175 results about "Weathering" patented technology

The invention relates to the technical field of process data analysis and processing, and discloses a coal-based solid waste recycling full-process intelligent management and control platform and a digital twin system. The platform is characterized in that an identification module identifies a coal-based solid waste mineral phase through a ray diffractometer to obtain mineral composition classification data; the construction module constructs a digital twinborn model based on the classification data, simulates a dissolution reaction, and obtains weathering soil formation process data; the establishment module establishes a pollutant migration prediction model according to the process data to obtain environmental risk data; the optimization module optimizes the risk data through an improved particle swarm-genetic hybrid algorithm to obtain a resource path scheme; and the adjusting module adaptively adjusts the process parameters based on the path scheme to obtain a whole-process management and control instruction. The problems that accurate mineral phase recognition and intelligent classification are lacked in the coal-based solid waste recycling process, and a dynamic prediction model cannot be constructed and a weathering soil forming process cannot be simulated in real time based on mineral composition data are solved.

The invention provides a prospecting method and system based on rock fragmentation degree characterization tectonic stress, relates to the technical field of geological exploration, and aims to solve the problem of low prediction precision of a mining area in the prior art. Comprising the following steps: acquiring image data and sample data of a to-be-predicted region; constructing a first inversion model based on the sample data, and performing inversion on the to-be-predicted region based on the first inversion model and the hyperspectral image to obtain a spectral index of a target geologic feature factor of the to-be-predicted region; the target geological characteristic factors comprise crystallinity, alteration component concentration and weathering degree; performing data fusion on the crack features extracted from the high spatial resolution image and the spectral index of the target geologic feature factor to obtain a feature matrix; inputting the feature matrix into a second inversion model, and determining a target mining area of the to-be-predicted area; the second inversion model is a tectonic stress field inversion model pre-constructed based on the graph convolutional neural network. Therefore, the prediction precision of the mining area can be improved.

The invention discloses a construction method applied to underground mine vertical shaft surrounding rock condition improvement. The construction method comprises the steps that a flat working face is cleaned, a temporary water nest is arranged for drainage, the drilling position is projected, and a down-the-hole drill is debugged; rock drilling is conducted according to the designed angle, direction and depth, propelling pressure is adjusted along with the depth, and cleaning and plugging are conducted after hole forming; grouting pipes with holes are used as pipe sheds to be driven into the holes, and are welded into a whole through annular steel bars; single-liquid-slurry and double-liquid-slurry segmented grouting is adopted, and the grouting pressure is controlled; during construction, grout diffusion and stratum deformation are monitored, after surrounding rock consolidation reaches the standard, weak blasting is matched with a small excavator for excavation, and after acceptance inspection is qualified, reinforcing steel bars are bound, formworks are installed, and concrete is poured. Compared with the prior art, the problems of collapse and water gushing of the vertical shaft under the strong weathering and water-rich geology can be solved, and the defects of insufficient supporting strength, grouting uniformity, construction efficiency and long-term stability in the traditional technology are overcome.

The invention relates to the technical field of digital core modeling and artificial intelligence modeling, in particular to a weathered sandstone microscopic image generation method based on a conditional generative adversarial network, which comprises the following steps: acquiring and analyzing sandstone samples with different weathering degrees to construct a weathered sandstone multi-scale database; performing weathering geological knowledge extraction on the weathered sandstone multi-scale database to construct a sandstone feature tag set; and training the conditional generative adversarial network by using the sandstone feature tag set to obtain a weathered sandstone microscopic image generation model, and generating a weathered sandstone microstructure image with physical consistency by using the weathered sandstone microscopic image generation model. Therefore, the problems that in existing weathered sandstone physical and mechanical property modeling, the depth incidence relation between the microstructure and the macro-mechanical property is difficult to reveal, and a traditional modeling method is difficult to effectively fuse the advantages of a weathering geological mechanism and modeling generation, so that a reconstruction result lacks physical consistency and weathering response rationality are solved.

