152 results about "Soil test" patented technology

The invention belongs to the field of geotechnical engineering and engineering geological information modeling, and relates to a stratum-parameter coupling randomness three-dimensional random field modeling and shield construction ground surface settlement rapid prediction method and device based on multi-source data fusion. According to the method, a three-dimensional joint random field acting on stratum types and rock-soil key physical property parameters at the same time can be constructed under the joint constraint of multi-source data such as drilling, geophysical prospecting, geotechnical tests and terrains, and a calibrated, explainable and updatable geological section automatic generation and uncertainty quantification channel is formed; on the premise that geological rationality is guaranteed, section geometry and parameter distribution under the conditions of complex structures and lateral phase change are restored robustly, the accuracy, consistency and interpretability of the three-dimensional geological section are remarkably improved, and a combined uncertainty result which can be directly used for rapid prediction and risk assessment of shield construction settlement is output. The technical problems that a geological section generated by an existing method is not accurate enough, uncertainty is difficult to quantify, and the extrapolation capacity of a complex scene is weak are solved.

The invention discloses a soil nitrogen leaching capacity monitoring method based on a frequency domain reflectometry, and relates to the technical field of soil water environment monitoring, in particular to a nitrogen leaching online monitoring method based on the frequency domain reflectometry (FDR), the Darcy law and a Van Genuchten (VG) model. And a monitoring method with high precision and sensitivity, multi-parameter synchronous detection and low cost is provided for the soil nitrogen leaching capacity. Comprising the following steps: 1, collecting and pretreating a soil sample; 2, placing the treated soil sample in a soil experiment cylinder; 3, inserting the multi-parameter sensors into the soil experiment cylinder in a layered manner; 4, 1000 ml of water is injected, and data acquisition is carried out; and 5, realizing soil nitrogen leaching capacity monitoring in combination with a Darcy law and a VG model.

The invention discloses a visual detection test method for damage cracks of a solidified soil test piece, and particularly relates to the technical field of geotechnical engineering material detection. The method comprises the following steps: doping fluorescence labeling particles in a solidified soil test piece, and applying periodic load to induce crack formation after curing and forming; synchronously exciting fluorescent particles through an ultraviolet excitation light source, and collecting a short-wave fluorescence response image sequence; inputting the image sequence into a deep residual neural network model, identifying a nonlinear enhancement region of a fluorescence signal, and deducing a crack initiation position and a propagation path; constructing a three-dimensional dynamic model of crack evolution in combination with an image space reconstruction algorithm and time sequence comparison, extracting indexes such as a crack propagation rate, a bending angle and crack density, performing comparative analysis on the indexes and initial parameters of a material, evaluating a microstructure damage development mechanism, and outputting a visual damage evolution result; the method provided by the invention can realize high-precision, non-destructive and dynamic detection of the fine cracks in the solidified soil, and has the advantages of high identification sensitivity, strong modeling precision and good engineering adaptability.

The invention relates to the technical field of geotechnical engineering monitoring, in particular to a soil erosion and particle migration prediction method and system based on acoustic emission monitoring, and the method comprises the following steps: obtaining a soil mass ratio parameter, and preparing a soil sample based on the soil mass ratio parameter to obtain a test soil sample; constructing a multi-field coupling test mechanism to perform a multi-field coupling soil body test on the test soil sample; establishing a soil sample data acquisition device to obtain soil sample monitoring data in the multi-field coupling soil body test process; obtaining acoustic emission characteristic parameters of the test soil body according to the soil sample monitoring data, and establishing a multivariate nonlinear regression model; and constructing a soil body prediction model to realize prediction of soil body erosion and particle migration. Through fusion of multi-field coupling monitoring and machine learning, limitation of a traditional empirical model is broken through, high-precision dynamic prediction of soil erosion and particle migration is realized, a scientific basis is provided for stability evaluation of roadbed engineering, and prediction reliability and engineering applicability are remarkably improved.

