A kind of sand kind identification and grain fraction analytical equipment
Technical field
The present invention relates to the engineering geology field, be specifically related to a kind of sand kind identification and grain fraction analytical equipment.
Background technology
Sand is a kind of common engineering foundation soil, the character such as the character of engineering and the kind of sand and sand grains component are closely related, such as the coarse sand bearing capacity of the identical packing height than fine sand, under the equal conditions coarse sand and fine sand relatively, more difficult generation sand liquefaction phenomenon etc.Therefore, in engineering investigation, need to take a sample and sieve in order to it is detected test sand, and then obtain the engineering properties situations such as sand kind, grain fraction, nonuniformity coefficient, sand coefficient of curvature and grain composition.At present, obtain these character and need to carry out on-site sampling, transport the sand sample back testing laboratory, then carry out size analysis, carry out the sequence of operations such as sand grains component analysis again, this need to spend a large amount of manpower and materials, has brought a lot of troubles to people.
Given this, this case the inventor further investigate the problems referred to above, then has this case to produce.
Summary of the invention
The object of the present invention is to provide the accurately and rapidly sand kind identification of a kind of simple to operate, easy to use and definite sand character and grain fraction analytical equipment.
In order to achieve the above object, the present invention adopts such technical scheme:
A kind of sand kind identification and grain fraction analytical equipment, comprise the camera chain of sand being photographed to obtain the sand image, process the sand image obtaining the image processing system of sand grains border figure, and have the measurement subsystem, find the solution the data analysis disposal system of subsystem, statistics sub system, differentiation subsystem and analyzing subsystem;
Wherein, above-mentioned measurement subsystem measures the area of the sand grains image after the processing of border, the above-mentioned subsystem of finding the solution is with the circle of sand grains image equivalence one-tenth with homalographic, and obtain circular diameter, be the equivalent grain size of sand grains, the particle size range that has setting in the above-mentioned statistics sub system, and the area that counts the particle size range sand grains image that is positioned at this setting accounts for the ratio of all sand grains image areas, above-mentioned differentiation subsystem determines the sand kind according to embedded sand criteria for classification table module, and above-mentioned analyzing subsystem has sand nonuniformity coefficient computing module, sand coefficient of curvature computing module, sand grains composition curve drafting module and sand grains grading analysis module;
Above-mentioned camera chain, image processing system and data analysis disposal system are worked successively and are cooperated together.
Above-mentioned sand criteria for classification table module is selected from one or more in national standard " criteria for classification of soil " module, national standard " Code for investigation of geotechnical engineering " module, industry standard " port engineering geological mapping standard " module, Ministry of Water Resources's industry standard " earthwork test rule " module, industry standard " railway bridges and culverts ground and foundation design code " module, industry standard " highway earthwork test rule " module.
Above-mentioned camera chain has camera lens, is embedded with light source at the inwall of described camera lens.
Above-mentioned data analysis disposal system has display module.
After adopting technique scheme, sand kind identification of the present invention and grain fraction analytical equipment, comprise the camera chain of sand being photographed to obtain the sand image, process the sand image obtaining the image processing system of sand grains border figure, and integrate the measurement subsystem, find the solution the data analysis disposal system of subsystem, statistics sub system, differentiation subsystem and analyzing subsystem; The measurement subsystem measures the area of the sand grains image after the processing of border, find the solution subsystem with the circle of sand grains image equivalence one-tenth with homalographic, and obtain circular diameter, be the equivalent grain size of sand grains, the particle size range that has setting in the statistics sub system, and count the ratio that the area of setting particle size range sand grains image accounts for all sand grains image areas that is positioned at, differentiate subsystem and determine the sand kind according to embedded sand criteria for classification table module, analyzing subsystem has sand nonuniformity coefficient computing module, sand coefficient of curvature computing module, sand grains composition curve drafting module and sand grains grading analysis module can obtain the nonuniformity coefficient of sand, coefficient of curvature, grain fraction curve and sand grains grating; Camera chain, image processing system and data analysis disposal system are worked successively and are cooperated together, each system's utilization separately function and carry out work according to the annexation of the work of cooperatively interacting, compared with prior art, sand kind identification of the present invention and grain fraction analytical equipment, only need by camera chain sand to be carried out image acquisition at the scene, follow-up image processing system and data analysis disposal system just can be analyzed judgement to this sand image automatically, and then obtain the sand kind, grain fraction, nonuniformity coefficient, the engineering properties situations such as sand coefficient of curvature and grain composition, remove sampling from, transportation, the manually-operated of the series of complexes such as screening and computational analysis, realized robotization, simple to operate, easy to use and definite sand character is accurate, fast.
