高铁桥梁工程大体积混凝土裂缝成因及控制措施

Causes and Control Measures of Mass Concrete Crack of High-speed Railway Bridge

大体积混凝土裂缝现象的产生涉及到结构、原材料、施工工艺、环境等因素,但对其专业研究相对较少。工程实践证明,大体积混凝土施工难度较大,混凝土产生裂缝的机率较多,本文查阅了大量参考文献,针对高铁桥梁工程中大体积高强度混凝土的特性,简要阐述和分析了其产生裂缝的原因,并提出了相应的控制措施。

Mass concrete cracks are caused by structure, raw materials, construction technology, and environment. However, the professional research on it is relatively less. Engineering practice shows that big volume concrete construction difficulty is bigger; the probability of cracking of concrete is more. This paper refers to a large number of references, in view of characteristics of mass and high-strength concrete of high-speed railway bridge, expounds and analyzes its causes and puts forward corresponding measures.