Rock mass cuttability testing system and testing method

Abstract

The present invention provides a control device, a rock mass cuttability testing system and a testing method, relating to the technical field of rock mass property testing. The device includes: a main control module electrically connected to a signal acquisition module and a driving module respectively; the driving module is also key-connected to an actuator; the main control module is configured to obtain multiple drilling parameters of the actuator and send a control signal to the driving module according to the multiple drilling parameters; the driving module is configured to drive the actuator to drill according to the control signal; the signal acquisition module is configured to obtain multiple sensor data during the drilling process and send each sensor data to the main control module; the main control module is further configured to determine a drilling curve according to the multiple sensor data, and determine a rock mass cuttability characteristic parameter according to the drilling curve, and the rock mass cuttability characteristic parameter is used to determine the rock mass cuttability characteristic. While realizing in-situ testing, the present invention greatly improves the testing convenience and testing efficiency of the rock mass cuttability characteristic, and saves labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of rock mass property testing, and in particular, to a control device, a rock mass cuttability testing system and a testing method. Background Art

[0002] The currently commonly used method for testing the cuttability of rocks is as follows: drill holes in the rock mass to obtain core samples, and then bring the core samples back to the laboratory for performance testing. The traditional methods of drilling and coring and laboratory testing are time-consuming and laborious, and the testing efficiency is low. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and provide a control device, a rock mass cuttability testing system and a testing method. The present invention provides the following technical solutions:

[0004] In a first aspect, the present invention provides a control device, which includes: a main control module, a signal acquisition module and a drive module; the main control module is electrically connected to the signal acquisition module and the drive module respectively; the drive module is also key-connected to an actuator;

[0005] The main control module is configured to obtain multiple drilling parameters of the actuator and send a control signal to the drive module according to the multiple drilling parameters; the drive module is configured to drive the actuator to drill according to the control signal; the signal acquisition module is configured to obtain multiple sensor data during the drilling process and send each of the sensor data to the main control module; the main control module is further configured to determine a drilling curve according to the multiple sensor data, and determine a rock mass cuttability characteristic parameter according to the drilling curve, and the rock mass cuttability characteristic parameter is used to determine the rock mass cuttability characteristic.

[0006] In an embodiment, the device further includes: at least one interaction module electrically connected to the main control module; the at least one interaction module is configured to obtain an interaction signal, determine the multiple drilling parameters according to the interaction signal, and send each of the drilling parameters to the main control module.

[0007] In an embodiment, the multiple sensor data includes: the output rotation speed of the drive module, and the main control module includes: a curve determination unit, and the curve determination unit is electrically connected to the signal acquisition module and the at least one interaction module respectively; the curve determination unit is configured to obtain the output rotation speed from the signal acquisition module, determine the drilling curve according to the output rotation speed, and send the drilling curve to the at least one interaction module; the at least one interaction module is further configured to display the drilling curve.

[0008] In one embodiment, the plurality of sensor data further includes: output torque and drilling pressure. The main control module further includes an analysis unit, and the analysis unit is electrically connected to the curve determination unit and the signal acquisition module respectively;

[0009] The analysis unit is configured to obtain the output rotation speed, output torque and drilling pressure from the signal acquisition module; determine the bit rotation speed and drilling speed according to the output rotation speed;

[0010] Determine the rock mass inversion strength according to the bit rotation speed, the drilling speed, the output torque and the drilling pressure;

[0011] Obtain the drilling curve from the curve determination unit, and determine the rock mass structure integrity according to the drilling curve;

[0012] Determine the cuttable characteristic parameters of the rock mass according to the rock mass inversion strength and the rock mass structure integrity.

[0013] In one embodiment, the analysis unit includes: a first analysis subunit, electrically connected to the signal acquisition module; the first analysis subunit is configured to determine the rock mass inversion strength according to the bit rotation speed, the drilling speed, the output torque and the drilling pressure, and the formula is:

[0014]

[0015] Wherein, represents the rock mass inversion strength, represents the bit rotation speed, represents the output torque, represents the friction coefficient, represents the borehole radius, represents the drilling pressure, represents the drilling speed, represents the borehole cross-sectional area.

