AB 2. Construction of lime stabilized soil subbase and base course, the temperature should be not lower than 5℃, and it should be completed one month before the first heavy freezing, so it is not suitable to arrange the construction in rainy season; Compaction thickness, each layer is not less than 100mm, and not more than 200mm, and should be light rolling before heavy rolling; Before laying the upper layer, the lower surface should be brushed and watered. In item C, the construction machinery shall not turn around on the broken subbase and base. If it must be carried out on it, protective measures should be taken. Item d, after the completion of rolling, it must be moisturized and maintained; The curing period shall not be less than 7 days. Maintenance methods can be water spraying, sand covering or low-viscosity soil, or waterproof film and asphalt film. During the maintenance period, vehicles are not allowed to pass except sprinklers. On the lime stabilized soil layer with covering measures, the speed of approved vehicles shall not exceed 30 km/h ... e, during the on-site mixing process, the water content shall be checked in time to make it equal to or slightly greater than the optimal value, and the soil and lime shall be fully and evenly mixed, and no plain soil interlayer shall be left.