CN114580218B - Tailing pond safety coefficient measuring method and device - Google Patents
Tailing pond safety coefficient measuring method and device Download PDFInfo
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- CN114580218B CN114580218B CN202210488942.3A CN202210488942A CN114580218B CN 114580218 B CN114580218 B CN 114580218B CN 202210488942 A CN202210488942 A CN 202210488942A CN 114580218 B CN114580218 B CN 114580218B
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Abstract
The invention provides a method and a device for measuring the safety coefficient of a tailing pond, which relate to the technical field of tailing monitoring and comprise the following steps: measuring and obtaining surface characteristic data of the tailing pond and establishing a three-dimensional model according to the surface characteristic data; measuring and obtaining position information of a plurality of wetting points, and fitting by using the position data of the plurality of wetting points to form a wetting line distribution function; and calculating the dynamic safety coefficient of the tailing pond by solving the dynamic intersection point of the saturation line function and each area. The invention can evaluate whether the tailing pond is safe or not through a plurality of angles, and a plurality of data are transmitted into a computer in real time for calculation, so that the judgment process is more timely. The invention also provides a tailing pond measuring device which is used for monitoring the safety state of the tailing pond in real time and solving the technical problems that the safety of the tailing pond cannot be effectively analyzed in real time and the deviation of the measuring result is large in the prior art.
Description
Technical Field
The invention relates to the technical field of tailing monitoring, in particular to a method and a device for measuring the safety coefficient of a tailing pond.
Background
The tailing pond is formed by damming and intercepting a valley opening or surrounding land and is used for piling up and storing metal or nonmetal mines and discharging tailings or other industrial waste residues after ore separation, and the tailing pond is the largest environmental protection engineering project of mine enterprises. The tailing pond can prevent the tailing from being discharged to rivers, lakes, deserts and grasslands, and the tailing pond is required to be built in a mine dressing plant as long as the tailing is generated. Therefore, the tailing pond is an essential component for the production of the mine concentrating mill. On the other hand, the dam break of the tailing pond is the most common one in the safety accidents of the tailing pond, once the tailing pond breaks, the discharged fluid is a mixture of tailing sand and water, the mixture is similar to the flow of slurry, and the mud-rock flow discharged after the dam break can cause serious casualties, property loss and environmental pollution. Therefore, the safety risk assessment work of the dam break of the tailing pond has important significance for the prevention work of the dam break of the tailing pond.
In the prior art, a water level measuring device is generally pre-buried in a tailing dam to measure a saturation line, or three-dimensional scanning equipment is used for scanning surface data of a tailing pond to measure the change conditions of a curved surface and inclination of a dry beach of the tailing pond to determine whether the tailing pond is safe or not.
However, currently, a long time is required for judging a measured result, the safety of the tailing pond cannot be effectively analyzed in real time, and meanwhile, the tailing pond is single in measurement mode and large in measurement result deviation.
Disclosure of Invention
The invention aims to provide a method and a device for measuring the safety coefficient of a tailing pond, so as to solve the technical problems that the safety of the tailing pond cannot be effectively analyzed in real time and the deviation of the measurement result is large in the prior art.
The invention provides a method for measuring the safety coefficient of a tailing pond, which comprises the following steps:
measuring and obtaining surface characteristic data of a tailing pond;
carrying out model establishment by using the obtained surface characteristic data to obtain a three-dimensional model of the tailing pond, and dividing the established three-dimensional model into a plurality of areas;
measuring and obtaining position information of a plurality of wetting points, and fitting by using the position data of the plurality of wetting points to form a wetting line distribution function;
and calculating the dynamic safety coefficient of the tailing pond by solving the dynamic intersection point of the saturation line function and each area.
In an alternative embodiment, the measuring and obtaining position information of the plurality of wetting points includes:
determining a plurality of sections in a tailing pond, arranging a plurality of wetting line measuring points on each section, and enabling the plurality of wetting line measuring points in each section to be distributed at intervals along the vertical direction.
