CN111189437B - Strip mine side slope deformation detection device and method - Google Patents
Strip mine side slope deformation detection device and method Download PDFInfo
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- CN111189437B CN111189437B CN202010032554.5A CN202010032554A CN111189437B CN 111189437 B CN111189437 B CN 111189437B CN 202010032554 A CN202010032554 A CN 202010032554A CN 111189437 B CN111189437 B CN 111189437B
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
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Abstract
The invention discloses a slope deformation detection device and method for an open-pit mine area, the device comprises a calibration unit, a guide unit and an industrial personal computer, the calibration unit is respectively arranged on a stable foundation at the periphery of a detected slope in pairs along the horizontal transverse direction and the horizontal longitudinal direction, a plurality of guide units are arranged between the calibration units arranged in pairs, a measurement rope passes through a square frame of the guide unit to connect the calibration upright columns in pairs together, the measurement rope is utilized to transmit the displacement change of measurement points, the calibration units at different positions are connected into a measurement net through a limit guide unit, a small number of pull rope displacement sensors at the periphery of the measurement net are adopted to complete the displacement detection of a plurality of internal measurement points, the integral state that a plurality of horizontal layers of the detected slope face forwards and a plurality of vertical sections downwards is projected, the dangerous area of slope deformation can be positioned, the number of the displacement sensors is greatly reduced, the structure is novel, the laying is convenient, the economy is good, and the practicability is high.
Description
Technical Field
The invention relates to the field of geotechnical engineering of strip mining areas, in particular to a device and a method for detecting slope deformation of a strip mining area.
Background
The slope deformation as one of the three global natural disasters can cause unstable damage of rock masses to cause landslide, so that the produced mountain collapse and the debris flow formed by confluent heavy rain seriously threaten the life and property safety of people and cause huge economic loss. Strip mining requires stripping of the overburden and surrounding rock covering the upper portion of the ore body and its surroundings, and direct mining of the ore from the exposed ore body. Mining needs to excavate massively or the ground layer, has destroyed the original stability of mining area rock stratum, and mining area often adopts the blasting operation in-process, and the vibrations that the blasting produced transmit on the side slope of strip mine, further influences the stability of mining area rock stratum, therefore strip mine area side slope unstability risk is big. Whether the slope of the mining area is stable or not is directly related to whether the production operation of the mining area is safe or not, so that the slope deformation condition of the strip mine needs to be detected in time.
The slope deformation detection mainly detects absolute displacement or relative displacement of a landslide body, and the core of the slope deformation detection lies in obtaining the displacement of a point or a surface on a slope, and at present, the slope deformation detection mainly has the following modes: firstly, a geodetic method is used for directly arranging sensors on a side slope in a certain density to detect displacement transformation of measuring points, the difference lies in that the detection principle is different, for example, patent No. ZL200910063638.9 uses stainless steel chord to set up a test connecting line, a pulley block and a traction counterweight are matched to detect the displacement of each target point, patent No. ZL201510067639.6 forms a measuring network through a resistance conversion device and a measuring wire, the deformation condition of the side slope in the network is monitored by measuring the total resistance change of the measuring line, patent No. CN201510288624 uses a distributed embedded optical fiber sensor to monitor the deformation of the side slope, patent No. ZL201610271980.8 uses a magnetic sensing element arranged on the side slope to measure the deformation of the side slope in different stages through a full tensor magnetic gradiometer, patent No. ZL201620716472.1 obtains the displacement deformation between a fixed pile and a monitoring pile through an attitude sensor, and patent No. CN201710693907.4 measures the deformation rate, position and attitude information of the side slope based on an inertial measurement unit, the method comprises the following steps that deformation of a rock slope is monitored based on microseismic apparent stress change, inclination change of the slope is recognized by using distance change of a heavy hammer relative to a conducting ring in patent No. ZL201710794105.2, and distance change between two distance meters is recognized by converting length change of a pulling rope into a rotating angle of a guide rod in patent No. CN 3652; secondly, a GNSS (global navigation satellite system) measurement method includes GPS, beidou, and the like, and a GNSS receiver is arranged at a density of one point on a side slope to detect a three-dimensional coordinate of each measurement point, such as a side slope deformation monitoring system based on the beidou measurement technology of patent No. CN 201811350950.1; thirdly, a laser measuring method, which records the three-dimensional coordinates of the surface points of the object to be measured by using the laser ranging principle, such as a laser total station, a slope deformation real-time monitoring device based on the laser ranging principle of patent No. CN 201910989387.0; fourthly, the remote sensing measurement method comprises synthetic aperture radar interferometry (InSAR), synthetic aperture radar differential interferometry (D-InSAR), permanent scatterer synthetic aperture radar interferometry (PS-InSAR) and the like, the phase difference of two SAR images in the same area is obtained to obtain an interference image, and then the path difference is obtained according to the phase value of the interference image, so that the slope morphology change is calculated. The method for detecting the slope deformation is more, various methods have advantages and disadvantages, and a monitoring method with appropriate precision, economy and reasonability needs to be selected according to the specific situation of the slope.
