Radiation-Proof Concrete Hole Reserved Split Bolt Construction
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Solution Overview
Problem
Existing radiation-proof concrete structures have weak points such as split bolts, wall bushings, and reserved holes that can compromise the integrity of the radiation shielding, leading to potential radiation leakage.
Innovation Solution
A construction method for a radiation-proof concrete hole reserved split bolt, which includes a hole reserved sleeve, an inclined recoverable split bolt, an inclined split bolt, wedge-shaped fasteners, and nuts, designed to reduce the number of weak points and enhance radiation shielding effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional split bolts, wall bushings, and reserved holes are used in radiation-proof concrete structures, then the structure can be constructed with standard components, but the radiation shielding integrity is compromised due to multiple weak points that can cause radiation leakage
Solution Approach 1:
The patent merges the functions of split bolts, wall bushings, and reserved holes into a single integrated hole reserved split bolt component. This consolidation reduces the number of separate weak points in the radiation-proof concrete structure, thereby improving radiation shielding integrity while maintaining ease of manufacture through a unified design approach.
Solution Approach 2:
The hole reserved split bolt is designed with segmented components including a sleeve portion, split bolt portion, and water stop sheet that can be assembled together. This segmentation allows for easier manufacturing and assembly while creating a unified structure that eliminates multiple separate weak points, resolving the contradiction between ease of manufacture and radiation shielding integrity.
2Adaptability or versatility
If multiple separate components (split bolts, wall bushings, reserved holes) are used to maintain structural functionality, then the structure remains accessible and functional, but the number of weak points increases leading to higher radiation leakage risk
Solution Approach 1:
The invention combines multiple functional components into a single hole reserved split bolt assembly that provides both structural support and radiation shielding capabilities. This merging reduces the number of interfaces and potential leakage paths while maintaining the necessary structural functionality, thereby reducing radiation leakage risk without sacrificing adaptability.
Solution Approach 2:
The hole reserved split bolt is designed as a multi-functional component that simultaneously serves as a structural fastener, a radiation shielding element, and a water stop barrier. This universality eliminates the need for multiple separate components, reducing the number of weak points and radiation leakage risks while maintaining full structural functionality.
3Reliability
If threaded split bolts are left in concrete structures to prevent radiation leakage, then radiation shielding is improved, but the complexity of the structure increases and potential risks remain
Solution Approach 1:
The patent extracts the threaded split bolt from the concrete structure after the concrete has set, leaving only the sleeve portion embedded in the concrete. This extraction reduces structure complexity by removing protruding components while maintaining radiation shielding integrity through the remaining embedded sleeve and proper sealing arrangements.
Solution Approach 2:
The hole reserved split bolt is pre-assembled with the sleeve and water stop sheet before concrete pouring. This preliminary action ensures proper positioning and sealing is achieved during the concrete pouring process, reducing the need for complex post-construction adjustments and simplifying the overall structure while maintaining radiation shielding reliability.
Data Source
AI summary
A construction method for a radiation-proof concrete hole reserved split bolt includes: 1) mounting a hole reserved sleeve; 2) mounting an inclined recoverable split bolt; 3) mounting an inclined split bolt; 4) fixing the inclined recoverable split bolt and an inclined split bolt main body; 5) pouring concrete, and dismantling related components; 6) plugging the inclined split bolt main body; and 7) plugging the hole reserved sleeve. According to the construction method, the hole reserved sleeve is obliquely arranged, the inner side of the hole reserved sleeve is sprayed with a radiation-proof coating with the functions of reducing radiation ray reflection and absorbing certain radiation rays, and in addition, after the construction of a pipeline or a line in the hole reserved sleeve is finished, the openings at both ends of the hole reserved sleeve are plugged with a radiation-proof mortar incorporated with a micro-expanding agent and a waterproof agent.