›› 2005, Vol. 26 ›› Issue (5): 833-836.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Solution of one-dimensional consolidation for double-layered ground by Laplace transform

WANG Xin-hui1, MIAO Lin-chang2, GAO Jian-kang3, ZHAO Min4   

  1. 1. Transportation Branch of Architectural Design & Research Institute, Southeast University, Nanjing 210096, China; 2. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China; 3. Shenzhen Gongkan Geotechnical Engineering Co., Ltd., Shenzhen 518026, China; 4. Expressway Construction Headquarters of Jiangsu Province, Nanjing 210004, China
  • Received:2004-02-05 Online:2005-05-10 Published:2013-12-17

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Abstract: Lianyungang marine soft clay is muck and mucky soil. When the expressway was built in the district, the soft clay foundation was often treated by cement-soil piles. This marine soft clay is of high compression, lower drainage consolidation and poor stability for its roadbed. During engineering construction, the phenomena, as larger settlement deformation, crack and slide, often took place on the embankment. Based on practical project for Jiangsu marine soft clay, the composite ground of cement-soil piles is simplified into the double-layered ground. The one-dimensional consolidation of the double-layered ground is solved by means of Laplace transform for two-step loading. To get over the difficulty of solving the inversion of Laplace transform, Stehfest numerical transform is applied here. The results of calculating settlements of the double-layer consolidation theory are in agreement with the measuring settlements.

Key words: Jiangsu marine soft clay, double-layered ground, Laplace transform, Stehfest algorithm, settlement

CLC Number: 

  • TU 472
  • 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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