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1·The design and construction of pre-stressed anchor will influence the security of the project, and it is very important to study the fluctuating variation of the stress.

但预应力的不稳定变化关系到工程运营期的安全性，因而研究锚固工程的设计施工显得非常重要。

2·Hereby, the stress field on superficial slope could be divided into regions of stress lowering, rising and fluctuating from the outside to the inside.

据此，将斜坡浅表部应力场由表及里划分为应力降低带、应力增高带及应力波动带。