Drilling hole inclination measuring device and drilling hole inclination measuring method
By using the directional adjustment mechanism and telescopic leg structure in the drilling measurement device, the inclined rod is axially parallel to the drilling hole, which solves the problem that the drilling inclinedmeter cannot ensure parallelism, improves the measurement accuracy and adaptability, and is suitable for accurate measurement of ultra-deep anti-seepage wall diameter core holes.
Patent Information
- Application Number
- CN202510516948.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-07-25
AI Technical Summary
In the prior art, the drilling inclinometer cannot ensure that the inclinometer is parallel to the drill hole of the concrete anti-seepage wall, resulting in inaccurate measurement results. Especially when the drilling diameter is large, the problem is more significant and cannot reflect the true inclination state of the drilling hole.
The direction adjustment mechanism is adopted, including the first and second sets of telescopic legs. The telescopic legs are driven by a linear motor to adjust the telescopic legs, so that both ends of the inclined rod are located in the center of the drill hole, ensuring that the inclined rod is axially parallel to the drill hole, and the stroke sensor and resistance sensor are used to adjust the elongation value and axial resistance value of the telescopic legs in real time.
It improves the accuracy of drilling hole incline measurement, adapts to different hole diameters and complex hole wall conditions, ensures that the drill rod does not deviate from the outside of the wall, ensures successful core extraction, and reduces construction period delays and economic losses.
Smart Images
Figure CN120367572A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of borehole measurement, and particularly relates to a borehole deviation measurement device and a borehole deviation measurement method. Background Art
[0002] Seepage prevention is an important challenge to be addressed in the construction of a concrete face rockfill dam on a thick overburden layer. A concrete cut-off wall is the most commonly used seepage prevention engineering measure. The quality of the cut-off wall is crucial for the seepage prevention effect and even the safe operation of the entire pivot project. Core drilling is an important means to detect the quality of the concrete cut-off wall. The thickness of the cut-off wall usually ranges from 0.5 to 2.0 m, while the depth of the concrete cut-off wall on a super-thick overburden layer can reach more than 200 m. During the core drilling process, the drill pipe is extremely likely to deviate out of the wall, resulting in core sampling failure. Controlling the deviation of the borehole is a necessary means to ensure successful core sampling. Precise borehole deviation measurement is an important method to achieve borehole deviation control.
[0003] In borehole deviation measurement, a sliding type accelerometer inclinometer is mostly used. During operation, first lower the inclinometer to the bottom of the borehole to be measured. The accelerometer of the inclinometer can measure the inclination angle of the inclinometer rod at this measuring point. Then lift the inclinometer upward by a length of the inclinometer rod. After the measured value is stable, read out the inclination angle, and continue to lift by a length of the inclinometer rod. Repeat the above operations until the entire borehole is measured. Cumulatively calculate all the horizontal deviations obtained, and draw a curve from the bottom of the hole to the hole mouth. The inclination angle at each elevation and the horizontal offset distance relative to the hole mouth can be obtained. During the core drilling process of the concrete cut-off wall, by controlling the borehole inclination angle, the horizontal offset distance of the bottom of the hole relative to the hole mouth is controlled, so as to ensure that the drill pipe does not deviate out of the wall and ensure successful core sampling.
[0004] The deficiencies of the existing technical solutions are as follows: The working principle of the inclinometer requires that the inclinometer rod be parallel to the borehole. However, different from the standardized inclinometry method of embedding an inclinometer tube, the borehole diameter of the concrete cut-off wall drilling varies, and it is impossible to arrange an inclinometer tube with a guide groove and matching the size of the inclinometer in the hole. Therefore, it is impossible to ensure that the inclinometer rod is parallel to the borehole during the measurement process. When the borehole diameter is large, the non-parallel degree between the inclinometer rod and the borehole is further aggravated, resulting in the measurement result being unable to reflect the true inclination state of the borehole. Summary of the Invention
[0005] In view of this, embodiments of the present disclosure expect to provide a borehole deviation measurement device and a borehole deviation measurement method.
[0006] The technical solution of the present disclosure is realized as follows:
[0007] In a first aspect, the present disclosure provides a borehole deviation measurement device.
[0008] The borehole deviation measurement device provided by the embodiments of the present disclosure includes:
[0009] The direction adjustment mechanism is detachably connected to the inclinometer rod;
[0010] The direction adjustment mechanism comprises at least a first set of telescopic legs and a second set of telescopic legs;
[0011] The first set of telescopic legs is connected to the first end of the inclinometer rod, and the second set of telescopic legs is connected to the second end of the inclinometer rod;
[0012] The first group of telescopic legs and the second group of telescopic legs both include a fixed plate and two or more telescopic legs; wherein each group of telescopic legs is evenly spaced around the corresponding fixed plate;
[0013] Each of the telescopic legs comprises a pulley, a sleeve and a linear motor; the linear motor is equipped with a travel sensor and a resistance sensor; the linear motor is fixedly connected to the pulley through the sleeve;
[0014] The linear motor is used to drive the sleeve to extend and retract the telescopic leg to perform axial extension and retraction, and based on the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered in the extension and retraction process of the telescopic leg detected by the resistance sensor, regulate the elongation values of all the telescopic legs in the first group of telescopic legs to be the same as each other and the elongation values of all the telescopic legs in the second group of telescopic legs to be the same as each other.
