Lifecycle Risk Evaluation for Qiongzhou Strait Railway Tunnel

doi:10.3973/j.issn.2096-4498.2018.09.014

Tunnel Construction ›› 2018, Vol. 38 ›› Issue (9): 1513-1519.DOI: 10.3973/j.issn.2096-4498.2018.09.014

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Lifecycle Risk Evaluation for Qiongzhou Strait Railway Tunnel

WANG Han¹, HE Weiguo², YUAN Yong¹

(1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. China Railway Tunnel Survey and Design Institute Co., Ltd., Tianjin 300131, China)

Received:2017-08-18 Revised:2018-04-09 Online:2018-09-20 Published:2018-09-30

Abstract

Abstract:

In order to analyze the feasibility, rational route scheme and construction method of Qiongzhou Strait railway tunnel, the risk of preresearch design schemes of Qiongzhou Strait railway tunnel is identified and analyzed from the aspect of tunnel lifecycle construction. The risk evaluation basic data of construction condition stage, structural design stage, engineering construction stage and operation management stage of 3 schemes of shield methods for middle line and western line and immersed tube method for western line are collected by expert questionnaires; the fuzzy analytical hierarchy process (FAHP) is used to study the statistical results of expert questionnaires; and the fuzzy evaluation model and fuzzy evaluation matrix are established to calculate the risk evaluation results. The shield methods for middle line and western line are recommended according to the risk evaluation results and expert advices. Finally, the suggestions and countermeasures for controlling and reducing major risks of shield method are proposed in terms of geological survey, structural design optimization and engineering construction measurements based on engineering conditions of Qiongzhou Strait railway tunnel.

Key words: Qiongzhou Strait, seacrossing railway tunnel, life cycle, risk evaluation, fuzzy analytic hierarchy process

CLC Number:

U 455.46

WANG Han, HE Weiguo, YUAN Yong. Lifecycle Risk Evaluation for Qiongzhou Strait Railway Tunnel[J]. Tunnel Construction, 2018, 38(9): 1513-1519.

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Lifecycle Risk Evaluation for Qiongzhou Strait Railway Tunnel

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