Assessment of safety status of shield tunnelling using operational parameters with enhanced SPA
Assessment of safety status of shield tunnelling using operational parameters with enhanced SPA
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DOI：
10.1016/j.tust.2022.104428
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发表时间：
2022-02-18
影响因子：
6.9
通讯作者：
Yin, Zhen-Yu
中科院分区：
文献类型：
--
作者：
Lyu, Hai-Min;Shen, Shui-Long;Yin, Zhen-Yu
本文研究了盾构掘进过程中的安全状况。提出了一种基于区间模糊数的集对分析（SPA）方法的改进方法。改进的集对分析克服了现有集对分析中关于风险因素的正或负特征的判断过程的局限性。通过现场施工中与刀具更换相关的高风险路段对评价结果进行了验证。从经加强的特别安排中得出的风险级别III和IV的百分比高于从现有特别安排中得出的百分比。比较表明，增强的SPA是更有效地识别更高的风险比现有的SPA方法。同时，首次将集对分析方法应用于盾构参数的施工风险评估，在实际应用中，改进集对分析方法的效果优于现有集对分析方法。
This study investigates the safety status for a shield machine during tunnelling. An enhancement of the existing set pair analysis (SPA) method incorporating with interval-based fuzzy numbers is proposed to assess the safety status. The enhanced SPA overcomes the limitation of a judgment procedure concerning the positive or negative characteristic of a risk factor in existing SPA. The assessed results were validated by the high-risk sections related to cutter exchange in field construction. The percentage of the risk levels III and IV obtained from the enhanced SPA is greater than that from the existing SPA. The comparison indicates that the enhanced SPA is more effective to identify higher risks than the existing SPA methods. Meanwhile, the SPA methods are firstly used to assess the construction risk using shield parameters, and the enhanced SPA is better than the existing SPA methods during application.