中国古土壤现分为埋藏土和残余土两大类。
Paleosols of China are divided into buried and relict soils.
由于土的逐渐破损，会使其由峰值强度逐渐降低到残余强度。
Owing to the progressive failure of the soil, the strength may drop from peak value to residual value.
为提高计算结果的可靠度，采用了滑带土的残余抗剪强度指标和双参数法等手段。
In designing and calculating, several measures such as using the indexes of residual shear strength of sliding-belt soil and double-parameter method etc are ta.
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