CN111965221B - Intelligent detection system and method for rapidly acquiring muck engineering property and pollution property - Google Patents
Intelligent detection system and method for rapidly acquiring muck engineering property and pollution property Download PDFInfo
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- CN111965221B CN111965221B CN202010553845.9A CN202010553845A CN111965221B CN 111965221 B CN111965221 B CN 111965221B CN 202010553845 A CN202010553845 A CN 202010553845A CN 111965221 B CN111965221 B CN 111965221B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
Abstract
The invention discloses an intelligent detection system and method for rapidly acquiring the engineering property and pollution property of muck. The injection type multi-parameter probe is arranged on a portal frame of the entrance weighbridge channel, the injection type multi-parameter probe is arranged on the portal frame through an electric lifting system, and the high-definition camera is arranged at the lower end of a longitudinal beam of the portal frame; descending the injection type multi-parameter probe and inserting the probe into the muck; collecting a cone index test result through a load sensor and a signal collector; when the injection type multi-parameter probe is lowered into the slag soil, the signal generator sends out electromagnetic waves, and the echo signal circuit returns to obtain the dielectric constant and the conductivity of the slag soil, so that the pollution is judged. The invention adopts the penetration type multi-parameter probe to obtain the detection data of the engineering property and the pollution property of the slag soil, uses the conical index to represent the engineering property of the slag soil, uses the dielectric constant and the conductivity to obtain the ionic pollution degree of the slag soil, quickly and accurately judges the pollution property of the slag soil, has high automation degree and realizes the high-efficiency intelligent supervision of the quality of the slag soil in the transportation process.
Description
Technical Field
The invention relates to a system and a method for detecting the quality of muck, in particular to an intelligent detection system and an intelligent detection method for rapidly obtaining the engineering property and the pollution property of the muck.
Background
The engineering residual soil is waste soil generated in the excavation and construction processes of urban underground engineering such as various buildings, structures, pipe networks and the like. Large-scale development and construction of underground spaces of various cities in China generate a large amount of engineering muck, and the annual output in China reaches more than 20 hundred million tons. At present, most engineering slag soil is transported to low-lying lands around cities for backfilling or receiving sites for stacking and filling treatment, some coastal cities utilize the engineering slag soil to fill the sea to build the land, and some cities utilize the engineering slag soil to backfill waste pits to reclaim the land for agriculture. Coastal areas are mostly located in soft soil distribution areas of China, engineering dregs of the engineering are not lack of structural soft soil such as cohesive soil, mucky soil and the like, and different soils have respective engineering characteristics, such as strong water permeability of gravel soil, low compressibility and high shear strength, and are good foundations of common buildings; the sandy soil has strong water permeability, low compressibility, fast compression process and larger bearing capacity, and is not only a good foundation of a building but also a good concrete aggregate; due to different reasons and ages of the cohesive soil, the engineering properties are greatly different, and the clay with long deposition age has higher strength, lower compressibility and better engineering performance; the mucky soil is loose and weak, the structure is easy to be disturbed and damaged, the strength is low, and the engineering property is very poor. Therefore, it is necessary to classify, consider and evaluate the dregs according to engineering properties to select a proper recycling method or a proper processing technology to meet engineering requirements. On the other hand, the mineral composition and the environmental quality of the engineering muck are mainly determined by the soil quality and the environmental quality of the earthwork excavated at the construction site. At present, soil and underground water in many cities in China are polluted to a certain degree, and pollutants mainly come from leakage of chemicals in industrial areas, leakage of domestic sewage pipelines and the like. Although these contaminated soil distributions are localized, large-scale underground excavation works (such as subway tunnels) inevitably encounter contaminated areas. Some of the pollutants (such as heavy metals) in the excavated earthwork are colorless and odorless and are difficult to identify by naked eyes and olfaction. Once the engineering slag soil containing pollutants is transported to a backfill utilization or pile-up disposal site, secondary pollution is possibly caused to the site and surrounding soil and underground water, and further the health of surrounding residents is threatened. Engineering muck is generally subjected to links such as temporary storage, transportation, transfer and the like in a construction site before being utilized or disposed by piling. If an effective detection means is lacked in the circulation links, the residue soil containing pollutants can be mixed into clean earthwork to cause cross pollution, and further the disposal site is polluted. On the contrary, if effective screening and detection measures can be taken at the site source and the circulation link, the environmental quality of the engineering muck can be guaranteed. Therefore, it is necessary to set an engineering and pollution detection barrier in the transfer link of the engineering muck, so as to prevent the transportation of the polluted muck in the circulation process in time and ensure the pollution-free reutilization of the engineering muck.
