169 results about "Soil volume" patented technology

Provided is a method for treating contaminated soil. The method includes providing contaminated soil in a soil chamber that has at least one wall, and at least one floor, at least one heater coupled to or inside of at least one of the walls and at least one substantially elongated floor heater coupled to or in the floor. At least one of the walls at least partially includes a thermally conductive material configured to transfer heat from at least one of the heaters to an interior of the soil chamber. At least one of the walls at least partially encloses an interior of the soil chamber. At least one of the walls can move between a closed position during heating of the soil chamber, and an open position that allows a soil moving vehicle to access an interior of the soil chamber to provide or remove soil to and from the soil chamber unencumbered by piping located within the soil volume. The method also includes heating the contaminated soil within the soil chamber to substantially reduce the level of contaminants in the contaminated soil.

A soil parameter measurement arrangement includes a capacitive based soil moisture and salinity sensor, a predetermined moisture migration medium located in a volume adjacent said sensor so that the medium substantially occupies the field of influence of said sensor. The medium is in moisture communication with the soil to be measured, and said sensor is adapted to measure and produce data representative of the volumetric water content of said medium. A sensor data processing means determines both the soil moisture and salinity of said medium. By using the measured volumetric soil moisture content and the moisture release curve of the medium, it is possible to derive the matric potential of the soil. The measured salinity of the medium corresponds to the salinity of the soil that is in moisture communication with the medium.

A device for computing an excavated soil volume using structured light is disclosed. A control sensor unit is provided at the hinge points of an excavator arm, and is configured to detect and output the location and the bent angle of the excavator arm. A microcontroller is configured to output a control signal so as to capture the images of a work area of a bucket, provided at one end of the excavator arm, using the output of the control sensor unit, convert the captured images into 3-Dimensional (3D) images, and compute an excavated soil volume. An illumination module is configured to include at least one light source that is controlled by the control signal and radiates light onto the work area. A structured light module is configured to capture the work area in response to the control signal.

The instant invention relates to compositions and methods for the control of nematodes and soil borne diseases using compositions comprising high terpene containing oils and one or more surfactants. The invention also relates to methods for increasing the wetted soil volume available for water utilization by plant roots using the disclosed compositions.

Provided is a method for treating contaminated soil. The method includes providing contaminated soil in a soil chamber that has at least one wall, and at least one floor, at least one heater coupled to or inside of at least one of the walls and at least one substantially elongated floor heater coupled to or in the floor. At least one of the walls at least partially includes a thermally conductive material configured to transfer heat from at least one of the heaters to an interior of the soil chamber. At least one of the walls at least partially encloses an interior of the soil chamber. At least one of the walls can move between a closed position during heating of the soil chamber, and an open position that allows a soil moving vehicle to access an interior of the soil chamber to provide or remove soil to and from the soil chamber unencumbered by piping located within the soil volume. The method also includes heating the contaminated soil within the soil chamber to substantially reduce the level of contaminants in the contaminated soil.

The invention discloses a method of determining thermophysical parameters of rock soil and heat resistance of a vertical ground heat exchanger. The method includes steps: initializing test data and parameters of a drill hole and a buried pipe acquired in a thermal response experiment; initially setting rock soil heat conducting coefficient lambda s, rock soil volume heat capacity Cs and weight coefficient f corresponding to weight average temperature, and setting respective parameter ranges; using a column heat source model and a quasi-three-dimensional heat resistance model to calculate drillhole wall temperature Tb, I, ground heat exchanger inlet-outlet fluid temperature Tin, sim, i, Tout, sim, I and ground heat exchanger heat resistance Rb, I corresponding to each moment in the experiment; using square sum mean value of measured value and simulation value difference of the weight average temperature as a target function fopt, and using a simulated annealing algorithm to perform optimization iteration on lambda s, Cs and f; when fopt is lower than an optimization target value delta Tset, acquiring optimization results of three parameters lambda s, Cs and f, calculating a mean value of the sum of Rb, I at each moment corresponding to the optimization results, and acquiring heat resistance Rb of the ground heat exchanger. By the method, accuracy of recognition results on the thermophysical parameters of the rock soil and the heat resistance of the ground heat exchanger is improved.

