...坡；混凝土板衬砌；混凝土等级；混凝土板厚；安全系数 [gap=990]Keyword：tunnel slope；concrete board liner；concrete grade；concrete board thickness；safety factor ...
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... concrete disintegration 混凝土离析 concrete grade 混凝土标号 concrete grouting line 混凝土浇注线、混凝土流水作业 ...
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Pumping concrete grade 泵送混凝土标号
concrete grade of strength 混凝土强度等级
grade of concrete 混凝土牌号 ; 混凝土标号 ; 混凝土强度等级
high grade concrete 高标号混凝土
dense grade asphalt concrete 密级配沥青混凝土
low-grade concrete 低标号混凝土
Multiple strength grade concrete 多强度等级混凝土
Concrete dense grade asphalt 密级配沥青混凝土
Concrete Down To Grade 具体到二级
But bad construction control results in some low concrete grade of foundation piles and some broken piles.
在施工中，由于管理不善，造成部分基桩砼标号低于设计标号，并伴随有断桩等现象的工程质量事故。
Now the present code has got considerable changes in concrete grade of strength. In order to understand and put the present code into practice correctly, this paper has stated …
为了正确理解和执行现行规范，本文采用对比的方式叙述了这种变化，并导出了对工程非常有用的混凝土强度等级与原规范混凝土标号之间的换算关系。
At the end of the paper, a stress strain response model of different concrete grade has been built only using the compressive strength, and this model coincides well with the experiment results.
文末，仅通过混凝土立方体抗压强度，建立了不同强度等级混凝土的应力-应变曲线上升段本构关系，该模型结果与试验结果吻合很好。
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