[0015] In some embodiments, the sleeve includes a barrel and a telescopic rod;
[0016] The linear motor and the telescopic rod are located in the cylinder; the linear motor is fixedly connected to the pulley through the telescopic rod, and is used to drive the telescopic rod to drive the pulley to move telescopically, so as to regulate the telescopic leg.
[0017] In some embodiments, the inclinometer rod is equipped with a bar level built in; the inclinometer rod is used to measure the hole inclination of the borehole when the bar level is parallel to the relative axis of the borehole.
[0018] In some embodiments, the fixing plate includes a screw and a fixing shell;
[0019] All telescopic legs are fixedly connected to the fixed shell of the fixed plate;
[0020] The middle part of the screw is a hollow regular quadrangular prism structure, and the upper and lower parts of the screw are both hollow cylindrical thread structures;
[0021] The inner side of the fixed shell is a hollow regular quadrangular prism structure; the hollow regular quadrangular prism structure of the screw has a key; the hollow regular quadrangular prism structure of the fixed shell has a slot; the screw is placed in the fixed shell and is engaged with the key and the slot;
[0022] The fixed plate is threadedly connected to the thread structure of the inclinometer rod through the hollow cylindrical thread structure of the screw.
[0023] In some embodiments, it includes:
[0024] A ground controller, electrically connected to the stroke sensor and the resistance sensor, for receiving the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered during the telescopic process of the telescopic leg detected by the resistance sensor, and based on the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered during the telescopic process of the telescopic leg detected by the resistance sensor, regulating the elongation values of all the telescopic legs in the first group of telescopic legs to be the same as each other and the elongation values of all the telescopic legs in the second group of telescopic legs to be the same as each other.
[0025] In some embodiments, the ground controller includes:
[0026] A digital display module for real-time displaying the elongation value and the axial resistance value received by each telescopic leg;
[0027] A control module for regulating the elongation value of each telescopic leg by controlling the linear motor.
[0028] In some embodiments, each telescopic leg includes a spring;
[0029] The spring is embedded outside the telescopic rod, the first end of the spring is welded to the pulley, and the second end of the spring is welded to the cylinder body.
[0030] In a second aspect, the present disclosure provides a method for measuring the inclination of a drilling hole, which is implemented based on the drilling hole inclination measuring device described in the first aspect above. The method includes:
[0031] Real-time monitoring of the elongation values of all the telescopic legs in the first group of telescopic legs and the axial resistance values encountered during the telescopic process of the first group of telescopic legs, and the elongation values of all the telescopic legs in the second group of telescopic legs and the axial resistance values encountered during the telescopic process of the second group of telescopic legs;
[0032] When the axial resistance value encountered during the telescopic process of any one of the telescopic legs in the first group of telescopic legs and the second group of telescopic legs is greater than a first predetermined value, then control the linear motor to retract the telescopic leg with an axial resistance value greater than the first predetermined value, and when the axial resistance value encountered during the telescopic process of any one of the telescopic legs in the first group of telescopic legs and the second group of telescopic legs is less than the second predetermined value, then control the linear motor to extend the telescopic leg with an axial resistance value less than the second predetermined value until the elongation values of all the telescopic legs in the first group of telescopic legs are the same as each other and the elongation values of all the telescopic legs in the second group of telescopic legs are the same as each other; wherein, the first predetermined value is greater than the second predetermined value;
[0033] When the elongation values of all the telescopic legs in the first set of telescopic legs are the same as each other and the elongation values of all the telescopic legs in the second set of telescopic legs are the same as each other, the hole inclination of the drilling hole is measured based on the inclinometer rod.
[0034] In some embodiments, before the method of real-time monitoring the elongation values of all the telescopic legs in the first set of telescopic legs, the axial resistance values encountered during the telescopic process of the first set of telescopic legs, the elongation values of all the telescopic legs in the second set of telescopic legs, and the axial resistance values encountered during the telescopic process of the second set of telescopic legs, the method includes:
[0035] Initializing the drilling hole inclination measuring device, and setting the elongation values of all the telescopic legs in the first set of telescopic legs and the axial resistance values encountered during the telescopic process of the first set of telescopic legs to be zero; and
[0036] Setting the elongation values of all the telescopic legs in the second set of telescopic legs and the axial resistance values encountered during the telescopic process of the second set of telescopic legs to be zero.
[0037] In some embodiments, before the axial resistance is encountered during the telescopic process of the telescopic legs, all the telescopic legs are controlled to synchronously elongate by a linear motor.