The present invention relates to a method that obtains emissivity or reflectivity based on ratios of the brightness temperature measured by a satellite and the land surface temperature, calculates two reflectivity using polarizing features of a microwave according to surface characteristics, and measures a volumetric soil water content of a land surface considering that water has different physical characteristics from those of soil. In particular, it may be possible to measure volumetric soil water contents on territories of other countries as well as regions which have many limitations and troubles in direct measurement of the volumetric soil water contents. Accordingly, valuable materials in terms of nation economy may be produced together with substantial contribution to industrial fields that have direct effects on agriculture and disaster prevention.

The invention discloses a stress path full-automatic hydraulic servo control type rigid-flexible multifunctional triaxial apparatus which comprises a loading frame, a double chamber pressure chamber, a base, a pressure head, a loading system, a data measurement and collection device and a control device, wherein the double chamber pressure chamber is arranged at the periphery of a sample, the pressure head and the base are respectively arranged at the upper end and the lower end of the sample, the loading frame is arranged at the outer side of the double chamber pressure chamber, the double chamber pressure chamber comprises an inner pressure chamber and an outer pressure chamber arranged at the periphery of the inner pressure chamber, the loading system is used for carrying out a loading test on the sample, the data measurement and collection device is used for collecting and measuring loading test data, and the control device is respectively connected with the loading system and the data measurement and collection device and used for controlling the loading system and acquiring the loading test data obtained by the data measurement and collection device. With the adoption of the stress path full-automatic hydraulic servo control type rigid-flexible multifunctional triaxial apparatus, accurate measurement of unsaturated soil volume deformation can be carried out.

The invention provides a biomass charcoal-containing fertilizer assistant, being prepared from 0.5wt percent to 10wt percent of crop growth active factor, 0.5wt percent to 3wt percent of high molecular material and the balance of biomass charcoal. By adding the components and adjusting contents thereof, a fertilizer utilization rate can be increased, the crop yield can be improved, soil volume-weight can be lowered, air permeability and water permeability are enhanced, the forming of soil aggregate is promoted, soil cation exchange capacity is improved, and then soil moisture and fertilizer retention capacity is enhanced; heavy metals, residual pesticide and antibiotics fixed in soil can be adsorbed and can be absorbed less by crops, and crop quality is promoted; in conclusion, the fertilizer assistant has the characteristics of improving soil environment and increasing the fertilizer utilization rate.

The invention discloses a moisture measurement method and device of a vertical section of farmland soil. The device is characterized by comprising a mounting pipe sleeve, a hollow cylindrical electrode, an insulating pipe column, a base band coaxial cable, a liquid-phase hollow water column, a resisting plate and a core processor; the moisture measurement device of the vertical section of the soil is controlled by a voltage-controlled oscillator to generate a high-frequency oscillation signal; a low-frequency square wave signal is obtained through silicon epitaxy high-frequency and low-noise amplitude amplification, and shaping and frequency division of a dual-modulus prescaler; accurate sensing of the volume moisture content of the soil is realized through a mathematical model between the frequency and the volume moisture content of the soil. A cylindrical stereoscopic type multilayered structure is adopted, and a moisture dynamic determination fitting and quantitative inversion technology of the vertical section of the farmland oil is integrated, so that the volume moisture convent of different heights of the vertical section of the farmland oil and the moisture supply amount of the soil of the vertical section are dynamically sensed in real time by utilizing the fewest layers; the moisture measurement method and device has the greatest advantages that the moisture condition of the vertical section of the soil can be continuously sensed in real time, the space integrity is strong and real-time calibration can be realized.

The invention discloses a convenient earth-taker which can be used for testing the bulk density of deep soil, which comprises a base, an auger rod, a geared lifting rod, and a sampling tube; wherein, the base is fixedly connected with the ground, and a top of the base is installed with a For the pull rod with gear, the auger rod is fixed between a pair of pull rods with gear to form a gear system; the thread on the auger rod meshes with the gear on the pull rod with gear to form a lever system; the sampling tube is installed on the auger The bottom end of the drill pipe; the up and down movement of the auger drill pipe is realized by pressing down or lifting the gear pull rod, and the use of the spiral and lever principles can make the earth taker in the present invention more labor-saving, quickly enter the soil and pull out the soil, reducing Soil disturbance improves the accuracy of soil scientific research, while reducing the labor intensity of the sampling process and improving work efficiency.

