EP2260471A1 - Three-dimensional implementation method of mine tunnel - Google Patents
Three-dimensional implementation method of mine tunnelInfo
- Publication number
- EP2260471A1 EP2260471A1 EP08873573A EP08873573A EP2260471A1 EP 2260471 A1 EP2260471 A1 EP 2260471A1 EP 08873573 A EP08873573 A EP 08873573A EP 08873573 A EP08873573 A EP 08873573A EP 2260471 A1 EP2260471 A1 EP 2260471A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coal bed
- polylines
- value
- polyline
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 80
- 239000003245 coal Substances 0.000 claims abstract description 99
- 238000012545 processing Methods 0.000 claims abstract description 30
- 230000000630 rising effect Effects 0.000 claims abstract description 26
- 238000005065 mining Methods 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 5
- 238000006467 substitution reaction Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000007796 conventional method Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
Definitions
- the present invention relates to a three-dimensional implementation method of a mine tunnel that is applied to a spatial database management system for underground facilities of a mine to three-dimensionally display the tunnel structure (direction, distribution, depth, etc.) of a mine in which mining has been performed through a monitor, and, more particularly, to a three-dimensional implementation method of a mine tunnel that is capable of giving assistance to visually confirm the propriety of development when designing a tunnel or underground facilities in the vicinity of a mine in which mining has been performed, analyzing and predicting a model of an underground mining view in a three-dimensional space when predicting subsidence of ground at a mine area, analyzing an introduction channel of underground leachate when soil pollution due to the underground leachate occurs, and therefore, being suitably utilized as a three-dimensional mine tunnel database necessary for computer analysis when establishing measures for preventing a mine disaster.
- tunnels such as a vertical shaft, an inclined shaft, a ventilated inclined shaft, a double-track tunnel, a cross tunnel, a subgangway, a raise, etc., are formed in a mine depending upon the distribution of minerals to be mined.
- the mine area in which the mining has been performed is an area where collapse of ground or subsidence of ground may occur any time due to a natural disaster or other disasters.
- a database to predict a point where subsidence of ground is expected without a model view of a tunnel in consideration of disasters at the area in question and allow an engineer to visually confirm the distribution (direction, phase, depth, etc.) of the mined tunnel at the area in question when constructing a tunnel, a skiing ground, or underground facilities.
- a conventional mine tunnel implementation method has used a three-dimensional model view illustrating various mined tunnel structures of a mine or a plan view two- dimensionally illustrating the mined tunnels as a means to predict subsidence of ground.
- the conventional method using the plan view two-dimensionally illustrating the structure of the mine tunnels is impossible to visually confirm the direction-based relation (vertical, horizontal, or inclined) of the mined tunnels and the phase difference between the tunnels, since the mine tunnel is shown only two-dimensionally.
- this conventional method is not impossible to accurately predict a point where subsidence of ground is expected, like the previously described conventional method based on the model view.
- this conventional method brings about inaccurate results in deciding the propriety of development when designing a tunnel or underground facilities. Disclosure of Invention Technical Problem
- the present invention has been made in view of the above problems, and it is an object of the present invention to provide a three-dimensional implementation method of a mine tunnel that is applied to a spatial database management system for underground facilities of a mine to three-dimensionally monitor the tunnel structure (direction, distribution, depth, etc.) of a mine in which mining has been performed through a computer in various directions such that the tunnel structure can be confirmed with the naked eye, thereby analyzing an introduction channel of underground leachate, accurately observing and analyzing a point where subsidence of ground is expected, and greatly contributing to the design of a tunnel or underground facilities.
