shaft wall

基本解釋

By grouting behind the shaft wall, improved working conditions, and realized high speed and good quality of shaft construction.
通過壁后注漿封水，做到了干打井，改變了工人的作業(yè)環(huán)境，實(shí)現(xiàn)了優(yōu)質(zhì)高效。
The construction of drilled hole with shaft wall protection by drilling mud belongs to the concealed work, the pile quality influences directly the superstructure security and the building subsidence.
泥漿護(hù)壁鉆孔灌注樁施工屬于隱蔽工程，成樁質(zhì)量的好壞直接影響上層結(jié)構(gòu)的安全和建筑物的沉降。
http://dict.cnki.net
The obtained results can be applied to the design of shaft in mine and the identification of fracture accident of shaft wall.
所得結(jié)果不僅可用于煤礦立井井壁的設(shè)計(jì)，而且還可用于立井井壁破裂原因的分析及相應(yīng)事故的鑒定。

If we managed to dig a several hundred foot vertical shaft and the soil was feeling generous, not collapsing inward and waiting for us to build the wall, the challenge of casting this concrete would still be great.
FORBES: Why Can't We Start Building The World's Deepest Building?