The particularity of the side slope in the strip mine area determines that the deformation of the side slope is difficult to effectively detect by adopting the traditional method, and is mainly reflected in that: firstly, in the process of strip mine mining, rock and soil layers and ores need to be mined and discharged continuously, new side slopes are determined to be formed continuously, side slope detection needs to have the characteristics of low cost, easiness in installation, easiness in transition detection and the like, the traditional geodetic measurement method is mainly based on point measurement, the number of measuring points is equal to the number of sensors, and when large-area side slopes are detected, the number of sensors needs to be large, and the cost is high; secondly, the open-pit mining area has complex terrain, particularly a deep pit mining area, the depth reaches hundreds of meters, factors such as mountain shielding and the like are added, the GNSS signal is weak, the detection precision is low, and the omission is easy to detect, and meanwhile, the GNSS is accurate to longitude and latitude, but lacks precision to elevation information, so that the GNSS measurement method cannot meet the detection requirement; thirdly, the environment of the open-pit mine area is severe, the laser measurement method is greatly influenced by dust and air temperature and humidity, and the prism laser alignment technology is adopted, so that the centering workload is large, and the transition measurement is inconvenient; and fourthly, the observation precision of the remote sensing measurement method is lower than that of the GNSS, the space resolution is better than that of the GNSS, and the remote sensing measurement method is suitable for large-area slope deformation detection, but no matter space-based remote sensing, space-based remote sensing and foundation remote sensing, if high-precision slope detection is realized, the hardware investment is higher, and the economy is insufficient. Therefore, there is a need to develop a slope stability detecting device for an open-pit mine, which comprehensively considers the reliability, the practicability and the economy, so as to quickly and accurately detect the slope deformation.
Disclosure of Invention
The technical problem is as follows: the invention aims to overcome the defects in the prior art and provides the device and the method for detecting the slope deformation of the strip mine area, which have the advantages of simple structure, convenience in operation, rapidness, accuracy and high reliability.
The technical scheme is as follows: the invention relates to a slope deformation detection device of an open-pit mine area, which comprises calibration units, guide units and an industrial personal computer, wherein the calibration units are respectively arranged on peripheral stable foundations of a detected slope in pairs along the horizontal transverse direction and the horizontal longitudinal direction, a plurality of guide units are arranged between the calibration units which are arranged in pairs,
the calibration unit comprises a plurality of calibration spiral conical rods, calibration screws, calibration stand columns, stay cord displacement sensors, inertial positioning modules and measurement ropes, the calibration spiral conical rods, the calibration stand columns and the inertial positioning modules are coaxially arranged from bottom to top, the calibration screws are arranged at the tops of the calibration spiral conical rods along the circumferential direction, the calibration stand columns are arranged in pairs, the stay cord displacement sensors are arranged on one calibration stand column which is arranged in pairs, the detection end of each stay cord displacement sensor is connected with one end of each measurement rope, the other end of each measurement rope is fixed on the other adjacent calibration stand column, the measurement ropes are respectively arranged in the horizontal transverse direction and the horizontal longitudinal direction, and the measurement ropes penetrate through a square-shaped frame of the guide unit to connect the paired calibration stand columns together; the inertial positioning module and the pull rope displacement sensor are connected to an industrial personal computer positioned at the bottom of the side slope;
the guide unit comprises a guide upright post, a sleeve, carrier rollers, a U-shaped frame and guide screws) and a guide spiral taper rod, the guide upright post and the sleeve are coaxially arranged from bottom to top, the guide screws are arranged at the top of the guide spiral taper rod along the circumferential direction, the sleeve and the U-shaped frame form a square-shaped frame, the carrier rollers are arranged on each side of the square-shaped frame, the carrier rollers rotate without interfering with each other, and the measuring rope can freely slide when passing through a square-shaped space defined by the carrier rollers.
