686 results about "Solum" patented technology

The invention discloses a farmland environment multi-parameter intelligent monitoring system and method based on Internet of Things, particularly relates to the technical field of agricultural Internet of Things monitoring, and is used for solving the problem of stress resistance evaluation distortion caused by neglecting crop physiological recovery hysteresis in the prior art. Collecting soil water content data in real time through an Internet of Things sensor, and extracting a soil water content change rate when a preset threshold value is reached; secondly, constructing a space-time gradient matrix based on different soil layer water deficit rates, and generating a stress cumulative intensity index through principal component analysis and information entropy fusion; then analyzing a coupling relationship between the soil moisture change rate and the stress accumulation effect in the historical stress event on physiological recovery delay to generate a recovery delay coefficient; the physiological state lag degree is evaluated by combining the stomatal conductance change rate ratio of the stress period and the recovery period and the recovery delay coefficient; and finally, dynamically prolonging the irrigation execution time according to the lag degree until the irrigation execution time is lower than a set tolerance value, thereby remarkably improving the reliability of crop stress resistance test data.

The invention discloses a high-silt-content working condition screw pump control system and method, and belongs to the technical field of soil layer drilling, and the system comprises a multi-mode sensing module, an intelligent decision and control module, a self-adaptive adjustment execution module and a self-cleaning and anti-blocking module. According to the high-mud-content working condition screw pump control system and method, the operation state and medium characteristic data of the screw pump are accurately collected through the multi-mode sensing module, and early prediction and accurate diagnosis of faults are achieved in combination with an advanced data processing algorithm and a deep learning model in the intelligent decision-making and control module; meanwhile, a self-adaptive adjustment execution module and a self-cleaning and anti-blocking module are utilized to dynamically optimize the rotating speed and the gap of the motor and intelligently clean and prevent blocking, so that full-process closed-loop control is formed; finally, multiple beneficial effects of improving the monitoring accuracy, enhancing the anti-interference capability of the system, reducing the maintenance cost, reducing the non-planned downtime, and improving the operation efficiency and stability are achieved.

The invention relates to the technical field of alpine sand soil moisture leakage estimation technologies, and particularly discloses an alpine sand soil moisture leakage estimation method which comprises the following steps: S1, multi-source data acquisition: acquiring 0-110cm layered soil moisture content and temperature data by using a cold-resistant soil hydrothermal sensor array, and calculating the moisture content and temperature data of the layered soil; synchronously acquiring Sentinel-2 remote sensing data to extract vegetation coverage and land surface temperature, and recording regional freezing and thawing cycle times and biological crust coverage types; s2, key parameter inversion: calculating a permeability coefficient correction factor kFTC = alpha * N (1 / 2) through a multi-expression programming model based on the freezing and thawing cycle number N. According to the method for estimating the soil moisture leakage amount of the high and cold sand land, the limitation of a traditional model based on steady-state water flow and empirical parameters is broken through by quantifying the dynamic effect of freezing and thawing cycles on the porosity of a 30-80 mm soil layer and the water blocking effect of 23.41%-30.39% when the biological crust coverage degree exceeds 30%; and the influence of the low-temperature freezing and thawing cycle and the biological crust on the leakage mechanism of the high and cold sand land is accurately depicted.

The invention discloses a layered foundation construction optimization method based on dynamic loading and intelligent inversion, and relates to the technical field of intelligent geotechnical engineering. In order to solve the problem that comprehensive analysis and optimization design of multiple layers of soil bodies are difficult to carry out in the prior art, the invention provides the following technical scheme: the layered foundation construction optimization method based on dynamic loading and intelligent inversion is characterized by comprising the following steps: S1, applying a dynamic load on a known layer of soil body; s2, acquiring response data, including acceleration, displacement and stress, of the soil body under the action of the dynamic load through a sensor; s3, deducing the dynamic response of the lower-layer soil body by using an inversion algorithm based on the acquired response data; s4, analyzing dynamic response characteristics of each layer of soil body; and S5, optimizing the compactness and the elastic modulus of the soil layer. The method can improve the accuracy and efficiency of soil dynamic response analysis, is suitable for mechanical property optimization in complex foundation engineering, and has wide engineering application value.