The invention discloses a soil column porosity dynamic inversion system and method and a sensor array structure, and belongs to the technical field of environmental soil tests. The system comprises a test soil column system; the acoustic monitoring module is used for acquiring ultrasonic travel time and amplitude information in the soil column; the resistivity monitoring module is used for acquiring resistivity information in the soil column; and the data processing host receives data of the acoustic monitoring module and the resistivity monitoring module, executes a joint inversion algorithm based on a rock physical coupling model, and dynamically inverts spatial distribution and time evolution of the three-dimensional porosity in the soil column by constructing a target function containing ultrasonic travel time / amplitude data and resistivity data at the same time. According to the invention, real-time, three-dimensional, high-resolution and high-adaptability soil column internal structure monitoring can be realized, and solid data support is provided for environmental rock and soil pollution migration mechanism research and restoration effect evaluation.

The invention relates to a heavy metal polluted soil repairing and reinforcing method by utilizing indigenous microorganisms in cooperation with CO2 carbonization, which comprises the following steps: firstly, measuring indexes of heavy metal polluted soil, stacking the heavy metal polluted soil in different areas, and collecting specific polluted soil to test microbial indexes; preparing a polluted soil-urease bacterium suspension, and culturing to form a suspension; preparing an indigenous urease bacterium solution; preparing an indigenous urease bacterium liquid-urea mixed solution; then polluted soil is pre-repaired, a curing agent and the mixed solution are mixed, and particles are prepared and cured; and finally, high-concentration CO2 is introduced for reinforced carbonization repair, and the improved soil meeting the requirements is obtained. According to the method, indigenous microorganisms and CO2 carbonization are fully utilized, the method is especially suitable for repairing and reinforcing heavy metal polluted soil containing lead, copper, zinc and the like, the problems that a traditional solidification and stabilization method is high in energy consumption and poor in economical efficiency, and an existing microorganism mineralization technology is poor in microorganism adaptability and poor in repairing effect are solved, and the method is suitable for large-scale popularization and application. The method has the advantages of simple operation process, economy, effectiveness, low carbon and environmental protection.

The invention relates to the technical field of civil engineering, in particular to a soil test result analysis and prediction method based on big data, which comprises the following steps: S1, collecting multi-dimensional data in a soil test in real time through a preset sensor array; s2, performing data cleaning and preprocessing on the multi-dimensional data acquired in the S1; s3, calculating distance correlation among different geotechnical parameters to extract characteristic variables; s4, dividing the feature data set into a training set and a test set; s5, constructing a soil engineering performance prediction model; s6, optimizing and adjusting a kernel function and a hyper-parameter of the Gaussian process regression model; and S7, performing real-time prediction by using newly collected soil test data. According to the method, the Gaussian process regression algorithm is combined with the big data technology, so that efficient processing, real-time prediction and dynamic feedback of complex geotechnical test data are realized, the precision and reliability of geotechnical performance prediction are improved, and a scientific basis is provided for construction decision making.

The utility model relates to a sampling device for soil testing, which comprises a support, a support table is slidably arranged on the support, a driving part is arranged on the support, the driving part is used for driving the support table to lift, a cutting ring is rotatably arranged at the bottom of the support table and is used for soil sampling, a rotating part is arranged on the support table, and the rotating part is used for rotating the support table. The rotating piece is used for driving the cutting ring to rotate; a bulldozing part is arranged in the cutting ring in a sliding mode, and the bulldozing part is used for pushing out sampled soil in the cutting ring, through automatic lifting and rotating mechanisms, the physical burden of operators is greatly relieved, the sampling efficiency is improved, the rotating cutting ring can more easily cut into the soil, and the sampling time is shortened. Through the cooperative use of the cutting ring and the bulldozing part, the integrity of a soil sample in the sampling and pushing process is ensured, the risk of sample damage is reduced, meanwhile, the operation is more convenient, and the working efficiency is improved.

