CN104154865A - Soil mass displacement monitoring and collecting device and method based on laboratory experimental environment - Google Patents
Soil mass displacement monitoring and collecting device and method based on laboratory experimental environment Download PDFInfo
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- CN104154865A CN104154865A CN201410418104.4A CN201410418104A CN104154865A CN 104154865 A CN104154865 A CN 104154865A CN 201410418104 A CN201410418104 A CN 201410418104A CN 104154865 A CN104154865 A CN 104154865A
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Abstract
The invention discloses a soil mass displacement monitoring and collecting device and method based on a laboratory experimental environment. The device comprises a model testing box (1), a data collecting system, a data receiving system and a data conversion system. The data collecting system comprises a device (4) and a lighting device (5), wherein the device (4) has the shooting or camera shooting function. A perspex sheet (2) is arranged on the obverse side of the model testing box (1) and provided with meshes (10). A support (6) is arranged below the data collecting system. The data collecting system is connected with the data receiving system through a wire (7). The data receiving system is composed of a collecting device (8) and a computer (9). The collecting device (8) is connected with the computer (9) through a wire (7). The soil mass displacement monitoring and collecting device and method have the advantages of improving the experiment monitoring environment and reducing monitoring difficulty, and are suitable for application and popularization.
Description
Technical field
The invention belongs to Geotechnical Engineering laboratory experiment equipment technical field, relate to a kind of monitoring of soil displacement collecting device and method based on laboratory experiment environment.
Background technology
The experiment of geotechnique's indoor model is the research method that Geotechnical Engineering problem extensively adopts.Land movement settlement observation is the main test parameter of geotechnique's experiment, consequently analyzes the major influence factors of resistance to shear of soil distribution and underground structure mechanical property.Existing land movement testing tool is that instrument range is larger, utilizes it under laboratory experiment environment, directly to read experimental data, causes laboratory experiment data test precision low for the DATA REASONING of engineering site experiment.Indoor model test data of experiment is less, ignores measuring accuracy factor, and instrument error causes test data of experiment and the excessive even error in data of actual deviation.
Summary of the invention
The object of the invention is to overcome the defect that above-mentioned technology exists, a kind of monitoring of soil displacement collecting device and method based on laboratory experiment environment is provided, to utilize acquisition system that the monitoring figure of land movement sedimentation in experiment is stored in data receiving system, by organized data converse routine, the pixel coordinate of settlement point on soil body sedimentation figure is extracted, obtain being convenient to test the data text of post-processed, convert experimental observation image to data file output, it is blank that this cover collecting device is filled up existing indoor geotechnological experimental tester device, reduce experimental monitoring difficulty, improve experimental data measuring accuracy and treatment effeciency.Its concrete technical scheme is:
A kind of monitoring of soil displacement collecting device based on laboratory experiment environment, comprise model test box 1, data acquisition system (DAS), data receiving system and data conversion system, described data acquisition system (DAS) comprises having takes pictures or camera function equipment 4 and lighting device 5, the front of model test box 1 is provided with poly (methyl methacrylate) plate 2, at poly (methyl methacrylate) plate 2, be provided with grid 10, by visual poly (methyl methacrylate) plate 2, realize displacement observation station in model test box 13 is carried out to data acquisition.Data acquisition system (DAS) below is provided with bearing 6, and data acquisition system (DAS) is connected with data receiving system by wire 7, and data receiving system is comprised of harvester 8 and computer 9, and harvester 8 is connected by wire 7 with computer 9.Mathematical software organized data converse routine forms data conversion system, can obtain the vertical range of mesh lines 10 on displacement observation point 3 in the scale 11 in data converter and poly (methyl methacrylate) plate, and then generation experimental monitoring data file.
Preferably, the fixed form of the bearing of described data acquisition system (DAS), for supporting, is adsorbed or hangs.
Preferably, described in, have and take pictures or camera function equipment can be computer camera, camera, DVR, or other can capture the digital equipment of image.
Preferably, described lighting device is to have to take pictures or flashlamp that camera function equipment carries, or external light source, LED lamp etc.
Preferably, described harvester can be many sockets USB or USB HUB etc.
