China Safety Science Journal ›› 2017, Vol. 27 ›› Issue (4): 92-97.doi: 10.16265/j.cnki.issn1003-3033.2017.04.017

• Safety Social Engineering Work • Previous Articles     Next Articles

Application of quantitatively improved HAZOP method in ventilation safety during gas tunnel construction

LIU Hui, ZHANG Zhichao   

  1. School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun Jilin 130118, China
  • Received:2017-01-03 Revised:2017-03-05 Published:2020-11-22

Abstract: In order to strengthen the ventilation effect for construction ventilation system of gas tunnel, the quantitatively improved HAZOP was used in studying ventilation system of gas tunnel construction. The existing deviations were analyzed quantitatively by introducing the deviation. Models were built for calculating single parameter deviation degree, node deviation degree and deviation degree of different ventila stages of every work area, the deviations were divided into four levels of I, II, III and IV. The fourth stage of a certain gas tunnel construction ventilation was taken as the analysis object, which was divided in to five nodes, and the face node was taken as an example of the HAZOP analysis, 5 node deviation degrees were obtained respectively by calculation, then deviation degree and deviation level of this stage were obtained. The results show that the deviation level of this stage is Ⅱ, belonging to moderate deviation,and needing to take safety measures according to the current situation,and that the analysis result conforms with the actual situation in the work area.

Key words: gas tunnel construction, ventilation system, hazard and operability study(HAZOP), quantitative improvement, deviation degree, deviation level

CLC Number: