Abstract While it is frequently necessary, controlling for primary support deformation of a mined tunnel is risky and difficult. Based on typical cases of construction, monitoring, and supervising, this paper analyzes the causes of primary support deformation and discuses control measures. The key points concering deformation control are geology, design, monitoring and construction.
Keywords ：
Mined tunnel Primary support structure Deformation
Abstract ：
While it is frequently necessary, controlling for primary support deformation of a mined tunnel is risky and difficult. Based on typical cases of construction, monitoring, and supervising, this paper analyzes the causes of primary support deformation and discuses control measures. The key points concering deformation control are geology, design, monitoring and construction.
Keywords ：
Mined tunnel Primary support structure Deformation
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2012, Vol. 49 