The injection type multi-parameter probe can be used as a function integrated detection device to well solve the problems. The cone head on the probe utilizes the load sensor to carry out drilling measurement on soil, can obtain a Cone Index (CI), namely soil penetration resistance, can comprehensively reflect physical and mechanical properties of the soil, carries out engineering characterization on a target soil body, and has the characteristics of convenience in operation and visual data. The TDR probe on the probe performs pollution analysis on the soil medium by adopting a time domain reflection method, the basic principle of the time domain reflection is to excite an electromagnetic pulse, the pulse can be transmitted along a cable, the reflection of the wave can be generated once the characteristics of the medium are changed, and the composition characteristics of the target medium can be mastered by observing and analyzing the reflection waveform. The technology is applied to soil detection, so that electric parameters such as the dielectric constant, the conductivity and the like of the soil body can be obtained, and the parameters are analyzed and processed according to the residue soil ion type pollution assessment method in the invention, so that the soil body pollution condition can be reflected. The method is rapid and accurate, avoids sampling detection with complex operation, and can visually judge the pollution of the engineering slag soil.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides an intelligent detection system and method for rapidly obtaining the engineering property and the pollution property of the muck. The system can be arranged at an outlet of a construction site or an inlet of an engineering muck transfer wharf, and a data processing system is used for analyzing and obtaining basic properties and parameter results of the muck and feeding the results back to a muck transportation production line through a signal indicator lamp in real time, so that the intelligent monitoring of the engineering muck transfer process is realized.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an intelligent detection system for rapidly obtaining the engineering property and the pollution property of muck is disclosed:
the system comprises an injection type multi-parameter probe, a portal frame, an electric lifting system, a high-definition camera and a data processing system; the injection type multi-parameter probes are arranged on a portal frame of an entrance weighbridge channel at an exit of a construction site or a muck transfer terminal, five injection type multi-parameter probes are arranged on the top of the portal frame through respective electric lifting systems, and one of the five injection type multi-parameter probes is positioned in the center, and four injection type multi-parameter probes are radially distributed around; the portal frame is provided with five electric lifting systems, the electric lifting systems control the ascending and descending of the probes, each electric lifting system independently controls one penetration type multi-parameter probe, and the high-definition camera is arranged at the lower end of the longitudinal beam of the portal frame; injection type multi-parameter probe, electric lift system, high definition digtal camera link to each other with data processing system respectively, and data processing system is located the other manual operation station of building site export or entry weighbridge passageway.
A signal indicator light is arranged in front of the portal frame, and the signal indicator light has three indicating colors of a green light, a red light and a yellow light; the signal indicator light is connected with the data processing system through a circuit.
The data processing system comprises a power supply, a signal collector, a signal generator, a multiplexer and a computer; the output end of the penetration type multi-parameter probe is connected with the signal collector after sequentially passing through the multiplexer and the signal generator, and the signal collector is connected with the computer.
The penetration type multi-parameter probe comprises a conical head, a load sensor, an insulated PEEK bar material, a stainless steel nail, a high-strength stainless steel bar, a TDR electrode, a probe rod, a coaxial cable and a BNC joint; the probe rod is internally sleeved with an insulating PEEK bar, the top end of the probe rod is provided with a BNC joint which is used as the output end of the penetration type multi-parameter probe, the BNC joint is electrically connected with the upper end of a coaxial cable arranged in the probe rod, and the lower end of the coaxial cable is inserted into an opening at the top end of the insulating PEEK bar; the bottom end of the insulated PEEK bar is provided with a hole and a conical head, a load sensor is arranged in the bottom of the insulated PEEK bar through a load sensor bracket, and the lower end of the load sensor is fixedly connected with the conical head; the insulating PEEK bar is hollow and is provided with a high-strength stainless steel bar, and the lower end of the high-strength stainless steel bar is connected with the load sensor bracket; insulating PEEK rod periphery is enclosed and is equipped with four TDR electrodes along the circumference, and every TDR electrode all arranges along the axial, and TDR electrode upper end and lower extreme all pass through stainless steel nail fixed connection in insulating PEEK rod outer wall, and the stainless steel nail of TDR electrode upper end passes TDR electrode self, the lower extreme of being connected to coaxial cable behind the insulating PEEK rod lateral wall.
The high-strength stainless steel rod is made of martensitic stainless steel, and the expected penetration depth is as follows: 30 m.
