Guided wave inspection of buried structures

这项提案寻求为利用导波检查埋藏结构的三年研究方案提供资金。利用导波检测管道、铁路线、平板和管道等结构的科学基础已经成功地开发了大约20年，特别是在英国的研究人员的领导下。这一新的认识已被工业界采纳，到目前为止，主要集中在管道的检测上，并取得了巨大的成功。然而，关键的是，使科学研究成为可能的是裸露的结构，但埋在地下的结构中的导波是完全不同的。周围的材料通常包括吸声保护层，减少了实际检查的范围，并经常产生阻碍解释的不必要的信号分量。这些限制在工业中变得非常明显，在工业中，应用导波方法检测管道的埋藏部分具有巨大的吸引力，否则这些部分是无法到达的。建议的研究将解决这些问题，旨在为在最大距离上可靠地检测埋地管道和涂层管道提供科学依据。该成果还将对任何其他类型的埋置或涂层结构的导波检查产生普遍好处。该提案正在英国无损评估研究中心(RCNDE)内提交给定向研究计划，EPSRC专门为工业驱动的研究提供资金。

This proposal seeks funding for a three year research programme into the inspection of buried structures using guided waves. The scientific basis for the use of guided waves to inspect structures such as pipelines, railway lines, plates and pipes has been developed successfully now for about 2 decades, led in particular by researchers in the UK. The new understanding has been taken up in industry, so far concentrating with great success on the inspection of pipelines. However, critically, the enabling scientific research was done for exposed structures, but guided waves in buried structures are radically different. The surrounding materials, which typically include sound-absorbing protective coatings, reduce the practical range of inspection and often give rise to unwanted components of signals which hinder interpretation. These limitations are becoming very apparent in industry where there is a huge attraction to apply the guided wave method to inspect buried parts of pipelines which are otherwise inaccessible. The proposed research will address these problems, aiming to provide the scientific basis for the reliable inspection of buried and coated pipes over maximum distances. The outcomes will have generic benefit also for the guided wave inspection of any other kinds of buried or coated structures.The proposal is being submitted within the UK Research Centre in Non Destructive Evaluation (RCNDE) to the targeted research programme, the funding for which is earmarked by EPSRC for industrially driven research.