关键词: 柔性管线, 安全评价, 地铁施工, 简便方法

Abstract: With rapid developments of metro construction in China, the safety evaluation of pipelines near tunneling is one of the key technical problems urgent to solve. On the basis of understanding basic laws of ground movements, an empirical or semi-empirical method to evaluate the safeties of flexible pipelines is put forward; and it takes the deformation as the control index. Generally the details of pipelines are not necessary to know, and only a few parameters are involved; so the method is more easy to use in engineering; and it can be used to evaluate the latent damages of flexible pipelines rapidly. The method is particularly fit for the case of no sufficient data or especially sensitive pipelines, where the joints must be treated separately and the conservative estimations are needed.

Key words: flexible pipeline, safety evaluation, metro construction, simple method