The utility model discloses an embankment reinforcing structure for a water conservancy project, which belongs to the technical field of embankment reinforcing for the water conservancy project and comprises an embankment, a plurality of planting grooves are formed in the front surface of the embankment, a water storage tank is fixedly connected to the bottom surface of the embankment, a drainage groove is fixedly connected to the front surface of the embankment, and a screen is fixedly connected to the inner wall of the drainage groove. The bottom face of the drainage groove fixedly communicates with a plurality of flow guide pipes, the end, away from the drainage groove, of each flow guide pipe penetrates through the water storage tank and extends into the water storage tank, and the back face of the water storage tank is fixedly connected with a water suction pump. The embankment reinforcing structure for the water conservancy project has a rainwater collecting and recycling function, can irrigate embankment soil fixing vegetation of the water conservancy project in time, prevents the embankment soil fixing vegetation of the water conservancy project from death in a large area due to drought, and further makes embankment soil of the water conservancy project not prone to desertification and weathering; and the protection performance of the water conservancy project dike reinforcing structure and the protection effect on water conservancy project dike soil fixing vegetation are improved.

The invention relates to the technical field of slope seismic resistance, and discloses an engineering slope seismic stability optimization method and system, and the method comprises the steps: collecting flood discharge tunnel outlet slope data and seismic oscillation parameter values, and carrying out the partitioning according to the flood discharge tunnel outlet slope general situation data; analyzing rock mass weathering and unloading and physical geology phenomena in each area to obtain physical mechanical parameter suggestions; establishing a three-dimensional model of the flood discharge tunnel outlet slope based on the physical and mechanical parameter suggestions and the seismic oscillation parameter values; inputting the non-uniform seismic dynamic load into the three-dimensional model of the flood discharge tunnel outlet slope for analog calculation; establishing a side slope geomechanical model, and performing simulation verification; and comparing the simulation verification result of the side slope geomechanical model with a preset rule threshold value, if the simulation verification result of the side slope geomechanical model is greater than the preset rule threshold value, performing early warning, uploading the simulation verification result of the side slope geomechanical model to a cloud platform, and performing visual output. According to the invention, comprehensive analysis and management of the flood discharge tunnel outlet slope under the earthquake effect are realized.

The invention discloses an experimental method for improving expansive soil based on microorganism-mineral interaction, which utilizes the physiological characteristics of microorganisms to interact with montmorillonite and other minerals of the expansive soil, promotes the montmorillonite minerals to be weathered into non-expansive minerals, and reduces the content of montmorillonite in the expansive soil, thereby reducing the expansive property of the expansive soil and improving the expansive soil quality. The problems that the expansion and shrinkage of the expansive soil are not thoroughly improved through a microbial technology, calcium ion deposition is not easy to control, and long-term stability is poor are solved. Meanwhile, compared with a traditional expansive soil chemical improvement method, the method adopts a microbial technology, does not need to add a large number of chemical agents, and is low in cost, environmentally friendly, simple in test step and easy to popularize and apply.

The invention provides a soil improvement and saline-alkali water spray irrigation method suitable for a saline-alkali beach. The method comprises the following steps: reclamation and field building, dike building and tide blocking: building and enclosing a mud flat area needing reclamation and planting in the earlier stage to prevent further erosion of saline-alkali water; constructing water guide systems such as a reservoir and a drainage ditch; after the soil is slightly aired, turning over and loosening the soil in the beach area, doping desulfurized gypsum (calcium sulfate), charcoal and a high-molecular water-retaining material into the soil, and fully mixing and uniformly stirring to form a water-retaining layer and provide nutrition for vegetation; sowing the seeds in a planting area according to the density requirement; finally, spraying a layer of macromolecular binding material on the surface to prevent weathering and saline-alkaline water erosion and slow down migration of salt to the planting layer; during irrigation, red soil is poured into the reservoir, saline-alkali water is introduced for stirring and standing for a period of time, then mixed muddy water is used for irrigation, and sprinkling irrigation is adopted for irrigation so as to slow salt infiltration into the earth surface; when the rainfall period is up, rainwater can be used for watering and washing off salt crystals on the earth surface. According to the method, rich mud flat resources in China are fully developed and utilized, the saline-alkali water serves as an irrigation water source, the problems of complex water diversion, troublesome salt leaching, fresh water deficiency, too high cost and the like of a traditional method are solved, the land utilization benefit and the agricultural production level are greatly improved, and the influence of salt on plants is relieved; the restoration of the ecological environment and the improvement of the agricultural production level are promoted.

