Method and device for determining center guide hole of raise boring machine

Abstract

The invention relates to the technical field of raise boring machine raise construction, and discloses a raise boring machine center guide hole determination method and device, and the method comprises the steps: determining the positions and distances of at least three control point positions on an upper subsection chamber rock wall based on raise boring machine operation area design requirements; and determining the center guide hole position of the raise boring machine in real time based on the position and the distance. According to the scheme, the positions and the distances of the at least three control point positions are determined on the segmented chamber rock wall on the deep vertical raise, and the position of the center guide hole of the raise boring machine is determined in real time. In the process, along with tunneling of the raise boring machine, the center point of the original raise cannot be distinguished, the positions and distances of at least three control points are determined on the upper subsection chamber rock wall, so that the position of the center guide hole of the raise boring machine is determined in real time by utilizing the intersection points of the positions and the distances, the repeated measurement process in the related technology is avoided, and the measurement accuracy is improved. The position of the center guide hole is measured in real time, the construction precision is guaranteed, and meanwhile the construction period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of raise boring machine skylight construction, and in particular to a method and a device for determining a center guide hole of a raise boring machine. Background Art

[0002] With the improvement of equipment, the raise boring method has become the main method for mine construction. In order to meet the requirements of forming an effective ventilation system underground, two deep vertical shafts with different cross-sections are set up in the mining area. The upper and lower sections of the shaft are connected by passages. The construction period of the shaft is tight and the vertical accuracy requirements are high. In order to ensure the personal safety of construction workers and reduce the safety risks of shaft construction, the raise boring technology is used in the upper section chamber.

[0003] Since the skylight is located in a narrow and limited space, in order to effectively control the borehole deviation rate, in related technologies, it is necessary to measure the fixed-point layout work, which is usually carried out at any time according to the construction progress. The workload is large and the measurement process is cumbersome, which will also affect the progress of the drilling operation; and in the process of drilling the center guide hole, if the drill rod deflection accuracy is not well controlled, it is easy to have a large deviation, which will also cause the overall wellbore to deviate from the design, resulting in rework and re-drilling, delays in construction period, and serious losses in project quality. Therefore, how to determine the center guide hole of the raise boring machine in real time is a technical problem that needs to be solved urgently. Summary of the invention

[0004] In view of this, the present invention provides a method and device for determining the center guide hole of a raise boring machine, so as to solve the technical problem that the center guide hole of the raise boring machine cannot be determined in real time.

[0005] In a first aspect, the present invention provides a method for determining the center guide hole of a raise boring rig, the method comprising: determining the positions and distances of at least three control points on the rock wall of an upper segmented chamber based on the design requirements of the raise boring rig's operating area; and determining the position of the center guide hole of the raise boring rig in real time based on the positions and distances.

[0006] In combination with the first aspect, in a possible implementation of the first aspect, based on the design requirements of the raise boring rig operating area, the positions and distances of at least three control points are determined on the rock wall of the upper section chamber, including: based on the design requirements of the raise boring rig operating area, determining the center point and radius of the shaft related to the upper section chamber; based on the center point of the shaft, using a measuring instrument, determining at least three distances on the rock wall of the upper section chamber; in response to each distance and radius meeting the measurement standard, using the point corresponding to the distance as the position of the control point.

[0007] In combination with the first aspect, in a possible implementation of the first aspect, the center guide hole position of the reverse drilling rig is determined in real time based on the position and distance, including: selecting ropes with lengths and distances corresponding to each other; setting a corresponding rope at each position as the starting end point of the rope; straightening at least three ropes horizontally, and taking the intersection of the ropes as the center guide hole position of the reverse drilling rig at the current moment.

[0008] In combination with the first aspect, in a possible implementation manner of the first aspect, the method further includes: correcting the reverse boring rig at the current moment based on the center guide hole position and the deflection rate of the drill pipe of the reverse boring rig.

[0009] In combination with the first aspect, in a possible implementation of the first aspect, based on the center guide hole position and the deflection rate of the raise boring rig drill rod, the raise boring rig at the current moment is corrected, including: determining a baseline based on the center guide hole position and the bottom plate of the upper segmented chamber; determining the deflection rate based on the baseline and the raise boring rig drill rod; in response to the deflection rate reaching a preset threshold, correcting the raise boring rig at the current moment.

