背水面 meaning in Chinese

air face
land side

The major causes for dyke breaches are the strong permeability of soil at the dyke breaches , resulting in infiltration or piping firstly , and nonuniform settlement on water side and land side of the dyke due to a long - term soakage of the dyke , further leading to cracking and erosion , and finally breaching of the dyke
溃口发生的主要原因是溃口处土壤组成透水性强,先发生散浸或管涌等险情,加上浸沧时间长,迎水面和背水面堤身沉陷不均匀,导致裂缝出现和冲刷的加剧也都促成溃口发生。