The invention provides a data-driven intelligent stirring and quality prediction method, and is suitable for the field of stirring pile construction. According to the method, the data-driven neural network model is established, soil layer parameters, stirring parameters and construction quality are recognized, the state of a stirring machine is monitored in real time, the stirring process is dynamically adjusted, the comprehensive construction efficiency is improved, and the strength of a stirring pile can be predicted according to real-time data such as cement paste and the guniting amount by establishing the quality prediction model; and finally, intelligent construction is achieved, and the engineering quality and safety are improved.

The invention discloses a cross-medium transmission simulation device and method for pollutants between soil and underground water, and relates to the technical field of environmental governance, and the cross-medium transmission simulation device for pollutants between soil and underground water comprises a soil layer system and an underground water system. The soil layer system comprises a base and a soil box arranged on the base in the vertical direction, the soil box is used for containing test soil, and the base is provided with a first water permeable hole used for being communicated with the soil box. The underground water system comprises a water tank, a mounting opening is formed in the upper side of the water tank and used for allowing the base and the soil box to sequentially penetrate through, and the height of the inner side of the water tank is larger than that of the base so that water in the water tank can penetrate through the first water permeable holes and make contact with a soil layer in the soil box. By comparing the content of the pollutants at the same position, the blocking effect of the blocking agent on the pollutants can be evaluated, and the blocking effect of the blocking agent during cross-medium transmission of the pollutants between the soil and the underground water can be evaluated on the whole.

The invention discloses a foundation treatment method for determining the thickness of a replacement cushion layer of an underground water supply and drainage pipeline. The foundation treatment method comprises the steps that S1, it is determined that a pipeline foundation is a concrete foundation or a gravel foundation; s2, the required foundation bearing capacity is calculated; s3, checking whether the bearing capacity of the uncorrected pipe bottom soil layer foundation meets the design requirement or not, and if yes, carrying out foundation treatment of replacing and filling a cushion layer; if not, foundation treatment of the replacement cushion layer is conducted, and the thickness of the replacement cushion layer is calculated according to the following formula; according to the method, the accuracy and quickness of calculation of the replacement thickness are improved, the working efficiency is improved, unnecessary waste is reduced, the foundation treatment method for determining the foundation bearing capacity needed by pipelines with different pipes, pipe diameters and earthing thicknesses and the thickness of the replacement cushion layer is provided, the needed foundation bearing capacity is determined according to the different pipes, pipe diameters and earthing thicknesses, and the foundation treatment effect is improved. And when a soft soil layer exists at the bottom of the pipe, a foundation treatment method adopting a replacing and filling cushion layer is provided, the requirement for foundation bearing capacity can be met, and safe operation of the pipe is guaranteed.

The invention relates to the field of geological exploration equipment, in particular to a geological exploration drilling machine for architectural design. Existing equipment is easy to fracture a soil core sample, and is easy to cause soil layer sequence disorder, so that the detection accuracy is influenced. A geological exploration drilling machine for building design comprises a movable chassis, a rotating frame installed on the movable chassis, a hydraulic push rod fixedly connected to the rotating frame and a lower moving plate fixedly connected to the hydraulic push rod. When the soil sampler is used, the five soil sampling cylinders are pushed to move by the five push rods when the push rod frame moves, the five soil sampling cylinders are pushed out of the soil sampler by the five push rods of the push rod frame, a worker pushes soil cores in the five soil sampling cylinders out of the soil sampling cylinders and sequentially puts the pushed-out soil cores into the storage box, and the soil cores can be taken out in sections, so that the taken-out soil cores are more complete; therefore, the soil core detection is more accurate.

The present invention relates to the technical field of pile driving equipment, and specifically discloses a pile drilling equipment for foundation construction, comprising: a drill rod, a support system, a power system and a compacting component, wherein the drill rod comprises a rotating shaft, a drill bit and an auger blade, the drill bit is arranged at the bottom end of the rotating shaft, the auger blade is arranged at the peripheral side of the rotating shaft, the support system is used to support the drill rod, the power system is used to provide power for the drill rod, and the compacting component comprises a compacting cylinder and a diverter plate, the compacting cylinder is arranged at the peripheral side of the auger blade, the auger blade forms a spiral channel in the compacting cylinder, a plurality of diverter ports distributed at intervals are arranged on the compacting cylinder, a diverter plate is arranged at each diverter port, the diverter plate is rotatably matched with the compacting cylinder, the diverter plate can extend into the spiral channel, and the amount of diverted soil can be adjusted according to the compaction degree of the soil layer; the pile drilling equipment for foundation construction of the present invention can automatically divert soil according to the looseness of the soil layer, and compact the borehole wall.