Description of drawings
Fig. 1 is easy structure synoptic diagram of the present invention;
Fig. 2 is the structural representation of camera chain of the present invention.
Among the figure:
1-camera chain 11-camera lens
111-light source 2-image processing system
3-data analysis disposal system 31-measures subsystem
32-finds the solution subsystem 33-statistics sub system
34-differentiates subsystem
341-national standard " criteria for classification of soil " is module (GBJ145-90)
342-national standard " Code for investigation of geotechnical engineering " is module (GB50021-2001)
343-industry standard " port engineering geological mapping standard " is module (JTJ240-97)
344-Ministry of Water Resources industry standard " earthwork test rule " is module (SL237-1999)
345-industry standard " railway bridges and culverts ground and foundation design code " is module (TB1002.5-2005)
346-industry standard " highway earthwork test rule " (JTJ 051-93) module
The 35-analyzing subsystem
351-sand nonuniformity coefficient computing module
352-sand coefficient of curvature computing module
353-sand grains composition curve drafting module
354-sand grains grading analysis module
The 36-display module
Embodiment
Be described in detail technical scheme of the present invention below by specific embodiment in order further to explain.
A kind of sand kind identification of the present invention and grain fraction analytical equipment as illustrated in fig. 1 and 2, comprise camera chain 1, image processing system 2, and data analysis disposal system 3.
Camera chain 1 has the function of sand being photographed to obtain the sand image, and image processing system 2 has the sand grains on the sand image is carried out the border processing, obtains the function of the boundary shape of each sand grains.Data analysis disposal system 3 collection measure, find the solution, statistics, differentiation and analytic function are in one, comprise and measure subsystem 31, find the solution subsystem 32, statistics sub system 33, differentiate subsystem 34 and analyzing subsystem 35, wherein, measurement subsystem 31 measures the area of the sand grains image after the processing of border, find the solution subsystem 32 with the circle of sand grains image equivalence one-tenth with homalographic, and obtain circular diameter, be the equivalent grain size of sand grains, the particle size range that has setting in the statistics sub system 33, and the area that counts the particle size range sand grains image that is positioned at this setting accounts for the ratio of all sand grains image areas, differentiates subsystem 34 and determines the sand kind according to embedded sand criteria for classification table module; Camera chain 1, image processing system 2 and data analysis disposal system 3 are worked successively and are cooperated together.
Analyzing subsystem 35 is analyzed nonuniformity coefficient, coefficient of curvature, drafting grain fraction curve and the sand grains grating of sand, and structure is particularly:
Analyzing subsystem 35 has sand nonuniformity coefficient computing module 351, the inventor writes entity module with sand nonuniformity coefficient manual calculations method commonly used in the industry, obtain sand nonuniformity coefficient computing module 351, sand nonuniformity coefficient computing module 351 makes data analysis disposal system 3 have the function of calculating the sand nonuniformity coefficient.
Analyzing subsystem 35 has sand coefficient of curvature computing module 352, the inventor writes entity module with sand coefficient of curvature manual calculations method commonly used in the industry, obtain sand coefficient of curvature computing module 352, sand coefficient of curvature computing module 352 makes data analysis disposal system 3 have the function of calculating the sand coefficient of curvature.
Analyzing subsystem 35 has sand grains composition curve drafting module 353, the inventor writes entity module with sand grains composition curve method for drafting commonly used in the industry, obtain sand grains composition curve drafting module 353, sand grains composition curve drafting module 353 makes data analysis disposal system 3 have the function of calculating the sand coefficient of curvature.
Analyzing subsystem 35 has sand grains grading analysis module 354, the inventor writes entity module with sand grains grading analysis method commonly used in the industry, obtain sand grains grading analysis module 354, sand grains grading analysis module 354 makes data analysis disposal system 3 have analysis sand grains grating and obtains the function of accordingly result.
