CN-121994185-A - Roadway surrounding rock stress deformation measurement method and system based on multiple dynamic pressures

CN121994185ACN 121994185 ACN121994185 ACN 121994185ACN-121994185-A

Abstract

The invention discloses a roadway surrounding rock stress deformation measurement method and system based on multiple dynamic pressures, which relate to the technical field of roadway stress deformation measurement, and the method comprises roadway surrounding rock stress monitoring, roadway surrounding rock stress analysis, roadway surrounding rock support management and early warning prompt, and by analyzing monitoring position points of roadway surrounding rock corresponding to stress deformation monitoring, a corresponding deformation characteristic numerical calculation model is constructed, and deformation results of roadway surrounding rock corresponding to stress deformation are analyzed, meanwhile, the corresponding supporting measures are analyzed, and whether the supporting measures adopted by the surrounding rock of the roadway are effective or not is evaluated, so that the stress deformation measurement of the surrounding rock of the roadway is effectively realized, the stress deformation condition corresponding to the surrounding rock of the roadway is more clearly known, the safety under the mining of the coal mine roadway is ensured, more favorable supporting support is provided for the mining of the coal mine roadway, and the service life of the roadway is prolonged.

Inventors

ZHAO WEI
GUO SHUAI
WANG GUN
ZHAO HUILIANG
Nan Jiwen
Cheng Guanyu
ZHANG YONGJUN
GENG SEN
WANG FANG
DU BING
WU WENYUAN

Assignees

山西潞安环保能源开发股份有限公司漳村煤矿

Dates

Publication Date: 20260508
Application Date: 20251215

Claims (10)