A detection method using the strip mine slope deformation detection device comprises the following steps:
(a) forming a square frame by the sleeve and the U-shaped frame, mounting carrier rollers on each side of the square frame, coaxially mounting the guide spiral taper rod, the guide upright post and the sleeve from bottom to top to assemble a plurality of guide units, and coaxially mounting the calibration spiral taper rod, the calibration upright post and the inertial positioning module from bottom to top to assemble a plurality of calibration units;
(b) fixing the calibration units by a calibration spiral taper rod through a calibration screw, fixing the guide units among paired calibration units by guide spiral taper rods through the guide screws, fixing two sleeves of the guide units respectively, enabling the opening directions of square frames of the guide units to face the horizontal transverse direction and the horizontal longitudinal direction respectively, installing a stay cord displacement sensor on one calibration stand column which is arranged in pairs, connecting the detection end of the stay cord displacement sensor with one end of a measurement rope, sequentially penetrating the square frames of the guide units by the other end of the measurement rope, and finally tightening and fixing the other adjacent calibration stand column, wherein an inertial positioning module and the stay cord displacement sensor are connected to an industrial personal computer positioned at the bottom of a side slope;
(c) the method comprises the following steps of carrying out zero calibration on an inertial positioning module on the periphery of a side slope and a pull rope displacement sensor in a manual measurement mode, starting parameter detection of the sensors, obtaining displacement of the inertial positioning module on the periphery of the side slope along X, Y, Z three directions and stretching amount of the pull rope displacement sensor, and carrying out statistics according to the following formula:
in the formula: (Hxi, Hyi, Hzi) (i ═ 1,2,3,4,5,6) shows displacement of each inertial positioning module in the horizontal direction along three directions X, Y, Z, (Vxi, Vyi, Vzi) (i ═ 1,2,3,4,5,6) shows displacement of each inertial positioning module in the vertical direction along three directions X, Y, Z;
mining and blasting in open pit mine in consideration of calibration unitThe displacement possibly generated during the breaking is calculated, and the displacement variation quantity { D of a plurality of measuring ropes arranged horizontally along the horizontal direction is calculatedH1,DH2,DH3And displacement variation quantity { D) of a plurality of vertically arranged measuring ropes along vertical downward directionV1,DV2,DV3The method concretely comprises the following steps:
in the formula: l isHj(j ═ 1,2,3) represents the amount of expansion and contraction of the measuring cord detected by the horizontal cord displacement sensor, Lvk(k ═ 1,2,3) represents the amount of measurement cord stretch detected by the cord displacement sensor in the vertical direction;
therefore, the deformation condition of the side slope in the same direction of the measuring rope is detected, the integral states of a plurality of horizontal layers of the side slope forwards and a plurality of vertical tangent planes downwards are detected in a protruding mode, and simultaneously { D (dimension) is usedH1,DH2,DH3,DV1,DV2,DV3Constructing an evaluation matrix of the deformation of the side slope at each guide unit, which is as follows:
in the formula: description of the symbols (DH)i,DHj) (i ═ 1,2,3) (j ═ 1,2,3) represents the overall amount of deformation horizontally forward and vertically downward at the location of a certain guide unit;
therefore, the displacement of the internal measuring point is detected, and the dangerous area of slope deformation is positioned by comparing the threshold value.
