多年冻土区涵洞损伤评估与概率建模——以青藏公路为例

IF 3.8 2区工程技术 Q1 ENGINEERING, CIVIL

Cold Regions Science and Technology Pub Date : 2025-08-05 DOI:10.1016/j.coldregions.2025.104622

Shunshun Qi , Guoyu Li , Dun Chen , Qingsong Du , Anshuang Su , Xu Wang , Liyun Tang , Yan Zhang , Miao Wang

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引用次数: 0

摘要

青藏公路多年冻土区涵洞破坏是公路运营面临的重大挑战。本研究通过对85个涵洞的调查，综合了探地雷达（GPR）和温度探头数据，检查了QTH K2890-K3019段的涵洞损坏情况。损坏分为三种类型：涵洞体、开口和周围填充物，严重程度分为轻微、中度和严重。在板涵和管涵之间观察到不同的破坏模式。开发了基于逻辑回归的概率模型，准确率为76%，用于预测板涵洞的沉降和变形，是多年冻土区涵洞维修的宝贵工具。在此基础上，探讨了涵洞塌陷的机理。此外，该研究还强调了及时修理的重要性，特别是对轻微的损坏，以防止进一步恶化。这些研究结果可为青藏高原的改扩建提供参考，并对其他多年冻土区涵洞的设计和维护提供指导。

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Culvert damage assessment and probability modeling in permafrost regions: A case study of the Qinghai-Tibet highway

Damage to culverts in the permafrost regions of the Qinghai-Tibet Highway (QTH) presents a significant challenge to highway operations. This study examines culvert damage along the K2890-K3019 section of the QTH through a survey of 85 culverts, integrating ground-penetrating radar (GPR) and temperature probe data. Damage was categorized into three types: culvert body, openings, and surrounding fill, with severity levels classified as slight, moderate, and severe. Distinct damage patterns were observed between slab and pipe culverts. A logistic regression–based probability model with 76 % accuracy was developed to predict settlement and deformation in slab culverts, serving as a valuable tool for culvert maintenance in permafrost regions. Based on the aforementioned research, the pathogenesis of culvert distress was delved into. In addition, the study emphasizes the importance of timely repairs, particularly for minor damage, to prevent further deterioration. These findings can inform the reconstruction and expansion of the QTH and guide the design and maintenance of culverts in other permafrost regions.

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来源期刊

Cold Regions Science and Technology 工程技术-地球科学综合

CiteScore

7.40

自引率

12.20%

发文量

209

审稿时长

4.9 months

期刊介绍： Cold Regions Science and Technology is an international journal dealing with the science and technical problems of cold environments in both the polar regions and more temperate locations. It includes fundamental aspects of cryospheric sciences which have applications for cold regions problems as well as engineering topics which relate to the cryosphere. Emphasis is given to applied science with broad coverage of the physical and mechanical aspects of ice (including glaciers and sea ice), snow and snow avalanches, ice-water systems, ice-bonded soils and permafrost. Relevant aspects of Earth science, materials science, offshore and river ice engineering are also of primary interest. These include icing of ships and structures as well as trafficability in cold environments. Technological advances for cold regions in research, development, and engineering practice are relevant to the journal. Theoretical papers must include a detailed discussion of the potential application of the theory to address cold regions problems. The journal serves a wide range of specialists, providing a medium for interdisciplinary communication and a convenient source of reference.