Vertical Shaft Freezing and Outside Wall Fast Construction Technology in South Airshaft Well of Yuwu Coal Industry

Fast construction for digging shaft and freezing wall was implemented by using advanced equipment which contained skiphoist,center rotary grasp rock machine,automatic batching system,single-slotted hydraulic stripping overall metal template and forced concrete mixer.Advanced blasting technologies with hole,smooth,weak shock,weak rushed,anti-noise nonel were adopted.Rapid construction with high-quality organization achieved good results.