一、冻结法开凿深井的支护新技术尽管滑动井壁具有明显的优越性,但目前运用冻结法掘进深井筒时,仍然只采用岩块砌碹井壁.根据笔者1978年的提议,在250—800米的大冻结深度开凿立井时,采用了永久性滑动井壁.使用这种新的“奥古斯特·维托利亚井壁”,其外井壁的承载能力、透水性和 First, the freezing method of drilling deep excavation of new technologies Although the sliding well wall has obvious advantages, but the use of freezing method for deep wellbores, the only use of rock block wall.According to the author’s proposal in 1978, at 250 With a large frozen depth of -800 m, a permanent sliding borehole is used for the vertical well. Using this new “Auguste Vittoria borehole”, the bearing capacity of the outer borehole wall, water permeability and