CN106932023B - Ice body internal stress deformation detection system and glacier movement evaluation system - Google Patents
Ice body internal stress deformation detection system and glacier movement evaluation system Download PDFInfo
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- CN106932023B CN106932023B CN201710254429.7A CN201710254429A CN106932023B CN 106932023 B CN106932023 B CN 106932023B CN 201710254429 A CN201710254429 A CN 201710254429A CN 106932023 B CN106932023 B CN 106932023B
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The embodiment of the invention provides an ice body internal stress deformation detection system and a glacier movement evaluation system. The system comprises a hexahedral frame, a pressure gauge unit, a deformation gauge unit and a computing device. The pressure gauge unit arranged on the surface of the frame is used for acquiring the main stress parameter of any point in the ice body, and the deformer unit arranged on the rest surface of the frame is used for acquiring the main strain parameter of any point in the ice body. The computing equipment is electrically connected with the pressure gauge unit and the deformation gauge unit respectively so as to estimate the movement of the glacier where the frame is located according to the main stress parameter and the main strain parameter. Therefore, the main stress parameter and the main strain parameter in the ice body are obtained, the stress condition in the ice body is deduced and analyzed according to the obtained parameter information data, and the trend of the glacier movement and the process of the internal pressure evolution are further obtained.
Description
Technical Field
The invention relates to the technical field of detection and measurement, in particular to an ice body internal stress deformation detection system and a glacier movement evaluation system.
Background
The detection of the movement condition of the glaciers is of great significance to the research of the glaciers. As a special material, in the geometrical and mechanical analysis process of glacier movement, the acquisition and accurate description of the stress state and the strain state of any point in the ice are very important. In the process of monitoring and replaying the glacier movement, the distribution and change rule of the deformation field of the ice body is an important analysis object and control index.
Because it is comparatively difficult to set up relatively unchangeable reference point position at the glacier body, the three-dimensional position change of traditional measuring staff (flower rod) is difficult to confirm to some detecting system structure are complicated, can not use through simply assembling at the scene. Therefore, it is an urgent need to provide a detection system that can be easily assembled on site and can obtain the stress and deformation inside the ice body.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an ice body internal stress deformation detection system and a glacier movement evaluation system, which have simple structures, can be assembled on site, and can measure and obtain a main stress parameter and a main strain parameter of any point in the ice body, so that the internal stress condition of the ice body can be deduced and analyzed according to detected data, and the trend of glacier movement and the process of internal pressure evolution are further obtained.
The invention provides a system for detecting stress deformation in an ice body, which comprises a frame, a pressure gauge unit, a deformer unit and a calculating device, wherein the pressure gauge unit is arranged on the frame;
the frame is of a hexahedral structure;
the pressure gauge unit is arranged on the surface of the frame to acquire main stress parameters of any point in the ice body;
the deformation meter unit is arranged on the rest surface of the frame to obtain a main strain parameter of any point in the ice body;
the pressure gauge unit and the strain gauge unit are respectively and electrically connected with the computing equipment, and the computing equipment estimates the movement of the glacier where the frame is located according to the main stress parameters collected by the pressure gauge unit and the main strain parameters collected by the strain gauge unit.
In a preferred embodiment of the invention, the frame comprises a first set of three mutually perpendicular triangular surfaces and a second set of three mutually perpendicular triangular surfaces.
In a preferred embodiment of the present invention, the pressure gauge unit includes three pressure gauges respectively disposed on each of the triangular surfaces of the first triangular surface group.
In a preferred embodiment of the invention, the deformer unit comprises three deformers, one each disposed on each triangular surface of the second set of triangular surfaces.
In a preferred embodiment of the invention, the system further comprises a positioning unit,
the positioning unit is arranged on the frame and used for protecting the frame and supporting the pressure gauge unit and the deformation meter unit;
the positioning unit comprises a first positioning group, a second positioning group and a third positioning group, and each positioning group comprises a positioning ring body, a level bubble gauge and an electronic goniometer;
the leveling bubble instrument and the electronic angle measuring instrument are both arranged on the positioning ring body, the leveling bubble instrument is used for measuring the levelness of the position of the positioning ring body, and the electronic angle measuring instrument is used for measuring the movement information of the system.
