由于湿陷性黄土的特性，湿陷性黄土地区给水排水管道设计越来越引起人们的关注。
Foundation treatment, water proof measures, design principle and characteristic of feed water and drainage pipeline in collapsible loess area were introduced.
对排水管道在满管流状态下的运行特性进行分析，并介绍了在满管流状态下管材的选择以及管道安装注意事项。
The working features of the drainage pipe under full pipe flow state was analyzed, the selection of pipe materials under full pipe flow state and the precautions for pipe installation were introduced.
着重研究了周围压力、剪切排水条件、初始相对密实度对粉煤灰稳态变形特性的影响；
The influence of confining pressure and drainage shear condition and initial relative density for flyash in steady-state deformation characteristic were discussed.
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