1) crack-resistance index
抗裂指数
1.
The crack-resistance of hydraulic concrete material(crack-resistance index) and hydraulic concrete structure(safety factor of crack-resistance) are two different concepts,which can not be obscured.
水工混凝土材料抗裂性(抗裂指数)与水工混凝土结构抗裂性(抗裂安全系数)是两个不同的概念,不能混淆。
2) anti-crack evaluation index
综合抗裂指数
1.
According to the application of the cement treated base,this thesis analyzes the cause of reflection cracks in cement treated base asphalt pavement,combined with strength,dry and heat shrinkage deformation properties,anti-crack evaluation index is put forward.
针对目前水泥碎石基层的应用现状,分析了水泥碎石基层沥青路面产生反射裂缝的成因,并结合强度、干温缩变形性能提出了综合抗裂指数的抗裂评价指标。
3) anti-crack
抗裂
1.
The shrinkage-compensating effect of expansive agent on high performance concrete has been evaluated based on the research of its influence on the capabilities such as strength, expansion-shrinkage, anti-crack etc of high performance concrete of 50~100MPa.
通过研究膨胀剂对50~100MPa高性能混凝土的强度、胀缩、抗裂等性能的影响,来探讨膨胀剂对高性能混凝土的补偿收缩作用,并介绍高强高性能混凝土在工程中的应用。
2.
This method releases the distorts and the restraint,reduces the concrete face slab tensile stress,realizes the division function of the slab anti-crack and the anti-seepage.
在分析面板裂缝成因的基础上,根据弹性力学理论及结构分析提出沥青混凝土面板与普通混凝土面板组合的双层面板结构,从而使上下层面板解除约束,释放变形,减小面板拉应力,实现面板抗裂变形与防渗功能分割,通过理论分析及数值计算,验证了此措施的可行性。
3.
The optimized adoption methods of plastic bending moment ratio are derived to make the anti-crack capability best and the mount of steel least separately for reinforced concrete slab bottom based on Navier solution and steel optimization of the thin-slab theory.
基于薄板理论的Navier解和钢筋优化分析,分别建立了保证钢筋混凝土板板底抗裂性能最优和配筋量最少的塑性弯矩比取值优化方法。
4) anti-cracking
抗裂
1.
Experimental study on the anti-cracking waterproof agent of concrete;
混凝土抗裂防水剂ASA的试验研究
2.
Research on anti-cracking of high performance concrete at early age;
高性能混凝土早期抗裂研究
3.
Reserch on anti-cracking function of big-size gravel;
水泥稳定大粒径砾石的抗裂性能研究
5) cracking resistance
抗裂
1.
In order to ensure successful pumping and improve the cracking resistance of structural concrete in anchorage zone, SFRC containing effective deformed steel fiber was optimized.
钢纤维混凝土(SFRC)具有抗裂、耐疲劳和耐久的特性。
2.
So far as the concrete materials for the face concrete of the concrete face rock-fill dam(CFRD),the higher cracking resistance and impermeability are required;for which the characteristics mentioned above can be met by the material feature of polyacrylonitrile(PAN) fibre.
混凝土面板堆石坝面板混凝土材料对抗裂、防渗性能要求较高,聚丙烯腈纤维对上述性能有显著作用,包括其高强、高弹模、高耐碱性、与水泥基材料良好的结合能力、分散性良好等特点;它使混凝土的抗裂性提高73%、抗渗性提高56%、冻融循环次数可达500次以上。
3.
This paper researches the index for estimate on the impermeability,frost resistance and cracking resistance of dam RCC,and proposes the coefficient of permeability qua the impermeability index,the quantity of gas qua the index of frost resistance.
对大坝碾压混凝土抗渗、抗冻和抗裂的评估指标进行分析研究,建议抗渗指标以渗透系数给出,可用含气量的多少来评估抗冻性,建立的抗裂模型和简单抗裂模型可用于对大坝混凝土配合比有关参数的优化。
6) crack resistance
抗裂
1.
Study on crack resistance mechanism of steel web in hardened plastering;
钢网在硬化抹灰层中的抗裂机理研究
2.
Calculation on circumferential crack and axial crack resistance of embedded pipe below dam;
坝下埋管环向裂缝与轴向抗裂验算
3.
Using crack resistance as a main design target,a new mix design method for large-span concrete box girder was put forward.
基于箱梁混凝土的抗裂性,提出了新的大跨径箱梁混凝土配合比优化设计方法。
参考词条
补充资料:迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中,}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100,如某一地区的值越大,反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂,则: }艺材。一芝Mj、}EIM汀艺。+乏M,(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二,么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中,M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I,j为迁移偏好指数。通过计算迁移偏好指数,可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如,专业技术人员的人数所占比重,各种文化程度人数所占比重等,以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中,M为迁移人数;M,为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。