Radiation protection of comprehensive hospital buildings is an interdisciplinary marginal subject. Through the study of radiation protection, it will help architects, hospital managers and other related professional staff to communicate with each other, give full play to their respective strengths, complement each other's advantages, work together, and continuously improve the technical level of radiation protection of hospital buildings.

[0004] Comprehensive hospitals include nuclear radiation departments and imaging departments. In order to prevent doctors and patients from being exposed to radiation areas for a long time and causing irreversible damage to the body, nuclear radiation areas need to be protected.

[0005] Numerous studies have demonstrated that ionizing radiation, such as X-rays, interacts with cells, tissues, and body fluids, ionizing atoms or molecules. This can directly damage certain macromolecular structures, such as protein chains, RNA and DNA fragments, and enzymes crucial for metabolism. It can even directly damage cellular structures. Furthermore, radiation can ionize water molecules, forming free radicals that indirectly damage the body. Radiation damage to human cells can cause pathological changes in the body itself, while damage to reproductive cells can affect offspring through inheritance. Specifically, radiation can cause general fatigue, decreased appetite, leukopenia, decreased immunity, chromosome breakage or gene mutations, premature aging, growth disorders, infertility, fetal malformations, and even various cancers and death. Therefore, radiation protection is crucial in daily life and work, and proper shielding is essential in areas exposed to ionizing radiation.

[0006] Lead plates have good shielding properties against radiation and are widely used in hospitals and other places. Traditional brick masonry currently available on the market has low radiation protection performance. Summary of the Invention

[0007] In view of this, the present invention proposes a medical radiation-proof wall construction method, aiming to solve the problem of low radiation-proof performance of existing traditional brick masonry.

[0008] The present invention proposes a medical radiation-proof wall construction method, which includes the following steps: a concrete pouring step, in which concrete is continuously poured using an inclined, layered and segmented pouring construction method to achieve wall structure construction; and a coating construction step, in which radiation-proof coating is applied layer by layer after the wall structure construction is completed.

[0009] Furthermore, in the above-mentioned medical radiation protection wall construction method, the process flow of the concrete pouring step is as follows: foundation construction - guide wall joint treatment - wall reinforcement binding - wall formwork installation - horizontal construction joint sealing - wall concrete pouring - wall formwork removal - top plate support frame erection - upper wall and top plate formwork installation - top plate support frame erection - upper wall and top plate formwork installation - beam reinforcement binding - plate lower layer reinforcement installation - plate upper layer reinforcement installation - formwork reinforcement - wall concrete layered pouring - beam bottom concrete layered pouring - plate concrete layered pouring - concrete thermal insulation, moisture retention and temperature measurement - formwork removal.

[0010] Furthermore, in the above-mentioned medical radiation protection wall construction method, in the concrete pouring step, the interval time between the upper and lower layers during layered pouring is less than or equal to the initial setting time of the concrete, and the pouring of the wall panel concrete is stopped after reaching the bottom of the beam, and after a preset solidification time, the upper concrete is poured; the pouring thickness of each layer during layered pouring is 300-500mm.

[0011] Furthermore, in the above-mentioned medical radiation-proof wall construction method, when preparing the radiation-proof coating applied in the coating construction step, the coating and cement are first mixed evenly, and then water is added and stirred.

[0012] Furthermore, in the above-mentioned medical radiation-proof wall construction method, before the radiation-proof paint is applied in layers, the gaps around the door and window frames are caulked, and cement mortar is used to fill and flatten the space between the inner side of the door and window openings and the window frames.

[0013] Furthermore, in the above-mentioned medical radiation-proof wall construction method, when the radiation-proof paint is applied in layers, the thickness of each layer of paint is less than or equal to 10 mm, and the interval between applying each layer of paint is 8-12 hours.

[0014] Furthermore, in the above-mentioned medical radiation protection wall construction method, the distance between adjacent ash cakes is less than or equal to 2m.

[0015] Furthermore, in the above-mentioned medical radiation-proof wall construction method, the process flow of the paint construction steps is as follows: cleaning the inner wall base - nailing the wire mesh - watering the base to moisten the base - spraying the wall - finding the rules - making mortar cakes - punching ribs - making corner guards - layered painting - cement mortar surface construction - maintenance.

[0016] Furthermore, in the above-mentioned medical radiation protection wall construction method, in the concrete pouring step, the thickness of each layer of concrete poured during layered pouring is less than or equal to 1.25 times the effective action length of the vibrating rod, and is inserted 50~100mm into the next layer of concrete during vibration; in the concrete pouring step, the insertion points of the vibrating rod are arranged in a plum blossom pattern, the insertion point spacing is 500mm, the vibration time is 15s~20s, and the vibration is performed until slurry appears on the surface.

[0017] Furthermore, in the above-mentioned medical radiation protection wall construction method, in the concrete pouring step, the water-cement ratio of the concrete used is 0.4-0.5, and the thickness of the concrete pouring wall is 0.6m-3m.

