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Sandy gravel stratum catastrophe grouting prevention and control virtual-real blending collaborative test method and system
The invention relates to the technical field of grouting simulation tests, in particular to a sandy gravel stratum catastrophe grouting prevention and control virtual-real blending collaborative test method and system, and the method comprises the steps: carrying out a grouting test on a sandy gravel stratum simulation model, and obtaining grouting parameters and monitoring parameters in the grouting process; based on the resistivity and the radar data, further obtaining a slurry diffusion path and a diffusion range of the area with the higher surrounding rock grade; based on the resistivity and the optical fiber sensing data, the slurry diffusion path and the diffusion range of the area with the low surrounding rock grade are further obtained; inputting the initial grouting parameters into the trained neural network model to obtain simulation data; carrying out preprocessing and alignment operation on the previous data, and carrying out fusion analysis; and according to the fusion analysis result, grouting equipment parameters and a grouting scheme are pre-controlled and adjusted. And real-time regulation and control of a grouting scheme and equipment are realized.
Owner:SHANDONG UNIV
Ecological restoration method for mine slope
The invention relates to the technical field of mine side slope restoration, in particular to a mine side slope ecological restoration method which comprises the following steps: S1, performing field investigation and evaluation, and performing comprehensive surveying and mapping on the landform of a mine side slope by using a high-precision surveying and mapping instrument; the anti-seismic effect and the prevention and control of water and soil loss are prominent, the anti-seismic performance is enhanced through deep rock mass anchoring reinforcement, large-diameter and high-strength anchor cables are adopted, bed rock is deeply stabilized, prestress is applied, the integrity of the rock mass is enhanced, reinforced concrete anti-sliding piles are arranged near potential sliding surfaces, the anti-sliding capacity is improved, and the anti-seismic effect is achieved. When a damping ditch is dug between a slope top and a blasting area, loose gravel is filled to weaken vibration energy, the anti-seismic performance of the side slope is comprehensively improved, and water and soil loss is prevented, a drainage system is constructed to intercept surface water, vegetation is reasonably configured, planting grooves and fish-scale pits are arranged, an ecological restoration composite structure layer is built, and a grass spraying and planting and vine climbing system is combined. And water and soil loss is reduced through multiple measures.
Owner:YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION
Grouting method and system for enhancing stability of strip mine slope
PendingCN120805600AFoundation testingDesign optimisation/simulationClassical mechanicsStructural engineering
The invention discloses a grouting method and system for enhancing strip mine slope stability, and belongs to the technical field of slope protection. The grouting method comprises the steps that early-stage data are pre-collected, and an analysis model is established; grouting is designed according to a model analysis result; a pressure-resistant grouting pipe is installed and connected with a grouting pump; grouting parameters are adjusted in real time according to feedback of the sensor; after grouting, all data in the grouting holes are analyzed; outputting a slurry permeation three-dimensional cloud picture, a stress change curve and a stability evaluation index; and storing all monitoring data and model parameters. A cyclic self-adaptive system is formed, it is ensured that the grouting process is efficient and accurate, the overall stability is improved for heterogeneous rock mass, dependence on a static geological report is reduced, and therefore the problem that grouting parameters depend on engineering experience or conservative of the static report is avoided.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST
Vacuum preloading soil settlement prediction and control method based on deep learning
ActiveCN120541442AControllers with particular characteristicsNeural learning methodsControl cellEngineering
The invention discloses a vacuum preloading soil settlement prediction and control method based on deep learning, and aims to realize precise prediction and dynamic closed-loop control of soil settlement. According to the method, an encoder-decoder architecture is adopted to construct a model framework, and off-line generation of a proprietary model is completed through multi-measurement-point space-time joint training and a combinatorial optimization strategy; multi-source data of a target monitoring point is collected and processed to generate a sequence sample of an adaptive model; in order to adapt to the time-varying characteristics of the geological attributes, deploying an incremental online learning mechanism, and solidifying and finely tuning model parameters through an elastic weight; and based on a prediction result of the updated model, a PID control unit calculates a vacuum degree adjusting amount, a vacuum pump control system is driven to dynamically adjust the operation vacuum degree, and it is ensured that soil settlement is within a reasonable range. Finally, a cooperation mechanism of high-precision settlement prediction and dynamic vacuum degree regulation and control is constructed, and the settlement control precision, the response speed and the construction safety are remarkably improved.
