| 不同检测方法对混凝土波速的影响研究 |
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| 引用本文： | 沙玲,杜时贵,陈龙珠.不同检测方法对混凝土波速的影响研究[J].工程地质学报(英文版),2007,15(1):124-128. |
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| 作者姓名： | 沙玲 杜时贵 陈龙珠 |
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| 作者单位： | 1.浙江建设职业技术学院,杭州311231; |
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| 摘 要： | 为建立超声波法和低应变反射波法检测所得混凝土基桩波速的相互转换关系,本文给出了标准线性固体模型下粘弹性介质的三维和一维纵波速度之比及其实用简化公式,并且通过实验得出,混凝土构件的超声波速与1.054倍低应变动测波速之比处于1.03~1.12,具体数值会随着混凝土龄期、弹性模量和强度等级的增加而有所减小。
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| 关 键 词： | 混凝土 粘弹性 波速 超声波法 低应变反射波法 |
| 文章编号： | 1004-9665/2007/15（01）-0124-05 |
| 收稿时间： | 2006-04-13 |
| 修稿时间： | 2006-05-17 |
RATIO OF CONCRETE WAVE VELOCITIES MEASURED WITH TWO TEST METHODS |
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| SHA Ling,DU Shigui,CHEN Longzhu.RATIO OF CONCRETE WAVE VELOCITIES MEASURED WITH TWO TEST METHODS[J].Journal of Engineering Geology,2007,15(1):124-128. |
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| Authors: | SHA Ling DU Shigui CHEN Longzhu |
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| Institution: | 1.Zhejiang College of Construction, Hangzhou 311231;2.Inst.of Eng.Safety and Disaster Prevention, Shanghai Jiaotong University, Shanghai200030 |
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| Abstract: | This paper is to establish a relationship between wave velocities of concrete pile shaft measured with the ultrasonic wave method and the low-strain reflected wave method.It proposes a simplified formula for the ratio of wave velocity in infinite medium to that in one dimensional bar The viscoelastic theory based on standard linear solid model is adopted in the formulation of the formula.Experimental results show that the ratio of the ultrasonic wave velocity to the 1.054 timed low-strain reflected wave velocity ranges from 1.03 to 1.12.The ratio decreases with increasing in the age,the Young's modulus and the strength of concrete. |
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| Keywords: | Concrete Viscoelasticity Wave velocity Ultrasonic wave method Low-strain reflected wave method |
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