[0016] In one embodiment, the drilling curve includes a time history curve and a speed-time curve. The analysis unit further includes: a second analysis subunit, electrically connected to the curve determination unit; the second analysis subunit is configured to determine the fluctuation period according to the speed-time curve; determine the displacement difference within the fluctuation period according to the fluctuation period and the time history curve, and the formula is:

[0017]

[0018] Wherein, represents the displacement difference, represents the function corresponding to the time history curve, represents the start time of the fluctuation period, represents the end time of the fluctuation period, represents the error coefficient;

[0019] According to the drilling speed, determine the drilling depth within the fluctuation period, and the formula is:

[0020] ,

[0021] where, represents the drilling depth;

[0022] According to the drilling depth and the displacement difference, determine the interface dip angle, and the formula is:

[0023]

[0024] where, represents the interface dip angle;

[0025] Determine the integrity of the rock mass structure according to the interface dip angle.

[0026] In one embodiment, the analysis unit further includes: a third analysis subunit, which is electrically connected to the first analysis subunit and the second analysis subunit respectively;

[0027] The third analysis subunit is used to determine the cuttable characteristic parameter of the rock mass according to the rock mass inversion strength and the integrity of the rock mass structure, and the formula is:

[0028]

[0029] where, represents the cuttable characteristic parameter of the rock mass, represents the first cuttability coefficient, represents the reduction coefficient of rock mass hardness, represents the reduction coefficient of rock mass integrity, represents the integrity of the rock mass structure.

[0030] In one embodiment, the device further includes: a classification module, and the classification module is electrically connected to the main control module and the interaction module respectively; the classification module is used to determine the cuttable characteristic category of the rock mass according to the cuttable characteristic parameter of the rock mass, and send the cuttable characteristic category of the rock mass to the interaction module; the interaction module is further used to display the cuttable characteristic category of the rock mass.

[0031] In a second aspect, the present invention provides a rock mass cuttable characteristic testing system, and the system includes: an execution mechanism and the control device described in the first aspect, and the execution mechanism is key-connected to the control device.

[0032] In a third aspect, the present invention provides a method for testing the cuttability of rock masses, which is applied to the control device described in the first aspect. The method includes:

[0033] The main control module obtains multiple drilling parameters of the actuator and sends a control signal to the drive module according to the multiple drilling parameters;

[0034] The drive module drives the actuator to drill according to the control signal;

[0035] The signal acquisition module obtains multiple sensor data during the drilling process and sends each sensor data to the main control module;

[0036] The main control module determines a drilling curve according to the multiple sensor data, and determines a rock mass cuttability characteristic parameter according to the drilling curve. The rock mass cuttability characteristic parameter is used to determine the cuttability of the rock mass.

[0037] The control device, the rock mass cuttability characteristic testing system and the testing method provided by the present invention. The device includes: a main control module, a signal acquisition module and a drive module; the main control module is electrically connected to the signal acquisition module and the drive module respectively; the drive module is also key-connected to the actuator; the main control module is used to obtain multiple drilling parameters of the actuator and send a control signal to the drive module according to the multiple drilling parameters; the drive module is used to drive the actuator to drill according to the control signal; the signal acquisition module is used to obtain multiple sensor data during the drilling process and send each sensor data to the main control module; the main control module is also used to determine a drilling curve according to the multiple sensor data, and determine a rock mass cuttability characteristic parameter according to the drilling curve. The rock mass cuttability characteristic parameter is used to determine the cuttability of the rock mass. By collecting multiple sensor data during the drilling process in real time, the present application automatically inversely calculates the rock mass cuttability characteristic parameters, and then determines the cuttability of the rock mass. While realizing in-situ testing, the present application greatly improves the testing convenience and testing efficiency of the rock mass cuttability, and saves labor costs.

