Study on the Dynamics Characteristics of Elastic Wave of Weathered Zone in Longmen Grottoes

Abstract:

Based on the test results, the wave velocity and the attenuation rule of elastic wave of weathered zone in Longmen Grottoes are studied. The wave velocity decreases with the increasing of the attenuation coefficient in a certain range. When wave velocity decreases to a certain value, there is not a relationship between wave velocity and attenuation coefficient. The attenuation coefficient thresholds of P-wave 0.01and S-wave 0.1 separate good rockmass quality from poor rockmass quality. The test results show that the elastic wave velocities of the surrounding rocks are generally high, which indicates that the rockmass skeleton is solid. But the rockmass anisotropy is obvious, which indicates that the structure planes are more developed. The results of the study are important for the protection of historical relics.

• Periodical: Applied Mechanics and Materials (Volumes 105-107)
• Pages: 1509-1512
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.105-107.1509
• Online since: September 2011
• Authors: Wu Xiu Ding, Hong Yi Wang
• Keywords: Attenuation Coefficient, Elastic Wave, Longmen Grottoes, Wave Velocity, Weathered Zone

References

[1] X.G. Wang, T. Peng, Y.Q. Guo and D.M. Wu: The Chinese Journal of Geological Hazard and Control, Vol. 17 (2006) No. 1, p.130. (In Chinese).

[2] B. Sun: Mechanism Analysis of Permeation Disease and Experiment Study on Impervious Material of Longmen Grottoes (Master's thesis, China University of Geosciences, China 2006).

[3] B.F. Zhang: Sciences of Conservation and Archaeology, Vol. 22 (2010) No. 4, p.77. (In Chinese).

[4] C.Y. Zhang: Acta Scientiarum Naturalium Universitatis Pekinensis, Vol. 39 (2003) No. 6, p.829. (In Chinese).

[5] G.L. Yang, Y. Fang, J.P. Chen and C.L. Ma: Sciences of Conservation and Archaeology, Vol. 18 (2006) No. 3, p.30. (In Chinese).

[6] B.T. Pan and J.L. Liu: Research on Prevention and Cure and Countermeasure of Environmental Diseases of Longmen Grottoes in Luoyang (China University of Geosciences Press, China 1992).

[7] J.L. Liu: Cultural Relics of Central China, (1982) No. 3, p.54. (In Chinese).

[8] Y. Fang, C.Q. Gu, S.J. Yan and W.L. Zhang, ect: Geoscience, Vol. 17 (2003) No. 4, p.480. (In Chinese).

[9] W.X. Ding, J.P. Chen, X.T. Feng, H. Zhou and S.M. Wang: Rock and Soil Mechanics, Vol. 25 (2004) No. 1, p.145. (In Chinese).

[10] W.X. Ding, L.P. Cai, J.P. Chen and S.M. Wang: Journal of Luoyang University, Vol. 18 (2003) No. 4, p.79. (In Chinese).

[11] C.L. Ma, Y. Fang, J.H. Li and G.L. Yang: Dunhuang Research, (2007) No. 5, p.36. (In Chinese).