Coal seam adaptive pressure relief borehole arrangement method and device based on high static load identification
By adaptively adjusting the drilling distance and azimuth angle, combined with the accurate prediction of high static load peaks, the problem of inequality distribution of coal seam elastic properties in traditional technology is solved, and the prevention and control effect of impact ground pressure is significantly improved.
Patent Information
- Application Number
- CN202510407073.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2045-04-02
AI Technical Summary
The drilling spacing and azimuth angle in the traditional pressure relief drilling construction parameters are fixed, and it is impossible to accurately deal with the non-uniform distribution of the elastic properties in the coal seam, resulting in poor impact pressure prevention and control effect.
By obtaining the monitoring data of arranged drills before the drilling holes to be arranged in the coal seam, calculating the impulse index, adaptively adjusting the drilling spacing and azimuth angle, accurately predicting the peak position of high static loads, updating the fitting curve, and determining the adaptive drilling arrangement plan.
The targeting and effectiveness of drilling position arrangement is improved, sufficient pressure relief of coal seams is achieved, and the impact ground pressure treatment effect is improved.
Smart Images

Figure CN119914290B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of coal mining, and in particular, to a method and device for arranging self-adaptive pressure-relief boreholes in coal seams based on high static load identification. Background Art
[0002] In related technologies, in order to avoid the risk of rock burst as much as possible during coal mining, boreholes are usually drilled in coal seams to reduce the elastic energy accumulated in the coal seams, thereby reducing the risk of rock burst induced by the accumulation of elastic energy. Currently, the borehole spacing and azimuth angle in traditional pressure-relief borehole construction parameters are fixed. However, the elastic energy accumulated in coal seams is not evenly distributed, and the degree of elastic energy accumulation in different regions and different directions is different, resulting in different impact hazards in different regions and different directions. Therefore, using this method for construction operations is out of touch with the actual distribution of rock burst hazards, and the purpose of accurately and fully relieving pressure on the coal seam cannot be achieved, resulting in poor prevention and control effects of rock burst. Summary of the Invention
[0003] To overcome the problems existing in related technologies, the present disclosure provides a method and device for arranging self-adaptive pressure-relief boreholes in coal seams based on high static load identification.
[0004] According to the first aspect of the embodiments of the present disclosure, a method for arranging self-adaptive pressure-relief boreholes in coal seams based on high static load identification is provided, including:
[0005] Obtain the monitoring data of each of the previous n arranged boreholes before the Kth borehole to be arranged in the coal seam, and calculate the induced impact index of each of the n arranged boreholes according to the monitoring data; the induced impact index is used to represent the degree of static load accumulation in the high static load accumulation area in the borehole; K is an integer greater than 2; n is an integer greater than 2 or equal to 2 and less than K; the n arranged boreholes are all arranged boreholes within a preset range from the Kth borehole;
[0006] Determine the spacing self-adaptive adjustment coefficient between the Kth borehole and the (K - 1)th borehole according to the induced impact indices of the (K - 1)th borehole and the (K - 2)th borehole respectively; the (K - 2)th borehole, the (K - 1)th borehole, and the Kth borehole are arranged in sequence;
[0007] Determine the opening position of the Kth borehole according to the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole and the spacing self-adaptive adjustment coefficient;
[0008] Determine the hole depth positions corresponding to the high static load peaks of each of the n arranged boreholes, and perform fitting processing on the hole depth positions corresponding to each of the n arranged boreholes to obtain a first fitting curve and the fitting function corresponding to the first fitting curve;
[0009] Predict the high static load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function;
[0010] Update the first fitting curve by using the high static load peak position to obtain an updated first fitting curve;
[0011] Generate a perpendicular line to the updated first fitting curve based on the opening position, determine the azimuth angle of the Kth borehole according to the perpendicular line; arrange the Kth borehole according to the opening position and the azimuth angle, assign K as K + 1, and return to execute the step of obtaining the monitoring data of the previous n arranged boreholes of the Kth borehole to be arranged in the coal seam until all borehole operations of the coal seam are completed.
[0012] In some embodiments of the present application, each hole depth position in the borehole corresponds to a set of the monitoring data; the calculating the induced impact indexes of the n arranged boreholes according to the monitoring data includes:
[0013] For each of the n arranged boreholes, respectively execute the following steps:
[0014] For each hole depth position in the borehole, calculate the static load accumulation index of the hole depth position according to the monitoring data corresponding to the hole depth position;
[0015] Perform a fitting process on the static load accumulation indexes corresponding to each hole depth position to obtain a second fitting curve;
[0016] Perform a first derivative on the second fitting curve, and select the static load accumulation index corresponding to the hole depth position where the derivative result is less than or equal to a preset threshold as the stable value; wherein, the static load accumulation index corresponding to the hole depth position is a non-static load index peak;
[0017] Generate a perpendicular line to the vertical axis through the stable value, and use the area formed by the intersection of the perpendicular line and the first fitting curve as the high static load accumulation area;
[0018] Perform an integral calculation on the high static load accumulation area to obtain the induced impact index.
[0019] In some embodiments of the present application, the determining the spacing adaptive adjustment coefficient between the Kth borehole and the (K - 1)th borehole according to the induced impact indexes of the (K - 1)th borehole and the (K - 2)th borehole includes:
[0020] Calculate the difference between the induced impact indexes of the (K - 1)th borehole and the (K - 2)th borehole to obtain an induced impact index change amount;
[0021] The following formula is used to calculate the spacing adaptive adjustment coefficient B K :
[0022] B K = -1 * HRBI / HRBI K-1
[0023] Wherein, HRBI is the change amount of the induced impulse index, and HRBI K-1 is the induced impulse index of the (K - 1)th borehole.
[0024] In some embodiments of the present application, determining the opening position of the Kth borehole according to the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole and the spacing adaptive adjustment coefficient includes:
[0025] The second hole spacing D between the Kth borehole and the (K - 1)th borehole is calculated by the following formula K :
[0026] D K = (1 + B K ) * D K-1
[0027] Wherein, B K is the spacing adaptive adjustment coefficient, and D K-1 is the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole;
[0028] Obtain the position coordinates of the (K - 1)th borehole, and determine the opening position of the Kth borehole according to the position coordinates and the second hole spacing D K determine the opening position of the Kth borehole.
