Slurry door for slurry shield tunneling machine and filling system of same
A filling system and mud door technology, which is used in mining equipment, earth-moving, tunnels, etc., can solve the problems of unstable sealing effect and low inflation pressure of mud door, so as to expand the selection range and allowable filling pressure range, improve the Convenience, the effect of improving the pressure bearing capacity
Active Publication Date: 2015-06-17
CHINA RAILWAY CONSTR HEAVY IND
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Problems solved by technology
[0008] The purpose of the present invention is to provide a mud door for a mud-water shield machine to solve the problems of low inflation pressure and unstable sealing effect of the currently used mud door
Method used
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Embodiment Construction
[0028] The specific implementation manner of the present invention will be described in further detail below through the description of the embodiments with reference to the accompanying drawings.
[0029] Figures 2 to 3 A schematic diagram of a mud door 100 for a slurry shield machine according to the present invention is shown. In the illustrated state, the push-pull cylinder 25 of the mud door 100 is in a contracted state, and the mud door 100 is in an unused state at this time, that is, the mud door 100 does not close the mud inlet 17 .
[0030] Such as image 3 As shown, the mud door 100 includes a door panel 7 , a pressure-bearing partition 11 , and a guide block for installing the door panel 7 on the pressure-bearing partition 11 . In the illustrated embodiment, the guide block is a combined guide block, including a first guide block 9 and a second guide block 10 welded on the pressure-bearing partition 11 . The first guide block 9 is fixed on the second guide block...
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The invention provides a slurry door for a slurry shield tunneling machine, and further provides a filling system used for the slurry door. The slurry door comprises a door plate, a pressure-bearing baffle plate and a guide block used for installing the door plate on the pressure-bearing baffle plate. A groove accommodating a sealing piece is formed in a first surface, facing the pressure-bearing baffle plate, of the door plate, wherein the sealing piece comprises a central body, at least two outer side bodies and at least two radial connecting arms connecting the outer side bodies and the center body. The outer side bodies are fixed in the groove through a compressing piece fixed on the first surface of the door plate, and accordingly a sealed cavity is formed between the sealing piece and the groove. When pressure media are filled into the sealed cavity, the central body moves towards the pressure-bearing baffle plate under the action of pressure until a sealing surface of the central body is tightly attached to the pressure-bearing baffle plate.
Description
technical field [0001] The invention belongs to the technical field of shield tunneling machines, and in particular relates to a mud door for a slurry-type shield tunneling machine. The invention also relates to a filling system for a mud door as described above. Background technique [0002] The shield tunneling method has many advantages such as speed, safety, and little impact on ground buildings. It has become the first choice for urban subway tunnels, cross-river and sea-crossing tunnels, and other underground engineering constructions that strictly control construction safety and ground settlement. According to the different methods of balancing the tunnel face in shield construction, it can be divided into earth pressure balance shield, mud-water balance shield and open shield. Among them, the mud-water balance shield uses mud to balance the water and soil pressure from the face, and it divides the mud compartment into a soil compartment (front compartment) and an ai...
Claims
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IPC IPC(8): E21D9/06E06B7/22
Inventor 刘飞香程永亮郑大桥麻成标唐崇茂
Owner CHINA RAILWAY CONSTR HEAVY IND