- the above and other objects can be accomplished by the provision of a three-dimensional implementation method of a mine tunnel, including inputting a coal bed direction segment, a coal bed tilt angle value, and a basic altitude value, which are necessary for three-dimensional implementation of mine tunnel polylines, and initializing an arrangement data structure for storing and referring to the inputted mine tunnel polylines, retrieving nodal points of mine tunnel objects stored in a line object list in the sequence inputted at the input and initialization step to confirm the phase relation between the parent object identifications of the respective line objects, i.e., the parent/child relation between the respective line objects, and refer to the identifications of the parent objects, calculating the number of the parent objects of the respective line objects with respect to the line objects having passed through the phase retrieval step to calculate the number of levels of the level structure constituted by the phase relation between the line objects and process the calculated number of the levels such that the calculated number of the levels can be used as an arrangement reference value, arranging the sequence of the line objects stored in the
- the processing sequence arrangement step includes recognizing the phase relation between the mine tunnel polylines and arranging the processing sequence of the respective polylines depending upon the phase relation, and calculating the rising height of a point acquired by perpendicularly projecting the end point of a segment constituted by the respective polylines in the arranged sequence on the coal bed direction segment vector based on a coal bed angle and applying the calculated rising height to a Z-coordinate value of the end point of the segment to achieve three- dimensional implementation.
- the step of recognizing the phase relation between the mine tunnel polylines and arranging the processing sequence of the respective polylines depending upon the phase relation includes, when a first polyline and a second polyline have a coincident nodal point, excluding a start nodal point of the first polyline and a start nodal point of the second polyline, recognizing the first polyline to be a polyline diverging from the second polyline, i.e., recognizing the first polyline to be a child polyline of the second polyline in the parent/child relation between the first polyline and the second polyline, and arranging the processing sequence of the polylines according to the small number of the parent polylines.
- the step of calculating the rising height of a point acquired by perpendicularly projecting the end point of a segment constituted by the respective polylines in the arranged sequence on the coal bed direction segment vector based on a coal bed angle and applying the calculated rising height to a Z-coordinate value of the end point of the segment to achieve three-dimensional implementation includes applying a height value acquired through the product of a distance value between a point acquired by perpendicularly projecting the segment vector constituted by the mine tunnel polylines on an arbitrary coal bed direction vector according to the coal bed direction vector and a coal bed tilt angle and the origin and a tangent value of the coal bed tilt angle to the Z-coordinate value of the end point of the segment vector constituted by the mine tunnel polylines to achieve three-dimensional implementation of the mine tunnel polylines.
- the present invention with the above-stated construction, it is possible to acquire the coal mining rising value of a point obtained by projecting a two- dimensional tunnel polyline on an arbitrary coal bed direction segment according to the coal bed angle thereof in a spatial database management system for underground facilities of a mine. Therefore, the present invention has the effect of constructing an algorithm to effectively achieve three-dimensional implementation of the existing two- dimensional tunnel and utilizing the three-dimensional tunnel polyline as database.
- the present invention has the effect of giving assistance in designing a tunnel or underground facilities in the vicinity of a mine in which mining has been performed.
- FIG. 1 is a constructional view illustrating a spatial database management system to which the present invention is applied;
- FIG. 2 is a two-dimensional plan view illustrating polylines of a mine tunnel according to the present invention
- FIG. 3 is a view illustrating a method of perpendicularly projecting segments consisting of start and end nodal points of the polylines phase- arranged in FIG. 2 on a coal bed plane to achieve three-dimensional implementation;
- FIG. 4 is a graph illustrating results acquired by applying the three-dimensional implementation method illustrated in FIG. 3 to the respective nodal points of the polylines of FIG. 2;
- FIG. 5 is a flow chart illustrating a three-dimensional implementation method of a mine tunnel according to the present invention.
- FIG. 6 is a flow chart illustrating an input and initialization step of the three- dimensional implementation method according to the present invention.
- FIG. 7 is a flow chart illustrating a phase retrieval step of the three-dimensional implementation method according to the present invention.
- FIG. 8 is a flow chart illustrating a phase level classification step of the three- dimensional implementation method according to the present invention.
- FIG. 9 is a flow chart illustrating a processing sequence arrangement step of the three-dimensional implementation method according to the present invention.
