Application of Seven-step Flowing Working Method in yellow soil tunnel construction;

After analyzing the practical production types,a new concept identical parallel flow shop scheduling problem(IFSP) is proposed,which is the integration of identical parallel machine scheduling and flow shop scheduling.

the relationship of parallel operations of excavation and bolting integration is researched.

However, in order to decrease the construction time as much as possible, this paper put forword a parallel operation method in which the above three steps can be done simultaneously.

The paper introduces the construction technology of adopting artificial and mechanical shaft sinking as well as a parallel operations in concrete pouring construction with whole sliding-mode to replace the traditional way of the sole artificial construction in the past,thus realizing improvement of rapid construction craft.

The parallel work of every branch engineering on the watercourse renovating engineering has importance significance for saving invest and shortening time for a project.