retaining wall

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

了气调气性的确定方法,气材料的选择及气层的做法,介绍了正压法检测气调气性的具体操作过程,并给出了国内外的不同气性标准。

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计算,利设计程序对不同参数下的截面状态和工程造价进行分析比较。