Water-rich stratum shield tunneling muck collecting and discharging device and collecting and discharging method

Abstract

The invention discloses a water-rich stratum shield tunneling muck collecting and discharging device and collecting and discharging method, and belongs to the technical field of tunnel shield construction. The device can solve the problems that the efficiency of manual regular cleaning of silt and water flow accumulated at the bottom of a shield tunneling machine is extremely low, and the shield construction efficiency is seriously restricted. The collecting and discharging device comprises a collecting box and an alarm device; the collecting box is connected with the bottom of a belt conveyor through a fixator; a drainage hole is formed in the bottom of one side of the collecting box and connected with a drainage pipe; a drainage valve and a slurry pump are arranged on the drainage pipe; a motor is arranged on the outer side of the other end of the collecting box; an output shaft of the motor is connected with a stirring rod; stirring blades are arranged on the stirring rod; two liquid inductive sensors are arranged on the inner side wall of the collecting box; the output ends of the liquid inductive sensors are connected with a connecting line I; the input end of the alarm device is connected with a connecting line II; and the connecting line I is connected with the connecting line II. According to the water-rich stratum shield tunneling muck collecting and discharging device and collecting and discharging method, after muck is stirred through a muck stirring device, the muck can be directly discharged without muck separation, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of tunnel shield construction, and in particular relates to a device for collecting and discharging dregs from shield tunneling in water-rich strata and a method for collecting and discharging them. Background technique [0002] In recent years, with the great development of domestic urban rail transit, the shield method has been widely used in rail construction because of its advantages of safety, high efficiency and wide adaptability. When the earth pressure balance shield passes through the water-rich formation, due to the high water content in the formation, the shield machine is prone to gushing during the crossing process. The gushing generated falls from the bottom of the belt conveyor to the bottom of the shield machine, and a large amount of sediment and water flow It often leads to the complete submersion of the segment conveyor and the failure of normal excavation. Due to the limited space, the ef...

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Problems solved by technology

[0005] Aiming at the problem that the earth pressure balance shield tunnels through the water-rich stratum, the sediment and water flow efficiency accumulated at the bottom of the shield machine is extremely low, which seriously restricts the construction efficiency of the shield machine, and provides a shield tunneling dregs in the water-rich stratum Collection and discharge device and collection and discharge method

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