50results about How to "Improve snow melting efficiency" patented technology

The invention relates to a dust-removal drainage macropore asphalt pavement comprising a graded crushed stone composite layer. The asphalt pavement is characterized in that an upper surface layer, a middle surface layer, a waterproof anti-cracking layer, a dust-removal composite layer and an upper surface layer are arranged on a pavement structure from bottom to top sequentially; dust-removal devices are buried in the fixing layer of the dust-removal composite layer; the dust-removal devices are dust-removal pipelines which are distributed in a graded crushed stone fixing layer in a grid shape, and through holes are formed in the pipe walls of the dust-removal pipelines; back wash can be performed to the upper surface layer from bottom to top by the aid of the through holes in the dust-removal pipelines; or negative pressure pumping can be performed to seepage water in the upper surface layer by the aid of the through holes in the dust-removal pipelines. According to the dust-removal drainage macropore asphalt pavement comprising the graded crushed stone composite layer, drainage, noise reduction and skid-resistance of the macropore asphalt pavement can be effectively recovered and kept, the service life of the pavement can be prolonged, the pavement drainage efficiency is improved, the pavement accumulated snow melting efficiency is improved, the bulk temperature of the pavement is reduced, the driving safety is ensured, and the driving environment is optimized.

The invention proposes a road icing early warning and automatic disposal system control method. The weather forecast issued by the Meteorological Bureau is used to warn the road icing and notify the owner and provide a plan. Real-time and historical data to estimate the time of road icing, provide accurate alarm information to the owner according to the data of monitoring stations and sensors, and then calculate the parameters of deicing agent spraying amount, spraying interval and spraying times Provide the owner with recommended parameters, and re-evaluate after the spraying. If there is still ice, the second spraying preparation may be carried out. If there is no ice, the system may stop running, and wait for the information released by the Meteorological Bureau. The invention accurately analyzes the amount of spraying, the length of the spraying interval, and the number of spraying times, improves the snow-melting efficiency of the snow-melting agent, improves economic benefits, accurately obtains the best spraying time, automatically feeds back the road surface conditions after spraying, and prevents secondary icing.

The invention discloses a method for maintaining a dust-removing and drainage large-porosity asphalt pavement containing a graded crushed stone composite layer, which is characterized in that the pavement structure consists of a lower layer, a middle surface layer, a waterproof and anti-cracking layer, and a dust-removing composite layer in sequence from bottom to top and the upper layer; the dust removal composite layer is to bury the dust removal pipeline in the fixed layer in a grid arrangement in the graded crushed stone fixed layer, and a through hole is opened on the pipe wall of the dust removal pipeline; the present invention is aimed at the maintenance of the road surface The upper layer is backwashed from bottom to top through the through hole on the dust removal pipeline; or the seepage water in the upper layer is sucked out under negative pressure through the through hole on the dust removal pipeline. The invention can effectively restore and maintain the drainage noise reduction and anti-skid ability of the large-pore asphalt pavement, prolong the service life of the pavement, improve the drainage efficiency of the pavement, improve the snow melting efficiency of the road area, reduce the overall temperature of the pavement, and ensure driving safety. Optimize the driving environment.