Secondly, a method for rapidly obtaining the engineering property and the pollution property of the muck comprises the following steps:
step one, driving a muck transport vehicle on a transit line to a position below a portal frame, keeping a signal indicator lamp yellow, meaning 'during detection', controlling a high-definition camera to shoot the muck appearance in the muck transport vehicle through a signal collector in a data processing system, and immediately transmitting a shot picture back to the data processing system;
secondly, driving the injection type multi-parameter probe to descend and insert into the slag in the slag transport vehicle through the electric lifting system;
in the process of inserting the penetration type multi-parameter probe into the slag soil, a conical head of the penetration type multi-parameter probe bears the penetration resistance of a conical tip and transmits force to a load sensor, the load sensor converts a force signal into an electric signal and transmits the electric signal to a signal collector in a data processing system, and the signal collector obtains a conical index test result according to the electric signal processing and transmits the conical index test result to a computer in the form of a digital signal and displays the conical index test result;
in the third step, the first step is,
when the penetration type multi-parameter probe is completely descended to be positioned in the slag soil, the signal collector in the data processing system controls the signal generator to emit electromagnetic waves, the electromagnetic waves are transmitted to the upper end of a TDR electrode on the penetration type multi-parameter probe along a coaxial cable and a stainless steel nail, the electromagnetic waves are transmitted to the lower end of the TDR electrode through the TDR electrode in the axial direction to generate signal reflection, the reflected signals are returned to the signal collector through the original path, namely are sequentially transmitted back to the signal collector through the TDR electrode in the axial direction, the stainless steel nail and the signal generator, and the dielectric constant epsilon of the slag soil is obtained through the processing of the signal collectorsoilWith electrical conductivity ECsoilAccording to the dielectric constant ε of the mucksoilWith electrical conductivity ECsoilThen the measured value EC of the conductivity of the slag soil pore water is obtained through calculationwaterAnd estimated upper limit value EC of conductivitywater,maxThe estimated lower limit value EC of the conductivitywater,min；
The fourth step, signal acquisition in the data processing systemConductivity measurement EC of the soil pore water by the vesselwaterAnd (4) carrying out numerical judgment:
when the conductivity measurement ECwaterWhen the pollution threshold value is exceeded, the muck is considered to be polluted, and the signal collector controls the signal indicator lamp to be switched from yellow to red in specific implementation, which means pollution;
when the conductivity measurement ECwaterWhen the pollution threshold value is not exceeded, the muck is considered to be not polluted, and the signal collector controls the signal indicator lamp to be switched from yellow to green in specific implementation, which means 'pollution-free'.
In the third step, the dielectric constant epsilon of the dregs is determinedsoilWith electrical conductivity ECsoilThen the measured value EC of the conductivity of the slag soil pore water is obtained through calculationwaterAnd estimated upper limit value EC of conductivitywater,maxThe estimated lower limit value EC of the conductivitywater,minThe method specifically comprises the following steps:
the dielectric constant epsilon acquired by a signal acquisition unit in the data processing system through five penetration multi-parameter probes is obtained according to the following formulasoilWith electrical conductivity ECsoilSubstituting to obtain the conductivity measurement value EC of the muck pore water measured by the respective penetration type multi-parameter probeswater：
In the formula, epsilonsThe dielectric constant of the soil particles is generally 2-5; epsilonwThe dielectric constant of water is generally 80; epsilonaThe dielectric constant of air is generally 1; EC (EC)surfaceThe surface conductivity of the soil particles is specifically implemented as a fixed value and can be obtained through a calibration test; a. b, h, m and k are respectively a first parameter, a second parameter, a third parameter, a fourth parameter and a fifth parameter, and can be obtained by test calibration;
then according to the following formula, the dielectric constant epsilon acquired by the signal acquisition unit in the data processing system through the five penetration type multi-parameter probessoilWith electrical conductivity ECsoilAre substituted to obtain eachThe conductivity of the muck pore water measured by the injection type multi-parameter probe is estimated to be an upper limit value ECwater,maxAnd estimated lower limit value EC of conductivitywater,min：
Then according to the conductivity measured values EC correspondingly obtained by the five penetration type multi-parameter probes through the processwaterAn estimated upper limit value EC of the conductivitywater,maxAnd estimated lower limit value EC of conductivitywater,minPerforming an averaging calculation to obtain a final conductivity measurement ECwaterAn estimated upper limit value EC of the conductivitywater,maxAnd estimated lower limit value EC of conductivitywater,min。
The invention can utilize the conical head on the probe to measure the conical index, and characterize the engineering result of the muck; and (3) calculating and measuring the dielectric constant and the conductivity by using a TDR probe on the probe so as to represent the pollution result of the muck.
According to the method, the measured dielectric constant and conductivity of the residue soil are substituted into a residue soil ionic type pollution evaluation method to calculate and obtain a residue soil ionic type pollution result, and the residue soil pollution can be judged quickly and accurately.
The system is erected at an exit of a construction site or an entrance weighbridge channel of a muck transfer wharf through a portal frame, an electric lifting system is used for controlling an injection type multi-parameter probe to measure parameters such as a conical index, a dielectric constant and conductivity of engineering muck in a muck transport truck, a high-definition camera is used for recording the surface layer condition of the muck, the information is transmitted back to a data processing system through respective circuits, the data processing system analyzes the detection result of the conical index, judges the engineering performance of the engineering muck, substitutes the dielectric constant and the conductivity of the muck into calculation to evaluate the muck ionic pollution, further judges the pollution performance of the muck, the judgment result is fed back to a truck driver in a signal indicator lamp mode, and the driver drives into a designated area according to an instruction to realize efficient and intelligent supervision of the muck transport process.
