Measures for the Termination of the History of 'No Concrete Dam without Cracking'

机译：终止“没有裂缝的混凝土大坝”历史的措施

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Although a series of measures have been developed to prevent cracking in concrete dams since 1930, practically there is no dam without cracking. After systematic investigation, the author discovered that the basic reason is the neglect of superficial thermal insulation in the later age of concrete. It is possible to prevent cracking in concrete by permanent superficial thermal insulation in addition to comprehensive temperature control in the construction period. There are three concrete dams without cracking after completion in China. The cost of permanent superficial thermal insulation is rather low.

机译：尽管自1930年以来已采取了一系列措施来防止混凝土大坝开裂，但实际上没有不开裂的大坝。经过系统的调查，作者发现，其根本原因是在混凝土后期忽略了表面保温。除了在施工期间进行全面的温度控制外，还可以通过永久的表面绝热措施防止混凝土开裂。中国建成后有三座没有开裂的混凝土水坝。永久的表面绝热成本很低。

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来源
《New Progress on Roller Compacted Concrete Dams》|2007年|3-8|共6页
会议地点 Guiyang(CN)
作者
Hongzhi Xiao; rnJingwen Yan; rnXiaoyan Zhang;
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作者单位

Zhu Bofang@China Institute of Water Resources and Hydropower Research, Beijing 100038, China--;

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会议组织
原文格式 PDF
正文语种 eng
中图分类挡水坝;
关键词
concrete dam; crack; permanent superficial thermal insulation;

机译：混凝土坝；裂缝；永久性表面保温;

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Measures for the Termination of the History of 'No Concrete Dam without Cracking'

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