Comparison of the Effect of Soil Treatment Methods Used in Highway Widening Projects

Min Zhao; Wei Ping Cao; Qi Chao Shi

doi:10.4028/www.scientific.net/AMR.663.3

Paper Titles

Preface and Committee

Comparison of the Effect of Soil Treatment Methods Used in Highway Widening Projects
p.3

Research on Education of Urban Planning Science Based on Constructing Scientific Issue
p.8

Coordination Countermeasures of Overall Urban Planning and Land Utilization Planning
p.14

Fire Risk Assessment Procedure of Underground Commercial Street Based on Infectious Disease Model
p.17

Verification and Analysis of Conversion Factor for Pavement Damage Ratio Based on Bayesian Method
p.21

Simulation Analysis of Scour Impacts on the Dynamic Properties of a Bridge Structure
p.27

Vibration Table Test and Computer Simulation Analysis of Reinforced Concrete Eccentric Frame - Shear Wall Structures
p.31

Exploratory Study on the Development of Combination of Hotel and Apartment
p.37

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 663Comparison of the Effect of Soil Treatment Methods...

Comparison of the Effect of Soil Treatment Methods Used in Highway Widening Projects

Abstract:

The rapid development of China’s economics makes it urgent to widen the existing highways especially those located in the south-eastern coastal areas over thick soft soils. Adding a new embankment adjacent to the existing highway embankment is a cost effective choice compared with the traditional methods to build another new one and can reduce the heavy traffic pressure. However, it may also cause some engineering problems including the excessive settlements settlements, road cracks, excessive tensile stresses on the pavement even local or global instability of embankments. So some proper measures should be taken to solve the problems caused by widening is of great importance in engineering practice. A numerical analysis was performed to investigate the effect of different kinds of soft soil treatments including rigid piles, stone columns and prefabricated vertical drains (PVDs) usually used in highway widening projects located in the thick soft soils. It was found that the rigid piles can effectively reduce the additional settlements of the existing embankment induced by widening as well as the settlements of the widened embankment. While the stone columns and PVDs play little role in controlling the additional settlements caused by widening.