1. The roadway surrounding rock stress deformation measurement method based on multiple dynamic pressures is characterized by comprising the following steps of: Monitoring the stress of the surrounding rock of the roadway, namely monitoring the surrounding rock of the roadway based on the mining corresponding to the surrounding rock of the roadway, analyzing to obtain the position points of the monitoring of the stress deformation corresponding to the surrounding rock of the roadway, and collecting the monitoring data of the stress deformation corresponding to the surrounding rock of the roadway; step two, roadway surrounding rock stress analysis, namely constructing a deformation characteristic numerical calculation model for roadway surrounding rock corresponding to stress deformation based on the collected monitoring data, and analyzing deformation results of the roadway surrounding rock corresponding to the stress deformation; Analyzing and obtaining supporting measures of the roadway surrounding rock corresponding to the stress deformation, collecting performance data of the roadway surrounding rock corresponding to the stress deformation after the supporting measures are executed, and evaluating whether the supporting measures adopted by the roadway surrounding rock corresponding to the stress deformation are effective or not; And fourthly, early warning and prompting when the supporting measures adopted by the roadway surrounding rock corresponding to the stress deformation are not effective.
2. The roadway surrounding rock stress deformation measurement method based on multiple dynamic pressures according to claim 1, wherein the analyzing obtains the position points of roadway surrounding rock corresponding to stress deformation monitoring, and the specific analyzing process is as follows: The method comprises the steps of obtaining current composition information of surrounding rocks of a roadway, wherein the current composition information comprises a top plate, two sides, a bottom plate and a supporting structure, the current composition information is respectively recorded as target position points, monitoring distribution under each target position point is set according to specific distribution presentation of the surrounding rocks of the roadway corresponding to each target position point, monitoring points under standard row numbers are distributed on the top plate along the central line of the roadway and the preset distance between the two sides and the central line, the two sides are monitored according to the monitoring points under the preset distance and depth of the included sides, standard depth is preset at the preset distance between the bottom plate and the two sides and at the central line, and three point positions with highest bearing values are selected as the monitoring points according to the bearing values of each node of the supporting structure under the surrounding rocks of the roadway, so that the position points of the surrounding rocks of the roadway corresponding to stress deformation monitoring are obtained through analysis.
3. The roadway surrounding rock stress deformation measuring method based on multiple dynamic pressures according to claim 2, wherein the monitoring data of roadway surrounding rock corresponding to stress deformation is collected, and the specific collecting process is as follows: Each monitoring device is arranged at a position point corresponding to the surrounding rock of the roadway, the historical surrounding rock detection which is the same as the current position point is selected, a historical monitoring mode is extracted from a database, the historical monitoring mode is used as a monitoring mode of the position point corresponding to the surrounding rock of the roadway, the surrounding rock of the roadway is monitored by adopting a fixed-point acquisition and triggering type dual monitoring mode, a triggering value is preset, when the dynamic pressure disturbance frequency corresponding to the surrounding rock of the roadway is equal to or greater than the triggering value, the acquisition frequency is changed, and the monitoring data of the stress deformation corresponding to the surrounding rock of the roadway, including deformation data and stress data, are acquired.
4. The tunnel surrounding rock stress deformation measurement method based on multiple dynamic pressures according to claim 3, wherein the construction is performed to obtain a deformation characteristic numerical calculation model of the tunnel surrounding rock corresponding to the stress deformation, and the specific construction process is as follows: Preprocessing deformation data and stress data of roadway surrounding rock corresponding to stress deformation, smoothing a data curve based on a moving average method, normalizing and processing unified data dimension, meanwhile splitting a pressure section by multiple dynamic pressures of the roadway surrounding rock, marking an action time period, strength and superposition time length corresponding to each dynamic pressure, superposing environment data corresponding to the roadway surrounding rock, establishing association mapping between the environment data and the stress deformation, selecting a four-stage stress model as a basic frame of a roadway surrounding rock deformation characteristic numerical calculation model of the multiple dynamic pressures, establishing a functional relation between dynamic pressure strength and the stress deformation, training and verifying the deformation characteristic numerical calculation model, and further obtaining the deformation characteristic numerical calculation model.
5. The roadway surrounding rock stress deformation measurement method based on multiple dynamic pressures according to claim 4, wherein the analysis of the deformation result of the roadway surrounding rock corresponding to the stress deformation is as follows: if the deformation data corresponding to the surrounding rock of the roadway is smaller than the preset reference deformation value, the increase of the stress data of the surrounding rock of the roadway is 10%, and the supporting corresponding to the surrounding rock of the roadway is judged to be in a slight supporting force shortage, and primary early warning is executed; If the deformation data corresponding to the surrounding rock of the roadway is equal to the preset reference deformation value, the amplification of the stress data of the surrounding rock of the roadway is 15%, and the support corresponding to the surrounding rock of the roadway is judged to be in the middle-micro support force shortage, and the secondary early warning is executed; If the deformation data corresponding to the surrounding rock of the roadway is smaller than the preset reference deformation value, the stress data of the surrounding rock of the roadway is amplified by 20%, and the supporting corresponding to the surrounding rock of the roadway is judged to be in serious supporting force shortage, and three-level early warning is executed.
6. The roadway surrounding rock stress deformation measuring method based on multiple dynamic pressures according to claim 5, wherein the analyzing obtains supporting measures of roadway surrounding rock corresponding to stress deformation, and the specific analyzing process is as follows: When the roof corresponding to the surrounding rock of the roadway is in the insufficient supporting force, comparing the result level of the roof corresponding to the surrounding rock of the roadway in the insufficient supporting force with the reference result level interval of the roof corresponding to each supporting measure stored in the database, and if the result level of the roof corresponding to the surrounding rock of the roadway in the insufficient supporting force is contained in the reference result level interval of the roof corresponding to a supporting measure stored in the database, taking the supporting measure as the supporting measure when the supporting force of the roof corresponding to the surrounding rock of the roadway is insufficient, and obtaining the supporting measure when the supporting force of the roof corresponding to the surrounding rock of the roadway is two-boat-binding carrying or the supporting force of the bottom plate is insufficient in the same comparison mode.
7. The roadway surrounding rock stress deformation measurement method based on multiple dynamic pressures according to claim 6, wherein the performance data comprise surrounding rock stress values, surrounding rock deformation data, supporting structure stress data and surrounding rock crack data.
8. The roadway surrounding rock stress deformation measuring method based on multiple dynamic pressures, according to claim 7, is characterized in that the supporting measures adopted by roadway surrounding rock corresponding to the stress deformation are evaluated to be effective, and the specific evaluation process is as follows: when the surrounding rock stress value of the surrounding rock corresponding to the stress deformation of the roadway is lower than the initial stress value after the supporting measures, the top plate sinking change rate and the bottom bulging change rate contained in the surrounding rock deformation data are lower than the initial change rate, the supporting structure stress data do not show the rising of the stress value, the surrounding rock cracks of the surrounding rock of the roadway do not appear to be newly increased, and the original crack width is not continuously amplified, the supporting measures adopted by the surrounding rock corresponding to the stress deformation of the roadway are judged to be effective, and if any item of the surrounding rock corresponding representation data of the roadway contains data which are opposite to the representation, the supporting measures adopted by the surrounding rock corresponding to the stress deformation of the roadway are judged to be ineffective.
9. A roadway surrounding rock stress deformation measuring system using the multiple dynamic pressure-based roadway surrounding rock stress deformation measuring method as claimed in any one of claims 1 to 8, comprising: the roadway surrounding rock stress monitoring module is used for monitoring under mining corresponding to roadway surrounding rock, analyzing and obtaining position points of roadway surrounding rock corresponding to stress deformation monitoring, and collecting monitoring data of roadway surrounding rock corresponding to stress deformation; The roadway surrounding rock stress analysis module is used for constructing and obtaining a deformation characteristic numerical calculation model of the roadway surrounding rock corresponding to the stress deformation based on the collected monitoring data, and analyzing the deformation result of the roadway surrounding rock corresponding to the stress deformation; The roadway surrounding rock supporting management is used for analyzing and obtaining supporting measures of roadway surrounding rock corresponding to stress deformation, collecting performance data of the roadway surrounding rock corresponding to the stress deformation after the supporting measures are executed, and evaluating whether the supporting measures adopted by the roadway surrounding rock corresponding to the stress deformation are effective or not; And the early warning terminal is used for carrying out early warning prompt when the supporting measures adopted by the roadway surrounding rock corresponding to the stress deformation are not effective.
10. The roadway surrounding rock stress deformation measuring system based on multiple dynamic pressures, according to claim 9, further comprising a database for storing deformation behavior characteristics, monitoring data, dynamic pressure disturbance frequency, multiple dynamic pressures, action time periods, strength, superposition time periods, environmental data, reference result level intervals of each supporting measure and performance data.

