CN109115168B - Device and method for monitoring and analyzing large deformation of stack landslide - Google Patents
Device and method for monitoring and analyzing large deformation of stack landslide Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The invention discloses a stack landslide large-deformation flexible monitoring device and a monitoring and analyzing method, and belongs to the technical field of geotechnical mechanics. The stack body landslide large deformation flexible monitoring device is applied to a stack body landslide, the stack body landslide comprises a sliding bed (13) and a sliding body (12), a sliding surface (14) is formed on a contact surface between the sliding bed (13) and the sliding body (12), and the stack body landslide large deformation flexible monitoring device comprises a measuring tube (1), a fixed support (2), a support (5), a side stay (3), a first middle stay (6 a), a second middle stay (6 b), a third middle stay (6 c), a fourth middle stay (6 d), a first displacement sensor (4 a), a second displacement sensor (4 b), a third displacement sensor (4 c), a fourth displacement sensor (4 d) and a measuring ball (7). The monitoring and analyzing method is realized based on the monitoring device. By means of which the sliding direction of the landslide can be determined and large deformations above the meter level can be tracked.
Description
Technical Field
The invention relates to the technical field of geotechnical mechanics, in particular to a stack landslide large-deformation flexible monitoring device and a monitoring and analyzing method.
Background
The landslide deformation characteristic is important information for landslide control, and the drilling inclinometer is a monitoring instrument capable of testing the deep deformation monitoring and the depth of a landslide belt. However, due to the limitation of the measurement principle and the structure of the measurement system, the measurement range is limited, and when the sliding surface generates large displacement, the inclinometer cannot freely move in the inclinometer pipe, so that the inclinometer cannot acquire large landslide deformation. However, the landslide of the accumulation body often reaches meter-level deformation, and the inclinometer cannot handle the large deformation of the landslide. In recent years, students develop a rope-pulling type landslide monitoring device and a TDR monitoring system, so that deep large deformation of landslide can be measured; but neither can determine the direction of landslide movement. The sliding direction plays a vital role in analysis of landslide formation mechanism and decision of treatment scheme, so that research and development of a monitoring device and a monitoring method capable of determining the sliding direction and tracking deformation above the meter level have important significance.
Disclosure of Invention
In view of the above, the present invention provides a device and a method for monitoring and analyzing a large deformation of a stacked body landslide, by which a sliding direction can be determined and deformation of a landslide meter level or more can be tracked, so that the device is more practical.
In order to achieve the first object, the technical scheme of the stack landslide large deformation flexible monitoring device provided by the invention is as follows:
the invention provides a stack body landslide large deformation flexible monitoring device which is applied to a stack body, wherein the stack body comprises a sliding bed (13) and a sliding body (12), a sliding surface (14) is formed on the contact surface between the sliding bed (13) and the sliding body (12),
the stack landslide large-deformation flexible monitoring device comprises a measuring tube (1), a fixed support (2), a bracket (5), an edge stay wire (3), a first middle stay wire (6 a), a second middle stay wire (6 b), a third middle stay wire (6 c), a fourth middle stay wire (6 d), a first displacement sensor (4 a), a second displacement sensor (4 b), a third displacement sensor (4 c), a fourth displacement sensor (4 d) and a measuring ball (7),
the side stay wire (3) comprises a plurality of side stay wires which are respectively fixed at different depths, wherein at least 1 side stay wire (3) is fixed on the sliding bed (13),
the measuring tube (1) is arranged in a blind hole which penetrates through the sliding body (12) and is terminated at the sliding bed (13),
one end of the first middle stay wire (6 a) is fixedly connected to the bottom of the measuring tube (1), the other end of the first middle stay wire (6 a) is fixedly connected to the measuring ball (7),
The fixed support column (2) is fixedly arranged on the sliding body (12), the first displacement sensor (4 a) is arranged on the fixed support column (2), one end of the edge pull line (3) is fixedly connected with the edge of the measuring tube (1), the other end of the edge pull line (3) is fixedly connected with the first displacement sensor (4 a),
the bracket (5) is fixedly arranged on the sliding body (12), the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) are respectively arranged on the bracket (5),
one end of the second middle stay wire (6 b) is fixedly connected with the measuring ball (7), the other end of the second middle stay wire (6 b) is fixedly connected with the second displacement sensor (4 b),
one end of the third middle stay wire (6 c) is fixedly connected with the measuring ball (7), the other end of the third middle stay wire (6 c) is fixedly connected with the third displacement sensor (4 c),
one end of the fourth middle stay wire (6 d) is fixedly connected to the measuring ball (7), and the other end of the fourth middle stay wire (6 d) is fixedly connected to the fourth displacement sensor (4 d).
The stack landslide large-deformation flexible monitoring device provided by the invention can be further realized by adopting the following technical measures.
Preferably, the second displacement sensor (4 b), the third displacement sensor (4 c), and the fourth displacement sensor (4 d) are positioned in the same horizontal plane.
Preferably, the bracket (5) comprises a first upright (5 a), a second upright (5 b), a third upright (5 c), a first connecting rod (15 a), a second connecting rod (15 b) and a third connecting rod (15 c),
one end of the first connecting rod (15 a) is fixedly connected to the top end of the first upright post (5 a), the other end of the first connecting rod (15 a) is fixedly connected to the top end of the second upright post (5 b),
one end of the second connecting rod (15 b) is fixedly connected to the top end of the first upright post (5 a), the other end of the second connecting rod (15 b) is fixedly connected to the top end of the third upright post (5 c),
one end of the third connecting rod (15 c) is fixedly connected to the top end of the second upright post (5 b), the other end of the third connecting rod (15 c) is fixedly connected to the top end of the third upright post (5 c),
the second displacement sensor (4 b) is arranged at the top end of the first upright post (5 a), the third displacement sensor (4 c) is arranged at the top end of the third upright post (5 c), and the fourth displacement sensor (4 d) is arranged at the top end of the second upright post (5 b).