In a preferred embodiment of the present invention, the first positioning set is disposed on a first plane, and the second positioning set and the third positioning set are disposed on a second plane and a third plane, respectively, wherein the first triangular surface set and the second triangular surface set are symmetrical with respect to the first plane, and the first plane, the second plane and the third plane are perpendicular to each other two by two.
In a preferred embodiment of the present invention, the system further comprises a measuring member, the measuring member is a hollow structure, one end of the measuring member is connected to any vertex of the frame, and the signal cables of the pressure gauge unit, the strain gauge unit and the electronic goniometer pass through the measuring member of the hollow structure to be connected to the computing device.
In a preferred embodiment of the invention, the other end of the measuring piece is provided with a north arrow for measuring the trend and the inclination of the frame when the frame moves.
In a preferred embodiment of the invention, the surface of the measuring part is also provided with a scale which is used for measuring the up-and-down movement of the frame relative to the surface of the ice body.
The invention further provides a glacier movement evaluation system, which comprises the ice body internal stress deformation detection system.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an ice body internal stress deformation detection system and a glacier movement evaluation system. The system comprises a hexahedral frame, a pressure gauge unit, a deformation gauge unit and a computing device. The pressure gauge unit is arranged on the surface of the frame and used for acquiring main stress parameters of any point in the ice body; the deformer unit is arranged on the rest surface of the frame and used for acquiring a main strain parameter of any point in the ice body. The pressure gauge unit and the strain gauge unit are respectively electrically connected with the computing equipment, and the computing equipment receives the main stress parameters collected by the pressure gauge unit and the main strain parameters collected by the strain gauge unit. Therefore, the system can be obtained by assembling the prefabricated components, and the main stress parameter and the main strain parameter in the ice body are obtained through the system, so that the stress condition in the ice body is deduced and analyzed according to the main stress parameter and the main strain parameter, and the movement of the glacier where the frame is located is estimated.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block diagram of a system for detecting stress deformation in an ice body according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a stress deformation detection system in an ice body according to a preferred embodiment of the invention.
FIG. 3 is a block schematic diagram of the computing device of FIG. 1.
Fig. 4 is a second schematic structural diagram of a stress deformation detection system in an ice body according to a preferred embodiment of the invention.
Fig. 5 is a second block diagram of a stress deformation detection system in an ice body according to a preferred embodiment of the present invention.
Fig. 6 is a third schematic structural diagram of a stress deformation detection system in an ice body according to a preferred embodiment of the present invention.
Icon: 10-an ice body internal stress deformation detection system; 100-a frame; 101-a first triangular surface; 102-a second triangular surface; 103-a third triangular surface; 104-a fourth triangular surface; 105-a fifth triangular surface; 106-a sixth triangular surface; 110-a first set of triangular surfaces; 120-a second set of triangular surfaces; 200-a pressure gauge unit; 201-a pressure gauge; 300-a strain gauge unit; 301-a strain gauge; 400-a computing device; 401-a memory; 402-a memory controller; 403-a processor; 510-a first set of positioning bits; 511-positioning the ring body; 512-level bubble gauge; 513-electronic goniometer; 600-a measuring member; 601-a first end; 602-a second end; 610-north arrow.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention usually place when in use, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the system or the elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a block diagram illustrating a stress deformation detection system 10 in an ice body according to a preferred embodiment of the present invention. The system 10 for detecting stress deformation in an ice body comprises a pressure gauge unit 200, a deformer unit 300 and a computing device 400. The pressure gauge unit 200 is used for acquiring a main stress parameter of any point in the ice body, and the strain gauge unit 300 is used for acquiring a main strain parameter of any point in the ice body. The pressure gauge unit 200 and the strain gauge unit 300 are respectively electrically connected to the computing device 400, and the computing device 400 estimates the motion of the glacier according to the data sent by the pressure gauge unit 200 and the strain gauge unit 300.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a stress deformation detection system 10 in an ice body according to a preferred embodiment of the present invention. The system 10 for detecting stress deformation in an ice body further comprises a frame 100. Wherein the frame 100 has a hexahedral structure. In this embodiment, the pressure gauge unit 200 is disposed on the surface of the frame 100 to obtain the principal stress parameter at any point inside the ice body, and the strain gauge unit 300 is disposed on the remaining surface of the frame 100 to obtain the principal strain parameter at any point inside the ice body. Therefore, the system measures and obtains the main stress parameter and the main strain parameter of any point in the ice body, thereby estimating the movement of the glacier where the frame 100 is located.
