Repairing concrete crack through embedded pipe is a new attempt in the field of structure repairing and a preparation for a kind of intelligent concrete with self - healing capability 摘要预埋管混凝土裂缝灌浆修补技术，是混凝土裂缝修补技术中的一种新尝试，同时也为新型自愈合仿生混凝土材料的研究和开发作前期准备。
The crack prevention of hydraulic structures concrete is thoroughly studied from theory and practice in this paper . a lot of practical problems are solved . the main contents are as follows : a 本文就水工混凝土裂缝控制问题，从理论上和实践上进行了较深入地研究，解决了实际工程应用中遇到的一些难题，主要工作如下： a
The paper presents a series of anti - cracking measures taken during the construction of mass concrete in hot weathers to prevent concrete cracking . with these measures , anticipated results were achieved 摘要文章阐述了热天大体积混凝土施工过程中，到了预期的效果。为防止混凝土裂缝的产生，采取了一系列相应的防裂措施，达了预期的效果。
Causes for generating fractures in mass concrete are analyzed . measures to prevent fracturing are introduced , which include selecting of material , formulation variables , construction techniques and so on 摘要大体积混凝土表面容易出现裂缝，影响混凝土质量。从材料选择、配合比设计和施工工艺等方面阐述了大体积海工混凝土裂缝控制方法。
Abstract : in this paper , on the basis of the results of calculation and investigation , the characteristics and the causes of concrete crevice in pumping stations are analysed , the corresponding preventive measures are put forward 文摘:以计算和调查的结果为依据，对泵站混凝土裂缝的特点和裂缝产生的原因进行了分析，并提出了相应的预防措施
This model can be the same with the three dimensions nonlinear finite element analysis of large and complex reinforced concrete structures conveniently , and it can carry out the analysis of stress - strain full process and concrete cracks 该模型可以适用于大型复杂钢筋混凝土结构的三维非线性有限元分析，并可以进一步实现应力应变全过程、混凝土裂缝等分析，且使用方便。
The influence of accessorial electrode and electrode distance on the electrodeposition effect was investigated , and three parameters , that is , rate of mass gain , rate of surface coating and rate of crack closure were measured 摘要就电沉积方法修复混凝土裂缝中辅助电极、电极距离对沉积效果的影响进行了试验研究，测定了沉积过程中试件质量增加率、表面覆盖率及裂缝愈合率。
At the same time , the problem from the concrete cracking is effectively solved through the measures such as enhancing the quality of the excavated surface , adjusting the admixing ratio of fly - ash in the concrete , and lowering the temperature rise of the hydration heat 同时通过提高开挖表面质量，以及调整粉煤灰掺量以降低水化热温升等措施，有效地解决了混凝土裂缝问题。
The problem of concrete crack is a complicated system problem that is cooperated with many factors . at present , using one - sided crack reasons predict and control concrete crack , so its application scope present the bigger limitations 混凝土裂缝问题是一个由多因素协同作用的复杂的系统问题，目前就单方面的开裂原因来进行混凝土裂缝预测与控制，其应用范围有很大的局限性。
The surface cracks of concrete dam in the fengman projects were surveyed and detected with non - damage detection methods in the fields . the pouring process of the concrete was simulated with finite element method , and then the stress distribution in the dam was computed 对丰满大坝溢流坝段新浇混凝土裂缝进行了现场调查、无损性态检测；采用有限元法模拟浇筑过程中混凝土内的应力分布。