[0029] In some embodiments of the present application, before obtaining the position coordinates of the (K - 1)th borehole and determining the opening position of the Kth borehole according to the position coordinates and the second hole spacing D K it further includes:
[0030] When the second hole spacing is less than or equal to the preset minimum borehole spacing, assign the second hole spacing to the minimum borehole spacing;
[0031] When the second hole spacing is greater than or equal to the preset maximum borehole spacing, assign the second hole spacing to the maximum borehole spacing.
[0032] In some embodiments of the present application, after obtaining the azimuth angle of the Kth borehole according to the angle between the perpendicular line and the roadway heading direction, it further includes:
[0033] In the case where the azimuth does not fall within the preset azimuth interval, assign the azimuth to a preset angle; the preset angle is the value closest to the azimuth among the maximum and minimum values of the preset azimuth interval.
[0034] According to a second aspect of the embodiments of the present disclosure, there is provided a device for arranging self - adaptive pressure - relief boreholes in a coal seam based on high - static - load identification, including:
[0035] A calculation unit, configured to obtain the monitoring data of each of the n arranged boreholes before the K - th borehole to be arranged in the coal seam, and calculate the induced - impulse index of each of the n arranged boreholes according to the monitoring data; the induced - impulse index is used to represent the static - load accumulation degree of the high - static - load accumulation area in the borehole; K is an integer greater than 2; n is an integer greater than 2 or equal to 2 and less than K; the n arranged boreholes are all the arranged boreholes within a preset range from the K - th borehole;
[0036] A first determination unit, configured to determine the spacing self - adaptive adjustment coefficient between the K - th borehole and the (K - 1) - th borehole according to the induced - impulse indexes of the (K - 1) - th borehole and the (K - 2) - th borehole respectively; the (K - 2) - th borehole, the (K - 1) - th borehole, and the K - th borehole are arranged in sequence;
[0037] A second determination unit, configured to determine the opening position of the K - th borehole according to the first hole spacing between the (K - 1) - th borehole and the (K - 2) - th borehole and the spacing self - adaptive adjustment coefficient;
[0038] A fitting unit, configured to determine the hole - depth positions corresponding to the high - static - load peaks of each of the n arranged boreholes, perform fitting processing on the hole - depth positions corresponding to each of the n arranged boreholes to obtain a first fitting curve and the fitting function corresponding to the first fitting curve;
[0039] A third determination unit, configured to predict the high - static - load peak position corresponding to the opening position of the K - th borehole according to the opening position and the fitting function;
[0040] An updating unit, configured to update the first fitting curve by using the high - static - load peak position to obtain an updated first fitting curve;
[0041] A generating unit, based on the opening position, generates a perpendicular line of the updated first fitting curve, determines the azimuth of the K - th borehole according to the perpendicular line; an arranging unit, configured to arrange the K - th borehole according to the borehole position and the azimuth, assign K to K + 1, and return to execute the step of obtaining the monitoring data of each of the n arranged boreholes before the K - th borehole to be arranged in the coal seam until all borehole operations of the coal seam are completed.
[0042] According to a third aspect of the embodiments of the present disclosure, an electronic device includes: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the method described in any one of the first aspects is implemented.
[0043] According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method described in any one of the first aspects is implemented.
[0044] According to a fifth aspect of the embodiments of the present disclosure, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the method described in any one of the first aspects is implemented.
[0045] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: By obtaining the monitoring data of each of the n previously arranged drill holes before the Kth drill hole to be arranged in the coal seam, calculating the impulse induction index of each of the n previously arranged drill holes according to the monitoring data; determining the spacing adaptive adjustment coefficient between the Kth drill hole and the (K - 1)th drill hole according to the impulse induction indexes of the (K - 1)th drill hole and the (K - 2)th drill hole respectively; determining the opening position of the Kth drill hole according to the first hole spacing between the (K - 1)th drill hole and the (K - 2)th drill hole and the spacing adaptive adjustment coefficient; determining the hole depth positions corresponding to the high static load peaks of each of the n previously arranged drill holes, performing fitting processing on the hole depth positions corresponding to each of the n previously arranged drill holes to obtain a first fitting curve and a fitting function corresponding to the first fitting curve; predicting the high static load peak position corresponding to the opening position of the Kth drill hole according to the opening position and the fitting function; updating the first fitting curve by using the high static load peak position to obtain an updated first fitting curve; generating a perpendicular line of the updated first fitting curve based on the opening position, and determining the azimuth angle of the Kth drill hole according to the perpendicular line; arranging the Kth drill hole according to the drill hole opening position and the azimuth angle. Using the impulse induction indexes of adjacent drill holes to determine the spacing adaptive adjustment coefficient, so that the hole spacing between the drill hole to be arranged and the adjacent drill holes can be adaptively adjusted according to the spacing adaptive adjustment coefficient, and the high static load distribution gradient in the static load aggregation area of the drill hole to be arranged is predicted by fitting the high static load peak position, so as to determine the azimuth angle by using the perpendicular line of the fitting curve, and arranging the drill hole to be arranged according to the adaptively determined drill hole spacing and azimuth angle, improving the targeting and effectiveness of the drill hole position arrangement, and further being able to fully relieve the pressure of the coal seam and enhancing the treatment effect of rock burst.
[0046] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.
[0048] Figure 1 is a flowchart of a method for arranging self - adaptive pressure - relief boreholes in coal seams based on high static load identification shown according to an exemplary embodiment.
[0049] Figure 2 is a schematic diagram of a second fitting curve proposed in an embodiment of the present application.
[0050] Figure 3 is a schematic diagram of a first fitting curve proposed in an embodiment of the present application.
[0051] Figure 4 is a contour map of static load distribution proposed in an embodiment of the present application.
[0052] Figure 5 is a plan view of borehole arrangement before self - adaptive adjustment proposed in an embodiment of the present application.
[0053] Figure 6 is a plan view of borehole arrangement after self - adaptive adjustment proposed in an embodiment of the present application.
[0054] Figure 7 is a block diagram of a device for arranging self - adaptive pressure - relief boreholes in coal seams based on high static load identification shown according to an exemplary embodiment.
[0055] Figure 8 is a block diagram of a device for a method for arranging self - adaptive pressure - relief boreholes in coal seams based on high static load identification shown according to an exemplary embodiment.
[0056] Reference numerals
[0057] 11 - High static load accumulation area; 12 - High static load peak position; 13 - First fitting curve. Detailed implementation manners
[0058] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.
[0059] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise.
[0060] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "when" as used herein may be interpreted as "when" or "while" or "in response to determining".
