Construction method for ultra-deep vertical shaft in limited space

Abstract

The invention discloses a construction method for an ultra-deep vertical shaft in limited space a limited space. The construction method comprises the following steps: S1, a preset vertical shaft position is determined, and surrounding rock in the range of the preset vertical shaft is pre-destroyed by drilling a hole through a rotary excavating drill; S2, a transverse channel is excavated at the bottom of the preset vertical shaft position; S3, a muck leakage hole is drilled in the preset vertical shaft, and the lower end of the muck leakage hole communicates with the transverse channel; S4, the vertical shaft is excavated, and muck generated by excavation is conveyed into the transverse channel through the muck leakage hole till the vertical shaft is excavated to the base; and S5, a muck conveying vehicle enters the transverse channel, and outwards conveys the muck conveyed into the transverse channel to a specified storage point. By optimizing the excavation mode and the muck transportation mode, the adverse effect that the muck cannot be effectively discharged due to the narrow construction site and the complex external environment is solved, and the construction efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for an ultra-deep shaft in a limited space. Background technique [0002] During the construction of the shaft, the slag discharge from the shaft mainly adopts the traditional method of lifting the slag from the surface by gantry cranes, truss cranes and other equipment. The bottom is lifted to the surface and then dumped to the designated position. During the hoisting process, there is a risk that the stones in the bucket will fall and cause businessmen. The hoisting process is time-consuming, and the amount of hoisted muck is limited by the maximum lifting weight of the hoisting equipment. [0003] Moreover, more and more shaft exits are set in dense urban areas, the construction site is limited, and the amount of temporary slag piles is small, which is increasingly unable to meet the requirements of efficient construction, and the muck stack...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a construction method for an ultra-deep shaft in a limited space, aiming at solving the problems commonly existing in the construction of an ultra-deep shaft in a limited space. The construction progress is slow, the safety risk of slag lifting is high, the temporary slag pile on the ground is small, and slag transportation is a problem of noise nuisance. To improve the production progress, make full use of the advantages of the connection between the shaft and the bottom passage, and save the ground space by not transporting slag from the ground

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