[0038] According to the drilling hole inclination measuring device of the embodiments of the present disclosure, it includes: an orientation adjusting mechanism detachably connected to the inclinometer rod; the orientation adjusting mechanism at least includes a first set of telescopic legs and a second set of telescopic legs; the first set of telescopic legs is connected to the first end of the inclinometer rod, and the second set of telescopic legs is connected to the second end of the inclinometer rod; both the first set of telescopic legs and the second set of telescopic legs include a fixing plate and more than 2 telescopic legs; wherein, each set of telescopic legs is evenly spaced around the corresponding fixing plate; each telescopic leg includes a pulley, a sleeve, and a linear motor; the linear motor is internally provided with a stroke sensor and a resistance sensor; the linear motor is fixedly connected to the pulley through the sleeve; the linear motor is used to control the axial telescopic movement of the telescopic leg by driving the sleeve to telescopic, and based on the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered during the telescopic process of the telescopic leg detected by the resistance sensor, control the elongation values of all the telescopic legs in the first set of telescopic legs to be the same as each other and the elongation values of all the telescopic legs in the second set of telescopic legs to be the same as each other. The drilling hole inclination measuring device in the present application adopts a telescopic leg structure, so that both the first end and the second end of the inclinometer rod can be located in the center of the drilling hole, thereby making the inclinometer rod parallel to the axial direction of the drilling hole, and further effectively improving the accuracy of hole inclination measurement.
[0039] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. Description of the Drawings
[0040] Figure 1It is a schematic structural diagram of a borehole deviation measurement device shown according to an exemplary embodiment;
[0041] Figure 2 It is a schematic operation diagram of a borehole deviation measurement device shown according to an exemplary embodiment;
[0042] Figure 3 It is shown according to an exemplary embodiment Figure 2 Schematic structural diagram of the middle cross-section A-A;
[0043] Figure 4 It is shown according to an exemplary embodiment Figure 2 Schematic structural diagram of the middle cross-section B-B;
[0044] Figure 5 Schematic structural diagram of a telescopic leg shown according to an exemplary embodiment;
[0045] Figure 6 Schematic internal structure diagram of a storage box shown according to an exemplary embodiment;
[0046] Figure 7 Flowchart of a borehole deviation measurement method shown according to an exemplary embodiment;
[0047] Figure 8 Flowchart of the usage method of borehole deviation measurement during coring of a super-deep concrete cut-off wall. Specific embodiments
[0048] The embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the 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 drawings are exemplary and are intended to explain the present disclosure and should not be construed as a limitation of the present disclosure.
[0049] Seepage prevention is an important challenge to be addressed in constructing a concrete face rockfill dam on a thick overburden layer. Concrete cut-off walls are the most commonly used seepage prevention engineering measures. The quality of the cut-off wall is crucial for the seepage prevention effect and even the safe operation of the entire pivot project. Core drilling is an important means to detect the quality of the concrete cut-off wall. The thickness of the cut-off wall usually ranges between 0.5 and 2.0 m, while the depth of the concrete cut-off wall on a super-thick overburden layer can reach more than 200 m. During the core drilling process, the drill pipe is extremely likely to deviate out of the wall, resulting in core sampling failure. Controlling the borehole deviation is a necessary means to ensure successful core sampling. Precise borehole inclination measurement is an important method to achieve borehole deviation control.
[0050] In borehole inclinometry, a sliding-type acceleration sensor inclinometer is often used. During operation, the inclinometer is first lowered to the bottom of the borehole to be measured. The acceleration sensor of the inclinometer can measure the inclination angle of the inclinometer rod at this measuring point. Then, the inclinometer is lifted upward by the length of an inclinometer rod. After the measured value stabilizes, the inclination angle is read, and then it is lifted by another inclinometer rod length. Repeat the above operations until the entire borehole is measured. By cumulatively calculating all the horizontal deviations obtained and plotting a curve from the bottom to the top of the hole, the inclination angles at each elevation and the horizontal offset distance relative to the hole opening can be obtained. During the process of core sampling in the concrete cutoff wall borehole, by controlling the borehole inclination angle, the horizontal offset distance of the hole bottom relative to the hole opening is controlled, so as to ensure that the drill pipe does not deviate outside the wall and guarantee the success of core sampling.
[0051] The disadvantages of the existing technical solutions are as follows: The working principle of the inclinometer requires that the inclinometer rod be parallel to the borehole. However, different from the standardized inclinometry method using embedded inclinometer tubes, the borehole diameter of the concrete cutoff wall borehole varies, and it is impossible to arrange an inclinometer tube with a guide groove and adapted to the size of the inclinometer in the hole. Therefore, it is impossible to ensure that the inclinometer rod is parallel to the borehole during the measurement process. When the borehole diameter is large, the non-parallel degree between the inclinometer rod and the borehole is further aggravated, resulting in the measurement result being unable to reflect the true inclination state of the borehole.
