Study on wave propagation characteristics of rock bolt grouted structure
Study on wave propagation characteristics of rock bolt grouted structure
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DOI：
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发表时间：
2007
影响因子：
1.5
通讯作者：
Shi-Ping Zhang;Changsuo Zhang;C. Wang;Steve Zou
中科院分区：
文献类型：
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作者：
Shi-Ping Zhang;Changsuo Zhang;C. Wang;Steve Zou
采用数值模拟和实验测试相结合的方法，研究了锚固混凝土固化过程中锚固岩石中的P波传播特性和界面波的形成过程，结果表明，锚固岩石中的P波传播特性会随着混凝土的固化而发生变化，锚固岩石中的P波对锚固材料的力学特性非常敏感，随着混凝土强度的增加，界面波逐渐消失，当混凝土强度增大时，界面波开始形成并占主导地位;界面波的传播速度与锚固材料有关，可用于检测锚杆的锚固质量和锚固长度。
Numerical simulation and experimental testing are used to research the wave propagation characteristics and the forming procedure of interfacial wave in grouted rock bolt during embedded concrete curing.Both show the wave propagation characteristics will change with concrete curing.The P-wave in the grouted rock bolt is very sensitive to mechanical characteristics of embedded material,and with the increasing of concrete strength it will disappear.When the strength of concrete get harder interfacial wave will form and dominate;the velocity of interfacial wave is related to embedded material so it can be used to measure grouted quality of rock bolt as well as grouted length.