雨水管道应按设计规定的位置安装，悬吊管不设坡度、要水平安装。
Stormwater pipeline design requirements should be the location of installation, suspension control is no slope to the level of the installation.
类似下水管道，铁路线的坡度平缓，经常从地下穿过或从高空越过高速公路、溪流、险山和其他障碍物。
The grades are gentle and, like drainages, the routes often go under or over barriers such as highways, creeks, steep hills or other obstructions.
尤其是各浓度下，倾斜管道中的水力坡度研究几近空白。
Especially the study on the hydraulic gradient in the inclined pipes is nearly blank.
在前人的研究基础上，推导出了向下倾斜管道沉降性浆体的水力坡度计算公式。
On the basis of forefathers' research, we derive and publish hydraulic gradient of settling slurry in downward-inclined-pipeline.
与重力排水系统相比，具有管径小、管道安装要求空间小、悬吊管无坡度、下水道连接管和埋地管少等优点。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
对污水管道采用两相优化理论设计，对雨水管道采用与地面坡度一致法进行优化计算。
The two-phase optimization theory was adopted for designing the sewage pipe, and the ground slope consensus method was used for optimization calculation of rain water pipe.
对于均匀坡度的管道系统，安全率是评价系统水力安全性的重要指标。
For pipelines with a uniform gradient, safety ratio is an important index for evaluating the hydraulic safety of a system.
在坡度较陡且为高速水流的有压泄洪管道设计中如何避免管道内明满流的出现，是一个极具有科学研究价值和经济意义的课题。
It is a question having research value and economy content to avoid free surface-pressure flow in the high-speed pressure flood discharge-pipe design.
屋面雨水排水采用虹吸排水系统较重力排水系统，具有管径小、所需管道安装空间小、悬吊管道无坡度、下水道连接管和埋地管少等优点。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
屋面雨水排水采用虹吸排水系统较重力排水系统，具有管径小、所需管道安装空间小、悬吊管道无坡度、下水道连接管和埋地管少等优点。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
应用推荐