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本报告的題目“用临时温度縫和永久温度縫进行大体积混凝上坝的分块”并不是偶然的。在了解北京設計院、郑州設計院、汉口設計院、上海設計院及其它設計单位制定的高坝設計时,曾向我們提出了許多关于混凝土坝形成温度裂縫的問題。与水电站施工单位有联系的一些中国科学研究单位也很注意这个問題,并且正在研究防止温度裂縫的措施。大体积混凝土坝在施工期間的合理分縫(分块),是防止建筑物产生有害的、有时甚至是危險的温度裂縫的有效措施之一。
It is not by chance that the title of this report, “Closing bulk concrete upper dam with temporary temperature stitches and permanent temperature stitches.” When we came to understand the design of high dams set by Beijing Design Institute, Zhengzhou Design Institute, Hankou Design Institute, Shanghai Design Institute and other design institutes, we have put forward many questions about temperature cracks in concrete dams. Some Chinese scientific and research institutes that have contact with construction units of hydropower stations are also paying close attention to this issue and are studying measures to prevent temperature cracks. The rational division (block) of mass concrete dams during construction is one of the effective measures to prevent harmful and sometimes dangerous temperature cracks in buildings.