- FIG. 10 is a flow chart illustrating a three-dimensional implementation step of the three-dimensional implementation method according to the present invention. Best Mode for Carrying Out the Invention
- the present invention relates to a principle of three-dimensionally implementing a mine tunnel in the form of a two-dimensional plan view through perpendicular projection on a coal bed plane utilizing a property of the mine tunnel in that coal is mined in parallel to the coal bed plane below a coal bed and coal ore is collected by gravity.
- the present invention provides a record medium, readable by a computer, on which a program for implementing a first function to phase-arrange mine tunnel polylines in a mining sequence and a second function to perpendicularly project nodal points of the respective polylines on arbitrary coal bed direction segments according to the arranged sequence to calculate rising heights depending upon coal bed tilt angles of the projected points for three-dimensional implementation, to a spatial database management system with a processor.
- a Z-coordinate value of a three-dimensional point on a coal bed plane in a three- dimensional space of the Z-coordinate value of a segment constituted by mine tunnel polylines according to the present invention is acquired by the following Mathematical equation 1.
- Z is a Z-coordinate value at the end of a segment constituted by mine tunnel polylines
- ⁇ is a coal bed tilt angle
- Lv is an arbitrary segment vector constituted by the mine tunnel polylines
- Bv is a coal bed direction segment vector
- (Lv-Bv) is a dot product value of the mine tunnel polyline segment vector and the coal bed direction segment vector in a two-dimensional space.
- FIG. 1 is a constructional view illustrating a spatial database management system to which the present invention is applied.
- the spatial database management system mainly includes an inquiry processing system 10 and a storage system 20.
- a mine tunnel polyline three-dimensional processor 12 one of the principal operators of the spatial database management system to which the present invention is applied, is configured to be mounted in an inquiry execution unit 11 in the inquiry processing system 10.
- the storage system 20 stores a program for three-dimensionally implementing mine tunnel polylines and data processed by the inquiry processing system 10.
- the inquiry processing system 10 includes an input unit 30 for reading a fundamental two-dimensional mine tunnel topographical map and inputting information necessary for three-dimensional implementation of a mine tunnel or inputting various kinds of command information to be processed.
- the inquiry processing system 10 includes a display unit 40 for allowing a user to confirm three-dimensional data of the mine tunnel processed by the input unit 30 and edited screen data of the spatial database management system with the naked eye.
- the inquiry processing system 10 includes a communication unit 50 for transmitting the three-dimensional data of the mine tunnel processed in the inquiry processing system 10 to the outside or receiving fundamental data of the mine tunnel from the outside.
- FIG. 2 is a two-dimensional plan view illustrating examples of mine tunnel polylines according to the present invention. Specifically, FIG. 2 illustrates polylines A, B, C, and D, representing mine tunnels, a coal bed direction segment tilted at an angle of 45 degrees, and a phase sequence of A->D, A->B, and A->B->C, showing a mining sequence. Also, FIG.
- nodal points constituting the respective polylines i.e., nodal points al, a2, a3, and a4 of the polyline A, nodal points bl, b2, b3, and b4 of the polyline B starting from the nodal point a2 of the polyline A, nodal points cl, c2, and c3 of the polyline C starting from the nodal point b3 of the polyline B, and nodal points dl, d2, and d3 of the polyline D starting from the nodal point a3 of the polyline A.
- the parent/child phase relation between the mine tunnel polylines is characterized in that, when a polyline diverges from a nodal point excluding a start point of the parent polyline, the corresponding polyline becomes a child polyline.
- the polyline D diverges from the nodal point a3 of the polyline A, with the result that the polyline D becomes a child polyline of the polyline A.
- the polyline B diverges from the nodal point a2 of the polyline A at the nodal point bl of the polyline B, with the result that the polyline A becomes a parent polyline of the polyline B.
- the polyline B becomes a parent polyline of the polyline C.
- FIG. 3 is a view illustrating a method of perpendicularly projecting segments consisting of start and end nodal points of the polylines phase- arranged in FIG. 2 on a coal bed plane to achieve three-dimensional implementation.
- FIG. 3 illustrates a method of perpendicularly projecting an end point
- FIG. 4 is a graph illustrating results acquired by applying the three-dimensional implementation method illustrated in FIG. 3 to the respective nodal points of the polylines of FIG. 2.