Owner:HUAQIAO UNIVERSITY +1
Method for improving microorganism sand consolidation strength based on modified plant fibers
The invention belongs to the related technical field of microbiological treatment of soil, and discloses a method for improving microbiological sand consolidation strength based on modified plant fibers. Natural plant fibers are subjected to alkali treatment modification, so that non-cellulose components on the surfaces of the natural plant fibers are removed, the roughness and the specific surface area are remarkably improved, the interface friction force and the mechanical connection capacity between the fibers and sand particles are enhanced, more nucleation sites are provided for microorganisms to induce calcium carbonate precipitation, and the content of calcium carbonate is increased. The strength of the solidified sandy soil can be effectively improved, and the biomineralization period is greatly shortened. Meanwhile, after the modified fibers are doped into the sandy soil, a three-dimensional interlaced fiber network structure can be formed in the material in combination with a microorganism induced calcium carbonate deposition (MICP) technology, and the cohesiveness among sand grains and the mechanical property of the overall structure are effectively improved. According to the solidification method, the solidification strength of the sand column is remarkably improved, the technology is simple, green and environment-friendly, and good engineering adaptability and popularization value are achieved in the field of sand solidification.
Owner:HUAZHONG UNIV OF SCI & TECH
Desert photovoltaic field rainwater resource utilization and sand land sand fixation integration method
The invention discloses a desert photovoltaic field rainwater resource utilization and sand fixation integration method, and relates to the technical field of desert control and new energy comprehensive utilization. The system comprises the following components: S1, photovoltaic panel array layout and rainwater collection system design, S2, sand stabilization vegetation optimization and configuration, S3, intelligent drip irrigation system construction and operation, and S4, sand ecological monitoring and optimization management. By means of the integration method, rainwater resources of the desert photovoltaic field are fully utilized, the rainwater resources are effectively collected and utilized by accurately analyzing the rainfall characteristics of the desert area and designing a reasonable photovoltaic panel angle and a rainwater collecting system, a stable water source is provided for the photovoltaic field, and meanwhile, by combining optimization and configuration of sand stabilization vegetation, the sand stabilization effect of the desert photovoltaic field is improved. The ecological environment of the sand land is improved, the vegetation coverage rate and the soil fertility of the sand land are improved, and aggravation of the desertification process can be prevented.
Owner:INNER MONGOLIA AUTONOMOUS REGION ACAD OF FORESTRY SCI
Intelligent construction control method, apparatus and system for mixing pile with split-grouting
The present invention provides an intelligent construction control method, apparatus, and system for splitting jet grouting mixing piles, relating to geotechnical engineering. The method includes receiving real-time perception information from a construction information self-perception system, which includes drilling depth, drilling rig output power, drill bit torque, drill rod axial force, and pore water pressure of the drill bit. This information is input into a trained machine-learning model for stratum information, establishing a nonlinear implicit correspondence relationship between the perception information and construction stratum conditions, and outputting real-time stratum state information. The real-time stratum state information is then input into a trained self-matching machine-learning model for optimal construction parameters, establishing a nonlinear implicit correspondence relationship between the stratum state information and optimal construction parameters, and outputting current optimal construction parameters. This invention enables real-time intelligent inversion of stratum information and dynamic self-optimization control of construction parameters.
Owner:SHANDONG UNIV +1
Intelligent double-liquid grouting system and grouting method
The invention discloses an intelligent double-liquid grouting system and a grouting method. The system comprises a liquid A stirring barrel, a liquid B stirring barrel, a double-liquid grouting pump, a slurry mixer, a PID (Proportion Integration Differentiation) regulating valve, a control system, a flow meter, a pressure meter, a flow sensor and a pressure sensor. The liquid A and the liquid B are respectively prepared and then sent out by a double-liquid grouting pump, enter a slurry mixer to be compounded and mixed, and are injected into a target stratum through a directional grouting pipe. The system collects and analyzes flow and pressure data through a control system, and closed-loop regulation and control of grouting flow and proportion are achieved through PID regulation logic. The PID regulating valve has the functions of over-voltage current limiting and overflow prevention at the same time. The method is suitable for reinforcement and leakage treatment under a complex stratum in geotechnical engineering, and has the advantages of being high in matching precision, high in mixing efficiency, good in safety, high in adaptability and the like.
