| 离心模型砂雨法制备技术研究与展望 |
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| 引用本文： | 方浩,段雪锋,王永志,王海,袁晓铭,王体强.离心模型砂雨法制备技术研究与展望[J].世界地震工程,2018,34(4):060-66. |
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| 作者姓名： | 方浩 段雪锋 王永志 王海 袁晓铭 王体强 |
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| 作者单位： | 中国地震局工程力学研究所 地震工程与工程振动重点实验室, 哈尔滨 150080 |
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| 摘 要： | 砂雨法是开展砂质土层和构筑物离心试验应用广泛的模型制备技术，以密实程度与均匀性为关键控制对象，直接关系试验结果的准确性和可靠性。针对砂雨装置、控制要素和均匀度测试等几个方面，概况总结了国内外离心模型砂雨法制备技术的研究进展与暴露的关键问题，归纳了现有砂雨装置的基本组成、操控特点和分类方法，阐述了稳态密实度范围及影响关键因素。综述模型空间均匀度的不同量测与评价方法，评述了各自优缺点与归一化评价标准。综合现状与不足，讨论了离心模型砂雨法制备技术的发展方向与趋势。
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| 关 键 词： | 离心模型试验 制备技术 砂雨法 相对密度 空间均匀度 |
Research and prospect of preparation technique for centrifugal pluviation model |
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| FANG Hao,DUAN Xuefeng,WANG Yongzhi,WANG Hai,YUAN Xiaoming,WANG Tiqiang.Research and prospect of preparation technique for centrifugal pluviation model[J].World Information On Earthquake Engineering,2018,34(4):060-66. |
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| Authors: | FANG Hao DUAN Xuefeng WANG Yongzhi WANG Hai YUAN Xiaoming WANG Tiqiang |
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| Institution: | Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China |
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| Abstract: | The pluviation method is a widely used model preparation technique for the centrifugal test of sandy soil layers and structures. The degree of compaction and uniformity are the key control objects and are directly related to the accuracy and reliability of the test results. Based on the pluviation device, control elements, uniformity test, and other aspects, the research progress and key problems of preparation technique of centrifugal pluviation model at home and abroad, and the structural composition, control characteristics and basic classification of existing pluviation devices were summarized, and the range of steady-state compactness and the key factors were expounded. The advantages and disadvantages and normalization evaluation criteria of different measurement and evaluation methods of spatial uniformity model were reviewed. Based on the current status and shortcomings, the development direction and trend of preparation technology of centrifugal pluviation model were discussed. |
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| Keywords: | centrifugal model test preparation technique pluviation relative density spatial uniformity |
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