土坝弱应力破坏引起的老化问题

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Abstract Inhomogeneous deformation and destress damage of the earthdam core will probably occur if its filling quality is lower than the standard of design. In this case the cracks may occur in the dam，and the resevoir water permeating the cracks may lead to hydraulic fracture. Usually，people pay no attention to such problems for its concealment. In fact，these problems become more and more serious accompanying with earthdam aging. Analysis is made on the reasons for destress damage. Mathematical calculations are performed and site survey methods are put forward.

Key words： destress failure area splitting grouting the minor principal stress earthdam aging

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/IS/2261