Owner:MCC CHENGDU RES INST CO LTD
Pipe ditch backfilling and tamping system based on excavator modification
The invention relates to the technical field of earthwork compaction, and discloses a pipe ditch backfilling and tamping system based on excavator modification. The system comprises an earthwork condition dynamic sensing module which captures a bucket tooth track, a hydraulic oil cylinder pressure pulse and a soil mass vibration spectrum in real time and combines a historical database to construct a model to output a theoretical compaction degree curve; a multi-source compaction difference analysis module performs three-dimensional deviation detection on the theoretical curve and the actual settlement volume data to generate a construction grid-level compaction difference tensor; the defect area association mapping module inputs the tensor into a geological topology analysis network, generates a loose defect propagation path probability cloud chart by combining soil parameters and identifies weak sections; and the tamping strategy self-adaptive configuration module automatically sets operation parameters according to the cloud picture, activates high-precision monitoring on a high-probability defect section, and applies a dynamic excitation force test on adjacent grids, so that intelligent management and control of the backfilling and compacting process are realized.
Owner:CHINA CONSTR FOURTH ENG DIV INSTALLATION ENG
Transverse and longitudinal walking mechanism, multi-degree-of-freedom adjusting underwater leveling machine and construction method
The invention relates to the technical field of underwater leveling machines, in particular to a transverse and longitudinal walking mechanism, a multi-degree-of-freedom adjusting underwater leveling machine and a construction method. The transverse and longitudinal walking mechanism comprises an end part structure, and a first hole is formed in the end part structure in a penetrating manner; a first hole is formed in the end structure in a penetrating manner; at least part of the transverse moving frame is located in the first hole, and the transverse moving frame is in sliding fit with the end structure in the radial direction of the first hole; the walking longitudinal beam penetrates through the transverse moving frame in the length direction of the first hole and is in sliding fit with the transverse moving frame. The first vertical lifting supporting leg is connected with the end part structure; and the second vertical lifting support leg is connected with the walking longitudinal beam. According to the transverse and longitudinal walking-pedrail walking mechanism, the mode that the walking-pedrail longitudinal beam is sleeved with the transverse moving frame, the transverse moving frame is sleeved with the end structure, the transverse moving frame is used for replacing a transition frame of an existing walking-pedrail type leveling machine, and therefore the overall weight of the transverse and longitudinal walking-pedrail walking mechanism is effectively reduced.
Owner:CCCC FOURTH HARBOR ENG CO LTD +2
Scouring pile foundation reinforcing method based on MICP curing principle
The invention discloses a scouring pile foundation reinforcement method based on an MICP curing technology, which comprises the following steps: acquiring initial environment information such as scouring pit parameters, water flow parameters, tide period and seawater salinity of a delimited area around a pile, and determining grouting parameters such as a grouting window period and a safe flow velocity threshold value and a matching numerical value of a bacterial liquid concentration, a urea concentration and a calcium ion concentration; a grouting assembly composed of a first grouting pipe and a second grouting pipe which are spliced up and down is arranged, and grouting holes are formed in the side wall of the second grouting pipe which is pre-buried in a soil layer; after MICP slurry is prepared according to blending parameters, the slurry is injected into a soil layer in combination with grouting parameters, and meanwhile, the grouting process is dynamically adjusted by monitoring the resistivity of a soil body in real time; and after grouting is completed, the assembly is dismantled, and supplementary grouting is conducted on the local area according to the detection result. According to the method, the accuracy and reliability of pile foundation reinforcement are achieved through environmental parameter adaptation, grout dynamic regulation and control and layered detection and reinjection.
