| 土体结构与含水量对弹性波传播特性的影响 |
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| 引用本文： | 康硕,洪溢都,张建辉,刘茹,饶昱贝.土体结构与含水量对弹性波传播特性的影响[J].科学技术与工程,2022,22(3):945-952. |
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| 作者姓名： | 康硕 洪溢都 张建辉 刘茹 饶昱贝 |
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| 作者单位： | 河北大学建筑工程学院;福州大学紫金矿业学院;中国科学院海西研究院泉州装备制造研究所 |
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| 基金项目： | 国家自然科学基金青年(51904285)；国家自然科学基金面上(51809253)；泉州市科技计划项目(2019C114),国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 基于弹性波具有表征土体结构的特性,通过试验探究不同密度和含水量组合条件下的土体弹性波速度变化规律.结果表明:波速随着土体密度的增大缓慢增大,弹性波发射端土体越致密则距离波源最近的接收器测得的弹性波速度越高;弹性波是能量波的一种,受其传播距离以及土颗粒的阻碍会逐渐衰减;波速随含水量的增大而缓慢减小,土体从初始状态达到饱和...
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| 关 键 词： | 土体结构 密度 含水量 弹性波速度 |
| 收稿时间： | 2021/4/12 0:00:00 |
| 修稿时间： | 2022/1/6 0:00:00 |
Effect of soil structure and water content on elastic wave propagation characteristics |
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| Kang Shuo,Hong Yidu,Zhang Jianhui,Liu Ru,Rao Yubei.Effect of soil structure and water content on elastic wave propagation characteristics[J].Science Technology and Engineering,2022,22(3):945-952. |
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| Authors: | Kang Shuo Hong Yidu Zhang Jianhui Liu Ru Rao Yubei |
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| Institution: | College of Civil Engineering and Architecture,Hebei University;Quanzhou Institute of Equipment Manufacturing Haixi Institute,Chinese Academy of Sciences |
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| Abstract: | The elastomer wave velocity change law of soil elastic wave under different density and moisture content combination conditions is studied by model box test. As a result, the wave velocity increases slowly with the increase of soil density. The soil denser at elastic wave transmitting end, the faster velocity measured by the receiver closest to emitter. Elastic wave is an energy wave, which will decay gradually due to the obstruction of its propagation distance and soil particles. The wave velocity decreases slowly with the increase of water content, and it from the initial state to saturation is reduced by 10%~30%. The variation mechanism of elastic wave velocity caused by soil density and water content is explained. This paper is expected to provide a reference for the study of landslide early warning and forecasting methods based on elastic wave. |
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| Keywords: | soil density water content elastic wave velocity |
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