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Reinforcement construction method of shield overhaul well

A construction method and maintenance well technology, which can be applied to wellbore lining, shaft equipment, earthwork drilling and production, etc., and can solve the problems of low strength of shield maintenance wells

Inactive Publication Date: 2020-03-27
中铁十四局集团隧道工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a shield machine repair well reinforcement construction method to solve the technical problem of low strength of the shield machine repair manhole in the prior art

Method used

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  • Reinforcement construction method of shield overhaul well
  • Reinforcement construction method of shield overhaul well
  • Reinforcement construction method of shield overhaul well

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Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] Such as figure 1 As shown, the embodiment of the present invention provides a shield tunnel maintenance well reinforcement construction method, the shield tunnel maintenance well reinforcement construction method includes S100, the underground pipeline in the reinforcement site is detected before construction, so as to avoid damage to the underground pipeline during the construction process . When an underground pipeline is detected, the property rights department should be communicated in time to carry out pipeline relocation. S300, drilling a plurality of boreholes in the reinforcement field. S800 uses double-pipe rotary nozzles to transport high-pressure airflow and cement slurry r...

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Abstract

The invention provides a reinforcement construction method of a shield overhaul well. The reinforcement construction method of the shield overhaul well comprises the following steps of Step 100, performing exploration and inspection on an underground pipeline in a reinforcement place before construction so as to avoid underground pipeline damage in a construction process; Step 300, drilling a plurality of drill holes in the reinforcement place; Step 800, respectively conveying high-pressure airflow and cement slurry by using double-pipe rotary spraying pipes; during rotary spraying grouting, firstly conveying the cement slurry into the drill holes by a grouting pump through a grouting spraying rod; then conveying high-pressure airflow by a high-pressure pump through a gas spraying rod; andafter the grouting is completed, firstly closing the high-pressure pump, and then closing the grouting pump. The reinforcement construction method using the technical scheme provided by the inventioncan solve the technical problem of low intensity of the shield overhaul well in the prior art.

Description

technical field [0001] The invention relates to the technical field of shield machine maintenance well construction, in particular to a reinforcement construction method for shield machine maintenance wells. Background technique [0002] At present, in the prior art, the shield tunnel inspection shaft is used to maintain the cutter head of the shield tunneling machine, so that the shield tunneling machine is always in the best state. If the strength of the shield tunnel is not strong enough, it will affect the construction and maintenance of the shield machine. Contents of the invention [0003] The main purpose of the present invention is to provide a shield machine repair well reinforcement construction method to solve the technical problem of low strength of the shield machine repair manhole in the prior art. [0004] In order to achieve the above object, the present invention provides a reinforcement construction method for a shield maintenance well, including: S100, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/105
Inventor 高洪吉王志康耿本涛李秀东徐传东郭栋赵树才孙伟张曦
Owner 中铁十四局集团隧道工程有限公司
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