In this paper, the application of the sand cone model in supply chains was discussed and new research avenues were opened in the research of the compositeness of supply chain.

通过将沙堆模型应用于供应链，为供应链竞争力问题提出新的分析思路。

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In this paper, the application of the sand cone model in supply chains is discussed and new analysis thoughts are provided in the research of the compositeness of supply chain.

通过将沙堆模型应用于供应链，为供应链竞争力问题提出新的分析思路。

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Given this, it is necessary to detect the roadbed compactness with Rayleigh wave method and compare it with the sand cone method and cutting ring method, which verify its feasibility and reliability.

鉴于瑞雷波勘测技术在工程领域中的应用范围逐渐扩大，并取得了较好的效果，故有必要以瑞雷面波法对路基压实度进行检测，并与常规方法灌沙法和环刀法进行对比，验证其可行性与可靠性。

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