Has the advantages that: by adopting the technical scheme, aiming at the horizontal forward and vertical downward form changes mainly generated by slope instability, the device utilizes the measuring rope to transmit the displacement change of the measuring points, the calibration units at different positions are connected into the measuring net through the guide unit, a small number of stay cord displacement sensors are arranged on the stable foundation at the periphery of the slope to complete the displacement detection of a plurality of measuring points in the slope, the slope deformation condition of the slope in the same direction of the measuring rope can be detected, the integral states of a plurality of horizontal layers of the slope forward and a plurality of vertical tangent planes downward can be convexly detected, the dangerous area of slope deformation can be positioned, the number of the sensors is greatly reduced, the economy is good, and the practicability is high; the guide unit is provided with an upright post, a plurality of sleeves and matched U-shaped frames and carrier rollers can be installed, the displacement change in multiple directions can be flexibly detected, and the dangerous direction of slope deformation can be subjected to targeted detection; the guide unit is provided with a square carrier roller, so that the measuring rope can freely slide along a plurality of directions, and the position change of the guide unit is reliably transmitted to the calibration unit through the measuring rope; the inertial positioning is combined with the pull rope displacement sensor, the GNSS signal acquisition is not relied on, the influence of dust and air temperature and humidity is avoided, and the reliability is high; novel structure lays the convenience, and the transition of being convenient for detects, has extensive using value in this technical field.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention.
Fig. 2 is a schematic structural view of the guide unit of the device of the present invention.
Fig. 3 is a schematic view of the installation of the device of the present invention.
Fig. 4 is a schematic diagram of the slope detection principle of the device of the present invention.
In the figure: the device comprises a calibration unit 1, a calibration spiral taper rod 1-a, a calibration screw 1-b, a calibration upright post 1-c, a pull rope displacement sensor 1-d, an inertial positioning module 1-e, a measuring rope 1-f, a guide unit 2-a, a guide upright post 2-b, a sleeve 2-c, a carrier roller 2-d, a U-shaped frame 2-e, a guide screw 2-f, a guide spiral taper rod 3-a slope and an industrial personal computer 4.
Detailed Description
An embodiment of the invention is further described below with reference to the accompanying drawings:
the invention relates to a slope deformation detection device for an open-pit mine area, which mainly comprises a calibration unit (1), guide units (2) and an industrial personal computer (4), wherein the calibration unit (1) is respectively arranged on a stable foundation at the periphery of a detected slope (3) in pairs along the horizontal transverse direction and the horizontal longitudinal direction, a plurality of guide units (2) are arranged between the calibration units (1) which are arranged in pairs,
the calibration unit (1) comprises a plurality of calibration spiral conical rods (1-a), calibration screws (1-b), calibration upright columns (1-c), pull rope displacement sensors (1-d), an inertial positioning module (1-e) and measurement ropes (1-f), the calibration spiral conical rods (1-a), the calibration upright columns (1-c) and the inertial positioning module (1-e) are coaxially arranged from bottom to top, the calibration screws (1-b) are arranged at the tops of the calibration spiral conical rods (1-a) along the circumferential direction, the calibration upright columns (1-c) are arranged in pairs, the pull rope displacement sensors (1-d) are arranged on one calibration upright column (1-c) which is arranged in pairs, and the detection ends of the pull rope displacement sensors (1-d) are connected with one end of the measurement ropes (1-f), the other end of the measuring rope (1-f) is fixed on the other adjacent calibration upright post (1-c), the measuring rope (1-f) is respectively arranged along the horizontal transverse direction and the horizontal longitudinal direction, and the measuring rope (1-f) penetrates through the square-shaped frame of the guide unit (2) to connect the paired calibration upright posts (1-c) together; the inertial positioning module (1-e) and the pull rope displacement sensor (1-d) are connected to an industrial personal computer (4) positioned at the bottom of the side slope (3);
the guide unit (2) comprises a guide upright post (2-a), a sleeve (2-b), a carrier roller (2-c), a U-shaped frame (2-d), a guide screw (2-e) and a guide spiral taper rod (2-f), the guide spiral taper rod (2-f), the guide upright post (2-a) and the sleeve (2-b) are coaxially arranged from bottom to top, the top of the guiding spiral taper rod (2-f) is provided with a guiding screw (2-e) along the circumferential direction, the sleeve (2-b) and the U-shaped frame (2-d) form a square frame, supporting rollers (2-c) are arranged on each side of the square-shaped frame, the rotation of the supporting rollers (2-c) is not interfered with each other, so that the measuring rope (1-f) can freely slide when passing through a square-shaped space defined by the supporting rollers (2-c).
