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Construction method for solving stop rotation of shield cutter head by grouting reinforcement and internal support method

A technology of grouting reinforcement and internal support, used in earth-moving drilling, mining equipment, tunnels, etc.

Inactive Publication Date: 2020-03-27
SHENYANG MUNICIPAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The steps of grouting reinforcement and internal support method to solve the stalling of the shield cutter head are as follows:

Method used

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  • Construction method for solving stop rotation of shield cutter head by grouting reinforcement and internal support method
  • Construction method for solving stop rotation of shield cutter head by grouting reinforcement and internal support method

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Embodiment Construction

[0046] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0047] The present invention adopts the chemical slurry prepared by phosphoric acid and water glass to chemically reinforce the upper part and front part of the shield machine cutterhead, and carry out precipitation treatment around the soil before reinforcement, so as to ensure that the horizontal plane is within 1m below the lowest point of the shield cutterhead. After precipitation, the soil is reinforced with chemical slurry according to the design range. After the soil is strengthened, the soil chamber is released to the inside of the shield machine, the door of the soil chamber is opened, and the soil inside the soil chamber is cleaned. Clean up the soil body and use section steel to weld the spokes of the shield cutterhead at the exposed...

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Abstract

The invention relates to the technical field of civil engineering, in particular to a construction method for solving stop rotation of a shield cutter head by grouting reinforcement and an internal support method. The method is suitable for fault treatment of the locking of a cutter head of a earth pressure balance shield machine and the construction of the similar shield construction which needsto open a cabin and enter the interior of an earth cabin for fault detection treatment. The construction method for solving stop rotation of the shield cutter head by the grouting reinforcement and the internal support method is characterized by comprising the following steps of 1, chemical grout grouting reinforcement soil body construction and 2, construction scheme for inspection and treatmentof personnel entering cabin. According to the construction method for solving stop rotation of the shield cutter head by the grouting reinforcement and the internal support method, the grouting reinforcement and the internal support method is adopted to enter the inner side of the cutter head, a traditional construction shaft method is replaced, construction enclosing piles, a support system and earthwork excavation are avoided, the construction period is effectively saved, and the material and mechanical costs are reduced.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a construction method of grouting reinforcement and internal support method to solve the stalling of the shield cutter head, and is applicable to the "locking" fault treatment of the cutter head of the earth pressure balance shield machine, and similar shield construction needs Open the cabin and enter the interior of the soil cabin for troubleshooting and processing. Background technique [0002] With the acceleration of urbanization in our country, the phenomenon of traffic congestion is becoming more and more serious. In order to alleviate the increasing traffic pressure, a large number of subway construction projects have been carried out all over the country. Shield construction technology has the characteristics of fast construction speed, low cost, and high safety factor, and has been widely used in urban rail transit. With the wide application of shield tunneli...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D9/08
CPCE21D9/06E21D9/0607E21D9/08
Inventor 仇召侠杜利君代蛟龙陈志远杨苓耿红霞代永磊孙辉
Owner SHENYANG MUNICIPAL GROUP
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