[0038] To make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 Shows a schematic structural diagram of a control device provided by an embodiment of the present application;

[0041] Figure 2 Shows another schematic structural diagram of a control device provided by an embodiment of the present application;

[0042] Figure 3 Shows a schematic mechanical structure diagram of a control device and an actuator provided by an embodiment of the present application;

[0043] Figure 4 Shows another schematic mechanical structure diagram of a control device and an actuator provided by an embodiment of the present application;

[0044] Figure 5 Shows an example diagram of a speed-time curve provided by an embodiment of the present application;

[0045] Figure 6 Shows still another schematic structural diagram of a control device provided by an embodiment of the present application;

[0046] Figure 7 Shows a schematic structural diagram of a rock mass cuttability test system provided by an embodiment of the present application;

[0047] Figure 8 Shows a schematic flow diagram of a rock mass cuttability test method provided by an embodiment of the present application.

[0048] Main element symbol description:

[0049] 100 - Control device; 110 - Main control module; 120 - Signal acquisition module; 121 - First monitoring unit; 122 - Pressure sensing unit; 130 - Driving module; 131 - First driving unit; 132 - Second driving unit; 140 - Interaction module; 141 - First interaction unit; 142 - Second interaction unit; 143 - Emergency stop button unit; 144 - Power supply locking button unit; 145 - Start / stop button unit; 150 - Classification module; 161 - Housing; 162 - Coupling; 163 - Propelling screw rod; 164 - Driving gear; 165 - Power supply; 166 - Limiter; 200 - Actuator; 210 - Drill bit; 220 - Drill rod; 700 - Rock mass cuttability test system. Detailed implementation manners

[0050] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of the template herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0053] Embodiment 1

[0054] Traditional rock mass cuttability test methods mainly rely on time-consuming and laborious core drilling and laboratory tests. The degree of intelligence of the test equipment is low, and in-situ rapid real-time detection cannot be achieved. The test results have large errors, low efficiency and high labor costs. In this regard, please refer to Figure 1 , an embodiment of the present application provides a control device 100, including: a main control module 110, a signal acquisition module 120 and a drive module 130; the main control module 110 is electrically connected to the signal acquisition module 120 and the drive module 130 respectively; the drive module 130 is also key-connected to the actuator 200;

[0055] The main control module 110 is configured to obtain a plurality of drilling parameters of the actuator 200 and send a control signal to the drive module 130 according to the plurality of drilling parameters; the drive module 130 is configured to drive the actuator 200 to drill according to the control signal; the signal acquisition module 120 is configured to obtain a plurality of sensor data during the drilling process and send each of the sensor data to the main control module 110; the main control module 110 is further configured to determine a drilling curve according to the plurality of sensor data, and determine a rock mass cuttability characteristic parameter according to the drilling curve, and the rock mass cuttability characteristic parameter is used to determine the rock mass cuttability characteristic.

[0056] In this embodiment, according to the obtained drilling parameters, the main control module 110 generates corresponding control signals and sends them to the driving module 130 to drive the actuator 200 to move through the driving module 130. During the movement, the signal acquisition module 120 acquires multiple sensor data, and the multiple sensor data includes but is not limited to: the output torque and output speed of the driving module 130, and the drilling pressure of the actuator 200. It can be understood that the main control module 110 can determine the drilling curve for reflecting the current drilling situation based on the multiple sensor data. Further, the rock mass cutability characteristic parameters are determined according to the drilling curve.

[0057] It should be noted that the rock mass cutability characteristic parameters refer to the parameters used to describe the physical and mechanical properties of the rock mass during mechanical cutting (such as tunneling, drilling, etc.). These parameters can reflect the hardness, integrity, easy cutability and other characteristics of the rock mass, and are important bases for evaluating the cutability of the rock mass in engineering.

[0058] In one embodiment, please refer to Figure 2 , the control device 100 further includes: at least one interaction module 140 electrically connected to the main control module 110; the at least one interaction module 140 is configured to obtain interaction signals, determine the multiple drilling parameters according to the interaction signals, and send each of the drilling parameters to the main control module 110.

