278 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 an expansive soil free expansion rate and permeability coefficient field test device and method, relates to the technical field of expansive soil tests, and aims to solve the problems that in the prior art, expansive soil expansion potential judgment standards are not unified, and test data discreteness is large. Comprising a cutting ring assembly, a moisture content measuring assembly, a displacement measuring assembly and a water supply assembly. The cutting ring assembly is used for fixing a test soil body; the moisture content measuring assembly monitors the moisture content of the soil body in real time; the displacement measuring assembly records soil surface and deep displacement; the water supply assembly controls water injection. The test method comprises a test method and a numerical analysis method, the permeability coefficient and the free expansion rate of the soil body are calculated by injecting water and monitoring the moisture content and the displacement change of the test soil body, a moisture content curve is fitted by combining numerical analysis, the expansion coefficient and the saturated moisture content are solved, and the free expansion rate of the soil body is finally determined. The free expansion rate and the permeability coefficient of the expansive soil are rapidly and accurately measured on site, the expansion potential is judged, and a reliable basis is provided for engineering application.

The invention discloses a method for measuring lateral expansive force of expansive soil. The method comprises the following steps: manufacturing a plurality of groups of expansive soil test pieces with the same dry density and initial water content; the atmospheric influence depth is determined, and the overburden pressure of the soil body is determined according to the point positions where the lateral expansive force needs to be calculated in the atmospheric influence depth after the retaining structure is supported; a plurality of overburden pressure lateral confinement loaded expansion rate tests are conducted according to a standard method, and a relational expression among the water content increment, the overburden pressure and the loaded expansion rate is established; by improving a K0 consolidation test, the loaded expansion rate and the lateral expansion force of the soil body in the humidifying process under the action of overburden pressure are measured; substituting the result of the improved K0 consolidation test into the relational expression obtained by the lateral confinement load expansion rate test, and calculating to obtain the water content increment corresponding to the load expansion rate in the soil body humidifying process of the improved K0 consolidation test; and fitting to obtain a relational expression among the lateral expansive force, the overburden pressure and the water content increment. According to the method, the lateral expansion force at different depths behind the rigid retaining structure can be calculated.

The utility model relates to the field of soil pollution investigation, in particular to a soil pollution investigation and detection device. The technical problems that in the using process of the detection device, due to the fact that an ordered placement structure of sampling bottles is not arranged, a user takes the sampling bottles cumbersomely when detecting different soils, automatic sampling cannot be conducted, and the detection efficiency is reduced are solved. According to the technical scheme, the soil pollution investigation and detection device comprises a workbench and further comprises a placement assembly and a sampling assembly. Through the arrangement of the placing assembly, test tube bottles filled with different soils can be orderly placed, the taking convenience is improved, the damping springs play a role in damping and buffering when the soil test tube bottles fall down, the bottoms of the test tube bottles are effectively protected from being impacted, and then the test tube bottles are sampled through the sampling assembly. Left-right, front-back and height adjustment can be automatically carried out, so that different kinds of soil can be conveniently extracted and detected, and a sampling head can conveniently send the obtained soil to a detector.

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 single-column soil moisture content testing method, belongs to the technical field of soil moisture content testing, and solves the problem that an existing soil moisture content detection method cannot accurately prevent geological disasters. According to the method, measurement data including measurement impedance modulus and measurement phase in a monitored soil layer are obtained by utilizing multiple groups of measurement electrodes in a soil test column, and an impedance modulus correlation coefficient and a phase correlation coefficient between the measurement data and calibration data are calculated to obtain a comprehensive correlation coefficient; the calibrated soil moisture content distribution soil layer closest to the monitored soil layer is judged at the same time by combining the impedance modulus and the phase, the calibrated experimental soil layer has higher robustness, and even if the environmental condition changes, the strategy can be quickly adjusted by comparing the calibrated data, so that the continuity and stability of monitoring work are ensured, and the accuracy of monitoring is improved. And an expert can conveniently evaluate an accurate geological disaster early warning level.

