各施工段开工之前，首先做好填挖方段的截、排水沟，确保排水顺畅，软土段的路堤段优先进行处理。

Before the construction sections start up, we should work the intercepting drain and barrel drain of the balanced sections well, to make sure the drainage unhindered.

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若把垫层铺设的指导思想改为“截污”，可充分利用对垃圾污染质具有净化或阻隔能力的场地粘性土，降低垫层铺设成本。

If the aim of paving the liner is turned to "filtration", we can make full use of the purification or partition capability of the clayey soil to reduce the cost.

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