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Mathematical Problems in Engineering
Volume 2017 (2017), Article ID 3491290, 5 pages
Research Article

Structure Optimization of Safety Investment of Petrochemical Port Enterprises

1School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China
2China Waterborne Transport Research Institute, Beijing 100088, China

Correspondence should be addressed to Zhiqiang Hou

Received 20 March 2017; Accepted 10 May 2017; Published 30 May 2017

Academic Editor: Chaudry M. Khalique

Copyright © 2017 Zhiqiang Hou and Peng Zhao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Safety investment is an essential guarantee to identify and manage potential security problems in petrochemical port enterprises. The reasonability of safety investment structure determines overall security risks in an enterprise. Based on the definition of risks, combining Cobb-Douglas production function with FTA probability model, and taking Gompertz curve model as the constraint condition, structure optimization model of safety investment is built in order to minimize risks and work out the safety investment structure of petrochemical port enterprises. According to the case study, the calculations indicate that safety investment in corporate management presents a larger growth rate than past years and that unsafe act of human being is the main factor accounting for the greatest probability of occurrence, which is consistent with previous accident investigation results as well as enterprise reality. This testifies that the model is effective and that the results can guide the allocation of safety investment of petrochemical port enterprises scientifically.