retaining wall

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

论述了气调库气确定方法,气材料及气层做法,介绍了用正压法检测气调库气具体操作过程,并给出了国内外不同气。

2.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。