[0059] In this embodiment, please combine Figure 3 , Figure 3 shows a schematic mechanical structure diagram of the control device 100 and the actuator 200 provided by an embodiment of the present application. The at least one interaction module 140 includes: a first interaction unit 141 and a second interaction unit 142. The first interaction unit 141 and the second interaction unit 142 are both arranged on the side of a housing 161 and are electrically connected to the main control module 110. The main control module 110 is not shown in Figure 3 . The first interaction unit 141 and / or the second interaction unit 142 is used to obtain multiple drilling parameters, and the multiple drilling parameters include: the target speed and the target position.

[0060] It can be understood that when it is necessary to control the actuator 200 to perform a drilling operation, the user inputs interaction signals through the first interaction unit 141 and / or the second interaction unit 142. The first interaction unit 141 and / or the second interaction unit 142 determines multiple drilling parameters according to the interaction signals and sends each of the drilling parameters to the main control module 110.

[0061] Further, the interaction module 140 further includes an interaction button unit. For example, Figure 3 the emergency stop button unit 143, the power lock button unit 144 shown in Figure 4 , and the start-stop button unit 145 exemplified in

[0062] In one embodiment, the plurality of sensor data includes: the output rotational speed of the driving module 130. The main control module 110 includes: a curve determination unit, and the curve determination unit is electrically connected to the signal acquisition module 120 and the at least one interaction module 140 respectively; the curve determination unit is configured to obtain the output rotational speed from the signal acquisition module 120, determine the drilling curve according to the output rotational speed, and send the drilling curve to the at least one interaction module 140; the at least one interaction module 140 is further configured to display the drilling curve.

[0063] In this embodiment, please refer to Figure 4 , Figure 4 which shows another schematic mechanical structure diagram of the control device 100 and the actuator 200 provided by the embodiment of the present application. The driving module 130 includes: a first driving unit 131 and a second driving unit 132. The signal acquisition module 120 includes: a first monitoring unit 121, a second monitoring unit, and a pressure sensing unit 122. Among them, the first monitoring unit 121 is key-connected to the output end of the first driving unit 131 through a coupling 162, and is configured to monitor the output rotational speed and output torque of the first driving unit 131; the second monitoring unit is configured to monitor the output rotational speed and output torque of the second driving unit 132, and the second monitoring unit is not shown in Figure 4 . The output end of the second driving unit 132 is connected to one end of the first driving unit 131 through a driving gear 164, and one end of the first driving unit 131 is also threadedly connected to a feed screw 163. It can be understood that the output end of the second driving unit 132 drives the first driving unit 131 to advance along the direction of the feed screw 163 through the driving gear 164. The length of the feed screw 163 is fixed. According to the output rotational speed of the second driving unit 132, the feed displacement and drilling speed of the first driving unit 131 can be further determined.

[0064] Please refer to Figure 4 again. The actuator 200 includes: a drill bit 210 and a drill rod 220. Among them, the drill bit 210 is detachably connected to one end of the drill rod 220, and the other end of the drill rod 220 is key-connected to the output end of the first driving unit 131. The feed displacement and drilling speed of the actuator 200 are the same as those of the first driving unit 131.

[0065] Further, the drilling curve includes a time - history curve and a speed - time curve. Among them, the time - history curve is used to reflect the relationship between the drilling time and the propulsion displacement of the actuator 200 during the drilling process; the speed - time curve is used to reflect the relationship between the drilling time and the drilling speed of the actuator 200 during the drilling process. Specifically, the curve determination unit obtains the output speed of the second drive unit 132 from the second monitoring unit, determines the propulsion displacement and the drilling speed of the actuator 200 according to the output speed of the second drive unit 132, further determines the time - history curve according to the propulsion displacement, and determines the speed - time curve according to the drilling speed. The curve determination unit sends the time - history curve and the speed - time curve to at least one interaction module 140, and at least one interaction module 140 displays the time - history curve and the speed - time curve so that the user can better understand the current drilling situation.

