Inclined shaft tunnel full-section mechanical tunneling device and construction method

A full-section, mechanical technology, applied in tunnels, shaft equipment, earthwork drilling and mining, etc., can solve the problems that cannot meet the needs of inclined shaft tunnel excavation, and achieve high-precision one-time penetration construction, small deviation correction error, and convenient slag discharge Effect

Pending Publication Date: 2022-06-03
CHINA GEZHOUBA GROUP NO 5 ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a full-section mechanical excavation device and construction method for an inclined shaft tunnel, which can solve the technical problem in the prior art that the slag discharge at the rear of the tunnel full-section mechanical roadheader cannot meet the excavation requirements of the inclined shaft tunnel, It is convenient for slag discharge and has a simple structure, which can realize high-quality, high-efficiency and safe excavation of long inclined shafts

Method used

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  • Inclined shaft tunnel full-section mechanical tunneling device and construction method
  • Inclined shaft tunnel full-section mechanical tunneling device and construction method
  • Inclined shaft tunnel full-section mechanical tunneling device and construction method

Examples

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Effect test

Embodiment 1

[0025] An inner support 5 is arranged in the support ring 4 , and a feeding oil cylinder 11 is arranged between the inner support 5 and the drill bit 1 , and the feeding oil cylinder 11 is used to push the drill bit 1 for feeding. With this structure, while the full-section mechanical excavation device 100 is excavating, the driving inclination of the full-section mechanical excavation device 100 can also be adjusted online according to the design angle of the inclined shaft tunnel 31 .

[0026] The preferred solution is figure 1 Among them, a seal 3 is provided between the support ring 4 and the drill bit 1, and the outer diameter of the drill bit 1 is larger than that of the support ring 4; this structure prevents drilling slag from entering the support ring 4 and affects the work of the movable parts.

[0027] The hydraulic motor 23 and the transmission sleeve 33 are connected in a relatively sliding manner that can transmit torque. For example, they are connected in a spl...

Embodiment 2

[0036] The support ring 4 is connected with the drill bit system, and the support ring 4 includes a jacking section steel pipe 9 that can be increased or decreased to adjust the length of the support ring 4; the jacking section steel pipe 9 and the support ring 4 are connected by flanges and bolts. The outer diameter of the drill bit 1 is larger than the outer diameter of the support ring 4 . Preferably, the outer diameter of the drill bit 1 is larger than the outer diameter of the connecting flange of the support ring 4 by about 2 cm. The jacking cylinder 15 is used to jack the support ring 4 and transmit the jacking force to the drill bit system. Further preferred solutions such as image 3 , 8 , the structure of the drill bit system is as follows: the drill bit 1 and the support ring 4 are slidingly and sealedly connected, and a seal 3 is provided at the connection position to prevent drill cuttings from entering the support ring 4, and the tail of the drill bit 1 is prov...

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Abstract

The invention provides an inclined shaft tunnel full-section mechanical tunneling device and a construction method. The inclined shaft tunnel full-section mechanical tunneling device comprises a supporting ring, the supporting ring is movably connected with a drill bit in a sleeving mode, a transmission sleeve is arranged at the tail of the drill bit, and a hydraulic motor is arranged in the supporting ring, connected with the transmission sleeve and used for driving the transmission sleeve to rotate; a plurality of deviation rectifying oil cylinders are further arranged on the side wall of the supporting ring, and the axes of the deviation rectifying oil cylinders are in the radial direction of the supporting ring; an inner support is arranged in the supporting ring, a feeding oil cylinder is arranged between the inner support and the drill bit, and the feeding oil cylinder is used for pushing the drill bit to feed. The structure is simplified, the self weight is reduced, tunneling of the inclined shaft tunnel is conveniently achieved, the technical problem that in the prior art, deslagging of the rear portion of a tunnel full-face mechanical tunneling machine cannot meet the requirement for tunneling of the inclined shaft tunnel is solved through the construction method, and deslagging is convenient. The operation of real-time deviation rectification is convenient, the tunneling precision is high, and high-precision one-time through construction of the long inclined shaft is achieved.

Description

technical field [0001] The invention relates to the field of inclined shaft tunnel construction, in particular to a full-section mechanical excavation device and a construction method for an inclined shaft tunnel. Background technique [0002] The diversion tunnels for power generation in hydropower projects and the ventilation tunnels of some long-distance traffic tunnels are designed with inclined shaft structures. In particular, pumped-storage power stations are selected in mountainous areas with large height differences. In order to shorten the length of the water delivery tunnels, underground water delivery tunnels with large inclinations are generally set up. For the construction of inclined shaft tunnels, the current stage is to use the riser drilling rigs to build slag wells. However, the general drilling length of a raise drilling rig for setting a slag well is about 300-400 meters. Considering economic factors, artificial drilling and blasting are used in the expa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/02E21D9/11E21D3/00E21F13/04
CPCE21D9/02E21D9/11E21D9/1093E21D9/1086E21D3/00E21F13/04Y02E10/20
Inventor 吕芝林夏云邹吉龙汪少雄张涛骆大新
Owner CHINA GEZHOUBA GROUP NO 5 ENG
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