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发明公开
CN101768956A 掺生石灰降低高液限土路基工程压实度要求的施工方法 无效 - 撤回

掺生石灰降低高液限土路基工程压实度要求的施工方法
摘要：
本发明公开了一种掺生石灰降低高液限土路基工程压实度要求的施工方法，该方法包括以下步骤：A、对路基中的高液限土进行掺2％～4％的生石灰，并对掺过生石灰的高液限土进行焖料，焖料时间为2-4天，每天用挖机将焖料翻拌一至二次；B、包盖处理：将上述掺生石灰的高液限土填入路基表面下1.5m以下的区域，并在其表面设不透水土工膜，并且在掺生石灰的高液限土的两边填设3米宽的非高液限土的土料；C、采用压路机碾压，第一遍碾压时速1.5～1.7km/h，以后采用碾压时速2.0～2.5km/h。采用了上述施工方案，将压实度标准由原来的93％降低到88％，路堤的路基强度满足所规定的标准，从而降低了施工成本并提高了施工进度。
摘要（英）：

The invention discloses a construction method for reducing the high-liquid limit soil subgrade engineering compaction requirement by doping quicklime. The method comprises the following steps of: A. doping 2-4 percent of quicklime into the high-liquid limit soil in a subgrade, carrying out material braising on the high-liquid limit soil doped with the quicklime for 2-4 days and turning and stirring the braised material once or twice by an excavator every day; B. carrying out coverage processing; filling the high-liquid limit soil doped with the quicklime into an area below 1.5 m from the surface of the subgrade, mounting a waterproof geomembrane on the surface and filling a non-high-liquid limit soil material with the width of 3 m at both sides of the high-liquid limit soil doped with the quicklime; C. rolling by a road roller, wherein the rolling speed per hour for the first time is 1.5-1.7km/h, and the following rolled speed per hour is 2.0-2.5km/h. By adopting the construction scheme, the compaction standard is reduced from original 93 percent to 88 percent, and the subgrade strength of an embankment meets the specified standard, thereby reducing the construction cost and improving the construction progress.

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