ISSN:
1570-1468
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Conclusions 1. For the examined thermophysical characteristics of the concrete and foundation and conditions of constructing the dam, the absence of insulation on the downstream face leads to the occurrence of considerable tensile stresses both in the outside and interior zones of the dam. In this case one should expect disturbance of the solidity in the outer zones of the dam even in the construction period both on the downstream and upstream faces, primarily opening of the block joints having a low tensile strength of the concrete, which is confirmed by on-site observations conducted during construction of the dam. 2. In the central part of the dam the tensile stresses in the construction period do not exceed the tensile strength of the concrete. 3. In the operating period the horizontal tensile stresses in the interior zones of the dam are close to the tensile strength of the concrete. Under these conditions special attention should be given to providing the specified tensile strength of the concrete to avoid the occurrence of vertical cracks in the middle of the dam. 4. In connection with the low tensile strength of the horizontal block joingts considerable vertical tensile stresses occurring in the interior zones of the upper part of the dam in the operating period can lelad to their opening.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01427179
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