›› 2008, Vol. 29 ›› Issue (6): 1613-1617.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on regression analysis method and programming of critical stable depth of burial of hidden holes in loess under roadbed

DENG Ya-hong1-3, PENG Jian-bing1,2, FAN Wen1,2, XIA Tang-dai3   

  1. 1. Key Laboratory of Western China’s Mineral Resources and Geological Engineering, Ministry of Education, Xi'an 710054, China 2. Open Research Laboratory of Geotechnical Engineering, Ministry of Land and Resources, Xi'an 710054, China 3.Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2006-10-09 Online:2008-06-10 Published:2013-07-15

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Abstract: First, according to the basic equation of dynamics, using FEM and NEWMARK implicit algorithm, an elastoplastic numerical analysis is made to analyze the critical burial depth of hidden holes in loess under the roadbed subjected to the dynamic load (FWD). In order to reduce the effect of wave reflecting on artificial boundary, transmitting boundary and semi-infinite elements are respectively used to treat the lateral and underside boundary. Based on the numerical analysis, a regression analysis method using finite numerical results of critical depth is developed; and the calculation program "LDMC" is compiled. Finally, a validity check of the program is made;and it is shown that the result has relatively good precision and completely satisfies the needs of projects.

Key words: highway, hidden holes in loess, critical depth, regression analysis, FEM, transmitting boundary, FWD load

CLC Number: 

  • P642
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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