The Tieshan Tunnel of Ba Peng highway is Situated in Dachuan city of Sichuan province with a total length of 2 099 m at 66掳 northwest of the Tieshan valle... LI Zhi guo - 《Journal of Railway Engineering Society》 被引量: 7发表: 2000年 Analysis on Pattern of Surface Subsidence Cause...
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For the sudden and catastrophic event of heavy rainfall in Henan, especially when the city of Zhengzhou suffered severe flooding that led to the loss of many lives, the public’s online attention to the matter was generally high, with the more prominent provinces and cities being Beijing, Guang...