The application provides an extraterrestrial celestial body soil detection probe, which comprises a shell, a soil collecting structure and a soil testing structure; the soil collecting structure is arranged on the shell; the soil collecting structure comprises a collecting hole and a boss; the boss is arranged on the shell, the top of the boss is higher than the outer surface of the shell, and the collecting hole is connected between the inside and outside of the shell; and the soil testing structure is arranged in the collecting hole. The extraterrestrial celestial body soil detection probe further comprises a heating sheet, a pipe and a volatile component detector; the volatile component detector is arranged in the shell, the heating sheet is attached to the outer wall of the collecting hole, and the collecting hole is connected with the volatile component detector through the pipe. The four soil collecting structures arranged in the circumferential direction of the shell are used to collect soil, and soil physical property analysis is carried out through the soil testing structure, so that the demand for extraterrestrial celestial body soil detection is met, and important data support is provided for planetary science and the like.

The utility model relates to soil detection technical field especially discloses a kind of soil detection dissolving device, hollow rotating disc rotation process drives stirring rod revolution, in the stirring rod rotation process, by the second spur gear of its surface sleeve joint engagement fixed first spur gear, to make stirring rod with the center of dissolving barrel as pivot rotation process, rotation is stirred operation, to increase stirring mixing area, reduce stirring dead point, and the two triangular scrapers of stirring rod two sides installed and the surface of dissolving barrel are attached, through the rotation of stirring rod drive triangular scraper to scrape and clean operation to the inner wall of dissolving barrel, this can effectively prevent soil from adhering on barrel wall when not yet mixed evenly, avoid the problem of insufficient dissolution due to soil adhesion, ensure the smooth progress of entire dissolving process, improve dissolving effect, also help to improve the accuracy of detection result.

The sample injector comprises a sample injector body, an operation pen, a supporting frame, a pressing cylinder and a pushing assembly, the operation pen is arranged on one side of the sample injector body, the supporting frame is fixedly connected to one side of the sample injector body, the operation pen is connected to the top of the supporting frame in a penetrating mode, and the pressing cylinder is fixedly connected to the top of the supporting frame. The top of the operation pen is sleeved with the pressing cylinder, the pushing assembly is arranged on one side of the sample injector body and used for pushing the operation pen, a fixing plate is fixedly connected to one side of the sample injector body, and the fixing plate is used for fixing the position of the pushing assembly. Through the design of the supporting frame, the pressing cylinder and the pushing assembly, the arranged supporting frame is fixed on one side of the sample injector body, an operation pen is inserted into the supporting frame during use, the pushing assembly drives the pressing cylinder to move downwards, and the position of the operation pen is fixed through the supporting frame and the pressing cylinder; and the situation that the operating pen falls off and is damaged is avoided.

The utility model relates to the technical field of rock and soil testing, in particular to a rock and soil oxidation testing box which comprises a testing box body, the testing box body is existing equipment for rock and soil oxidation testing, and the front side of the upper portion of the testing box body is provided with a test sample placing opening. The test box comprises a test box body, and further comprises a door plate, a mounting frame, a placing frame, a filter screen, a fixing frame, a guide rod and a vibration piece, the door plate is hinged to the placing opening of the test box body, the mounting frame is assembled in the test box body, the top of the mounting frame is a frame body provided with a placing groove, and the placing frame is loaded in the placing groove of the mounting frame in a sliding mode. According to the utility model, the mounting frame and the placing frame are additionally arranged in the test box body, and the placing frame is driven by the vibrating piece to carry out vibration screening in the mounting frame, so that soil mixed in rock can be effectively screened, rapid separation of the rock and the soil after test is realized, and compared with manual operation, the test box is more efficient and saves time.

The transparent soil embankment rigid frame pile displacement observation simulation test system comprises a model box, a soil body consolidation mechanism, a rainfall load simulation mechanism, a traffic load simulation mechanism, a light source mechanism, a shooting mechanism and a calculation analysis mechanism. And the settlement and displacement of the transparent soil embankment slope under the action of the composite load can be observed in real time. Wherein the rainfall load module can accurately regulate and control the rainfall intensity and the rainfall capacity; the traffic load module can simulate the size and frequency of a vehicle cyclic load; the laser slicing technology of the light source module and the high-speed imaging technology of the shooting module are combined, and the PIV technology of the calculation and analysis module is matched, so that the dynamic deformation field in the transparent soil can be obtained. The device fills up the blank that an existing transparent soil test lacks real engineering load simulation, provides experimental data closer to reality for research of slope stability, foundation settlement and the like, and has the advantages of being simple in structure, convenient to regulate and control and accurate in observation.