- FIG. 5 is a flow chart illustrating a three-dimensional implementation method of a mine tunnel according to the present invention.
- the three- dimensional implementation method includes an input and initialization step (501), a phase retrieval step (502), a phase level classification step (503), a processing sequence arrangement step (504), and a three-dimensional implementation step (505), which are carried out in sequence.
- the respective steps will be described in detail with reference to FIGS. 6 to 10.
- FIG. 6 is a flow chart illustrating the input and initialization step
- FIG. 7 is a flow chart illustrating the phase retrieval step
- FIG. 8 is a flow chart illustrating the phase level classification step
- FIG. 9 is a flow chart illustrating the processing sequence arrangement step
- FIG. 10 is a flow chart illustrating the three-dimensional implementation step.
- a line object generally indicates a mine tunnel polyline.
- the line object is defined as an object consisting of an identification attribute identifying itself, a parent object identification (PID) attribute indicating a parent object, a level (LEVEL) attribute necessary to perform phase arrangement between the respective polylines, and an arrangement list (NODES) attribute storing nodes constituting mine tunnel polylines.
- PID parent object identification
- LEVEL level
- NODES arrangement list
- the line object indicates the mine tunnel polyline
- the arrangement structure for storing line objects is referred to as a line object list.
- FIG. 6 is a flow chart illustrating the input and initialization step. That is, FIG. 6 illustrates a step of inputting a coal bed direction segment, a coal bed tilt angle value, and a basic altitude value, which are necessary for three-dimensional implementation of mine tunnel polylines, and initializing an arrangement data structure for storing and referring to the inputted mine tunnel polylines.
- a start point and an end point constituting the coal bed direction segment are inputted (601). And the start point is subtracted from the inputted end point to substitute the subtraction result into a coal bed direction vector Bv, such that a perpendicular projection calculation is easily performed, and the coal bed direction vector Bv is stored as a unit vector (602).
- a line object list variable P having information of mine tunnel polylines to be three-dimensionally implemented is created, and a temporary serial number variable (NID) of an object identification (ID) for granting identifications (ID) of the polylines is initialized to be 1 (605).
- NID temporary serial number variable
- mine tunnel polylines to be three-dimensionally implemented are read out from the storage system in the spatial database management system to refer to as a line object reference variable and the object identification (ID) is initialized to be the value of the temporary serial number variable (NID) (607).
- ID object identification
- ID is increased by 1, and the increased temporary serial number variable is substituted into the object identification (ID) of the next object (609).
- FIG. 7 is a flow chart illustrating the phase retrieval step. Nodal points of the objects stored in the line object list P are retrieved with respect to the mine tunnel polyline objects stored in the line object list P in the sequence inputted at the input step as described with reference to FIG. 6 to confirm the phase relation between the parent object identifications (PID) of the respective line objects, i.e., the parent/child relation between the respective line objects, and refer to the identifications (ID) of the parent objects.
- PID parent object identifications
- processes 703 to 712 are repeatedly carried out with respect to the respective line objects stored in the line object list P processed at the input and initialization step (501) to initialize the parent object identification (PID) attributes of the respective line objects to be 0.
- PID parent object identification
- an i" 1 line object is referred to as a line object reference variable Pi from the line object list, and a first nodal point in a nodal point list attribute of the line object reference variable Pi is substituted into a two-dimensional point variable Ns (703). And then, the processes 704 to 712 are repeatedly carried out with respect to line objects excluding the current line object reference variable Pi.
- a k" 1 line object is referred to as a line object reference variable Pk from the line object list, and respective nodal points are enumerated with respect to the remaining nodal points of the line object Pk, excluding a start nodal point of the line object Pk, (706) to determine whether there exists a nodal point coinciding with the point Ns on two-dimensional coordinates (707).
- FIG. 8 is a flow chart illustrating the phase level classification step, which is a step of calculating the number of the parent objects of the respective line objects with respect to the line objects having passed through the phase retrieval step described with reference to FIG. 7 to calculate the number of levels of the level structure constituted by the phase relation between the corresponding line objects and process the calculated number of the levels such that the calculated number of the levels can be used as an arrangement reference value.