[0052] In view of the above situation, the present disclosure provides a borehole inclination measurement device. Figure 1 It is a schematic structural diagram of a borehole inclination measurement device shown according to an exemplary embodiment. As Figure 1 shown, the borehole inclination measurement device includes:
[0053] An alignment mechanism 11, detachably connected to the inclinometer rod 12;
[0054] The alignment mechanism 11 at least includes a first set of telescopic legs 100 and a second set of telescopic legs 101;
[0055] The first set of telescopic legs 100 is connected to the first end of the inclinometer rod, and the second set of telescopic legs 101 is connected to the second end of the inclinometer rod;
[0056] Both the first set of telescopic legs 100 and the second set of telescopic legs 101 include a fixing plate 112 and more than 2 telescopic legs 111; among them, each set of telescopic legs is evenly spaced around the corresponding fixing plate 112;
[0057] Each telescopic leg includes a pulley, a sleeve, and a linear motor; the linear motor is internally provided with a stroke sensor and a resistance sensor; the linear motor is fixedly connected to the pulley through the sleeve;
[0058] The linear motor is used to axially extend and retract the telescopic legs by driving the telescopic sleeve, and based on the elongation value of the telescopic legs detected by the stroke sensor and the axial resistance value encountered during the telescopic process of the telescopic legs detected by the resistance sensor, the elongation values of all the telescopic legs in the first group of telescopic legs are made the same as each other, and the elongation values of all the telescopic legs in the second group of telescopic legs are made the same as each other.
[0059] In the present exemplary embodiment, Figure 2 is a schematic working diagram of a borehole deviation measurement device shown according to an exemplary embodiment. Figure 6 is a schematic internal structure diagram of a storage box shown according to an exemplary embodiment. As Figure 2 shown, the borehole deviation measurement device includes a downhole instrument 1, a ground controller 2, a cable 3, Figure 6 the thrust meter 4 in Figure 6 and the storage box 5 in
[0060] The storage box 5 is internally provided with a groove 51 adapted to components such as the steering mechanism for assisting the stability of the components of the downhole instrument during the assembly process and facilitating the assembly of the downhole instrument.
[0061] The downhole instrument 1 is used to measure the borehole inclination angle and includes a steering mechanism 11 and an inclinometer rod 12, which are connected by a screw 13.
[0062] One steering mechanism 11 is installed at each end of the inclinometer rod 12.
[0063] A strip spirit level 121 is arranged inside the inclinometer rod 12 for controlling the inclinometer rod to be in a vertical state during the assembly process of the downhole instrument.
[0064] Figure 3 is a schematic structure diagram of the Figure 2 cross-section A-A shown according to an exemplary embodiment; Figure 4 is a schematic structure diagram of the Figure 2 cross-section B-B shown according to an exemplary embodiment. As Figure 3 、 Figure 4As shown, the direction adjusting mechanism 11 is used to adjust the direction of the inclinometer rod inside the drill hole to ensure that the inclinometer rod is parallel to the hole wall 7 of the impervious wall 6 during the measurement process. A direction adjusting mechanism 11 may also include 4 telescopic legs 111 and a fixing plate 112. This is only an example here and is not limiting. For example, when a direction adjusting mechanism 11 includes 2 telescopic legs, the included angle between the two telescopic legs can be 180 degrees; when a direction adjusting mechanism 11 includes 3 telescopic legs, the included angle between adjacent two telescopic legs can be 120 degrees; when a direction adjusting mechanism 11 includes 4 telescopic legs, the included angle between adjacent two telescopic legs can be 90 degrees, and so on.
[0065] The telescopic legs are fixedly connected to the fixing plate at equal angular intervals. The telescopic legs and the fixing plate are arranged on the same horizontal plane. Among them, after the installation of the telescopic legs of the direction adjusting mechanism at the top end of the inclinometer rod, the axes of the upper and lower telescopic legs are coplanar in pairs.
[0066] According to the drill hole inclination measurement device of the present disclosure embodiment, it includes: a direction adjusting mechanism detachably connected to the inclinometer rod; the direction adjusting mechanism at least includes a first group of telescopic legs and a second group of telescopic legs; the first group of telescopic legs is connected to the first end of the inclinometer rod, and the second group of telescopic legs is connected to the second end of the inclinometer rod; both the first group of telescopic legs and the second group of telescopic legs include a fixing plate and more than 2 telescopic legs; wherein, each group of telescopic legs is evenly distributed around the corresponding fixing plate at equal intervals; each telescopic leg includes a pulley, a sleeve and a linear motor; the linear motor is internally provided with a stroke sensor and a resistance sensor; the linear motor is fixedly connected to the pulley through the sleeve; the linear motor is used to drive the sleeve to expand and contract to control the axial expansion and contraction of the telescopic leg, and based on the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered during the expansion and contraction of the telescopic leg detected by the resistance sensor, control the elongation values of all the telescopic legs in the first group of telescopic legs to be the same as each other and the elongation values of all the telescopic legs in the second group of telescopic legs to be the same as each other. The drill hole inclination measurement device in this application adopts a telescopic leg structure, so that both the first end and the second end of the inclinometer rod can be located in the center of the drill hole, so that the inclinometer rod is parallel to the axial direction of the drill hole, thereby effectively improving the accuracy of hole inclination measurement.
