为了弄清伸缩力和挠曲力的影响，除进行现场试铺、观测外，还进行了模型试验和动载试验。

Consequently, model test and dynamic loading experiment are conducted aside from carrying out field trial laying of rails and observation upon it.

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水平井套管柱的挠曲变形，不仅受自重引起的横向均布载荷的影响，而且还受轴向力的影响，同时还可能有初弯曲。

The flexual deformation of casing in a horizontal hole is caused not only by the uniform transverse load from dead weight, but also by the axial load, and the existence of initial bent if any.

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