In an embodiment of the present embodiment, the frame 100 may be composed of 9 metal (e.g., steel) members.
In the present embodiment, the frame 100 includes a first triangular surface set 110 and a second triangular surface set 120. The first triangular surface group 110 includes a first triangular surface 101, a second triangular surface 102 and a third triangular surface 103, which are perpendicular to each other.
Wherein, the triangular surfaces in the first triangular surface group 110 are all right-angled isosceles triangles. The & lt BAC of the first triangular surface 101 is a right angle, the & lt CAD in the second triangular surface 102 is a right angle, and the & lt BAD in the third triangular surface 103 is a right angle.
The second triangular surface group 120 includes a fourth triangular surface 104, a fifth triangular surface 105 and a sixth triangular surface 106, which are perpendicular to each other.
Wherein, the triangular surfaces in the second triangular surface group 120 are all right-angled isosceles triangles. The & lt BEC of the fourth triangular surface 104 is a right angle, the & lt CED of the fifth triangular surface 105 is a right angle, and the & lt BED of the sixth triangular surface 106 is a right angle.
In the present embodiment, the pressure gauge unit 200 includes three pressure gauges 201, and the three pressure gauges 201 are respectively disposed on each of the triangular surfaces in the first triangular surface group 110 to obtain the principal stress parameter. Because the three triangular surfaces of the first triangular surface group 110 are perpendicular to each other, great convenience is provided for analyzing the principal stress parameter by using mechanics. In this embodiment, the pressure gauge 201 may be a vibrating wire pressure gauge, because the vibrating wire pressure gauge has the advantage of accurate reading.
In the present embodiment, the strain gauge unit 300 includes three strain gauges 301, and the three strain gauges 301 are respectively disposed on each of the triangular surfaces in the second triangular surface group 120 to obtain the main strain parameter. Since the three triangular surfaces of the second triangular surface group 120 are perpendicular to each other, great convenience is provided for analyzing the principal strain parameter by using kinematics. In the embodiment of the present embodiment, the strain gauge 301 may be a resistance type strain gauge, which is a sensor that converts an non-electrical physical quantity such as displacement, force, pressure, acceleration, torque, etc. into a change in resistance value.
Wherein, the pressure gauge 201 and the deformer 301 can be arranged at the center of the triangular surface, so as to measure the main stress parameter and the main strain parameter more accurately.
Referring to fig. 3, fig. 3 is a block diagram illustrating the computing apparatus 400 in fig. 1. The computing device 400 may be, but is not limited to, a Personal Computer (PC), a tablet computer, and the like. The computing device 400 includes a memory 401, a memory controller 402, and a processor 403. The elements of the memory 401, the memory controller 402 and the processor 403 are electrically connected directly or indirectly to realize data transmission or interaction.
The memory 401 may be used to store data sent by the pressure gauge unit 200 and the strain gauge unit 300, and may also store an analysis system for analyzing the data, and the form of the analysis system in the memory 401 may be software or firmware. The Memory 401 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), and the like. Access to the memory 401 by the processor 403 and possibly other components may be under the control of the memory controller 402.
The processor 403 may be an integrated circuit chip having signal processing capabilities. The Processor 403 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like.