The invention has high automation degree, and an operator can conveniently process and analyze the data through a friendly computer operation panel, thereby providing an important technical reference basis for resource recycling of the engineering muck and improving the overall process control level of the engineering muck quality.
The invention has the beneficial effects that:
according to the method, engineering muck in the transport truck is detected at the exit of a construction site or the entrance of a medium-to-medium conversion head through the injection type multi-parameter probe to obtain 3 parameters of the cone index, the dielectric constant and the conductivity, and the muck pollution condition is judged by combining a pollution parameter result according to a muck ionic pollution assessment method, so that the engineering and pollution rapid screening in a muck transport link is realized, the normal transportation of the muck is not interfered in the whole detection process, the accuracy and the reliability of the detection result are ensured, a complicated sampling detection process is avoided, and the management and control efficiency is improved.
The high-definition camera is combined to shoot the surface of the muck in a live way, so that an intuitive image of the detected soil sample is provided, and an operator is assisted to make more comprehensive judgment on the muck by referring to the apparent condition; in addition, the investigation results of the probe and the camera can be transmitted back to the data processing system through respective circuits in real time, the detection result of the residue soil of the whole truck is obtained on a software interface at the first time, and a signal indicator lamp is used for giving an instruction to a truck driver, so that the intelligent monitoring of residue soil transportation is realized, and a large amount of data resources are provided for resource recycling of engineering residue soil; an operator can control the corresponding probes to detect through the specific electric lifting system, and can also arrange and combine different probes to simultaneously detect the muck at multiple points, so that the overall operation flexibility of the system is improved.
Compared with the traditional sampling detection means, the method is more efficient, and has the advantages of instant data and convenient operation; compared with the existing geophysical exploration technology, the method realizes the simultaneous determination of the engineering parameter result and the pollution parameter result, and is more intelligent.
In summary, the invention adopts the penetration type multi-parameter probe to obtain the detection data of the engineering and the pollution of the slag soil, the measured conical index is used for representing the engineering of the slag soil, the measured dielectric constant and the measured conductivity are used for obtaining the ionic pollution degree of the slag soil through calculation and analysis, the pollution of the slag soil is rapidly and accurately judged, the automation degree is high, and the high-efficiency intelligent supervision of the quality of the slag soil in the transportation process is realized.
Drawings
FIG. 1 is an overall workflow diagram of the system of the present invention;
FIG. 2 is a drawing of a configuration of a penetration multi-parameter probe;
FIG. 3 is a diagram of electrical connections for a data processing system to collect probe data;
FIG. 4 is a TDR measurement waveform;
fig. 5 is a graph of typical results of cone index testing.
In the figure, a penetration type multi-parameter probe 1, a portal frame 2, an electric lifting system 3, a data processing system 4, a high-definition camera 5, a signal indicator lamp 6, a conical head 7, a load sensor 8, a load sensor bracket 9, an insulating PEEK rod material 10, a stainless steel nail 11, a high-strength stainless steel rod 12, a TDR electrode 13, a probe rod 14, a coaxial cable 15 and a BNC joint 16 are arranged; a power supply 17, a signal collector 18, a signal generator 19, a multiplexer 20 and a computer 21.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, the embodied system comprises a penetration type multi-parameter probe 1, a portal frame 2, an electric lifting system 3, a high-definition camera 5 and a data processing system 4; the injection type multi-parameter probe 1 is arranged on a portal frame 2 of an entrance wagon balance channel at an exit of a construction site or a muck transfer wharf, and the portal frame 2 is a channel frame through which a muck transport vehicle passes; the five penetration type multi-parameter probes 1 are arranged at the top of the portal frame 2 through respective electric lifting systems 3, the installation height of the penetration type multi-parameter probes 1 is higher than the vehicle height of the slag transport vehicle, and one of the five penetration type multi-parameter probes 1 is positioned at the center, and four penetration type multi-parameter probes 1 are radially distributed at the periphery; the portal frame 2 is provided with five electric lifting systems 3, the electric lifting systems 3 control the probe to ascend and descend, each electric lifting system 3 independently controls one penetration type multi-parameter probe 1, and the high-definition camera 5 is arranged at the lower end of a longitudinal beam of the portal frame 2; injection type multi-parameter probe 1, electric lift system 3, high definition digtal camera 5 link to each other with data processing system 4 through respective circuit respectively, and data processing system 4 is located the other manual operation station of building site export or entry weighbridge passageway.
