Based on the corrosion depth and pipe working life, the functional relationship between the pipe bend wear speed and conveying speed is proposed.
依据侵蚀深度和弯管工作寿命结果,推出了弯管磨损速度与输送速度之间函数关系。
Secondly, different changes in river programs, it's outside of river bend shows erosion status in different flood frequencies. And the localscour depth is different with different bend radius.
不同改河方案在不同洪水频率下河流弯道外侧呈现出冲刷状态,而内侧则呈现淤积状态,并且弯道半径不同,局部冲刷深度也不同;
Based on the scouring position and depth by current in river bend the scope of bank protection and better selection scheme of bank protection are determined.
根据河湾迎流顶冲位置和河床冲深,确定护岸范围和优选护岸护底方案。
The situation of maximum scour in river bend and the evaluation of its maximum depth, especially for small and medium brook or river in mountain, arc discussed in this paper.
本文讨论了河湾最大冲刷的位置及最大冲刷水深(特别是山区中小河流)的计算。
This paper has discussed the river bend flow characteristics, the maximum scouring water depth position, and the protection range of river bank.
对河湾水流特征、河湾最大冲刷水深位置、河湾防护范围进行探讨。
Finally the theory and formula of bend-shear stress calculation in prestressed thin wall box beams with variable depth are introduced and it is indicated that other formula is inadequate.
最后介绍变高度薄壁箱梁的弯剪应力计算原理和公式。并指出其他计算公式的不足之处。
Finally the theory and formula of bend-shear stress calculation in prestressed thin wall box beams with variable depth are introduced and it is indicated that other formula is inadequate.
最后介绍变高度薄壁箱梁的弯剪应力计算原理和公式。并指出其他计算公式的不足之处。
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