Buried pipelines in sloping ground and potential buckling during operation

倾斜地面中的埋地管道和运行期间潜在的屈曲

• 批准号: 571709-2021
• 负责人: Hawlader, BipulBC
• 金额: $ 1.46万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=749215
• 关键词: Buried; pipelines; sloping; ground; potential

Oil and gas pipelines generally traverse over a large distance through various ground conditions, from relatively flat areas to sloping grounds such as crossing hills, mountain ridges and rivers. Ground deformation/slope failure and upheaval buckling during operation pose a major threat to the structural integrity, safety and operability of the pipelines. Canada has a network of approximately 115,000 km of underground energy transmission pipelines that operates every day to transport oil and natural gas. The current guidelines recommend using simplified approaches, which have some limitations. In the proposed project, numerical analysis and laboratory tests will be performed for a better understanding of these complex mechanisms to develop improved methods for assessing the response of pipelines in the sloping ground and that might experience buckling. Two PhD and one Master's candidates will be supported through this research grant. The outcomes of the research will be sought by stakeholders including engineering service companies, operators, oil and gas companies, regulatory agencies and academia to address constraints (e.g. technical, economical or logistical) and satisfy accepted risk and safety targets (e.g. societal, environmental).

石油和天然气管道通常要穿越较长的距离，穿过各种地面条件，从相对平坦的地区到倾斜的地面，如穿越丘陵、山脊和河流。管道运行过程中的地面变形/边坡破坏和隆起屈曲对管道的结构完整性、安全性和可操作性构成重大威胁。加拿大拥有大约11.5万公里的地下能源输送管道网络，这些管道每天都在运行，运输石油和天然气。目前的指南建议使用简化的方法，这有一些局限性。在拟议的项目中，将进行数值分析和实验室测试，以更好地了解这些复杂的机制，以开发改进的方法来评估倾斜地面上管道的响应，并可能经历屈曲。两名博士和一名硕士研究生将通过这项研究资助获得资助。包括工程服务公司、运营商、石油和天然气公司、监管机构和学术界在内的利益相关者将寻求研究结果，以解决制约因素（如技术、经济或后勤），并满足公认的风险和安全目标（如社会、环境）。