[0018] The medical radiation-proof wall construction method provided by the present invention adopts an inclined, layered and segmented pouring construction method to continuously pour concrete to realize the construction of the wall structure. After the wall structure construction is completed, the radiation-proof paint is painted in layers, which plays a nuclear magnetic shielding role for the corresponding area protection during the construction process, achieving a safe working and medical environment, and solving the problem of low radiation protection performance of existing traditional brickwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings: Figure 1 This is a flowchart of the medical radiation protection wall construction method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] See also Figure 1 , which is a flowchart of the medical radiation protection wall construction method provided by an embodiment of the present invention. As shown in the figure, the medical radiation protection wall construction method includes the following steps: In the concrete pouring step S1, the concrete is poured continuously by adopting an inclined surface, layered and segmented pouring construction method to realize the construction of the wall structure.

[0022] Specifically, hospital construction projects are highly radio-permeable, placing stringent requirements on the thickness and density of concrete to effectively absorb all radiation. This is especially true for linear accelerators used in radiotherapy, where the thickness typically ranges from 0.6m to 3m. High density and compactness enhance the concrete's shielding effectiveness against various radiation sources, minimizing radiation contamination. Concrete mix design requirements include: ① Aggregate with high density; ② The cement content of the concrete should not be excessively high; ③ The water-cement ratio should be controlled between 0.4 and 0.5; and ④ The concrete slump should not be excessive, generally controlled between 140 and 160mm. Before concrete pouring begins, necessary preparations must be completed. Specifically, sufficient raw materials such as cement and admixtures must be ensured. Based on this, the concrete mix ratio should be scientifically designed through testing and verification. During wall concrete pouring, a layered approach should be adopted, with the top-down time not exceeding the initial setting time of the concrete. After the wall panel concrete reaches the bottom of the beam, pouring should be paused for one hour to allow the concrete to settle before pouring the upper concrete. The concrete pouring process follows the following steps: foundation construction - guide wall joint preparation - wall reinforcement binding - wall formwork installation - horizontal construction joint sealing - wall concrete pouring - wall formwork removal - top slab support frame installation - upper wall and top slab formwork installation - top slab support frame installation - upper wall and top slab formwork installation - beam reinforcement binding - lower slab reinforcement installation - upper slab reinforcement installation - formwork reinforcement - wall concrete pouring in layers - beam bottom concrete pouring in layers - slab concrete pouring in layers - concrete insulation and moisture curing and temperature measurement - formwork removal. During layered pouring, the interval between each layer must be less than or equal to the initial setting time of the concrete. Wall slab concrete pouring stops at the bottom of the beam, and after a preset set time, the upper concrete layer is poured. Each layer is poured 300-500mm thick. The heat of hydration generated during each concrete pour must be accurately calculated to reduce stress concentration. Use the inclined surface, layered and segmented pouring construction method for continuous pouring (the thickness of the layered pouring is controlled at 300mm~500mm), so as to proceed step by step and ensure that the upper layer of concrete is implemented before the lower layer of concrete is finally set. After pouring is completed, it must be covered with insulation as soon as possible. When applying the anti-radiation paint, first mix the paint and cement evenly, then add water and stir; wherein, when the anti-radiation paint is applied in layers, the thickness of each layer of paint is less than or equal to 10mm, and the interval time between each layer of paint is 8-12 hours; the spacing between the ash cakes is less than or equal to 2m; before applying the anti-radiation paint in layers, caulk the seams around the door and window frames, and use cement mortar to fill and flatten the space between the inner side of the door and window openings and the window frames.

[0023] Paint construction step S2: After the wall structure construction is completed, the radiation protection paint is applied in layers.

[0024] Specifically, the process flow of the coating construction step is as follows: cleaning the inner wall base - nailing wire mesh - watering and moistening the base - wall spraying - finding the rules - making mortar cakes - punching reinforcement - making corner protection - layered painting - cement mortar surface construction - maintenance. In the concrete pouring step, the thickness of each layer of concrete poured in layers is less than or equal to 1.25 times the effective action length of the vibrating rod, and is inserted into the next layer of concrete 50~100mm during vibration; in the concrete pouring step, the insertion points of the vibrating rod are arranged in plum blossom patterns, with a spacing of 500mm between the insertion points, and the vibration time is 15s~20s, and the vibration is carried out until the slurry comes out of the surface. The water-cement ratio of the concrete used is 0.4-0.5, and the thickness of the concrete pouring wall is 0.6m-3m. After the wall structure is completed, cement mortar should be used to level the wall surface. The flatness and smoothness must be strictly controlled during the construction process. On the one hand, it is necessary to avoid the protruding surface of the inner plaster layer causing insufficient thickness of the anti-radiation coating layer, and on the other hand, it is necessary to prevent the concave surface of the plaster layer from wasting the anti-radiation coating.

[0025] (1) Before the paint is applied, the quality of the structural wall should be checked to ensure that no sand, dust or debris is left to ensure that the paint is firmly bonded.