Preferably, the length of the first connecting rod (15 a), the length of the second connecting rod (15 b) and the length of the third connecting rod (15 c) are equal.
Preferably, the first middle stay wire (6 a) is arranged on the central axis of the measuring tube (1).
Preferably, the first middle stay wire (6 a), the second middle stay wire (6 b), the third middle stay wire (6 c) and the fourth middle stay wire (6 d) are made of indium steel wires, and the outer parts of the first middle stay wire (6 a), the second middle stay wire (6 b), the third middle stay wire (6 c) and the fourth middle stay wire (6 d) are sleeved with protective sleeves.
Preferably, the stack body landslide large deformation flexible monitoring device also comprises a data acquisition device (8) and a storage battery (10),
the data collector (8) is used for collecting the data of the first displacement sensor (4 a), the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d),
the storage battery (10) is used for supplying power to the data acquisition device (8).
Preferably, the stack landslide large-deformation flexible monitoring device further comprises a solar panel (11), wherein the solar panel (11) is used for providing electric energy for the storage battery (10).
Preferably, the stack landslide large deformation flexible monitoring device further comprises a first transmission line (16 a), a second transmission line (16 b), a third transmission line (16 c) and a fourth transmission line (16 d),
One end of the first transmission line (16 a) is fixedly connected with the first displacement sensor (4 a), the other end of the first transmission line (16 a) is fixedly connected with the data collector (8),
one end of the second transmission line (16 b) is fixedly connected with the second displacement sensor (4 b), the other end of the second transmission line (16 b) is fixedly connected with the data collector (8),
one end of the third transmission line (16 c) is fixedly connected to the third displacement sensor (4 c), and the other end of the third transmission line (16 c) is fixedly connected to the data collector (8).
Preferably, the stack landslide large deformation flexible monitoring device further comprises a transmitter (9),
the data collector (8) can transmit displacement data collected from the first displacement sensor (4 a), the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) to a data processor by using the transmitter (9).
Preferably, the processing method of the data processor includes the steps of: the sliding body (12) is used as a reference object to calculate and obtain the movement direction of the sliding bed (13) relative to the sliding body (12), and the movement direction of the sliding body (12) relative to the sliding bed (13) is obtained as the sliding direction of the sliding slope due to the fact that the movement is opposite, and the stack body sliding slope large deformation flexible monitoring and analyzing method comprises the following steps:
Defining the position coordinate of the ball (7) as P (X, Y, Z), and defining the position point of the second displacement sensor (4 b) as O 1 The position point of the third displacement sensor (4 c) is O 2 The position point of the fourth displacement sensor (4 d) is O 3 P and O 1 、O 2 、O 3 The distance between them is L, M, N, namely PO 1 ＝L、PO 2 ＝M、PO 3 N, the distance between the three rope outlets is a, i.e. O 1 O 2 ＝O 2 O 3 ＝O 1 O 3 =a, build a coordinate system, where O 1 The point is the origin, the X axis and the Y axis are in the horizontal plane, the Y axis is oriented in the north direction, the X axis is oriented in the east direction, the Z axis is oriented in the zenith direction, the geometrical method is used for determining the coordinate P (X, Y, Z) of the measuring ball (7), and the equation (1) is established as follows:
wherein Z has two solutions, in the effective working range of the device, the measuring ball 7 is not positioned above the bracket (5), so that only the negative solution is adopted, and the equation (2) can be obtained by solving the equation:
measuring and calculating the ball (7) and O respectively by using the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) 1 、O 2 、O 3 Is of the initial distance L 0 、M 0 、N 0 By the formula (2)Calculating to obtain the initial coordinate P (X) of the measuring ball (7) 0 、Y 0 、Z 0 ) By measuring the sliding body 12, the ball (7) and O at a certain moment 1 、O 2 、O 3 Distance L between s 、M s 、N s The coordinate P (X) s 、Y s 、Z s ) The displacement accumulated direction vector of the ball (7) under the established coordinate system is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The displacement direction of the ball (7) can also be obtained by adopting the same method in any time interval, the sliding body (12) and the bracket (5) fixed on the sliding body are taken as reference objects, and as the fixed point in the sliding bed (13) is connected with the ball (7) through the edge stay wire (3), the fixed point in the sliding bed (13) is consistent with the movement direction of the ball (7), and the movement direction vector of the sliding bed (13) relative to the sliding body (12) is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) According to the relativity of the movement, the sliding direction vector of the sliding body (12) is obtained as (X) 0 -Xs、Y 0 -Y s 、Z 0 -Z s )；
The landslide displacement can be known through the reading change condition of the displacement sensor;
the sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors.
