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Chapter 3 Buckling of restrained pipe under external pressure (Authors, publisher, date not given in the pdf file. The most recent reference is dated 2005. However, the most recent reference in the previous citation, identified as Chapter 2, doubtless from the same volume, is dated 2008.)
ABSTRACT: The buckling of uniformly supported steel liner used in separated tunnel structure had been studied as a free pipe buckling and the corresponding theory solution were given. However, when the steel liner is installed with locally support in tunnel, the contact between tunnel lining and steel liner should be taken into account, as well as the restraining effects due to RC linings, because the critical pressure increases significantly for an elastic liner encased in rigid cavity when consider the restraining effect. In this chapter, the steel liner as restrained pipe, its buckling is investigated using experimental, numerical and analytical method, in terms of plain steel liner and stiffened liner. Meanwhile the corresponding theoretical solutions will be discussed, based on the existing single-lobe buckling theories.
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