In an alternative embodiment, the surface characteristic data includes downstream escape point monitoring values;
setting the monitoring value of the downstream escape point as a starting point of a three-dimensional model and a starting point of a saturation line;
and when the fitted wetting line distribution function is corrected, the monitoring value of the downstream escape point is brought into the wetting line distribution function for correction.
In an alternative embodiment, dividing the established stereo model into a plurality of regions comprises:
dividing the tailing pond into a plurality of generalized subareas according to the diameter of tailing particles in the tailing pond;
based on the tailing boundary points with the same diameter, connecting and fitting to form a boundary function;
dividing the stereo model based on each partition boundary function;
and assigning parameters to each divided generalized partition, wherein the parameters comprise an internal friction angle, volume weight and cohesive force.
In an alternative embodiment, the step of dividing the tailings pond into a plurality of generalized partitions according to the diameter of the tailings particles of the tailings pond comprises:
the method comprises the following steps of dividing tailing particles of a tailing pond into medium tailing sand, fine tailing sand, silt tailing soil and clay tailing, wherein the average particle size of the medium tailing sand is larger than 0.35mm, the average particle size of the fine tailing sand is larger than 0.2mm and smaller than or equal to 0.35mm, the average particle size of the silt tailing sand is larger than 0.74mm and smaller than or equal to 0.2mm, the average particle size of the silt tailing soil is larger than 0.05mm and smaller than or equal to 0.74mm, and the average particle size of the clay tailing is smaller than or equal to 0.05 mm.
In an alternative embodiment, said dividing the tailings pond into a plurality of generalized sections according to the diameter of the tailings particles of the tailings pond further comprises:
surveying boundary points B of the tailing particles with different diameters measured by drilling holes in the middle period;
fitting the demarcation points B of the plurality of tailing particles to obtain a function of generalized subarea demarcation;
obtaining a boundary point A by calculating the intersection point of the generalized division boundary and the initial dam;
and calculating the intersection point of the generalized division boundary and the surface of the tailing dam to obtain a boundary point C.
In an alternative embodiment, the surface feature data includes geometric fixed data and geometric variable data:
the geometric fixed data comprise coordinates of a control point of the initial dam profile and coordinates of a feature point of the foundation;
the geometric variation data comprises beach top elevation T, an accumulation dam outer slope W and a dry beach slope G;
wherein, according to the measured beach top elevation TiPile-up dam outer slope ratio WiAnd dry beach slope ratio GiThe numerical value of (2) judges whether the tailing dam is safe or not.
In an alternative embodiment, the dividing the stereoscopic model into a plurality of regions further comprises dividing into a plurality of bars;
the safety factor calculation mode comprises the following formula:
in the formula (I), the compound is shown in the specification,
in the case of a heavy state,
in order to achieve an effective cohesion force,
in order to have an effective internal friction angle,
is the pore pressure of the nth bar,
the width of the strip is equal to the width of the strip,
is an included angle between the bottom surface of the bar block and the horizontal direction,
the coefficients are calculated for the nth slice.
In alternative embodiments, the weight is greater than
The dry weight is above the saturation line and the saturation weight is below the saturation line, the function is described as:
in the formula (I), the compound is shown in the specification,
for the depth of the intersection of the line in each bar with the wetting line,
the dry weight of the tailings is the dry weight,
in order to be of a saturation severity,
the x coordinate to the right of the bar n,
is the x coordinate on the left side of the bar n,
is the height of the bar.
The tailing pond measuring device provided by the invention comprises the tailing pond safety coefficient measuring method for real-time operation.