The invention discloses a method for manufacturing a simulated earthen ruins rammed earth test wall based on original diseases, and relates to the field of earthen ruins protection and restoration. The method comprises the following steps: step 1, determining earthen archaeological site diseases to be researched and preparing materials; 2, mold assembling and disease marking are carried out; 3, layered ramming is conducted; step 4, crack disease processing; step 5, performing undercutting disease processing; 6, weathering disease processing; step 7, processing rain erosion diseases; and step 8, northwest environment simulation. The earthen archaeological site rammed earth wall is manufactured by integrating multiple disease collaborative simulation technologies of fissure, undermining, weathering and rain erosion, meanwhile, adaptability design of a strong wind erosion area, a strong sunshine area and a strong salinization area is made for northwest arid areas, and the method has the core advantages of disease reproduction authenticity, standardized grading, environment adaptability and the like; a scientific and reasonable technical means is provided for earthen archaeological site protection engineering, and a reliable test piece is provided for research and development of a protection technology.

The invention relates to the technical field of stratified rock mass numerical simulation, and discloses a stratified rock mass numerical simulation method based on a hybrid progressive failure model, and the method comprises the steps: obtaining an engineering rock mass structural plane of a research area, and grading geological structural planes such as faults, rock veins and fractures of surrounding rock of an underground cavity based on structural plane features; through three-dimensional laser scanning, obtaining the spatial three-dimensional coordinates of each sampling point on the surface of the footrill, obtaining the point cloud of a measured object, and connecting adjacent discrete points; carrying out secondary sampling on the spliced point cloud data, carrying out plane fitting to obtain a structural plane occurrence, and constructing a footrill simulation model; analyzing the occurrence of the structural surface by the footrill simulation model to obtain a stratified rock mass value, and dividing the structural surface in the rock mass into a rigid structural surface and a weak structural surface according to the character, weathering degree, tightness degree and filler condition; and outputting the data to a cloud platform. According to the invention, manual intervention is reduced, and the safety, accuracy and efficiency of measurement are improved.

The invention provides a method for controlling the surrounding rock stability of a weathered and expanded soft rock roadway, and belongs to the technical field of underground mine roadway surrounding rock control. The method comprises the following steps: spraying a macromolecular waterproof material on the whole section of the surrounding rock surface of the roadway to form a water-resisting layer to prevent water vapor from infiltrating into the surrounding rock; a graded supporting structure is arranged in a roadway, and an active supporting layer with shallow anchor rod reinforcement and deep anchor cable suspension cooperating with each other is formed; spraying steel fiber reinforced concrete on the surface of the active support layer of the roadway to form a passive support layer coupled with the active support layer; the bottom face of the roadway is excavated into an arch wave face, a plane corresponding to the arch wave face is an arch plate face, an anti-arch space is defined by the arch wave face and the arch plate face, gravel concrete is poured into the anti-arch space, and an anti-arch structure is formed at the bottom of the roadway. The method can effectively control deformation and instability of the surrounding rock, solves the problems of waterproof failure, support system mismatch and floor heave out-of-control of the easily-weathered expansion soft rock roadway, and realizes long-term safety and stability of the easily-weathered expansion soft rock roadway.

