| 张辽远*,陈浩,姚俊.人造柱状冰特性的研究[J].实验力学,2011,26(1):73~78 |
| 人造柱状冰特性的研究 |
| Investigation on Properties of Artificial Cylindrical Ice Block |
| 投稿时间：2010-05-05 修订日期：2010-10-11 |
| DOI： |
| 中文关键词: 强度极限 应变 加载速度 温度 人造冰 压力试验机 |
| 英文关键词:intensity limit strain loading speed temperature artificial ice pressure testing machine |
| 基金项目:国家科技部国际合作项目基金(2008DFR70460)资助 |
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| 中文摘要: |
| 由于地形的变化,冰特性的研究对研究冰川、河、湖、海冰的动力过程以及破冰均有重要意义。本文对人造柱状冰的特性进行研究和分析,给出了人造柱状冰的制备过程和利用压力试验机对人造冰特性进行的测定,主要包括冰冻模具的制作、冰试样的制备和加工以及对于纯水冰柱和含沙冰柱的特性研究。在冰柱的冰冻温度为-10℃、-20℃、-30℃和-40℃的条件下,利用压力试验机以恒定的加载速度1mm/min 、3mm/min、5mm/min、7mm/min和10mm/min对冰柱加载,得出冰冻温度和加载速度对冰柱强度极限的影响。 |
| 英文摘要: |
| Because of terrain changes,the ice in groundwork under building and floating ice on the Yellow River etc often subjected to stress change. Therefore, investigation on ice characteristics has significance for ice dynamic processes and ice-breaking on ice glaciers, rivers, lakes and sea. Characteristics of artificial cylindrical ice block were analyzed. Preparation process of artificial cylindrical ice block and its characteristics determination by using pressure testing machine are presented in this paper, including the preparation of frozen mold, the preparation and processing of ice block samples and the investigation on its characteristics of both the pure cylindrical ice block and the cylindrical ice mixed with sand. The loading mode is as follows: at freezing temperatures -10℃, -20℃, -30℃ and -40℃, respectively, constant loading speed 1mm/min,3mm/min,5mm/min,7mm/min and 10 mm/min are loaded on ice block by pressure testing machine, it can conclude the influence of freezing temperature and loading speed on icicle. |
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