The invention provides a method for measuring the safety coefficient of a tailing pond, which comprises the following steps: measuring and obtaining surface characteristic data of a tailing pond; carrying out model establishment by using the obtained surface characteristic data to obtain a three-dimensional model of the tailing pond, and dividing the established three-dimensional model into a plurality of areas; measuring and obtaining position information of a plurality of wetting points, and fitting by using the position data of the plurality of wetting points to form a wetting line distribution function; and calculating the dynamic safety coefficient of the tailing pond by solving the dynamic intersection point of the saturation line function and each area. The invention also provides a tailing pond measuring device, so that an operator can monitor the safety state of the tailing pond in real time through the tailing pond measuring device, the technical problems that the safety of the tailing pond cannot be analyzed effectively in real time and the deviation of the measuring result is large in the prior art are solved, and the technical effects that whether the tailing pond is safe or not can be analyzed in time and the safety coefficient of the tailing pond can be measured more accurately are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for measuring the safety factor of a tailings pond according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a method for measuring the safety factor of a tailings pond according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a method for measuring the safety factor of a tailings pond according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another method for measuring the safety factor of the tailings pond according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
As shown in fig. 1 to 4, the method for measuring the safety factor of the tailings pond provided by the embodiment of the invention comprises the following steps: measuring and obtaining surface characteristic data of a tailing pond; carrying out model establishment by using the obtained surface characteristic data to obtain a three-dimensional model of the tailing pond, and dividing the established three-dimensional model into a plurality of areas; measuring and obtaining position information of a plurality of wetting points, and fitting by using the position data of the plurality of wetting points to form a wetting line distribution function; and calculating the dynamic safety coefficient of the tailing pond by solving the dynamic intersection point of the saturation line function and each area.
It should be noted that, the method for measuring the surface characteristics of the tailing pond in this embodiment includes manual measurement, laser measurement and satellite measurement, where the measured surface characteristic data mentioned in this embodiment is measured along a profile of the tailing pond in the height direction, further, the three-dimensional model includes a three-dimensional data model, the three-dimensional data model of the tailing pond is divided into a plurality of regions, each region is provided with an infiltration point measuring device, infiltration point position information measured by the plurality of infiltration point measuring devices is used to remove infiltration point position information with a large error, an infiltration line distribution function can be fitted in a minimum variance manner, the proportion of contacting tailings and water in the tailing pond is observed by observing the position information of an intersection point of an infiltration line and a tailing dam, the dynamic safety factor of the tailing pond is calculated by transmitting the position information of the intersection point of the infiltration line and the region edge into preset software, whether the tailing pond is safe or not can be analyzed in time, and meanwhile, the safety coefficient measuring result of the tailing pond is more accurate.
The method for measuring the safety coefficient of the tailing pond provided by the embodiment of the invention comprises the following steps: measuring and obtaining surface characteristic data of a tailing pond; carrying out model establishment by using the obtained surface characteristic data to obtain a three-dimensional model of the tailing pond, and dividing the established three-dimensional model into a plurality of areas; measuring and obtaining position information of a plurality of infiltration points, and fitting by using the position data of the plurality of infiltration points to form an infiltration line distribution function; and calculating the dynamic safety coefficient of the tailing pond by solving the dynamic intersection point of the saturation line function and each area. The embodiment of the invention also provides a tailing pond measuring device, so that an operator can monitor the safety state of the tailing pond in real time through the tailing pond measuring device, the technical problems that the safety of the tailing pond cannot be analyzed effectively in real time and the deviation of the measuring result is large in the prior art are solved, and the technical effects that whether the tailing pond is safe or not can be analyzed in time and the safety coefficient measuring result of the tailing pond is more accurate are achieved.
In an alternative embodiment, measuring and obtaining positional information for a plurality of wetted sites comprises: determining a plurality of sections in a tailing pond, arranging a plurality of wetting line measuring points on each section, and enabling the plurality of wetting line measuring points in each section to be distributed at intervals along the vertical direction.
In this embodiment, a plurality of wetting line measuring devices may be disposed in each cross section, and each wetting line measuring device is disposed at a wetting line measuring point, where each wetting line measuring device may employ a humidity tester, and determine whether each wetting point is wetted by the humidity tester, so as to determine a range of a wetting line.
