retaining walls

A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.

论述了调库确定方法,材料选择及层做法,介绍了用正压法检测调库体操作过程,并给了国内外不同标准。

Counterfort retaining walls are optimized in the paper, using the optimum program, costs of different counterfort retaining wall parameters were calculated and based on the contrast analysis.

本文对扶壁式挡土墙进行优化计算,利用优化设计程序对不同参数下截面状态和工程造价进行分析比较。