基于小波理论的岩体质量声波多参数分级方法.PDF

81 q 1, 2 ( 1. , 361021; 2. , 361021) [ ] ; ; ; [ ] , , , , , , [ ] TU45 [ ] A [] 1001- 4926( 2009) 02- 0080- 06 TheMulti- ParameterUltrasonic Identification of RockMass Quality EvaluationM ethod Based onWavelet Theory YU Jin1, 2 ( 1. Institu te of GeotechnicalEng ineering,H uaqiao Un ivers ity, X iam en, Fuj ian 361021, China; 2. chool of CivilEngineering, H uaqiao University, X iam en, Fuj ian 361021, Ch ina) K ey words: roc m ass quality class ification; u ltrason ic velocity; spectrum analysis; wavelet theory bstract: Based on the classical identification m ethodw ith u ltrasonic velocity, w avelet transform ation and spectrum analys is are ap- p lied to analyze u ltrasonic testing signals and then dynam ical param eters in different frequency band are put forward. U sing cluster a- nalysis, correlative analysis and stepw ise regressive analysis, am ethod of mu lti- param eter ultrason ic identification for roc m ass is suggested based on w avelet theory. U sing comparative analysis, the reliab ility and accuracy of the new evaluation m ethod are mi - proved. [ 10] , , [ 1] , , , [ 2- 8] [ 1] 6 , Q RMR BQ , BQ [ 9] , , , BQ [ ] 2009- 04- 07 [ ] 2009- 05- 27 [] 福建省自然科学基金项目/ 大振幅应力波在含多组平行节理岩体中的传播 性研究0 ( 2009J05125); 华侨大学高层次人才科研 基金资助项目/ 节理岩体中弹性纵波传播规律的数值计算及实验研究0 ( 08BS414) [] 俞 缙( 1978- ), 男, 讲师, 博士研究生研究方向: 岩石动力学岩土工程