在初始地应力场分析问题中，采用了多方程回归方法。
Initial in-situ stress field is analyzed with multiple variables and equations regression.
在此基础上，采用逐步回归法进行计算，进一步提高了计算精度。由此，得到了回归效果更显著的初始地应力场。
On the basis of the regression, progressive regression is used in order to increase fit precision, with which more obvious effect is obtained.
对工程实例地应力场的回归拟合计算表明，该方法回归拟合精度高，可广泛用于工程实践中。
The computation of practical engineering example shows this method is highly accurate, and can be used widely in practical engineering.
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