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45 results about "Parent rock" patented technology
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Parent rock, also referred to as substratum, refers to the original rock from which something else was formed. It is mainly used in the context of soil formation where the parent rock (or parent material) normally has a large influence on the nature of the resulting soil. For example,clay soil is derived from shale while sandy soil comes from the weathering of sandstones. The term is also used in the context of metamorphic rocks where again the parent rock or protolith refers to the original rock before metamorphism takes place. Parent rocks can be sedimentary, igneous or metamorphic.
Method for the Treatment of the Obstructed Zones of the Parent Rock of Hydrocarbon-Producing Strata Adjacent to a Gas and Oil Well Drilling Zone in Order to Increase Productivity
The invention relates to a device and method for treating the backfilled area of the productive stratum adjacent to the drilling area of oil and gas wells using high pressure pulses. The technological equipment consists of a submersible cylindrical container which is equipped with a high pressure section for accumulating the gaseous working agent, a high pressure one-way electromagnetic valve for dispensing the gaseous agent, a low pressure section where gamma radiation and material solidity detectors and data transmission equipment are located, an intermediate section where at least two one-way nozzles are located, specially arranged radially for injecting the working agent into the areas to be treated, and the technical control and operating equipment.
Owner:BLACH SERVERA PEDRO
Method for determining rockfill material filling standards and detecting on-site filling quality based on fractal theory
ActiveCN107543775AControl filling qualityGuaranteed constructionParticle size analysisPermeability/surface area analysisPorosityRockfill material
The invention relates to a method for determining rockfill material filling standards and detecting on-site filling quality based on a fractal theory. The method comprises verifying a particle fractaldistribution model, building a relationship between grading parameters and dry density or porosity, building a relationship between grading parameters and a compressive modulus, determining rockfillmaterial filling grading or a grading envelope line satisfying compressive modulus requirements, acquiring a filling porosity index or an index range, carrying out a penetration test, detecting a permeability coefficient, if the permeability coefficient does not satisfy the permeability requirement, reducing and adjusting a grading range until the permeability coefficient satisfies the permeability requirement, and verifying whether the filling porosity under the condition of design relative density satisfies the filling porosity requirement. The method provides double control standards of porosity and relative density, controls rockfill body filling quality, comprehensively considers the influence produced by the grading of the rockfill material, the characteristics of the parent rock anda compaction degree on the deformability of the rockfill body, provides the reliable basis for the whole stability of the rockfill dam and effective deformation control and ensures the construction and operation safety of the dam.
Owner:HOHAI UNIV
Manufacture method for cement sample used for simulating parent-rock porosity character
InactiveCN105277405AEasy to prepareImprove efficiencyPreparing sample for investigationPorosityPolyvinyl alcohol
A disclosed manufacture method for a cement sample used for simulating parent-rock porosity character comprises the following steps: measuring the mechanical strength and the porosity character of a target-area parent rock, selecting the ratio of water, lime and sand in the cement sample raw materials according to the mechanical strength measurement result, mixing the raw materials, and uniformly stirring to form a mixture; adding the mixture into a sample mold in batches, taking the parent-rock porosity character measurement result as a basis, and adding a modified polyvinyl alcohol slice into each batch of the mixture according to the measured pore position, size and direction in the parent rock; after the cement sample is solidified, demolding, and maintaining at a preset condition, so as to obtain the cement sample. By employing the provided manufacture method for the cement sample used for simulating parent-rock porosity character, the manufactured cement sample can relatively well simulate the bedding and natural crack cases of rock, and the efficiency and the accuracy of physical simulation experiments for hydraulic fracturing, oil-gas exploitation and reservoir damage and recovery evaluation are improved.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Method for determining filling index of coarse granular material and realizing on-site quality control
ActiveCN107807520AGuaranteed constructionGuaranteed operational safetyMaterial testing goodsAdaptive controlPorosityModel parameters
The invention discloses a method for determining the filling index of a coarse granular material and realizing on-site quality control. According to the method, corresponding gradation statistical models are established according to the components with different particle sizes of the coarse granular material; correlations between the gradations of different model parameters and dry density or porosity are established through relative density tests; by means of compression tests and triaxial tests, correlations between the gradations of the different model parameters and breaking strength are established, and correlations between the gradations of the different model parameters and modulus of compression are established; and with selecting a -modulus of compression as an objective, a filling porosity index or index range is obtained. According to the method of the invention, the filling quality of the coarse granular material is controlled according to the dual-control standard of porosity and relative density; the influences of the gradations, parent rock features and compaction degree of the coarse granular material on the deformation performance of the coarse granular material are comprehensively considered; a reliable basis is provided for the control of the overall stability and effective deformation of rock-fill dams or gravel rock-fill dams, so that the safety of the construction and operation of the dams can be ensured.
