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- The paper studies the roller compaction character of desert sand used for embankment material. 本文对沙漠砂作为填我土料所具有的碾压特性进行了研究。
- The massive project practice proved the VC value has the remarkable influence to the roller compaction concrete performance. 大量工程实践证明,VC值对碾压混凝土的性能有着重要影响。
- YOO T S,SELIG E T.Dynamics of viboratory roller compaction[J].Journal of the Geotechnical Engineering Division,1979,105 (Gt12):1114. 秦四成;程悦荪;李忠;等.;振动压路机振动轮-土壤系统动力学分析[J]
- Once roller compaction is completed for each layer, apply rapid test of the density and porosity with a nuclear densimeter... 每层碾压完毕,用核子密度仪快速检测压实密度和孔隙率,...
- We can cut in grants the content and size of untrue grains through roller compaction,souring,roller compaction one more and drying to use solvent A. 通过使用溶剂A对废砖料进行碾压、困料、二次碾压、干燥处理后,可以大大减小假颗粒的含量和尺寸,提高了废砖料的使用效果。
- The same forces and mechanisms responsible for size enlargement in roller compaction are responsible for bond formation during tabletting. 碾压中施加于颗粒增大的力和机理也用于压片的粘合成型。
- The design standard of embankment material is verified, the roller compaction parameters are selected, the roller compaction technology is studied and the placement construction measures are putted forward. 经过现场试验研究,核实了该填筑土科的设计标准,选择了施工碾压参数,研究了碾压施工工艺,提出了填筑施工措施。
- Finally, it is pointed out that interspace can be prevented by control of the height of pouring, adjustment of the construction order, and improvement of the quality of roller compaction. 结果表明,低压缩性、高杭剪强度的垫层料和砾石材料变形较小,通过控制填筑高度及施工顺序、提高碾压质量等措施,可防止或减少面板脱空现象。
- Abstract: Based on the results of percolation test for core samples from a certain roller compact concrete dam in China, this paper presents a summary review on the law of precolation features of roller compact concrete. 文摘:根据国内某碾压混凝土工程坝体芯样渗透特性试验成果,对碾压混凝土渗透特性规律进行了总结评述。
- It concludes that percolation of roller compact concrete is of self-compactness by time effect under continuous action of water head and there may exist partial Darcy flow regime in roller compact concrete under high water head. 认为在持续水头作用下,碾压混凝土的渗透具有时效自密性;高水头作用下的碾压混凝土可能存在偏达西流现象。
- roller compaction riveting press 滚辗式压铆机
- standy gravel roller compaction ground 砂砾石碾压地基
- influenence fators of roller compaction 干法制粒影响因素
- Vibrating roller compacts the earth until it can bear the weight of the base course and wearing surface that will rest on it. 震动压路机将泥土压实,使其能承受上面的基层和磨损面的重量。
- The Tuka hydropower project is a medium-sized hydropower development with a roller compacted concrete gravity dam in Yunnan province,China. 云南土卡河水电站是一个中型水电工程,拦河坝为碾压混凝土重力坝。
- With the fast developing of roller compacted concrete technique in building dam, currently the height of dams becomes more and more heigh. 随着碾压混凝土建坝技术的迅猛的发展,目前建坝高度越来越高。
- A new method for anti - seepage coating of roller compacted concrete dam by using wet - mix shotcreting polyacrylate emulsion cement mortar(PAE mortar) is presented in this paper. 针对碾压砼坝上游面的防渗,提出了湿法喷涂丙乳砂浆集中防渗的新方案。
- time interval of two-layer roller compact 层间间隔时间
- There has made a huge advance in roller compacted concrete damming technology of our country after about 20 years of further research and practical application. 经过近20年的深入研究和工程实践,我国碾压混凝土筑坝技术已有了很大的进步,其坝型、坝高、坝体体积和工程数量都已达到或超过目前世界先进水平。
- The problem of thermal stress and a need for temperature control in the mass concrete construction also occur in the roller compacted concrete dams(RCCD). 大体积混凝土的温度应力问题与温度控制要求在碾压混凝土坝中同样存在。