A monitoring of soil displacement acquisition method based on laboratory experiment environment, comprises the following steps:
Step 1: the Installation and Debugging of monitoring of soil displacement collecting device.In shop experiment, complete model test box and poly (methyl methacrylate) plate installation, and bury underground after displacement observation point at the soil body, Installation and Debugging monitoring of soil displacement collecting device, comprises the fixing of data acquisition system (DAS), with being connected of data receiving system, and the debugging of data conversion system;
Step 2: the collection of displacement observation point initial displacement.According to experiment purpose, in model test box, banket and reach specified altitude assignment and reach after degree of compaction standard, bury displacement observation point underground, by data acquisition system (DAS), gather the now initial displacement image of each observation station, and be transferred to data receiving system, log-on data converse routine, the relative position image of mesh lines on program display displacement observation point and poly (methyl methacrylate) plate, mouse point is got mesh lines and the displacement observation point on image, the poor initial displacement data file File (0) that is displacement observation point distance webs ruling of pixel coordinate at two places;
Step 3: the displacement acquisition of the displacement observation point increasing with the experiment depth of fill.Follow-up experiment process, in model test box, banket and reach specified altitude assignment a (a represents the depth of fill, unit: m) and reach after degree of compaction standard, by data acquisition system (DAS), gather the now displacement diagram picture of each observation station, and be transferred to data receiving system, log-on data converse routine, the relative position image of mesh lines on this depth of fill condition bottom offset observation station of program display and poly (methyl methacrylate) plate, mouse point is got mesh lines and the displacement observation point on image, the poor displacement data file File (a) that is displacement observation point distance webs ruling of pixel coordinate at two places, the data file File of each observation station (a) is subtracted each other with in File (0), data are corresponding, obtain the displacement data of this depth of fill condition bottom offset observation station,
Step 4: the process of repeating step 3, until test stops, generates the data file of displacement observation point.
Compared with prior art, beneficial effect of the present invention is:
(1) improve under existing laboratory experiment environmental baseline the present situation that land movement testing tool lacks.(2) substitute the data monitoring instrument that adopts engineering site experiment, improve the Monitoring Data precision of the indoor displacement experiment of the discrete materials such as the soil body.(3) improve experimental monitoring environment, reduce monitoring difficulty.By after the fixing debugging of this cover monitoring collecting device, experimenter only need can complete surveillance map picture to the transfer process of data in computer previous action, obtains experimental result, and without measuring sedimentation deformation numerical value to experimental site scene.(4) improve the efficiency of data processing.Data acquisition system (DAS) by image transmitting after data receiving system, log-on data converting system, the shift value of each displacement observation point only need mouse on computer screen point get 2 points, can draw displacement data, the time of data processing shortens greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the monitoring of soil displacement collecting device based on laboratory experiment environment in the embodiment of the present invention;
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1;
Fig. 3 is the data converter interface schematic diagram of Fig. 1;
Fig. 4 is the schematic flow sheet that the present invention is based on the monitoring of soil displacement acquisition method of laboratory experiment environment.
Shown in figure: 1-model test box, 2-poly (methyl methacrylate) plate, 3-displacement observation point, 4-takes pictures or camera function equipment, 5-lighting device, 6-bearing, 7-wire, 8-harvester, 9-computer, 10-grid, 11-data converter in scale.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in more detail.
A kind of monitoring of soil displacement collecting device based on indoor environment, in the experiment of indoor ground, soil body sedimentation deformation is taken pictures or data acquisition system (DAS) that camera function equipment and lighting device form is adopted integrated image by having, the sedimentation deformation image of each displacement observation station stores in data receiving system computer, based on mathematical software establishment computer program composition data converting system core, mouse picks up in the displacement diagram picture of program display in observation station and poly (methyl methacrylate) plate the pixel coordinate of mesh lines and then calculates sedimentation deformation data.
For further realizing object of the present invention, the fixed form of described data acquisition system (DAS) can be to support, absorption or three kinds of modes of suspension.Described have take pictures or camera function equipment can be computer camera, camera, DVR, or other can capture the digital equipment of image etc.Described lighting device can be to have to take pictures or flashlamp that camera function equipment carries, or external light source, LED lamp etc.Described harvester can be many sockets USB or USB HUB etc.
As shown in Figure 1, data acquisition system (DAS) comprises to have takes pictures or camera function equipment 4 and lighting device 5, this system increases the initial displacement of laboratory experiment environment land movement observation station 3 with the depth of fill after, the change in displacement of observation station gathers into image file, by harvester 9, be transferred in data receiving system terminal computer 10, mathematical software establishment computer program composition data converting system core, mouse picks up in the displacement diagram picture of program display in observation station and poly (methyl methacrylate) plate the pixel coordinate of mesh lines and then calculates sedimentation deformation data.
Laboratory experiment environment monitoring of soil displacement completes in model test box 1, and model test box side rigid constraint assembles poly (methyl methacrylate) plate 2 observation experiment phenomenons and obtains experimental data image in casing front.On poly (methyl methacrylate) plate, draw grid 10, as the local reference frame of each displacement observation station.
Three kinds of modes of data acquisition system adopted of monitoring of soil displacement collecting device are fixed, and are supported on ground, hang trapped orbit or are adsorbed onto on the poly (methyl methacrylate) plate of model test box front.Data acquisition system (DAS) is connected to harvester and is finally connected to data receiving system terminal computer.
