The stratification of the sub stratum in an engineering site is studied using optimum partition method of multi variable and ordered geological data in mathematical geology theory. 采用數學(xué)地質(zhì)理論中的多元有序地質(zhì)數據的最優(yōu)分割方法對工程場(chǎng)地松散巖土層亞層進(jìn)行了劃分。