[0026] (2) Before the construction of the anti-radiation coating, ash cakes should be set at intervals of no more than 2 meters, and the thickness of the anti-radiation coating layer should be strictly controlled and should not be less than the designed thickness. Ash cakes should not be placed in the position facing the radiation equipment. (3) Radiation protection paint has a high bulk density. The paint should be applied in layers, with each layer not exceeding 10mm. The interval between coats is generally 8-12 hours.

[0027] (4) The construction site must be well ventilated and the temperature must not be lower than 15°C to prevent cracks from forming on the wall surface.

[0028] (5) When painting, start from the bottom up and press it flat. Do not push or pull it repeatedly. Do not press the base to make it smooth. Just keep it flat. Press and roughen it for the last time to prevent cracking and falling off.

[0029] (6) When mixing materials, the mixing should be carried out strictly according to the ratio. First, mix the paint and cement evenly, and then add water and stir to ensure that the paint is even.

[0030] (7) Before the paint is applied, the gaps around the door and window frames need to be filled and leveled with cement mortar between the inside of the door and window openings and the window frames.

[0031] (8) Check that the anti-radiation coating mortar layer does not have hollowing and cracking. The thickness of the anti-radiation coating mortar must meet the actual shielding protection requirements before the construction of the cement mortar surface layer can be carried out.

[0032] Radiation-proof coatings are made from a mixture of fine metal particles and stone powder (commonly barite and iron ore) in a specific ratio, along with cement sand and admixtures. They have high density and bulk density. If the coating layer thickness meets the design requirements, it can fully prevent radiation penetration and absorb some of the radiation.

[0033] In summary, the medical radiation-proof wall construction method provided in this embodiment adopts an inclined, layered and segmented pouring construction method to continuously pour concrete, thereby realizing the construction of the wall structure. After the construction of the wall structure is completed, the radiation-proof paint is applied in layers, which plays a nuclear magnetic shielding role in the protection of the corresponding area during the construction process, thereby achieving a safe working and medical environment and solving the problem of low radiation protection performance of existing traditional brickwork.

[0034] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for constructing a medical radiation-proof wall, characterized in that: include: The concrete pouring step adopts the construction method of pouring concrete continuously on an inclined surface and in layers and sections to realize the construction of the wall structure; Paint construction steps: After the wall structure construction is completed, apply anti-radiation paint in layers.

2. The medical radiation protection wall construction method according to claim 1, characterized in that: The process flow of the concrete pouring step is as follows: foundation construction - guide wall joint treatment - wall reinforcement binding - wall formwork installation - horizontal construction joint sealing - wall concrete pouring - wall formwork removal - top plate support frame erection - upper wall and top plate formwork installation - top plate support frame erection - upper wall and top plate formwork installation - beam reinforcement binding - plate lower layer reinforcement installation - plate upper layer reinforcement installation - formwork reinforcement - wall concrete layered pouring - beam bottom concrete layered pouring - plate concrete layered pouring - concrete thermal insulation and moisture maintenance temperature measurement - formwork removal.

3. The medical radiation protection wall construction method according to claim 1, characterized in that: In the concrete pouring step, the interval time between the upper and lower layers during layered pouring is less than or equal to the initial setting time of the concrete, and the pouring of the wall panel concrete stops after reaching the bottom of the beam. After a preset settling time, the upper concrete is poured again; the pouring thickness of each layer during layered pouring is 300-500mm.

4. The medical radiation protection wall construction method according to claim 2, characterized in that: When preparing the radiation-proof coating applied in the coating construction step, the coating and cement are first mixed evenly, and then water is added and stirred.

5. The medical radiation protection wall construction method according to claim 2, characterized in that: Before applying the anti-radiation paint in layers, caulk the gaps around the door and window frames, and use cement mortar to fill and flatten the space between the inside of the door and window openings and the window frames.

6. The medical radiation protection wall construction method according to claim 2, characterized in that: When the radiation protection paint is applied in layers, the thickness of each layer of paint is less than or equal to 10 mm, and the interval between applying each layer of paint is 8-12 hours.

7. The medical radiation protection wall construction method according to claim 2, characterized in that: The distance between adjacent ash cakes is less than or equal to 2m.

8. The medical radiation protection wall construction method according to any one of claims 1 to 7, characterized in that: The process flow of the coating construction steps is as follows: cleaning the inner wall base - nailing the wire mesh - watering the base - spraying the wall - finding the rules - making mortar cakes - punching reinforcement - making corner protection - layered painting - cement mortar surface construction - maintenance.

9. The medical radiation protection wall construction method according to claim 8, characterized in that: In the concrete pouring step, the thickness of each layer of concrete poured during layered pouring is less than or equal to 1.25 times the effective length of the vibrating rod, and the vibrating rod is inserted 50 to 100 mm into the next layer of concrete during vibrating; In the concrete pouring step, the insertion points of the vibrating rod are arranged in a plum blossom pattern, the insertion point spacing is 500 mm, the vibration time is 15s to 20s, and the vibration is performed until slurry appears on the surface.

10. The medical radiation protection wall construction method according to claim 8, characterized in that: In the concrete pouring step, the water-cement ratio of the concrete used is 0.4-0.5, and the thickness of the concrete pouring wall is 0.6m-3m.

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