The best design is made according to the design and analysis of practical retaining structure with double-row piles and as well as the revision of different programs with PKPM.

依托实际工程进行双排桩支护结构的设计，分析比较，再利用PKPM计算软件对不同方案进行计算校验，得出最佳设计方案。

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Combining with an engineering example, the author presents the methods of double queue piles, appliance conditions and questions that should be paid attention to in design and construction.

本文结合工程实例，介绍后排非连续双排桩的设计方法、应用条件、应注意的问题。

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Then, all the cylinders are distributed in two parallel lines, which makes the problem turn into the vibration isolation using double row of elastic piles.

随后，取圆柱体分布于两条相互平行的直线上，则问题演变为双排弹性桩屏障对于弹性波的隔离问题。

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