摘要
由于横波速度与岩土力学参数密切相关,因而是工程地质勘察中的关键参数。基于前人的思想,采用等厚薄层权重自适应迭代阻尼最小二乘法自动反演横波速度,提高横波速度的计算精度,进而映射二维横波速度剖面。用上述方法对某高速公路振冲压碾效果进行了无损检测试验,其结果与钻探和开挖验证一致。
In exploration of engineering geology, shearwave velocity is one of the key parameters, which is tightly related to parameters of geotechnique dynamics. The paper presents a inversion method of shearware velocity by using adaptively iterative damping least square method, which divides the subsurface into thin layers with the weighting matrix determined by equivalent thickness. The method can improve inversion accuracy of shear wave velocity and construct the 2D shear wave velocity section. The trial results of nondestructive inspection by the method for the compacting effect of some highway show the consistence with those of drilling and excavetion.
出处
《物探化探计算技术》
CAS
CSCD
2003年第2期105-109,共5页
Computing Techniques For Geophysical and Geochemical Exploration
基金
九.五"国家重点科技攻关项目(96-221-01-02-05)
长江水利委员会综合勘测局科技发展基金项目(KY2000-4)