A signal indicator light 6 is arranged in front of the door type frame 2, and the signal indicator light 6 has three indicating colors of a green light, a red light and a yellow light; the signal indicator lamp 6 is connected with the data processing system 4 through a circuit, and the computer 21 in the data processing system 4 controls the light switching according to the detection data in the signal collector 18.
As shown in fig. 3, the data processing system 4 includes a power supply 17, a signal collector 18, a signal generator 19, a multiplexer 20, and a computer 21; the signal collector 18 is connected with the power supply 17, the power supply 17 supplies power, the output end of the penetration type multi-parameter probe 1 is connected with the signal collector 18 after sequentially passing through the multiplexer 20 and the signal generator 19, and the signal collector 18 is connected with the computer 21.
As shown in fig. 2, the penetration type multi-parameter probe 1 comprises a conical head 7, a load sensor 8, an insulating PEEK bar material 10, a stainless steel nail 11, a high-strength stainless steel rod 12, a TDR electrode 13, a probe rod 14, a coaxial cable 15 and a BNC joint 16; an insulating PEEK bar material 10 is sleeved in the probe rod 14, the top end of the probe rod 14 is provided with a BNC joint 16, the BNC joint 16 is used as the output end of the penetration type multi-parameter probe 1, the BNC joint 16 is electrically connected with the upper end of a coaxial cable 15 arranged in the probe rod 14, and the lower end of the coaxial cable 15 is inserted into an opening at the top end of the insulating PEEK bar material 10; the bottom end of an insulated PEEK bar 10 is provided with a hole and a conical head 7, a load sensor 8 is arranged in the bottom of the insulated PEEK bar 10 through a load sensor bracket 9, and the lower end of the load sensor 8 is fixedly connected with the conical head 7; the insulating PEEK bar material 10 is hollow and is provided with a high-strength stainless steel bar 12, and the lower end of the high-strength stainless steel bar 12 is connected with the load sensor bracket 9; insulating PEEK rod 10 periphery is enclosed and is equipped with four TDR electrodes 13 along the circumference, every TDR electrode 13 all arranges along the axial, TDR electrode 13 upper end and lower extreme all pass through 11 fixed connection in insulating PEEK rod 10 outer walls of stainless steel nail, the stainless steel nail 11 of TDR electrode 13 lower extreme passes TDR electrode 13 self, fixed insertion is connected to high strength stainless steel stick 12 behind the insulating PEEK rod 10 lateral wall, the stainless steel nail 11 of TDR electrode 13 upper end passes TDR electrode 13 self, the lower extreme of being connected to coaxial cable 15 behind the insulating PEEK rod 10 lateral wall. The output wires of the load cell 8 are connected to a coaxial cable 15 via transmission lines running inside the insulating PEEK rod 10, and the TDR electrodes 13 are connected to the coaxial cable 15 via stainless nails 11.
During drilling, the cone tip resistance is converted into an electric signal through the load sensor and is transmitted to the data processing system in a wired transmission mode. Among the TDR detection module, four insulating PEEK rod 10 side four inlayed TDR electrodes 13 are key detection component, and four electrodes are fixed at insulating PEEK rod tail end in addition steel nail 11, utilize coaxial cable's inner conductor 17 and weaving layer 19 respectively two sets of steel nails that the welding position is relative to form in the medium electric potential field around guaranteeing. In addition, a high-strength stainless steel rod 12 is added in the probe to increase the strength of the probe and improve the depth application range of the probe.
The method can realize the quick acquisition of the engineering muck engineering parameter result and the pollution parameter result, and can be used for guiding the muck transport truck to run in real time and intelligently monitoring and processing the whole muck transport link.
The implementation of the invention needs to acquire the dielectric constant epsilon of the muck acquired by a signal acquisition unit in a data processing systemsoilWith electrical conductivity ECsoilObtained by performing the following calculation:
as shown in fig. 4, the time difference Δ t between the midpoints M, N of the reflected waveforms in the signals collected by the signal collector is substituted into the following formula to calculate and obtain the dielectric constant ∈ of the mucksoil：
Wherein c is the speed of light (3X 10)8m/s); l is the axial length of the TDR electrode.
As shown in FIG. 4, the initial voltage V according to the acquired TDR reflection waveform0And a regulated voltage V∞Substituting the formula into the formula to calculate and obtain the residue soil conductivity ECsoil：
In the formula, C is a constant parameter of the probe and is obtained by calibration.
In the following, the use of the present invention will be described in detail with reference to two embodiments, and those skilled in the art will connect the above components, write the above-mentioned method for evaluating the ionic contamination of the muck into the signal collector through the programming language, and obtain the result of the related muck parameters according to the following description, and distribute the muck transport stream.
