Generally non-stop, winter due to low groundwater levels, most of the excavation of deep foundation pits and foundation construction work, installation and decoration of the more unlikely to stop. Outdoor construction is usually Nov. 15th.

In general, there is no specific time regulation, this is generally a condition regulation. Provisions come into effect when a certain condition occurs, not when a certain moment arrives. For example, the subsection contains concrete works, the temperature reaches 5 ℃ below, the local construction authority issued a stop-work order, such as subsection contains earthworks, permafrost depth reaches a certain limit on the issuance of a stop-work order. But do not rule out in order to catch up with the schedule to take measures for winter construction. So, this specific depends on the site arrangements.