The invention provides a drainage pipeline supporting and connecting structure based on municipal engineering and a using method, the drainage pipeline supporting and connecting structure comprises a base, the base is provided with a reinforcing unit used for being inserted into soil and at least two clamping units used for clamping a drainage pipeline, and the distance between the clamping units can be adjusted through a first driving unit; the clamping unit comprises a clamping mechanism with the size adjustable through a second driving unit. Flexible adjustment of the distance between the clamping units is achieved through the first driving unit, and the device can adapt to drainage pipelines with different pipe diameters and different arrangement modes; the inner diameter size of the clamping mechanism is dynamically adjusted through the second driving unit, it is ensured that the clamping mechanism is tightly attached to the outer wall of the pipeline, and pipeline displacement caused by construction vibration or water flow impact is effectively restrained; the reinforcing unit is inserted into a soil layer to form multi-point anchoring, base loads are dispersed, the method is particularly suitable for soft soil or high-water-level areas, the differential settlement risk is remarkably reduced, and the later maintenance frequency is reduced.

The invention provides a soil sample compacting method which comprises the following steps: establishing a corresponding relationship between dry density and pressure stress of a soil layer through a filling test, and determining a pressure stress level sequence corresponding to the dry density of the soil layer under a target dry density; filling a soil layer in the test model box in a layered manner, respectively applying corresponding pressure stress to the soil layer based on the pressure stress hierarchical sequence to adjust the dry density so as to form a composite soil body with a target dry density in the test model box, and arranging a soil pressure detection part in the composite soil body; after a part of the soil layer of the composite soil body is compacted, positioning drilling is carried out to form a drilling cavity, and the simulation pile body of the pre-installed strain detection component is pressed into the drilling cavity; through stress transfer in the compaction process of the composite soil body, the drilling cavity generates radial deformation so as to realize tight coupling of the composite soil body and the pile periphery interface of the simulation pile body; the problems that when the dry density of the soil body is adjusted, efficiency is low, uniformity is poor, detection equipment is prone to damage in the pile forming process, and the compaction degree of soil around the piles and between the piles is insufficient are solved.

The invention belongs to the technical field of soil sampling, particularly relates to a river dam soil sampling device for intelligent water conservancy, and aims to solve the problems that traditional equipment can only obtain samples with single depth through single-time drilling, different soil layers can only be collected through repeated drilling, the efficiency is low, soil layer structures are damaged, and an effective isolation mechanism is lacked. In order to solve the problems in the prior art that soil at different depths is easy to mix in the collection or extraction process, and the detection accuracy is influenced, the invention provides the following scheme: the device comprises a disc ring, and three finger grooves are formed in the outer side of the disc ring; and the three supporting leg positioning structures are uniformly mounted at the bottom of the disc ring. Through cooperation design of the rotary sampling cylinder and the sampling hole, the precise 60-degree indexing rotary locking handle and the bottom sealing structure of the integrated drill bit, soil of different depths can be collected, the collected soil can be prevented from being mixed, the stability of the sampling process is ensured through three-point synchronous propulsion, and the sampling efficiency is improved. And the deployment of the river dam is simplified through the magnetic foot-stepping positioning insertion rods.

The invention discloses an acidity and pressure dual-mode termite nest positioning method and equipment, and relates to the biological control, termite nest positioning and data processing technology, and the method comprises the steps: controlling a device with a drill rod, and carrying out the downward drilling at a designated position; soil acid and bit pressure are obtained in the drilling process; according to the obtained soil acidity and bit pressure, a fractional order differential model is established, and the accumulation of termite nest formation and environmental action is analyzed through the fractional order differential model; and outputting the probability of existence of the termite nest in the specified position according to the fractional order differential model. According to the embodiment of the invention, the acidity volatility is deeply measured through minimally invasive drilling, the existence and the specific position of the main nest are further judged, and whether a hole exists in the soil layer or not is judged by combining the change of drilling pressure (push rod force) in the soil penetrating process.

