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采用高压固结试验,研究珊瑚礁沉积碎屑物试样在固结、回弹过程中的变形特性以及在不同加载方式、含水条件下的颗粒破碎情况,分析含砂量对变形的影响以及不同试验条件下的颗粒破碎规律。研究结果表明,不同的含砂量使砂、砾在试样固结时起到的作用不同,导致试样变形规律存在差异;加载方式、含水条件等对颗粒破碎影响显著,并在颗粒破碎结果分析中发现,0.25mm是颗粒破碎时相对稳定的粒径,是研究钙质砂颗粒破碎的一个重要粒径界限,其结果对于将钙质碎屑物作为稳定的填筑材料、提高珊瑚礁地基稳定性等具有实用价值。
Using high-pressure consolidation test, the deformation characteristics of coral reef sediment samples during consolidation and rebound, as well as the particle breakage under different loading conditions and water-containing conditions were studied. The effects of sand content on deformation and different tests Under the conditions of particle crushing law. The results show that different sand contents make sand and gravel play different roles in sample consolidation, which leads to different deformation rules of samples. Loading methods and water conditions have significant effects on particle breakage. It is found in the analysis that 0.25 mm is a relatively stable particle size when the particles are broken and is an important particle size limit for the study of calcareous particles. As a result, calcium stabilized clays are used as a stable filling material to improve the stability of the coral reef base Sexual and other practical value.