- a process of adding 1 to the i th item is repeatedly carried out in loop to enumerate the line objects the parent object identification (PID) values of which have been processed from the line object list to refer to as an i" 1 line object Pi, initialize the level attribute value of the line object Pi to be 0, and substitute the line object Pi and the parent object identification (PID) into a temporary variable Cp (803).
- PID parent object identification
- FIG. 9 is a flow chart illustrating the processing sequence arrangement step, which is a step of arranging the sequence of the line objects stored in the line object list P with respect to the line objects the number of the parent objects of which is accumulated to the level attribute value through the execution of the processes described with reference to FIG. 7 in ascending order with the level attribute value as a reference value.
- FIG. 10 is a flow chart illustrating the three-dimensional implementation step, which is a step of acquiring a height value of a projection point existing on the coal bed plane in the three-dimensional space tilted at a coal bed angle of a point perpendicularly projected on the coal bed direction vector, with respect to the line objects of the line object list P the processing sequence of which is arranged through the processes described with reference to the flow charts of FIGS. 7 to 9, and granting the acquired height value to Z-coordinate values of the nodal points of the respective line object to achieve three-dimensional implementation.
- FIG. 9 (1001, 1002), an i" 1 line object of the line object list P is referred to as Pi, and the basic altitude value Bz inputted at the input and initialization step described with reference to FIG. 5 is substituted and copied to the Z-coordinate value of the first nodal point of the Pi (1003) to achieve initialization.
- the segment vector having the start point Ns and the end point Ne, constituting the mine tunnel polyline segment acquired at the process 1016 is stored in a vector variable Lv as a segment vector to be currently processed, the dot product of the segment vector and the coal bed vector Bv inputted at the input step described with reference to FIG. 6 is acquired, and the dot product value is stored in a temporary variable C (1017).
- the mathematical meaning of the dot product value C is in that the mine tunnel segment vector is perpendicularly projected on the coal bed vector. Therefore, a vector acquired by interpolating the coal bed direction vector Bv at a rate of C becomes a projection vector acquired by perpendicularly projecting the mine tunnel segment vector Lv on the coal bed vector Bv.
- the rising height value of the projection point as calculated above is added to the Z- coordinate coal mining rising value Zp of the previous nodal point.
- the resultant value is stored in a variable Zc and is applied to the Z-coordinate value of the end nodal point Ne of the segment being currently processed to achieve three-dimensional implementation (1019).
- a mine tunnel polyline B consisting of nodal points, i.e., b 1(40,40,0), b2(60,40,0), b3(70,50,0), and b4(90,60,0), all of which have X, Y, and Z coordinate values with a Z value of 0, is inputted (607), the inputted mine tunnel polyline B is referred to as a line object identification (ID) of which is 1 and added to the line object list P (608).
- ID line object identification
- a polyline A consisting of nodal points, i.e., al (20,20,0), a2(40,40,0), a3(40,50,0), and a4(90,60,0), is inputted (607), the inputted polyline A is referred to as a line object identification (ID) of which is 2 and added to the line object list P (608).
- ID line object identification
- the line objects B and A stored in the line object list are enumerated (704), and the start nodal point bl of the polyline B is compared with the nodal points, excluding the start nodal points, of the enumerated line objects to determine the parent/ child phase relation between line objects indicating the mine tunnel polylines stored in the line object list P in the sequence of B and A (705 to 708).
- the start nodal point b 1(40,40,0) of the polyline B coincides in coordinate value with the intermediate nodal point a2(40,40,0) of the polyline A (708), with the result that the polyline B is determined as the child of the polyline A, and the identification (ID) attribute value, which is 2, of the polyline A is stored in the parent object identification (ID) attribute of the polyline B (709).
- the number of high-level parent objects is substituted and stored into the level attribute values of the line objects B and A stored in the line object list.