[0010] In a second aspect, the present invention provides a device for determining the center guide hole of a raise boring rig, the device comprising: a parameter determination unit, for determining the positions and distances of at least three control points on the rock wall of an upper segmented chamber based on the design requirements of the raise boring rig's operating area; and a center guide hole position determination unit, for determining the center guide hole position of the raise boring rig in real time based on the position and distance.

[0011] In combination with the second aspect, in a possible implementation of the second aspect, the parameter determination unit includes: a point determination subunit, which is used to determine the center point and radius of the shaft related to the upper section chamber based on the design requirements of the raise boring machine operation area; a distance determination subunit, which is used to determine at least three distances on the rock wall of the upper section chamber based on the center point of the shaft using a measuring instrument; and a position determination subunit, which is used to respond to each distance and radius meeting the measurement standard and use the point corresponding to the distance as the position of the control point.

[0012] In combination with the second aspect, in a possible implementation of the second aspect, the center guide hole position determination unit includes: a rope selection subunit, used to select ropes with lengths and distances corresponding to each other; an endpoint subunit, used to set a corresponding rope at each position as a starting endpoint of the rope; a center guide hole position determination subunit, used to horizontally straighten at least three ropes, and use the intersection of the ropes as the center guide hole position of the reverse drilling rig at the current moment.

[0013] In combination with the second aspect, in a possible implementation of the second aspect, the device further includes: a correction unit, which is used to correct the reverse boring rig at the current moment based on the center guide hole position and the deflection rate of the reverse boring rig drill pipe.

[0014] In combination with the second aspect, in a possible implementation of the second aspect, the correction unit includes: a baseline determination subunit, used to determine the baseline based on the center guide hole position and the bottom plate of the upper segmented chamber; a deflection rate determination subunit, used to determine the deflection rate based on the baseline and the drill pipe of the reverse drilling rig; and a correction subunit, used to correct the reverse drilling rig at the current moment in response to the deflection rate reaching a preset threshold.

[0015] The technical solution of the present invention has the following advantages: The present invention provides a method and device for determining the center guide hole of a raise boring machine. The method determines the position and distance of at least three control points on the rock wall of the upper segmented chamber of a deep vertical shaft, and determines the position of the center guide hole of the raise boring machine in real time. In this process, as the raise boring machine advances, the center point of the original shaft cannot be identified. By determining the position and distance of at least three control points on the rock wall of the upper segmented chamber, the intersection of the position and the distance is used to determine the position of the center guide hole of the raise boring machine in real time, avoiding the process of repeated measurement in related technologies, and shortening the construction period while ensuring the construction accuracy by measuring the center guide hole position in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a flow chart of a method for determining a center guide hole of a raise boring machine provided in an embodiment of the present invention; Figure 2 1 is a schematic plan view of a segmented chamber on a patio provided according to an embodiment of the present invention; Figure 3 The present invention is a structural block diagram of a device for determining a central guide hole of a raise boring machine provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] According to an embodiment of the present invention, an embodiment of a method for determining the center guide hole of a reverse drilling rig is provided. It should be noted that although the steps shown in the flowchart of the accompanying drawings are shown in a logical order in the flowchart, in some cases, the steps shown or described may be performed in an order different from that shown here.

[0020] This embodiment provides a method for determining the center guide hole of a raise boring machine. Figure 1 As shown, the method comprises the following steps: S101. Based on the design requirements of the raise boring machine operation area, determine the positions and distances of at least three control points on the rock wall of the upper segmented chamber.

[0021] Specifically, based on the design requirements of the raise boring rig operation area, determining the positions and distances of at least three control points on the rock wall of the upper section chamber means determining the center point of the shaft corresponding to the upper section chamber, and based on the center point of the shaft, using a measuring instrument, determining at least three control points on the rock wall of the upper section chamber.

[0022] S102: Based on the position and distance, determine the center guide hole position of the raise boring machine in real time.

[0023] Specifically, based on the position and distance, real-time determination of the center guide hole position of the raise boring machine means taking the determined point as the starting point of the corresponding distance, and forming an intersection between each starting point and the corresponding distance, and taking the intersection as the center guide hole position at the current moment.

