The hottest section in Sichuan will be renovated f

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On April 25 last year, the Longquanshan tunnel of Chengdu Chongqing Expressway began to be renovated, which also marked that the Sichuan section of Chengdu Chongqing Expressway entered the overhaul period. According to the plan of Sichuan Provincial Department of transportation, relevant departments will invest billion yuan in the next year to comprehensively renovate the Sichuan section of Chengdu Chongqing Expressway

according to the survey, the pavement diseases of Longquan section, Longquan tunnel, Ziyang Zizhong middle section and Zizhong Neijiang section of Chengdu Chongqing Expressway in Sichuan are serious, and more than 80 kilometers of sections need to be overhauled and renovated, and more than 60 kilometers of sections need to be medium repaired and covered. Last year, the pavement renovation was carried out for the downgoing kilometers of Chengdu Chongqing Expressway. The renovation changed the original gravel base to semi-rigid base, which can basically reach the testing and use of every industry, which not only greatly improves the bearing capacity of the pavement, but also extends the service life of the pavement to about 10 years. At present, the water leakage treatment project of Longquanshan tunnel is progressing smoothly and is expected to end around October. At that time, the gray mosaic of the tunnel vault and side wall will be replaced by brightly colored tiles

the large and medium-sized maintenance and medium-sized maintenance of the pavement cover of the Sichuan section of Chengdu Chongqing road began in early March this year, and the construction period is 7 months. It is planned to end around October. The maintenance sections include: 124 km to 126 km from Ziyang to Zizhong, 200 km to 204 km from Zizhong to Neijiang, which is the so-called "progressive performance" of Polaris. 210 km to 216 km from Neijiang, 132 km to 191 km from Ziyang to Zizhong, From Ziyang to Zizhong, 109 km to 114 km, from Chengdu to Longquan, 37 km to 47 km, and from 22 km to 28 km

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