1. Concrete curing in summer: high pier curing: when the temperature is high in summer, when the high pier is poured in sections, the pier body is surrounded by soft water pipes in the pouring section, and drainage holes are left on the hoses, which are connected with water pump pipes, and water is pumped from rivers or reservoirs for curing. When pouring concrete for high piers and pallets, lift the water tank to the top of the pallet, and firmly bond the plastic hose and water inlet pipe with adhesive tape. After the piers and trays are wrapped with plastic film, ropes are wound around the piers and trays to prevent the film from cracking in the wind. In the daily maintenance stage, the high-pressure water pump is turned on to lead the water to the water tank at the top of the pier, and the water slowly flows out around the brim of the tray along the plastic hose.

2. Low pier maintenance: After the short pier construction is completed, lift the water tank to the top of the tray, and firmly bond the plastic hose with the water inlet pipe with adhesive tape. After the pier and tray are wrapped with plastic film, wrap the pier and tray with rope to prevent the film from cracking in the wind; In the daily maintenance stage, the high-pressure water pump is turned on to lead the water to the water tank at the top of the pier, and the water slowly flows out around the brim of the tray along the plastic hose.

3. Cushion stone maintenance: spray and cover the surface of the cushion stone, and fill the bolt hole with water for maintenance.

4. Maintenance of the bearing platform: After the initial setting of the bearing platform, cover it with geotextile to keep it moist, and spray water by special personnel for maintenance for more than 7d.

5. Winter maintenance of concrete: thermal storage method: thermal storage method is a construction method that uses the heat of preheating raw materials and hydration heat of cement to tightly cover the periphery of concrete with thermal insulation materials to delay the cooling rate of concrete and gradually harden during the cooling process. It is a construction method for concrete to reach the critical strength of freezing at room temperature.

6. Admixture mixing method: This method is a method of adding an appropriate amount of admixture when mixing concrete, so that the strength of concrete increases rapidly, reaching the critical strength required before freezing, or lowering the freezing point, so that concrete can set and harden at negative temperature.

7. Electric heating method: Electric heating is a method of heating and curing concrete by converting electric energy into heat energy, which belongs to dry heat and high temperature curing.

8. Warm shed method: Warm shed method is a method of building a warm shed around the structure or component to be maintained with thermal insulation materials and heating it in the shed in the form of raw stove, hot air blower and steam pipe.