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 nondestructive testing method for an internal pore structure of foam light soil, which is characterized by comprising the following steps of: 1, taking a cube foam light soil test piece with the side length of 40mm, placing the maintained test piece on a sample table, scanning around the test piece for a circle by using an X-CT (X-ray computed tomography) scanner, enabling X-rays to penetrate through different layers of the test piece, the detector receives attenuated information of different layers, the information is converted through software and then input into a computer for reconstruction, and a gray level image is obtained; and 2, Image-ProPlus analysis software is adopted to process the gray level image, a threshold value of the gray level image is automatically identified, a WatershedSplit algorithm of the Image-ProPlus analysis software is utilized to segment the automatically identified gray level image again, and then binarization processing is carried out on the segmented image. The method can realize nondestructive testing of the internal porosity, pore size distribution, pore shape factor and average pore size of the foam light soil, and is simple and convenient to operate, accurate in data, visual in result and high in practicability.

The invention relates to the technical field of soil detection, and discloses a soil detection device and application thereof in environmental remediation, the soil detection device comprises a supporting assembly, a soil drilling assembly, a sampling assembly, a detection assembly and a discharging assembly, the sampling assembly can directly conduct crushing treatment on soil to be detected, the timeliness of soil collection is guaranteed, and the detection efficiency is improved; meanwhile, the problem that the detection probe is directly inserted into the soil to cause damage is avoided, the detection assembly is directly inserted into the soil, the accuracy during soil detection is effectively guaranteed, the problem that the detection timeliness is poor after soil collection in the current market is solved, and meanwhile the problem that the probe is directly inserted into the soil to cause damage can be solved. And during soil collection, the discharging assembly can block soil below when the sampling assembly crushes the soil, after soil particles are picked up into the sampling assembly, the soil particles are separated and prevented from falling off, and after soil detection is completed, the discharging assembly is controlled to discharge the soil in the sampling assembly.

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 discloses a method and device for testing moisture migration in the frost heaving and thaw collapse process of fiber cement soil based on low-field nuclear magnetic resonance, and relates to the field of cement soil testing engineering.The method comprises the steps that T2 spectrums of the whole freezing process and the whole thawing process of a fiber cement soil sample are obtained; inverting a three-dimensional moisture distribution diagram of the whole freezing process and the whole melting process of the fiber cement soil sample according to the T2 spectrum; and determining moisture migration conditions of the whole freezing process and the whole melting process of the fiber cement soil sample according to the three-dimensional moisture distribution diagrams of the whole freezing process and the whole melting process of the fiber cement soil sample. According to the method, T2 spectrum data is mapped to a three-dimensional space position on the basis of a nuclear magnetic resonance (NMR) signal gradient positioning technology, and a pixel-level three-dimensional moisture distribution diagram of a fiber cement soil sample is obtained by performing data inversion on a T2 spectrum, so that pixel-level moisture migration conditions in the freezing process and the melting process of the fiber cement soil are visualized.

The invention discloses a geopolymer recycled concrete proportion optimization method and system based on artificial intelligence, and the method comprises the steps: obtaining soil test data and finite element simulation data, determining the neat paste strength fp and the design range of geopolymer components, calculating a deviation coefficient, correcting the finite element simulation data, obtaining a neat paste index library and a mortar index library, and obtaining a geopolymer recycled concrete proportion optimization result. Matching a database to obtain a first mortar design parameter set and a second mortar design parameter set, screening the second mortar design parameter set to obtain a first design formula set, and constructing a geopolymer recycled concrete proportioning optimization model based on artificial intelligence according to the first design formula set, and inputting a to-be-optimized ratio into the geopolymer recycled concrete ratio optimization model to output an optimized ratio. The method not only can improve the ratio optimization speed and effect of the geopolymer recycled concrete, but also has better interpretability, and can be directly applied to a ratio optimization system of the geopolymer recycled concrete.

The utility model discloses a geotechnical test chamber capable of providing super-large counter-force support, relates to the field of underground structures, solves the problem that counter-force provided by a column type counter-force frame is not large enough, and adopts the technical scheme that a tunnel communicated with the outside is arranged on the side wall of a chamber of the geotechnical test chamber capable of providing super-large counter-force support; reinforced concrete linings are arranged on the top, the bottom and the side walls of the chamber, a first bearing plate is arranged on the surface of the lining on the top of the chamber, and the top face of the first bearing plate is fixedly connected with a first anchoring part; two second bearing plates are arranged on the surface of a lining of the side wall of the chamber, two planes corresponding to the two second bearing plates are vertical and parallel to each other, and the faces, back to the chamber, of the two second bearing plates are fixedly connected with second anchoring parts respectively. According to the utility model, the chamber surrounding rock is used as a counter-force foundation of a soil test, and strong counter-force can be provided for vertical pressure and horizontal pressure required by the soil test. The full-graded coarse-grained soil mechanical property test device is used for full-graded coarse-grained soil mechanical property tests.