In an alternative embodiment, the surface characteristic data includes downstream escape point monitoring values; setting the monitoring value of the downstream escape point as the starting point of the three-dimensional model and the starting point of the saturation line; and when the fitting is carried out to correct the saturation line distribution function, substituting the monitoring value of the downstream escape point into the saturation line distribution function for correction.
In this embodiment, the method for measuring the downstream escape point monitoring value includes manual measurement, the downstream escape point is a starting point of an infiltration line, that is, an intersection point of an initial dam outer slope and a water surface, and in a coordinate system using the lowest point of the dam profile as an origin, an infiltration line function formed by fitting the infiltration points is brought into the downstream escape point to play a role in correcting the infiltration line function.
In an alternative embodiment, dividing the established stereo model into a plurality of regions comprises: dividing the tailing pond into a plurality of generalized subareas according to the diameter of tailing particles in the tailing pond; based on connecting and fitting the tailing dividing points with the same diameter to form a dividing line function; dividing the three-dimensional model based on each partition boundary function; and assigning parameters to each divided generalized partition, wherein the parameters comprise an internal friction angle, volume weight and cohesive force.
In this embodiment, the coordinates of the boundary points of the tailings with different diameters are confirmed through an exploration mode, the coordinates of the same type of the tailings boundary points are fitted, the boundary points with larger errors are removed, a function of the boundary of one divided generalized partition is obtained, and the friction angle, the volume weight and the cohesive force of each divided generalized partition are measured and given numerical values.
In an alternative embodiment, the step of dividing the tailings pond into a plurality of generalized zones according to the diameter of the tailings particles of the tailings pond comprises: the method comprises the following steps of dividing tailing particles in a tailing pond into tailing medium sand, tailing fine sand, tailing powder soil and tailing clay, wherein the average particle size of the tailing medium sand is larger than 0.35mm, the average particle size of the tailing fine sand is larger than 0.2mm and smaller than or equal to 0.35mm, the average particle size of the tailing sand is larger than 0.74mm and smaller than or equal to 0.2mm, the average particle size of the tailing powder soil is larger than 0.05mm and smaller than or equal to 0.74mm, and the average particle size of the tailing clay is smaller than or equal to 0.05 mm.
In the embodiment, the boundary points of the adjacent tailings sands with different diameters are marked by extending into the tailings dam for surveying, the particle diameters are subdivided and can be divided into five gears of tailing medium sand, tailing fine sand, tailing soil and tailing clay, the boundary point is arranged between every two adjacent gears, the boundary points with different particle diameters are fitted to form boundary functions of a plurality of generalized partitions, the parts which are not explored are divided through a formula of the boundary functions, parameters of the parts which are not explored are simulated, the exploration time and financial resources are saved, and meanwhile, the exploration effect is more comprehensive.
In an alternative embodiment, dividing the tailings pond into a plurality of generalized zones according to the diameter of the tailings particles of the tailings pond further comprises: surveying boundary points B of the tailing particles with different diameters measured by drilling in the middle period; fitting a plurality of boundary points B of the tailing particles to obtain a function of the generalized subarea boundary; obtaining a boundary point A by calculating the intersection point of the generalized division boundary and the initial dam; and calculating the intersection point of the generalized division boundary and the surface of the tailing dam to obtain a boundary point C.
In this embodiment, as shown in fig. 2, a plurality of exploration holes may be provided in the x-axis direction, the plurality of exploration holes are arranged at intervals in the x-axis direction, the extending direction of each exploration hole is along the negative direction of the y-axis, each exploration hole may have a plurality of boundary points B, the boundary points B with the same diameter range of the tailings on both sides are fitted, the numerical value with a large error is removed, a function of a generalized partition is obtained, and the intersection point of the boundary function and the initial dam in the geometrically fixed data is determined as a boundary point a; and meanwhile, the intersection point of the generalized division boundary line and the surface of the tailing dam is calculated, so that a boundary point C can be obtained, and the distribution condition of the tailing sands with different diameters in the tailing dam can be observed more conveniently.
