Tunnel lining vault void monitoring device and monitoring method
A monitoring device and lining technology, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of integrity damage of lining structure, reinforcement of lining structure, etc., and achieve the effect of small environmental interference, high precision, simple and convenient operation
Active Publication Date: 2020-09-29
CENT SOUTH UNIV
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Problems solved by technology
However, the monitoring accuracy of ground radar is greatly disturbed by the environment, and it is easily affected by the density of steel mesh and the fit degree of radar antenna.
In addition, ground radar can only be carried out after the concrete has reached its age. Even if holes are detected, it is difficult to reinforce the lining structure, and the integrity of the lining structure is damaged.
Method used
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[0023] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0024] Such as figure 1 , a tunnel lining vault void monitoring device of the present invention, including monitoring main equipment, signal transmission equipment 3 and signal receiving and processing equipment 4, the three are electrically connected in turn, such as wireless transmission electrical connection, remote monitoring through wireless transmission , The transmission distance can be up to 10 meters.
[0025] Among them, the main monitoring equipment is a hollow rock shell 1 with a built-in attitude sensor 2, and the rock shell 1 has the same size and shape structure as the concrete coarse aggregate at the tunnel engineering site. The rock-like shell 1 can be produced by 3D printing, and its production method is as follows: select representative concrete coarse aggregate, use a 3D laser scanner to obtain the shape of the coarse aggr...
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The invention discloses a tunnel lining vault void monitoring device and monitoring method, and belongs to the technical field of tunnel engineering construction. The tunnel lining vault void monitoring device comprises monitoring main body equipment, signal transmission equipment and signal receiving and processing equipment which are electrically connected, wherein the monitoring main body equipment comprises a hollow rock-like shell with a built-in attitude sensor, and the rock-like shell is the same as concrete coarse aggregate in size, shape and structure and can be placed in concrete slurry and flows along with the concrete slurry in the lining pouring process. In the pouring process, the flowing direction and the final arriving position of the slurry in concrete pouring can be accurately restored by observing the motion trail of the monitoring main body equipment in a lining structure, so that the blindness caused by judgment through an existing experience method is overcome; and moreover, after pouring is completed, the monitoring main body equipment is left in the concrete so that the concrete before reaching the age can be monitored in real time, the local void conditionis discovered in time, then slurry is supplemented in time, and conditions are created for reinforcing the lining structure.
Description
technical field [0001] The invention relates to a tunnel lining vault void monitoring device and a monitoring method, belonging to the technical field of tunnel engineering construction. Background technique [0002] For a long time, tunnel construction has been plagued by the problem of lining voids. The engineering disasters caused by the hollowing out of the tunnel lining have been frequently reported. The tunnel engineering problems caused by the voiding of the lining are manifested in: (1) aggravating the corrosion of the lining and internal steel bars, and reducing the support capacity; (2) the lining is loose and falling off, endangering the safety of traffic; (3) causing freezing damage to the tunnel in severe cold regions. The monitoring and prevention of lining voiding is directly related to the operational safety and service life of the tunnel. [0003] The main reasons for lining voids are: (1) Poor concrete fluidity or insufficient pumping pressure, resulting ...
Claims
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Login to View More IPC IPC(8): E21F17/18E21F17/00E21D11/10E21D11/18
CPCE21F17/18E21F17/00E21D11/10E21D11/18
Inventor 贾朝军雷明峰郑艳妮龚琛杰曾贤平张逆进
Owner CENT SOUTH UNIV