摘要
本文对冻结法施工的井筒在表土段与基岩的界面附近出现的破坏现象进行了简要分析．提出了可能导致井壁破坏的几种因素．并就预防措施提出了几点建议。
his paper gives a brief analysis of the wrecking appearance occurring near boundary surface between bedrock and topsoil in the pit shaft constructed with freezmg method. It points out a few factors which are likely to cause wrecking on the shaft lining and then makes several suggestions for improvement.
关键词
矿井
冻结法施工
井壁
破坏原因
negative friction
strata slip
structural stress
engineerring quality