Preferably, be the function of the identification sand kind of specific implementation data analysis disposal system 3, alternative sand criteria for classification table module has (GBJ145-90) module 341 of national standard " criteria for classification of soil ", national standard " Code for investigation of geotechnical engineering " is module 342 (GB50021-2001), industry standard " port engineering geological mapping standard " is module 343 (JTJ240-97), Ministry of Water Resources's industry standard " earthwork test rule " is module 344 (SL237-1999), industry standard " railway bridges and culverts ground and foundation design code " is module 345 (TB1002.5-2005), industry standard " highway earthwork test rule " (JTJ 051-93) module 346.
Preferably, camera chain 1 has camera lens 11, the inwall of camera lens 11 is embedded with light source 111, lamp source 111 in order to illuminate the surface of sand, obtains sand image limpid in sight with 1 shooting of assisted tomography system when camera chain 1 is taken sand, concrete structure can be, camera lens 11 is cylindrical, diameter is between 10-20cm, and length is roughly 10cm, and the light source 111 of two bulb forms is embedded on the inwall of camera lens 11 with the mode symmetry of light direction irradiation outside camera lens.
Preferably, data analysis disposal system 3 has display module 36, display module 36 makes data analysis disposal system 3 have the function that shows each desired parameters, and the analysis result of the result of calculation of the result of calculation of sand nonuniformity coefficient computing module 351, sand coefficient of curvature computing module 352, the drawing result of sand grains composition curve drafting module 353 and sand grains grading analysis module 354 is presented on the display screen of this display module 36.
Sand kind identification of the present invention and grain fraction analytical equipment, in use, camera lens 11 is pressed close to the sand surface photographs, form the sand image, when photography, can be used light source 111 in the necessary situation and illuminate the sand surface, make image more limpid in sight, utilize 2 pairs of these sand images of image processing system to process, obtain the boundary shape of sand grains image, the boundary shape of the sand grains image that is obtained by 3 pairs of image processing systems 2 of data analysis disposal system again carries out analyzing and processing, to draw sand kind and sand grains component situation, specifically, select as required (GBJ145-90) module 341 of contrast national standard " criteria for classification of soil ", national standard " Code for investigation of geotechnical engineering " is module 342 (GB50021-2001), industry standard " port engineering geological mapping standard " is module 343 (JTJ240-97), Ministry of Water Resources's industry standard " earthwork test rule " is module 344 (SL237-1999), industry standard " railway bridges and culverts ground and foundation design code " is module 345 (TB1002.5-2005), industry standard " highway earthwork test rule " (JTJ 051-93) module 346, to obtain corresponding sand kind recognition result, go out as required the nonuniformity coefficient of sand by the function calculating of sand nonuniformity coefficient computing module 351, go out the coefficient of curvature of sand by the function calculating of sand coefficient of curvature computing module 352, form the grain fraction curve of sand by the function of sand grains composition curve drafting module 353, draw the grain composition situation of sand by the functional analysis of sand grains grading analysis module 354, above-mentioned corresponding result is presented on the display screen of display module 36.
Sand kind identification of the present invention and grain fraction analytical equipment, its each module is the entity module structure with corresponding function, and can reach corresponding function by existing known entities module; The shape and size of camera lens and form thereof can be adjusted and design according to actual requirement; The form of light source, quantity and distribution form etc. can be adjusted and design according to actual requirement; Sand criteria for classification table module can be selected from national standard " criteria for classification of soil " (GBJ 145-90) module according to actual requirement, national standard " Code for investigation of geotechnical engineering " is module (GB50021-2001), industry standard " port engineering geological mapping standard " (JTJ 240-97) module, Ministry of Water Resources's industry standard " earthwork test rule " is module (SL237-1999), industry standard " railway bridges and culverts ground and foundation design code " is module (TB1002.5-2005), in industry standard " highway earthwork test rule " (JTJ 051-93) module one or more; Image processing system is by the computer program control of writing.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable variation or the modification of similar thinking to it, all should be considered as not breaking away from patent category of the present invention.