查询词典 concrete

The main products of our company are: Ready—mixed concrete mixer, ready—mixed concrete batcher, ready—mixed concrete mixing plant, trailing concrete pump, mobile concrete mixing canister, soil—cement mixing plant and engineering machinery series etc.

公司主要产品有：混凝土搅拌机、混凝土配料机、混凝土搅拌站、拖式混凝土输送泵、搅拌车罐、稳定土厂拌设备、工程机械等系列。不断追求设计与制作的完美，愿与您精诚合作，共创美好未来。

The influence of free surface on tunnels is discussed.The influence of blasting vibration on fresh concrete lining is studied. The finite element method is employed to analyze the spatial distribution of temperature and thermal stress of fresh concrete lining, the wave function expansion method is used to study the interaction of blasting seismic wave and the circular tunnel with lining, thenthe safe PPV of fresh concrete lining with different age is decided by taking into account the thermal stress of concrete lining. Using the conformal mapping method, the influence of blasting vibration on the arch tunnel with lining is studied and the safe PPV of concrete lining is deduced under different incident angle.

研究了爆破振动对新浇混凝土衬砌的影响，采用有限元法求出了圆形洞室新浇混凝土衬砌内温度和温度应力在空间上的分布及其随时间的变化，采用波函数展开法求解了爆破地震波与有衬砌圆形洞室的相互作用，获得了考虑新浇混凝土衬砌内温度应力前提下不同龄期的新浇混凝土衬砌的安全振速；利用保角变换研究了爆破振动对直墙拱形有衬砌隧洞的影响，得到了爆破地震波以不同角度入射时混凝土衬砌的安全振速。

Raise concrete impermeability to have line of two kinds of technologies normally, one kind is the impermeability; that the contact that cuts off infiltration and concrete through the 3rd medium will come to raise concrete another kind is the impermeability that will raise concrete through raising the close-grained sex of concrete oneself.

提高混凝土抗渗性通常有两种技术路线，一种是通过第三介质隔断渗透物和混凝土的接触来提高混凝土的抗渗性；另一种是通过提高混凝土自身的密实性来提高混凝土的抗渗性。

In connection with the application of concrete-filled steel tubular column in the engineering practice in this country at present,a new fashioned connection in framed structure of concrete-filled square steel tubular column with reinforced concrete beam was proposed,being a connection of concrete beam with non-through hidden steel corbel steel tubular column filled with concrete.

结合我国现行钢管混凝土柱在实际工程中的应用状况，提出了用于方钢管混凝土柱-钢筋混凝土梁框架结构的新型连接节点形式非穿心暗钢牛腿方钢管混凝土柱与混凝土梁节点，采用了X型加载试验方案，制作了1∶3的试验模型，进行了低周反复荷载作用下的试验研究，得到了相关的钢筋应力应变发展规律和相应的滞回曲线，通过对试验结果节点破坏的机理分析，提出了进一步的改进措施。

The finite difference equation was built by using elemental energy balance of reinforced concrete beam with three surfaces exposing to fire based on the thermal properties of concrete. The influence of the physical or chemical reaction of free or combined water in concrete on the temperature field of concrete was considered by magnifying the specific heat of concrete.

根据三面受火钢筋混凝土梁离散体积单元的能量守恒原理，建立了有限差分平衡方程，在合理确定混凝土热工参数基础上，采用增大混凝土质量热容的方法，考虑混凝土中自由水与结合水的物理化学反应对混凝土温度场的影响。

The prestressed concrete simple beam compares reinforced concrete beam to compare, the merit includes: Uses the high marking concrete, section minification, the dead weight reduces, may increase the spanning ability; Uses the high strength steel bar, may save the steel products; But raises the sorghum body large scale the crack resistance, increases beam's durability, the concrete total cross-section bearing, has fully displayed the concrete resistant to compression performance superiority, also enhanced Liang's rigidity.

预应力混凝土简支梁较钢筋混凝土梁相比，优点有：采用高标号混凝土，截面尺寸减小，梁体自重减轻，可以增大跨越能力；采用高强度的钢筋，可节约钢材；可大幅度提高梁体的抗裂性，增加梁的耐久性，混凝土全截面受压，充分发挥了混凝土抗压性能的优势，也提高了梁的刚度。

The design procedure of concrete mix proportion was analyzed through concrete compression testing,it was proposed that the least-squares method of numeric analysis can decrease the error between the mixed concrete strength and concrete strength provided in the practical engineering can decrease,and can increase the mixed concrete precision technology.

通过做混凝土抗压强度试验对混凝土配合比设计的步骤进行了分析，提出了通过用数值分析中最小二乘法的方法来减小所配混凝土强度和实际工程所提供强度之间的误差，提高所配混凝土精确度的技术。

ABSTRACT Chemical corrosion mechanism of concrete in Qinghai salt lake is briefly reviewed, and bittern resisting behavior of high alumina cement concrete, magnesium oxychloride cement concrete, alkali-activated slag concrete, ferrialuminate cement concrete and polymer impregnated concrete are also reported in the paper.

摘 要 简述了普通水泥混凝土在盐湖环境中的受腐蚀机理﹔报道了高铝水泥、氯氧镁水泥、铁铝酸盐水泥、碱矿渣和聚合物浸渍混凝土的抗盐卤腐蚀行为﹔对硅灰高密实混凝土的抗盐卤腐蚀机理进行了详细讨论，认为改善孔结构是获取混凝土高抗腐蚀性的有效途径。

We want to buy Concrete Block Machine, Concrete Roof Tile Machine, Concrete Pipe Machine, Concrete Mixer, Concrete Batching Plant, Terrazzo Tile Plant, Hollow Core Slab Plant, Concrete Spun Pole / Pile Plant, Concre

我们要采购具体的区段机器，具体的屋顶砖瓦机器，具体的管机器，具体物混合器，具体物一届植物，水磨石砖瓦厂，洞核心平板厂，具体的织成杆/堆厂，具体物预制建筑植物

Study on silica fume at the Scandinavian countries, in spite of the 20th century, the 50's people have a better understanding of the role of silica fume and a preliminary study, but applied to actual projects from the beginning of 70's, first of all, Norway and Sweden and other countries in the port terminals, the North Sea oil fields and underground parts of mines in the silica fume concrete, in 1982, Norway in V Bashang Minoves formally adopted the silica fume concrete dam, the 20th century, the early 80s established in Quebec, Canada silica fume concrete, and large volume of silica fume concrete to carry out pilot studies, mixing high-grade 10,000 cubic meters of concrete, the United States in 1983 a patch of concrete with silica fumekatcha River Dam stilling basin well.

研究硅粉在斯堪的纳维亚国家，尽管在20世纪50年代的人有更深入的了解方面所起的作用和硅粉的初步研究，但应用到实际项目从一开始的70年代，首先，挪威与瑞典和其他国家的港口码头，北海油田和地下部分地雷硅粉混凝土，在1982年，挪威钒坝上米诺维斯正式通过硅粉混凝土坝， 20世纪80年代初成立在加拿大魁北克硅粉混凝土，以及大量的硅粉混凝土进行试验研究，混合高档一点○万立方米具体，美国在1983年一块混凝土二氧化硅fumekatcha江水库消力池以及。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了