CN115455537A - Rock burst roadway support parameter determining method and device - Google Patents
Rock burst roadway support parameter determining method and device Download PDFInfo
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Abstract
The invention provides a rock burst roadway support parameter determining method and device, wherein the rock burst roadway support parameter determining method comprises the following steps: constructing an initial roadway model corresponding to the simulation roadway based on engineering environment information corresponding to the simulation roadway; optimizing the initial roadway model based on historical data corresponding to the simulation roadway, and determining a target roadway model; inputting parameters to be measured into the target roadway model, and acquiring roadway deformation prediction data output by the target roadway model; and determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect. The rock burst roadway support parameter determining method can obviously improve the accuracy and the precision of the determined target roadway support parameters, and has higher practicability, flexibility and application range.
Description
Technical Field
The invention relates to the technical field of roadways, in particular to a rock burst roadway support parameter determining method and device.
Background
The method can keep the stability of the surrounding rock of the roadway in the process of rock burst and is a main means for improving the safety of the roadway. In the related technology, strong supporting modes such as a strong anchor rod and an anti-impact support are mainly adopted to support the roadway, but the supporting system lacks certain scientificity and rationality and cannot accurately and effectively control the impact damage of the surrounding rock of the roadway.
Disclosure of Invention
The invention provides a rock burst roadway support parameter determining method and device, which are used for solving the defect that the impact damage of roadway surrounding rocks cannot be accurately and effectively controlled in the prior art and realizing accurate and reasonable roadway support.
The invention provides a rock burst roadway support parameter determining method, which comprises the following steps:
constructing an initial roadway model corresponding to the simulation roadway based on engineering environment information corresponding to the simulation roadway;
optimizing the initial roadway model based on historical data corresponding to the simulation roadway, and determining a target roadway model;
inputting parameters to be measured into the target roadway model, and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be measured are support related parameters;
and determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
According to the rock burst roadway support parameter determining method provided by the invention, the initial roadway model is optimized and the target roadway model is determined based on the historical data corresponding to the simulation roadway, and the method comprises the following steps:
assigning the initial roadway model based on the historical data to obtain a predicted failure result;
under the condition that the predicted damage result is matched with an actual damage result corresponding to the historical data, optimizing the historical data and determining a first parameter;
and assigning the initial roadway model based on the first parameters and the simulated working characteristic data corresponding to the anti-impact support, and determining the target roadway model.
According to the method for determining the rock burst roadway support parameters, which is provided by the invention, the historical data comprises the following steps: the historical data is determined by the following modes:
determining the actual coal-rock body mechanical parameters based on the actual measurement physical parameters of the surrounding rock roof rock layer and the roadway side coal body of the simulated roadway;
determining the actual seismic source parameters based on actual magnitude information, actual energy information and actual position information corresponding to the simulation roadway;
and determining the actual support material parameters based on the support material parameters of the target roadway under the condition of the historical accidents, wherein the target roadway is a roadway similar to the simulation roadway.
According to the determination method of the rock burst roadway support parameters, which is provided by the invention, the optimization of the historical data comprises the following steps:
optimizing the historical data based on actual damage results of the predicted damage results corresponding to the historical data;
optimizing the historical data based on one of an impact energy magnitude or a hazard level of the simulated roadway.
According to the method for determining the roadway support parameters of rock burst, provided by the invention, the simulation working characteristic data is determined in the following way:
acquiring a working resistance characteristic curve of an anti-impact support of the simulation roadway;
and determining the simulated operating characteristic data based on the operating resistance characteristic curve.
According to the method for determining the roadway support parameters of rock burst, provided by the invention, the parameters to be measured comprise:
the row spacing, the strength, the length, the pre-tightening force, the working resistance of the anti-impact support, the setting force and the abdication displacement between the anchor rod and the anchor cable.
According to the rock burst roadway support parameter determining method provided by the invention, after the target roadway support parameters corresponding to the simulation roadway are determined based on the roadway deformation prediction data and the target support effect, the method comprises the following steps:
acquiring actual state data of the simulation tunnel under the support parameters of the target tunnel;
and optimizing the target roadway support parameters based on actual state data.
According to the rock burst roadway support parameter determining method provided by the invention, after determining the target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect, the method comprises the following steps:
generating early warning information based on the target roadway support parameters and actual roadway support parameters corresponding to the simulation roadway;
and outputting the early warning information.