Owner:NANJING YIHAI WATER CONSERVANCY ENG TECH CO LTD
Ground stress testing method based on rock core Kaiser effect
ActiveCN110987674AHigh precisionForce measurementEarth material testingCoal measuresPrincipal stress
The invention discloses a ground stress testing method based on rock core Kaiser effect. The method comprises the following steps of: drilling a plurality of rock core samples on a mother rock in theaxial direction of the mother rock core and in a plurality of directions perpendicular to the axial direction of the mother rock core; carrying out acoustic emission testing on each rock core sample,determining Kaiser effect points on the rock core samples through acoustic emission counting, acoustic emission counting accumulation and / or acoustic emission counting rate increment of the rock coresamples, and determining the stress of the Kaiser effect points on the rock core samples; based on the stress of the Kaiser effect points on the rock core samples, determining the maximum horizontal principal stress and the minimum horizontal principal stress of the mother rock and the included angle between the maximum horizontal principal stress and a marker line; and determining an azimuth angle of the maximum horizontal principal stress relative to a geographical north pole. The method is accurate and effective, improves the precision of the three-dimensional principal stress and directiontest of the coal measure strata, and provides basic reference data for mining area development and roadway arrangement.
Owner:SHENHUA SHENDONG COAL GRP +1
Reservoir physical property evaluation method and device based on triangular evaluation plate
PendingCN111665272ASolve the problem of quantitative evaluationImproving the Accuracy of Quantitative EvaluationPermeability/surface area analysisMaterial analysis using radiation diffractionClay mineralsRock core
The invention provides a reservoir physical property evaluation method and device based on a triangular evaluation plate, and the method comprises the steps: dividing minerals in a rock core into three types according to the properties of parent rock in a rock core source region and a mechanical differentiation principle, and enabling the three types of minerals to respectively correspond to threevertexes of a triangular evaluation plate, wherein the three types of minerals comprise carbonate minerals, skeleton minerals and clay minerals; according to the contents of the three types of minerals and rock core physical property parameters, carrying out content region division on the triangular evaluation plate; and evaluating the physical properties of a reservoir to be evaluated accordingto the content region division. The invention can provide the method and the device for quickly and visually evaluating the physical property of a tight reservoir.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Vertical rotary tiller for promoting rock to form soil on purple soil thin layer slope
InactiveCN107624276APromote weatheringIncreasing the thicknessTilling equipmentsErosion rateThin layer
The invention discloses a vertical rotary tiller for promoting rock to form soil on a purple soil thin layer slope. The vertical rotary tiller comprises a rack and a spiral device, wherein a case is arranged at the top end of the rack, and a generator is arranged in the case; an oil tank is arranged at the top end of the case, and a water tank is arranged at one side of the oil tank; the spiral device is arranged at one end of the rack, and the top end of one side of the spiral device is fixedly provided with a push rod; the bottom of the other end of the rack is welded with a rotating shaft,and the two ends of the rotating shaft are respectively connected with the inner ring of a rolling bearing in a penetrating way. The mud and the shale on the purple soil thin layer slope are spirallyground and crushed by the spiral device to promote the weathering of parent rock into soil and reduce the tillage erosion so that the soil formation rate is greater than the erosion rate and the soillayer thickness is increased, the deep tillage is performed but a soil layer is not disturbed, and a U-shaped groove is formed in a soil deep layer after the tillage is performed by a spiral shaft toeffectively gather interflow. The vertical rotary tiller can complete the traditional plowing, raking and beating operation procedures once, and is favorable for water, gas fertilize balance in the soil through live soil water retention.
