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中南大学学报(自然科学版)

Journal of Central South University

第47卷    第3期    总第259期    2016年3月

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文章编号:1672-7207(2016)03-0882-07
救生舱防水承压研究
詹子娜1, 2,金龙哲1, 2,黄志凌1,李乾坤1

(1. 北京科技大学土木与环境工程学院,北京,100083;
2. 矿山避险技术研究中心,北京,100083
)

摘 要: 为提高矿井突水后救生舱综合防护能力,采用理论计算、数值模拟和现场试验相结合的方法,研究防水型救生舱外壳的承水压性能。基于潜艇设计理论,计算环肋圆柱壳承压性能的3个关键应力和2个稳定性临界载荷,得到外壳承压结构的关键因素(即壳板厚度、加强筋间距、加强筋型材)对其应力及稳定性的影响规律,提出一组防水型救生舱外壳设计的最优方案,并通过ANSYS数值模拟和现场试验进行验证。研究结果表明:制造的防水舱能承受水深300 m(3 MPa)静水压力,最大应力为288.6 MPa,最大形变量为3 mm。

 

关键词: 救生舱;环肋圆柱壳;承压性能;关键应力;稳定性载荷

Research on waterproof and bearing pressure of refuge chamber
ZHAN Zina1, 2, JIN Longzhe1,2, HUANG Zhiling1, LI Qiankun1

1. Civil and Environmental Engineering Institute, University of Science and Technology Beijing, Beijing 100083, China;
2. Mine Emergency Technology Research Center, Beijing 100083, China

Abstract:In order to improve the comprehensive protection of mine refuge chamber when the flooding accidents occurred, the bearing pressure performance of waterproof refuge chamber was studied by the combining theoretical calculation, numerical simulation and field test. Based on the submarine knowledge, three key stresses and two stability loads closely related to the ringstiffened cylindrical shell were calculated. Three crucial factors were taken into account, i.e. shell thickness, stiffeners distance and stiffener shapes, and the laws of the stress and stability influenced by the factors were found out. Finally, the optimal design of waterproof refuge chamber was proposed, which was verified by ANSYS numerical simulation and field test. The results show that the refuge chamber produced according to the program can bear hydrostatic pressure 3 MPa, being equivalent to the pressure of 300 m water depth, the maximum stress is 288.6 MPa, and the maximum displacement is 3mm.

 

Key words: refuge chamber; ring stiffened cylindrical shell; bearing pressure performance; key stress; stability load

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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