[0024] The present invention provides a method and device for determining the center guide hole of a raise boring machine. The method determines the position and distance of at least three control points on the rock wall of the upper segmented chamber of a deep vertical shaft, and determines the position of the center guide hole of the raise boring machine in real time. In this process, as the raise boring machine advances, the center point of the original shaft cannot be identified. By determining the position and distance of at least three control points on the rock wall of the upper segmented chamber, the intersection of the position and the distance is used to determine the position of the center guide hole of the raise boring machine in real time, avoiding the process of repeated measurement in the related technology, and shortening the construction period by measuring the center guide hole position in real time, while ensuring the construction accuracy.

[0025] In an optional implementation, based on the design requirements of the raise boring machine operation area, the positions and distances of at least three control points are determined on the rock wall of the upper stage chamber, including: Based on the design requirements of the raise boring machine operation area, the center point and radius of the shaft related to the upper section chamber are determined; based on the center point of the shaft, at least three distances are determined on the rock wall of the upper section chamber using a measuring instrument; in response to each distance and radius meeting the measurement standards, the point corresponding to the distance is used as the position of the control point.

[0026] Specifically, Figure 2As shown, the plane of the upper segmented chamber of the skylight is exemplarily shown, wherein the skylight center point refers to the center point within the upper segmented chamber operation area, that is, within the skylight boundary line, and the radius is the distance from the skylight center point to the skylight boundary line. The skylight center point and the radius are both determined in the early stage of engineering design based on engineering requirements, that is, based on the design requirements of the raise boring machine operation area. For example, the radius can be 1500 meters, 1600 meters or other values, which are not specifically limited in this embodiment.

[0027] Specifically, based on the center point of the skylight, using a measuring instrument, determining at least three distances on the rock wall of the upper section chamber respectively means placing a measuring instrument at the center point of the skylight, with the floor level of the upper section chamber as ±0, and using the leveling function of the measuring instrument, at a preset horizontal elevation, measuring the distances of at least three points on the rock wall of the chamber wall, with each point corresponding to the distance. The measuring instrument may be a total station or other measuring instrument, and when the floor level of the section chamber above the measuring instrument is ±0, the preset horizontal elevation may be one meter, two meters or other heights, and one meter is usually selected as the preset horizontal elevation, so as to ensure that at least three points measured on the rock wall of the upper section chamber wall are on the same horizontal plane. It should be understood that if Figure 2 As shown, since the rock wall of the upper section chamber is irregular in shape, the distance from the center point of the skylight to the point on the rock wall of the upper section chamber may be greater than the radius or less than the radius. Therefore, it is necessary to determine the measurement standard for each distance and radius.

[0028] Specifically, the distance and radius satisfying the measurement standard means that the corresponding distance is greater than the radius. In response to each distance and radius satisfying the measurement standard, taking the point corresponding to the distance as the position of the control point means taking the position and distance of the point whose distance is greater than the radius as the position and distance of the control point. For example, taking the radius as 1500 meters, Figure 2 As shown, the first distance corresponding to the first control point can be 1765 meters, the second distance corresponding to the second control point can be 1810 meters, and the third control distance corresponding to the third control point can be 1660 meters. After determining the positions of the first control point, the second control point, and the third control point, marks are usually added to the corresponding points, for example, by drilling holes, inserting wooden wedges, driving in fine nails, and exposing top caps as the positions of the corresponding control points.

[0029] In an optional implementation, based on the position and the distance, the center guide hole position of the raise boring machine is determined in real time, including: Select ropes with lengths corresponding to distances respectively; set corresponding ropes at each position as the starting end points of the ropes; straighten at least three ropes horizontally, and use the intersection of the ropes as the central guide hole position of the raise drilling rig at the current moment.

[0030] Specifically, selecting ropes with lengths corresponding to distances respectively means selecting ropes with the same length and distance, or ropes with lengths exceeding the corresponding distances, and marking the corresponding distances, for example, by means of bright paint or by tying knots.

[0031] Specifically, straightening at least three wires horizontally and taking the intersection of the wires as the center guide hole position of the raise boring machine at the current moment means that after determining the starting end points and distances of the wires, when the wires are straightened horizontally, the intersection of at least three wires is unique, so that the intersection of the wires is taken as the center guide hole position of the raise boring machine at the current moment. Figure 2 As shown, taking the example of marking control points by drilling holes and inserting wooden wedges at corresponding points, the wooden wedges corresponding to the first control point, the second control point, and the third control point are fixed with flexible ropes and wooden wedges respectively, so that the center guide hole position of the reverse drilling rig at the current moment is determined after the flexible rope is horizontally straightened.