The application discloses an expansive soil free expansion rate and permeability coefficient field test device and method, relates to the technical field of expansive soil test, and aims to solve the problems of non-uniform expansive soil expansion potential discrimination standards and large test data discreteness in the prior art. The device comprises a ring cutter assembly, a water content measuring assembly, a displacement measuring assembly and a water supply assembly. The ring cutter assembly is used for fixing a test soil body; the water content measuring assembly is used for monitoring the water content of the soil body in real time; the displacement measuring assembly is used for recording the surface and deep displacement of the soil body; and the water supply assembly is used for controlling water injection. The test method comprises a test method and a numerical analysis method. The water content and displacement changes of the test soil body are monitored through water injection, the permeability coefficient and the free expansion rate of the soil body are calculated, the water content curve is fitted in combination with numerical analysis, the expansion coefficient and the saturated water content are solved, and finally, the free expansion rate of the soil body is determined, so that the free expansion rate and the permeability coefficient of the expansive soil are rapidly and accurately determined on site, the expansion potential is determined, and a reliable basis is provided for engineering application.

The utility model discloses a multifunctional soil test sample cutting device relates to soil test technical field. The utility model discloses a frame is provided with adjusting mechanism and positioning mechanism on the frame, the adjusting mechanism includes two slide rods no. 1 slidingly penetrating the top of frame. The utility model discloses be provided with adjusting mechanism, manually hold the handle and drive slide rod no. 1 and arc plate no. 1 to move upwards or downwards, so that multiple soil cutters can move vertically upwards or downwards, and then multiple soil cutters sample cutting to soil sample, and before sample cutting, individually twist knob no. 1 and drive threaded rod no. 1 to rotate, under the cooperation of multiple slide rods no. 2, make soil cutter can be close to or away from sample, and then the sample cutting thickness of sample is adjusted, greatly improve the precision and operation flexibility of this soil test sample cutting device, and multiple different shapes of soil cutters make the equipment can adapt to various soil types and test demand.

The utility model discloses a soil test collecting and recording needle, which belongs to the technical field of soil detection, and comprises a recorder, a connecting line is inserted above the recorder, a soil moisture sensor is inserted on one side of the connecting line, a handle is in threaded connection above the soil moisture sensor, and the handle is in threaded connection with the recorder. A sampling needle is installed below the soil moisture sensor, a rubber handle is installed on the inner side of the handle, the bottom of the handle is fixedly connected with a first threaded head, the bottom of the soil moisture sensor is in threaded connection with a second threaded head, and external threads are arranged on the outer surface wall of the sampling needle; the first plug and the second plug at the two ends of the connecting line are inserted into the recorder and the soil moisture sensor respectively, the sampling needle is connected to the lower portion of the mounting head in a threaded mode, then the soil moisture sensor is connected with the first threaded head and the second threaded head in a threaded mode, and the whole structure can be rapidly disassembled and assembled; once a certain structure is damaged, only the damaged structure needs to be replaced.

The invention relates to the technical field of soil testing, and discloses a lateral pressure adjustable expansive soil expansion rate measuring device, which comprises an experiment box, a sample cylinder and a measuring module, symmetrical through holes are formed in the side wall of the sample cylinder, a lateral pressure loading system is correspondingly arranged on the outer side of each through hole, and each lateral pressure loading system comprises a rigid piston head capable of extending into the cylinder, a piston rod, a closed medium pressure cavity and a miniature constant pressure pump; the pump is connected with the pressure cavity through a pipeline, and the piston head is driven to apply adjustable lateral pressure to the sample by accurately feeding and discharging a medium; the measurement module comprises a vertical deformation and lateral pressure measurement system and integrates free expansion and lateral confinement expansion measurement functions; the rigid piston and the water medium are adopted for constant-pressure loading, the structure is simplified, operation is convenient and fast, rapid response and high-stability control over lateral pressure are achieved, the membrane embedding effect is thoroughly eliminated, a multi-stage constraint continuous test can be completed through one-time sample loading, and the test efficiency and data consistency are remarkably improved.