In order to achieve the second purpose, the technical scheme of the stack landslide large deformation flexible monitoring and analyzing method provided by the invention is as follows:
according to the stack body landslide large deformation flexible monitoring and analyzing method of the stack body landslide large deformation flexible monitoring device provided by the invention, the sliding body (12) is used as a reference object to calculate the movement direction of the sliding bed (13) relative to the sliding body (12), and the movement direction of the sliding body (12) relative to the sliding bed (13) can be obtained as the landslide sliding direction due to the relative movement, and the stack body landslide large deformation flexible monitoring and analyzing method comprises the following steps:
Defining the position coordinate of the ball (7) as P (X, Y, Z), and defining the position point of the second displacement sensor (4 b) as O 1 The position point of the third displacement sensor (4 c) is O 2 The position point of the fourth displacement sensor (4 d) is O 3 P and O 1 、O 2 、O 3 The distance between them is L, M, N, namely PO 1 ＝L、PO 2 ＝M、PO 3 N, the distance between the three rope outlets is a, i.e. O 1 O 2 ＝O 2 O 3 ＝O 1 O 3 =a, build a coordinate system, where O 1 The point is the origin, the X axis and the Y axis are in the horizontal plane, the Y axis is oriented in the north direction, the X axis is oriented in the east direction, the Z axis is oriented in the zenith direction, the geometrical method is used for determining the coordinate P (X, Y, Z) of the measuring ball (7), and the equation (1) is established as follows:
wherein Z has two solutions, in the effective working range of the device, the measuring ball 7 is not positioned above the bracket (5), so that only the negative solution is adopted, and the equation (2) can be obtained by solving the equation:
measuring and calculating the ball (7) and O respectively by using the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) 1 、O 2 、O 3 Is of the initial distance L 0 、M 0 、N 0 The initial coordinate P (X) of the ball (7) can be calculated by the formula (2) 0 、Y 0 、Z 0 ) By measuring the sliding body 12, the ball (7) and O at a certain moment 1 、O 2 、O 3 Distance L between s 、M s 、N s Can calculate and obtain the time of the ball measurementThe coordinates of the engraving P (X s 、Y s 、Z s ) The displacement accumulated direction vector of the ball (7) under the established coordinate system is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The displacement direction of the ball (7) can also be obtained by adopting the same method in any time interval, the sliding body (12) and the bracket (5) fixed on the sliding body are taken as reference objects, and as the fixed point in the sliding bed (13) is connected with the ball (7) through the edge stay wire (3), the fixed point in the sliding bed (13) is consistent with the movement direction of the ball (7), and the movement direction vector of the sliding bed (13) relative to the sliding body (12) is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) According to the relativity of the movement, the sliding direction vector of the sliding body (12) is obtained as (X) 0 -Xs、Y 0 -Y s 、Z 0 -Z s )；
The landslide displacement can be known through the reading change condition of the displacement sensor;
the sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors.
By the adoption of the stack body landslide large-deformation flexible monitoring device and the monitoring and analyzing method, the sliding direction can be determined, deformation above the landslide meter level can be tracked, and the stack body landslide large-deformation flexible monitoring device and the monitoring and analyzing method have a vital effect on landslide formation mechanism analysis and treatment scheme decision. The landslide displacement can be known through the change condition of the readings of the displacement sensor, and the landslide displacement can be obtained through the readings of the displacement sensor connected with the pull rope even if the measuring tube is broken. The sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors with different depths because the reading change of the displacement sensors with the pull ropes above the sliding surface is smaller and the reading change of the displacement sensors with the pull ropes below the sliding surface is larger.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural diagram of a stack landslide large-deformation flexible monitoring device according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a stack landslide large-deformation flexible monitoring device according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a coordinate system applied to data processing in the stack landslide large deformation flexible monitoring device provided by the second embodiment of the invention and the stack landslide large deformation flexible monitoring and analyzing method provided by the third embodiment of the invention.
Detailed Description
The invention provides a stack landslide large deformation flexible monitoring device and a monitoring and analyzing method, which can determine the sliding direction and track the deformation above the landslide meter level, so that the device is more practical.
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following is a detailed description of specific implementation, structure, characteristics and effects of the stack landslide large deformation flexible monitoring device and the monitoring and analyzing method according to the invention in combination with the accompanying drawings and the preferred embodiment. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the described features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The term "and/or" is herein merely an association relation describing an associated object, meaning that three relations may exist, e.g. a and/or B, specifically understood as: the composition may contain both a and B, and may contain a alone or B alone, and any of the above three cases may be provided.
Example 1
Referring to fig. 1, the stack landslide large deformation flexible monitoring device provided by the invention is applied to a stack, wherein the stack comprises a sliding bed 13 and a sliding body 12, and a sliding surface 14 is formed at the contact surface between the sliding bed 13 and the sliding body 12. The stack landslide large deformation flexible monitoring device comprises a measuring tube 1, a fixed support column 2, a support 5, an edge stay wire 3, a first middle stay wire 6a, a second middle stay wire 6b, a third middle stay wire 6c, a fourth middle stay wire 6d, a first displacement sensor 4a, a second displacement sensor 4b, a third displacement sensor 4c, a fourth displacement sensor 4d and a measuring ball 7. The side stay wire 3 comprises a plurality of side stay wires which are respectively fixed at different depths, wherein at least 1 side stay wire 3 is fixed on the sliding bed 13, the measuring tube 1 is arranged in a blind hole, and the blind hole penetrates through the sliding body 12 and is terminated on the sliding bed 13. One end of the first middle stay wire 6a is fixedly connected to the bottom of the measuring tube 1, and the other end of the first middle stay wire 6a is fixedly connected to the measuring ball 7. The fixed support column 2 is fixedly arranged on the sliding body 12, the first displacement sensor 4a is arranged on the fixed support column 2, one end of the edge stay wire 3 is fixedly connected to the edge of the measuring tube 1, and the other end of the edge stay wire 3 is fixedly connected to the first displacement sensor 4a. The bracket 5 is fixedly arranged on the sliding body 12, and the second displacement sensor 4b, the third displacement sensor 4c and the fourth displacement sensor 4d are respectively arranged on the bracket 5. One end of the second middle stay wire 6b is fixedly connected to the measuring ball 7, and the other end of the second middle stay wire 6b is fixedly connected to the second displacement sensor 4b. One end of the third middle stay wire 6c is fixedly connected to the measuring ball 7, and the other end of the third middle stay wire 6c is fixedly connected to the third displacement sensor 4c. One end of the fourth middle stay wire 6d is fixedly connected to the measuring ball 7, and the other end of the fourth middle stay wire 6d is fixedly connected to the fourth displacement sensor 4d.
The flexible monitoring device for the large deformation of the landslide of the accumulation body can determine the sliding direction and track the deformation of the landslide above the meter level, and has a vital function on analysis of the landslide formation mechanism and decision of a treatment scheme. The landslide displacement can be known through the change condition of the readings of the displacement sensor, and the landslide displacement can be obtained through the readings of the displacement sensor connected with the pull rope even if the measuring tube is broken. The sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors with different depths because the reading change of the displacement sensors with the pull ropes above the sliding surface is smaller and the reading change of the displacement sensors with the pull ropes below the sliding surface is larger.