[0061] In addition, various forms of processes shown in the embodiments of the present disclosure can be used, with steps reordered, added, or deleted. For example, the steps described in this application can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and no limitations are imposed herein.
[0062] In the related art, in order to avoid the risk of rock burst as much as possible during coal mining, the method of drilling holes in the coal seam is usually adopted to reduce the elastic energy accumulated in the coal seam, thereby reducing the risk of rock burst induced by excessive elastic energy. Currently, the drilling spacing and azimuth angle in the traditional pressure relief drilling construction parameters are fixed. However, the elastic energy accumulated in the coal seam is not evenly distributed, and the risk levels of rock burst in different regions and different directions are also different. Therefore, using this method for construction operations is out of touch with the actual distribution of rock burst risks and cannot achieve the purpose of accurately and fully relieving the pressure of the coal seam, resulting in poor prevention and control effects of rock burst.
[0063] To solve the above problems, the present disclosure provides a method and device for arranging self-adaptive pressure-relief boreholes in a coal seam based on self-high-static-load identification. By obtaining the monitoring data of each of the n previously arranged boreholes before the Kth borehole to be arranged in the coal seam, calculating the induced-impulse index of each of the n previously arranged boreholes according to the monitoring data; determining the spacing self-adaptive adjustment coefficient between the Kth borehole and the (K - 1)th borehole according to the induced-impulse indices of the (K - 1)th borehole and the (K - 2)th borehole respectively; determining the opening position of the Kth borehole according to the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole and the spacing self-adaptive adjustment coefficient; determining the hole-depth positions corresponding to the high-static-load peaks of each of the n previously arranged boreholes, performing fitting processing on the hole-depth positions corresponding to each of the n previously arranged boreholes to obtain a first fitting curve and a fitting function corresponding to the first fitting curve; predicting the high-static-load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function; updating the first fitting curve by using the high-static-load peak position to obtain an updated first fitting curve; generating a perpendicular line of the updated first fitting curve based on the opening position, and determining the azimuth angle of the Kth borehole according to the perpendicular line; arranging the Kth borehole according to the borehole opening position and the azimuth angle. By using the induced-impulse indices of adjacent boreholes to determine the spacing self-adaptive adjustment coefficient, the hole spacing between the borehole to be arranged and the adjacent boreholes can be adaptively adjusted according to the spacing self-adaptive adjustment coefficient, and the high-static-load distribution gradient in the static-load accumulation area of the borehole to be arranged is predicted by fitting the high-static-load peak position, so as to determine the azimuth angle by using the perpendicular line of the fitting curve, and arrange the borehole to be arranged according to the adaptively determined borehole spacing and azimuth angle, which improves the targeting and effectiveness of the borehole position arrangement, and further can fully relieve the pressure of the coal seam and improve the control effect of rock burst.
[0064] Figure 1 is a flowchart of a method for arranging self-adaptive pressure-relief boreholes in a coal seam based on self-high-static-load identification shown according to an exemplary embodiment, as Figure 1 shown. It should be noted that the method for arranging self-adaptive pressure-relief boreholes in a coal seam based on self-high-static-load identification in the embodiments of the present disclosure is applied to a device for arranging self-adaptive pressure-relief boreholes in a coal seam based on self-high-static-load identification. As Figure 1 shown, the method may include the following steps:
[0065] Step 101, obtain the monitoring data of each of the n previously arranged boreholes before the Kth borehole to be arranged in the coal seam, and calculate the induced-impulse index of each of the n previously arranged boreholes according to the monitoring data.
[0066] Among them, the induced-impulse index is used to represent the static-load accumulation degree in the high-static-load accumulation area in the borehole; K is an integer greater than 2; n is an integer greater than 2 or equal to 2 and less than K; the n previously arranged boreholes are all the previously arranged boreholes within a preset range from the Kth borehole.
[0067] In one embodiment, the above monitoring data may include any combination of the following data:
[0068] Coal powder weight, rotational speed, torque, thrust force, thrust speed.
[0069] It can be understood that, in order to more accurately locate the specific opening position of the Kth drill hole to be arranged, that is, the distance between the Kth drill hole to be arranged and the previous drill hole, the static load accumulation degree of n arranged drill holes (that is, the drilling operation has been completed) within a preset range from the Kth drill hole can be evaluated first, and an impulse induction index capable of evaluating the static load accumulation degree of the high static load accumulation area in the drill hole can be obtained, so as to determine the distance between the Kth drill hole and the previous drill hole.
[0070] It should be noted that when arranging the first drill hole and the second drill hole, the drill holes can be arranged according to a preset fixed value.
[0071] In some embodiments of the present application, each hole depth position in the drill hole corresponds to a set of monitoring data. The step of calculating the impulse induction index of each of the n arranged drill holes according to the monitoring data proposed in step 101 may specifically include the following steps:
[0072] For each of the n arranged drill holes, the following steps are respectively executed:
[0073] Step a1, for each hole depth position in the drill hole, calculate the static load accumulation index of the hole depth position according to the monitoring data corresponding to the hole depth position.
[0074] It can be understood that the static load accumulation index is used to evaluate the static load accumulation degree at a certain hole depth position in a drill hole.
[0075] In some embodiments of the present application, weights can be respectively configured for each monitoring data according to a preset weight configuration method, and the monitoring data at the same hole depth position are weighted and summed based on the configured weights to obtain the static load accumulation index.
[0076] As an example of a possible implementation manner, the CRITIC objective weighting method can be used to respectively configure weights for each monitoring data.
[0077] Step a2, perform fitting processing on the static load accumulation index corresponding to each hole depth position to obtain a second fitting curve.
[0078] Among them, the horizontal axis corresponding to the second fitting curve is the drill hole depth, and the vertical axis corresponding to the second fitting curve is the static load accumulation index.
[0079] In one embodiment, the second fitting curve is as Figure 2As shown, taking the drilling depth as the abscissa and the static load accumulation index as the ordinate, the static load accumulation index corresponding to each hole depth position is fitted to obtain a second fitting curve.
[0080] Step a3: Take the first derivative of the second fitting curve, and select the static load accumulation index corresponding to the hole depth position where the derivative result is less than or equal to a preset threshold as the stable value; among them, the static load accumulation index corresponding to the hole depth position is the non-static load index peak.
[0081] Step a4: Generate a perpendicular line to the vertical axis through the stable value, and take the area formed by the intersection of the perpendicular line and the first fitting curve as the high static load accumulation area.
