大体积混凝土裂缝控制的研究与进展

摘要

Most cracks of mass concrete are due to thermal stress caused by concrete cooling,so taking effective measures to prevent the harmful surface and internal cracks caused by thermal stress has been a technical problem in mass concrete construction.Here,based on the cause of thermal cracks,crack control methods are summarized from design,construction,monitoring and crack repairing.Then the problems existing in all aspects and their practicability are analyzed,the prospects of application are discussed,and some future research directions are suggested,which could provide some useful references for similar subjects in the future.%大体积混凝土的裂缝大部分是由于混凝土降温产生的温度应力引起的,采取有效措施防止温度应力造成混凝土表面和内部出现有害裂缝,一直是大体积混凝土结构施工中的技术难题。根据温度裂缝产生的原因从设计、施工、监测和裂缝的修补四个方面来概述目前大体积混凝土裂缝控制的各种方法,分析了各方面存在的问题及其实用价值,讨论了其发展趋势和应用前景,以及进一步的研究方向,为今后工程中混凝土裂缝控制提供了有益的借鉴。