Abstract Great subsidence and lateral displacement take place in the embankment of Ningbo—TaizhouWenzhou expressway during construction；and embankment presents some initial signs of landslide. In order to improve the stability of embankment against sliding in the section，the anti-sliding piles with prestressed anchor cable which combines some bored pile with prestressed anchor cable are set to control the subsidence and lateral displacement of embankment. At the same time，the monitoring of displacement and stability are carried out. All the observation data are acquired through monitoring the stress and displacement of anti-sliding pile with prestressed anchor cable，in turn this result can control and guide the construction of embankment. Combining actual monitoring data analysis of this project，the reinforcement mechanism and effect of the method to reinforce the embankment using anti-sliding pile with prestressed anchor cable are evaluated；and several qissues and advices for this measurement are presented，which can provide references to similar engineering.
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Received: 06 September 2007
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