The invention relates to the technical field of forest fertilization, in particular to a forest precise fertilization decision-making method and system based on soil nutrient profit and loss, and the method comprises the steps: obtaining basic information of a target forest land, and dividing forest growth stages based on the basic information; the method comprises the following steps: collecting an undisturbed soil sample and a mixed soil sample of a 0-40cm soil layer of a target forest land by adopting an S-shaped point distribution method, separating the mixed soil sample, and respectively measuring the soil nutrient content, the bioavailability, the soil enzyme activity and the microbial functional gene. According to the method, by measuring the dimension indexes, constructing a five-dimensional profit and loss evaluation index system for determining the reference value and dynamically adjusting the weight according to the forest land data, calculating the comprehensive profit and loss index, judging the nutrient state and generating the personalized fertilization scheme, the defects that an existing fertilization scheme is single in basis index and lacks an effective dynamic adjustment link are effectively overcome; the requirements of multi-generation continuous planting forest land are met, and the environmental risks such as fertilizer waste, soil acidification and water eutrophication are effectively reduced.

The utility model belongs to the technical field of experimental research, and particularly relates to an experimental device for researching a subsurface zone pollutant migration rule, which comprises a water injection component, a column body, a filling medium and a detection component, the column body is of a cylindrical cavity structure, the upper end and the lower end of the column body are each provided with a water injection opening, and the two water injection openings are each communicated with one output end of the water injection assembly; the filling medium is arranged in the column body and is used for simulating a soil layer structure from surface water to underground water; the detection assembly comprises a processor, an environment monitoring module and a pollutant collection module; the environment monitoring module is used for monitoring different depth environment indexes in the filling medium; and the pollutant collection module is used for collecting pollutants at different depths in the filling medium at regular time and transmitting the pollutants to the processor for analysis. The device can avoid the interference of external environmental factors, and provides reliable reference data for accurately analyzing the migration rule of the subsurface zone pollutants in the vertical direction.

The utility model relates to the technical field of geological survey, and provides a layered soil sampling device for geological survey, which comprises a fixing ring, a plurality of fixing components are arranged at the bottom end of the fixing ring and used for fixing the fixing ring, and the fixing components are annularly arrayed at the bottom end of the fixing ring and used for fixing the fixing ring. A soil sampling assembly is arranged on the inner side of the fixing ring and used for drilling soil, a transmission assembly is arranged at the upper end of the soil sampling assembly and used for transmitting the soil sampling assembly, the fixing assembly comprises a fixing rod fixedly connected to the outer wall of the bottom end of the fixing ring, and an anchoring rod is fixedly connected to the outer wall of the bottom end of the fixing rod. When the device is used for sampling soil layer by layer, the first soil sampling half cylinder and the second soil sampling half cylinder are separated, layered soil is taken out, the situation that wet soft soil pollutes other soil layers in the extrusion process is reduced, the sampling efficiency of the device is improved, and therefore the purity of a sample is improved.

The present disclosure relates to a pneumatic serial device for spraying materials into a deep soil layer and an implementation method thereof. The device comprises a material spraying injector (1), a air blasting system (2) connected with the material spraying injector (1), and a material feeding system (3), wherein the air blasting system (2) and the material feeding system (3) are connected with the material spraying injector (1) in series in sequence, wherein the air blasting system (2) comprises a high-pressure air tank (2-1) and a quick relieve valve (2-2), the material feeding system (3) comprises a material chamber (3-1), a feeding valve (3-2), a valve I (3-3), a material sending chamber (3-4), a valve II (3-5) and a material delivery pipe (3-6) which are connected to each other in sequence, and the material delivery pipe (3-6) extends into the high-pressure air tank (2-1) and is communicated with the quick relieve valve (2-2) at the bottom thereof. Combined with the implementation method thereof, the device can uniformly apply a certain amount of various materials into the soil layer at any depth, replacing the traditional method, greatly improving the operation efficiency of applying materials into the deep soil layer, significantly reducing the cost of applying materials into the deep soil layer, and reducing the labor intensity.

