摘要
冻土爆破施工，既要提高施工速度，又要保证冻结管的安全。本文给出了冻结管的破坏准则即爆破震动破坏准则、强度准则和变形破坏准则。
On the condition of the frozen blasting in the shaft, not only the sinking velocity is raised but also the safety of the freezing pipe is ensured. Criterions of the failure, the strength and the displacement are given in this paper. The values of the criterions can forecast the safety of the freezing pipe.
关键词
破坏准则
冻结管
爆破
冻土
工程施工
failure criterion
freezing pipe
blasting frozen soils