The invention also provides a rock burst roadway support parameter determining device, which comprises:
the first processing module is used for constructing an initial roadway model corresponding to the simulation roadway based on the engineering environment information corresponding to the simulation roadway;
the second processing module is used for optimizing the initial roadway model and determining a target roadway model based on historical data corresponding to the simulation roadway;
the third processing module is used for inputting parameters to be measured to the target roadway model and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be measured are support related parameters;
and the fourth processing module is used for determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
The invention also provides electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the method for determining the rock burst roadway support parameters is realized.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of determining rock burst roadway support parameters as described in any one of the above.
The invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a method for determining rock burst roadway support parameters as described in any one of the above.
According to the rock burst roadway support parameter determining method and device, the initial roadway model is built, the initial roadway model is optimized based on historical data corresponding to the simulation roadway, the target roadway model is obtained, and the accuracy of the target roadway model can be improved; the target roadway support parameters are determined through the target support effect and roadway deformation prediction data output by the target roadway model, the accuracy and the precision of the determined target roadway support parameters can be obviously improved, in addition, the standard parameters of the target roadway model and the parameters to be detected input into the target roadway model can be flexibly adjusted according to actual conditions, and the method has certain scientificity, higher practicability, flexibility and wide application range.
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In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow diagram of a rock burst roadway support parameter determination method provided by the invention;
fig. 2 is a schematic structural diagram of a rock burst roadway support parameter determining device provided by the invention;
fig. 3 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The rock burst roadway support parameter determination method of the invention is described below with reference to fig. 1.
Fig. 1 is a schematic flow chart of a rock burst roadway support parameter determination method provided by the invention. As shown in fig. 1, the method for determining rock burst roadway support parameters includes: step 110, step 120, step 130 and step 140.
optionally, the simulation roadway is a roadway needing to be supported.
And the engineering environment information is used for representing the engineering environment condition of the area where the simulation roadway is located.
Engineering environmental information includes, but is not limited to: simulating the actual engineering geological conditions of the area where the roadway is located, simulating the size of the section of the roadway, the supporting condition and the like.
The engineering environment information is a parameter for constructing an initial roadway model.
In the actual execution process, a grid can be constructed in the area where the simulation tunnel is located so as to collect engineering environment information and construct a tunnel model.
For example, grids within a range of 20m around the simulation roadway can be encrypted to obtain the engineering pipe diameter information, so that the accuracy of the engineering environment information is improved, and the accuracy and the calculation efficiency of subsequent calculation are improved.
The initial roadway model includes: rock structure model and supporting construction model.
The initial tunnel model may be constructed by using Universal Discrete Element (UDEC) software.
The size of the initial tunnel model may be determined based on field practices.
In some embodiments, the smaller the mesh size, the more accurate the simulation results determined based on the roadway model.
optionally, the historical data is real data associated with the roadway.
The historical data may include: the actual coal-rock mass mechanical parameters, the actual seismic source parameters, the actual supporting material parameters and the like.
The actual coal-rock mass mechanical parameters are related data representing mechanical properties of the coal-rock mass in the area where the simulation roadway is located.
The actual seismic source parameters are actual vibration parameters for simulating vibration of the area of the roadway when the roadway is in an accident under historical conditions.
And the actual supporting material parameters are corresponding actual supporting related data of a target roadway similar to the simulation roadway under the historical condition when an accident occurs.
The target roadway model is obtained by optimizing the initial roadway model.
The result output by the target roadway model is closer to the real result.
In actual implementation, the initial roadway model may be optimized to determine the target roadway model based on historical data.
optionally, the parameter to be measured is a parameter for characterizing the support characteristics.
The parameters to be measured include: roadway anchor bolt support material parameters, support parameters and the like.
The parameter to be measured is a variable parameter.
And the roadway deformation prediction data are obtained through prediction, and under the action of parameters corresponding to the target model, the simulation roadway corresponding to the parameters to be measured deforms.
The roadway deformation prediction data may include: and simulating the vibration speed, the acceleration, the damage range, the displacement and other data of the roadway surface.
It can be understood that, the input parameters to be measured are different, and the corresponding roadway deformation prediction data are also different.
In some embodiments, the parameters to be measured include: the row spacing, the strength, the length, the pre-tightening force, the working resistance of the anti-impact support, the setting force and the abdication displacement between the anchor rod and the anchor cable.