Owner:FUJIAN UNIV OF TECH
Intelligent rolling construction method and system for concrete face rockfill dam and computer readable storage medium
PendingCN120597537ADesign optimisation/simulationMulti-objective optimisationDynamical optimizationProtection mechanism
According to the intelligent rolling construction method and system for the concrete face rockfill dam and the computer readable storage medium, self-adaptive adjustment of the rolling speed and frequency is achieved through three-dimensional digital elevation model generation, optimal rolling path planning, rolling parameter dynamic optimization model and real-time compaction degree prediction. The system integrates satellite positioning, BIM model verification, cloud data management and an abnormal protection mechanism, can correct path deviation in real time, generates a pressure supplementing instruction and stores construction data, provides an intelligent solution for high-precision and high-reliability rock-fill dam construction, and is suitable for popularization and application. The technical problems that in traditional rolling construction, manual experience is relied on, parameters are static, monitoring lags behind, and the rework rate is high can be solved.
Owner:CHINA COMM 2ND NAVIGATIONAL BUREAU 2ND ENG +3
Dynamic compaction construction parameter optimization method based on XGBoost-PSO
The invention relates to the technical field of foundation treatment, in particular to a dynamic compaction construction parameter optimization method based on XGBoost-PSO, and the method comprises the steps: obtaining a plurality of groups of compaction settlement data through a compaction test; the method comprises the following steps: selecting original features from actual measurement parameters of a test, constructing interactive features by adopting the actual measurement parameters, selecting optimal interactive features according to the importance ranking of XGboost features, and analyzing the correlation between the features; based on the feature set obtained through screening, a compaction settlement prediction model is established; and performing dynamic compaction parameter optimization on the compaction settlement prediction model by using a particle swarm algorithm to finally obtain an optimal compaction parameter combination. According to the method, the tamping parameters are automatically searched and optimized on the premise that the tamping stopping standard is met by building the tamping settlement prediction model, and therefore the purposes of guaranteeing the construction quality, improving the construction efficiency and reducing the construction cost are achieved; the method is suitable for various foundation construction design stages needing dynamic compaction treatment, and has good engineering adaptability and popularization value.
Owner:CCCC FOURTH HIGHWAY ENG CO LTD +2
Multi-dimensional ecological low-carbon reinforcement method for coral sand soil body
The invention relates to a coral sand soil multi-dimensional ecological low-carbon reinforcement method which comprises the following steps: S1, a urease solution is sprayed on a coral sand single-particle soil layer, a cementing liquid A is sprayed after standing, the urease solution is extracted from legume plants, and the cementing liquid A is obtained by mixing a urea solution and a calcium chloride solution; s2, on the basis of treatment in the step S1, a sporosarcina pasteurii bacterial solution is firstly sprayed, after standing, a cementing solution B is sprayed, the cementing solution B is alternately and circularly sprayed for multiple times, and the cementing solution B is obtained by mixing a urea solution and a calcium chloride solution; s3, a 3D printing geosynthetic material is laid on the basis treated in the step S2; and S4, laying a coral sand single-particle soil layer on the basis of treatment in the step S3, and repeating the steps S1 to S3. According to the method, a single particle size-foundation unit size-engineering size reinforcing system is constructed, comprehensive reinforcing from a microscopic single particle to a macrostructure can be achieved, and the reinforcing effect and efficiency are effectively improved.
Owner:SHANGHAI MARITIME UNIVERSITY
Model test device and method for stratum excavation and grouting reinforcement
The invention relates to the technical field of underground engineering groove wall stability physical simulation, and discloses a model test device and method for stratum excavation and grouting reinforcement, and the model test device comprises a grooving construction module, a grouting support module and a dynamic monitoring module. The device adopts a pressing plate method to simulate a grooving excavation process, so that the device conforms to an actual excavation working condition from top to bottom; a servo motor drives a power lead screw to drive a model groove to move downwards, so that a free face is formed in a sand layer, and the actual excavation working condition is simulated; a water tank for storing fresh slurry is pressurized by using an air compressor, so that the slurry overflows from the hollow model groove section, and the permeation and invasion process of the slurry is simulated; and a water and soil pressure gauge and a matched acquisition device are arranged in the sand layer, and a soil displacement field is obtained by utilizing a particle image velocity measurement system, so that the visualization of the whole process of excavation-grouting-invasion is realized. It is ensured that simulation results are highly matched with actual working conditions, and accuracy and reliability are improved.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +2
Solid-waste-based fluid-state solidified soil and preparation method thereof
The invention provides solid-waste-based fluid-state solidified soil and a preparation method of the solid-waste-based fluid-state solidified soil. The solid waste-based flow state solidified soil comprises a filling material, a framework material and a reinforcing material, the filling material comprises the following components in parts by weight: 60-95 parts of engineering residue soil, 5-40 parts of alkaline waste residues, 5-30 parts of a cementing material, 1-10 parts of a polymer emulsion, 0.5-3 parts of silica fume, 0.1-1 part of cellulose ether, 0.1-1 part of a compound water reducing agent and 0.5-2 parts of an exciting agent. The framework material comprises waste concrete blocks and / or waste brick blocks; the reinforcing material comprises a waste safety net and / or fiber gridding cloth. The flow-state solidified soil can achieve rapid backfilling in a narrow space, is excellent in shrinkage cracking resistance and impermeability, simple in preparation method and convenient to apply and construct, effectively solves the problems that the flow-state solidified soil is large in shrinkage, prone to cracking and the like, improves the quality of a backfilling project, achieves in-situ resource utilization of construction waste, and reduces the construction cost. And the construction cost of engineering can be reduced, and the problems of land occupation, environment pollution and the like caused by solid waste stacking are reduced.
