As the construction progressed in the early hours of the night, in order to avoid the noise, the construction workers will drill into a special box.
The new poles resistant to 12 wind <br> <br> the Inner Ring Road in Puxi section opened to traffic in December 1994, after nearly 20 years of operation, the overhead lights also show varying degrees of weakness or even "disease" .
Previously, it has been found through investigation that the surface of the inner pole of the inner ring is rusted due to oxidation. The light transmissive cover of the lamp is degraded due to aging, and the surface of the lamp reflector is oxidized and discolored, and the reflection performance is reduced, which not only affects the road. The level of lighting is also wasted on lighting.
At the same time, the foundation of the lower part of the street lamp and the bolts, nuts and other connecting parts between the lamp post and the foundation are deteriorated, corroded or damaged, resulting in a safety hazard of overturning and collapse of the street lamp.
Yesterday, passing through the inner ring of Hutai intersection, it was found that several poles had been removed within a range of about 100 meters. Shanghai Chengjian Luqiao Group said that the section of Hutai Road was the section that was rebuilt on August 11.
The new street lights will be improved and improved mainly in terms of safety, function and energy saving. The basic part of the streetlight will be repaired or updated to increase the strength, and the replacement of the new pole will achieve a 12-level wind impact.
At present, the street light source on the inner ring elevated is a high-pressure sodium lamp with a power of 250 watts per turn. The new street lamp will use LED energy-saving light sources and lamps with low power consumption, high luminous efficiency and long life. The energy-saving efficiency can reach 50. %.
Change the lights from 12 o'clock in the evening to 5 o'clock in the morning. "At present, the construction is only allowed to work in the period from 12 o'clock in the middle of the night to 5 o'clock in the morning." The relevant person in charge of the above group said, "It is expected that all replacements will take more than a year."
Taking into account the impact of nighttime construction noise, the “anti-collision wall construction safety protection device†was adopted during the construction. “The shape of this device is a box, and the construction personnel work inside to reduce the influence of noise on the surrounding area. Especially when the base of the street lamp is cut off, the noise will be relatively large, and at the same time, the gravel falling can be prevented from falling. Prevent the spread of dust." Because the cabinet is relatively hot, the construction personnel need to rotate once an hour.
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