RESEARCH ON FACE SLAB DRY CONTRACTION STRESS OF ROCK-FILL DAM WITH CONCRETE FACE SLABS IN ITS CONSTRUCTION PERIOD

摘要

In combining with Gongboxia concrete face rock-fill dam and in considering each factor affecting humidity and dry contraction stress, the face slab construction process is, in real time, simulated in terms of the fact that whether there are two kinds of operational conditions (states) of surface maintenance and repair or not in the face slab concrete placement. Also, the finite element simulation analysis is made of the complete process of humidity field and dry contraction stress of face slabs whereby obtaining the face slab humidity fields and dry contraction stress variations and distribution pattern during the construction period.