Highway and bridge case - jiuma Expressway-Chengdu DongLanxing Technology Development Co., Ltd.

Highway and bridge case - jiuma Expressway

Release time：2021-11-02 Reading volume： Author：Chengdu DongLanxing Technology Development Co., Ltd.

Project background: the total length of jiuma expressway is 219.085 km. It is the abbreviation of the expressway from markang City, Sichuan Province to Jiuzhi County, Qinghai Province. The total investment is estimated to be 29.75 billion yuan. The project starts from the boundary of Sichuan and Qinghai Province, passes through ABA county and Hongyuan County of Aba Tibetan and Qiang Autonomous Prefecture to Wangjiazhai, markang City, connects the built Huajiu Expressway in the north and the under construction Wenma Expressway in the south. It is an important channel connecting Chengdu Plain Economic Zone, Aba Tibetan and Qiang district and Qinghai Province.

There are 130 bridges on the main line of Jiulong Malaya expressway, with a total length of 52 km, including 11 bridges; There are 20 tunnels with a total length of 40km, including 6 extra long tunnels; The bridge tunnel ratio is 42.1%. The construction of the project is quite difficult, with an average altitude of more than 3000 meters, of which the section from 3500 meters to 4000 meters is 98 kilometers long, accounting for 45% of the whole line.

Solution: East Bluestar supplies the wading pier anti-collision sleeve for the road section in Hongyuan County of the project. The sleeve adopts the structural form of the combination of UHPC performance concrete and reinforcement mesh, which has strong, high toughness, impact resistance and long service life. Fire resistance, green environmental protection, elegant appearance and high construction efficiency provide technical guarantee for the safe operation of jiuma expressway.

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