A tbm construction device for weak and broken surrounding rock

Abstract

The invention discloses a weak-broken surrounding rock section TBM construction device. The weak-broken surrounding rock section TBM construction device comprises a cutter disc, a cutter disc shelf and a high-frequency vibrator. The cutter disc is installed on the cutter disc shelf, the cutter disc shelf is connected with two transmission gears through cutter disc gears in an occlusion mode, and the transmission gears are connected with drive hydraulic motors through transmissions which are each composed of three stages of variable gears; the two drive hydraulic motors synchronously operate through a hydraulic system, and the cutter disc comprises an outer cutter disc body and an inner cutter disc body; the outer cutter disc body is connected with the transmission gears through the cutter disc shelf, and the inner cutter disc body is installed in the middle of the outer cutter disc body; and the inner cutter disc body is connected with a transmission shaft through a coupling, the transmission shaft is connected with a hydraulic breaking machine, and the cutter disc shelf is provided with the high-frequency vibrator. The weak-broken surrounding rock section TBM construction device has the advantages that the breaking requirements are met while efficient propelling is achieved through structural design of the inner cutter disc body and the outer cutter disc body, the punning effect is achieved while high-frequency vibrator propelling is conducted through high-frequency extruding and vibration, self stability is improved, and self-stabilizing time is prolonged, and a good construction environment for subsequent construction is created.

Description

technical field [0001] The invention relates to a shield machine device, in particular to a TBM construction device for weak and broken surrounding rock sections. Background technique [0002] In recent years, in order to effectively solve urban traffic contradictions and environmental protection problems and give full play to urban functions, advanced shield construction technology has been widely used in the construction of underground projects such as subways and tunnels. Introduced shield boring machine and special cutting tool spare parts. Weak surrounding rock refers to surrounding rock with weak rock quality, low bearing capacity, well-developed joints and gaps, and broken structure. This kind of rock mass is unstable, especially in buried sections where TBM construction is particularly prone to collapse and roof fall. The main performance is poor self-stability. Self-stabilization time, easy to collapse, the existing shield machine equipment cannot meet the needs of...

AI Technical Summary

Problems solved by technology

Weak surrounding rock refers to surrounding rock with weak rock quality, low bearing capacity, well-developed joints and gaps, and broken structure. This kind of rock mass is unstable, especially in buried sections where TBM construction is particularly prone to collapse and roof fall. The main performance is poor self-stability. Self-stabilization time, easy to collapse, the existing shield machine equipment cannot meet the needs of TBM construction in weak and broken surrounding rock areas

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