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。
Action of beam between front row pile and back-row pile makes the stress state of double-row piles different from that of cantilever pile.
前排桩受力状态相当于在桩顶增加一个刚性支撑，后排桩受力状态相当于在桩顶施加一个拉杆。
Engineering practice has proved that, using double-row piles in foundation pit supporting is a quite well way to safety and economic benefit, when in the foundation pit within 10 meters in depth.
工程实践证实，开挖深度在10米以内的基坑中，采用双排桩进行基坑支护在安全和经济效益上是非常好的支护方式。
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