- the polyline B having passed through the phase level classification step has a parent object identification (PID) attribute of 2. Consequently, the procedure including the determination processes 804 to 809 illustrated in the flow chart of FIG. 7 is repeatedly carried out to retrieve high-level parent objects coinciding with the identification (ID) in question. For example, the polyline A may be retrieved.
- the level attribute value of the polyline B is increased by 1 (810) such that the level attribute value of the polyline B becomes 1.
- the number of the parent objects is 1, and therefore, the polyline B is classified as one level according to the phase level classification.
- the polyline A has a parent object identification (PID) of 0, with the result that the processes 804 to 811 cannot be carried out, and therefore, the level of the polyline A is initialized to be 0 (803).
- the storage sequence of the polylines B and A stored in the sequence of B and A is arranged in ascending order using a level attribute value such that the storage is achieved in the sequence of A and B, i.e., the high-level parent object is first stored and the low-level child object is subsequently stored, and then the arrangement processes 901 to 909 are carried out to change the sequence of B and A into the sequence of A and B and store the sequence of A and B in the line object list P having passed through the phase level classification step.
- the polyline A is first processed according to the sequence arranged and stored in the line object list P.
- the start nodal point of the polyline A is initialized to be the basic altitude value, which is 0, inputted at the input step, with the result that the start nodal point of the polyline A becomes al (20,20,0). Since the polyline A has no parent object, the retrieval processes 1005 to 1013 of acquiring the Z-coordinate value of the diverging nodal point of the parent object are not carried out.
- the Z-coordinate value, which is 0, of the start nodal point of the polyline A is temporarily stored in the previous altitude value Zp (1014), a segment vector Lv(20,20) connecting al and a2 is acquired, and a dot product value 28 of the segment vector Lv(20,20) and the coal bed direction segment vector Bv(0.707,0.707) stored at the input step is acquired (1017).
- the coal bed direction segment vector Bv is interpolated with the dot product value 28 to acquire a vector magnitude value of the projection vector (20,20).
- the height value of the projection vector is calculated using an equation of coal bed tilt angle (tan) * vector magnitude value of the projection vector with the acquired vector magnitude value of the projection vector as the base of a right triangle, it is possible to acquire a three-dimensional point using a2(40,40,28) shown in FIG. 4 as the Z-coordinate value of the end point of the corresponding segment in the three- dimensional space.
- the above process is applied to the height value of the Z- coordinate of the end point of the segment for each polyline to achieve three-dimensional implementation.
- the three-dimensional implementation method of the mine tunnel according to the present invention is capable of acquiring the coal mining rising value of a point obtained by projecting a two-dimensional tunnel polyline on an arbitrary coal bed direction segment according to the coal bed angle thereof in a spatial database management system for underground facilities of a mine, thereby constructing an algorithm to effectively achieve three-dimensional implementation of the existing two-dimensional tunnel and utilizing the three-dimensional tunnel polyline as a database.
- the three-dimensional implementation method of the mine tunnel according to the present invention is capable of accurately predicting and analyzing, with the naked eye, a point where subsidence of ground is expected even when analyzing subsidence of ground which may occur due to mining, thereby giving assistance in designing a tunnel or underground facilities in the vicinity of a mine in which mining has been performed.
- the present invention is industrially applicable to three-dimensional implementation of the mine tunnel.
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KR1020080028962A KR100860797B1 (en) | 2008-03-28 | 2008-03-28 | Method for three dimensionally implementing mine tunnel |
PCT/KR2008/007073 WO2009119960A1 (en) | 2008-03-28 | 2008-11-28 | Three-dimensional implementation method of mine tunnel |
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EP2260471A4 EP2260471A4 (en) | 2014-08-20 |
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WO2016115579A2 (en) * | 2014-09-10 | 2016-07-21 | Mine Rp Holdings (Pty) Limited | A system and a method for life of mine planning and cost control |
CN104863589A (en) * | 2015-03-30 | 2015-08-26 | 东北大学 | Feature-based parametric modeling system and method for three-dimensional model of mining method used for underground mine |
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