The utility model provides a frozen soil area landslide key part temperature and humidity field long-term dynamic monitoring device, and relates to the technical field of intelligent equipment, and the device comprises a measurement control host which is connected with a first PVC hard pipe and a second PVC hard pipe through a cable; the first PVC hard tube and the second PVC hard tube are respectively provided with a power supply electrode and a measuring electrode; third containing holes are formed in the second PVC hard pipe at intervals of a third preset distance, and a temperature measuring probe is contained in each third containing hole. The corresponding electrodes are supported by the two PVC hard tubes, the temperature measuring probe is buried underground to work for a long time, the water content profile is converted into the resistivity profile based on an indoor soil test, and in-situ dynamic long-term monitoring of the soil water content profile and the temperature of the key part of the landslide is achieved. The device can help to analyze soil freeze-thaw states and daily freeze-thaw cycle processes of different parts of the landslide and moisture infiltration processes of key parts of the landslide under rainfall conditions and freeze-thaw conditions, and is simple in structure, efficient and reliable.

The invention discloses a regional soil difference-oriented medium trace element fertilizer blending control method and system, and relates to the field related to adaptive control, and the method comprises the following steps: obtaining a predetermined grid region; traversing the predetermined coordinates in a regional soil database to obtain a candidate data set; screening the plurality of groups of historical soil detection data by taking predetermined crop information as a constraint to obtain a target data group set; performing optimization analysis by taking the crop situation index as an optimization evaluation index to obtain an optimal data set; constructing a target demand matrix according to the optimal data set, and obtaining a target supply matrix in combination with a predetermined actual measurement matrix of the predetermined grid region; and generating a fertilizer blending scheme of medium trace elements based on the target supply matrix, and performing fertilizer blending control of the predetermined grid region. The technical problem of poor suitability caused by single data dimension and fuzzy evaluation standard in existing medium trace element fertilizer blending control is solved, and the technical effect of improving the fertilizer blending suitability through dynamic matching is achieved.

The invention relates to the technical field of saline soil test devices, and discloses a test device for simulating a natural environment to act on saline soil, comprising: a sample assembly having a first cavity capable of holding a saline soil sample; the rainfall simulation assembly is arranged right above the sample assembly; the irradiation simulation assembly is arranged above the sample assembly; the heating assembly is arranged below the sample assembly; the underground water simulation assembly is provided with a cavity II capable of containing a salt solution, and the bottom of the cavity II is communicated with the bottom of the cavity I; the saline solution in the cavity II can permeate into the salinized soil sample to supplement the salinized soil sample with the saline solution; the monitoring assembly can monitor parameters of the salinized soil sample in the simulation experiment process; and the data acquisition and processing system is electrically connected with the rainfall simulation assembly, the irradiation simulation assembly, the heating assembly, the underground water simulation assembly and the monitoring assembly. According to the test device disclosed by the invention, by simulating various natural environments, the tested test data are more real and effective.

The invention discloses a model system based on a soil frost heaving rule, and the system comprises a soil detection module which comprises a soil temperature measurement unit and a soil cooling unit, and is used for testing the cooling performance of sampled target soil, and building a preliminary linear system model; the model optimization module comprises a data acquisition system, a model test box and a freezing refrigeration box; and the model detection module comprises a temperature sensor, a displacement sensor, a freezing pipe and a liquid separation pipe. The model system is formed according to the site construction environment by proposing the corresponding calculation model, preliminarily collecting the site data, optimizing the target model and finally constructing the model system, and the system has reproducibility according to the calculation model and can deal with soil frost heaving simulation in different construction environments.