The application relates to a suction cylinder sinking resistance calculation method and relates to the technical field of suction cylinder foundation construction, which comprises the following steps: calculating the clay content index of a clay-sand mixed soil layer by using a pore pressure static sounding test structure; calculating the upper limit value of the side resistance coefficient of the suction cylinder, the lower limit value of the side resistance coefficient of the suction cylinder, the upper limit value of the end resistance coefficient of the suction cylinder and the lower limit value of the end resistance coefficient of the suction cylinder according to the clay content index; and calculating the first sinking resistance based on the above resistance coefficients and by using a formula. The application establishes a suction cylinder sinking resistance calculation method for the clay-sand mixed soil layer, clearly defines the quantitative relationship between the clay content index of the clay-sand mixed soil layer and the sinking resistance coefficient (including the end resistance coefficient and the side resistance coefficient), solves the problem that the calculation parameters of the suction cylinder sinking resistance in the clay-sand mixed soil layer are not clear in the existing norms, and improves the accuracy of the sinking resistance calculation result.

The invention belongs to the technical field of shield tunnel construction, and discloses a shield tunnel deformation overrun correction pile group and a correction method. The correcting method comprises the following steps that (1) a high-pressure jet grouting method is adopted, grouting is conducted on a soil layer outside a single segment with deformation exceeding the limit to form a pile column on the outer circle face of the segment, the grouting pressure in the grouting process acts on the segment through the soil layer outside the segment, and therefore correcting pressure for correcting deformation of the segment with deformation exceeding the limit is generated; the correction pressure acting on the duct piece is adjusted by adjusting the grouting pressure and / or the slurry return pressure; and (2) the step (1) is repeated till correction of all the segments, with deformation exceeding the limit, of the shield tunnel is completed. The radial piles are formed on the outer side of the tunnel through the high-pressure jet grouting technology, the soil property around the tunnel is improved, meanwhile, the size of the correction force is controlled by controlling the slurry return pressure in the jet grouting process, accurate correction of the deformation over-limit shield tunnel is achieved, and the operation safety of the shield tunnel is effectively guaranteed.

The invention relates to the technical field of soil physical parameter in-situ measurement, and discloses a soil layer natural water content portable intelligent measuring instrument based on multi-source sensing fusion, which comprises a composite probe assembly and an intelligent measurement and control host which are physically connected, the composite probe assembly is configured to be inserted into a soil layer to be tested to construct a multi-physical field test environment, and an electrical transceiving unit and an acoustic transceiving unit are integrated in the composite probe assembly. By constructing a cross physical field excitation and multiphase parameter collaborative decoupling mechanism, a multidimensional dynamic correlation model is established by using the thermosensitive drift characteristic of the sound velocity of a mixed medium during thermal disturbance and the transient step response of a dielectric constant under an acoustic radiation force field; the problems that the coupling influence of the water content and the volume weight cannot be distinguished and the conductivity of bound water and the conductivity of free water are difficult to separate in a traditional means are effectively solved, and four independent physical quantities including the volumetric water content, the in-situ dry volume weight, the bound water content and the actual conductivity of pore water are synchronously inverted through a single probe. And the decoupling precision of the equipment on complex multi-phase soil medium parameters is improved.

The utility model relates to a soil pressure gauge embedding structure for short pipe replacement construction, which comprises a probe hole arranged at the top and the side edge of a pipeline, a paddle binding bag arranged at the bottom of the probe hole, slurry in a soft plastic state filled in the paddle binding bag, and a soil pressure gauge arranged in the paddle binding bag and perpendicular to the radial direction of the pipeline. The soil pressure gauges in the probe holes right above the pipeline are horizontally arranged, and the soil pressure gauges in the probe holes on the two sides of the pipeline are laterally arranged, so that the formation pressure change can be effectively conducted to the soil pressure gauges, and the accuracy of monitoring results of the soil pressure gauges is ensured; the bottom of the water pumping pipe is wrapped with geotechnical cloth to prevent the sand from entering the water pumping pipe and blocking the water pumping pipe; the top of the water pumping hole is backfilled with clay to prevent surface water from entering a soil layer around the pipeline through the water pumping hole; the bearing capacity of the soil layer is reduced; and the pipeline structure safety is influenced.

The invention relates to the technical field of soil improvement, in particular to a soil forming process and system for coal-based solid waste. The soil forming technology of the coal-based solid waste comprises the steps that an original soil layer, a composite clay water stopping layer, a gangue-based artificial soil raw material layer and a surface soil and gangue fertilizer layer are sequentially laid in the environment with the oxygen content being 1-5 ppm and the water content being 15-30%, and fine sand or geotechnical cloth is laid between the layers to serve as a soil layer protection layer; wherein the gangue-based artificial soil raw material layer comprises first coal-based solid waste, a first water-retaining agent and a microbial compound inoculant; the first coal-based solid waste comprises first coal gangue, second coal gangue and third coal gangue; the particle size of the first coal gangue is gt; 5 cm; the particle size of the second coal gangue is 1-5cm; the particle size of the third coal gangue is 1t; the thickness is 1cm.

