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| STABILITY DETECTION OF RAISING-SPEED SUBGRADE BY USING INSTANTANEOUS RAYLEIGH WAVE METHOD |
| HE Zhen-qi, LI Hai, GUO You-jing |
| China Railway Engineering General Corporation |
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Abstract The instantaneous Rayleigh wave method is a new and developing geotechnical in-situ test method, in which the quality of subgrade may be detected by utilizing its frequency scatter specialty and propagating speed and their relationship with the physics-mechanics properties of the subgrade soil. The principle, method and evaluation standards for detecting raising-speed subgrade by using the instantaneous Rayleigh wave method are introduced briefly in this paper. A practical engineering example is introduced briefly also.
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Received: 22 June 2001
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2001, Vol. 18 