[0082] In one embodiment, the above preset threshold is 0 or approaches 0.
[0083] In one embodiment, the above preset threshold can be the static load accumulation index corresponding to the position where the first derivative of the second fitting curve is 0 or approaches 0 as the stable value. Draw a perpendicular line from the point on the second fitting curve corresponding to the stable value to the vertical axis, and take the area formed by the intersection of the perpendicular line and the first fitting curve as the high static load accumulation area.
[0084] Step a5: Perform integral calculation on the second fitting curve corresponding to the high static load accumulation area to obtain the induced impulse index.
[0085] In one embodiment, as Figure 2 shown, draw a vertical auxiliary line from the static load stable value of 0.4 to the vertical coordinate. The area formed by the intersection of the vertical auxiliary line and the first fitting curve is the shaded area in the figure. Integrate the area of the shaded area to obtain the induced impulse index HRBI of the high static load accumulation area. The larger the value of this index, the higher the degree of impact risk in the high static load accumulation area.
[0086] Step 102: Determine the spacing adaptive adjustment coefficient between the Kth borehole and the (K - 1)th borehole according to the induced impulse indices of the (K - 1)th borehole and the (K - 2)th borehole respectively.
[0087] The (K - 2)th borehole, the (K - 1)th borehole, and the Kth borehole are arranged in sequence.
[0088] In some embodiments of the present application, step 103 may specifically include the following steps:
[0089] Calculate the difference between the induced impulse indices of the (K - 1)th borehole and the (K - 2)th borehole to obtain the change in the induced impulse index;
[0090] Calculate the spacing adaptive adjustment coefficient B using the following formula K :
[0091] B K=-1* HRBI / HRBI K-1
[0092] Among them, HRBI is the change amount of the induced impulse index, and HRBI K-1 is the induced impulse index of the (K - 1)-th borehole.
[0093] It can be understood that in order to accurately judge the static load accumulation degree of the K-th borehole in its high static load accumulation area, the change amount of the induced impulse index between the (K - 1)-th borehole and the (K - 2)-th borehole, which are relatively close to it, can be determined first. The change of the static load accumulation degree is reflected by the proportion of the change amount of the induced impulse index in the induced impulse index of the (K - 1)-th borehole, that is, through the adaptive adjustment coefficient B K to accurately quantify the change of the static load accumulation degree, and then based on the adaptive adjustment coefficient B K to accurately calculate the opening position of the K-th borehole.
[0094] Step 103: Determine the opening position of the K-th borehole according to the first hole spacing between the (K - 1)-th borehole and the (K - 2)-th borehole and the spacing adaptive adjustment coefficient.
[0095] In one embodiment, since the static load accumulation degree in adjacent areas usually changes gradually and there is usually no sudden change, therefore, based on the first hole spacing between the (K - 1)-th borehole and the (K - 2)-th borehole before the K-th borehole as the basis, and based on the adaptive adjustment coefficient B that can reflect the change of the static load accumulation degree K to determine the opening position of the K-th borehole, so as to be able to adaptively adjust the opening position of the borehole according to the static load accumulation situation.
[0096] In some embodiments of the present application, Step 103 may specifically include the following steps:
[0097] Step b1: Calculate the second hole spacing D between the K-th borehole and the (K - 1)-th borehole through the following formula K :
[0098] D K = (1 + B K ) * D K-1
[0099] Among them, B K is the spacing adaptive adjustment coefficient, and D K-1 is the first hole spacing between the (K - 1)-th borehole and the (K - 2)-th borehole.
[0100] It can be understood that when B KWhen the value is negative, shorten the hole spacing, at B K When the value is positive, increase the hole spacing.
[0101] Step b2, obtain the position coordinates of the (K - 1)-th drill hole, and determine the opening position of the K-th drill hole according to the position coordinates and the second hole spacing D K Determine the opening position of the K-th drill hole.
[0102] In one embodiment, determine the roadway alignment direction as the x-axis, and determine the perpendicular direction of the roadway alignment direction as the y-axis. After obtaining the position coordinates (x1, y1) of the (K - 1)-th drill hole, the opening position of the above-mentioned K-th drill hole is (x1 + B K , y1).
[0103] In some embodiments of the present application, before step b2, it may specifically further include:
[0104] When the second hole spacing is less than or equal to the preset minimum drill hole spacing, assign the second hole spacing to the minimum drill hole spacing;
[0105] When the second hole spacing is greater than or equal to the preset maximum drill hole spacing, assign the second hole spacing to the maximum drill hole spacing.
[0106] In one embodiment, in order to control the spacing between adjacent two drill holes within a certain range and avoid the situation of too large or too small hole spacing, the minimum drill hole spacing and the maximum drill hole spacing can be preset according to actual needs. When the second hole spacing is less than or equal to the preset minimum drill hole spacing, assign the second hole spacing to the minimum drill hole spacing. When the second hole spacing is greater than or equal to the preset maximum drill hole spacing, assign the second hole spacing to the maximum drill hole spacing.
[0107] Step 104, determine the hole depth positions corresponding to the high static load peaks of each of the n arranged drill holes, and perform fitting processing on the hole depth positions corresponding to each of the n arranged drill holes to obtain the first fitting curve and the fitting function corresponding to the first fitting curve.
[0108] It should be noted that the drill hole construction is generally carried out in advance at a certain distance ahead of the working face. The degree of static load accumulation in the drill hole construction area is related to the advance distance from the working face, that is, as the working face is mined and advanced, the degree of static load accumulation in the drill hole construction area in front of the working face will change. The first fitting curve can represent the distribution of the high static load peak positions in the roadway alignment direction, and the high static load peak position corresponding to the opening position of the K-th drill hole to be arranged can be determined according to the distribution.
[0109] In addition, the adjustment of the drilling azimuth angle is based on the distribution fitting curve of the high static load position in the roadway heading direction that is updated in real time. If the high static load peak position data of the boreholes that are far away from this borehole are involved in updating the fitting curve and then the azimuth angle of this borehole is adjusted, it will make the calculation result of the drilling azimuth angle lose timeliness. Therefore, every preset distance, the previous high static load peak position data should be removed, and the distribution fitting curve of the high static load position in the roadway heading direction should be refitted, that is, only the data corresponding to the arranged boreholes within the preset distance of the currently to-be-arranged borehole are fitted. Step 105, according to the opening position and the fitting function, predict the predicted hole depth position corresponding to the high static load peak position corresponding to the opening position of the Kth borehole.
