ABSTRACT
The paper is related with the stability control of embankments built on very soft clays in Rio de Janeiro, Brazil, and consists of three parts. The first part presents data of an embankment recently built and monitored by means of horizontal and vertical displacements. Quite large horizontal displacements measured in some inclinometers and heave measured in some settlement plates were associated with activities such as pile driving and jet grouting nearby these instruments. The second part presents numerical predictions of horizontal and vertical displacements carried out by means of finite element calculations using the Cam-clay model. The third part presents a new method of stability control based on distortion parameters of the lateral movements. Considering also the possibility of instability by undrained creep, lateral displacements versus time curve is plotted to monitor the trend of instability.
