本文的主要研究内容为隧道二次衬砌混凝土配合比优化设计及其结构内力分析。
The main studying contents of this thesis are optimization-design of the mixture ratio of tunnel's secondary lining concrete and internal structural analysis.
经过自密实混凝土配合比优化设计和现场试块模拟试验后，NVC自流平外加剂成功应用于润扬大长江公路大桥北锚碇。
After optimizing the mix proportion and simulation of a big specimen in locale, NVC admixture applies well in Run-Yang bridge on the Yangtse River.
根据混凝土理论和工程实践，针对工程施工混凝土配合比，提出了在混凝土设计、生产中的一些优化控制重点和措施。
Based on the concrete theory and project practice, and aimed at the mixing proportion of concrete, some key points and measures on optimization control were put forward.
通过大量试验得到高掺量粉煤灰混凝土在高等级公路中应用的优化配合比，其特点是路面耐磨性能好、抗折强度高。
In this paper an optimized proportion of concrete with fly ash is obtained, which is suitable to be used in highway constructed by a spreading machine.
通过对混凝土原材料的优选和配合比的优化，配制出了高品质的自密实混凝土。
By rationally selecting concrete components and optimizing concrete mix proportion, high quality self-compact concrete was produced.
通过科学地选择组成材料及优化混凝土配合比，采用强度等级32.5 r型水泥配制高性能混凝土，并且成功应用于海港工程中。
By choosing rationally the composing materials and optimizing concrete mixing ratio, high-performance concrete adopting C32.5R is successfully applied in sea port engineering.
通过测试胶凝材料水化热、混凝土的坍落度和氯离子扩散系数、抗裂等级等性能，对C40海工混凝土的配合比进行了优化设计。
The mixture ratio of C40 Marine high performance concrete is optimized through test of the hydration heat of binding material, slump, chloride ion diffusion coefficient, anti-crack rand of concrete.
通过配合比正交优化和适宜的快速焙烧实验，烧制出了轻质、高强、低吸水率的优质粉煤灰轻集料。
Through orthogonal optimized proportion and suitable accelerated burning test, experiment has successfully produced high strength and performance fly ash lightweight aggregate.
注浆体配合比是预应力锚固体系优化设计的关键参数之一，对岩锚抗拔特性影响显著。
The influence of mixture ratio of grouting material on the pull-out behaviors of rock cable is obvious, which is one of key parameters for the optimal design of prestressed anchorage systems.
最后根据所得到的回归方程，采用最优化方法求出性能最佳的复合水泥的组成配合比。
Furthermore, optimization method was adopted for the purpose of getting optimal proportion of this composite cement.
例举了高层建筑结构转换层混凝土厚板采用水管冷却时的混凝土的优化配合比和测温方法。
The optimized concrete proportioning method and thermometry method under this condition are demonstrated with a real example.
通过采取设置后浇带，优化混凝土配合比，控制原材料质量等措施，保证环梁基础不产生裂缝。
Some measures of setting late poured band, optimizing mix proportion of concrete and controlling raw material quality can assure no cracks in circle beam foundation.
结合珠江大桥工程实际情况，制定了优化混凝土配合比和恰当布置冷却水管两个水化热控制方法。
Combined to the practical situation, draw up the mix proportion optimization and proper cool water pipe arrangement with hydrated heat control.
通过试验优化了再生混凝土砌块的配合比，为再生混凝土砌块生产和推广提供依据。
Through tests the mixture ratio of recycled concrete blocks was optimized and the foundation to produce and popularize the recycled concrete blocks was provided.
通过试验优化了再生混凝土砌块的配合比，为再生混凝土砌块生产和推广提供依据。
Through tests the mixture ratio of recycled concrete blocks was optimized and the foundation to produce and popularize the recycled concrete blocks was provided.
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