Wherein the second displacement sensor 4b, the third displacement sensor 4c and the fourth displacement sensor 4d are in the same horizontal plane. In this case, the calculation and analysis can be performed using the coordinate system shown in fig. 3, and the calculation and analysis process can be simplified, thereby more conveniently obtaining the analysis result.
The bracket 5 includes a first upright 5a, a second upright 5b, a third upright 5c, a first connecting rod 15a, a second connecting rod 15b, and a third connecting rod 15c. One end of the first connecting rod 15a is fixedly connected to the top end of the first upright 5a, and the other end of the first connecting rod 15a is fixedly connected to the top end of the second upright 5 b. One end of the second connecting rod 15b is fixedly connected to the top end of the first upright 5a, and the other end of the second connecting rod 15b is fixedly connected to the top end of the third upright 5c. One end of the third connecting rod 15c is fixedly connected to the top end of the second upright 5b, and the other end of the third connecting rod 15c is fixedly connected to the top end of the third upright 5c. The second displacement sensor 4b is disposed at the top end of the first upright 5a, the third displacement sensor 4c is disposed at the top end of the third upright 5c, and the fourth displacement sensor 4d is disposed at the top end of the second upright 5 b. In this case, the bracket 5 can avoid interference with each displacement sensor connection line.
The length of the first connecting rod 15a, the length of the second connecting rod 15b, and the length of the third connecting rod 15c are all equal. In this case, the mathematical modeling process is simpler when performing the mathematical calculations of the coordinate system shown in fig. 3.
Wherein, the first middle stay wire 6a is arranged on the central axis of the measuring tube 1. In this case, the mathematical modeling process is simpler when performing the mathematical calculations of the coordinate system shown in fig. 3.
Wherein, first middle part is acted as go-between 6a, second middle part is acted as go-between 6b, third middle part is acted as go-between 6c and fourth middle part and is acted as go-between 6d and is made by indium steel wire to, the outside that first middle part acted as go-between 6a, second middle part is acted as go-between 6b, third middle part is acted as go-between 6c and fourth middle part is acted as go-between 6d all the cover is equipped with the protective sheath. Under the condition, the abrasion of each middle pull wire can be reduced, and the service life of the stack landslide large-deformation flexible monitoring device provided by the embodiment of the invention is prolonged.
Example two
Referring to fig. 2, the stack landslide large deformation flexible monitoring device according to the second embodiment of the present invention is improved on the basis of the stack landslide large deformation flexible monitoring device according to the first embodiment of the present invention, and further includes a data collector 8 and a storage battery 10. The data collector 8 is used for collecting data of the first displacement sensor 4a, the second displacement sensor 4b, the third displacement sensor 4c and the fourth displacement sensor 4 d. The battery 10 is used to power the data collector 8. In this case, the power supply to the data collector 8 through the storage battery 10 can enable the stack landslide large-deformation flexible monitoring device provided by the second embodiment of the invention to be arranged at any time and any place without being limited by the position of the power supply.
The stack landslide large-deformation flexible monitoring device further comprises a solar panel 11, and the solar panel 11 is used for providing electric energy for the storage battery 10. In this case, the battery 10 can be supplied with electric power through the solar panel 11, and other forms of electric power can be saved, thereby reducing the monitoring cost.
The stack landslide large-deformation flexible monitoring device further comprises a first transmission line 16a, a second transmission line 16b, a third transmission line 16c and a fourth transmission line 16d. One end of the first transmission line 16a is fixedly connected to the first displacement sensor 4a, and the other end of the first transmission line 16a is fixedly connected to the data collector 8. One end of the second transmission line 16b is fixedly connected to the second displacement sensor 4b, and the other end of the second transmission line 16b is fixedly connected to the data collector 8. One end of the third transmission line 16c is fixedly connected to the third displacement sensor 4c, and the other end of the third transmission line 16c is fixedly connected to the data collector 8.
Wherein, the stack body landslide large deformation flexible monitoring device also comprises a transmitter 9. The data collector 8 can transmit the displacement data collected from the first displacement sensor 4a, the second displacement sensor 4b, the third displacement sensor 4c, and the fourth displacement sensor 4d to the data processor using the transmitter 9. Under the condition, each data can be received through the data processor arranged at the far end, and unattended operation can be realized, so that human resources are saved.
The processing method of the data processor comprises the following steps: the sliding body 12 is used as a reference object to calculate the moving direction of the sliding bed 13 relative to the sliding body 12, and the moving direction of the sliding body 12 relative to the sliding bed 13 can be obtained as the sliding direction of the sliding slope because the movement is relative, wherein the sliding body 12 can generate displacement or deformation after the sliding is started, the sliding body 12 and the sliding bed 13 generate relative movement, a plurality of stay wires fixed on the sliding bed 13 move to cause the reading change of a plurality of displacement sensors, and the reading of the displacement sensors can be obtained by combining an automatic acquisition and emission device, so that the depth of a sliding belt, the displacement of the sliding slope and the sliding direction can be analyzed through a data processor. The stack body landslide large deformation flexible monitoring and analyzing method comprises the following steps:
defining the position coordinate of the ball 7 as P (X, Y, Z) and the position point of the second displacement sensor 4b as O 1 The third displacement sensor 4c is located at the position point O 2 The fourth displacement sensor 4d is located at a position point O 3 P and O 1 、O 2 、O 3 The distance between them is L, M, N, namely PO 1 ＝L、PO 2 ＝M、PO 3 N, the distance between the three rope outlets is a, i.e. O 1 O 2 ＝O 2 O 3 ＝O 1 O 3 =a, establishing a coordinate system shown in fig. 3, wherein O 1 The point is the origin, the X axis and the Y axis are in the horizontal plane, the Y axis is oriented in the north direction, the X axis is oriented in the east direction, the Z axis is oriented in the zenith direction, the coordinate P (X, Y, Z) of the measuring ball 7 is determined by using a geometric method, and the equation (1) is established as follows:
wherein Z has two solutions, in the effective working range of the device, the measuring ball 7 is not positioned above the bracket 5, so that only the negative solution is adopted, and the equation (2) can be obtained by solving the equation:
measuring and calculating the ball 7 and O respectively by using the second displacement sensor 4b, the third displacement sensor 4c and the fourth displacement sensor 4d 1 、O 2 、O 3 Is of the initial distance L 0 、M 0 、N 0 The initial coordinates P (X) of the sphere 7 can be calculated by the formula (2) 0 、Y 0 、Z 0 ) The ball 7 and O are measured at a certain moment by measuring the sliding body 12 1 、O 2 、O 3 Distance L between s 、M s 、N s The coordinate P (X) s 、Y s 、Z s ) The cumulative direction vector of the displacement of the ball 7 under the established coordinate system is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The displacement direction of the ball 7 at any time interval can also be obtained by adopting the same method, taking the sliding body 12 and the bracket 5 fixed on the sliding body as reference objects, and since the fixed point in the sliding bed 13 is connected with the ball 7 through the side pull wire 3, the fixed point in the sliding bed 13 is consistent with the movement direction of the ball 7, and the movement direction vector of the sliding bed 13 relative to the sliding body 12 can be obtained as (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The sliding direction vector of the sliding body 12 can be obtained as (X 0 -Xs、Y 0 -Y s 、Z 0 -Z s ) The method comprises the steps of carrying out a first treatment on the surface of the The landslide displacement can be known through the reading change condition of the displacement sensor; the sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors. The mathematical modeling process is simple and convenient, and the obtained result is calculated and analyzedReliable.