The present application relates to geotechnical engineering monitoring technical field, especially soil erosion and particle migration prediction method and system based on acoustic emission monitoring, the method comprises the following steps: obtaining soil quality ratio parameter, preparing test soil sample based on the soil quality ratio parameter; Constructing multi-field coupling test mechanism to carry out multi-field coupling soil test on the test soil sample; Establishing soil sample data acquisition device to obtain soil sample monitoring data in the process of multi-field coupling soil test; According to the soil sample monitoring data, the acoustic emission characteristic parameters of the test soil body are obtained, and a multivariate nonlinear regression model is established; Constructing soil prediction model to realize the prediction of soil erosion and particle migration. The present application breaks through the limitation of traditional experience model by fusing multi-field coupling monitoring and machine learning, realizes high-precision dynamic prediction of soil erosion and particle migration, provides scientific basis for roadbed engineering stability evaluation, and significantly improves prediction reliability and engineering applicability.

The utility model discloses a mountainous region citrus soil testing formulated fertilizer storage device, which relates to the technical field of soil testing formulated fertilizer storage, and comprises a storage device body, the storage device body comprises a storage box, one side of the storage box is provided with a conveying port, the storage box is fixedly connected with a circulation box, the circulation box is fixedly connected with a buffer cylinder, and the buffer cylinder is fixedly connected with the conveying port. The buffering cylinder penetrates through the side wall of the circulating box, the side, away from the circulating box, of the buffering cylinder is fixedly connected with an air conveying pipe, the bottom of the storage box is fixedly connected with a material conveying cylinder, the material conveying cylinder is fixedly connected with a drying box, and the drying box is fixedly connected with the other end of the air conveying pipe. When the drying device is used, the second motor drives air flow to sequentially and circularly pass through the buffer cylinder, the air conveying pipe, the drying box, the material conveying cylinder, the material storage box, the circulating box and the buffer cylinder, the effect of air circulating flowing is achieved, water molecules in the material storage box can be conveniently collected through the drying box, and the drying state in the material storage box is maintained.

A compacting device for coarse-grained soil test blocks relates to a compacting device, wherein a knocking box is placed in the middle of the bottom of a frame, a compacting cylinder is arranged in the knocking box, one side of a swinging ball A contacts one side of a swinging ball B, the other side of the swinging ball B contacts the left end of a slide bar A, one side of a swinging ball C contacts one side of a swinging ball D, and the other side of the swinging ball C contacts the right end of a slide bar B; the present invention places the knocking box in the middle of the bottom of the frame, arranges a compacting cylinder in the knocking box, and two swinging balls are hung on the frame at positions on opposite sides of the knocking box. The four swinging balls use the Newton's pendulum principle to knock on the opposite sides of the compacting cylinder, thereby squeezing the coarse-grained soil and displacing and vibrating the coarse-grained soil to produce the coarse-grained soil test blocks, so that the produced compacts can simulate the influence of the resonance generated by high-speed railways and airports on the settlement of coarse-grained soil in actual use, making the experimental data more accurate.

The invention discloses a grouting body surface roughness calculation method, device and equipment and a product. The grouting body surface roughness calculation method comprises the steps that the porosity and grain composition curve of a to-be-grouted area soil body is obtained; target parameters are extracted from the grain composition curve, and the average grain size of grain groups of different specifications is determined; based on the grain composition curve, a preset coefficient representing a parameter linear relation is obtained through discrete element simulation solution; and based on the target parameter and the porosity, combining with a preset coefficient for quantification to obtain the surface roughness. By means of the method, before grouting construction, the roughness can be rapidly predicted only through conventional soil test data, and high cost, heavy labor and material waste for preparing a large solid grouting body sample can be avoided; according to the method, reliable roughness input parameters are provided for accurately analyzing complex interface mechanical behaviors of the grouting body and the surrounding soil body in the coarse-grained soil, the safety and economical efficiency of engineering design can be improved, and the method can be widely applied to the technical field of electric digital data processing.