[0067] In some embodiments, the sleeve includes a cylinder body and a telescopic rod;
[0068] The linear motor and the telescopic rod are located inside the cylinder body; the linear motor is fixedly connected to the pulley through the telescopic rod, and is used to drive the pulley to expand and contract by driving the telescopic rod to control the expansion and contraction of the telescopic leg.
[0069] In this exemplary embodiment, a strip level is built in the inclinometer rod; the inclinometer rod is used to measure the hole inclination of the drill hole when the strip level is axially parallel to the drill hole.
[0070] In this exemplary embodiment, the fixed plate includes a screw rod and a fixed shell;
[0071] All the telescopic legs are fixedly connected to the fixed shell of the fixed plate;
[0072] The middle part of the screw rod is a hollow regular quadrangular prism structure, and the upper and lower parts of the screw rod are both hollow cylindrical thread structures;
[0073] The inner side of the fixed shell is a hollow regular quadrangular prism structure; the hollow regular quadrangular prism structure of the screw rod has a key; the hollow regular quadrangular prism structure of the fixed shell has a slot; the screw rod is placed inside the fixed shell and is fitted through the key and the slot;
[0074] The fixed plate is threadedly connected to the threaded structure of the inclinometer rod through the hollow cylindrical thread structure of the screw rod. Through the key and the slot, the screw rod is fixed inside the fixed shell, and further the fixed plate is threadedly connected to the threaded structure of the inclinometer rod through the hollow cylindrical thread structure of the screw rod.
[0075] In this exemplary embodiment, the ground controller is electrically connected to the travel sensor and the resistance sensor, and is configured to receive the elongation value of the telescopic leg detected by the travel sensor and the axial resistance value encountered during the telescopic process of the telescopic leg detected by the resistance sensor, and based on the elongation value of the telescopic leg detected by the travel sensor and the axial resistance value encountered during the telescopic process of the telescopic leg detected by the resistance sensor, regulate the elongation values of all the telescopic legs in the first group to be the same as each other and the elongation values of all the telescopic legs in the second group to be the same as each other. In this way, it is convenient for the staff to regulate the elongation values of all the telescopic legs in the first group to be the same as each other and the elongation values of all the telescopic legs in the second group to be the same as each other through the ground controller, so as to make the inclinometer rod located at the center of the drill hole, and the central axis of the inclinometer rod parallel to the central axis of the drill hole diameter.
[0076] In this exemplary embodiment, the ground controller 2 includes a digital display module 21 and a control module 22.
[0077] The digital display module is configured to display in real time the elongation value and the axial resistance value received by each telescopic leg;
[0078] The control module is configured to regulate the elongation value of each telescopic leg by controlling the linear motor.
[0079] In this exemplary embodiment, each telescopic leg includes a spring;
[0080] The spring is embedded around the telescopic rod, the first end of the spring is welded to the pulley, and the second end of the spring is welded to the cylinder body. In this application, the spring can achieve the effect of shock absorption during the inclinometer measurement process.
[0081] In this exemplary embodiment, Figure 5 is a schematic diagram of a telescopic leg structure shown according to an exemplary embodiment. As Figure 5 shown, the telescopic leg includes a cylinder shell 1111, a spring 1112, a snap ring 1113, a telescopic rod 1114, and a pulley 1115. A linear motor is built into the cylinder shell 1111; the linear motor is connected to the telescopic rod through a sleeve, and the telescopic rod is driven by the linear motor and can perform linear motion along its axis.
[0082] The linear motor is built with a travel sensor and a resistance sensor, and can sense the elongation value of the telescopic leg and the axial resistance value encountered during the telescopic process. The elongation value and the resistance value are transmitted to the ground controller 2 through a cable 3.
[0083] The telescopic rod 1114 is a cylinder, and a scale ruler is provided on its surface.
[0084] The fixing plate 112 is provided with a disc level 1121, which is used to control the orientation mechanism to be in a horizontal state during the assembly of the hole instrument.
[0085] As Figure 3 shown, the fixing plate 112 is a hollow structure, and its internal is a regular quadrangular prism cavity 1122. The hollow structure serves the purpose of allowing passage, and the regular quadrangular prism cavity facilitates its connection with the inclinometer rod through a screw. An arc-shaped card slot 1123 is provided on one side of the regular quadrangular prism cavity.
[0086] As Figure 1 shown, both ends of the screw 13 are hollow cylinders 131 with threads, which are convenient for threaded connection with the inclinometer rod. The middle section of the screw is a hollow regular quadrangular prism 132, and there is a protruding key 133 on one side of the regular quadrangular prism. The dimensions of the regular quadrangular prism and the key are adapted to the dimensions of the regular quadrangular prism cavity and the card slot inside the fixing plate, and the screw passes through the fixing plate during assembly.
[0087] When assembling the orientation mechanism and the inclinometer rod, one end of the screw is threadedly connected to the inclinometer rod, and the other end is fixed with a nut 14.
[0088] The digital display module can display the elongation value and the axial resistance value received by each telescopic leg in real time.