[0110] Step 105, according to the opening position and the fitting function, predict the high static load peak position corresponding to the opening position of the Kth borehole.
[0111] In one embodiment, the above fitting function is y = f(x). Substitute the opening position as the value of x into the fitting function to obtain the y value, that is, obtain the high static load peak position corresponding to the opening position of the Kth borehole, where the high static load peak position is the position where the high static load peak corresponding to the above opening position is located.
[0112] Step 106, update the first fitting curve using the high static load peak position to obtain the updated first fitting curve.
[0113] In one embodiment, the predicted hole depth position and the hole depth positions corresponding to the high static load peaks of the above n arranged boreholes can be refitted to obtain the updated first fitting curve.
[0114] In one embodiment, as Figure 3 shown, borehole 4 is the currently to-be-arranged borehole, and boreholes 1 to 3 are the boreholes that have completed construction. Determine the coordinates of the positions 12 corresponding to the high static load peaks of each of boreholes 1 to 3, fit the above 3 position coordinates to obtain the distribution fitting curve of the high static load peak position in the roadway heading direction, that is, the above first fitting curve 13, and the fitting function corresponding to the first fitting curve 13. Substitute the opening position of borehole 4 into the fitting function to predict the high static load peak position corresponding to the opening position of borehole 4, and fit the hole depth position corresponding to the high static load peak position of the opening position of borehole 4 and the hole depth positions of the high static load peaks of boreholes 1 to 3 respectively to obtain the updated first fitting curve.
[0115] As Figure 4As shown, based on the first fitting curve of the high static load peak position in the roadway strike direction, within the area corresponding to this first fitting curve, taking this curve as the central position and moving towards both sides, the degree of static load accumulation gradually decreases. According to the degree of static load accumulation, the static load distribution nephogram within the area can be obtained.
[0116] In some embodiments of the present application, a non - linear regression fitting method can be used to fit the hole depth positions corresponding to n arranged boreholes respectively, obtaining the first fitting curve. Then, calculate the determination coefficient of the first fitting curve, and judge the fitting regression effect according to the size of the determination coefficient. When the determination coefficient is greater than or equal to the preset coefficient value, execute the step of generating a perpendicular line to the first fitting curve based on the opening position; when the determination coefficient is less than the preset coefficient value, it indicates that there may be geological structures, etc. in this area that cause sudden changes in the static load distribution. At this time, drill holes in the direction perpendicular to the roadway strike. In addition, in order to avoid the impact of the sudden change in the static load peak position data on the subsequent fitting process, starting from the next borehole to be arranged, the hole depth positions corresponding to the above - mentioned n arranged boreholes are no longer used for fitting, that is, refitting starts from the next borehole to be arranged.
[0117] Step 107: Generate a perpendicular line to the updated first fitting curve based on the opening position, and determine the azimuth angle of the K - th borehole according to the perpendicular line.
[0118] Among them, the perpendicular line includes the opening position.
[0119] It can be understood that the traditional drilling method is to directly drill in the direction perpendicular to the roadway strike direction. In the embodiments of the present application, in order to more fully relieve the pressure of the coal seam and reduce the degree of static load accumulation, the hole depth positions corresponding to the high static load peaks of different boreholes are fitted. Based on the first fitting curve obtained by fitting, the distribution of the high static load peaks at the current K - th borehole position and its adjacent area is predicted. According to the prediction result, the first fitting curve is further updated so that the updated fitting curve includes the high static load peak position corresponding to the K - th borehole position. Generate a perpendicular line from the opening position of the K - th borehole to the updated first fitting curve, and use the perpendicular line direction as the drilling azimuth angle for opening the hole. At this time, the drilling azimuth angle direction is the gradient direction of the increasing static load. The borehole corresponding to this azimuth angle has the best pressure relief effect. Therefore, the perpendicular line direction is the adjusted azimuth angle of the K - th borehole, and the included angle between the perpendicular line direction and the perpendicular direction of the roadway strike is the adjustment angle (usually, the drilling azimuth angle is the perpendicular direction of the roadway strike direction, and the counter - clockwise adjustment direction is set as positive, and the clockwise direction is negative). Drilling in the above - mentioned direction can maximize the pressure relief of the coal seam and effectively improve the prevention and control effect of rock burst.
[0120] For example, such as Figure 5 and Figure 6As shown in the figure, the drilling direction before the azimuth angle adaptive adjustment is perpendicular to the roadway heading direction. The distance between borehole 1 and borehole 2 is 300 mm. The impulse induction indexes in the high static load accumulation areas of borehole 1 and borehole 2 are both 10. The distance of borehole 3 is not adjusted, and the opening position of borehole 3 is determined. According to the coordinates 12 of the corresponding positions of the high static load peaks of borehole 1 and borehole 2, the distribution fitting curve (i.e., the first fitting curve 13) of the static load peak positions of borehole 1 and borehole 2 in the roadway heading direction is obtained. According to the opening position of borehole 3, the high static load peak position corresponding to the opening position of borehole 3 is predicted, the distribution fitting curve is updated, and a perpendicular line is drawn from the opening position of borehole 3 to this curve to obtain the adjusted azimuth angle of borehole 3. The azimuth angle adjustment angle is 1.7°. Above, the opening position and azimuth angle of borehole 3 are comprehensively determined.
[0121] Subsequently, borehole 3 is constructed. The impulse induction index in the high static load accumulation area of borehole 3 is obtained as 12. The adaptive adjustment coefficient of the distance between borehole 4 and borehole 3 is -1*(12 - 10) / 10 = -0.2. Then the distance between borehole 4 and borehole 3 is adjusted from 300 mm to 300*(1 - 0.2) = 240 mm, and the opening position of borehole 4 is determined. The actual high static load peak position of borehole 3 is obtained, and the distribution fitting curve of the high static load positions of borehole 1, borehole 2, and borehole 3 in the roadway heading direction is updated. According to the opening position of borehole 4, the high static load peak position corresponding to the opening position of borehole 4 is predicted, the distribution fitting curve is updated, and a perpendicular line is drawn from the opening position of borehole 4 to this curve to obtain the adjusted azimuth angle of borehole 4. The azimuth angle adjustment angle is 0.5°. Above, the opening position and azimuth angle of borehole 4 are comprehensively determined.
[0122] In some embodiments of the present application, after step 107, the method may further include:
[0123] In the case where the azimuth angle is greater than the preset angle, the azimuth angle is assigned the preset angle.