A humic acid degradable liquid manure plastic film is characterized in that the components and content proportions by weight are as follows: 55% to 65% of humic acid, 4% to 6% of accelerant, 13% to 17% of stabilizing agent, 13% to 17% of film former, and 4% to 6% of water. The humic acid degradable liquid manure plastic film can reduce more than 30% of groundwater evaporation, the soil moisture content is increased by more than 20%, and the water preserving effect is good; the ground temperature of the soil 30 to 50 mm under ground is increased by 1 to 4 DEG C, the crop growth and development period is 3 to 10 days ahead, and the heat insulation effect is good; the fertility is added, and the content of humic acid in liquid plastic film is greater than 90%; the permeability is added, the soil volume weight is decreased by 6 to 10, the soil granulation amount is greater than 0.25, which is increased by more than 10.

The invention relates to the field of a soft soil curing agent, and particularly provides a barium-containing sulphoaluminate soft soil curing agent and a preparation method thereof. The sulphoaluminate soft soil curing agent comprises components in percentage by weight as follows: (1), 50%-80% of sulfoaluminateclinker containing barium; (2), 25%-40% of calcined gypsum; (3), 10%-12% of lime; (4), 0.5%-2% of a water-retaining agent; and (5), 0.5%-5% of a retarder. The preparation technique process comprises the steps of calcinating natural gypsum, preparing ingredients, mixing and grinding. The soft soil curing agent has the characteristics of quick condensation, high strength and no shrinkage of curing soil volume, total strength can be formed after the curing for 1-3 days, and the soft soil curing agent is particularly suitable for quick maintenance and reinforcement of road foundations; and besides, under the same additive amount, the unconfined compressive strength of compacted soil adopting the soft soil curing agent is apparently higher than that of compacted soil adopting P.C 32.5 ordinary Portland cement, and the reinforcement effect is remarkable.

The invention discloses a conditioning agent of high-nutrient saline soil and a preparation method and application thereof. The conditioning agent is prepared from charcoal, non-ionic polyacrylamide, anionic polyacrylamide, cationic polyacrylamide, lignite and kieselguhr according to the mass ratio of (5 to 10):(2 to 4):(2 to 4):(1 to 3):(3 to 5):1. The conditioning agent provided by the invention solves a series of problems of poor soil physical property, high ion content, low soil quality and the like caused by the saline phenomenon on the soil; the soil volume weight is reduced; the soil porosity degree is increased; the exchange of water, gas, heat and the like in the soil can be facilitated; the soil fertility is improved; meanwhile, the salt ion content and the whole salt content are reduced; the harm to the soil and the crops is reduced, so that the crop yield is increased.

The invention relates to a sensor for measuring soil moisture and a measuring method thereof. The soil moisture sensor sends out high frequency signals through a high frequency signal source; a detection circuit converts change of a dielectric constant into direct current voltage to output; and the outputted direct current voltage and soil moisture content determine mathematical relation, so as to achieve accurate measure of water content of soil volume; and the measurement accuracy is + / - 2 percent. Because the detector head of the sensor adopts a probe type, the sensor can be embedded in a soil section to measure continuously and can also be matched with a special measuring instrument to measure in a movable circulation mode; as the circuit is relatively simple, the measuring method has low cost which is much lower than that of a TDR soil moisture tester; , and the measuring method is convenient to debug, and ensures consistency of batch production of sensors.

The invention belongs to the soil humidity inversion method and particularly relates to the soil humidity inversion method aiming for the ultra wide band radar echo. The soil humidity inversion method aiming for ultra wide band radar echo comprises steps of obtaining near-real-time echo data by using the characteristics of short pulse, strong penetrability, and anti-interference of the ultra wide band radar, utilizing a fuzzy logic system to study and extract characteristic parameters of a membership function from the echo data, and inverting soil volume water content through performing template matching on the membership function. The method provided by the invention is accurate and fast and low in cost, and can monitor the changing of the soil humidity in unattended operation for long time. The low cost of the invention is applicable to generalization and applicable to the assembled radar sensing network performing real time monitoring on the big area soil humidity, and, as a result, the invention provides a reliable mean to realize the accuracy agriculture.

