Cui Guangyao, Qi Jiasuo, Wang Daoyuan
School of Civil Engineering, North China University of Technology, Beijing, China.
Department of Civil Engineering, Hebei Jiaotong Vocational and Technical College, Shijiazhuang, China.
Sci Prog. 2020 Apr-Jun;103(2):36850420923167. doi: 10.1177/0036850420923167.
Field studies by squeezing rock deformation have shown that large deformation slips can occurs in tunnels in squeezing rock, the tunnels may be partially or completely broken. This article proposed two schemes for controlling the deformation of squeezing rock, which are "resistance combine release" Scheme 1 and "strong support" Scheme 2, the deformation characteristics and deformation mechanism of squeezing rock is researched by Zhongyi Tunnel. The results show that Scheme 2 is superior to Scheme 1 in terms of deformation rate, cumulative deformation, and monthly construction footage. Research results can provide a reference for similar projects.
通过挤压岩石变形的现场研究表明，在挤压性岩体中的隧道可能会发生大变形滑动，隧道可能会部分或完全破坏。本文提出了两种控制挤压性岩体变形的方案，即“抗 - 放结合”方案一和“强支护”方案二，并以中义隧道为工程背景，研究了挤压性岩体的变形特征和变形机理。结果表明，方案二在变形速率、累积变形量和月施工进尺方面均优于方案一。研究成果可为类似工程提供参考。