[0066] It should be noted that, in addition to displaying the drilling time - history curve and the speed - time curve, at least one interaction module 140 can also obtain and display multiple sensor data from the main control module 110. In other embodiments, at least one interaction module 140 can also obtain and display the following information from the main control module 110: the operating state of the actuator 200, including but not limited to states such as forward, backward, forward rotation, reverse rotation, etc.; multiple drilling parameters input by the user, including but not limited to: torque, target speed, target displacement, thrust, vibration, etc.; rated working parameters; digital warning information for dynamically displaying various indicators; data acquisition and storage status, etc.

[0067] In one embodiment, the multiple sensor data further includes: output torque and drilling pressure. The main control module 110 further includes an analysis unit, and the analysis unit is electrically connected to the curve determination unit and the signal acquisition module 120 respectively; the analysis unit is used to obtain the output speed, output torque and drilling pressure from the signal acquisition module 120; determine the drill bit 210 speed and drilling speed according to the output speed; determine the rock mass inversion strength according to the drill bit 210 speed, the drilling speed, the output torque and the drilling pressure; obtain the time - history curve and the speed - time curve from the curve determination unit, and determine the rock mass structure integrity according to the time - history curve and the speed - time curve; determine the rock mass cut - ability characteristic parameters according to the rock mass inversion strength and the rock mass structure integrity.

[0068] As described above, please combine Figure 4 , the signal acquisition module 120 includes: a first monitoring unit 121, a second monitoring unit and a pressure sensing unit 122. Among them, the first monitoring unit 121 is key - connected to the output end of the first drive unit 131 through a coupling 162, and is used to monitor the output speed and output torque of the first drive unit 131; the second monitoring unit is used to monitor the output speed and output torque of the second drive unit 132, and the second monitoring unit is in Figure 4is not shown; one end of the pressure sensing unit 122 is connected to the propulsion lead screw 163, and the other end is fixed to the housing 161. During the drilling process, the drilling pressure received by the actuator 200 is transmitted to the pressure sensing unit 122.

[0069] It can be understood that the output speed includes the output speed of the first driving unit 131 and the output speed of the second driving unit 132. Among them, the first driving unit 131 is key-connected to the actuator 200, and the first driving unit 131 drives the actuator 200 to rotate at its corresponding output speed. The actuator 200 includes a drill bit 210, that is, the rotation speed of the drill bit 210 is determined according to the output speed of the first driving unit 131. The drilling speed of the actuator 200 is determined according to the output speed of the second driving unit 132. During the drilling process, the power supplies of the first driving unit 131 and the second driving unit 132 are provided by the power supply 165. When drilling to the position where the limiter 166 is located, the main control module 110 controls the first driving unit 131 and the second driving unit 132 to stop output.

[0070] In one embodiment, the analysis unit includes: a first analysis subunit, electrically connected to the signal acquisition module 120; the first analysis subunit is used to determine the rock mass inversion strength according to the rotation speed of the drill bit 210, the drilling speed, the output torque and the drilling pressure. The formula is:

[0071]

[0072] Where, represents the rock mass inversion strength, represents the rotation speed of the drill bit 210, represents the output torque, represents the friction coefficient, represents the borehole radius, represents the drilling pressure, represents the drilling speed, represents the cross-sectional area of the borehole.

[0073] The rock mass inversion strength refers to the mechanical parameters (such as cohesion, internal friction angle, elastic modulus, etc.) of the rock mass derived through the inversion analysis method, combined with on-site monitoring data and numerical simulation techniques, so as to evaluate the strength and stability of the rock mass.

[0074] In one embodiment, the drilling curve includes a time history curve and a speed-time curve. The analysis unit further includes: a second analysis subunit, electrically connected to the curve determination unit;

[0075] The second analysis subunit is used to determine the fluctuation period according to the speed-time curve;

[0076] Based on the fluctuation period and the time history curve, determine the displacement difference within the fluctuation period, with the formula:

[0077]

[0078] where, represents the displacement difference; represents the function corresponding to the time history curve; represents the starting moment of the fluctuation period; represents the ending moment of the fluctuation period; represents the error coefficient.