In the actual execution process, after a target roadway model is determined, in the actual simulation process, the target roadway model can be calculated, data such as the vibration speed, the acceleration, the damage range and the displacement of the surface of the simulated roadway are obtained by adjusting input parameters such as the row spacing, the strength, the length and the pretightening force between the anchor rods and the anchor cables and parameters waiting for measurement of the working resistance, the initial supporting force and the abdicating displacement of the anti-impact support, and then the deformation damage condition of the roadway is comprehensively evaluated based on the obtained roadway deformation prediction data.
And 140, determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
Optionally, the target supporting effect is a supporting effect required to be achieved by the simulated roadway.
The target support effect comprises the following steps: the supporting effect required to be achieved by the simulation roadway, the performance of resisting the shock level of the rock burst which can be achieved by the simulation roadway and the danger level of resisting the rock burst which can be achieved by the simulation roadway.
The target roadway support parameters are support data which are required under the condition that the roadway can be effectively protected from being damaged in the earthquake.
Target roadway support parameters include, but are not limited to: target roadway anchor bolt supporting materials, target supporting parameters, target support parameters and the like.
In this step, the parameter to be measured is adjusted based on the roadway deformation prediction data and the target support effect until the output roadway deformation prediction data satisfies the target support effect, and then the parameter to be measured can be determined as the target roadway support parameter.
The roadway is supported based on the target roadway support parameters, and the rationality and the scientificity of a roadway support system can be improved.
According to the rock burst roadway support parameter determining method provided by the embodiment of the invention, the initial roadway model is constructed, and the initial roadway model is optimized based on the historical data corresponding to the simulation roadway to obtain the target roadway model, so that the accuracy of the target roadway model can be improved; the target roadway support parameters are determined through the target support effect and roadway deformation prediction data output by the target roadway model, the accuracy and the precision of the determined target roadway support parameters can be obviously improved, in addition, the standard parameters of the target roadway model and the parameters to be measured input into the target roadway model can be flexibly adjusted according to actual conditions, certain scientificity, higher practicability, flexibility and wide application range are achieved, and the situations of collapse, damage and the like of a roadway when rock burst occurs are effectively avoided.
In some embodiments, the step 120 of optimizing the initial roadway model and determining the target roadway model based on the historical data corresponding to the simulation roadway may include:
assigning an initial roadway model based on historical data to obtain a predicted failure result;
under the condition that the predicted damage result is matched with the actual damage result corresponding to the historical data, optimizing the historical data and determining a first parameter;
and assigning the initial roadway model based on the first parameters and the simulation working characteristic data corresponding to the anti-impact support to determine the target roadway model.
Optionally, the predicted damage result is a damage result which is predicted based on the initial roadway model and can be generated by simulating the roadway under the action of historical data.
The actual damage result is the actual damage result generated by simulating the historical accident situation of the roadway.
The first parameter is data for correcting the history data.
For example, a typical rock burst accident case occurring in a mine or a mining area where the simulation tunnel is located may be selected as sample data to obtain the historical data and an actual damage result corresponding to the historical data.
In some embodiments, the matching of the predicted corruption result with the actual corruption result corresponding to the historical data may include: the absolute value of the degree of difference between the predicted damage result and the actual damage result corresponding to the historical data does not exceed the target threshold.
The target threshold is a smaller value greater than or equal to 0, and the value of the target threshold can be customized based on a user.
And when the difference between the predicted damage result and the actual damage result corresponding to the historical data does not exceed the target threshold, approximately considering that the predicted damage result is basically consistent with the actual damage result, and obtaining optimized historical data, namely the first parameter through inversion.
In some embodiments, the first parameter may also be used for the calculation of the next supporting scheme.
The simulated operating characteristic data is used to characterize simulated data of operating characteristics of the anti-impingement support.
In the actual execution process, the initial roadway model is assigned by adopting the first parameters and the simulation working characteristic data, and the optimized roadway model, namely the target roadway model, can be obtained.
The accuracy and precision of the target roadway model are higher than those of the initial roadway model.
According to the rock burst roadway support parameter determining method provided by the embodiment of the invention, the first parameter is obtained by inverting the predicted damage result and the actual damage result, and the initial roadway model is assigned to determine the target roadway model based on the first parameter and the simulation working characteristic data corresponding to the anti-impact support, so that the accuracy and the precision of the roadway model can be obviously improved.
