According to the space regularities of distribution of ground loss and by image method theory, the calculation formulas of superimposed stress are deduced.

根据土体损失的空间分布规律，应用镜像法原理，推导了土体损失产生的附加应力计算公式。

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New coordinate systems are not rectangular coordinates system and new connections and regularities of nuclear system distribution are found.

这里新坐标系不是直角系，能发现核素系统分布的新联系与规律。

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It can also be used to detect indirectly the distribution of soft soil and soil caves by analyzing their development regularities and their relationships with caves or grooves.

通过分析软土、土洞的发育规律以及它们与溶洞、溶槽的关系，可间接探测软土和土洞的分布。

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