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A Dynamic Risk Assessment Method for Deep-Buried Tunnels Based on a Bayesian Network
المؤلفون المشاركون
Su, Jie
Guo, Siyao
Du, Mingqing
Zhang, Sulei
Zhang, Peng
Wang, Yan
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-05
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
In view of the shortcomings in the risk assessment of deep-buried tunnels, a dynamic risk assessment method based on a Bayesian network is proposed.
According to case statistics, a total of 12 specific risk rating factors are obtained and divided into three types: objective factors, subjective factors, and monitoring factors.
The grading criteria of the risk rating factors are determined, and a dynamic risk rating system is established.
A Bayesian network based on this system is constructed by expert knowledge and historical data.
The nodes in the Bayesian network are in one-to-one correspondence with the three types of influencing factors, and the probability distribution is determined.
Posterior probabilistic and sensitivity analyses are carried out, and the results show that the main influencing factors obtained by the two methods are basically the same.
The constructed dynamic risk assessment model is most affected by the objective factor rating and monitoring factor rating, followed by the subjective factor rating.
The dynamic risk rating is mainly affected by the surrounding rock level among the objective factors, construction management among the subjective factors, and arch crown convergence and side wall displacement among the monitoring factors.
The dynamic risk assessment method based on the Bayesian network is applied to the No.
3 inclined shaft of the Humaling tunnel.
According to the adjustment of the monitoring data and geological conditions, the dynamic risk rating probability of level I greatly decreased from 81.7% to 33.8%, the probability of level II significantly increased from 12.3% to 34.0%, and the probability of level III increased from 5.95% to 32.2%, which indicates that the risk level has risen sharply.
The results show that this method can effectively predict the risk level during tunnel construction.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Yan& Su, Jie& Zhang, Sulei& Guo, Siyao& Zhang, Peng& Du, Mingqing. 2020. A Dynamic Risk Assessment Method for Deep-Buried Tunnels Based on a Bayesian Network. Geofluids،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1165912
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Yan…[et al.]. A Dynamic Risk Assessment Method for Deep-Buried Tunnels Based on a Bayesian Network. Geofluids No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1165912
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Yan& Su, Jie& Zhang, Sulei& Guo, Siyao& Zhang, Peng& Du, Mingqing. A Dynamic Risk Assessment Method for Deep-Buried Tunnels Based on a Bayesian Network. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1165912
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1165912
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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