Owner:HUNAN UNIV +1
Alkali-resistant urease-producing microbial flora for biomineralization of construction joints and preparation method of alkaline-resistant urease-producing microbial flora
The invention relates to the technical field of biomineralization, and particularly discloses an alkali-resistant urease-producing microbial flora for biomineralization of construction joints and a preparation method of the alkali-resistant urease-producing microbial flora. The microbial flora disclosed by the invention is prepared from the following strains with relative abundance: 4.4 to 5.2 percent of bacillus, 0.39 to 0.46 percent of enterococcus, 4.8 to 5.7 percent of alcaligenes, 0.50 to 0.58 percent of cellulomonas, 22.4 to 24.2 percent of lysobacter, 1.7 to 2.4 percent of pseudomonas, 10.8 to 11.9 percent of Savagea, 15.1 to 16.2 percent of sarcina, 30.8 to 32.2 percent of chloridomonas and 0.41 to 0.48 percent of bacillus. The alkali-resistant microbial compound flora with high urease activity in the limited oxygen and normal environment can effectively overcome the defects that urease microorganisms are low in mineralization efficiency under the anoxic condition, and the strength of an obtained consolidated body is not high.
Owner:BEIJING ZHONGJIAN CONSTR RES INST CO LTD +4
Solar-heated anti-frost heaving drainage roadbed in seasonal frozen area and construction method thereof
InactiveCN120099829ASolar heating energySolar heat collector controllersStructural engineeringFeedback analysis
The invention relates to the field of new-generation information technology and civil engineering, in particular to a frost heaving prevention technology of a roadbed in a seasonal frozen area, and particularly relates to a solar heating frost heaving prevention drainage roadbed in the seasonal frozen area and a construction method of the solar heating frost heaving prevention drainage roadbed. The method comprises the steps that environment sunlight data are obtained based on a solar heat collection device, heat energy is stored through an efficient heat storage material, and a heat energy output sequence is generated; acquiring soil temperature, humidity and frost heaving stress data from an environment sensor, predicting a frost heaving trend in combination with historical frost heaving characteristics, and generating regulation and control parameters; the heat energy output sequence and the frost heaving regulation and control parameters are input into a dynamic temperature control and drainage linkage module, heat distribution and optimization adjustment of a drainage path are carried out, and a linkage control strategy is generated; and performing feedback analysis on the operation condition of each module based on the data, and optimizing the control parameters of the dynamic temperature control and drainage linkage module. The temperature and humidity of the roadbed can be accurately adjusted, the frost heaving phenomenon is prevented, and roadbed drainage is optimized.
