西安市西北大酒店二层客房增加五层，对地基与结构墙体加固补强，采用预压桩托换及钢筋网片夹板墙法。

Precompressed pile foundation under pinning technique is used to reinforce the foundation and structural wall for adding the building named Xibei hotel from two floors to seven floors in Xian city.

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由于压电叠层作动器只能承受压力，为了保证压电智能主动杆能够承受一定的拉力，设计了预压装置。

As the piezoelectric stack actuator can withstand pressure only, a preload device is designed to ensure that the intelligent active member can experience tensile stress.

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所述的模内装饰成型方法可在预压成型时，使外界 的杂质异物不易对强化层造成损害。

The shaping method can prevent external foreign matters from damaging the reinforcement layer during the pre-press shaping process.

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