[0124] It can be understood that, in order to avoid interference with other adjacent boreholes caused by an excessive azimuth angle, the preset angle can be set in advance according to actual needs. In the case where the azimuth angle is greater than the preset angle, the azimuth angle is assigned the preset angle to improve the rationality of the borehole arrangement.
[0125] Step 108, arrange the Kth borehole according to the borehole position and azimuth angle, assign K as K + 1, and return to execute step 101 until all borehole operations in the coal seam are completed.
[0126] It should be noted that all the boreholes in the above coal seam refer to all the boreholes in the same row in the coal seam, that is, the opening positions of all the above boreholes can form a straight line parallel to the roadway heading direction after being connected.
[0127] The coal seam adaptive pressure relief borehole arrangement based on self-high static load identification proposed according to the embodiments of the present disclosure obtains the monitoring data of each of the n previously arranged boreholes before the Kth borehole to be arranged in the coal seam, and calculates the induced impulse index of each of the n previously arranged boreholes according to the monitoring data; determines the spacing adaptive adjustment coefficient between the Kth borehole and the (K - 1)th borehole according to the induced impulse indices of the (K - 1)th borehole and the (K - 2)th borehole respectively; determines the opening position of the Kth borehole according to the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole and the spacing adaptive adjustment coefficient; determines the hole depth positions corresponding to the high static load peaks of each of the n previously arranged boreholes, performs fitting processing on the hole depth positions corresponding to each of the n previously arranged boreholes to obtain a first fitting curve and a fitting function corresponding to the first fitting curve; predicts the high static load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function; updates the first fitting curve by using the high static load peak position to obtain an updated first fitting curve; generates a perpendicular line of the updated first fitting curve based on the opening position, and determines the azimuth angle of the Kth borehole according to the perpendicular line; arranges the Kth borehole according to the borehole position and the azimuth angle. By using the induced impulse indices of adjacent boreholes to determine the spacing adaptive adjustment coefficient, the hole spacing between the borehole to be arranged and the adjacent boreholes can be adaptively adjusted according to the spacing adaptive adjustment coefficient, and the high static load distribution gradient in the high static load aggregation area of the borehole to be arranged is predicted by fitting the high static load peak position, so that the azimuth angle is determined by using the perpendicular line of the fitting curve, and the borehole to be arranged is arranged according to the adaptively determined borehole spacing and azimuth angle, which improves the targeting and effectiveness of the borehole position arrangement, and further enables the coal seam to be fully pressure relieved, improving the prevention and control effect of rock burst.
[0128] Figure 7 FIG. is a block diagram of a device for coal seam adaptive pressure relief borehole arrangement based on self-high static load identification shown according to an exemplary embodiment. Referring to Figure 7 FIG., the device includes a calculation unit 701, a first determination unit 702, a second determination unit 703, a fitting unit 704, a third determination unit 705, an update unit 706, a generation unit 707, and an arrangement unit 708.
[0129] Among them, the calculation unit 701 is configured to obtain the monitoring data of each of the n previously arranged boreholes before the Kth borehole to be arranged in the coal seam, and calculate the induced impulse index of each of the n previously arranged boreholes according to the monitoring data; the induced impulse index is used to represent the static load accumulation degree in the high static load accumulation area in the borehole; K is an integer greater than 2; n is an integer greater than 2 or equal to 2 and less than K; the n previously arranged boreholes are all the previously arranged boreholes within a preset range from the Kth borehole;
[0130] The first determination unit 702 is configured to determine an adaptive adjustment coefficient of the spacing between the Kth borehole and the (K - 1)th borehole according to the induced punching indexes of the (K - 1)th borehole and the (K - 2)th borehole respectively; the (K - 2)th borehole, the (K - 1)th borehole, and the Kth borehole are arranged in sequence;
[0131] The second determination unit 703 is configured to determine the opening position of the Kth borehole according to the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole and the adaptive adjustment coefficient of the spacing;
[0132] The fitting unit 704 is configured to determine the hole depth positions corresponding to the high static load peaks of each of the n arranged boreholes, perform fitting processing on the hole depth positions corresponding to each of the n arranged boreholes, and obtain a first fitting curve and a fitting function corresponding to the first fitting curve;
[0133] The third determination unit 705 is configured to predict the high static load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function;
[0134] The updating unit 706 is configured to update the first fitting curve by using the high static load peak position to obtain an updated first fitting curve;
[0135] The generating unit 707 generates a perpendicular line of the updated first fitting curve based on the opening position, and determines the azimuth angle of the Kth borehole according to the perpendicular line;
[0136] The arranging unit 708 is configured to arrange the Kth borehole according to the borehole position and the azimuth angle, assign K to K + 1, and return to execute the step of obtaining the monitoring data of each of the previous n arranged boreholes of the Kth borehole to be arranged in the coal seam until all borehole operations of the coal seam are completed.
[0137] In some embodiments of the present application, each hole depth position in the borehole corresponds to a set of monitoring data. Specifically, the first determination unit 702 is configured to:
[0138] For each of the n arranged boreholes, the following steps are respectively executed:
[0139] For each hole depth position in the borehole, calculate the static load accumulation index of the hole depth position according to the monitoring data corresponding to the hole depth position;
[0140] Perform fitting processing on the static load accumulation indexes corresponding to each hole depth position to obtain a second fitting curve;
[0141] Perform a first derivative on the second fitting curve, and select the static load accumulation index corresponding to the hole depth position where the derivative result is greater than, less than, or equal to a preset threshold as a stable value; wherein, the static load accumulation index corresponding to the hole depth position is a non-static load index peak;
[0142] Generate a perpendicular line to the vertical axis through the stable value, and take the area formed by the intersection of the perpendicular line and the first fitting curve as the high static load accumulation area;
[0143] Integrate the high static load accumulation area to obtain the induced impulse index.
[0144] In some embodiments of the present application, the second determination unit 703 is specifically configured to:
[0145] Calculate the difference between the induced impulse indices of the (K - 1)-th borehole and the (K - 2)-th borehole to obtain the change in the induced impulse index;
[0146] Calculate the spacing adaptive adjustment coefficient B using the following formula K :
[0147] B K = -1 * HRBI / HRBI K-1
[0148] where, HRBI is the change in the induced impulse index, and HRBI K-1 is the induced impulse index of the (K - 1)-th borehole.