Owner:侯尚江
Reinforcing device for slope protection and treatment
Owner:SICHUAN PROVINCIAL INST OF COMPREHENSIVE GEOLOGICAL SURVEY & RES +1
Intelligent control method and system for double-wheel milling and deep stirring equipment
According to the intelligent control method and system for the double-wheel milling and deep stirring equipment, geological data of a construction area are obtained through preset stratum detection equipment, geological data corresponding to a construction groove section are determined, and the tunneling speed is intelligently adjusted in combination with the milling wheel torque monitored in real time and the current tunneling depth. According to the method, speed adjustment is carried out according to milling wheel torque data, tunneling depth and stratum geological data, meanwhile, associated data of the tunneling depth and the speed are generated, and finally cement paste is injected into a groove section when equipment is lifted. According to the intelligent control method, construction parameters can be adaptively adjusted according to different geological conditions, the milling efficiency and precision are effectively improved, equipment abrasion is reduced, and the service life of equipment is prolonged. Through the combination of real-time data monitoring and intelligent parameter adjustment, the method realizes the accurate control and optimization of the construction process of the milling and deep stirring equipment, and provides more efficient and reliable technical support for the construction of the cement-soil continuous wall.
Owner:TIANJIN JINKAN GEOTECHNICAL ENG CO LTD
Method and system for repairing foundation in offshore pile inserting and pulling area based on soil gradation optimization
The invention discloses an offshore inserting and pulling pile area foundation repairing method and system based on soil gradation optimization, and relates to the technical field of foundation repairing. The method comprises the steps that disturbed soil and undisturbed soil samples of an offshore inserting and pulling pile construction area are collected, a soil combination mode of a disturbed area is established, and soil of the disturbed area is configured; the total bearing capacity requirement and the pile shoe mud entering depth of the mobile platform are obtained, and the pile pitching bearing capacity requirement is calculated; with the pile pitching bearing capacity requirement as an optimization target, a bearing capacity evaluation function is configured, optimization analysis of filler grading is carried out, and an optimization analysis result is established; and the filler proportion and the particle mixing mode are controlled according to the optimization analysis result, and offshore pile inserting and pulling area foundation repairing is completed through the layered backfilling and vibration compaction technology. The technical problem that in the prior art, pile sliding and other potential safety hazards exist in a platform due to the fact that the strength of well site disturbed soil is reduced due to repeated pile inserting and pulling construction is solved, and the technical effects of improving the foundation mechanical property of a disturbed area and guaranteeing safety and stability of platform operation are achieved.
Owner:OCEAN UNIV OF CHINA
Nutritional moisturizing ceramsite as well as preparation method, application and application method thereof
InactiveCN120081706AAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersSoil fertilityPlant growth
The invention provides nutritional moisturizing ceramsite as well as a preparation method, application and an application method.The method comprises the following steps: firstly, uniformly mixing sieved power plant fly ash with commercial cement, solid nutrition powder and coal gangue powder, and adding hydrogen peroxide to obtain porous ceramsite; the preparation method comprises the following steps: adsorbing a nutritional agent by porous ceramsite, wrapping the porous ceramsite with phosphorylated chitosan, carrying out hydroformylation and alkynylation, and reacting with the modified microcapsule to obtain the nutritional moisturizing ceramsite. The invention also provides an application of the nutritional moisturizing ceramsite in desertification soil improvement. According to the application method of the nutritional moisturizing ceramsite in desertification soil improvement, the nutritional moisturizing ceramsite is divided into large, medium and small ceramsite according to the particle size, and directly covers a desertification land to form a nutritional moisturizing ceramsite layer in a big-end-up form, a uniform form, an interlayer form, a mixed form or a uniform mixing form. The nutritional moisturizing ceramsite prepared by the invention can improve soil fertility and promote plant growth.
Owner:ORDOS INST OF APPLIED TECH
Degenerated grassland in-situ remediation system based on three-dimensional spatial layering
The invention discloses a degraded grassland in-situ remediation system based on three-dimensional space layering, and relates to the technical field of degraded grassland remediation, the degraded grassland in-situ remediation system comprises a high-altitude energy collection area, an earth surface vegetation remediation area and an underground rainwater storage and use area, the ground vegetation restoration area comprises an energy storage device, a rainwater collection barrel and a rotary sprinkling irrigation machine, and the underground rainwater storage and use area comprises a reservoir and a water transportation and distribution pipeline network. Rainwater can be completely collected and distributed according to needs; meanwhile, the composite solar panel constructed in a layered mode is used for shading, sunlight is collected, and adjustable shading is conducted on the plants.