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 provides an intelligent greenhouse photosynthetic optimization method and system, and the method comprises the steps: carrying out the real-time monitoring of a multi-source sensor network in a greenhouse, and carrying out the deployment of the sensor network in a high-density state; the data are analyzed and processed by using a deep learning technology, an optimal illumination strategy for different crops is generated, and a model is trained by using a large amount of labeled data, so that the optimal illumination strategy required by a specific crop under a given condition can be predicted. According to the invention, accurate monitoring and regulation of environmental parameters in the greenhouse are realized through an accurate algorithm, so that optimal illumination conditions are provided for different crops to improve the growth speed and yield of the crops, the moisture content required by the crops is accurately calculated through an AI algorithm, and a micro-drop irrigation technology is used to directly act on a root area, so that the waste of moisture is reduced, and the crop quality is improved. And according to the growth stage of the crop and the soil test result, the AI algorithm can accurately calculate the mass of the required nutrients, and excessive or insufficient fertilization is avoided.

The invention belongs to the field of sludge utilization, and relates to a method for preparing roadbed filler through solidification and modification of water supply plant sludge. Comprising the following main steps: mud detection: aiming at dewatered sludge of a water supply plant, carrying out mud index detection, analyzing mud characteristics of the sludge, and evaluating feasibility of preparing roadbed filler from the sludge and key of a curing modification technology; sludge conditioning: uniformly mixing dewatered sludge of a water supply plant with a hydration conditioner, carrying out material covering and stacking, and then digging, airing and crushing for later use; curing and modifying: sequentially adding a gel curing agent, high polymer fibers and a resin water-retaining agent into the conditioned sludge, and uniformly mixing to obtain roadbed filler; and filler detection: carrying out environmental index detection and indoor soil test on roadbed filler, and evaluating whether the mechanical properties of the sludge curing modified filler meet the design requirements or not. The method can realize water supply plant sludge solidification modification, improve the sludge bearing ratio and shear strength, reduce the environmental risk of using heavy metals and pathogenic bacteria in sludge building materials, and is beneficial to solving the double dilemma of sludge outlet shortage and road base material shortage in urban development.

The invention discloses a multifunctional testing device for a clay chemical permeation and consolidation test, and belongs to the technical field of rock testing, the device comprises a base, a rigid wall sample cylinder is arranged at the upper part of the base, a cap is arranged at the upper part of the rigid wall sample cylinder, and the wall cavity of the rigid wall sample cylinder is hollow; the temperature control is realized by circulating the circulating liquid of the temperature control module in the wall cavity; the device measures pressure through the pressure measuring module, supplements deionized water through the water supplementing module, and supplements a salt solution through the salt solution supplementing module. By adopting the device disclosed by the invention, proper modules are selected as required during testing, various rock and soil performance tests can be carried out, the testing device has various functions, multiple purposes are realized, and the testing cost is reduced. The rock-soil test method provided by the test device provided by the invention considers many factor indexes, can reflect complex environments in practical application more truly, has simple test steps, and can be popularized and applied in a large range.

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 provides a device for an unconfined compression-resistant test mold, and belongs to the field of geotechnical test equipment. The problems that an auxiliary loading device for manufacturing the unconfined compression-resistant test piece cannot be suitable for test molds of different sizes, and the material insertion efficiency is low are solved. According to the technical scheme, the pouring device comprises a pouring groove body of a hollow structure, one end of the pouring groove body is detachably connected with a guiding device of a hollow structure, the guiding device is of an integrated structure, and the tangent line of the inner surface of the pouring groove body intersects with the center line of the pouring groove body. The pouring groove body is connected with a fixing device through a plurality of connecting devices, a tamping device is arranged in the fixing device in a clearance fit mode, the tamping device is further in clearance fit with a guiding device, and the fixing device, the pouring groove body and the guiding device are coaxially arranged. The device is applied to soil tests.