The invention relates to a seepage stratum shield launching and receiving end head reinforcing method which comprises the following steps: firstly, marking an extension contour line of a tunnel on the ground surface of one side, facing the tunnel, of a working well, and marking a reinforcing area outside a predetermined contour line of the tunnel; and then an RJP construction method is adopted for conducting preliminary reinforcement on the reinforcement area, a plurality of RJP pile bodies arranged along the extending contour line are formed, the RJP pile bodies are cooled after being solidified, soil layers around the RJP pile bodies are frozen through cooling, and curtains are frozen on the two sides of the extending contour line. According to the technical scheme, the soil body strength can be improved, the soil body stability can be enhanced, the soil body permeability can be reduced, the soil body deformation can be controlled, the freeze-thaw cycle resistance can be improved, and the problem that the geological state around working wells at the starting end and the receiving end is unstable in the seepage stratum shield construction process can be effectively relieved and overcome.

The invention relates to the field of deep horizontal displacement monitoring, and provides a deep horizontal displacement correction method and system based on the starting depth of an inclinometer. The method for correcting the deep horizontal displacement based on the starting depth of the inclinometer comprises the following steps: if the starting depth is the bottom of the inclinometer, calculating a first difference value between the corrected deep horizontal displacement at the orifice of the inclinometer and the absolute value of the horizontal displacement at the orifice of the inclinometer; if the starting depth is not equal to the bottom of the inclinometer tube, calculating a second difference value between the corrected horizontal displacement of the deep layer at the bottom of the inclinometer tube and the absolute value of the horizontal displacement at the bottom of the inclinometer tube; distributing the first difference value or the second difference value to each soil layer according to the reciprocal of the shear strength to obtain a first distribution error; determining a second distribution error of each monitoring point of each soil layer according to the number of the monitoring points contained in each soil layer; and obtaining a final displacement absolute value of each monitoring point according to the corrected deep horizontal displacement of each monitoring point. And the accuracy of deep horizontal displacement is improved.

The invention relates to the technical field of forestry data processing, in particular to a landscaping maintenance system and method based on big data, and the system comprises a water potential monitoring module, a block division module, a pruning adjustment module, a man-hour scheduling module and an anomaly recognition module. According to the method, by tracking the consistency of soil moisture fluctuation in real time, accurately analyzing the dynamic influence of the root system type and the soil layer structure on water absorption and combining plant evapotranspiration physiological indexes and meteorological condition differences to finely divide water demand grades, efficient matching of water supply and plant physiological statuses is achieved; the pruning period is dynamically adjusted according to the actual change of plant photosynthesis and tissue expansion, the coordination error between maintenance working hour calculation and geographic path planning is effectively reduced, the continuity and timeliness of illumination change abnormal response recognition are improved, the accuracy and refinement level of garden plant maintenance decision making are remarkably improved, and the method is suitable for popularization and application. And the scientific decision-making capability, the space adaptive capability and the intelligent response level of greening maintenance management are improved.

The utility model relates to the technical field of water and soil conservation, and particularly discloses an ecological slope protection water and soil conservation device. Comprising grating blocks arranged on the surface of a soil layer of the ecological slope protection, the adjacent grating blocks are connected through mortise and tenon joint structures, and a plant protection area is formed in a central grating groove of each grating block; and the separating and positioning assembly is arranged in the soil layer on the lower side of the grating block, vertically penetrates through the slope protection floating soil layer and extends to the bearing layer. Through the arrangement of the grating blocks, the adjacent grating blocks are spliced through mortise and tenon joint structures, and an integral protective layer is formed on the surface soil layer of the ecological slope protection. And through the arrangement of the separating and positioning assemblies, the lower soil body can be divided into independent units, and the independent units are matched with the upper grating blocks to form a three-dimensional water and soil conservation frame, so that the overall stability of the slope protection is enhanced, and local water and soil loss and diffusion are prevented. The problems that a traditional slope protection structure is poor in synergistic protection effect and continuous water and soil conservation function, and interlayer slippage is likely to be generated under the long-term dry-wet cycle effect are solved.