[0149] In some embodiments of the present application, the second determination unit 703 is specifically configured to:
[0150] Calculate the second hole spacing D between the K-th borehole and the (K - 1)-th borehole using the following formula K :
[0151] D K = (1 + B K ) * D K-1
[0152] where, B K is the spacing adaptive adjustment coefficient, and D K-1 is the first hole spacing between the (K - 1)-th borehole and the (K - 2)-th borehole;
[0153] Obtain the position coordinates of the (K - 1)-th borehole, and determine the opening position of the K-th borehole according to the position coordinates and the second hole spacing D K Determine the opening position of the K-th borehole.
[0154] In some embodiments of the present application, the second determination unit 703 is further specifically configured to:
[0155] In the case where the second hole spacing is less than or equal to the preset minimum borehole spacing, assign the second hole spacing to the minimum borehole spacing;
[0156] In the case where the second hole spacing is greater than or equal to the preset maximum borehole spacing, assign the second hole spacing to the maximum borehole spacing.
[0157] In some embodiments of the present application, the device may further include an assignment unit configured to assign the azimuth angle to a preset angle when the azimuth angle does not fall within a preset azimuth angle interval; the preset angle is the value closest to the azimuth angle among the maximum and minimum values of the preset azimuth angle interval.
[0158] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated herein.
[0159] The device for arranging coal seam adaptive pressure relief boreholes based on self-high static load identification according to an embodiment of the present disclosure obtains the monitoring data of each of the n previously arranged boreholes before the Kth borehole to be arranged in the coal seam, calculates the induced impulse index of each of the n previously arranged boreholes according to the monitoring data; determines the spacing adaptive adjustment coefficient between the Kth borehole and the (K - 1)th borehole according to the induced impulse indices of the (K - 1)th borehole and the (K - 2)th borehole; determines the opening position of the Kth borehole according to the first hole spacing between the (K - 1)th borehole and the (K - 2)th borehole and the spacing adaptive adjustment coefficient; determines the hole depth positions corresponding to the high static load peaks of each of the n previously arranged boreholes, performs fitting processing on the hole depth positions corresponding to each of the n previously arranged boreholes to obtain a first fitting curve and a fitting function corresponding to the first fitting curve; predicts the high static load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function; updates the first fitting curve by using the high static load peak position to obtain an updated first fitting curve; generates a perpendicular line of the updated first fitting curve based on the opening position, and determines the azimuth angle of the Kth borehole according to the perpendicular line; arranges the Kth borehole according to the borehole position and the azimuth angle. By using the induced impulse indices of adjacent boreholes to determine the spacing adaptive adjustment coefficient, the hole spacing between the borehole to be arranged and the adjacent boreholes can be adaptively adjusted according to the spacing adaptive adjustment coefficient, and the high static load distribution gradient in the static load aggregation area of the borehole to be arranged is predicted by fitting the high static load peak position, so as to determine the azimuth angle by using the perpendicular line of the fitting curve, and arrange the borehole to be arranged according to the adaptively determined borehole spacing and azimuth angle, which improves the targeting and effectiveness of the borehole position arrangement, and further enables sufficient pressure relief of the coal seam and improves the prevention and control effect of rock bursts.
[0160] Figure 8 It is a block diagram of a device for a method of arranging coal seam adaptive pressure relief boreholes based on self-high static load identification shown according to an exemplary embodiment. For example, the device 800 may be an electronic device, such as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
[0161] Reference Figure 8 Referring to Figure 8 , device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.
[0162] Processing component 802 generally controls the overall operation of device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-described methods. In addition, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
[0163]
[0162] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phone book data, messages, pictures, videos, and the like. Memory 804 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.
[0164] Power component 806 provides power to the various components of device 800. Power component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 800.
[0165] The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also detect the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.
[0166] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when the device 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting audio signals.
[0167] The I / O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which can be a keyboard, a click wheel, buttons, etc. These buttons can include, but are not limited to: a home button, a volume button, a power button, and a lock button.
[0168] The sensor component 814 includes one or more sensors for providing an assessment of the state of the device 800 in various aspects. For example, the sensor component 814 can detect the on / off state of the device 800, the relative positioning of components, such as the display and the keypad of the device 800. The sensor component 814 can also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration / deceleration of the device 800, and the temperature change of the device 800. The sensor component 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 814 can also include a light sensor, such as a CMOS or a CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
[0169] The communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
[0170] In an exemplary embodiment, the device 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above method.
[0171] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, is also provided. The above instructions may be executed by the processor 820 of the device 800 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.
[0172] In an exemplary embodiment, a computer program product including a computer program is also provided. The computer program implements the above method when executed by the processor 820 of the device 800.
[0173] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed herein. The specification and embodiments are only to be considered exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.
[0174] It should be understood that the present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the present invention is only limited by the appended claims.
Claims
1. A method for arranging coal seam self-adaptive pressure relief drilling holes based on high static load identification, characterized in that: include: Acquire monitoring data of n arranged boreholes before the Kth borehole to be arranged in the coal seam, wherein the monitoring data includes any of the following data: coal powder weight, rotation speed, torque, propulsion force, propulsion speed; calculate the impulse induction index of each of the n arranged boreholes according to the monitoring data; the impulse induction index is used to indicate the degree of static load accumulation in the high static load accumulation area in the borehole; The CRITIC objective weighting method is used to configure weights for each monitoring data, and the monitoring data at the same hole depth are weighted and summed based on the configured weights to obtain the static load accumulation index; K is an integer greater than 2; n is an integer greater than 2 or equal to 2 and less than K; the n arranged boreholes are all arranged boreholes within a preset range from the Kth borehole; According to the respective impulse induction indexes of the K-1th borehole and the K-2th borehole, the adaptive adjustment coefficient B of the spacing between the K-1th borehole and the K-1th borehole is determined. K :B K =-1* HRBI / HRBI K-1 ,in, HRBI is the change in the impulse index. K-1 is the impulse induction index of the K-1th borehole; the K-2th borehole, the K-1th borehole and the Kth borehole are arranged in sequence; Determining a hole opening position of the Kth borehole according to a first hole spacing between the K-1th borehole and the K-2th borehole and the spacing adaptive adjustment coefficient; Determine the hole depth position corresponding to the high static load peak of each of the n arranged drill holes, perform fitting processing on the hole depth position corresponding to each of the n arranged drill holes, and obtain a first fitting curve and a fitting function corresponding to the first fitting curve; Predicting the high static load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function; updating the first fitting curve using the high static load peak position to obtain an updated first fitting curve; generating a perpendicular line of the updated first fitting curve based on the opening position, and determining the azimuth of the Kth borehole according to the perpendicular line; Arrange the Kth borehole according to the opening position and the azimuth, assign K a value of K+1, and return to execute the step of obtaining the monitoring data of the n arranged boreholes before the Kth borehole to be arranged in the coal seam until all drilling operations of the coal seam are completed.
