Nenjiang shield project is an important control project of the north section of China and Russia east line,its launching shaft is located in Zili village, Maoxing Town, Zhaoyuan County, Daqing City, Heilongjiang Province. The receiving shaft is located in Nenjiang village, Qianguo County, Songyuan City, Jilin Province. The shield tunnel is 1224.7m long and its inner diameter is 3.08m. The main structure of the crossing geologies are silty clays, silts, clays and other complex structures.
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