A finite element simulation analysis method for the strength of the tunnel construction rescue cabin
A technology of simulation analysis and tunnel construction, applied in the direction of instrumentation, design optimization/simulation, calculation, etc., can solve the problems of long development cycle, inconvenient market promotion of lifesaving system for tunnel construction, lack of guidance and specification requirements for design and manufacture of lifesaving cabins for tunnel construction, etc. problems, to achieve the effect of reducing test costs, improving design rationality and reliability, and shortening product design cycle
Active Publication Date: 2019-08-30
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology
However, at present, there are few materials for tunnel construction rescue cabins, and there are very few methods for analyzing and verifying the strength of tunnel construction rescue cabins. There is a lack of guidance and specification requirements for the design and manufacture of tunnel construction rescue cabins, which is not convenient for underground construction of tunnel construction lifesaving systems. The market-oriented promotion of the same series of products has led to a longer cycle of standardized development of qualification verification
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[0030] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0031] The basic principle of the present invention is to carry out three-dimensional solid modeling to the rescue cabin structure on the basis of determining the basic frame structure of the tunnel construction rescue cabin, for example, various commonly used three-dimensional modeling software such as CAD can be used for modeling to simulate lifesaving in detail The outer wall of the cabin ...
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The invention belongs to the field of matching technology of tunnel construction rescue, and discloses a finite element simulating and analyzing method for capsule body strength of a tunnel construction escape capsule. The method comprises the following steps of (a), modeling according to the actual dimension of the capsule body of the escape capsule, and obtaining a capsule body model which comprises a capsule body structure and key parts; (b), performing simulation calculation on a load which is applied on the external surface area of the capsule body, loading the load on the capsule body model, and calculating a simulated result which reflects a beam column and a shell in the escape capsule; and (c) performing simulation calculation for obtaining a simulation result which reflects the capsule door, the life-saving door and the observation window of the escape capsule, and correspondingly determining whether damage failure occurs at the key parts. The finite element simulating and analyzing method can realize simulation and analysis on the capsule body strength of the escape capsule in different working conditions and furthermore has advantages of high practicability and reliable simulation result.
Description
technical field [0001] The invention belongs to the field of underground engineering construction, and more specifically relates to a finite element simulation analysis method for the strength of a tunnel construction rescue cabin. Background technique [0002] In recent years, construction accidents in tunnels with weak surrounding rocks have occurred frequently, resulting in heavy losses of equipment and personnel, and great social impact. According to the investigation of post-disaster accidents, 70% of the weak surrounding rocks collapsed behind the tunnel face. Trapped people are injured or killed, so the tunnel construction rescue cabin has a wide range of application space and market value. [0003] The tunnel construction rescue capsule can provide basic life support for the refugees after the accident, and its role is extremely important. Therefore, the rescue capsule itself needs to have a certain degree of safety and reliability, and can withstand a certain load ...
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IPC IPC(8): G06F17/50
CPCG06F30/23G06F30/367
Inventor 苗德海王春梅王伟邵鹏程韩向阳李鸣冲颜志伟谢俊
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP