As a main road which connects Pudong & Puxi and across Huangpu River, Shanghai Yanan East Road Tunnel is consisted of southward and northward tunnel. It is four lanes wide. Total length is 2261 meters, and there are 1476 meters across Huangpu River. Each lane is 7.5 meters wide, 4.5 meters high, originally for two-way traffic with planned traffic flow(1000 vehicles per hour). Shanghai Yanan East Road Tunnel is located in the core region of downtown area. It not only connects the Bund with Lujiazui, but also connects heart of Pudong with heart of Puxi via Yanan Rd. Viaduct and Century Avenue. In conclusion, Shanghai Yanan East Road Tunnel plays an important role in alleviating the traffic jam in Small Lujiazui Area.
Overhaul of Shanghai Yanan East Road Tunnel began at midnight of Mar.14th, 2015. Because the tunnel built long time ago, the overhaul must produce amounts of dust. It is much harmful for health of construction workers and air quality. Therefore, three kinds of measures have been take to remove the dust. Firstly, spray curtain was utilized to remove the dust from the contact surface. Secondly, electrostatic precipitator was utilized to remove the dust in spread path. Finally, bucket was utilized to remove the dust in interface between dust and external environment.
Foshan Nanfang-RITCO Energy Clean Technology Co., Ltd. supplied 8 sets of movable electrostatic precipitator for the dust removal of this overhaul. After installation, the dust stopped blowing in the tunnel. The workers stopped coughing. Movable electrostatic precipitators not only protect the occupational safety and health of the construction workers, but also prevent dust spread to the air.