In an alternative embodiment, the surface feature data comprises geometry fixation data and geometry variation data: the geometric fixed data comprise coordinates of a control point of the initial dam profile and coordinates of a characteristic point of the foundation; the geometric variation data comprises beach top elevation T, an accumulation dam outer slope W and a dry beach slope G; wherein, according to the measured beach top elevation TiPile-up dam outer slope ratio WiAnd dry beach slope ratio GiThe numerical value of (2) judges whether the tailing dam is safe or not.
In this embodiment, the geometric fixed data is fixed data, wherein the dam profile control point coordinates are the end of the initial dam outer slope far away from the tailing dam, taking fig. 4 as an example, the dam profile control point is taken as the origin, the horizontal direction is the positive direction of the x axis rightward, the vertical direction is upward, the coordinate system shown in fig. 3 is established for the positive direction of the y axis, the position relationship of each observation point and each observation line can be conveniently observed, meanwhile, the coordinates of the foundation characteristic points include the position information of the end points at the two ends of the foundation and the intersection point of the contour of every two different slopes of the foundation, and further, the beach top elevation T is the heightiThe difference value of the beach top highest point and the height direction of the dam section control point is the y value of the beach top highest point;pile up dam external slope ratio WiThe tangent value of an included angle between the outer slope W of the accumulation dam and the positive direction of the x axis; dry beach slope ratio GiThe tangent value of the included angle between the dry beach slope G and the negative direction of the x axis is obtained, and the beach top elevation T is preset through softwareiPile-up dam outer slope ratio WiAnd dry beach slope ratio GiRange of, at beach top elevation TiThe external slope ratio W of the accumulation damiAnd dry beach slope ratio GiAnd alarming when the preset value is reached or exceeded.
In an alternative embodiment, partitioning the data model to form a plurality of regions further comprises partitioning into a plurality of chunks; the safety factor calculation mode comprises the following formula:
in the formula (I), the compound is shown in the specification,
in the case of severe weight,
in order to achieve an effective cohesion force,
in order to have an effective internal friction angle,
is the pore pressure of the nth bar,
the width of the strip is the width of the strip,
is the included angle between the bottom surface of the bar block and the horizontal direction,
the coefficients are calculated for the nth slice.
In an alternative embodiment, the severity is the dry severity above the saturation line and the saturation severity below the saturation line, the function being described as:
in the formula (I), the compound is shown in the specification,
for the depth of the intersection of the line in each bar with the wetting line,
the dryness of the tailings is the dry weight of the tailings,
in order to be of a saturation severity,
the x-coordinate to the right of the bar n,
the x-coordinate on the left side of the bar n,
is the height of the bar.
The tailing pond measuring device provided by the invention operates in real time based on the tailing pond safety coefficient measuring method.
The tailing pond measuring device provided by the embodiment of the invention enables an operator to monitor the safety state of the tailing pond in real time through the tailing pond measuring device, relieves the technical problems that the safety of the tailing pond cannot be effectively analyzed in real time and the measuring result has larger deviation in the prior art, and achieves the technical effects of timely analyzing whether the tailing pond is safe and simultaneously more accurately measuring the safety coefficient of the tailing pond.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A tailing pond safety factor measuring method is characterized by comprising the following steps:
measuring and obtaining surface characteristic data of a tailing pond;
carrying out model establishment by using the obtained surface characteristic data to obtain a three-dimensional model of the tailing pond, and dividing the established three-dimensional model into a plurality of areas;
measuring and obtaining position information of a plurality of infiltration points, and fitting by using the position data of the plurality of infiltration points to form an infiltration line distribution function;
calculating the dynamic safety coefficient of the tailing pond by solving the dynamic intersection point of the saturation line function and each area;
dividing the established stereo model into a plurality of regions comprises:
dividing the tailing pond into a plurality of generalized subareas according to the diameter of tailing particles in the tailing pond;
based on the tailing boundary points with the same diameter, connecting and fitting to form a boundary function;
dividing the three-dimensional model based on each partition boundary function;
giving parameters to each divided generalized partition, wherein the parameters comprise an internal friction angle, volume weight and cohesive force;
the division of the stereo model into a plurality of regions also comprises the division into a plurality of strips;
the safety factor is calculated by the following formula:
in the formula (I), the compound is shown in the specification,
in the case of a heavy state,
in order to achieve an effective cohesive force,
in order to have an effective internal friction angle,
for the pore pressure of the nth bar,
the width of the strip is equal to the width of the strip,
is an included angle between the bottom surface of the bar block and the horizontal direction,
the coefficients are calculated for the nth slice.