Example III
According to the stack mass landslide large deformation flexible monitoring and analyzing method based on the stack mass landslide large deformation flexible monitoring device provided by the embodiment of the invention, the sliding mass 12 is used as a reference object to calculate the movement direction of the sliding mass 13 relative to the sliding mass 12, and the movement direction of the sliding mass 12 relative to the sliding mass 13 is obtained as the movement is opposite, namely the sliding mass sliding direction, wherein the sliding mass 12 generates displacement or deformation after the sliding mass is started, the sliding mass 12 and the sliding mass 13 generate relative movement, a plurality of stay wires fixed on the sliding mass 13 move to cause a plurality of displacement sensor reading changes, and the reading of the displacement sensor can be obtained by combining an automatic acquisition and emission device, so that the depth of a sliding belt, the displacement of the sliding mass and the sliding mass direction can be analyzed through a data processor. The stack body landslide large deformation flexible monitoring and analyzing method comprises the following steps:
Defining the position coordinate of the ball 7 as P (X, Y, Z) and the position point of the second displacement sensor 4b as O 1 The third displacement sensor 4c is located at the position point O 2 The fourth displacement sensor 4d is located at a position point O 3 P and O 1 、O 2 、O 3 The distance between them is L, M, N, namely PO 1 ＝L、PO 2 ＝M、PO 3 N, the distance between the three rope outlets is a, i.e. O 1 O 2 ＝O 2 O 3 ＝O 1 O 3 =a, establishing a coordinate system shown in fig. 3, wherein O 1 The point is the origin, the X axis and the Y axis are in the horizontal plane, the Y axis is oriented in the north direction, the X axis is oriented in the east direction, the Z axis is oriented in the zenith direction, the coordinate P (X, Y, Z) of the measuring ball 7 is determined by using a geometric method, and the equation (1) is established as follows:
wherein Z has two solutions, in the effective working range of the device, the measuring ball 7 is not positioned above the bracket 5, so that only the negative solution is adopted, and the equation (2) can be obtained by solving the equation:
measuring and calculating the ball 7 and O respectively by using the second displacement sensor 4b, the third displacement sensor 4c and the fourth displacement sensor 4d 1 、O 2 、O 3 Is of the initial distance L 0 、M 0 、N 0 The initial coordinates P (X) of the sphere 7 can be calculated by the formula (2) 0 、Y 0 、Z 0 ) The ball 7 and O are measured at a certain moment by measuring the sliding body 12 1 、O 2 、O 3 Distance L between s 、M s 、N s The coordinate P (X) s 、Y s 、Z s ) The cumulative direction vector of the displacement of the ball 7 under the established coordinate system is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The displacement direction of the ball 7 at any time interval can also be obtained by adopting the same method, taking the sliding body 12 and the bracket 5 fixed on the sliding body as reference objects, and since the fixed point in the sliding bed 13 is connected with the ball 7 through the side pull wire 3, the fixed point in the sliding bed 13 is consistent with the movement direction of the ball 7, and the movement direction vector of the sliding bed 13 relative to the sliding body 12 can be obtained as (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The sliding direction vector of the sliding body 12 can be obtained as (X 0 -Xs、Y 0 -Y s 、Z 0 -Z s ) The method comprises the steps of carrying out a first treatment on the surface of the The landslide displacement can be known through the reading change condition of the displacement sensor; the sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors.
Meanwhile, the landslide displacement can be known through the change condition of the readings of the displacement sensor, and the landslide displacement can be obtained through the readings of the displacement sensor connected with the pull rope even if the measuring tube is broken. The sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors with different depths because the reading change of the displacement sensors with the pull ropes above the sliding surface is smaller and the reading change of the displacement sensors with the pull ropes below the sliding surface is larger.
Example IV
The large deformation monitoring device provided by the fourth embodiment of the invention comprises a measuring tube 1, a fixed support column 2, at least one side stay wire 3 and a stay rope type displacement sensor 4 which is in one-to-one correspondence with the side stay wires, wherein the measuring tube 1 is buried underground and passes through a sliding surface 14, the length of the measuring tube in the embodiment is 30m, the diameter is 90mm, the measuring tube is made of PVC material, and the inclination angle between the measuring tube 1 and the horizontal plane is 30 degrees. The fixed support column 2 is fixed on the slope surface, a plurality of stay cord type displacement sensors 4 are installed on the fixed support column 2, and stay cord connectors are attached to the stay cord type displacement sensors 4. One end of the side pull wire 3 is fixed in the measuring tube 1, the other end is respectively connected with the pull rope type displacement sensors 4 one by one through the pull wire connector, the side pull wires 3 are fixed at different depths in the measuring tube 1, wherein the deepest side pull wire 3 is fixed at the sliding bed 13, five side pull wires 3 are arranged in the embodiment, and the five side pull wires 3 are respectively connected with the five pull rope type displacement sensors 4 on the fixed support column 2.
