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.

论述气调库气密性的确定方法,气密材料的选择及气密层的做法,介正压法检测气调库气密性的具体操作过程,并给国内外的不同气密性标准。

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.

本文对扶壁式挡土优化计算,利优化设计程序对不同参数下的截面状态和工程造价分析比较。