| 1. | The mechanism analysis of concrete bridge asphaltum concrete overlay structure 混凝土桥沥青混凝土加铺体系受力分析
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| 2. | Simple exploration to the project of laying asphaltum concrete on cement pavement 水泥路面加铺沥青混凝土面层方案适应性浅探
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| 3. | Pavement structure that is put forward in this paper turn away these disadvantages that the asphaltum road and ordinary concrete road easily come forth often 本文所提出的路面结构避免了沥青路面和普通混凝土路面易出现的缺点和不足。
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| 4. | This paper introduces construction technique and method of asphaltum concrete surface in a construction section of reruan road in songbei district of harbin city 本文介绍了哈尔滨市松北新区热源路道路工程某施工路段沥青混凝土路面面层施工工艺和方法。
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| 5. | At last , using the bilinear model couvades the restoring - force character of the new type asphaltum , we seeing about the seism resist effect of the asphaltum pillow 最后,以选取的模型为沥青力学行为,以一个实际建筑物为算例,计算和考察该新型材料作为基础隔震垫的隔震性能好坏。
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| 6. | Manufacturing technique of wax microcrystalline : with crude oil vacuum residua fractions as material , it is made from propane taking off asphaltum , furfural refining , ketone benzene taking off oil , and argil refining 微晶蜡的生产工艺流程:本产品以天然原油的减压渣油为原料,经丙烷脱沥青、糠醛精制、酮苯脱油、白土补充精制及加氢补充精制冷却后成型而制得该系列产品。
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| 7. | The characters and reasons of easily destroyed asphaltum road was mainly discussed in this paper . then some prevention and cure measures was proposed to improve the quality of road construction 摘要沥青路面易损病害易发生在水泥混凝土加铺沥青混凝土、地势坑凹多雨水、斜坡、转弯及十字路口、公交站等路段。合理设计路面结构、加强沥青路面防水设计、严格控制施工质量是沥青路面易损病害的主要防治措施。
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| 8. | During the period of asphaltum - concrete road construction , construction group is huge , whether the construction machines can be attempered reasonably and efficiently , then dispose kinds of unexpected changes , is the key of construction process 在沥青混凝土路面施工过程中,施工群体庞大,能否对各施工机械进行合理的、高效的调度,快速准确地处理施工过程中出现的各种突发变化,是整个施工过程的关键。
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| 9. | The analysis of micro - climate site of the road greenbelt in the building process of expressway , a lot of calcareousness , powder of coal ash , asphaltum and stone were put into used . on one hand , it completely destroys the original soil structure , making the soil really barren , on the other hand , the rise of roadbed also affects the ground water to go up , making the soil very drought 路体绿地立地条件分析高速公路在修建过程中,采用了很多的石灰、粉煤灰、沥青、石块等材料,一方面使原有的土壤结构被彻底破坏,土质十分贫瘠,另一方面路基抬高影响地下水位上升,土壤十分干旱。
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| 10. | 2 . tazhong ancient uplift originated from normal fault in paleozoic , hydrocarbon formed in ordovician period , structure reverse made tazhong uplift form from the middle ordovician period to the late ordovician period , and it provided geologic background for the deposit of silurian - devonian stratum . tazhong uplift formed at the end devonian , ancient reservoir was destroyed and asphaltum sandstone formed , structure deformation more destroyed ancient reservoir in early permian , after then the major of structure deformation is regulation 塔中隆起源于早古生代拉张背景下的正断层,寒武-奥陶纪为其烃源岩形成的重要时期;早奥陶世末-晚奥陶世末的构造反转是塔中隆起的主要形成期,同时也为志留系形成地层及复合圈闭提供了古地理背景;志留?泥盆纪塔里木盆地南北缘均转为活动大陆边缘,形成了大量的断裂和不整合;泥盆纪末塔中鼻状隆起基本定型,古油藏遭受破坏,形成了沥青砂岩;早二叠世晚期的构造变形使古油藏遭受进一步的破坏;二叠纪后构造变动主要以调节为主。
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