A grouting method for vibration isolation and noise reduction on the outside of subway tunnel segments

A tunnel segment and vibration isolation technology, applied in tunnels, tunnel linings, underground chambers, etc., to achieve the effects of simple sealing, reasonable cost and convenient transportation

Active Publication Date: 2017-01-25
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the present invention aims to provide a grouting method for vibration isolation and noise reduction of tunnels in subway intervals, which is an active vibration isolation and noise reduction measure taken in the construction stage for subway vibration-sensitive areas, and can be compared Good to reduce the occurrence of nuisance and nuisance problems caused by vibration and noise

Method used

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  • A grouting method for vibration isolation and noise reduction on the outside of subway tunnel segments

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more understandable, the embodiments of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0027] Hole layout parameters: in the direction of excavation, grouting is performed every 3-5 shield segments, and the hole layout parameters can be adjusted according to requirements.

[0028] (1) Bury the grouting pipe at the selected grouting hole;

[0029] (2) Determine the ratio of the vibration isolation and noise reduction material resin to the catalyst, that is, to satisfy the volume ratio of 1:1 and the weight ratio of 1:1.17 at the same time.

[0030] (3) Connect the injection gun and the grouting pump with a high-pressure rubber hose, use a small multifunctional pneumatic grouting pump, and use a double-liquid grouting system to inject the prepared vibration isolation and noise reduction material resin and catalyst int...

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Abstract

The invention belongs to the technical field of civil engineering and relates to a grouting method used for vibration isolating and denoising outside subway tunnel segments. On the basis of vibration isolating and denoising materials, the grouting method incudes construction processes of selecting grouting holes, burying grouting pipes, determining proportion of vibration isolating and denoising resin and catalyst, injecting the proportioned resin and the catalyst into the grouting holes, washing machines and tools, stopping pumping and detaching an injection gun for secondarily grouting every three to five tunnel segments, and an integral isolator is formed to isolate vibration spreading. By the grouting method, the purpose of vibration isolating and denoising is effectively achieved, loose structure of the surrounding rock can be changed in time, integral strength of the rock is improved, construction is safe and reliable, construction speed is accelerated, normal replacement of working surfaces is guaranteed, shield excavation can be applied when passing the fault and the abnormal areas, even in the area with large vibration affection, and the grouting method is worthy of popularization and practical.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to a grouting method for vibration isolation and noise reduction of tunnels in subway intervals. Background technique [0002] Urban rail transit is an ideal means of transport with large capacity, safety, speed, punctuality, convenience and comfort, and has functions such as low energy consumption, less pollution, safety and comfort, and has a special status and role in solving urban traffic problems . [0003] On the other hand, with the improvement of living standards, people's requirements for quality of life are becoming more and more stringent than before, and the environmental vibration problems caused by the rapid development of rail transit have aroused strong reactions from the public. This is mainly because subway lines often pass through densely populated areas of the city, downtown areas with many buildings, scenic spots, and science and technology parks, etc.,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38E21D11/10
Inventor 陶连金郭飞潘东旭闫冬梅许淇索新爱
Owner BEIJING UNIV OF TECH
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