A wind driven generator base anchor pile construction technology taking rock as a bearing stratum comprises the following steps: (1) excavating rock and soil volume in designed diameter, pouring concrete subslab after removing to the designed depth of excavation, and arranging anchor pile hole sites, (2) starting up an air compressor and downhole drill to drive an impacter to rotate and vibrate for punching, forming an anchor pile hole, (3) lifting a prefabricated reinforcing cage into the anchor pile hole, pouring concrete, and forming at least two circles of vertical pile and one circle of batter pile after the concrete strength reaches the standard, (4) putting a reinforcement mat rack into a base pit, fixedly connecting the reinforcing cage and the reinforcement mat rack and then pouring concrete, and (5) arranging a base embedded part above the concrete foundation and poring concrete. The invention has the advantages of less excavated rock and soil volume, no need of blasting operation, few amount of reinforcing steel bar and pouring concrete, no pollution to environment and soil, high construction efficiency and safety, small occupied area, low construction cost, high foundation strength, and strong pulling-out resistant and shearing resistant capacity.

The invention relates to the field of water-saving irrigation, in particular to a land irrigation quota determining method. The land irrigation quota determining method mainly comprises the steps that film mulching is conducted on soil of an experimental field after the soil of the experimental field is fully irrigated; three experimental points are randomly selected in the experimental field to obtain soil samples; 20 g-30 g of each soil sample are weighed, and a field water-holding ratio of the soil and a soil volume-weight are obtained; management and calculation are conducted on the obtained data of the water-holding ratio and the volume-weight of the soil layer with the same depth of the three experimental points to obtain average values; scatter points of the obtained data are drawn on a coordinate system, computer software is utilized to draw an H-gamma, H-alpha fitting function curve chart, according to the fitting function curve chart, a maximum water volume M of one-time irrigation of the soil is obtained through formulas. The land irrigation quota determining method can greatly reduce the waste of agricultural water, and the land irrigation quota determining method is economical and practical.

The invention provides a macadam slope vegetation recovery structure and a construction method, and relates to the technical field of slope restoration. According to the macadam slope vegetation recovery structure, by means of matched arrangement of a covering soil layer, a first protection layer, a base layer, a planting layer and other specific structures, the slope stability can be effectivelyenhanced, ecological restoration on a macadam slope is achieved, the needed covering soil is greatly reduced, and the technical problem that the covering soil layer is large in thickness, the soil volume is large, and a soil source cannot be guaranteed due to the fact that direct soil covering is adopted for plant cultivation in the prior art is relieved. In addition, the macadam slope vegetationrecovery structure can control the macadam slope locally, macadam clearing and carrying expenses are saved, the cost is greatly reduced, and the technical problem that due to the fact that in the prior art, a machine is adopted for clearing and carrying the macadam slope in the prior art, the stacking place is limited, the transportation distance is long, and the clearing and carrying cost is highis relieved. The construction method of the macadam slope vegetation recovery structure is further provided.

The invention discloses an irrigation decision-making method and an irrigation decision-making device based on weather forecast. The method includes determining a field water holding point and an irrigation compensation point according to a soil moisture content accumulation curve, wherein the soil moisture content accumulation curve is a curve showing time-dependent changes of the soil volumetricwater content corresponding to a specific soil depth; determining a predicted value of reference crop evapotranspiration ET0 according to weather forecast data; predicting a predicted value of actualcrop evapotranspiration ETc in the future according to the predicted value of the ET0 and a crop coefficient Kc; and predicting the number of irrigation days according to the predicted value of the ETc in the future, the field water holding point and the irrigation compensation point. By the method and the device, the problem of complexity of related irrigation forecasting ways is solved.

The invention discloses a preparation method of a salinization soil improving agent. The method comprises the following steps of fermenting corn stalks; preparing an organic ecological fertilizer; preparing and modifying charcoal; compounding the improving agent. The method has the beneficial effects that the used major raw materials are all from industrial and agricultural production byproducts or wastes; the environment is protected; the comprehensive utilization is realized; the cost is reduced; the improving agent can effectively enhance the organic matter content in the soil; the content of mineral substance elements in the soil solution is increased; the soil fertilizer effect is enhanced; the water holding performance is enhanced; the soil volume weight is reduced; the porosity is increased; the soil structure is improved; through the ion replacement effect of the soil improving agent, the contents of salt base ions such as sodium ions and potassium ions in the soil solution can be effectively reduced; through the rinsing effect, the salt base ions are settled to the soil bottom layer; the harm of the salt base ions is reduced; the pH value of the soil solution can be reduced; the salinization soil is fundamentally improved, so that high economic values and social values are realized.