Owner:SHIJIAZHUANG INST OF AGRI MODERNIZATION CHINESE ACAD OF SCI
Method for ecological management of Tenggri desert by using photovoltaic power and pasture
The invention provides a method for carrying out ecological management on the Tenggri desert through photovoltaic and pasture. The method comprises the steps that S1, a photovoltaic panel intensive water irrigation system is built; s2, land leveling and improvement, wherein land under the photovoltaic panel intensive water irrigation system is leveled, fertilized and improved; s3, planting: sowing Tenggri desert indigenous plant ecological bags under a photovoltaic panel intensive water irrigation system; the Tenggri desert indigenous plant ecological bag comprises the following plants: caragana microphylla, salix psammophila, sophora alopecuroide, artemisia selengensis, elymus dahuricus, agriophyllum squarrosum, astragalus adsurgens, kochia scoparia and mongolian wheatgrass; a photovoltaic panel intensive water irrigation system and special forage grass are combined to comprehensively control desertification, power generation and ecological management complement each other, multiple ecological benefits of land improvement, sand stabilization and land reclamation, wind and sand suppression and vegetation restoration are achieved while power generation is performed, high-quality forage grass can be provided, animal husbandry development is promoted, and economic and ecological benefits are improved. In addition, compared with a traditional irrigation mode, water can be saved by 30-70% through drip irrigation.
Owner:INNER MONGOLIA GRASSLAND TECHNOLOGY INNOVATION CENTER CO LTD +1
Composite foundation settlement calculation method considering karst rock-soil interface grouting
The invention relates to a composite foundation settlement calculation method considering karst rock-soil interface grouting, which is characterized in that n layers of covering layers are arranged on a limestone karst area, the thicknesses of soil layers are respectively h1, h2,..., hn, the compression moduli of the corresponding soil layers are respectively Es1, Es2,..., Esn, the pile length of a composite foundation reinforcing pile is L, and the m layer is reinforced; the distance between the bottom face of the reinforcing pile group and the bottom face of each soil layer is Zm, Zm + 1,... and Zn, after karst grouting is considered, the compression modulus increasing coefficients of the soil layers above the bedrock face are lambda1, lambda2,... and lambdan, the lambdan is larger than or equal to 1.0, and the total settlement of the composite foundation is the product of the sum of the settlement S1 of the reinforcing area and the settlement S2 of the underlying layer and the settlement experience correction coefficient ms. According to the method, a composite foundation settlement calculation formula is improved, the soil layer compression modulus improvement coefficient lambda is introduced into the settlement calculation process, the synergistic effect of karst grouting and composite foundation reinforcement is comprehensively considered, and the settlement calculation precision of the high-speed rail karst roadbed composite foundation is remarkably improved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD +1
Composite material grouting system for wind power plant foundation reinforcement
The invention relates to the technical field of geotechnical engineering, and discloses a composite grouting system for wind power plant foundation reinforcement, which comprises a vehicle body, the bottom of the vehicle body is rotatably connected with a long shaft, the two ends of the long shaft are fixedly connected with rollers, the top of the vehicle body is fixedly connected with a storage tank, one side of the outer wall of the vehicle body is fixedly connected with a motor, and the motor is fixedly connected with the storage tank. The output end of the motor is fixedly connected with a spiral electronic scale, the input end of the spiral electronic scale communicates with the output end of the storage tank, the output end of the spiral electronic scale communicates with a grouting pump, the output end of the grouting pump communicates with the outside, and a grouting system is installed in the vehicle body. The grouting pressure and the grouting flow are controlled through the grouting pumping module, so that stratum gaps are fully filled with grout, the compactness and the bearing capacity of a foundation are improved, the stability of the grouting flow is guaranteed, the problems that the grout blocks a pipeline or the pressure fluctuation is too large are solved, and the continuity and the safety of grouting construction are guaranteed.