In some embodiments, the historical data includes: the historical data can be determined by the following modes:
determining actual coal-rock mass mechanical parameters based on actual measurement physical parameters of surrounding rock roof rock strata and roadway side coal bodies of the simulated roadway;
determining actual seismic source parameters based on actual seismic level information, actual energy information and actual position information corresponding to the simulation tunnel;
and determining actual support material parameters based on the support material parameters of the target roadway under the historical accident condition, wherein the target roadway is a roadway similar to the simulation roadway.
Optionally, the measured physical parameters include, but are not limited to: the strength, the elastic modulus, the Poisson ratio, the cohesion, the internal friction angle, the strength of support materials such as rods/anchor cables under the impact load, the elongation and other physical parameters.
In some embodiments, the measured physics parameters may be determined as actual coal-rock bulk mechanics parameters, and the initial roadway model may be assigned based on the measured physics parameters.
In the actual execution process, a uniaxial compression testing machine and a triaxial compression testing machine can be utilized to test the actual measurement physical parameters of the simulated tunnel surrounding rock roof rock stratum and the tunnel side coal body; and (3) measuring the actual measurement physical parameters such as strength, elongation and the like of support materials such as anchor rods, anchor cables and the like under the impact load by using a drop hammer impact tester.
In some embodiments, determining the actual source parameters based on the actual magnitude information, the actual energy information, and the actual location information corresponding to the simulated roadway may include:
calculating parameters such as stress, frequency and amplitude of P waves and S waves by using a theoretical calculation method based on actual magnitude information, actual energy information and actual position information corresponding to the simulation tunnel; and then determining the determined parameters such as stress, frequency and amplitude as actual seismic source parameters, and assigning the initial roadway model based on the actual seismic source parameters.
The actual support material parameters are support material parameters obtained by measuring the target roadway.
The target roadway is similar to the simulation roadway, and can be represented as the target roadway is similar to the environment of the simulation roadway.
According to the invention, the accuracy and integrity of historical data can be improved by performing the coal-rock mass mechanical parameter test and the anchor bolt support material test to obtain the historical data.
According to the method for determining the rock burst roadway support parameters, provided by the embodiment of the invention, the historical data is determined based on the actual coal-rock mass mechanical parameters, the actual seismic source parameters and the actual support material parameters, so that the comprehensiveness and integrity of the historical data can be improved.
In some embodiments, optimizing the historical data may include:
optimizing the historical data based on the actual damage result corresponding to the predicted damage result and the historical data;
optimizing historical data based on one of an impact energy magnitude or a hazard level of the simulated roadway.
Optionally, after the initial roadway model is assigned by using the actual coal-rock mass mechanical parameters, the actual seismic source parameters and the actual supporting material parameters, a predicted damage result output by the initial roadway model can be obtained; by comparing and verifying the predicted damage result with the actual damage result, under the condition that the predicted damage result is basically consistent with the actual damage result, performing inversion to obtain optimized data such as coal-rock body mechanical parameters, seismic source parameters, support material parameters and the like, wherein the optimized data is the first parameter.
In the embodiment, the first parameter is obtained through inversion of the mechanical parameters of the coal rock mass and the mechanical parameters of the anchor bolt supporting material, so that the accuracy of the first parameter can be improved, and the accuracy of a subsequent calculation result is improved.
Further, under the condition that the first parameters comprise seismic source parameters, roadway impact energy close to similar geological conditions and engineering conditions monitored by a microseismic monitoring system can be utilized, or a comprehensive index method is adopted to determine the seismic magnitude or danger level of the simulated roadway impact energy; then, determining parameters of P wave and S wave of the impact seismic source by using a corresponding theoretical calculation formula, namely parameters such as stress, frequency and distance from the impact seismic source to a roadway; and then, according to the mechanics inversion result, properly correcting the seismic source parameters to obtain first parameters.
In the embodiment, the scientificity and rationality of the first parameter can be further improved by performing impact magnitude or risk evaluation on the simulation tunnel to be designed to correct the seismic source parameter.
According to the method for determining the rock burst roadway support parameters, which is provided by the embodiment of the invention, the accuracy of the obtained first parameter can be improved by inverting the historical data to obtain the optimized data, so that the first parameter is more scientific and reasonable.
In some embodiments, the simulated operating characteristic data may be determined by:
acquiring a working resistance characteristic curve of an anti-impact support of a simulation roadway;
based on the operating resistance characteristic curve, simulated operating characteristic data is determined.
