Multi-parameter comprehensive monitoring and early warning method for tunneling face
A technology for comprehensive monitoring of excavation working face, applied in the field of coal mine dynamic disaster monitoring and early warning, can solve the problem of small excavation space of excavation working face, inability to grasp the distribution of surrounding rock active area and stable area of surrounding rock of excavation roadway, and the change range of stress field no problem
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[0026] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0027] The invention provides a method for multi-parameter comprehensive monitoring and early warning of an excavation working face. The monitoring sub-parameters are composed of main sub-monitoring parameters (coal body stress monitoring parameters, ground sound and microseismic monitoring parameters) and auxiliary sub-monitoring parameters (bolt and anchor cable stress monitoring parameters). ), the system architecture can refer to figure 1 to set.
[0028] exist figure 1 Among them, 11 is the monitoring data server, 12 is the real-time monitoring, 13 is the data analysis server, 14 is the optical fiber ring network, 15 is the roof, 16 is the stress measuring point of the bolt and anchor cable, 17 is the ground sound sensor, 18 is the head-on (i.e. E...
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