[0089] The control module is used to control the linear motor to change the telescopic length of the telescopic leg. The control module can control all linear motors simultaneously by setting the same telescopic value, so that all telescopic legs obtain the same telescopic length; it can also control a certain linear motor alone to change the telescopic length of a certain specific telescopic leg.
[0090] The present disclosure provides a method for measuring the hole deviation of a drill hole. Figure 7It is a flowchart of a borehole deviation measurement method shown according to an exemplary embodiment. As Figure 7 shown, the borehole deviation measurement method includes:
[0091] Step 70, monitoring in real time the elongation values of all telescopic legs in the first group of telescopic legs, the axial resistance values encountered during the telescopic process of the first group of telescopic legs, the elongation values of all telescopic legs in the second group of telescopic legs, and the axial resistance values encountered during the telescopic process of the second group of telescopic legs;
[0092] Step 71, when the axial resistance value encountered during the telescopic process of any telescopic leg in the first group of telescopic legs and the second group of telescopic legs is greater than a first predetermined value, controlling the linear motor to retract the telescopic leg with an axial resistance value greater than the first predetermined value, and when the axial resistance value encountered during the telescopic process of any telescopic leg in the first group of telescopic legs and the second group of telescopic legs is less than the second predetermined value, controlling the linear motor to extend the telescopic leg with an axial resistance value less than the second predetermined value until the elongation values of all telescopic legs in the first group of telescopic legs are the same as each other and the elongation values of all telescopic legs in the second group of telescopic legs are the same as each other; wherein, the first predetermined value is greater than the second predetermined value;
[0093] Step 72, when the elongation values of all telescopic legs in the first group of telescopic legs are the same as each other and the elongation values of all telescopic legs in the second group of telescopic legs are the same as each other, measuring the borehole deviation based on the inclinometer rod.
[0094] The borehole deviation measurement method according to an embodiment of the present disclosure is implemented based on the borehole deviation measurement device of the above embodiment. The borehole deviation measurement method includes: real-time monitoring the elongation values of all the telescopic legs in the first set of telescopic legs and the axial resistance values encountered during the telescopic process of the first set of telescopic legs, and the elongation values of all the telescopic legs in the second set of telescopic legs and the axial resistance values encountered during the telescopic process of the second set of telescopic legs; when the axial resistance value encountered during the telescopic process of any one of the telescopic legs in the first set of telescopic legs and the second set of telescopic legs is greater than a first predetermined value, then controlling the linear motor to retract the telescopic leg with an axial resistance value greater than the first predetermined value, and when the axial resistance value encountered during the telescopic process of any one of the telescopic legs in the first set of telescopic legs and the second set of telescopic legs is less than the second predetermined value, then controlling the linear motor to extend the telescopic leg with an axial resistance value less than the second predetermined value until the elongation values of all the telescopic legs in the first set of telescopic legs are the same as each other and the elongation values of all the telescopic legs in the second set of telescopic legs are the same as each other; wherein, the first predetermined value is greater than the second predetermined value; when the elongation values of all the telescopic legs in the first set of telescopic legs are the same as each other and the elongation values of all the telescopic legs in the second set of telescopic legs are the same as each other, measuring the borehole deviation of the borehole based on the inclinometer rod. When performing borehole deviation measurement in this application, the borehole deviation measurement device adopts a telescopic leg structure, so that both the first end and the second end of the inclinometer rod can be located in the center of the borehole, thereby making the inclinometer rod parallel to the axial direction of the borehole, and thus effectively improving the accuracy of borehole deviation measurement.
[0095] Before the step of real-time monitoring the elongation values of all the telescopic legs in the first set of telescopic legs and the axial resistance values encountered during the telescopic process of the first set of telescopic legs, and the elongation values of all the telescopic legs in the second set of telescopic legs and the axial resistance values encountered during the telescopic process of the second set of telescopic legs, the method includes:
[0096] Initializing the borehole deviation measurement device, and setting the elongation values of all the telescopic legs in the first set of telescopic legs and the axial resistance values encountered during the telescopic process of the first set of telescopic legs to be zero; and
[0097] Setting the elongation values of all the telescopic legs in the second set of telescopic legs and the axial resistance values encountered during the telescopic process of the second set of telescopic legs to be zero.
[0098] In some embodiments, before the telescopic legs encounter axial resistance during the telescopic process, all the telescopic legs are controlled to extend synchronously by the linear motor.
[0099] In this exemplary embodiment, Figure 8 is a flowchart showing the usage method of the borehole deviation measurement device when taking a core hole in a super-deep concrete cut-off wall according to an exemplary embodiment. The usage method of the borehole deviation measurement device includes the following steps:
[0100] Step 80: Assembly of the in-hole instrument. Refer to the structural schematic diagram of the in-hole instrument assembly and assemble the in-hole instrument on-site. Use screws and nuts to install and fix a steering mechanism to both ends of the inclinometer rod respectively. The key on the screw passes through the slot on the fixed plate, and check and ensure that the axes of the upper and lower telescopic legs are coplanar pairwise. With the help of the disc level on the fixed plate and the strip level on the inclinometer rod, check and ensure that when the inclinometer rod is in the vertical state, the steering mechanism is in the horizontal state.