[0079] During the drilling process, the fluctuation period can be determined according to the speed-time curve. Among them, the fluctuation period refers to the period when the speed change exceeds the preset speed change threshold and the duration exceeds the preset duration. Please refer to Figure 5 , Figure 5 which shows an example diagram of the speed-time curve provided by the embodiment of the present application. Among them, the period from t1 to t2 is the fluctuation period. After determining the fluctuation period according to the speed-time curve, the displacement difference within the corresponding fluctuation period can be determined according to the time history curve.

[0080] Based on the drilling speed, determine the drilling depth within the fluctuation period, with the formula:

[0081] ,

[0082] where, represents the drilling depth;

[0083] Based on the drilling depth and the displacement difference, determine the interface dip angle, with the formula:

[0084]

[0085] where, represents the interface dip angle;

[0086] Determine the integrity of the rock mass structure according to the interface dip angle.

[0087] It can be understood that during the drilling process, when the drilling mechanism gradually transitions from the first rock stratum to the second rock stratum, its drilling speed will fluctuate. According to the corresponding fluctuation curve, the fluctuation period t1~t2 can be determined. According to the fluctuation curve, the displacement of the drilling mechanism within the fluctuation period can be determined , determine the drilling depth within the fluctuation period according to the drilling speed, and further determine the interface dip angle based on the geometric relationship between the drilling mechanism and the rock stratum interface .

[0088] The rock mass cutting characteristics can be predicted based on the back-calculated strength of the rock mass, and the integrity of the rock mass structure can be predicted based on the integrity degree of the rock mass structure.

[0089] In one embodiment, the analysis unit further includes: a third analysis subunit electrically connected to the first analysis subunit and the second analysis subunit respectively;

[0090] The third analysis subunit is configured to determine the cuttability characteristic parameters of the rock mass according to the back-calculated strength of the rock mass and the integrity of the rock mass structure. The formula is:

[0091]

[0092] Wherein, represents the cuttability characteristic parameters of the rock mass, represents the first cuttability coefficient, represents the reduction coefficient of rock mass hardness, represents the reduction coefficient of rock mass integrity, represents the integrity of the rock mass structure.

[0093] The cuttability characteristic parameters of the rock mass are used to determine the cuttability characteristics of the rock mass.

[0094] In one embodiment, please refer to Figure 6 , the control device 100 further includes: a classification module 150 electrically connected to the main control module 110 and the interaction module 140 respectively; the classification module 150 is configured to determine the cuttability characteristic category of the rock mass according to the cuttability characteristic parameters of the rock mass, and send the cuttability characteristic category of the rock mass to the interaction module 140;

[0095] The interaction module 140 is further configured to display the cuttability characteristic category of the rock mass.

[0096] In this embodiment, the cuttability characteristic categories of the rock mass include: extremely easy to cut, easy to cut, relatively difficult to cut, difficult to cut, and extremely difficult to cut.

[0097] The control device provided by the embodiment of the present application includes: a main control module, a signal acquisition module, and a drive module; the main control module is electrically connected to the signal acquisition module and the drive module respectively; the drive module is also key-connected to the actuator; the main control module is configured to obtain a plurality of drilling parameters of the actuator, and send a control signal to the drive module according to the plurality of drilling parameters; the drive module is configured to drive the actuator to drill according to the control signal; the signal acquisition module is configured to obtain a plurality of sensor data during the drilling process, and send each of the sensor data to the main control module; the main control module is further configured to determine a drilling curve according to the plurality of sensor data, and determine a rock mass cuttability characteristic parameter according to the drilling curve, where the rock mass cuttability characteristic parameter is used to determine the rock mass cuttability characteristic. By collecting a plurality of sensor data during the drilling process in real time, the present application automatically inversely calculates the rock mass cuttability characteristic parameter, and then determines the rock mass cuttability characteristic. While realizing in-situ testing, the present application greatly improves the test convenience and test efficiency of the rock mass cuttability characteristic, and saves labor costs.