Description

Roadway surrounding rock stress deformation measurement method and system based on multiple dynamic pressures Technical Field The invention relates to the technical field of roadway stress deformation measurement, in particular to a roadway surrounding rock stress deformation measurement method and system based on multiple dynamic pressures. Background The roadway is an important channel for supporting coal mining, so that the roadway surrounding rock stress deformation measurement method and system based on multiple dynamic pressures are provided, intelligent monitoring of roadway surrounding rock corresponding to asymmetric deformation directions is achieved, safety application of the roadway in practice is effectively guaranteed, the service life of the roadway is effectively prolonged, and risks and losses caused by abnormal roadway support are reduced. The current technology has the following problems that the current technology mainly focuses on monitoring the state and safety of a coal mine during collection, mainly focuses on the coal mine ore body, does not deeply analyze the direction of a roadway, so that asymmetric deformation obtained based on monitoring of the roadway cannot be known, the correlation influence between the stress data and the deformation data cannot be obtained based on monitoring of the roadway, the conclusion of the influence of the stress deformation of the roadway cannot be obtained, the supporting condition corresponding to the roadway cannot be known through side reaction, timely maintenance operation cannot be adopted on the insufficient supporting of the roadway at the first time, and therefore the expansion of safety risks caused by insufficient supporting is avoided, the service life of the roadway is reduced, and the maintenance cost of the roadway is increased. Disclosure of Invention Aiming at the technical defects, the invention aims to provide a roadway surrounding rock stress deformation measuring method and system based on multiple dynamic pressures. The invention provides a tunnel surrounding rock stress deformation measuring method based on multiple dynamic pressures, which comprises the following steps of firstly, monitoring tunnel surrounding rock stress based on mining corresponding to the tunnel surrounding rock, analyzing and obtaining position points of the tunnel surrounding rock corresponding to the stress deformation monitoring, and collecting monitoring data of the tunnel surrounding rock corresponding to the stress deformation. And secondly, analyzing the stress of the surrounding rock of the roadway, namely constructing and obtaining a deformation characteristic numerical calculation model of the surrounding rock of the roadway corresponding to the stress deformation based on the collected monitoring data, and analyzing the deformation result of the surrounding rock of the roadway corresponding to the stress deformation. And thirdly, roadway surrounding rock supporting management, namely analyzing and obtaining supporting measures of roadway surrounding rock corresponding to stress deformation, collecting performance data of the roadway surrounding rock corresponding to the stress deformation after the supporting measures are executed, and evaluating whether the supporting measures adopted by the roadway surrounding rock corresponding to the stress deformation are effective or not. And fourthly, early warning and prompting when the supporting measures adopted by the roadway surrounding rock corresponding to the stress deformation are not effective. The invention provides a roadway surrounding rock stress deformation measurement system based on multiple dynamic pressures, which comprises a roadway surrounding rock stress monitoring module, a stress monitoring module and a stress deformation monitoring module, wherein the roadway surrounding rock stress monitoring module is used for monitoring roadway surrounding rock based on mining corresponding to the roadway surrounding rock and analyzing and obtaining position points of the roadway surrounding rock corresponding to the stress deformation monitoring, and collecting monitoring data of the roadway surrounding rock corresponding to the stress deformation. The roadway surrounding rock stress analysis module is used for constructing and obtaining a deformation characteristic numerical calculation model of roadway surrounding rock corresponding to stress deformation based on the collected monitoring data, and analyzing deformation results of the roadway surrounding rock corresponding to the stress deformation. And the roadway surrounding rock supporting management is used for analyzing and obtaining supporting measures of the roadway surrounding rock corresponding to the stress deformation, collecting the performance data of the roadway surrounding rock corresponding to the stress deformation after the supporting measures are executed, and evaluating whether the supporting measures adopted by the road