The invention discloses a vertical permeameter for a soil test, and relates to the technical field of vertical permeameters, the vertical permeameter comprises a sponge sleeve plate, the sponge sleeve plate is used for cleaning the inner wall of a transparent test tube and absorbing water which is not drained, and the inner side of the sponge sleeve plate is provided with a small sleeve block; the vertical permeameter for the soil test has the advantages that the inner walls of the transparent test tubes can be cleaned by the aid of the movable sponge sleeve plates, moisture which is not drained can be absorbed, the inner walls of the transparent test tubes can be cleaned by the aid of the movable sponge sleeve plates, and accordingly the inner walls of the transparent test tubes can be cleaned by the aid of the sponge sleeve plates; the situation that impurities such as dust and marl remaining after multiple tests are accumulated in test tubes for storing test products, and consequently the accuracy of subsequent tests is seriously affected is prevented, and a bottom baffle extrudes the sponge sleeve plate from the bottom of the sponge sleeve plate to drain water and discharges absorbed residual water; the situation that dust and other sundries on the surface are difficult to effectively remove due to the fact that the sponge sleeve plate is in a humid state after absorbing residual water every time is prevented.

The invention discloses an agricultural fertilizing device with a soil sampling function, and relates to the technical field of agricultural production.The agricultural fertilizing device comprises a fertilizing frame, a fixed fertilizing barrel and a lifting circular plate, the fixed fertilizing barrel is installed on the inner side of the fertilizing frame through a connecting plate, and the lifting circular plate is movably installed on the inner side of the fixed fertilizing barrel; the output end of the feeding motor is connected with a spiral sampling barrel through a rotating shaft. According to the intelligent soil testing and fertilizing instrument, the sampling and fertilizing assembly is arranged on the inner side of the fixed fertilizing barrel, after sampling is completed, sampled soil sequentially passes through the soil feeding barrel and the soil screening barrel to fall into the soil testing groove, and the intelligent soil testing and fertilizing instrument rapidly and accurately measures various nutrient substances, the pH value and the organic matter content in the soil; soil samples are collected, soil nutrients are rapidly detected, accurate fertilization suggestions are provided for the soil according to detection results, the fertilization device with the soil sampling function can more scientifically manage the soil, and the yield and quality of crops are improved.

The invention discloses a true triaxial multifunctional pipe soil test device and method, and belongs to the technical field of buried pipeline tests. The device comprises a rack, a true triaxial loading chamber, a test piece box, a hydraulic servo control system and a fluid injection device, the rack comprises a counter-force frame, a transfer slide rail, a test piece box lifting transfer platform and a right counter-force frame; the true triaxial loading chamber is arranged in the counter-force frame, sixteen groups of loading devices are arranged in the front, left, rear and upper directions of the loading chamber, and each group of loading device comprises a hydraulic cylinder, a pressure transmission rod and a pressure transmission plate; the right counter-force frame provides sixteen groups of right loading devices; the fluid injection device is a liquid injection or gas injection device, is connected with the nitrogen storage tank for gas injection when a gas buried pipeline needs to be simulated, and is connected with the water storage tank for liquid injection when a liquid buried pipeline needs to be simulated; and the hydraulic servo control system is connected with each hydraulic cylinder and is an independent hydraulic control device. The device can be used for simulating the influence of different loads on the stress, deformation and damage of the buried pipeline under actual conditions.

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 utility model discloses a sealing device for a rock-soil penetration test, and belongs to the technical field of geotechnical engineering test piece testing. Comprising a box bottom structure and a box cover structure, the box bottom structure comprises a box bottom rubber sleeve and a bottom groove plate, and the upper end face of the box bottom rubber sleeve is of an open structure; the bottom groove plate is embedded in the lower end face of the box bottom rubber sleeve and is flush with the lower end face of the box bottom rubber sleeve, and the bottom groove plate is in sealed connection with the seam of the box bottom rubber sleeve. The box cover structure comprises a box cover rubber sleeve and a cover groove plate, the lower end face of the box cover rubber sleeve is of an open structure, the cover groove plate is embedded in the upper end face of the box cover rubber sleeve and is flush with the upper end face of the box cover rubber sleeve, and the joint of the cover groove plate and the box cover rubber sleeve is connected in a sealed mode. The bottom trough plate is provided with a water outlet hole, and the cover trough plate is provided with a water inlet hole; the rock-soil test piece is placed in the box bottom structure, and the box cover structure sleeves the outer sides of the rock-soil test piece and the box bottom structure from top to bottom and is used for sealing the whole rock-soil test piece; according to the utility model, the problems of complex sealing process and large test result error in the existing geotechnical engineering penetration test are solved.

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.