[0098] Embodiment 2

[0099] In addition, please refer to Figure 7 , the embodiment of the present application further provides a rock mass cuttability characteristic test system 700, including: an actuator 200 and the control device 100 described in the first aspect, and the actuator 200 is key-connected to the control device 100.

[0100] Wherein, the control device 100 includes: a main control module 110, a signal acquisition module 120, and a drive module 130; the main control module 110 is electrically connected to the signal acquisition module 120 and the drive module 130 respectively; the drive module 130 is also key-connected to the actuator 200; the main control module 110 is configured to obtain a plurality of drilling parameters of the actuator 200, and send a control signal to the drive module 130 according to the plurality of drilling parameters;

[0101] The drive module 130 is configured to drive the actuator 200 to drill according to the control signal; the signal acquisition module 120 is configured to obtain a plurality of sensor data during the drilling process, and send each of the sensor data to the main control module 110; the main control module 110 is further configured to determine a drilling curve according to the plurality of sensor data, and determine a rock mass cuttability characteristic parameter according to the drilling curve, where the rock mass cuttability characteristic parameter is used to determine the rock mass cuttability characteristic.

[0102] The rock mass cuttability characteristic test system provided by the embodiment of the present application includes the control device 100 described in Embodiment 1. To avoid repetition, it will not be elaborated here.

[0103] The rock mass cuttability testing system provided by the embodiments of the present application automatically inverses the rock mass cuttability characteristic parameters by collecting multiple sensor data during the drilling process in real time, and then determines the rock mass cuttability characteristics. While realizing in-situ testing, the present application greatly improves the testing convenience and testing efficiency of the rock mass cuttability characteristics and saves labor costs.

[0104] Embodiment 3

[0105] In addition, please refer to Figure 8 , the embodiments of the present application also provide a rock mass cuttability testing method, which is applied to the control device 100 described in Embodiment 1, and the method includes steps S810 to S840.

[0106] S810, the main control module obtains multiple drilling parameters of the actuator, and sends a control signal to the drive module according to the multiple drilling parameters.

[0107] S820, the drive module drives the actuator to drill according to the control signal.

[0108] S830, the signal acquisition module obtains multiple sensor data during the drilling process, and sends each sensor data to the main control module.

[0109] S840, the main control module determines a drilling curve according to the multiple sensor data, and determines the rock mass cuttability characteristic parameters according to the drilling curve, and the rock mass cuttability characteristic parameters are used to determine the rock mass cuttability characteristics.

[0110] The rock mass cuttability testing method provided by the embodiments of the present application is applied to the control device 100 described in Embodiment 1. To avoid repetition, it will not be elaborated here.

[0111] The rock mass cuttability testing method provided by the embodiments of the present application automatically inverses the rock mass cuttability characteristic parameters by collecting multiple sensor data during the drilling process in real time, and then determines the rock mass cuttability characteristics. While realizing in-situ testing, the present application greatly improves the testing convenience and testing efficiency of the rock mass cuttability characteristics and saves labor costs.

[0112] In all the examples shown and described here, any specific value should be construed as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0113] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0114] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims

