⑵桥梁①严格控制模板温度和混凝土与邻近介质的温差，必要时为模板采取覆盖

⑵ Bridge <br>① Strictly control the temperature of the formwork and the temperature difference between the concrete and the adjacent medium. If necessary, take covering measures and watering cooling measures for the formwork. <br>② Provide cooling circulating water pipes for large-volume concrete for cooling, set up a curing pool at the joint between the pier body and the cap platform, and set up heat dissipation ventilation holes inside the pier body. Pour concrete evenly in layers according to the cross-section level to avoid concentrated dissipation of hydration heat of concrete, which may lead to cracks inside or on the surface of the concrete. <br>③Attach great importance to vibrating operations. It is strictly forbidden to insert the vibrating rod into the concrete and then let it vibrate to ensure that the concrete is dense. <br>④ Strengthen maintenance to ensure the quality of concrete maintenance.

⑵ Bridges<br>① Strictly control the temperature of the formwork and the temperature difference between the concrete and adjacent media, and if necessary, take cover measures and spray water to cool the formwork.<br>② Provide cooling circulating water pipes for large volume concrete for cooling, set up a maintenance pool at the junction of the pier body and the bearing platform, and set up heat dissipation ventilation holes inside the pier body. Pour concrete evenly and horizontally in layers according to the cross-section to avoid concentrated and dispersed hydration heat, which can lead to the occurrence of internal or surface cracks in the concrete.<br>③ Attach great importance to vibration operation. It is strictly prohibited to insert the vibrating rod into the concrete and allow it to vibrate to ensure the compactness of the concrete.<br>④ Strengthen maintenance to ensure the quality of concrete curing.

⑵ Bridge<br> (1) Strictly control the temperature of formwork and the temperature difference between concrete and adjacent medium, and take covering measures and watering cooling measures for formwork when necessary.<br> (2) that circulate water pipe provide cooling for mass concrete is used for cool, a curing pool is arranged at the junction of the pier shaft and the bearing platform, and a cooling vent hole is arranged inside the pier shaft. The concrete shall be poured evenly in layers according to the section level, so as to avoid the concentrated emission of hydration heat of concrete, which may lead to cracks in the interior or surface of concrete.<br> (3) ③attach great importance to vibrating operation, it is forbidden to insert the vibrator into the concrete and let it vibrate to ensure the compactness of the concrete.<br> (4) Strengthen curing to ensure the quality of concrete curing.