Owner:HYDRAULIC SCI RES INST OF SICHUAN PROVINCE +1
Method of quantifying hydrocarbon formation and retention in a mother rock
Owner:INST FR DU PETROLE
High-strength high-performance manufactured sand concrete with no mineral admixture
InactiveCN105218016AOvercome the defect of unstable performanceGuaranteed compressive strengthHigh intensityCompressive strength
The invention discloses high-strength high-performance manufactured sand concrete with no mineral admixture. The concrete comprises parent rock, manufactured sand, cement, a water reducer and water. The compressive strength of the parent rock is higher than 80MPa. The weight content of stone powder in the manufactured sand is 5-10%, and the weight content of mud in the manufactured sand is lower than 0.5%. The usage amount of cement is 490-510kg / m<3>. The concrete has the following mixing ratio parameters: the water-binder ratio is 0.30-0.33, and a sand ratio is 38-41%. The concrete provided by the invention has the following advantages: 1, no mineral admixture is needed, such that materials are saved, and the defect of poor property stability of the mineral admixture is overcome; under the situation with no mineral admixture, concrete mechanical performances such as compressive strength satisfy the requirements of C50 concrete; 2, concrete fluidity and workability are improved through specific parameters; 3, the parent rock is used, such that local materials can be used, and a problem of river sand shortage can be solved; and 4, concrete cracks can be reduced, and concrete durability can be improved.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
Preparation method of true triaxial sample for reflecting occurrence characteristics of weak intercalated rock mass
PendingCN114739775APrecise force controlMeet the test requirementsPreparing sample for investigationMaterial strength using tensile/compressive forcesComposite sampleRock sample
The invention provides a preparation method of a true triaxial sample reflecting occurrence characteristics of a rock mass containing a weak intercalated layer, which comprises the following steps: firstly, obtaining a stress state of a primary rock, then preparing cuboid rock samples with different combination angles in batches, and polishing a rock structural surface of the sample based on scanning data of a field rock structural surface to obtain a true triaxial sample; adjusting the water content of the weak intercalated layer obtained on site or the weak intercalated layer similar material prepared by uniformly mixing the weak intercalated layer according to the proportion to the required water content, maintaining, adjusting the rotating support to the required angle, sequentially adding the materials into a mold, and finally loading the sample to a primary rock stress state and carrying out later-stage standardization treatment. According to the method, by adjusting the splitting and grinding angle of the mother rock, setting the mold with an inclinable angle and setting different thicknesses of the weak intercalated layers, the weak intercalated layer-mother rock composite samples with different occurrence states and thicknesses are prepared, the weak intercalated layers are distributed more uniformly, and the obtained weak intercalated layer-mother rock composite true triaxial sample is easy to form and has good mechanical properties. And the method is more in line with the actual spatial topology distribution state of the weak intercalated layer on site.
Owner:ZHENGZHOU UNIV
Low-energy consumption landscape ecological restoration method
InactiveCN107162204APrevent secondary entryReduce phosphorus contentSustainable biological treatmentBiological water/sewage treatmentRestoration methodMicrobial agent
The invention belongs to the technical field of landscape ecological restoration, and especially relates to a low-energy consumption landscape ecological restoration method. The low-energy consumption landscape ecological restoration method adopts a microbial agent composite water treatment agent to restore the ecology of landscape water, aquatic plants and animals are added into the water to form a symbiosis system, and the microbial agent composite water treatment agent and the aquatic plants and animals have synergistic effects, so the water quality is improved, the transparency of the water is improved, and the restoration of the ecology of the landscape water is facilitated; microbial agent composite purple parent rocks and polyferric sulfate can effectively remove TN and TP in the landscape water to be restored, and have the characteristics of high efficiency and fastness in treatment, environmental protection, low cost, low energy consumption, high purifying efficiency and good treatment effect, and the purple parent rocks belong to natural mineral, contain many clay-sized minerals, has low phosphorus content, and can effectively inhibit the release of nitrogen and phosphorus in sediments.
