Demolition waste recovering and using method of earth pressure balance shield machine

An earth pressure balance and shield machine technology, which is applied in the field of shield machines, can solve the problems of difficulty in establishing pressure balance on the excavation surface, uncontrolled formation settlement, and poor particle gradation, so as to improve the particle gradation and enhance the The effect of self-stability and pressure balance

Active Publication Date: 2016-03-23
CHINA RAILWAY CONSTR HEAVY IND
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Problems solved by technology

However, in the water-rich sand and pebble layer, due to poor particle gradation, there are gaps between particles, and the compressed air injected by the earth pressure balance shield machine to maintain the pressure balance of the excav...

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  • Demolition waste recovering and using method of earth pressure balance shield machine

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be const...

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Abstract

The invention discloses a demolition waste recovering and using method of an earth pressure balance shield machine. The earth pressure balance shield machine comprises a cutter head and a digging cabin arranged behind the cutter head. The demolition waste recovering and using method comprises the following steps of 1, starting the cutter head for digging the stratum, and conveying demolition wastes obtained through digging to the digging cabin; 2, sieving the demolition wastes in the digging cabin to obtain first demolition wastes and second demolition wastes, wherein the grain diameter of the first demolition wastes is greater than the grain diameter of the second demolition wastes; and 3, stirring the second demolition wastes with slurry, and conveying the mixture back into the digging cabin. According to the demolition waste recovering and using method provided by the invention, the sieved second demolition wastes and the slurry are stirred and mixed; the mixture is conveyed back into the digging cabin again; and a mud film is formed on the digging surface by using the rotation of the cutter head. Gaps among the particles in the stratum can be filled; the particle gradation condition of the stratum is improved, so that the stratum settlement in the digging process can be effectively controlled; and the self stability of the digging surface can be enhanced.

Description

technical field [0001] The invention relates to the technical field of shield machines, in particular to a method for recycling dregs of an earth pressure balance shield machine. Background technique [0002] In the related technology, when the earth pressure balance shield machine is excavating normally, the pressure holding system injects compressed air into the excavation cabin, and by controlling the pressure of the compressed air and the earth pressure in the excavation cabin, the pressure on the excavation surface is balanced to realize The excavation face is stable and the ground subsidence is controlled. However, in the water-rich sand and pebble layer, due to the poor particle gradation, there are gaps between the particles, and the compressed air injected by the earth pressure balance shield machine to maintain the pressure balance of the excavation surface will pass through the gaps between the particles. It is difficult to establish the pressure balance of the e...

Claims

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Application Information

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IPC IPC(8): E21D9/06
CPCE21D9/06
Inventor 程永亮彭正阳张社军杨杰范瑞强张帅坤
Owner CHINA RAILWAY CONSTR HEAVY IND
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