2. The method for measuring the safety factor of the tailings pond of claim 1, wherein the measuring and obtaining the position information of the plurality of infiltration points comprises:
determining a plurality of sections in a tailing pond, arranging a plurality of wetting line measuring points on each section, and enabling the plurality of wetting line measuring points in each section to be distributed at intervals along the vertical direction.
3. The method for measuring the safety factor of the tailings pond as claimed in claim 1, wherein the surface characteristic data comprises a downstream escape point monitoring value;
setting the monitoring values of the downstream escape points as the starting point of a three-dimensional model and the starting point of a saturation line;
and when the fitted wetting line distribution function is corrected, the monitoring value of the downstream escape point is brought into the wetting line distribution function for correction.
4. The method for measuring the safety factor of the tailings pond as claimed in claim 1, wherein the step of dividing the tailings pond into a plurality of generalized subareas according to the diameter of the tailings grains of the tailings pond comprises:
the method comprises the following steps of dividing tailing particles of a tailing pond into medium tailing sand, fine tailing sand, silt tailing soil and clay tailing, wherein the average particle size of the medium tailing sand is larger than 0.35mm, the average particle size of the fine tailing sand is larger than 0.2mm and smaller than or equal to 0.35mm, the average particle size of the silt tailing sand is larger than 0.74mm and smaller than or equal to 0.2mm, the average particle size of the silt tailing soil is larger than 0.05mm and smaller than or equal to 0.74mm, and the average particle size of the clay tailing is smaller than or equal to 0.05 mm.
5. The method for measuring the safety factor of the tailings pond according to claim 1, wherein the step of dividing the tailings pond into a plurality of generalized zones according to the diameter of the tailings particles in the tailings pond further comprises the steps of:
surveying boundary points B of the tailing particles with different diameters measured by drilling holes in the middle period;
fitting a plurality of boundary points B of the tailing particles to obtain a function of the generalized subarea boundary;
obtaining a boundary point A by calculating the intersection point of the generalized division boundary and the initial dam;
and calculating the intersection point of the generalized division boundary and the surface of the tailing dam to obtain a boundary point C.
6. The tailings pond safety factor measuring method of claim 1, wherein the surface characteristic data comprises geometric fixed data and geometric variable data:
the geometric fixed data comprise coordinates of a control point of the initial dam section and coordinates of a characteristic point of the foundation;
the geometric variation data comprise beach top elevation T, an accumulation dam outer slope W and a dry beach slope G;
and judging whether the tailing dam is safe or not according to the measured numerical values of the beach top elevation Ti, the accumulation dam external slope ratio Wi and the dry beach slope ratio Gi.
7. The tailings pond safety factor measuring method of claim 1, wherein the gravity is high
The dry weight is above the saturation line and the saturation weight is below the saturation line, the function is described as:
in the formula (I), the compound is shown in the specification,
for the depth of the intersection of the line in each bar with the wetting line,
the dry weight of the tailings is the dry weight,
in order to be of a saturation severity,
the x coordinate to the right of the bar n,
the x-coordinate on the left side of the bar n,
is the bar height.
8. A tailing pond measuring device, which is characterized by being operated in real time based on the tailing pond safety factor measuring method as claimed in any one of claims 1 to 7.
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Citations (6)
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