Owner:JIANGSU DONGZHU LANDSCAPE CONSTR
Net-rope-and-plug-linked-type landscape anchoring device used for preventing falling type dangerous rock
ActiveCN105113521AProtect steady stateImprove construction progressExcavationsBulkheads/pilesSteel barEngineering
The invention discloses a net-rope-and-plug-linked-type landscape anchoring device used for preventing falling type dangerous rock. The net-rope-and-plug-linked-type landscape anchoring device is characterized by comprising a plurality of anchoring units distributed on the periphery of the dangerous rock, a protective net for covering the surface of the dangerous rock and landscape objects attached to the protective net; each anchoring unit comprises a plug and a reverse-pulling cylinder, wherein the plug is inserted and clamped into the reverse-pulling cylinder to achieve connection of the plug and the reverse-pulling cylinder; the reverse-pulling cylinders and a parent rock mass are connected in an anchored mode through mortar; each plug comprises a pencil-shaped body, and each body is provided with a plurality of barb grooves and a plurality of barbs at intervals; the barb grooves of the plugs are cuboid grooves, and the length of the barb grooves is coincident with the length of the barbs; the barbs are hinged to the sides of the barb grooves through studs and meanwhile elastically supported by stretchable devices; the reverse-pulling cylinders of the plugs are rectangular columns, a plurality of barb clamping grooves are evenly formed in each reverse-pulling cylinder, four penetrating reinforcing steel bar holes are preserved in each reversing-pulling cylinder, four penetrating reinforcing steel bars are arranged in each reversing-pulling cylinder, and the barb clamping grooves are wedge-shaped grooves. According to the net-rope-and-plug-linked-type landscape anchoring device, the rock mass of the dangerous rock is not damaged, and construction is rapid and convenient; the net-rope-and-plug-linked-type landscape anchoring device has the advantage of achieving landscape repairing.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Shallow layer landslide type valley debris flow early warning method
ActiveCN114596689AConsistent with the formation mechanismImprove the accuracy of early warningHuman health protectionDesign optimisation/simulationSoil scienceTopographic factor
The invention discloses a shallow landslide type valley debris flow early warning method, which belongs to the technical field of debris flow prevention and control engineering, and is characterized by comprising the following steps of: a, measuring a full watershed area A of debris flow without accumulation areas; b, measuring the percentage S0 of the sensitive slope area in the whole drainage basin area of the debris flow without the accumulation area and the longitudinal gradient J of the gully bed, and determining a debris flow topographic factor T; c, determining the annual average rainfall R0 of the debris flow channel in the monitoring area and the one-hour rainfall variation coefficient Cv of the debris flow channel, measuring the one-hour excitation rainfall It, determining the mother rock type of the soil, calculating the soil moisture content factor K, and determining the debris flow rainfall factor R; d, calculating a debris flow occurrence index P; and e, judging the occurrence of debris flow. The measurement and calculation result of the method is more in line with the debris flow formation mechanism, the debris flow early warning accuracy is improved, and the method has higher disaster prevention applicability.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Method and device for determining lithology of clastic garnet mineral parent rock
ActiveCN112395729ASystem distinctionAccurate distinctionDesign optimisation/simulationLithologyElement analysis
The invention provides a method and device for determining lithology of clastic garnet mineral mother rock. The method comprises steps of preliminarily determining the lithology of the clastic garnetmineral mother rock through employing a garnet Mg-Fe+Mn-Ca main element discrimination graph according to a main element analysis result of a to-be-detected clastic garnet mineral; and when the main element analysis result of the to-be-detected chip garnet mineral falls in the Type A, Type B or Type D region of the discrimination graph, further determining the parent rock lithology of the to-be-detected chip garnet mineral by utilizing the trace element analysis result of the to-be-detected chip garnet mineral. According to the method, garnets from a basic rock source and a variable basic rocksource can be more systematically and accurately distinguished, garnets from different types of skarn sources can be distinguished, and garnets from a granite source, a high-grade granite phase-change argillaceous rock source and a medium-low-grade hornstone phase-change argillaceous rock source can be distinguished; and therefore, the method plays an important role in the aspects of material source recovery research, even basin-mountain coupling relationship research and the like.