The azimuth monitoring device comprises a triangle sensor mounting plate frame 5, three stay rope type displacement sensors 4, a plurality of middle stay wires 6 and a measuring ball 7. The triangular sensor mounting plate frame 5 comprises a sensor mounting plate, a level base and a micro compass. The sensor mounting plate is provided with three stay cord outlets, the three stay cord outlets are arranged in an equilateral triangle, the miniature compass is fixed on the sensor mounting plate, and a connecting line of a 0-degree point and a 360-degree point on the miniature compass scale is parallel or coincident with one side of the equilateral triangle. The level base is fixed on the slope meter through the steel support, the sensor mounting plate is connected with the level base, the sensor mounting plate can be leveled through the level base, and the sensor mounting plate can rotate and be fixed in the horizontal plane. The three stay cord type displacement sensors 4 are fixed on the sensor mounting plate through bolts, stay cord connectors are arranged on the three stay cord type displacement sensors 4, and the three stay cord connectors are respectively arranged at three stay cord outlets. One end of each of the three middle stay wires 6-2 respectively passes through the three stay wire outlets to be respectively connected with the corresponding stay wire connectors, and the other ends of the three middle stay wires are fixed on the measuring ball 7. One end of the middle stay wire 6-1 is fixed on the sliding bed 13 through a measuring tube and is positioned on the central axis of the measuring tube 1, and the other end is fixed on the measuring ball 7. The ball 7 is preferably arranged on the central axis of the test tube 1 during the installation process. In this embodiment, the edge stay wire 3 and the middle stay wire 6 are made of indium steel wires, the diameters of the indium steel wires are 1mm, the indium steel wires are sleeved with protective sleeves, the tension of the outlet of the pull rope type displacement sensor 4 is preferably 2kg, the linear precision is preferably 0.01%, and the measuring range of the pull rope type displacement sensor 4 is 3m.
The automatic collecting and transmitting device comprises a collector 8, a transmitter 9, a storage battery 10 and a solar panel 11. The stay cord type displacement sensor 4 is connected to the collector 8 through wires respectively, the collector 8 is connected with the transmitter 9 through wires, and the transmitter 9 utilizes the existing mobile communication network to transmit signals to the data processing center. The stay cord type displacement sensor 4, the collector 8 and the emitter 9 are powered by a storage battery 10, and the storage battery 10 is connected with a solar panel 11 to store electric power generated by the solar panel 11.
The implementation of the present invention is illustrated with the monitoring of large deformations of a certain stacked landslide.
Step 1: geological drilling is carried out according to a designed inclination angle of 30 degrees, the hole depth is 30m, the drilling holes penetrate through the sliding surface 14 and penetrate into the sliding bed 13;
step 2: manufacturing a middle stay wire 6-1 with the length of 31m, fixing one end of the middle stay wire 6-1 to the bottom of the measuring tube 1 and on the central axis of the measuring tube 1, using a connector to extend the measuring tube 1 and gradually sink into a drilled hole, and fixing one ends of five side stay wires 3 to different depths of the measuring tube 1 respectively, wherein the deepest side stay wire 3 is fixed to the bottom of the measuring tube, and all the side stay wires 3 and the other ends of the middle stay wire 6 extend out of the ground surface;
step 3: fixing a fixed support column 2 on a slope surface, installing five stay rope type displacement sensors 4, and connecting one ends of the five side stay wires extending out of the ground surface with the stay rope type displacement sensors 4 on the fixed support column one by one through stay rope connectors;
Step 4: the manufactured triangular sensor mounting plate frame 5 is fixed on a slope meter through a steel support column, three stay rope type displacement sensors 4 are mounted, a leveling instrument base is used for leveling a sensor mounting plate, the mounting plate is rotated in a horizontal plane until a connecting line of a 0-degree point and a 360-degree point on a miniature compass scale points to the north direction, and the orientation of the mounting plate is fixed;
step 5: straightening the middle stay wire 6-1, placing the measuring ball 7 on the axis of the measuring tube 1, fixing one ends of three middle stay wires 6-2 with known lengths on the measuring ball 7, connecting the other ends with stay rope joints of three stay rope type displacement sensors 4, and measuring and calculating the distance between the measuring ball 7 and corresponding stay rope outlets;
step 6: installing and debugging an automatic acquisition and emission device, recording initial readings of a pull-rope type displacement sensor 4, and adjusting the readings of the pull-rope type displacement sensor 4 according to a certain time interval for data analysis during monitoring;
step 7: the distance between the ball 7 and the three stay rope outlets at any moment can be obtained through the readings of the three stay rope displacement sensors 4 on the triangle sensor mounting plate frame 5, a coordinate system is established, the coordinates of the ball 7 at any moment are calculated by taking the triangle sensor mounting plate frame 5 as a reference object, the displacement direction vector of the ball 7 under the established coordinate system can be obtained, and as the fixed point in the sliding bed 13 is consistent with the movement direction of the ball 7, the movement direction vector of the sliding bed 13 relative to the sliding body 12 can be obtained, and the sliding direction vector of the sliding slope can be obtained according to the relativity of movement.
Step 8: the sliding condition can be monitored by utilizing the reading change condition of the pull rope type displacement sensor 4 connected with the side pull wire 3, after the sliding occurs, the reading change of the pull rope type displacement sensor 4 connected with the side pull wire 3 fixed above the sliding surface 14 is small or does not change, and the reading change of the pull rope type displacement sensor 4 connected with the side pull wire 3 fixed below the sliding surface 14 is obvious, so that the position of the sliding surface can be judged, the deformation size and the deformation rate of the sliding can be analyzed, and a basis is provided for preventing and controlling the sliding.