The application discloses a kind of vacuum stirring and soil sample preparation integrated intelligent device and method, including stirring device, consolidation sample preparation device, vacuum pumping device, intelligent control system.Stirring device is used to stir soil sample into uniform mud;Consolidation sample preparation device is used to prepare remolded soil sample;Vacuum pumping device ensures that the internal environment of overall test is in vacuum state;Intelligent control system realizes intelligent staged loading to consolidate soil sample in stages.The beneficial effects of the scheme provided by the application are that: by vacuum pumping device, ensure that mud is in vacuum state during stirring and transportation to consolidation sample preparation device, effectively reduce the air content in remolded soil sample, in the process of soil sample consolidation forming, the pore water pressure and effective stress of soil sample are calculated in real time by means of intelligent control system, the degree of consolidation is accurately controlled, the load size is accurately controlled intelligently, automatic staged loading is realized, complete soil sample consolidation settlement curve can be obtained, and soil test is carried out in detail.

The invention belongs to the technical field of mass spectrometry, and particularly relates to an on-line soil detection quadrupole mass spectrometer based on an element analysis technology and an analysis method. The sampling system comprises an automatic sampling mechanical arm moving device, a washing device, a blowing device, a sample cabin, a sealing O ring, a sample transmission mechanism, a laser and a primary reflecting plate, and the analysis system comprises a laser reflecting lens, a transmission lens, an ion source, a mass analyzer, a detector, a vacuum transfer cavity, a vacuum analysis cavity, a mechanical pump, a molecular pump and a control computer. A mass analyzer, an ion source and a transmission lens are arranged in a cavity body of the vacuum transfer cavity, the molecular pump is connected with the vacuum transfer cavity, and the vacuum transfer cavity and the analysis vacuum cavity are two-stage differential systems. Laser and ion source double ionization is adopted to improve the ion yield, interference is reduced in combination with a two-stage differential vacuum system, and the quadrupole mass spectrometer is high in vibration tolerance and suitable for field complex environments such as unmanned farms.

The utility model discloses soil detection dissolving equipment which comprises a shell, a liquid inlet pipe positioned at the upper part of the shell and a liquid outlet pipe positioned at the lower part of the shell, the cover plate is located on the upper portion of a first hole in the upper end of the shell, the motor is fixedly connected to the upper end of the cover plate, the sealing cover is fixedly connected with the output end, stretching into the shell, of the motor, and the first charging barrel is detachably connected with the sealing cover. And a plurality of second holes are uniformly formed in the peripheral wall of the first charging barrel. The device disclosed by the utility model has the advantages that a certain amount of soil to be detected is placed in the cylinder, the first charging barrel and the sealing cover are sealed through the bolt, and the sealing gasket is arranged between the sealing cover and the first charging barrel. The sealing ring is arranged between the sealing cover and the cylinder, so that the sealing performance is effectively ensured; the motor drives the sealing cover and the first charging barrel to rotate, so that the stirring rod rotates to fully dissolve soil in the cylinder, and the cylinder can also separate insoluble stones from a soil solution.

The utility model relates to the civil engineering sampling technical field discloses a soil sample sampling device for soil test, including support shell, the outside fixed connection of support shell has the connection fixed ring, the inside fixed connection of connection fixed ring has the connection fixed column, the inside fixed connection of connection fixed column has the connection mechanism, the outside slide connection of connection mechanism has the push -out mechanism, the connection mechanism includes the drive assembly for driving, the outside fixed connection of drive assembly has the connection sliding block, the outside both sides fixed connection of connection sliding block has connection rotary column no.

The invention discloses a pile foundation buckling behavior intelligent analysis method and system based on a transparent soil model test, and particularly relates to the technical field of engineering parameter intelligent analysis. The method is used for solving the problem that transparent soil test observation information cannot be effectively converted into accurate design parameters due to the fact that simplified representation of a traditional mechanical model is not matched with a real complex constraint form of soil around a pile. The method comprises the following steps: extracting displacement field data of soil around a pile from a transparent soil model test sequence image, and identifying a potential instability path; directly mapping to generate quantitative data representing soil body spatial constraint stiffness distribution according to the spatio-temporal evolution characteristics of the path by utilizing a trained machine learning model; then weak and strengthened constraint areas are identified based on the data, and the constraint contribution degree and the system redundancy improvement potential of each area are quantified through virtual parameter disturbance analysis; and finally, based on the quantitative indexes, pile foundation reinforcement scheme parameters for the weak area are generated, so that intelligence and refinement from test observation to reinforcement design are realized.