Owner:PETROCHINA CO LTD
Source-sink system quantitative evaluation method
PendingCN113960288AEffectively analyze the coupling relationshipEarth material testingSeismic signal processingQuantitative modelParent rock
The invention discloses a source-sink system quantitative evaluation method, and belongs to the field of sediment source analysis. The method comprises: constructing a conceptual model based on geological data; determining simulation parameters under the guidance of the conceptual model, and establishing a sedimentary stratum quantitative model through stratum forward modeling based on the hydrodynamic principle; based on the principle of conservation of substances, combining with real geological data to verify that the sedimentary model is reasonable, and extracting sedimentary thicknesses from different material sources in different time steps by using the model after the material source input mode is changed; and calculating and processing the thickness of the sediments from different material sources in the simulation time step length, and analyzing the contribution of the sediments from different material sources. The method solves the problems that an existing method cannot carry out work in areas without wells or with few wells, and sediments from different material sources in the basin cannot be quantitatively distinguished. In consideration of internal and external dynamic geological effects such as reference surface lifting and structural activity, the method has the characteristic of quantitatively evaluating the relative contribution of sediments from different mother rock areas in the basin in different time steps in the source-sink system.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Tail end process for improving quality of machine-made sand
InactiveCN111992317AImprove screening efficiencyEasy to handleSievingScreeningSaturated-surface-dryWater volume
The invention relates to the technical field of machine-made sand, in particular to a tail end process for improving the quality of machine-made sand. The tail end process comprises the following steps of S1, selecting rock blocks; S2, crushing rock blocks; S3, conducting screening; S4, performing dust removal; and S5, obtaining machine-made sand. A sand washer water tank is provided with a watersupply system; and the water supply system comprises a high-water-level liquid level meter, a middle-water-level liquid level meter, a low-water-level liquid level meter, a submerged pump, a sewage pump, a water adding valve and a liquid level controller. A square-hole screen is selected as the screen; the size of each sieve pore is 3.5 to 4.5 mm; the inclination angle of the screen surface is generally about 20 degrees; good screening efficiency and treatment capacity of the materials can be achieved; the water volume in water tank is effectively controlled; the submerged pump is protected; the water is saved; the saturated surface drying effect of the machine-made sand is achieved; the national requirements are met; and the quality of the machine-made sand can be effectively improved, and the performance of machine-made sand concrete is improved through the technical requirements of mine mother rock, the technical requirements of a vibration feeding screen, a material crushing methodand the mechanism of the material crushing method in the machine-made sand production technological process.
Owner:JIANGSU SHANBAO GRP
Rapid evaluation method suitable for performance of pebble mother rock of machine-made aggregate
InactiveCN111596029AAvoid the disadvantages of high compressive strength but ignore the possible delamination insideAvoid cumbersomeWeighing by removing componentAnalysing solids using sonic/ultrasonic/infrasonic wavesSoil scienceEngineering
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2
Compound treatment agent for landscape water body
ActiveCN105600897AEfficient governanceLow costWater/sewage treatment by flocculation/precipitationTotal nitrogenTherapeutic effect
The invention provides a compound treatment agent for a landscape water body. The compound treatment agent comprises polyferric sulfate and purple parent rock. The compound treatment agent provided by the invention has the advantages of low cost, wide source and environmental friendliness, can be used for treating landscape water bodies different in pollution degree and realizes high purifying efficiency and good treatment effect, wherein the removal efficiency of nitrogen and phosphorus is high, and the removal rate of total nitrogen in the seriously-polluted landscape water body can reach 57.94% while the removal rate of total phosphorus can reach 83.63%; and the damaged ecological balance can be effectively restored so that the ecological system resumes virtuous cycle.
Owner:SOUTHWEST UNIVERSITY +1
Protective structure and treatment method for side slope overhang body
PendingCN110565664AWill not be damaged by vibrationAvoid Vibration DamageExcavationsBulkheads/pilesTreatment effectRebar
Owner:POWERCHINA CHENGDU ENG
Proton energy parent rock amorphous nanometer composite material
InactiveCN102198928APromote circulationImprove sleepingIndividual molecule manipulationIndiumHafnium
The invention discloses a proton energy parent rock amorphous nanometer composite material. The material is prepared from oxides, namely more than or equal to 26 weight percent and less than or equal to 33 weight percent of calcium oxide and more than or equal to 16 weight percent and less than or equal to 21 weight percent of manganese oxide, and more than or equal to 0.1 weight percent and less than or equal to 0.3 weight percent of trace elements, namely barium, zirconium, germanium, beryllium, magnesium, potassium, scandium, vanadium, chromium, cobalt, nickel, gallium, niobium, molybdenum, technetium, palladium, silver, indium, tin, antimony, hafnium, tantalum, tungsten, platinum, manganese, iron, aluminum, sodium, titanium, silicon and copper. The material can be nano-scale, warming articles can be prepared by adding the material into clothes and quilts in the process of producing the clothes and the quilts, and the material has good effects of improving sleeping, promoting blood circulation and the like.
