| 用实验方法研究水泥石动态断裂韧性 |
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| 引用本文： | 王通,王强,于长滨,王祥林.用实验方法研究水泥石动态断裂韧性[J].地震工程与工程振动,2006,26(4):250-254. |
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| 作者姓名： | 王通 王强 于长滨 王祥林 |
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| 作者单位： | 黑龙江省林业设计研究院,建筑环境艺术设计中心,黑龙江,哈尔滨,150080;黑龙江大学,物理科学与技术学院,黑龙江,哈尔滨,150080;哈尔滨工业大学,土木工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 黑龙江省自然科学基金项目(A9856) |
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| 摘 要： | 为了减轻射流侵彻对水泥环的破坏,改善界面的密封胶结性能,必须对现有的水泥石进行改性研究。根据超混复合材料的原理,我们在水泥石的配比中增加几种填料,通过填料影响改变水泥石的动态断裂韧性。将水泥石制成短棒试件,用分段式Hopk inson压杆对几种改性配方的水泥石的动态断裂韧性进行实验测定,给出了部分实验结果。采用反射式动态焦散线方法,对六种水泥石材料的动态断裂韧性进行了实验研究,给出了实验结果。并比较了短棒实验和动态焦散线法测量动态断裂韧性的结果,两者吻合较好。研究表明:纤维增强是提高水泥石抗冲击性能的有效途径。
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| 关 键 词： | 水泥石 短棒试件 断裂韧性 |
| 文章编号： | 1000-1301（2006）04-0250-05 |
| 收稿时间： | 2005-08-14 |
| 修稿时间： | 2005-08-142005-12-11 |
Study on dynamic fracture toughness of cement rock by experimental method |
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| Wang Tong,Wang Qiang,Yu Changbin,Wang Xianglin.Study on dynamic fracture toughness of cement rock by experimental method[J].Earthquake Engineering and Engineering Vibration,2006,26(4):250-254. |
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| Authors: | Wang Tong Wang Qiang Yu Changbin Wang Xianglin |
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| Institution: | 1. A E A Design Center, The Forest Design and Research Institute of Heilongjiang Province, Harbin 150080, China;2. College of Physical Science and Technology, Heilongjiang University, Harbin 150080, China;3. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | In order to reduce the destroying of the cumulative flow erosion of cement ring and improve the sealed cementing property at the interface,it is necessary to research the modification of the cement rock available.According to the principle of supercomposite materials,we add various fillers to the ingredients of cement rock.Dynamic fracture toughness of the cement rock is changed by fillers and the cement rock is made into a short rod specimen.The experiment is carried out to test the dynamic fracture toughness of the cement rock with different ingredients by using the split Hopkinson pressure bar and some experimental results are given.The dynamic fracture toughness of six modified cement rock specimens is studied by reflective dynamic caustic.The results of short rod experiment of dynamic fracture toughness correspond very well to the data of dynamic caustics.The research indicates that the fiber reinforcement is an effective way to improve the impact resistance of cement rock. |
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| Keywords: | cement rock short rod specimen fracture toughness |
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