[0101] Step 81: Inspection of the measuring device. Connect the cable between the in-hole instrument and the ground controller and turn it on. Check and ensure that the ground controller can control the telescoping of each telescopic leg and its elongation value can be displayed on the digital display module, and ensure that the reading on the scale of the telescopic rod is consistent with the value displayed on the digital display module. Apply an axial thrust to each telescopic leg on one side of the pulley using a thrust gauge to ensure that the resistance value in the digital display module has a reading change and is consistent with the reading of the thrust gauge.
[0102] Step 82: Instrument initialization. Set the elongation value of all telescopic legs to 0, that is, initialize the digital display module, and at the same time, the telescopic legs are in the fully retracted state. Set the resistance value to 0, that is, the telescopic legs are not under the action of thrust.
[0103] Step 83: Lowering the instrument. Lower the in-hole instrument to the first measurement point.
[0104] Step 84: Steering of the inclinometer rod. Control all telescopic legs to extend synchronously through the ground controller. When obvious resistance is obtained for all telescopic legs, stop extending. At this time, all the pulleys of the extended legs are in contact with the borehole wall, the axis of the inclinometer rod coincides with the axis of the borehole, and the measurement result can truly reflect the inclination state of the borehole.
[0105] Step 85: Measurement implementation. Read and record the inclination angle and direction of the inclinometer rod.
[0106] Step 86: Lifting the inclinometer rod. Lift the inclinometer rod to the next measurement point. If the lifting of the inclinometer rod is blocked, it indicates that the shape of the borehole wall in this section is irregular or there are embedded objects such as steel bars, acoustic pipes or cables in the borehole. Then control all telescopic legs to shorten and try to lift the inclinometer rod again. After the inclinometer rod reaches the next measurement point, repeat steps 83 to 84. Repeat steps 84 to 85 until the measurement plan is completed.
[0107] It should be noted that since the telescopic legs of the measuring device provided in this application have adjustable lengths, the adaptability to the same stepped borehole and different boreholes with different diameters is achieved, and good passability is ensured for the cases where the shape of the borehole wall is irregular or there are embedded objects such as steel bars, sonic logging tubes or cables in the borehole. In addition, for the case of widely used embedded inclinometers in other fields, the inclinometer tubes often undergo extrusion deformation, resulting in the inability of the inclinometer rod to pass through. Since the telescopic legs of the measuring device provided in this application have adjustable lengths, the measuring device provided in this application also has good adaptability to this situation.
[0108] The borehole deviation measurement method provided in this application adjusts the direction of the inclinometer rod inside the borehole through the orientation mechanism to ensure that the inclinometer rod is parallel to the borehole wall during the measurement process. It not only solves the problem of inaccurate measurement caused by the non-parallelism between the traditional sliding inclinometer and the borehole, but also solves the problem that the conventional sliding inclinometer is difficult to adapt to different borehole diameters. It is applicable to the accurate measurement of the deviation of core-taking holes of concrete cut-off walls with multiple borehole diameters, especially applicable to the deep borehole deviation measurement of stepped core-taking holes of ultra-deep cut-off walls, reducing the construction period delay and economic losses caused by the drill pipe deviating out of the wall, and providing equipment support and technical guarantee for the core-taking of concrete cut-off wall boreholes.
[0109] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus or device), or used in combination with these instruction execution systems, apparatus or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate or transport a program for use by or in connection with an instruction execution system, apparatus or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which a program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation or other appropriate processing as necessary, and then stored in a computer memory.
[0110] It should be understood that the various parts of the present disclosure can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.
[0111] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0112] In the description of the present disclosure, it should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present disclosure.
[0113] In addition, the terms "first", "second", etc. used in the embodiments of the present disclosure are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the technical features indicated in this embodiment. Thus, the features defined with terms such as "first", "second", etc. in the embodiments of the present disclosure can explicitly or implicitly indicate that at least one such feature is included in this embodiment. In the description of the present disclosure, the meaning of the word "plurality" is at least two or more than two, such as two, three, four, etc., unless otherwise specifically defined in the embodiments.
[0114] In this disclosure, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "coupled" and "fixed" etc. appearing in the embodiments shall be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or integrated. Understandably, it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the communication inside two elements, or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific implementation situations.
[0115] In this disclosure, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0116] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.
Claims
1. A device for measuring the deviation of a drilling hole, characterized in that include: The direction adjustment mechanism is detachably connected to the inclinometer rod; The direction adjustment mechanism comprises at least a first set of telescopic legs and a second set of telescopic legs; The first set of telescopic legs is connected to the first end of the inclinometer rod, and the second set of telescopic legs is connected to the second end of the inclinometer rod; The first group of telescopic legs and the second group of telescopic legs both include a fixed plate and two or more telescopic legs; wherein each group of telescopic legs is evenly spaced around the corresponding fixed plate; Each of the telescopic legs comprises a pulley, a sleeve and a linear motor; the linear motor is equipped with a travel sensor and a resistance sensor; the linear motor is fixedly connected to the pulley through the sleeve; The linear motor is used to drive the sleeve to extend and retract the telescopic leg to perform axial extension and retraction, and based on the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered in the extension and retraction process of the telescopic leg detected by the resistance sensor, regulate the elongation values of all the telescopic legs in the first group of telescopic legs to be the same as each other and the elongation values of all the telescopic legs in the second group of telescopic legs to be the same as each other.