The invention discloses a method for detecting the deformation of a side slope in an open-pit mining area, which comprises the following specific steps of:
(a) forming a square frame by the sleeve (2-b) and the U-shaped frame (2-d), installing a carrier roller (2-c) on each side of the square frame, coaxially installing the guide spiral taper rod (2-f), the guide upright post (2-a) and the sleeve (2-b) from bottom to top to assemble a plurality of guide units (2), and coaxially installing the calibration spiral taper rod (1-a), the calibration upright post (1-c) and the inertial positioning module (1-e) from bottom to top to assemble a plurality of calibration units (1);
(b) calibration units (1) are respectively installed on a stable foundation at the periphery of a measured side slope (3) in pairs along the horizontal transverse direction and the horizontal longitudinal direction through a calibration spiral conical rod (1-a), and are fixed through calibration screws (1-b), a plurality of guide units (2) are installed between the paired calibration units (1) through guide spiral conical rods (2-f), and are fixed through guide screws (2-e), two sleeves (2-b) of the guide units (2) are respectively fixed, so that the opening directions of square frames of the guide units (2) respectively face the horizontal transverse direction and the horizontal longitudinal direction, a stay rope displacement sensor (1-d) is installed on one calibration upright post (1-c) arranged in pairs, and the detection end of the stay rope displacement sensor (1-d) is connected with one end of a measurement rope (1-f), the other end of the measuring rope (1-f) sequentially penetrates through the square-shaped frame of the guide unit (2) and is finally fastened and fixed on the other adjacent calibration upright post (1-c), and the inertial positioning module (1-e) and the pull rope displacement sensor (1-d) are connected to an industrial personal computer (4) positioned at the bottom of the side slope (3);
(c) the method comprises the following steps of carrying out zero point calibration on inertial positioning modules (1-e) and pull rope displacement sensors (1-d) on the periphery of a side slope (3) in a manual measurement mode, starting parameter detection of the sensors, obtaining displacement of the inertial positioning modules (1-e) on the periphery of the side slope (3) along X, Y, Z three directions and stretching amount of the pull rope displacement sensors (1-d), and counting the following formulas:
in the formula: (Hxi, Hyi, Hzi) (i ═ 1,2,3,4,5,6) shows the displacement of each inertial positioning module (1-e) in the horizontal direction along three directions X, Y, Z, (Vxi, Vyi, Vzi) (i ═ 1,2,3,4,5,6) shows the displacement of each inertial positioning module (1-e) in the vertical direction along three directions X, Y, Z;
considering the possible movement of the calibration unit (1) in the mining and blasting of the strip mine, the displacement variation { D of a plurality of measuring ropes (1-f) arranged horizontally along the horizontal direction is calculatedH1,DH2,DH3And displacement variation quantity { D) of a plurality of vertically arranged measuring ropes (1-f) along vertical directionV1,DV2,DV3The method concretely comprises the following steps:
in the formula: l isHj(j-1, 2,3) represents the amount of expansion and contraction of the measuring rope (1-f) detected by the rope displacement sensor (1-d) in the horizontal direction, Lvk(k ═ 1,2,3) represents the amount of expansion and contraction of the measuring rope (1-f) detected by the rope displacement sensor (1-d) in the vertical direction;
thereby detecting the slope deformation condition of the slope (3) in the same direction of the measuring rope (1-f), convexly detecting the integral state of the slope (3) with a plurality of horizontal layers facing forwards and a plurality of vertical tangent planes facing downwards, and simultaneously using the { D }H1,DH2,DH3,DV1,DV2,DV3Constructing an evaluation matrix of the deformation of the side slope (3) at each guide unit (2), which is as follows:
in the formula: description of the symbols (DH)i,DHj) (i ═ 1,2,3) (j ═ 1,2,3) denotes the overall amount of deformation horizontally forward and vertically downward at the location of a certain guide unit (2);
therefore, the displacement of the internal measuring point is detected, and the danger area of the deformation of the slope (3) is positioned by comparing the size of the threshold value.