It will be appreciated that the configuration shown in FIG. 3 is merely illustrative and that computing device 400 may also include more or fewer components than shown in FIG. 3 or have a different configuration than shown in FIG. 3. The components shown in fig. 3 may be implemented in hardware, software, or a combination thereof.
In the present embodiment, the system 10 for detecting stress deformation in ice further comprises a positioning unit. The positioning unit is disposed on the frame 100, and the positioning unit is used for protecting the frame 100 and supporting the pressure gauge unit 200 and the strain gauge unit 300.
The positioning unit includes a first positioning group 510, a second positioning group, and a third positioning group. Referring to fig. 4, fig. 4 is a second schematic structural diagram (only the first positioning group 510 is shown) of the stress deformation detection system 10 in an ice body according to the preferred embodiment of the present invention. The first positioning group 510, the second positioning group and the third positioning group respectively comprise a positioning ring body 511, a leveling bubble gauge 512 and an electronic goniometer 513.
The positioning ring body 511 is a ring-shaped structure and may be made of a metal material (e.g., stainless steel). The pressure gauge 201 or strain gauge 301 may be secured to the retaining ring 511 by some securing system (e.g., a wire).
The level bubble gauge 512 and the electronic goniometer 513 are both arranged on the positioning ring body 511. The level bubble gauge 512 is used for measuring the levelness of the position of the retainer ring body 511, and the retainer ring body 511 can be placed and balanced through the level bubble gauge 512.
Referring to fig. 5, fig. 5 is a second schematic block diagram of a stress deformation detection system 10 in an ice body according to a preferred embodiment of the present invention. The electronic goniometer 513 is electrically connected to the computing device 400. The electronic goniometer 513 is configured to obtain information about movement (e.g., translation, rotation) of the frame 100.
In this embodiment, the first positioning group 510 is disposed on a first plane, and the second positioning group and the third positioning group are disposed on a second plane and a third plane, respectively. The first triangular surface set 110 and the second triangular surface set 120 are mirror-symmetrical with respect to the first plane, and the first plane, the second plane and the third plane are perpendicular to each other two by two.
Referring to fig. 6, fig. 6 is a third schematic structural diagram of a stress deformation detection system 10 in an ice body according to a preferred embodiment of the present invention. The system 10 for detecting stress deformation in ice body further comprises a measuring member 600. The measuring member 600 is a hollow structure, and the measuring member 600 includes a first end 601 and a second end 602. The first end 601 is connected to any one of the vertices of the frame 100, and the signal cables of the pressure gauge unit 200, the strain gauge unit 300, and the electronic goniometer 513 are connected to the computing apparatus 400 through the measuring member 600 having a hollow structure. Through burying the ice body internal stress deformation detection system 10 (not containing the computing equipment 400) in the different depth positions of the ice body underground, the computing equipment 400 obtains the three-dimensional motion characteristics of the ice body at different depth positions, obtains the main stress size and direction and the main strain size and direction of any point in the ice body, and obtains the distribution rule and the change characteristics of the main stress and the main strain after analyzing the obtained data. Meanwhile, after the frame 100 is buried in an ice body, the in-situ ice chips can be used for backfilling and freezing, so that the interference of construction on the measurement result and the precision is reduced.
In this embodiment, the second end 602 is provided with a north arrow 610. In practical applications, when the frame 100 is buried in an ice body, the measuring member 600 is perpendicular to the surface of the ice body. The north arrow 610 of the measuring member 600 is exposed to the surface of the ice body to a certain height, and the north arrow 610 is used for measuring the trend and the inclination of the frame 100 when the frame 100 moves, so as to obtain the three-dimensional motion characteristics of the frame 100 on the surface of the ice body.
In this embodiment, the measuring member 600 is further provided with a scale on the surface thereof, and the scale is used for measuring the up-and-down movement of the frame 100 relative to the surface of the ice body.
The preferred embodiment of the present invention further provides a glacier movement evaluation system, which includes the above-mentioned stress deformation detection system 10 in the ice body.