Defining the position coordinate of the ball (7) as P (X, Y, Z), and the second displacement sensor (4 b) is positionedThe position point of (2) is O 1 The position point of the third displacement sensor (4 c) is O 2 The position point of the fourth displacement sensor is O 3 P and O 1 、O 2 、O 3 The distance between them is L, M, N, namely PO 1 ＝L、PO 2 ＝M、PO 3 N, the distance between the three rope outlets is a, i.e. O 1 O 2 ＝O 2 O 3 ＝O 1 O 3 =a, build a coordinate system, where O 1 The point is the origin, the X axis and the Y axis are in the horizontal plane, the Y axis is oriented in the north direction, the X axis is oriented in the east direction, the Z axis is oriented in the zenith direction, the geometrical method is used for determining the coordinate P (X, Y, Z) of the measuring ball (7), and the equation (1) is established as follows:
Wherein Z has two solutions, in the effective working range of the device, the measuring ball 7 is not positioned above the bracket (5), so that only the negative solution is adopted, and the equation (2) can be obtained by solving the equation:
measuring and calculating the ball (7) and O respectively by using the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) 1 、O 2 、O 3 Is of the initial distance L 0 、M 0 、N 0 The initial coordinate P (X) of the ball (7) can be calculated by the formula (2) 0 、Y 0 、Z 0 ) By measuring the sliding body 12, the ball (7) and O at a certain moment 1 、O 2 、O 3 Distance L between s 、M s 、N s The coordinate P (X) s 、Y s 、Z s ) The displacement accumulated direction vector of the ball (7) under the established coordinate system is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The displacement direction of the ball (7) can also be obtained by adopting the same method in any time interval, the sliding body (12) and the bracket (5) fixed on the sliding body are taken as reference objects, and as the fixed point in the sliding bed (13) is connected with the ball (7) through the edge stay wire (3), the fixed point in the sliding bed (13) is consistent with the movement direction of the ball (7), and the movement direction vector of the sliding bed (13) relative to the sliding body (12) is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) According to the relativity of the movement, the sliding direction vector of the sliding body (12) is obtained as (X) 0 -Xs、Y 0 -Y s 、Z 0 -Z s )。
In addition, through displacement sensor reading change condition, can know landslide displacement size, even the survey pipe is broken still can obtain landslide displacement size through the displacement sensor reading that the stay cord links. The sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors with different depths because the reading change of the displacement sensors with the pull ropes above the sliding surface is smaller and the reading change of the displacement sensors with the pull ropes below the sliding surface is larger.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. A stack landslide large deformation flexible monitoring device is characterized in that the stack landslide comprises a sliding bed (13) and a sliding body (12), a sliding surface (14) is formed on the contact surface between the sliding bed (13) and the sliding body (12),
the stack landslide large-deformation flexible monitoring device comprises a measuring tube (1), a fixed support (2), a bracket (5), an edge stay wire (3), a first middle stay wire (6 a), a second middle stay wire (6 b), a third middle stay wire (6 c), a fourth middle stay wire (6 d), a plurality of first displacement sensors (4 a), second displacement sensors (4 b), third displacement sensors (4 c), fourth displacement sensors (4 d) and a measuring ball (7),
the side stay wire (3) comprises a plurality of side stay wires which are respectively fixed at different depths, wherein at least 1 side stay wire (3) is fixed on the sliding bed (13),
the measuring tube (1) is arranged in a blind hole which penetrates through the sliding body (12) and is terminated at the sliding bed (13),
one end of the first middle stay wire (6 a) is fixedly connected to the bottom of the measuring tube (1), the other end of the first middle stay wire (6 a) is fixedly connected to the measuring ball (7),
the fixed support column (2) is fixedly arranged on the sliding body (12), the first displacement sensor (4 a) is arranged on the fixed support column (2), one end of the edge pull line (3) is fixedly connected with the edge of the measuring tube (1), the other end of the edge pull line (3) is fixedly connected with the first displacement sensor (4 a),
The bracket (5) is fixedly arranged on the sliding body (12), the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) are respectively arranged on the bracket (5),
one end of the second middle stay wire (6 b) is fixedly connected with the measuring ball (7), the other end of the second middle stay wire (6 b) is fixedly connected with the second displacement sensor (4 b),
one end of the third middle stay wire (6 c) is fixedly connected with the measuring ball (7), the other end of the third middle stay wire (6 c) is fixedly connected with the third displacement sensor (4 c),
one end of the fourth middle stay wire (6 d) is fixedly connected to the measuring ball (7), and the other end of the fourth middle stay wire (6 d) is fixedly connected to the fourth displacement sensor (4 d);
the first middle stay wire (6 a), the second middle stay wire (6 b), the third middle stay wire (6 c) and the fourth middle stay wire (6 d) are made of indium steel wires, and protective sleeves are sleeved outside the first middle stay wire (6 a), the second middle stay wire (6 b), the third middle stay wire (6 c) and the fourth middle stay wire (6 d);
the stack body landslide large deformation flexible monitoring device also comprises a data acquisition device (8) and a storage battery (10),
the data collector (8) is used for collecting the data of the first displacement sensor (4 a), the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d),
The storage battery (10) is used for supplying power to the data acquisition device (8).
2. The stack landslide large deformation flexible monitoring device of claim 1, wherein the second displacement sensor (4 b), the third displacement sensor (4 c), and the fourth displacement sensor (4 d) are in the same horizontal plane.
