Seite - 1240 - in Book of Full Papers - Symposium Hydro Engineering

Fig. 5: The lateral displacements of the reinforced concrete pile P54 Fig. 6 shows the readings of the strain gages fixed on the reinforcement bars at side R of the pile P54 shaft. The strain gages were fixed at levels -1.80 m, -4.50 m, -7.80 m, and -10.80 m along the pile shaft. The bending moment, calculated based on the measured strains, reflects high concentration moments at the upper silty sand and the lower very soft clay lenses within the soft clay layer. These sand and clay deposits controlled the pile movements especially during the construction stage, which resulted in concentration of stresses. 4. CONCLUSIONS The readings of the piezometers embedded in the embankment proved the high efficiency of the secant-pile wall in controlling the seepage through the tested section of the canal embankment. The effect of the secant-pile wall was reflected after finishing the construction of half the wall in the tested section. The readings of piezometer (2), which is adjacent to the wall at the roadside, and 1240