查询词典 aggregate amount

In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1～0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.

本文采用三维有限元浮动网格法仿真计算程序，对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析，对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析，在此基础上提出了推荐的施工方案；根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案；玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果，对推荐的施工方案进行了温度场和温度徐变应力仿真计算，并对比分析了两种不同骨料情况下的温度场和温度应力，结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求，且灰岩细骨料优于玄武岩细骨料；计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响，夏季蓄水方案与冬季蓄水方案相比，坝体上游变态混凝土区域最大拉应力小0.1～0.3MPa，其他部位最大拉应力无明显变化，夏季蓄水对坝体上游面混凝土的抗裂有利；根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施，对大坝的设计温控措施进行了综合评价，并提出了该工程的温控措施，对温控设计和优化施工方案具有重要参考价值。

In order to elucidate the effect of the texture, structure and particle size of aggregate on determining its ASR reactivity, the texture, structure and ASR features of zeolitic pearlite and siliceous gravel were examined by optical microscope, XRD and SEM/EDS. It has been found that in addition to the type and amount of reactive constituents in aggregate, the physical structure has also strong influences on the process and expansion behavior of ASR, and the influences of physical structure may be various with particle size of aggregate.

为进一步研究集料结构构造和集料尺寸对鉴定集料ASR活性的影响，用光学显微镜、XRD和SEM／EDS等方法研究了集料的岩石学、矿物学特征及其ASR反应特征，发现除集料中活性组分的类型和数量外，集料的物理构造特征对ASR过程和膨胀行为有显著影响，而且集料的尺寸不同，物理构造的影响程度有差异。

Among them, beijing investment scale is the largest, investment case amount is 3, investment amount is 209 million dollar, those who take total investment amount 42%; Shanghai does not have investment case this month; Tianjin invests case amount to be 1, investment amount is 100 million dollar; Xinjiang invests amount 90 million dollar, row area invests amount the 3rd.

其中，北京投资规模最大，投资案例数量为3个，投资金额为2.09亿美元，占总投资金额的42%；上海本月无投资案例；天津投资案例数量为1个，投资金额为1亿美元；新疆投资金额9000万美元，位列地区投资金额第三名。

Based on this model, a3- D random convex polyhedron aggregate model considering the actual aggregate content, gradation and shape of aggregate is established.

并在随机球骨料模型的基础上，形成随机凸多面体骨料模型。

The positive fact is an aggregate that includes some elements about the affairs composed,an informatory point in the fourth—dimension while the negative fact is an empty aggregate that includes nothing,a supplementary aggregate of any positive fact.

积极事实是一个包含事实构成要素的集合，在四维时空坐标中对应的是一个确切的点；而消极事实是一个不包含任何元素的空集，是任何一个积极事实的补集。每一积极事实都对应着无数消极事实。

Image analysis based on coarse aggregate shape and morphology assessment has been of recent research efforts to successfully indices to results from manual testing methods as well 3 as to pavement response and performance. The objective of this study is to to observes the moves of coarse aggregate of stone mastic asphalt and dense asphalt concrete by using image analysis technique.To establish the model of coarse aggregate moving behavior and asphalt pavement rutting.

本研究计画由载重过程，以影像处理分析技术观察SMA 级配及密级配粗粒料移动轨迹变化，以定量描述SMA 级配粗粒料构架形成机制、抗车辙能力成因、粗粒料材料形状组合因子偏差等影响，建立粗粒料移动轨迹与车辙量之行为模式，深入了解SMA 材料载重行为，俾供应用於公路及机场铺面能完全发挥其特性。

By the medium of experiment and research to alkali-aggregate reaction of Shan XI Face Concrete,We discussed respectively from total alkali in concrete, alkali reactiveness of aggregate and damp environment that alkali-aggregate reaction may be damaged.

提要：本文通过珊溪面板混凝土碱骨料反应的试验研究，分别从混凝土总碱量，骨料的碱活性及发生碱骨料反应破坏的潮湿环境进行了论述，认为珊溪面板混凝土是安全的，不会发生碱骨料破坏。

Recycled aggregate instead of natural macadam and sand is used to make recycled aggregate concrete and one of indexes-the capacity of resisting the freezing and thawing repellence of recycled aggregate concrete's durability with city, garbage melting slag is discussed.

为了研究城市垃圾熔渣细骨料以及废弃混凝土粗骨料再生利用的可能性，着眼于城市垃圾熔渣再生混凝土的耐久性能，试验以100%再生粗骨料以及垃圾熔渣细骨料替代天然碎石和砂子制备再生混凝土，探讨了城市垃圾熔渣再生混凝土的耐久性能之一抵抗冻融循环的能力。

Regeneration aggregate can substitute natural aggregate and be used for highway base and subbase aggregate.

得出再生集料可以替代天然集料用于高等级公路基层和底基层的结论。

The first part is overall design of SJ-180 tractor rear cross-body finish machining boring aggregate machine tool including brief introduction of aggregate machine tool, design steps of live axle axlebox,selection of tools and cutting dosage for aggregate machine tool.

机床部分为松江180拖拉机后桥壳精镗组合机床总体设计。这部分包含了组合机床的简介，主轴箱的设计步骤，刀具和切削用量的选择及组合机床的总体设计。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。