Firstly, determining the central point of a longitudinal beam of the portal frame, respectively arranging penetration type TDR fixed points on two cross beams of the frame in a symmetrical distribution mode, and sequentially numbering each penetration type TDR probe as A, B, C, D and E according to the driving direction as shown in a probe distribution array of figure 1. In the process of implementing penetration, a specific probe can be controlled to implement single penetration detection, or different probes can be arranged and combined to implement multi-point simultaneous detection on the muck, the following two embodiments respectively describe methods for acquiring engineering muck engineering parameter results and pollution parameter results by controlling the probe C to operate independently, and the operation process of the probe is shown in fig. 1. The method comprises the following steps of intelligently detecting the engineering muck, and realizing the feedback of detection information and the condition of transporting vehicles.
The first embodiment is as follows:
(1) when the transport truck travels to a site exit or a mid-transfer joint entrance wagon tunnel, the signal indicator light remains yellow, meaning "in detection". The high-definition camera shoots the appearance of the muck, the picture is transmitted back to the data processing system and is displayed and filed in the computer, and an operator can make visual prejudgment on the soil category of the muck according to the high-definition picture.
(2) An operator drives the penetration type multi-parameter probe to descend through the electric lifting system to drill the dregs in the carriage, and meanwhile, the cone index measuring module starts a working recording state. In the process of descending the probe, the cone index measuring module keeps a data detection and recording state, the cone tip resistance of the muck in the whole drilling process can be converted into an electric signal through the load sensor, the electric signal is converted into a digital signal to be automatically recorded in the cache, the CI value of the cone index is automatically set to be recorded every 2.5cm, after the probe is completely penetrated, the work of the cone index measuring module is stopped, the cone index test result in the whole cache is transmitted to a computer of a data processing system through a circuit, the result shown in figure 5 is formed, and the stable cone index of the muck is judged to be about 400 kPa.
(3) When the probe is lowered to the inside of the muck completely, the cone index measuring process is completed, the detected data result is uploaded to a big data platform, engineers and related technicians can log on the platform, and the engineering classification is carried out on the soil by referring to the detected muck engineering parameter result so as to select a proper recycling mode or a proper processing technology to meet engineering requirements. If the muck is gravels or sandy soil with better engineering properties, a carrying vehicle can be instructed to drive into a planned muck area with 'excellent engineering properties', and the muck is used as foundation soil or landfill soil to be uniformly transported and processed; if the muck is cohesive soil or mucky soil with poor engineering properties, a carrying vehicle can be instructed to drive into a designated muck area with poor engineering properties, and appropriate soil treatment technology is arranged for uniform transportation and treatment.
Example two:
(1) when the transport truck travels to a site exit or a mid-transfer joint entrance wagon tunnel, the signal indicator light remains yellow, meaning "in detection". The high-definition camera shoots the appearance of the muck, the picture is transmitted back to the data processing system and is displayed and filed in the computer, and an operator can make visual prejudgment on the soil category of the muck according to the high-definition picture.
(2) An operator drives the penetration type multi-parameter probe to descend through the electric lifting system to drill the slag soil in the carriage, the engineering test in the first embodiment is completed, and details are not repeated.
(3) When the probe is completely descended into the muck, an operator can click an 'on-off' button in a software operation interface through a computer, and the Boolean indicator lamp is switched from an 'off' state to an 'on' state. At this time, the signal collector controls the signal generator to emit electromagnetic waves, the electromagnetic waves can propagate through the TDR electrode along the coaxial cable, when the propagation medium is changed, the electromagnetic waves generate signal reflection, and the reflected waveform is as shown in fig. 4.
After an algorithm compiled according to the muck ionic pollution assessment method is led into a data acquisition unit, the obtained muck dielectric constant epsilonsoil20.5146 and conductivity ECsoilSubstituting 14.3mS/m into the following formula to obtain the pore water conductivity measurement EC of the dregswater：
In the formula, epsilonsTaking the dielectric constant of the soil particles to be 3.63; epsilonwTaking 80 as the dielectric constant of water; epsilonaTaking 1 as the dielectric constant of air; EC (EC)surfaceThe surface conductance of the soil particles is a fixed value, and 3.46 is taken; a. b, h, m and k are all calculation parameters and are obtained by test calibration, and 0.1370, -0.1735, 2.981, 1.841 and 0.369 are respectively taken.
