结合具体工程实例，对延长墙背法和力多边形法进行了比较。

The extending method and polygon method are compared for a project case.

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所有房间都有特殊的木床，宿舍有双层高床，胶合板木材墙背。

All rooms have specially-made timber bed frame not touching the floor and the dorm has double high bed design with plywood timber wall backing.

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随着高宽比的减小，挡墙的水平位移量和挠曲变形逐渐减小，墙背变形形态亦发生了变化；

With the decrease of the height-width ratio, the amount of horizontal displacement and flexural deformation of the wall reduces and the shape of the wall back changes in turn.

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