Full-face shaft tunnel boring machine system

A full-face shaft tunnel boring machine system, comprising:

• a tunnel boring machine cutterhead device for tunneling downwards in a shaft;
• a full-hydraulic formwork device for supporting and walling in a wellbore;
• and
• an upper muck-discharge system for vertically conveying rock mucks generated by tunneling;
• wherein
• the tunnel boring machine cutterhead device comprises, in vertical order from top to bottom and fixedly connected so as to form an integrated structure, a vertical guide frame, a cutter-expanded boring head and an advanced cutterhead;
• the vertical guide frame is a hollow cylindrical structure and driven to rotate around an axis of the vertical guide frame by a power mechanism, and an outer wall of the vertical guide frame is provided with multiple sets of first guide rollers;
• the cutter-expanded boring head is a hollow cone-shaped structure, and an outer wall of the cutter-expanded boring head is provided with multiple sets of first hobbing cutters and first scrapers, first muck outlets and water holes;
• the advanced cutterhead is a hollow cylindrical structure, a circumferential surface of an outer wall of the advanced cutterhead is provided with multiple sets of second guide rollers, and a bottom of the advanced cutterhead is provided with multiple sets of second hobbing cutters and second scrapers, second muck outlets and blowholes water holes;
• a primary muck-discharge pump is arranged in an inner cavity of the advanced cutterhead;
• the full-hydraulic formwork device comprises a first formwork, a second formwork, a formwork support structure, and formwork guide and moving assemblies;
• the formwork support structure is a cylindrical, steel, composite structure and suspended on a lower part of a hanging scaffold that is on an upper part of the formwork support structure;
• the formwork guide and moving assemblies are divided into four groups and symmetrically disposed in pairs, one end of each of two groups is connected to the formwork support structure while the other end is connected to the second formwork, and one end of each of the other two groups is connected to the formwork support structure while the other end is connected to the first formwork;
• the formwork guide and moving assemblies are capable of stretching in order to achieve a radial horizontal displacement of the formwork in the wellbore;
• the upper muck-discharge system comprises a primary muck-discharge unit, a secondary muck-discharge unit and a control system;
• the primary muck-discharge unit comprises a primary muck-discharge pump and a primary muck-discharge pipeline, the primary muck-discharge pump is arranged in the inner cavity of the advanced cutterhead, and multi-scale rock mucks and water are discharged upwards to the secondary muck-discharge unit through the primary muck-discharge pipeline;
• the secondary muck-discharge unit comprises water-muck separating equipment, crushing equipment, grinding equipment, a muck slurry bin and a secondary muck-discharge pump which are arranged in a vertical order from top to bottom;
• an inlet of the water-muck separating equipment communicates with the primary muck-discharge pipeline, a rock muck outlet communicates to the crushing equipment, and a water outlet communicates to the muck slurry bin;
• an inlet of the grinding equipment communicates with the rock muck outlet of the water-muck separating equipment, and an outlet of the grinding equipment communicates with the muck slurry bin;
• and
• a muck slurry in the muck slurry bin is pumped to the ground through the secondary muck-discharge pump.