The invention discloses a method for rapidly simulating the weathering characteristic of coal gangue, and belongs to the technical field of solid waste treatment. The method comprises the following steps: 1) putting coal gangue into a tray with water permeable holes in the bottom, and then putting the tray into a water tank for 18 hours; (2) the obtained coal gangue is dried, the initial temperature is 40 DEG C, the coal gangue is heated to 80 DEG C within 3 h, heat preservation continues to be conducted for 3 h, and the coal gangue is cooled to the room temperature; (3) repeating the steps (1) and (2) for 10-60 days, and quickly simulating the weathering of the coal gangue; and (4) judging the weathering characteristic of the coal gangue under the natural condition by taking the unweathered coal gangue as a benchmark and selecting the crushing value growth rate, the mass loss rate and the mineral composition average difference value of the coal gangue subjected to rapid simulation weathering as characterization indexes. According to the method, the time required by coal gangue weathering research is greatly shortened, a reasonable basis is provided for indoor research of the coal gangue, reasonable application of the coal gangue is favorably realized, the emission and stockpiling pressure of the coal gangue is relieved, and the method has important application value.

The invention relates to the technical field of roadbeds, and particularly discloses a fully-weathered granite sedimentary soil roadbed structure and a construction method. The fully-weathered granite sedimentary soil roadbed structure comprises a granite sedimentary layer and a reinforcing layer, and the reinforcing layer is prepared from, by weight, 60-80 parts of cement, 15-30 parts of kaolin, 1-5 parts of lignin, 5-10 parts of nano sol, 5-8 parts of polycarboxylate superplasticizer and 30-40 parts of water; the reinforcing layer mixture is formed by combining all the components and can effectively permeate into tiny cracks of a granite deposition layer, the compactness and compressive strength of a roadbed structure are improved, and cracks and structure looseness of the roadbed structure caused by granite weathering are reduced.

An image spectrum technology-based geological sketching method, including: based on collected image-spectrum data information of a tunnel face, extracting mineral end members and spectrum to determine types and contents of minerals, extracting texture features and feature waveband spectrums to determine stratum lithology, extracting crack features and identifying crack fillers to obtain a crack identification result; obtaining degrees of crushing of surrounding rocks according to numbers and relative areas of cracks; analyzing weathering variation proportions of minerals according to stratum lithology and mineral analysis result for surrounding rocks, acquiring color differences between different degrees of weathering according to spectral color difference identification results, obtaining degrees of weathering of the surrounding rocks; identifying water outflow form and water outflow position of tunnel face to be detected; and obtaining a geological sketch map for the tunnel face by performing labeling and summarization by using different labeling symbols according to the results.

The invention discloses a method and a device for accelerating weathering of selected solid waste into soil based on a compressed gas vortex expansion effect, and the method comprises the following steps: introducing high-pressure gas into an air inlet of a vortex tube, enabling the gas to rotate in the vortex tube, carrying out centrifugal compression on outer-layer airflow, carrying out expansion refrigeration on inner-layer airflow, and adjusting the airflow distribution proportion of the vortex tube; controlling the temperature of the heating gas and the cooling gas; the method comprises the steps that heating gas and cooling gas are used for alternately blowing and selecting solid waste piles, meanwhile, water circulation is used for leaching the solid waste piles, and weathering of the solid waste piles is accelerated under the action of cooling and heating alternation and water leaching. The device comprises a gas compressor, a gas storage tank, a vortex tube, a hot-end gas delivery pipe, a cold-end gas delivery pipe, a water spraying device, a selected solid waste storage tank and a gas guide valve. According to the device, the selected solid waste can be subjected to weathering treatment, cold and hot airflow generated by the eddy current effect is fully utilized, the weathering process of the selected solid waste is accelerated, and a weathered product can be used as a soil-like matrix; no extra medicine needs to be added in the operation process, and implementation is easy.