Owner:HUANENG (DALIAN PULANDIAN) RENEWABLES CO LTD
Construction flatness compaction degree detection method and system
The invention provides a method and a system for detecting construction flatness and compactness, which are applied to the field of measurement data processing. The compaction degree in the construction process is detected in real time on the basis of the preset electromagnetic induction sensor of the road roller, the problem that construction parameters cannot be adjusted in time by relying on sampling inspection after construction is completed in a traditional method is solved, electromagnetic parameters (such as electrical conductivity, dielectric constant and magnetic conductivity) are collected and matched with the compaction state of the construction ground, and the construction quality is improved. According to the method, the soil compaction condition is evaluated in real time, when insufficient compaction is found, the additional rolling times are automatically calculated, and the operation parameters of the road roller are dynamically adjusted according to the compaction distribution thermodynamic diagram, so that the construction precision and efficiency are improved, the condition of excessive compaction or insufficient compaction can be avoided, rework and resource waste are reduced, and the construction efficiency is improved. And real-time data feedback and automatic adjustment functions are provided, and intelligent management of the construction process is realized, so that the construction quality and the resource utilization rate are greatly improved.
Owner:SHENZHEN BODA CONSTR GRP CO LTD
Seabed sand excavation pit repair control method and system based on marine dredged mud
The invention relates to the technical field of seabed sand excavation pit repair, and discloses a seabed sand excavation pit repair control method and system based on marine dredged mud. The method comprises the steps that surveying and mapping and environment analysis are conducted on a seabed sand excavation pit, three-dimensional topographic data are obtained, and dredged mud is improved; formulating a filling scheme based on data analysis, and establishing a barge and pipeline combined transportation system; filling materials layer by layer, and tamping and grouting; a three-layer protection structure is constructed, and a gabion mesh cage and an energy dissipation device are additionally arranged in a high-risk area; and the restoration effect is evaluated by monitoring the network to form an evaluation database. According to the method, marine dredged mud is used as a main material, and efficient and stable repairing of the seabed sand excavation pit is achieved through scientific improvement treatment and layered filling technologies in combination with multi-layer protection measures and a perfect monitoring and evaluating system.
Owner:SOUTH CHINA SEA PLANNING & ENVIRONMENT RES INST SOA
Reinforcing method for long-term automatic grouting repair of fractured rock mass
The invention discloses a reinforcing method for long-term automatic grouting repair of fractured rock mass.The reinforcing method comprises the steps that a pressure sensor is arranged at the tail end of a grouting opening, and data of the pressure sensor are obtained through an intelligent control system; when the intelligent control system monitors that pressure difference is generated due to pressure unbalance caused by surrounding rock fracture development, the intelligent control system sets grouting parameters and starts a grouting program; in the grouting process, pressure balance between equipment and surrounding rock is maintained through a pressure adjusting module, and it is ensured that grout is stably conveyed within the set pressure range all the time in the conveying process after a grouting program is started; grouting pressure and flow are controlled in the grouting process; in the grouting process, the bacterial liquid and the cementing liquid are input in a separated conveying and on-site gathering mode; and accumulated liquid in the pipeline is rapidly removed after grouting is finished. By adopting the method, cracks can be continuously monitored and periodically repaired, and the manual intervention requirement is reduced. The modular design is convenient for maintenance and replacement of equipment, and the maintenance cost is reduced.
Owner:SHANTOU UNIV +1
Self-adaptive settlement monitoring and compensation construction integrated system
PendingCN120651189AHeight/levelling measurementIn situ soil foundationAnalytic modelPrediction algorithms
The invention discloses a self-adaptive settlement monitoring and compensation construction integrated system, and belongs to the technical field of foundation settlement monitoring and compensation integration. The system comprises a monitoring module, an intelligent control module, a compensation construction module and a digital twinning module. The monitoring module comprises a settlement sensor group, a stress sensor, a three-dimensional displacement sensor and a micro geological radar which are arranged according to a bionic root topology; the micro geological radar realizes layered scanning in an underground range by adopting a multi-band synthetic hole technology; the intelligent control module comprises an integrated settlement prediction algorithm, a multi-stage early warning unit and a seepage-stress coupling analysis model. The output end of the seepage-stress coupling analysis model and the compensation construction module form closed-loop control. The drainage efficiency is remarkably improved through intelligent association of the flow guide pipe and the pore water pressure, the digital twin module constructs a multi-source data interaction platform, dynamic mapping of a physical entity and a virtual model is achieved, the settlement control precision can be improved, and meanwhile the construction cost is reduced.
Owner:CHINA MCC17 GRP CO LTD