分析了施工阶段地铁车站顶板裂缝的成因，根据实测数据计算了监测段的温度应力。
The cause of subway station top floor cracking during construction is analyzed, and the temperature stresses of the monitoring section are computed using the practical test data.
为煤矿进行水体下采煤提供了一种既方便又实用的预计顶板导水裂缝带高度公式。
A convenient and practical formula used to estimate the height water flowing fractured zone has been provided for underwater mining.
混凝土顶板长期处于大气环境中，产生内应力致使混凝土产生裂缝。
Leading to cracks is producing the internal stress which the concrete roof being at the atmosphere environment for a long-term.
混凝土顶板长期处于大气环境中，产生内应力致使混凝土产生裂缝。
Leading to cracks is producing the internal stress which the concrete roof being at the atmosphere environment for a long-term.
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