Claims (2)
1. The utility model provides a strip mine district side slope deformation detection device which characterized in that: comprises a calibration unit (1), guide units (2) and an industrial personal computer (4), wherein the calibration unit (1) is respectively arranged on a peripheral stable foundation of a tested side slope (3) in pairs along the horizontal transverse direction and the horizontal longitudinal direction, a plurality of guide units (2) are arranged between the calibration units (1) which are arranged in pairs,
the calibration unit (1) comprises a plurality of calibration spiral conical rods (1-a), calibration screws (1-b), calibration upright columns (1-c), pull rope displacement sensors (1-d), an inertial positioning module (1-e) and measurement ropes (1-f), the calibration spiral conical rods (1-a), the calibration upright columns (1-c) and the inertial positioning module (1-e) are coaxially arranged from bottom to top, the calibration screws (1-b) are arranged at the tops of the calibration spiral conical rods (1-a) along the circumferential direction, the calibration upright columns (1-c) are arranged in pairs, the pull rope displacement sensors (1-d) are arranged on one calibration upright column (1-c) which is arranged in pairs, and the detection ends of the pull rope displacement sensors (1-d) are connected with one end of the measurement ropes (1-f), the other end of the measuring rope (1-f) is fixed on the other adjacent calibration upright post (1-c), the measuring rope (1-f) is respectively arranged along the horizontal transverse direction and the horizontal longitudinal direction, and the measuring rope (1-f) penetrates through the square-shaped frame of the guide unit (2) to connect the paired calibration upright posts (1-c) together; the inertial positioning module (1-e) and the pull rope displacement sensor (1-d) are connected to an industrial personal computer (4) positioned at the bottom of the side slope (3);
the guide unit (2) comprises a guide upright post (2-a), a sleeve (2-b), a carrier roller (2-c), a U-shaped frame (2-d), a guide screw (2-e) and a guide spiral taper rod (2-f), the guide spiral taper rod (2-f), the guide upright post (2-a) and the sleeve (2-b) are coaxially arranged from bottom to top, the top of the guiding spiral taper rod (2-f) is provided with a guiding screw (2-e) along the circumferential direction, the sleeve (2-b) and the U-shaped frame (2-d) form a square frame, supporting rollers (2-c) are arranged on each side of the square-shaped frame, the rotation of the supporting rollers (2-c) is not interfered with each other, so that the measuring rope (1-f) can freely slide when passing through a square-shaped space defined by the supporting rollers (2-c).
2. A detection method using the strip mine area slope deformation detection apparatus of claim 1, characterized in that: aiming at the horizontal forward and vertical downward form changes mainly generated by slope instability, the displacement change of measuring points is transmitted by using a measuring rope, calibration units at different positions are connected into a measuring net through a guide unit, a small number of stay cord displacement sensors are arranged on a stable foundation at the periphery of a slope to complete the displacement detection of a plurality of measuring points inside the slope, the slope deformation condition of the slope in the same direction of the measuring rope can be detected, the integral state that a plurality of horizontal layers of the slope face forwards and a plurality of vertical tangent planes downwards is detected in a protruding mode, and the dangerous area of slope deformation can be positioned, the method specifically comprises the following steps:
(a) forming a square frame by the sleeve (2-b) and the U-shaped frame (2-d), installing a carrier roller (2-c) on each side of the square frame, coaxially installing the guide spiral taper rod (2-f), the guide upright post (2-a) and the sleeve (2-b) from bottom to top to assemble a plurality of guide units (2), and coaxially installing the calibration spiral taper rod (1-a), the calibration upright post (1-c) and the inertial positioning module (1-e) from bottom to top to assemble a plurality of calibration units (1);