3. The stack landslide large deformation flexible monitoring device according to claim 1 or 2, characterized in that the bracket (5) comprises a first upright (5 a), a second upright (5 b), a third upright (5 c), a first connecting rod (15 a), a second connecting rod (15 b) and a third connecting rod (15 c),
one end of the first connecting rod (15 a) is fixedly connected to the top end of the first upright post (5 a), the other end of the first connecting rod (15 a) is fixedly connected to the top end of the second upright post (5 b),
one end of the second connecting rod (15 b) is fixedly connected to the top end of the first upright post (5 a), the other end of the second connecting rod (15 b) is fixedly connected to the top end of the third upright post (5 c),
one end of the third connecting rod (15 c) is fixedly connected to the top end of the second upright post (5 b), the other end of the third connecting rod (15 c) is fixedly connected to the top end of the third upright post (5 c),
The second displacement sensor (4 b) is arranged at the top end of the first upright post (5 a), the third displacement sensor (4 c) is arranged at the top end of the third upright post (5 c), and the fourth displacement sensor (4 d) is arranged at the top end of the second upright post (5 b).
4. A stack landslide large deformation flexible monitoring device according to claim 3, characterized in that the length of the first connecting rod (15 a), the length of the second connecting rod (15 b) and the length of the third connecting rod (15 c) are all equal.
5. The stack landslide large deformation flexible monitoring device according to claim 1, wherein the first middle stay wire (6 a) is arranged on the central axis of the measuring tube (1).
6. The stack landslide large deformation flexible monitoring device of claim 1 further comprising a solar panel (11), said solar panel (11) being adapted to provide electrical energy to said battery (10).
7. The stack landslide large deformation flexible monitoring device of claim 1 further comprising a first transmission line (16 a), a second transmission line (16 b), a third transmission line (16 c) and a fourth transmission line (16 d),
one end of the first transmission line (16 a) is fixedly connected with the first displacement sensor (4 a), the other end of the first transmission line (16 a) is fixedly connected with the data collector (8),
One end of the second transmission line (16 b) is fixedly connected with the second displacement sensor (4 b), the other end of the second transmission line (16 b) is fixedly connected with the data collector (8),
one end of the third transmission line (16 c) is fixedly connected to the third displacement sensor (4 c), and the other end of the third transmission line (16 c) is fixedly connected to the data collector (8).
8. The stack landslide large deformation flexible monitoring device of claim 7 further comprising a transmitter (9),
the data collector (8) can transmit displacement data collected from the first displacement sensor (4 a), the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) to a data processor by using the transmitter (9).
9. The stack landslide large deformation flexibility monitoring and analyzing method based on the stack landslide large deformation flexibility monitoring device of any one of claims 1 to 8, characterized in that the movement direction of the slide bed (13) relative to the slide bed (12) is calculated by taking the slide bed (12) as a reference, and the movement direction of the slide bed (12) relative to the slide bed (13) is obtained as the movement is opposite, namely the landslide sliding direction, the stack landslide large deformation flexibility monitoring and analyzing method comprises the following steps:
Defining the position coordinate of the ball (7) as P (X, Y, Z), and defining the position point of the second displacement sensor (4 b) as O 1 The position point of the third displacement sensor (4 c) is O 2 The position point of the fourth displacement sensor (4 d) is O 3 P and O 1 、O 2 、O 3 The distance between them is L, M, N, namely PO 1 ＝L、PO 2 ＝M、PO 3 N, the distance between the three rope outlets is a, i.e. O 1 O 2 ＝O 2 O 3 ＝O 1 O 3 =a, build a coordinate system, where O 1 The point is the origin, the X axis and the Y axis are in the horizontal plane, the Y axis is oriented in the north direction, the X axis is oriented in the east direction, the Z axis is oriented in the zenith direction, the geometrical method is used for determining the coordinate P (X, Y, Z) of the measuring ball (7), and the equation (1) is established as follows:
wherein Z has two solutions, in the effective working range of the device, the measuring ball 7 is not positioned above the bracket (5), so that only the negative solution is adopted, and the equation (2) can be obtained by solving the equation:
measuring and calculating the ball (7) and O respectively by using the second displacement sensor (4 b), the third displacement sensor (4 c) and the fourth displacement sensor (4 d) 1 、O 2 、O 3 Is of the initial distance L 0 、M 0 、N 0 The initial coordinate P (X) of the ball (7) can be calculated by the formula (2) 0 、Y 0 、Z 0 ) By measuring the sliding body 12, the ball (7) and O at a certain moment 1 、O 2 、O 3 Distance L between s 、M s 、N s The coordinate P (X) s 、Y s 、Z s ) The displacement accumulated direction vector of the ball (7) under the established coordinate system is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) The displacement direction of the ball (7) can also be obtained by adopting the same method in any time interval, the sliding body (12) and the bracket (5) fixed on the sliding body are taken as reference objects, and as the fixed point in the sliding bed (13) is connected with the ball (7) through the edge stay wire (3), the fixed point in the sliding bed (13) is consistent with the movement direction of the ball (7), and the movement direction vector of the sliding bed (13) relative to the sliding body (12) is (X) s -X 0 、Y s -Y 0 、Z s -Z 0 ) According to the relativity of the movement, the sliding direction vector of the sliding body (12) is obtained as (X) 0 -Xs、Y 0 -Y s 、Z 0 -Z s )；
The landslide displacement can be known through the reading change condition of the displacement sensor;
the sliding surface displacement can be obtained by analyzing the reading change characteristics of the displacement sensors connected with the pull ropes with different depths, and the position of the sliding surface can be determined by analyzing the reading change conditions of the displacement sensors.
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| CN113670182B (en) * | 2021-08-17 | 2023-02-28 | 中国地质大学（武汉） | Method, system and terminal for measuring landslide motion characteristic parameters of deep tunnel |
| CN113744494B (en) * | 2021-08-30 | 2022-12-09 | 国网浙江省电力有限公司台州供电公司 | Use method of equipment for monitoring stacking stability |
| CN114894242B (en) * | 2022-04-08 | 2024-03-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Displacement amplification equipment for slope protection early warning |
| CN116164687B (en) * | 2023-04-26 | 2023-07-21 | 南京泰普森自动化设备有限公司 | Workpiece size measuring method and device |
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