1. A test system for the cuttability characteristics of rock masses, characterized in that, The system includes: an actuator and a control device, and the control device includes: a main control module, a signal acquisition module, and a drive module; The main control module is electrically connected to the signal acquisition module and the drive module respectively; The drive module is also key-connected to the actuator; The main control module is configured to obtain multiple drilling parameters of the actuator and send a control signal to the drive module according to the multiple drilling parameters; The drive module is configured to drive the actuator to drill according to the control signal; The signal acquisition module is configured to obtain multiple sensor data during the drilling process and send each of the sensor data to the main control module; The main control module is further configured to determine a drilling curve according to the multiple sensor data, and determine a rock mass cuttable characteristic parameter according to the drilling curve, and the rock mass cuttable characteristic parameter is used to determine the rock mass cuttable characteristic; The main control module includes: a curve determination unit and an analysis unit; The multiple sensor data includes: output torque, drilling pressure, and the output speed of the drive module. The curve determination unit is configured to obtain the output speed from the signal acquisition module and determine the drilling curve according to the output speed; The analysis unit is configured to obtain the output speed, output torque, and drilling pressure from the signal acquisition module; determine the bit speed and drilling speed according to the output speed; determine the rock mass inversion strength according to the bit speed, the drilling speed, the output torque, and the drilling pressure; obtain the drilling curve from the curve determination unit and determine the rock mass structure integrity according to the drilling curve; determine the rock mass cuttable characteristic parameter according to the rock mass inversion strength and the rock mass structure integrity; The drilling curve includes a time history curve and a speed-time curve. The analysis unit includes: a second analysis subunit configured to determine a fluctuation period according to the speed-time curve; According to the fluctuation period and the time history curve, determine the displacement difference within the fluctuation period. The formula is: wherein, represents the displacement difference, represents the function corresponding to the time history curve, represents the start time of the fluctuation period, represents the end time of the fluctuation period, represents the error coefficient; According to the drilling speed, determine the penetration depth within the fluctuation period. The formula is: ， Wherein, represents the drilling depth; According to the penetration depth and the displacement difference, determine the interface dip angle. The formula is: Among them, represents the interface inclination angle; Determine the rock mass structure integrity according to the interface dip angle.

2. The rock mass cuttability testing system according to claim 1, characterized in that The device further includes: at least one interaction module electrically connected to the main control module; The at least one interaction module is configured to obtain an interaction signal, determine the multiple drilling parameters according to the interaction signal, and send each of the drilling parameters to the main control module.

3. The rock mass cuttability testing system according to claim 2, characterized in that, The curve determination unit is also electrically connected to the at least one interaction module; The curve determination unit is further configured to send the drilling curve to the at least one interaction module; The at least one interaction module is further configured to display the drilling curve.

4. The rock mass cuttability testing system according to claim 1, characterized in that, The analysis unit includes: a first analysis subunit electrically connected to the signal acquisition module; The first analysis subunit is configured to determine the rock mass inversion strength according to the bit speed, the drilling speed, the output torque, and the drilling pressure. The formula is: Among them, represents the inversion strength of the rock mass, represents the rotational speed of the drill bit, represents the output torque, represents the friction coefficient, represents the borehole radius, represents the drilling pressure, represents the drilling speed, represents the cross-sectional area of the borehole.

5. The rock mass cuttability testing system according to claim 4, characterized in that, The analysis unit further includes: a third analysis subunit electrically connected to the first analysis subunit and the second analysis subunit respectively; The third analysis subunit is configured to determine the rock mass cuttability characteristic parameters according to the rock mass inversion strength and the rock mass structural integrity, and the formula is: Among them, represents the cuttability characteristic parameter of the rock mass, represents the first cutting coefficient, represents the reduction coefficient of rock mass hardness, represents the reduction coefficient of rock mass integrity, represents the structural integrity of the rock mass.

6. The rock mass cuttability testing system according to any one of claims 2-3, characterized in that The device further includes: a classification module, and the classification module is electrically connected to the main control module and the interaction module respectively; The classification module is configured to determine the rock mass cuttability characteristic category according to the rock mass cuttability characteristic parameters, and send the rock mass cuttability characteristic category to the interaction module; The interaction module is further configured to display the rock mass cuttability characteristic category.

7. A test method for the cuttability characteristics of rock masses, characterized in that, Applied to the rock mass cuttability test system according to any one of claims 1-5, the method includes: The main control module obtains a plurality of drilling parameters of the actuator, and sends a control signal to the drive module according to the plurality of drilling parameters; The drive module drives the actuator to drill according to the control signal; The signal acquisition module obtains a plurality of sensor data during the drilling process, and sends each of the sensor data to the main control module; The main control module determines a drilling curve according to the plurality of sensor data, and determines the rock mass cuttability characteristic parameters according to the drilling curve, and the rock mass cuttability characteristic parameters are used to determine the rock mass cuttability.

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