Then the dielectric constant epsilon of the residue soil is measuredsoilWith electrical conductivity ECsoilSubstituting the formula to obtain the estimated upper limit value EC of the conductivity of the muck pore waterwater,maxWith a lower limit value ECwater,min：
The results of "dielectric constant of soil", "volume water content of soil", "conductivity of soil", "measured value of conductivity of pore water", "estimated upper limit value of conductivity of pore water", "estimated lower limit value of conductivity of pore water" are as follows:
because the pollutant can improve the conductivity of the pore water of the muck, the pollution property of the muck can be judged by setting a certain threshold value of the conductivity of the pore water as an alarm limit. When the conductivity of the pore water exceeds the alarm limit, the algorithm controls a Boolean element 'alarm' to be lightened through simple logic operation, and meanwhile, a signal indicator lamp is switched from yellow to red, which means that the state of the muck is judged to be 'polluted'; when the pore water conductivity does not exceed the alarm limit, the boolean element "alarm" will not light, while the signaling light switches from yellow to green, meaning that the muck status is determined to be "uncontaminated". For the present embodiment, the alarm limit is set to 383mS/m (0.030 mol/LCuSO)4Solution concentration conductivity) due to 66.78mS/m<383mS/m, therefore, the dregs are pollution-free, and the signal lamp is switched to green. After the indicator light is switched, an operator controls the probe to lift through the electric lifting system, and the probe is pulled out of the muck.
(4) According to the instruction, if the muck is in a pollution state, a truck driver drives to a sampling area to be detected and waits for further sampling detection; if the muck is in an 'uncontaminated' state, the muck can be driven out of the construction site or driven to a cargo ship berth of a wharf, the muck is unloaded to the cargo ship, and the muck is transported to the next link. Therefore, the intelligent monitoring and feedback of the engineering muck transportation link are realized.
(5) After the vehicle to be detected is driven out of the construction site or enters the transfer wharf, an operator can click an alarm control switch on an operation interface of the system software, the control signal indicator light is switched from red to green to yellow, namely, the state of the vehicle returns to the state of detection, and the next vehicle to be detected is driven in. After a detection period is finished, the result of the pollution detection data is uploaded to a big data system, and relevant data can guide sampling detection work of the muck in a to-be-detected sampling area, so that orderly implementation of resource recycling of engineering muck is ensured.
Claims (1)
1. A method for rapidly obtaining the engineering property and the pollution property of dregs is characterized in that: the method adopts the following intelligent detection system, wherein the intelligent detection system comprises an injection type multi-parameter probe (1), a portal frame (2), an electric lifting system (3), a high-definition camera (5) and a data processing system (4); the system comprises penetration type multi-parameter probes (1), a gantry frame (2) of an entrance wagon balance channel of a construction site exit or a muck transfer wharf, five penetration type multi-parameter probes (1) are arranged at the top of the gantry frame (2) through respective electric lifting systems (3), and one of the five penetration type multi-parameter probes (1) is positioned at the center, and four penetration type multi-parameter probes are radially distributed around; the gate-type frame (2) is provided with five electric lifting systems (3), the electric lifting systems (3) are used for controlling the penetration type multi-parameter probes (1) to ascend and descend, each electric lifting system (3) is used for independently controlling one penetration type multi-parameter probe (1), and the high-definition camera (5) is installed at the lower end of a longitudinal beam of the gate-type frame (2); the injection type multi-parameter probe (1), the electric lifting system (3) and the high-definition camera (5) are respectively connected with the data processing system (4), and the data processing system (4) is positioned in a manual operation station beside an entrance weighbridge channel of a construction site outlet or a muck transfer terminal;
the method comprises the following steps:
firstly, a muck transport vehicle on a transit line drives under a portal frame (2), a high-definition camera (5) is controlled by a signal collector (18) in a data processing system (4) to shoot the appearance of muck in the muck transport vehicle, and a shot picture is immediately transmitted back to the data processing system (4);
secondly, driving the injection type multi-parameter probe (1) to descend and insert into the slag in the slag transport vehicle through the electric lifting system (3);
in the process that the penetration type multi-parameter probe (1) is inserted into the slag soil, a conical head (7) of the penetration type multi-parameter probe (1) bears the penetration resistance of a conical tip and transmits force to a load sensor (8), the load sensor (8) converts a force signal into an electric signal and transmits the electric signal to a signal collector (18) in a data processing system (4), and the signal collector (18) obtains a conical index test result according to the electric signal processing and transmits the conical index test result to a computer (21) as a digital signal and displays the conical index test result;