The invention discloses a method for determining the volume weight of soil and a soil volume weight determination system. The method comprises the following steps: collecting a soil block under an undisturbed soil condition and determining to obtain the volume water content of the soil block; putting the soil block into a sealing bag; pumping air in the sealing bag and tightly fastening the sealing bag; weighing the weight of the soil block in the fastened sealing bag; putting the fastened sealing bag into a sealing container with a piston to obtain a first sealing container volume and a first sealing container air pressure; pushing the piston to slide to obtain a second sealing container volume and a second sealing container air pressure; obtaining the volume of the soil block in the fastened sealing bag according to obtained parameters; calculating a soil wet volume weight according to the volume of the soil block in the fastened sealing bag and the mass of the soil block in the fastened sealing bag; and obtaining a soil dry volume weight based on the soil wet volume weight and the volume water content of the soil block. With the adoption of the method for determining the volume weight of the soil and the soil volume weight determination system, the determination efficiency and the determination precision of the soil volume weight can be improved.

The invention relates to the technical field of soil conditioners, and particularly relates to a garden waste biomass carbon based soil conditioner and a preparation method thereof. The garden waste biomass carbon based soil conditioner consists of the following raw materials in parts by weight: 50-100 parts of garden waste biomass carbon, 10-15 parts of fermented soybean residues, 10-15 parts ofplant ash, 1-5 parts of chitin, 10-15 parts of sodium bentonite, 5-10 parts of sodium lignin sulfonate and 1-5 parts of nano titanium dioxide. The garden waste biomass carbon based soil conditioner and the preparation method thereof provided by the invention have the beneficial effects that the garden waste biomass carbon is adopted as a basic raw material, the characteristics of the garden wastebiomass carbon as biomass carbon are fully utilized, and then the raw materials such as the fermented soybean residues, the plant ash, the chitin, the sodium bentonite, the sodium lignin sulfonate andnano titanium dioxide are selected to be matched with the garden waste biomass carbon, so that the gas permeability of soil can be effectively improved, the soil volume weight is reduced, contaminated soil is repaired, the soil microbial activity is promoted, and the soil fertility and the water permeability are enhanced.

The invention relates to a carbon-based biological potassium fertilizer which is a fertilizer prepared by mixing biochar with a potassium fertilizer, a beneficial bacterial agent and a synergistic agent. The carbon-based biological potassium fertilizer can reduce the curing rate of a potassium nutrient element in soil, promote the dissolution and the release of cured potassium, improve the absorption utilization rate of crops, reduce the fertilizer investment cost, improve the total amount of potassium decomposition bacteria in soil, promote the activity of the potassium decomposition bacteria, covert a fixed potassium element in the soil to a soluble effective potassium nutrient element which can be directly absorbed and utilized by the crops, alleviate a soil hardening phenomenon, increase the soil aggregate structure, reduce the soil volume weight, improve the soil biological activity, improve the soil environment, reduce the dependence on imported potassium fertilizers, reduce application amounts of traditional potassium fertilizers, and safeguard the Chinese agriculture and food safety.

The invention discloses a novel method for reducing nitrogen loss in composting process of perishable garbage. According to the novel method, biochar prepared at the high temperature of 800 DEG C canwell adsorb ammonium ions, so that volatilization of NH4 <+> in the composting process is reduced, and the nitrogen preservation process is promoted; the biochar is doped with certain iron ions, and iron-based biochar is added in the composting process, so that the generation of catalase in the aerobic biological reflection process can be promoted; the biochar adsorbs NH4 <+> in the reactor, the dissolution of NH4 <+> is inhibited, the formation of hydroxyl ions is prevented, and the increase amplitude of the pH value of the compost is effectively reduced; and by virtue of biochar, the nitrogen discharge in the composting process can be improved, and after the composting is finished, the biochar and the decomposed material after composting are applied to soil, so that the soil volume weight can be effectively reduced, the porosity is increased, the water holding capacity of the soil is improved, the field climate is improved, the field water holding rate is adjusted, the structure of the soil can be improved, the soil is loosened, the three-phase proportion of the soil is stabilized, and the pH value of the soil is improved.

