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本文讨论了土石坝由变形而产生裂缝的类型和成因。根据对国内外已建坝的裂缝调查资料和变形观测资料的分析,总结出一些规律。用非线性弹性增量理论解释了变形和应力的关系并说明验算裂缝的方法。从而确认防止裂缝的关键是减小变形并使变形协调。提高土石坝的压实质量是达到上述要求的主要措施。最后,就压实标准和压实方法提出建议。
This paper discusses the types and causes of cracks caused by deformation of earth-rock dams. According to the analysis of the survey data and the deformation observation data of dam built at home and abroad, some laws are summarized. The nonlinear elastic increment theory is used to explain the relationship between deformation and stress and to explain the method of checking cracks. The key to confirming the prevention of cracks is to reduce the deformation and to coordinate the deformation. To improve the compaction quality of earth-rock dam is to achieve the above requirements of the main measures. Finally, make recommendations on compaction criteria and compaction methods.