Novel vertical shaft drilling rig with pilot hole excavation function

Abstract

The invention provides a novel vertical shaft drilling rig with a pilot hole excavation function. The novel vertical shaft drilling rig includes a central upright, the front end of the central uprightis connected to a pilot hole propulsion system, the pilot hole propulsion system is connected to a pilot hole excavation system, the pilot hole excavation system is connected with a pilot hole support system, and a middle section of the central upright is provided with a final well excavation system, a final well propulsion system and a final well support system. The novel vertical shaft drillingrig has the beneficial effects that the novel vertical shaft drilling rig can be applied to a soil layer, a broken rock layer and a hard rock layer, and is wide geological adaptability, the novel vertical shaft drilling rig is suitable for excavation of vertical shafts with the diameter of 10 m and above and the depth up to 1000 m, excavation, slagging and supporting are carried out synchronously, and the construction efficiency is high; the novel vertical shaft drilling rig has the pilot hole excavation function, hole piloting and excavation expansion are carried out simultaneously, and completion of a well is completed at a time; the well completion accuracy is high; remote control and fully automated operation are realized, the degree of mechanization is high, fewer underground construction personnel is needed, and the construction risk is reduced.

Description

technical field [0001] The invention relates to a shaft drilling machine, in particular to a novel shaft drilling machine with a pilot hole excavation function. Background technique [0002] The vertical shaft is a well-shaped pipeline with an upright wall. Its wall is steep and almost vertical. It is widely used in water conservancy and hydropower projects for water intake, water diversion, ventilation, slag removal, and gas supply. It has a small footprint and interferes with surrounding construction. Less features. However, the shaft construction space is small, the construction period is long, there are many climbing and side operations, and the traffic is inconvenient, which leads to prominent safety risks in shaft construction. [0003] When the section of the shaft is large, the propulsion force and torque required to complete the well at one time by the mechanical method are very large, and the rock breaking effect is not ideal because there is no free face when exc...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a new type of vertical shaft drilling rig with a pilot hole excavation function, which solves the problem of unsatisfactory rock breaking effect when a vertical shaft is completed at one time, and can realize the simultaneous function of pilot hole excavation and hole expansion, and can detect formations in advance, expand The empty surface has been formed during excavation, which improves the efficiency of excavation expansion and reduces the construction period; and the pilot hole can be used to collect slag and guide, effectively solving the problems of advanced detection, excavation, slag discharge, and verticality of well completion

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