In summary, the invention provides an ice internal stress deformation detection system and a glacier movement evaluation system. The system comprises a frame, a pressure gauge unit, a strain gauge unit and a computing device. The frame is of a hexahedral structure, the pressure gauge unit for acquiring the main stress parameter of any point in the ice body is arranged on the surface of the frame, and the deformer unit for acquiring the main strain parameter of any point in the ice body is arranged on the rest surfaces of the frame. The calculating equipment is electrically connected with the pressure gauge unit and the deformer unit respectively to obtain the main stress parameters collected by the pressure gauge unit and the main strain parameters collected by the deformer unit, and after calculation and derivation, the main stress state and the main strain state of the point are obtained, so that the geometrical motion and stress of glaciers are analyzed and data support is realized.
Besides, the system can be obtained by assembling a separate frame, a pressure gauge unit, a deformation gauge unit and a computing device when in use, so that the system is more applicable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An ice body internal stress deformation detection system is characterized by comprising a frame, a pressure gauge unit, a deformer unit and a computing device;
the frame is of a hexahedral structure;
the pressure gauge unit is arranged on the surface of the frame to acquire main stress parameters of any point in the ice body;
the deformation meter unit is arranged on the rest surface of the frame to obtain a main strain parameter of any point in the ice body;
the pressure gauge unit and the strain gauge unit are respectively and electrically connected with the computing equipment, and the computing equipment estimates the movement of the glacier where the frame is located according to the main stress parameters collected by the pressure gauge unit and the main strain parameters collected by the strain gauge unit;
wherein the frame comprises a first triangular surface group consisting of three mutually perpendicular triangular surfaces and a second triangular surface group consisting of three other mutually perpendicular triangular surfaces;
the system further comprises a positioning unit for positioning the object,
the positioning unit is arranged on the frame and used for protecting the frame and supporting the pressure gauge unit and the deformation meter unit;
the positioning unit comprises a first positioning group, a second positioning group and a third positioning group, and each positioning group comprises a positioning ring body, a leveling bubble instrument and an electronic goniometer;
the leveling bubble instrument and the electronic angle measuring instrument are both arranged on the positioning ring body, the leveling bubble instrument is used for measuring the levelness of the position of the positioning ring body, and the electronic angle measuring instrument is used for measuring the movement information of the system;
the first positioning group is arranged on a first plane, and the second positioning group and the third positioning group are respectively arranged on a second plane and a third plane, wherein the first triangular surface group and the second triangular surface group are symmetrical relative to the first plane mirror, and the first plane, the second plane and the third plane are vertical to each other in pairs.
2. The system of claim 1,
the pressure gauge unit includes three pressure gauges respectively disposed on the respective triangular surfaces of the first triangular surface group.
3. The system of claim 2,
the strain gauge unit includes three strain gauges respectively provided on each of the triangular surfaces in the second triangular surface group.
4. The system of claim 1, further comprising a measuring member having a hollow structure, wherein one end of the measuring member is connected to any one of the vertices of the frame, and the signal cables of the pressure gauge unit, the strain gauge unit and the electronic goniometer are connected to the computing device through the hollow structure of the measuring member.
5. The system of claim 4, wherein the other end of the measuring member is provided with a north arrow for measuring the orientation and inclination of the frame when the frame is moved.
6. The system of claim 4, wherein the measuring member further comprises a scale on a surface thereof, the scale being used for measuring up and down movement of the frame relative to the surface of the ice body.
7. A glacier movement assessment system, characterized in that the system comprises an ice internal stress deformation detection system according to any one of claims 1-6.
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| CN108986413A (en) * | 2018-08-16 | 2018-12-11 | 长江水利委员会长江科学院 | A kind of glade disaster monitoring and method for early warning based on multi-source information data |
| CN109470242A (en) * | 2018-12-05 | 2019-03-15 | 中国科学院寒区旱区环境与工程研究所 | Glacier parameter monitoring system and method |
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