The design and construction plan of the bottom section of No. 8 inclined shaft (with trackless transportation system) of Taihangshan tunnel on Shijiazhuang～Taiyuan passengerdedicated railway is optimized according to the actual conditions of the jot site so as to improve the vehicle flowing and the transportation efficiency and to speed up the construction progress. Due to the complex gypsum breccia ground at the junction between the inclined shaft and the main tunnel, roof ripping construction technology is adopted and such countermeasures as small advance rate, weak blasting and strong reinforcement are taken, which ensures the safety of the roof ripping construction and achieves expected effects. The paper can provide reference for the design and construction of similar works in the future.