(b) calibration units (1) are respectively installed on a stable foundation at the periphery of a measured side slope (3) in pairs along the horizontal transverse direction and the horizontal longitudinal direction through a calibration spiral conical rod (1-a), and are fixed through calibration screws (1-b), a plurality of guide units (2) are installed between the paired calibration units (1) through guide spiral conical rods (2-f), and are fixed through guide screws (2-e), two sleeves (2-b) of the guide units (2) are respectively fixed, so that the opening directions of square frames of the guide units (2) respectively face the horizontal transverse direction and the horizontal longitudinal direction, a stay rope displacement sensor (1-d) is installed on one calibration upright post (1-c) arranged in pairs, and the detection end of the stay rope displacement sensor (1-d) is connected with one end of a measurement rope (1-f), the other end of the measuring rope (1-f) sequentially penetrates through the square-shaped frame of the guide unit (2) and is finally fastened and fixed on the other adjacent calibration upright post (1-c), and the inertial positioning module (1-e) and the pull rope displacement sensor (1-d) are connected to an industrial personal computer (4) positioned at the bottom of the side slope (3);
(c) the method comprises the following steps of carrying out zero point calibration on inertial positioning modules (1-e) and pull rope displacement sensors (1-d) on the periphery of a side slope (3) in a manual measurement mode, starting parameter detection of the sensors, obtaining displacement of the inertial positioning modules (1-e) on the periphery of the side slope (3) along X, Y, Z three directions and stretching amount of the pull rope displacement sensors (1-d), and counting the following formulas:
in the formula: (Hxi, Hyi, Hzi) (i ═ 1,2,3,4,5,6) shows the displacement of each inertial positioning module (1-e) in the horizontal direction along three directions X, Y, Z, (Vxi, Vyi, Vzi) (i ═ 1,2,3,4,5,6) shows the displacement of each inertial positioning module (1-e) in the vertical direction along three directions X, Y, Z;
calculating the horizontal distribution by taking into account the possible movement of the calibration unit (1) during the mining and blasting of the strip mineDisplacement variation { D) of a plurality of measuring ropes (1-f) arranged along horizontal forward directionH1,DH2,DH3And displacement variation quantity { D) of a plurality of vertically arranged measuring ropes (1-f) along vertical directionV1,DV2,DV3The method concretely comprises the following steps:
in the formula: l isHj(j-1, 2,3) represents the amount of expansion and contraction of the measuring rope (1-f) detected by the rope displacement sensor (1-d) in the horizontal direction, Lvk(k ═ 1,2,3) represents the amount of expansion and contraction of the measuring rope (1-f) detected by the rope displacement sensor (1-d) in the vertical direction;
therefore, the slope deformation condition of the slope (3) in the same direction of the measuring ropes (1-f) is detected, the integral states of a plurality of horizontal layers of the slope (3) in a forward direction and a plurality of vertical tangent planes in a downward direction are convexly detected, and meanwhile, the displacement variation { D } of the plurality of horizontally arranged measuring ropes (1-f) in the forward direction along the horizontal directionH1,DH2,DH3And displacement variation quantity { D) of a plurality of vertically arranged measuring ropes (1-f) along vertical downward directionV1,DV2,DV3Constructing an evaluation matrix of the deformation of the side slope (3) at each guide unit (2), which is as follows:
in the formula: description of the symbols (D)Hi,DVj) (i ═ 1,2,3) (j ═ 1,2,3) denotes the overall amount of deformation horizontally forward and vertically downward at the location of a certain guide unit (2);
therefore, the displacement of the internal measuring point is detected, and the danger area of the deformation of the slope (3) is positioned by comparing the size of the threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032554.5A CN111189437B (en) | 2020-01-13 | 2020-01-13 | Strip mine side slope deformation detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032554.5A CN111189437B (en) | 2020-01-13 | 2020-01-13 | Strip mine side slope deformation detection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111189437A CN111189437A (en) | 2020-05-22 |
| CN111189437B true CN111189437B (en) | 2022-02-18 |
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| CN111815882B (en) * | 2020-07-21 | 2021-08-20 | 国网河南淅川县供电公司 | Alarm for outdoor power supply operation |
| CN112832268B (en) * | 2021-01-11 | 2022-10-04 | 重庆交通大学 | Slope greening system |
| CN113063359B (en) * | 2021-03-31 | 2023-03-28 | 中煤科工集团重庆研究院有限公司 | Micro displacement identification method |
| CN113465523B (en) * | 2021-05-14 | 2022-03-15 | 中国地质大学（武汉） | Landslide underwater net type three-dimensional deformation monitoring system and method |
| CN114234900A (en) * | 2021-11-29 | 2022-03-25 | 国网福建省电力有限公司泉州供电公司 | Mountain transformer substation slope deformation automatic monitoring system and arrangement method thereof |
| CN114414770A (en) * | 2022-01-13 | 2022-04-29 | 济南市市政工程设计研究院（集团）有限责任公司 | Intelligent monitoring and alarming device and method for monitoring instability of roadbed slope |
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