thirdly, when the penetration type multi-parameter probe (1) is completely descended to be positioned in the slag soil, a signal collector (18) in a data processing system (4) is used for controlling a signal generator (19) to emit electromagnetic waves, the electromagnetic waves are transmitted to the upper end of a TDR electrode (13) on the penetration type multi-parameter probe (1) along a coaxial cable (15) and a stainless steel nail (11), the electromagnetic waves are axially transmitted to the lower end of the TDR electrode (13) through the TDR electrode (13) to generate signal reflection, the reflected signals are returned to the signal collector (18) in the original path, the dielectric constant epsilon soil and the conductivity ECsoil are obtained through processing of the signal collector (18), and the conductivity measured value ECwater and the conductivity estimated upper limit value ECwater, max and the conductivity estimated lower limit value ECwater, min of the slag soil pore water are obtained through recalculation according to the dielectric constant epsilon soil and the conductivity ECsoil; the method specifically comprises the following steps:
substituting the dielectric constant epsilon soil and the conductivity ECsoil acquired by a signal acquisition unit (18) in the data processing system (4) through five penetration multi-parameter probes (1) into a measurement value ECwater of the conductivity of the muck pore water measured by each penetration multi-parameter probe (1) according to the following formula:
wherein ε s represents the dielectric constant of the soil particles; ε w is the dielectric constant of water; ε a is the dielectric constant of air; ECsurface is the surface conductance of the soil particles; a. b, h, m and k are respectively a first parameter, a second parameter, a third parameter, a fourth parameter and a fifth parameter;
and substituting the dielectric constant epsilon soil and the conductivity ECsoil acquired by the signal acquisition unit (18) in the data processing system (4) through the five penetration multi-parameter probes (1) according to the following formula to obtain the conductivity estimation upper limit value ECwater, max and the conductivity estimation lower limit value ECwater, min of the muck pore water measured by the respective penetration multi-parameter probes (1):
then according to the conductivity measured value ECwater, the conductivity estimation upper limit value ECwater, max and the conductivity estimation lower limit value ECwater, min which are respectively and correspondingly obtained by the five penetration type multi-parameter probes (1) through the processes, carrying out averaging calculation to obtain the final conductivity measured value ECwater, the conductivity estimation upper limit value ECwater, max and the conductivity estimation lower limit value ECwater, min;
fourthly, carrying out numerical judgment on the conductivity measurement value ECwater of the slag soil pore water:
when the measured value ECwater of the conductivity exceeds a preset pollution threshold value, considering that the muck is polluted;
and when the measured conductivity value ECwater does not exceed a preset pollution threshold value, the muck is considered to be not polluted.
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| CN112851225B (en) * | 2021-03-26 | 2021-11-12 | 河海大学 | Environment-friendly treatment method for powdery clay in shield synchronous grouting |
| CN113189144A (en) * | 2021-04-23 | 2021-07-30 | 浙江绿农生态环境有限公司 | Soil pollution detection device based on TDR sensor |
| CN113390926B (en) * | 2021-06-04 | 2022-05-31 | 浙江大学 | Muck quality grading and digestion treatment method based on cone index and conductivity |
| CN113899406B (en) * | 2021-10-26 | 2022-07-19 | 浙江大学 | Pollution detection method of soil multi-pollutant identification probe based on multispectral and time domain reflection |
| CN114215035A (en) * | 2021-12-23 | 2022-03-22 | 同济大学 | Static sounding probe combined with TDR technology, detection system and measurement method |
| CN114713621A (en) * | 2022-04-01 | 2022-07-08 | 上海申环环境工程有限公司 | Automatic change meticulous reseparation device of heavy metal contaminated soil and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW587174B (en) * | 2003-05-15 | 2004-05-11 | Univ Nat Chiao Tung | Time-domain reflective cone penetration device |
| CN1815228A (en) * | 2005-04-05 | 2006-08-09 | 中国农业大学 | Composite sensor for synchronous real-time measuring three parameters and measuring apparatus |
| CN103116189A (en) * | 2013-01-21 | 2013-05-22 | 浙江大学 | In-situ continuous penetrating probe used in non-aqueous phase liquids (NAPLs) polluted sandy soil field investigation |
| CN106994948A (en) * | 2017-05-15 | 2017-08-01 | 南京云计趟信息技术有限公司 | A kind of dregs car-mounted terminal total management system |
| CN206593738U (en) * | 2017-04-14 | 2017-10-27 | 湖南万通科技股份有限公司 | A kind of self-measuring device |
-
2020
- 2020-06-17 CN CN202010553845.9A patent/CN111965221B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW587174B (en) * | 2003-05-15 | 2004-05-11 | Univ Nat Chiao Tung | Time-domain reflective cone penetration device |
| CN1815228A (en) * | 2005-04-05 | 2006-08-09 | 中国农业大学 | Composite sensor for synchronous real-time measuring three parameters and measuring apparatus |
| CN103116189A (en) * | 2013-01-21 | 2013-05-22 | 浙江大学 | In-situ continuous penetrating probe used in non-aqueous phase liquids (NAPLs) polluted sandy soil field investigation |
| CN206593738U (en) * | 2017-04-14 | 2017-10-27 | 湖南万通科技股份有限公司 | A kind of self-measuring device |
| CN106994948A (en) * | 2017-05-15 | 2017-08-01 | 南京云计趟信息技术有限公司 | A kind of dregs car-mounted terminal total management system |
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