Optionally, the operating resistance characteristic is a curve for characterizing the operating resistance of the anti-impact bracket.
For example, a working resistance characteristic curve of the roadway anti-impact support can be tested by using a 6000KN impact testing machine, the curve is properly simplified and fitted, the working resistance parameters of the multi-section linear anti-impact support are determined, and then the determined parameters are input into an initial roadway model in a fish language programming mode to simulate the working characteristics of the anti-impact support in the roadway.
In the invention, the working resistance characteristic of the anti-impact support is tested to generate the simulation working characteristic data for simulating the working characteristic of the anti-impact support, and the simulation working characteristic data is conveniently assigned to the roadway model, so that the target roadway model can accurately simulate the working characteristic of the anti-impact support in the roadway, and the accuracy and precision of the target roadway model are improved.
According to the rock burst roadway support parameter determining method provided by the embodiment of the invention, the simulation working characteristic data is determined through the working resistance characteristic curve, and the working characteristics of the anti-impact support in the roadway can be effectively and accurately simulated, so that the accuracy and precision of the target roadway model are improved, and the subsequent calculation effect is improved.
In some embodiments, after step 140, the method may further comprise:
acquiring actual state data of a simulation roadway under the support parameters of a target roadway;
and optimizing the support parameters of the target roadway based on the actual state data.
Optionally, the actual state data includes, but is not limited to: and simulating data such as vibration inside the surrounding rock, stress of the anchor rod (cable) supporting structure, roadway deformation and the like corresponding to the roadway in the tunneling process.
And the actual state data is used for evaluating the stability of surrounding rocks and a supporting structure of the roadway so as to ensure the safe use of the rock burst roadway.
In the actual execution process, dynamic feedback can be carried out on the roadway support design of the impact ground pressure based on the obtained actual state data, and the reliability of the support system is verified, so that optimization of roadway support design parameters and design methods is realized.
According to the method, the support parameters are determined by combining the building of a UDEC roadway model, the testing of coal-rock mass mechanical parameters and the testing of anchor bolt support materials, the inversion of the coal-rock mass mechanical parameters and the inversion of the anchor bolt support material mechanical parameters, the evaluation of the impact shock level or danger of a roadway to be designed, the testing of the working resistance characteristics of an anti-impact support, the calculation of values, the determination of the support parameters, the dynamic adjustment of the roadway support design and the like, so that the scientification and the quantification of the roadway support design of the rock burst can be realized, and the situations of collapse, damage and the like of the roadway when the rock burst occurs are effectively avoided.
According to the rock burst roadway support parameter determining method provided by the embodiment of the invention, the target roadway support parameters are optimized based on actual state data, and dynamic adjustment of roadway support design can be realized, so that the accuracy and the reasonability of the determined target roadway support parameters are further improved.
In some embodiments, after step 140, the method may further comprise:
generating early warning information based on the target roadway support parameters and actual roadway support parameters corresponding to the simulation roadway;
and outputting early warning information.
Optionally, the actual roadway support parameters are real support parameters corresponding to the current simulated roadway.
The early warning information is used for representing potential safety hazard conditions existing in the current supporting conditions of the simulation roadway.
The early warning information is used for early warning the user to assist the user in maintaining the simulation tunnel in time, and therefore the safety of the simulation tunnel is improved.
The early warning information can be output in at least one of the following modes:
first, text output.
In the embodiment, the terminal can output the early warning information while outputting the target roadway support parameters, and a user (such as an operator or a safety detector) can optimize the support parameters of the simulated roadway in time based on the early warning information and the target roadway support parameters.
And secondly, voice output.
In the embodiment, the terminal can warn the operator in a voice mode, and potential safety hazards exist in the current simulation roadway.
And thirdly, outputting the image.
In the embodiment, the early warning information can be displayed on the screen of the monitoring center, or the early warning information can be displayed while the surrounding environment picture of the simulated roadway is displayed deliberately, and a user is reminded to maintain the roadway support in time.
And fourthly, outputting by a signal lamp.
In the embodiment, the monitoring personnel are reminded of potential safety hazards in the current simulation roadway by controlling the signal lamp to flicker.
Of course, in other embodiments, the output may also be expressed in other forms, which may be determined according to actual needs, and the embodiment of the present invention does not limit this.
