| 摘要 |
FIELD: construction.SUBSTANCE: method is realized by a device which comprises pipes with a circulating therein heated heat carrier laid under the bridge pavement, and connected in a common circulating circuit with pipes laid in a soil massif of adjacent embankments, and the formed circuit is equipped with a circulation pump ensuring the heat carrier circulation. Circulation circuit is additionally equipped with, at least, one heat pump of a "air-water" type, built by a capacitor part, which provides, if necessary, additional heating the heat carrier. Control of the device is performed by a controller of readings of a difference of temperature of the road bridge pavement and approach road sections from temperature sensors, laid under the road pavement, device is switched on when temperature difference exceeds the preset setting and is switched off when reducing temperature difference, switching on is performed in steps: at first the circulating pump, then, if the temperature difference does not decrease to the preset value, the heat pump are additionally switched on.EFFECT: method and device are proposed to equalize temperatures of the road pavement of approach embankments and highway bridges to avoid formating icing on the latter when reducing temperature below 0 °C using heat of a soil massif of embankments.4 cl, 2 dwg |
