Air cushion type slurry balance shield tunneling machine for solving stagnant discharge problem and construction method of air cushion type slurry balance shield tunneling machine

A mud-water balance and air-cushion technology, which is applied in the field of shield machines, can solve problems such as stagnant discharge, achieve the effects of convenient maintenance, reduce the risk of stagnant discharge, and speed up shield tunneling construction

CN113863947APending Publication Date: 2021-12-31CCTEB INFRASTRUCTURE CONSTR CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-12-31

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Abstract

The invention discloses an air cushion type slurry balance shield tunneling machine for solving the stagnant discharge problem. The air cushion type slurry balance shield tunneling machine comprises a cutter head, a slurry bin and an air cushion bin, wherein the slurry bin is connected with the air cushion bin through a communicating pipe, slurry enters the slurry bin through a slurry bin slurry inlet pipe, the slurry bin is provided with a spiral conveyor, the front end of the spiral conveyor is installed at the bottom of the slurry bin, the rear end of the spiral conveyor is connected with a slag slurry box, a crusher is installed inside the slag slurry box, a slurry bin direct discharge pipe is further installed at the bottom of the slurry bin and staggered with a slag outlet of the spiral conveyor in space, the rear end of the slurry bin direct discharge pipe bypasses the slurry box to be connected with a main slurry discharge pipe, the upper portion of the air cushion bin is connected with an air pressure maintaining system, the lower portion of the air cushion bin supplements slurry through an air cushion bin slurry inlet pipe, and the air cushion bin slurry inlet pipe communicates with the main slurry inlet pipe. The air cushion type slurry balance shield tunneling machine has two tunneling modes, the two tunneling modes both adopt an air cushion balance mode, on-line rapid switching can be achieved, different tunneling modes can be selected according to different stratums, the application range of the slurry balance shield tunneling machine is widened, and the problem of stagnant discharge frequently occurring in a conventional slurry balance shield tunneling machine is solved.
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Description

technical field

[0001] The invention relates to the technical field of shield machines, in particular to an air-cushion mud-water balance shield machine and a construction method for solving the problem of stagnation. Background technique

[0002] In recent years, with more and more tunnel projects across rivers and rivers, the use of mud-water balance shield machines is increasing. At present, when the existing mud-water balance shield machine passes through the broken zone, large pebble strata and mudstone stratum, there is a common phenomenon that the accumulation of mud and water slag blocks cannot be discharged smoothly. Increased shutdown processing time also increases construction risks, which seriously affects the tunneling speed of the shield machine; the current mud-water balance shield machine crusher is located at the bottom of the air cushion chamber, and the air cushion chamber needs to be exhausted during maintenance, which is inconvenient to operate and poses...

Examples

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, it is a schematic diagram of the overall structure of an air-cushion muddy water balance shield machine for solving the problem of stagnation in the present invention, including a cutterhead 1, a muddy water bin 2 and an air cushion bin 5, and the cutterhead 1 is arranged at the front end of the muddy water bin 2, and the muddy water The warehouse 2 and the air cushion warehouse 5 are connected through a communication pipe 3 , and a communication pipe valve 4 is provided in the middle of the communication pipe 3 .

[0024] Sludge bin 2 is fed with pulp by mud bin inlet pipe 7, mud bin inlet pipe 7 is provided with mud bin inlet pipe valve 6, mud bin 2 is equipped with screw conveyor 15, and the front end of screw conveyor 15 is installed in mud bin 2. At the bottom, the front gate 14 of the screw con...