论文部分内容阅读
用水泥作为强度大而耐久的主要结构和组织材料,这是众所周知的事实.然而,水泥的钢性在某些土壤保持工程中却给人们造成颇大的困难,例如在分散的或胀缩明显的土壤中就是这样.石篮(Gabions)和“利诺”(Reno)沈床(有很大柔性)能够顺应由于土壤运动的变化,但是坚硬的水泥结构则阻碍这样的变化.如果在一个水泥结构周围,土壤确实发生移动,则往往使建筑结构不能达到其设计目标.在体积大、水流速度快有问题的沟道中,有时需要采用水泥结构来控制土壤侵蚀.
It is a well-known fact that cement is used as a major structural and structural material for strength and durability, however, the rigidity of cement poses considerable difficulties in some soil-retaining engineering, for example in the case of dispersive or bulging conspicuous This is the case with Gabions and Reno beds (which are very flexible) that can accommodate changes due to soil movement, but hard concrete structures impede such changes.If in a concrete structure Around the soil does move, it is often the structure of the building can not achieve its design goals in the bulky, fast flow problems of the channel, and sometimes need to use cement structures to control soil erosion.