According to the rock burst roadway support parameter determining method provided by the embodiment of the invention, the early warning information is generated and output based on the target roadway support parameters and the actual roadway support parameters corresponding to the simulation roadway, so that a user can be reminded of potential safety hazards existing in the current simulation roadway in time, and the user can be better assisted to optimize the support parameters, thereby improving the safety and response timeliness of the simulation roadway.
The rock burst roadway support parameter determining device provided by the invention is described below, and the rock burst roadway support parameter determining device described below and the rock burst roadway support parameter determining method described above can be referred to correspondingly.
Fig. 2 is a schematic structural diagram of the rock burst roadway support parameter determining device provided by the invention. As shown in fig. 2, the rock burst roadway support parameter determining device includes: a first processing module 210, a second processing module 220, a third processing module 230, and a fourth processing module 240.
The first processing module 210 is configured to construct an initial roadway model corresponding to the simulation roadway based on the engineering environment information corresponding to the simulation roadway;
the second processing module 220 is configured to optimize the initial roadway model and determine a target roadway model based on historical data corresponding to the simulation roadway;
the third processing module 230 is configured to input the parameter to be measured to the target roadway model, and obtain roadway deformation prediction data output by the target roadway model, where the parameter to be measured is a support-related parameter;
and the fourth processing module 240 is configured to determine a target roadway support parameter corresponding to the simulated roadway based on the roadway deformation prediction data and the target support effect.
According to the rock burst roadway support parameter determining device provided by the embodiment of the invention, the initial roadway model is constructed, and based on the historical data corresponding to the simulation roadway, the initial roadway model is optimized to obtain the target roadway model, so that the accuracy of the target roadway model can be improved; the target roadway support parameters are determined through the target support effect and roadway deformation prediction data output by the target roadway model, the accuracy and the precision of the determined target roadway support parameters can be obviously improved, in addition, the standard parameters of the target roadway model and the parameters to be detected input into the target roadway model can be flexibly adjusted according to actual conditions, and the method has certain scientificity, higher practicability, flexibility and wide application range.
In some embodiments, the second processing module 220 may be further configured to:
assigning an initial roadway model based on historical data to obtain a predicted failure result;
under the condition that the predicted damage result is matched with the actual damage result corresponding to the historical data, optimizing the historical data and determining a first parameter;
and assigning the initial roadway model based on the first parameters and the simulation working characteristic data corresponding to the anti-impact support to determine the target roadway model.
In some embodiments, the historical data comprises: the device also comprises a fifth processing module used for:
determining actual coal-rock mass mechanical parameters based on actual measurement physical parameters of surrounding rock roof rock strata and roadway side coal bodies of the simulated roadway;
determining actual seismic source parameters based on actual seismic level information, actual energy information and actual position information corresponding to the simulation roadway;
and determining the actual support material parameters based on the support material parameters of the simulated roadway under the historical accident condition.
In some embodiments, the second processing module 220 may be further configured to:
optimizing the historical data based on the actual damage result corresponding to the predicted damage result and the historical data;
optimizing historical data based on one of an impact energy magnitude or a hazard level of the simulated roadway.
In some embodiments, the apparatus may further include a sixth processing module to:
acquiring a working resistance characteristic curve of an anti-impact support of a simulation roadway;
based on the operating resistance characteristic curve, simulated operating characteristic data is determined.
In some embodiments, the apparatus may further comprise:
the seventh processing module is used for acquiring actual state data of the simulation roadway under the support parameters of the target roadway after determining the support parameters of the target roadway corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect;
and the eighth processing module is used for optimizing the support parameters of the target roadway based on the actual state data.
In some embodiments, the apparatus may further comprise:
the ninth processing module is used for generating early warning information based on the target roadway support parameters and the actual roadway support parameters corresponding to the simulation roadway after determining the target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect;
and the tenth processing module is used for outputting the early warning information.