According to experiment purpose, at soil layer assigned address, bury displacement observation point underground, by data acquisition system (DAS), gather the initial displacement image (.jpg of observation station, .bmp wait form), be transferred to data receiving system, log-on data converting system, utilize mathematical software MATLAB programming, the pixel coordinate of mesh lines on observation station in mouse picks up data converse routine in scale 11 and poly (methyl methacrylate) plate, the initial displacement data file (.txt, the forms such as .xls) of poor each observation station of generation of two place's pixel coordinates.Follow experiment process, in model test box, banket and reach a certain height, again gather the displacement diagram picture of each observation station, be transferred to data receiving system, log-on data converting system, obtain the displacement data file of each observation station, subtract each other with the corresponding numerical value of initial displacement data file, obtain the displacement data of each observation station under this depth of fill condition.Repeat this process until experiment stops.
The above; it is only preferably embodiment of the present invention; protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen within the scope of protection of the present invention.
Claims (6)
1. the monitoring of soil displacement collecting device based on laboratory experiment environment, comprise model test box (1), data acquisition system (DAS), data receiving system and data conversion system, described data acquisition system (DAS) comprises having takes pictures or camera function equipment (4) and lighting device (5), the front of model test box (1) is provided with poly (methyl methacrylate) plate (2), at poly (methyl methacrylate) plate (2), be provided with grid (10), data acquisition system (DAS) below is provided with bearing (6), data acquisition system (DAS) is connected with data receiving system by wire (7), data receiving system is comprised of harvester (8) and computer (9), harvester (8) is connected by wire (7) with computer (9).
2. the monitoring of soil displacement collecting device based on laboratory experiment environment according to claim 1, is characterized in that, the fixed form of the bearing of described data acquisition system (DAS), for supporting, is adsorbed or hangs.
3. the monitoring of soil displacement collecting device based on laboratory experiment environment according to claim 1, is characterized in that, described in have and take pictures or camera function equipment is computer camera, camera, DVR, or other can capture the digital equipment of image.
4. the monitoring of soil displacement collecting device based on laboratory experiment environment according to claim 1, is characterized in that, described lighting device is to have to take pictures or flashlamp that camera function equipment carries, or external light source, LED lamp.
5. the monitoring of soil displacement collecting device based on laboratory experiment environment according to claim 1, is characterized in that, described harvester is many sockets USB or USB HUB.
6. the monitoring of soil displacement acquisition method based on laboratory experiment environment, is characterized in that, comprises the following steps:
Step 1: the Installation and Debugging of monitoring of soil displacement collecting device; In shop experiment, complete model test box and poly (methyl methacrylate) plate installation, and bury underground after displacement observation point at the soil body, Installation and Debugging monitoring of soil displacement collecting device, comprises the fixing of data acquisition system (DAS), with being connected of data receiving system, and the debugging of data conversion system;
Step 2: the collection of displacement observation point initial displacement; According to experiment purpose, in model test box, banket and reach specified altitude assignment and reach after degree of compaction standard, bury displacement observation point underground, by data acquisition system (DAS), gather the now initial displacement image of each observation station, and be transferred to data receiving system, log-on data converse routine, the relative position image of mesh lines on program display displacement observation point and poly (methyl methacrylate) plate, mouse point is got mesh lines and the displacement observation point on image, the poor initial displacement data file File (0) that is displacement observation point distance webs ruling of pixel coordinate at two places;
Step 3: the displacement acquisition of the displacement observation point increasing with the experiment depth of fill, follow-up experiment process, in model test box, banket and reach specified altitude assignment a, a represents the depth of fill, unit: m, and reach after degree of compaction standard, by data acquisition system (DAS), gather the now displacement diagram picture of each observation station, and be transferred to data receiving system, log-on data converse routine, the relative position image of mesh lines on this depth of fill condition bottom offset observation station of program display and poly (methyl methacrylate) plate, mouse point is got mesh lines and the displacement observation point on image, the poor displacement data file File (a) that is displacement observation point distance webs ruling of pixel coordinate at two places, the data file File of each observation station (a) is subtracted each other with in File (0), data are corresponding, obtain the displacement data of this depth of fill condition bottom offset observation station,
Step 4: the process of repeating step 3, until test stops, generates the data file of displacement observation point.
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Cited By (3)
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| CN104568368A (en) * | 2014-12-30 | 2015-04-29 | 北京林业大学 | Dynamic monitoring device for surface erosion and deposition caused by wind and sand |
| CN105223336A (en) * | 2015-10-16 | 2016-01-06 | 西南交通大学 | A kind of test unit and method simulating cavity, Shield-bored tunnels stratum initiation Stratum Loss |
| CN105242028A (en) * | 2015-11-11 | 2016-01-13 | 中国矿业大学 | Model test device of soil mass stratification and sedimentation caused by high building load and underground water pumping and infusing and test method |
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Cited By (5)
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| CN104154865B (en) | 2017-11-21 |
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