2. The method for arranging coal seam adaptive pressure relief drilling holes based on high static load identification according to claim 1 is characterized in that: Each hole depth position in the borehole corresponds to a set of monitoring data; The step of calculating the impulse induction index of each of the n arranged boreholes according to the monitoring data comprises: For each of the n arranged boreholes, the following steps are performed respectively: For each hole depth position in the borehole, calculating the static load accumulation index of the hole depth position according to the monitoring data corresponding to the hole depth position; Fitting the static load accumulation index corresponding to each hole depth position to obtain a second fitting curve; the horizontal axis corresponding to the second fitting curve is the drilling depth, and the vertical axis corresponding to the second fitting curve is the static load accumulation index; The second fitting curve is derived once, and the static load accumulation index corresponding to the hole depth position whose derivative result is less than or equal to the preset threshold is selected as the stable value; wherein the static load accumulation index corresponding to the hole depth position is the non-static load index peak value; Generate a vertical line of the longitudinal axis through the stable value, and use the area formed by the intersection of the vertical line and the first fitting curve as a high static load accumulation area; The high static load accumulation area is integrated and calculated to obtain the impulse induction index.
3. The method for arranging coal seam adaptive pressure relief drilling holes based on high static load identification according to claim 1 is characterized in that: The step of determining the adaptive adjustment coefficient of the spacing between the Kth borehole and the K-1th borehole according to the respective impulse induction indexes of the K-1th borehole and the K-2th borehole comprises: Calculating the difference between the impulse induction index of the K-1th borehole and the K-2th borehole to obtain the change of the impulse induction index; The spacing adaptive adjustment coefficient B is calculated using the following formula: K : B K =-1* HRBI / HRBI K-1 in, HRBI is the change in the impulse index. K-1 is the impulse index of the K-1th borehole.
4. The method for arranging coal seam adaptive pressure relief drilling holes based on high static load identification according to claim 1, characterized in that: The determining the opening position of the Kth borehole according to the first hole spacing between the K-1th borehole and the K-2th borehole and the spacing adaptive adjustment coefficient includes: The second hole spacing D between the Kth borehole and the K-1th borehole is calculated by the following formula: K : D K =(1+B K ) * D K-1 Among them, B K is the spacing adaptive adjustment coefficient, D K-1 is the first hole spacing between the K-1th borehole and the K-2th borehole; Get the position coordinates of the K-1th drilling hole, and according to the position coordinates and the second hole spacing D K Determine the opening position of the Kth drill hole.
5. The method for arranging coal seam adaptive pressure relief drilling holes based on high static load identification according to claim 4 is characterized in that: In the step of obtaining the position coordinates of the K-1th drilling hole, according to the position coordinates and the second hole spacing D K Before determining the opening position of the Kth borehole, the method further includes: When the second hole spacing is less than or equal to the preset minimum drilling spacing value, assigning the second hole spacing to the minimum drilling spacing value; When the second hole spacing is greater than or equal to a preset maximum drilling spacing, the second hole spacing is assigned the maximum drilling spacing.
6. The method for arranging coal seam adaptive pressure relief drilling holes based on high static load identification according to claim 1, characterized in that: After obtaining the azimuth of the Kth borehole according to the vertical line, the method further includes: When the azimuth angle does not fall within a preset azimuth angle interval, the azimuth angle is assigned a preset angle; the preset angle is a value closest to the azimuth angle between the maximum value and the minimum value of the preset azimuth angle interval.
7. An adaptive pressure relief drilling arrangement device based on coal seam high static load identification, characterized in that: include: A calculation unit is used to obtain monitoring data of n arranged boreholes before the Kth borehole to be arranged in the coal seam, wherein the monitoring data includes any multiple of the following data: coal powder weight, rotation speed, torque, propulsion force, propulsion speed; calculate the impulse induction index of each of the n arranged boreholes according to the monitoring data; the impulse induction index is used to indicate the degree of static load accumulation in the high static load accumulation area in the borehole; The CRITIC objective weighting method is used to configure weights for each monitoring data, and the monitoring data at the same hole depth are weighted and summed based on the configured weights to obtain the static load accumulation index; K is an integer greater than 2; n is an integer greater than 2 or equal to 2 and less than K; the n arranged boreholes are all arranged boreholes within a preset range from the Kth borehole; The first determining unit is used to determine the adaptive adjustment coefficient of the spacing between the Kth borehole and the K-1th borehole according to the respective impulse induction indexes of the K-1th borehole and the K-2th borehole: B K =-1* HRBI / HRBI K-1 ,in, HRBI is the change in the impulse index. K-1 is the impulse induction index of the K-1th borehole; the K-2th borehole, the K-1th borehole and the Kth borehole are arranged in sequence; A second determining unit, configured to determine a hole opening position of the Kth borehole according to a first hole spacing between the K-1th borehole and the K-2th borehole and the spacing adaptive adjustment coefficient; A fitting unit, used to determine the hole depth position corresponding to the high static load peak of each of the n arranged drill holes, and perform fitting processing on the hole depth position corresponding to each of the n arranged drill holes to obtain a first fitting curve and a fitting function corresponding to the first fitting curve; A third determination unit predicts a high static load peak position corresponding to the opening position of the Kth borehole according to the opening position and the fitting function; An updating unit, configured to update the first fitting curve using the high static load peak position to obtain an updated first fitting curve; A generating unit is used to generate a perpendicular line of the updated first fitting curve based on the opening position, and determine the azimuth of the Kth borehole according to the perpendicular line; an arranging unit is used to arrange the Kth borehole according to the borehole position and the azimuth, assign K a value of K+1, and return to execute the step of obtaining the monitoring data of each of the n arranged boreholes before the Kth borehole to be arranged in the coal seam, until all drilling operations of the coal seam are completed.
8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.
10. A computer program product, comprising a computer program, characterized in that The computer program implements the method according to any one of claims 1 to 6 when executed by a processor.
Citation Information
Patent Citations
Coal seam self-adaptive reaming pressure relief method and device based on high static load identification
CN119914289A