引起混凝土开裂的原因很复杂，实际上每一条的裂缝的产生均由几种因素组合作用而成。
The reasons to cause the concrete crack are more complicated. In fact, each crack is produced by several factors.
温度变形和自生收缩变形等受约束形成的拉应力，是引起混凝土早期开裂的主要驱动力；
The tensile stress induced by restrained thermal and autogenous shrinkage deformations was the main driving force of cracking in concrete at early age.
研究了混凝土大坝闸墩由于气温的交替变化引起开裂的力学机理。
The mechanism of pier cracking in concrete dam due to alternative variation of atmospheric temperature is studied.
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