System for monitoring temperature, stress and deformation of frozen wall of shaft in real time and laying method thereof
A real-time monitoring and frozen wall technology, which is applied in the directions of surveying, earthwork drilling, borehole/well components, etc., can solve the problem that the frozen wall affects the normal excavation of the wellbore, and achieves easy long-distance signal transmission and measurement control, small size , the effect of more measurement points
Inactive Publication Date: 2014-12-10
CHINA COAL MINE CONSTR GRP
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Problems solved by technology
The deformation of the frozen wall not only affects the normal excavation of the wellbore, but the instability and damage of the frozen wall will cause major economic losses and safety accidents
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[0022] Monitoring system, including engineering monitoring equipment 3 and computer software system 4 for processing monitoring information, such as figure 2 As shown, the engineering monitoring equipment 3 includes a distributed optical fiber 12 and a FBG sensor 13 implanted in the frozen wall 1 for monitoring the temperature, stress and deformation of the frozen wall, and the distributed optical fiber 12 and the FBG sensor 13 are respectively connected to the optical fiber through an optical cable A strain analyzer 9 and a fiber grating strain acquisition system 10 are used for data acquisition.
[0023] Such as figure 1 As shown, the computer software system 4 includes a database, a data analysis system, an early warning system and a monitoring report generation system; The data analysis software analyzes and predicts the monitoring data in the database. After the data analysis system analyzes and predicts the data, the early warning and forecast system provides real-time...
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The invention relates to a system for monitoring the temperature, the stress and the deformation of a frozen wall of a shaft in real time and a laying method thereof and belongs to the technical field of detection instrument equipment. The system is used for carrying out real-time automatic monitoring on the temperature, the stress and the deformation of the frozen wall of the shaft constructed by a freezing method. The system comprises the frozen wall of the shaft constructed by the freezing method, which needs to be monitored, an engineering monitoring position, a deformation monitoring sensing equipment and instrument and a monitoring data software analysis system. The invention solves the problem that the deformation of the frozen wall of the shaft constructed by the freezing method and the damage to the frozen wall directly relate to the normal construction of the shaft engineering constructed by the freezing method, so that how to find the symptom before the deformation of the frozen wall of the shaft constructed by the freezing method or the damage to the frozen wall exceeds the allowed deformation or damage is the key problem of reducing the disaster. The system and the laying method thereof have the advantage that the deformation monitoring system for carrying out real-time automatic monitoring on the temperature, the stress and the deformation of the frozen wall of the shaft can provide early warning and forecasting before the deformation of the frozen wall of the shaft constructed by the freezing method or the damage to the frozen wall exceeds the allowed deformation or damage so as to reduce the disaster and the loss.
Description
technical field [0001] The invention relates to a system for real-time monitoring of the temperature, force and deformation of the frozen wall of a shaft, and belongs to the technical field of detection instruments and equipment. Background technique [0002] The frozen wall of the shaft in the construction of the freezing method plays a role of temporary support during the excavation of the shaft, and the temperature, stress and deformation of the frozen wall are crucial to the smooth excavation of the shaft. The deformation of the frozen wall not only affects the normal excavation of the shaft, but the instability and damage of the frozen wall will cause major economic losses and safety accidents. How to avoid the frozen wall of the wellbore in the construction of the freezing method to take reinforcement measures in time before the allowable deformation or damage to reduce disasters. [0003] In order to ensure that the temperature, stress and deformation of the frozen w...
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IPC IPC(8): E21B47/00E21B47/07E21B49/00
Inventor 陆卫国沈华军刘增辉梅家敏武胜男
Owner CHINA COAL MINE CONSTR GRP
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