Home Fusong Section of Hegang-Dalian Expressway
Excavated debris from tunnels was processed into blocks to develop ecological protection for the 44,000 ㎡ of roadbed slopes, and further ecological restoration improved the conversion rate for this to over 90%.
In service areas, sewage treatment technologies like biological filters with multimedia and tidal flow artificial wetlands, were combined to meet the discharge standard, which saved significant costs.
Local volcanic ashes and diatomite were blended into asphalt concrete to improve road performance. A total of 220,000 ㎡ of iron ore tailings were used to fill the roadbed, reducing the damage to natural environment.
The lighting control system for energy saving with sensor lights activated by vehicle entry and exit was adopted in tunnels, saving 48% of energy while ensuring the driving safety.
Special plans were designed based on environmental features from Changbai Mountain to focus on the protection of local water environment, animal and plant ecosystems.
Road drainage and slope protection facilities were designed in an environmental friendly way to minimise traces of masonry. Vegetation restoration was applied to collect 300,000 ㎡ of soil on the surface of roads, so as to returning to fields and forests as well as the greening of roadbed slopes.
Through the cascade protection, 50,000 native trees were preserved at the primary stage of construction.
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CCCC Highway Consultants Co., Ltd.
Jilin Provincial High Class Highway Construction Bureau