Technology of Construction by a Clamshell Dredger

When a clamshell dredger is used to carry out over-depth and over-width dredging,accuracy control is always one of the difficulties.The paper,on the basis of dredging of foundation trenches,describes from many angles the technological processes,technical measures and accuracy control measures for over-depth and over-width dredging operations.The final re-sults of dredging showed that the accuracy of dredging was superior to the specified standards and the economic benefits were significant.