Analysis and Measurement for Deformation of Embankments Widening with Single Side on Soft Soil Foundation

Abstract:

When widening a road different settlements and pavement cracking along the joint between the old and new embankments often appear. The effects on old embankment which are caused by new embankment with additional load are analyzed with finite element method based on D-P model, through the comparative analysis of the field monitoring data information and result of finite lement numerical simulation.The results indicate that the construction of new embankment induces unacceptable differential settlements between the center and the shoulder of old embankment, cent gold embankment moves upper and lower slightly near the center line; old road shoulder has larger horizontal displacement outward pointing to lateral side of the road; new embankment near the slope angle has larger horizontal displacement pointing to medial side of the road, the position of maximum settlement appears in the center of embankment surface during widening, moves outside gradually, and shows certain regularity.

• Periodical: Advanced Materials Research (Volumes 850-851)
• Pages: 322-327
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.850-851.322
• Online since: December 2013
• Authors: Jing Huan Wang, Ke Hu, Qing Chen, Yong Wu
• Keywords: Additional Load, Differential Settlements, Finite Element Method (FEM), Horizontal Displacement, Widening

References

[1] Yang Hao. Design Thinking and Construction Control of Soft Soil Foundation in Reconstruction and Extension Construction of the Shen-Da Expressway[J] Northeastern Highway, 2002, 25(2): 11-14.

[2] Wang Xiaohua, Ma Chengzu. Soft soil roadbed designing of link line in tanggu port area of Jingjintang Highway[J]. East Chaina Highway, 1993(6): 11-15.

[3] Su Yang. Construction of Soft－Foundation Section of Guangfo (Guangzhou─ Foshan) Express Highway Expansion Project[J]. Port & Waterway Engineering, 2001(2): 51-58.

[4] Chen Haishan, Hu Yongshen. Soft Soil Foundation treatment in Guangfo (Guangzhou─Foshan) Express Highway Expansion Project[J]. Guangdong highway traffic, 1998(5): 47-50.

[5] Gui Yande, Xu Lixin. Expansion Project designing of Hang-Yong Expressway(Hong Ken to Gu Zhu)[J]. East China Highway, 2001(6): 3-6.

[6] H G B ALLERSMA, L RAVENSWAAY, E VOS Investigation of road widening on soft soil using a small centrifuge [J]. Transportation research record, 1994: 47-53.

[7] R B J BRINKGREVE, P A VERMEER Constitutive aspects of an embankment widening project [C]∥Proc. International Workshop: Advances in understanding and modeling the mechanical behavior of peat Rotterdam: Balkema, 1994: 143-158.

[8] A N G VAN MEURS, A VAN DEN BERG, et al. Embankment widening with the gap method [C]∥Geotechnical engineering for transportation infrastructure Rotterdam: Balkema, 1999: 1133-1138.

[9] VOS E, J F COUVREUR, M VERMAUT Comparison of numerical analysis with field data of a road widening project on peaty soil [C]∥Proc International Workshop: Advances in understanding and modeling the mechanical behavior of peat Rotterdam: Balkema, 1994: 267-274.

[10] ZHANNG Ding-wen, LIU Song-yu. Parameter Analysis of Influence of the Construction of New Embankment on the Old Embankment in the Widening of Expressway[J]. Journal of Highway and Transportation Research and Development, 2006, 23(7): 31-34.

[11] HIBBITT, KARLSSON, SORENSEN ABAQUS Analysis User's Manual (Ver6. 2) [CP/DK] HKS, (2001).