Based on the finite element analysis, the early crack condition of a cast-in-place reinforced concrete slab is evaluated by the crack resistant coefficient.

通过对钢筋混凝土现浇楼板的有限元分析，提出用抗裂系数来评价现浇楼板在早期的裂缝状况，并针对楼板的不同部位采用对应的裂缝评价标准。

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Elastic resistant coefficient, deformation and compressive moduli of surrounding rock in large-section loess tunnel are very important for design of tunnel.

对于高速铁路大断面黄土隧道严格的设计计算而言，黄土隧道围岩的弹性抗力系数、变形模量和压缩模量十分重要。

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Based on the Mohr-Column rule, the formula for calculating rock resistant coefficient is given in the paper, and the formula can be applied in kinds of rock conditions.

基于莫尔—库仑屈服准则推导得出的围岩抗力系数计算公式，具有较强实用价值。

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The result is a tough material that has a low coefficient of friction comparable to that of Teflon and is highly resistant to abrasion.

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