Owner:李国锋
Rope-Plug Linkage Landscape Anchors for Falling Dangerous Rock Prevention
ActiveCN105113521BProtect steady stateImprove construction progressExcavationsBulkheads/pilesEngineeringSteel bar
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Method for evaluating influence of parent rock on reservoir physical properties
ActiveCN110118720ADescribe the differenceWeather/light/corrosion resistanceFree coolingHanging basket
The invention provides a method for evaluating the influence of parent rock on reservoir physical properties. The method comprises the following steps of: 1) selecting a representative rock sample according to the rock type distribution of a target reservoir and cutting into a block shape; 2) placing the rock sample into a hanging basket of a reaction kettle, adding an acid liquid and sealing; 3)carrying out temperature programming to target temperature and pressure and reacting for 36-72 hours at the constant temperature and under constant pressure; and 4) after completing the reaction, naturally cooling the reaction kettle, taking out the sample and analyzing, wherein the shape of the rock sample after cutting is one of a cube, a cuboid or a cylinder. The method has the beneficial effects that a new idea is provided for the analysis of the influence of the parent rock on the reservoir physical properties; and a foundation can be laid for the exploration of high-quality reservoirs byutilizing data of rock debris types and contents and the like in the research area and by combining with the actual temperature and pressure conditions.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Method for making cement sample for simulating pore characteristics of original rock
InactiveCN105277405BEasy to prepareImprove efficiencyPreparing sample for investigationPorosityPolyvinyl alcohol
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Method for simulating the quantity and the quality of the hydrocarbons from a sedimentary basin
ActiveUS11226325B2Easy to predictReduce disadvantagesEarth material testingFluid removalHydrocotyle bowlesioidesReaction rate
Owner:INST FR DU PETROLE
A method for treating landscape water with a treatment agent
ActiveCN105600897BPrevent leakageEfficient removalWater/sewage treatment by flocculation/precipitationTherapeutic effectTotal nitrogen
Owner:SOUTHWEST UNIV +1
A Physical Tracing Method for Measuring Displacement Flux in Shale Tillage
InactiveCN107860891BAccurate measurementSolve the problem that it is difficult to measure the amount of tillage erosionEarth material testingSoil scienceErosion rate
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
An anti-crack protective support structure for suspended dangerous rock mass
Owner:北京岩土工程勘察院有限公司
A Method for Evaluating the Influence of Parent Rock on Reservoir Physical Properties
ActiveCN110118720BDescribe the differenceWeather/light/corrosion resistanceHanging basketRock sample
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Construction method for converting dangerous rock treatment blasting material into dam filling-level burdening
The invention discloses a construction method for converting dangerous rock treatment blasting material into dam filling-level burdening. The construction method comprises the following steps that 1),slope cutting construction is carried out through a deep hole bench blasting method, and sloping is carried out on trailing edge mother rock; 2), blast hole drilling operation is performed by using adrilling machine, and the blast hole drilling angle is the same as the designed slope angle; 3), the blast holes are filled with explosives in an interval charging mode, and detonating is carried outby adopting a single-hole single-sound detonation network; and 4), after layered and sectioned excavation, the blasting slag materials are transferred through a dump truck, and the blasting slag materials are pushed to a material taking platform through a bulldozer. By the adoption of the method, the purpose of changing blasting gradation is achieved by optimizing blasting parameters, the proportion of large-diameter stones after blasting is increased, and when the large-diameter stones are blasted and pushed to the material taking platform, stone sources meeting other construction projects are formed by means of collision of the large-diameter stones, and the purpose of directly applying the blasting slag materials to dam construction can be achieved.
Owner:CHINA GEZHOUBA (GRP) FIRST ENG CO LTD
Discriminating method for utilization of tunnel waste slag as building material aggregate
ActiveCN111965325AIncrease profitReduce tunnel spoilSolid waste managementWithdrawing sample devicesSlagMining engineering
The invention relates to a discriminating method for utilization of tunnel waste slag as building material aggregate. The method comprises the following steps of: acquiring a first tunnel rock samplealong a railway to be constructed; performing a rock sample test on the first tunnel rock sample to obtain geological mapping data and a surrounding rock grade, the geological mapping data including engineering geological characteristics, structural characteristics, a complete state and surrounding rock stability; preliminarily determining an available surrounding rock target range based on the geological mapping data and the surrounding rock grade; sampling the surrounding rock in the target range to obtain a second tunnel rock sample; and based on the mother rock strength, the alkali activity, the stone powder content and the crushing index of the second tunnel rock sample, determining tunnel waste slag capable of being used as building material aggregate. The technical scheme of the embodiment of the invention is suitable for the early-stage design stage of railway engineering, the design quality and accuracy are improved, the waste slag utilization rate is increased, and the influence of railway construction on the environment is reduced.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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