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Mud Replacement Method for Slurry Tank and Air Bubble Chamber of Slurry Shield

A mud-water shield and mud-water cabin technology, which is applied in earth square drilling, mining equipment, tunnels, etc., can solve the problems of poor operation visualization and low efficiency, and achieve the effect of stable cutting pressure

Active Publication Date: 2016-08-17
CCCC TUNNEL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires divers to be equipped with safety suits, breathing helmets and other safety protection devices. The efficiency is not high, and the operation visualization is poor.

Method used

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Experimental program
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Embodiment Construction

[0033] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0034] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein Explanation.

[0035] A mud replacement method for mud tank and air bubble tank of mud-water shield , Including the process of lowering the liqu...

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PUM

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Abstract

The invention discloses a method for replacing mud in a mud tank and an air bubble tank of a mud shield. When lowering the liquid level of the mud tank, the steps are as follows: a. checking the air supply system in the cabin; b. operating the mud water circulation system; c. opening Connecting valve; d. Start to drop the liquid level; e. Manage the pressure of the air bubble chamber; f. Control the liquid level of the mud tank; g. End the liquid level drop; The following steps: i. Receive the command to raise the liquid level; j. Check the air supply system in the cabin; k. Run the muddy water circulation system; l. Close the communication valve and open the exhaust valve; m. Start to raise the liquid level; n. Control the bubble chamber Liquid level; o. Manage the pressure of the bubble chamber; p. Close the exhaust valve; q. End the rising liquid level; By adopting the above-mentioned technical scheme, the problem of mud replacement in the mud tank with pressurization in the saturated zone is solved, the pressure of the cutout is stable during the mud replacement process, and the construction progresses smoothly.

Description

technical field [0001] The invention relates to a method for replacing mud in a mud tank and an air bubble tank of a mud-water shield, belonging to the field of underground engineering. Background technique [0002] With the rapid development of domestic rail transit construction, large-diameter, long-distance cross-river and sea-crossing tunnel projects are increasing day by day, and the difficulty of shield tunneling construction is gradually increasing. Especially when dealing with shield tunneling operations on complex geological sections, tool replacement is unavoidable during construction. There are many methods for conventional opening operations, such as atmospheric opening after geological reinforcement of the excavation surface, atmospheric opening of vertical shafts on the ground, submerged opening under pressure, etc. In the conventional opening operation, there are unfavorable conditions such as poor safety and reliability and restricted operating environment, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00
CPCE21D9/06
Inventor 田毅姚占虎夏鹏举赵小鹏陈郁忽慧涛
Owner CCCC TUNNEL ENG