Fig. 3 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 3: a processor (processor) 310, a communication Interface (communication Interface) 320, a memory (memory) 330 and a communication bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 communicate with each other via the communication bus 340. The processor 310 may invoke logic instructions in the memory 330 to perform a method of determining a ram pressure roadway support parameter, the method comprising: constructing an initial roadway model corresponding to the simulation roadway based on the engineering environment information corresponding to the simulation roadway; optimizing an initial roadway model based on historical data corresponding to the simulation roadway, and determining a target roadway model; inputting parameters to be measured into a target roadway model, and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be measured are support related parameters; and determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the rock burst roadway support parameter determination method provided by the above methods, the method comprising: constructing an initial roadway model corresponding to the simulation roadway based on the engineering environment information corresponding to the simulation roadway; optimizing an initial roadway model based on historical data corresponding to the simulation roadway, and determining a target roadway model; inputting parameters to be measured into a target roadway model, and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be measured are support related parameters; and determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which when executed by a processor is implemented to perform the provided rock burst roadway support parameter determination methods described above, the method comprising: constructing an initial roadway model corresponding to the simulation roadway based on the engineering environment information corresponding to the simulation roadway; optimizing an initial roadway model based on historical data corresponding to the simulation roadway, and determining a target roadway model; inputting parameters to be measured into a target roadway model, and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be measured are support related parameters; and determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A rock burst roadway support parameter determining method is characterized by comprising the following steps:
constructing an initial roadway model corresponding to the simulation roadway based on engineering environment information corresponding to the simulation roadway;
optimizing the initial roadway model based on historical data corresponding to the simulation roadway, and determining a target roadway model;
inputting parameters to be tested into the target roadway model, and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be tested are support related parameters;
and determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
2. The method for determining rock burst roadway support parameters according to claim 1, wherein the optimizing the initial roadway model and determining a target roadway model based on historical data corresponding to the simulation roadway comprises:
assigning the initial roadway model based on the historical data to obtain a predicted failure result;
under the condition that the predicted damage result is matched with an actual damage result corresponding to the historical data, optimizing the historical data and determining a first parameter;
and assigning the initial roadway model based on the first parameters and the simulation working characteristic data corresponding to the anti-impact support, and determining the target roadway model.
3. The method for determining rock burst roadway support parameters of claim 2, wherein the historical data comprises: the historical data of the actual coal-rock mass mechanical parameters, the actual seismic source parameters and the actual supporting material parameters are determined in the following mode:
determining the actual coal-rock body mechanical parameters based on the actual measurement physical mechanical parameters of the surrounding rock roof rock layer and the roadway side coal body of the simulation roadway;
determining the actual seismic source parameters based on actual magnitude information, actual energy information and actual position information corresponding to the simulation tunnel;
and determining the actual support material parameters based on the support material parameters of the target roadway under the historical accident condition, wherein the target roadway is a roadway similar to the simulation roadway.
4. The method for determining rock burst roadway support parameters of claim 2, wherein said optimizing said historical data comprises:
optimizing the historical data based on the actual damage result corresponding to the predicted damage result and the historical data;
optimizing the historical data based on one of an impact energy magnitude or a hazard level of the simulated roadway.
5. The rock burst roadway support parameter determination method of claim 2, wherein the simulated operating characteristic data is determined by:
acquiring a working resistance characteristic curve of an anti-impact support of the simulation roadway;
and determining the simulated operating characteristic data based on the operating resistance characteristic curve.
6. The method for determining the rock burst roadway support parameters according to any one of claims 1 to 5, wherein the parameters to be measured comprise:
the row spacing, the strength, the length, the pre-tightening force, the working resistance of the anti-impact support, the setting force and the abdication displacement between the anchor rod and the anchor cable.
7. The method for determining rock burst roadway support parameters according to any one of claims 1-5, wherein after determining the target roadway support parameters corresponding to the simulated roadway based on the roadway deformation prediction data and the target support effect, the method comprises:
acquiring actual state data of the simulation roadway under the support parameters of the target roadway;
and optimizing the target roadway support parameters based on the actual state data.
8. The rock burst roadway support parameter determination method according to any one of claims 1 to 5, wherein after determining the target roadway support parameter corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect, the method comprises:
generating early warning information based on the target roadway support parameters and actual roadway support parameters corresponding to the simulation roadway;
and outputting the early warning information.
9. A rock burst roadway support parameter determining device is characterized by comprising:
the first processing module is used for constructing an initial roadway model corresponding to the simulation roadway based on the engineering environment information corresponding to the simulation roadway;
the second processing module is used for optimizing the initial roadway model and determining a target roadway model based on historical data corresponding to the simulation roadway;
the third processing module is used for inputting parameters to be tested to the target roadway model and acquiring roadway deformation prediction data output by the target roadway model, wherein the parameters to be tested are support related parameters;
and the fourth processing module is used for determining target roadway support parameters corresponding to the simulation roadway based on the roadway deformation prediction data and the target support effect.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the method of determining rock burst roadway support parameters according to any one of claims 1 to 8.
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