[0032] In an optional embodiment, the method further includes: Based on the center guide hole position and the deflection rate of the raise boring rig drill rod, the raise boring rig at the current moment is corrected.

[0033] In an optional implementation, based on the center guide hole position and the deflection rate of the raise boring rig drill rod, the raise boring rig at the current moment is corrected, including: A reference line is determined based on the position of the central guide hole and the bottom plate of the upper segmented chamber; a deflection rate is determined based on the reference line and the drill rod of the raise boring rig; and in response to the deflection rate reaching a preset threshold, the raise boring rig at the current moment is corrected.

[0034] Specifically, determining the reference line based on the center guide hole position and the floor of the upper segment chamber means using the vertical direction between the center guide hole position and the floor of the upper segment chamber as the reference line. It should be understood that since at least three positions are in the same horizontal plane, when at least three wire ropes are horizontally straightened, the intersection of the determined wire ropes, that is, the center guide hole position, is still in the horizontal plane. Therefore, it is necessary to use the vertical direction between the center guide hole position and the floor of the upper segment chamber as the reference line, so as to provide a data basis for the subsequent determination of the deflection rate.

[0035] Specifically, based on the baseline and the raise boring rig drill rod, determining the deflection rate means using the vertical direction between the center guide hole position and the floor of the upper section chamber as the baseline, and using the angle between the raise boring rig drill rod and the baseline at the current moment as the deflection rate between the center guide hole position and the raise boring rig drill rod.

[0036] Specifically, when the deflection rate at the corresponding moment is less than a preset threshold, there is no need to correct the wellbore rig, wherein the preset threshold is usually within 0.5% of the well depth or should be lower than the drilling rig parameter ≤1%.

[0037] In this embodiment, a device for determining the center guide hole of a raise boring machine is also provided, and the device is used to implement the above-mentioned embodiments and preferred embodiments, and the descriptions that have been made are not repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0038] This embodiment provides a device for determining the center guide hole of a raise boring machine, such as Figure 3 As shown, including: The parameter determination unit 201 is used to determine the positions and distances of at least three control points on the rock wall of the upper stage chamber based on the design requirements of the raise boring machine operation area. The specific process can be found in the description of step S101 in the above embodiment, which will not be repeated here.

[0039] The center guide hole position determination unit 202 is used to determine the center guide hole position of the raise boring machine in real time based on the position and distance. The specific process can be referred to the relevant description of step S102 in the above embodiment, which will not be repeated here.

[0040] The present invention provides a method and device for determining the center guide hole of a raise boring machine. The device determines the position and distance of at least three control points on the rock wall of the upper segmented chamber of a deep vertical shaft, and determines the position of the center guide hole of the raise boring machine in real time. In this process, as the raise boring machine advances, the center point of the original shaft cannot be identified. By determining the position and distance of at least three control points on the rock wall of the upper segmented chamber, the intersection of the position and the distance is used to determine the position of the center guide hole of the raise boring machine in real time, avoiding the process of repeated measurement in the related technology, and shortening the construction period by measuring the center guide hole position in real time, while ensuring the construction accuracy.

[0041] In an optional implementation manner, the parameter determination unit includes: The point determination subunit is used to determine the center point and radius of the skylight related to the upper section chamber based on the design requirements of the raise boring machine operation area; the distance determination subunit is used to determine at least three distances on the rock wall of the upper section chamber based on the center point of the skylight using a measuring instrument; the position determination subunit is used to respond to each distance and radius meeting the measurement standard, and respectively use the point corresponding to the distance as the position of the control point. The specific process can be referred to the relevant description in the above embodiment, which will not be repeated here.

[0042] In an optional implementation, the center guide hole position determination unit includes: The wire rope selection subunit is used to select wire ropes with lengths and distances corresponding to each other; the endpoint subunit is used to set the corresponding wire rope at each position as the starting endpoint of the wire rope; the central guide hole position determination subunit is used to horizontally straighten at least three wire ropes and use the intersection of the wire ropes as the central guide hole position of the raise boring machine at the current moment. The specific process can be referred to the relevant description in the above embodiment, which will not be repeated here.

