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一、引起设计变更的原因在铁路工程的建设过程中,引起设计变更的原因很多,其中有些是可预见的,有些是不可预见的,有些是可避免的,有些是不可避免的,概括起来可归纳为三个方面: 1.客观因素引起的设计变更铁路工程由于地质复杂、地形地貌变化大,虽然能够通过一定的技术手段探知复杂的地质结构,选择较为稳定的安全地带。然而受现有勘察技术的限制,我们对大自然的了解还不能做到百分之百的完全和准确,如地下裂隙
I. Causes of Design Changes There are many reasons that lead to design changes during the construction of railway projects. Some of them are foreseeable, some are unpredictable, others are avoidable and some are inevitable. In summary, Summarized in three aspects: 1. Design changes caused by objective factors Railway engineering due to complex geological conditions, large changes in topography, although the complex geological structure can be detected through certain technical means, select a more stable safety zone. However, due to the limitations of the existing survey technology, our understanding of nature can not yet be completely and accurately one hundred percent, such as underground cracks