2. The borehole deviation measurement device according to claim 1, characterized in that, The sleeve comprises a cylinder body and a telescopic rod; The linear motor and the telescopic rod are located in the cylinder; the linear motor is fixedly connected to the pulley through the telescopic rod, and is used to drive the telescopic rod to drive the pulley to move telescopically, so as to regulate the telescopic leg.
3. The borehole deviation measurement device according to claim 1, characterized in that The inclinometer rod is equipped with a strip level; the inclinometer rod is used to measure the hole inclination of the borehole when the strip level is parallel to the relative axis of the borehole.
4. The borehole deviation measurement device according to claim 1, characterized in that The fixing plate includes a screw rod and a fixing shell; All telescopic legs are fixedly connected to the fixed shell of the fixed plate; The middle part of the screw is a hollow regular quadrangular prism structure, and the upper and lower parts of the screw are both hollow cylindrical thread structures; The inner side of the fixed shell is a hollow regular quadrangular prism structure; the hollow regular quadrangular prism structure of the screw has a key; the hollow regular quadrangular prism structure of the fixed shell has a slot; the screw is placed in the fixed shell and is engaged with the key and the slot; The fixing plate is threadedly connected to the thread structure of the inclinometer rod through the hollow cylindrical thread structure of the screw rod.
5. The borehole deviation measurement device according to claim 1, characterized in that, include: A ground controller is electrically connected to the stroke sensor and the resistance sensor, and is used to receive the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered during the extension and retraction of the telescopic leg detected by the resistance sensor, and based on the elongation value of the telescopic leg detected by the stroke sensor and the axial resistance value encountered during the extension and retraction of the telescopic leg detected by the resistance sensor, regulate the elongation values of all the telescopic legs in the first group of telescopic legs to be the same as each other and regulate the elongation values of all the telescopic legs in the second group of telescopic legs to be the same as each other.
6. The borehole deviation measurement device according to claim 5, wherein, The ground controller comprises: A digital display module is used to display the elongation value of each telescopic leg and the axial resistance value in real time; The control module is used to adjust the extension value of each telescopic leg by controlling the linear motor.
7. The borehole deviation measurement device according to claim 2, characterized in that, Each of the telescopic legs comprises a spring; The spring is embedded in the periphery of the telescopic rod, the first end of the spring is welded to the pulley, and the second end of the spring is welded to the cylinder.
8. A method for measuring the deviation of a drilling hole, characterized in that, Implementing based on the borehole deviation measurement device according to claim 1, the method includes: Real-time monitoring of the elongation values of all the telescopic legs in the first set of telescopic legs, the axial resistance values encountered during the telescoping process of the first set of telescopic legs, the elongation values of all the telescopic legs in the second set of telescopic legs, and the axial resistance values encountered during the telescoping process of the second set of telescopic legs; When the axial resistance value encountered during the telescoping process of any one of the telescopic legs in the first set of telescopic legs and the second set of telescopic legs is greater than a first predetermined value, then control the linear motor to retract the telescopic leg with an axial resistance value greater than the first predetermined value, and when the axial resistance value encountered during the telescoping process of any one of the telescopic legs in the first set of telescopic legs and the second set of telescopic legs is less than a second predetermined value, then control the linear motor to extend the telescopic leg with an axial resistance value less than the second predetermined value until the elongation values of all the telescopic legs in the first set of telescopic legs are the same as each other and the elongation values of all the telescopic legs in the second set of telescopic legs are the same as each other; wherein, the first predetermined value is greater than the second predetermined value; When the elongation values of all the telescopic legs in the first set of telescopic legs are the same as each other and the elongation values of all the telescopic legs in the second set of telescopic legs are the same as each other, measure the borehole deviation based on the inclinometer rod.
9. The borehole deviation measurement method according to claim 8, characterized in that, Before the real-time monitoring of the elongation values of all the telescopic legs in the first set of telescopic legs, the axial resistance values encountered during the telescoping process of the first set of telescopic legs, the elongation values of all the telescopic legs in the second set of telescopic legs, and the axial resistance values encountered during the telescoping process of the second set of telescopic legs, the method includes: Initializing the borehole deviation measurement device, setting the elongation values of all the telescopic legs in the first set of telescopic legs and the axial resistance values encountered during the telescoping process of the first set of telescopic legs to zero; and Setting the elongation values of all the telescopic legs in the second set of telescopic legs and the axial resistance values encountered during the telescoping process of the second set of telescopic legs to zero.
10. The borehole deviation measurement method according to claim 9, characterized in that, Before the telescopic legs encounter axial resistance during the telescoping process, control all the telescopic legs to extend synchronously through the linear motor.