The utility model relates to the technical field of spiral pressure grouting pile drilling, in particular to a spiral hole-forming drill bit suitable for a soil body containing a soft soil layer, which comprises a long spiral drill rod and a protective plate assembly, the long spiral drill rod comprises a drill rod main body and a spiral blade which are controlled to rotate, and a through material channel is formed in the drill rod main body along the axial direction of the drill rod main body. According to the spiral hole-forming drill bit suitable for the soil body containing the soft soil layer, the arc-shaped protection plates are arranged in pairs and symmetrically installed on the two sides of the drill rod body respectively, the protection plate assemblies can form a cylindrical surface when the drill rod body rotates, the cylindrical surface abuts against the inner wall of a drill hole, and therefore the effective supporting and protection effects are provided in the drilling process; the problem that the hole diameter does not meet the design requirement due to collapse of the hole wall is solved, sludge scraped off by the arc-shaped protection plate can be sent out of the drilled hole through the spiral blade through cooperation of the spiral blade, the sludge on the hole wall is effectively prevented from being mixed into concrete, and the bearing capacity of the pile body is guaranteed.

The utility model relates to the technical field of soil detection, in particular to a rapid screening device for soil pollution in industrial and mining areas. The soil layer in the earth surface can be sampled and detected, and the soil detection efficiency and the detection precision are improved; comprising a rod column, a lifting frame mounted on the rod column in an up-down sliding manner, a mounting disc mounted at the bottom of the lifting frame, a plurality of sampling insertion pipes uniformly distributed at the bottom of the mounting disc in the circumferential direction, a rotating frame rotationally mounted on the rod column, and a plurality of liquid containing pipes uniformly distributed at the bottom of the rotating frame in the circumferential direction, the adjusting seat is rotationally mounted in the middle of the rotating frame; the X-ray fluorescence spectrophotometer is mounted on the adjusting seat; a lifting driving piece for driving the lifting frame to slide up and down is mounted on the lifting frame; the sampling insertion pipe is rotatably mounted on the mounting disc, a driven wheel is fixedly mounted at the top of the sampling insertion pipe, a driving wheel meshed with the driven wheel is rotatably mounted in the middle of the mounting disc, and a first driving motor for driving the driving wheel to rotate is mounted on the lifting frame.

The invention discloses a tea garden soil moisture physical simulation and data driving fusion prediction method and device, and relates to the field of soil moisture prediction.The method comprises the steps that based on soil basic attributes and multi-depth soil moisture time sequence observation data, a soil moisture physical baseline sequence is obtained in combination with boundary conditions and initial conditions; respectively extracting data of a target soil layer in a preset time window from the soil water content physical baseline sequence, the multi-source driving data and the multi-depth soil water content time sequence observation data so as to splice the data into an input feature set; obtaining a water content prediction value of the target soil layer on the prediction day based on the input feature set and a preset soil water content prediction model; according to the method, the HYDRUS-1D simulation result is taken as a baseline, the time sequence dependence of soil moisture, especially the lag response of different soil layers, is effectively learned, and the modeling capability of a complex nonlinear relationship is improved.

The invention discloses long bolt cross beam tower foot hydraulic lifting equipment which comprises suction pumps, flow guide cylinders are fixedly connected to the upper portions of the suction pumps, the suction pumps are fixedly installed at the four corners of the lower portions of the flow guide cylinders, and liquid storage pipes storing hydraulic oil are fixedly installed at the four corners of the upper portions of the flow guide cylinders in an embedded mode. The four corners, corresponding to the liquid storage pipe and the suction pump, in the flow guide cylinder are arranged in a penetrating mode, and the two-way valve mechanisms are fixedly installed in the flow guide cylinder with the four corners penetrating through in an embedded mode. When the tower foot is lifted, the telescopic pipe extends out of the sealing sleeve, after the through groove is opened, the piston rod extrudes water glass and a weak acid solution under the action of air pressure, the water glass and the weak acid solution permeate into gaps of a sedimentation soil layer to generate neutralization reaction to generate silicic acid gel, the soil layer is solidified to prevent secondary sedimentation, and meanwhile the electric control valve automatically seals the connecting pipe after hydraulic oil is conveyed. And hydraulic oil backflow is avoided, it is ensured that the lifting position is fixed, lifting-curing-constancy operation is achieved, and then the structural stability of the leveled tower foot is improved.