[0043] In an optional embodiment, the device further comprises: The deviation correction unit is used to correct the current raise boring machine based on the center guide hole position and the deflection rate of the raise boring machine drill rod. The specific process can be found in the relevant description of the above embodiment, which will not be repeated here.

[0044] In an optional implementation, the correction unit includes: The reference line determination subunit is used to determine the reference line based on the center guide hole position and the bottom plate of the upper segment chamber; the deflection rate determination subunit is used to determine the deflection rate based on the reference line and the drill rod of the raise boring machine; the deviation correction subunit is used to correct the current raise boring machine in response to the deflection rate reaching a preset threshold. The specific process can be referred to the relevant description in the above embodiment, which will not be repeated here.

[0045] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for determining the center guide hole of a raise boring machine, characterized in that: The method comprises: Based on the design requirements of the raise boring machine operation area, determine the positions and distances of at least three control points on the rock wall of the upper section chamber; Based on the position and the distance, the center pilot hole position of the raise boring machine is determined in real time.

2. The method according to claim 1, characterized in that Based on the design requirements of the raise boring machine operation area, the positions and distances of at least three control points are determined on the rock wall of the upper stage chamber, including: Based on the design requirements of the raise boring machine operation area, determine the center point and radius of the skylight related to the upper stage chamber; Based on the center point of the skylight, at least three distances are determined on the rock wall of the upper section chamber using a measuring instrument; In response to each of the distances and the radius satisfying the measurement standard, the point corresponding to the distance is respectively used as the position of the control point.

3. The method according to claim 1, characterized in that: The method of determining the central guide hole position of the raise boring machine in real time based on the position and the distance includes: Selecting ropes with lengths corresponding to the distances respectively; A corresponding line is set at each position as the starting end point of the line; At least three of the wire ropes are horizontally straightened, and the intersection of the wire ropes is used as the central guide hole position of the raise drilling rig at the current moment.

4. The method according to claim 1, characterized in that: The method further comprises: Based on the position of the central guide hole and the deflection rate of the drill pipe of the raise boring rig, the raise boring rig at the current moment is corrected.

5. The method according to claim 4, characterized in that The method of correcting the current raise boring machine based on the position of the central guide hole and the deflection rate of the raise boring machine drill rod comprises: Determining a reference line based on the position of the central guide hole and the bottom plate of the upper segmented chamber; Determining a deflection rate based on the baseline and the raise boring rig drill pipe; In response to the deflection rate reaching a preset threshold, the reverse boring machine at the current moment is corrected.

6. A device for determining the center guide hole of a raise boring machine, characterized in that: The device comprises: A parameter determination unit, used to determine the positions and distances of at least three control points on the rock wall of the upper stage chamber based on the design requirements of the raise boring machine operation area; The center guide hole position determination unit is used to determine the center guide hole position of the raise boring machine in real time based on the position and the distance.

7. The device according to claim 6, characterized in that The parameter determination unit comprises: The point determination subunit is used to determine the center point and radius of the ceiling related to the upper stage chamber based on the design requirements of the raise boring machine operation area; A distance determination subunit is used to determine at least three distances on the rock wall of the upper section chamber based on the center point of the skylight using a measuring instrument; The position determination subunit is used for, in response to each of the distances and the radius satisfying the measurement standard, taking the point corresponding to the distance as the position of the control point.

8. The device according to claim 6, characterized in that The central guide hole position determining unit comprises: A wire rope selection subunit, used for selecting wire ropes with lengths corresponding to the distances respectively; An endpoint subunit, used for setting a corresponding line at each position as a starting endpoint of the line; The central guide hole position determination subunit is used to horizontally straighten at least three of the wire ropes and use the intersection of the wire ropes as the central guide hole position of the raise drilling rig at the current moment.

9. The device according to claim 6, characterized in that The device also includes: The deviation correction unit is used to correct the deviation of the raise boring machine at the current moment based on the position of the central guide hole and the deflection rate of the drill pipe of the raise boring machine.

10. The device according to claim 9, characterized in that The correction unit comprises: A reference line determination subunit, used to determine a reference line based on the position of the central guide hole and the bottom plate of the upper segmented chamber; A deflection rate determination subunit, configured to determine a deflection rate based on the reference line and a raise boring rig drill pipe; The deviation correction subunit is used to correct the deviation of the raise boring machine at the current moment in response to the deviation rate reaching a preset threshold.

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