在大体积混凝土坝的施工中,由于混凝土浇筑的数量大,强度高,水泥发热量多,兼之设计和施工缺乏经验及设备技术力量不足等原因,便易于发生不同程度的质量事故,就其性质可分四类,即:冷缝、裂缝、架空不密实和强度合格率较低。以上事故肯定削弱了建筑物的强度,降低了建筑物的安全程度,但定量的评定其危害性,以及能否采用施工比较简便的灌浆方法进行处理,处理效果如何,尚少参考文献。为此由长办与某工程局在某坝,对上述前三类事故进行了模拟试件的力学和灌浆试验,兹就试验主要成果及看法分述如下,以供讨 In mass concrete dam construction, due to the large number of concrete pouring, high strength, cement heat and lack of design and construction experience and lack of equipment and other technical reasons, it is prone to varying degrees of quality accidents, in its nature Can be divided into four categories, namely: cold joints, cracks, overhead is not solid and low intensity pass rate. The above accidents certainly weaken the strength of buildings and reduce the safety of buildings. However, quantitative assessment of its harmfulness and whether it can be handled by the relatively simple construction grouting method have little effect on the reference. To this end by the Office of the long Office and a dam in a dam on the first three types of accidents were simulated mechanical test and grouting test, the main results of the trial and the views are described below, for discussion