The invention belongs to the technical field of oil improvement, and especially relates to a soil improvement agent. The soil improvement agent is prepared from, by weight, 20 to 25 parts of dolomite powder, 19 to 22 parts of flyash, 13 to 16 parts of powdered rock phosphate, 12 to 15 parts of peat, 8 to 10 parts of food residue, 7 to 9 parts of polypropylene glycol, 6 to 10 parts of humic acid, 5 to 8 parts of livestock manure, 4 to 8 parts of leguminous green manure, and 0.5 to 1 part of dendrobium. The soil improvement agent is reasonable in formula, is capable of improving soil physical structure effectively, reducing soil volume weight, improving soil water content, changing soil chemical properties, adjusting all conditions or a part of conditions including soil water, fertilizer, gas, and heat, and improving soil fertility.

A process of improving the nutrients of sub soil by digging a portion of land called as trench to a width and length in the same land to receive the volume of the soil required to put the bed on the complete land as the top layer. In one embodiment, the present invention relates to a novel process of improving soil fertility leading to high yields of cereals traditionally grown crop like rice in said agri-zone. In another embodiment, it describes the high yield production of non-traditional cereal crop like wheat. Both the system production warrants low or no inputs like chemical based fertilizers and pesticides. Higher yields coupled with high nutritional levels as a result of restoration of fertility levels in depleted soils are main results of the innovative process.

A method for increasing the strength of a volume of soil, particularly for containing and supporting excavation faces, which comprises at least one reinforcement step that consists in producing a plurality of mutually spaced reinforcement holes arranged substantially vertically or inclined with respect to a vertical direction in the volume of soil to be strengthened; reinforcement elements are then inserted in the reinforcement holes and are locked within the soil by injecting in the reinforcement holes a synthetic locking substance that expands by chemical reaction. The method can optionally also comprise a step for consolidation of the volume of soil by injecting, in injection holes that are arranged vertically or are inclined with respect to the vertical and are formed beforehand in the soil, a synthetic consolidation substance that expands by chemical reaction.

The method comprises the following steps of (1) cultivated land selection including selecting a medicinal material slope between young tea-oil trees on a four-period red-earth hillock area for an interval deep scarification intertillage target, (2) ditch digging, fertilizer application and land preparation including digging ditches along contour lines, applying base fertilizer in the ditches and covering soil and form equal-high trenches, (3) medicinal material seedling transplantation and fixed plantation or root stock fixed plantation, (4) deep scarification intertillage including conducting deep scarification intertillage before ridge-close in the summer, and (5) grass belt or grass fence construction, including building equal-high grass belts or grass fences with an interval of 9 to 11m on a slope from slope top to the slope root of the young tea-oil tree forest slope. Soil moisture content can be improved; soil ventilation and nutrient effectiveness can be promoted after rain and soil organic matter humification can be promoted; compared with the present common intertillage, the method can improve stratum moisture content, reduce soil volume weight, increase stratum nutrient content increase and promote young tea-oil tree growth as well as increasing medicinal material output.

A testing system capable of dynamically testing features of water content of soil in the dehumidification / freezing process comprises a pressurization dehumidification system, a temperature control system and an automatic data collecting system. According to the testing system, through the combination of the pressurization dehumidification system and the temperature control system, the constant-temperature dehumidification drying process and the constant-pressure cooling freezing process of a soil sample are achieved. By means of the testing system, the whole dehumidification process is conducted in a temperature-adjustable constant-temperature control box, testing of soil water content features is completed, error influences caused by potential factors such as temperature change, water evaporation, soil volume change and manual operation in the dehumidification process of soil are fundamentally reduced, and on the other hand, the cooling freezing process of soil under different pressure conditions is achieved through a pressurization device and effective methods and means are provided for soil freezing experimental investigation under the high pressure condition. The system can be used for the dewatering drying process of the soil sample under the set temperature condition and can also be used for the cooling freezing process of the soil sample under the set pressure condition, and the automatic real-time monitoring and collecting in the soil sample dynamic changing process are achieved.