The invention discloses a drainage test device and method for a self-flowing drill hole of a bed rock confined aquifer, the drainage test device comprises a rock core pipe and a drill rod which are arranged in the drill hole, the drill hole exposes the confined aquifer, the upper end of the rock core pipe is flush with the top of the confined aquifer, and the lower end of the rock core pipe is adjacent to the drill hole in the section of the confined aquifer; the lower end of the drill rod is connected with the upper end of the rock core pipe, a water stop plug is arranged at the lower end of the drill rod, the upper end of the drill rod is connected with the lower end of the water conveying pipe, the water conveying pipe is sequentially provided with a branch pipe, a pressure gauge and a flow control valve from bottom to top, a switch valve is arranged on the branch pipe, and the upper end of the water conveying pipe is matched with the metering device; according to the scheme, the problem that water of a confined aquifer flows to a weathering zone of a relative water-resisting layer through a gap between the rock core pipe and the hole wall to cause leakage and pressure loss is effectively avoided; meanwhile, the drainage test device solves the problem that the height of a traditional additionally-installed drill rod is limited and cannot meet the maximum drop range of the pressure-bearing water level; the measurement is convenient, and the solved permeability coefficient is accurate and reliable.

This invention discloses a method for assessing the weathering of sandstone artifacts based on the fusion of multi-source heterogeneous data driven by physical-manifold collaboration, belonging to the field of cultural relic protection technology. Addressing the contradiction that surface spectral data of sandstone artifacts is dense but cannot probe the interior, while internal physical data is accurate but extremely sparse and lossy, this invention proposes a "surface-to-interior" fusion strategy. First, using a physical information deep learning model, physical partial differential equations are introduced as prior constraints to extrapolate sparse point data into a continuous deep physical tensor across the entire field, achieving a "penetrating" effect. Second, based on Riemannian manifold geometry, spectral-physical enhancement features are mapped to the tangent space to extract noise-resistant surface manifold features. Furthermore, through coupled tensor decomposition, deep mechanisms and surface properties are forcibly aligned in the latent feature space. Finally, a high-order Laplacian hypergraph model is used to achieve pixel-level classification of weathering degree. This method effectively solves the problems of spatial scale mismatch and missing physical mechanisms in multi-source data, achieving a non-destructive, full-field, and accurate quantitative assessment of the weathering status of cultural relics.

A kind of digital geological strength index intelligent acquisition method for deep pillar, first obtains the digital image of the pillar surface and carries out pretreatment;Based on image automatic identification joint fissure, extract trace length, direction, spacing and opening degree and other geometric and structural parameters;At the same time, identify the apparent weathering degree of rock mass to determine the weathering grade;And build three-dimensional model to extract surface roughness parameter. Further, the above structure, roughness, opening degree and weathering information are integrated to construct the comprehensive index JSVI of apparent joint quality of the pillar. Finally, the JSVI is coupled with the rock mass structure grade parameter SR to establish the GSI calculation model, realizing the non-contact, objective and digital expression of the pillar rock mass quality. The method is simple in implementation process and low in implementation cost. Based on digital image and intelligent identification technology, the whole process automation, objectivity and quantification of deep hard rock pillar rock mass fissure structure parameters, structure surface state index and geological strength index are realized.

The invention relates to the technical field of carbonate rock detection, and discloses an environment control device for simulating carbonate rock weathering under freeze-thaw cycle, which comprises an environment simulation cabinet, a water tank is fixedly mounted in the control cabinet, a water pump is fixedly mounted in the water tank, and the output end of the water pump is fixedly connected with a valve. The valve is connected with a spraying mechanism and an atomizing mechanism, a partition plate is fixedly connected to the interior of the environment simulation cabinet, a machine box is fixedly connected to the outer wall of the partition plate, a fan is fixedly installed in the machine box, and a refrigerating machine and a heating pipe are fixedly installed on the outer wall of the partition plate. By integrating core components such as a spraying mechanism, an atomizing mechanism, a refrigerating machine, a heating pipe and a fan, freezing and thawing circulation can be reproduced, complex natural conditions such as rain wash, high-humidity foggy days and natural wind power can be simulated, various weathering scenes of carbonate rocks in the natural environment are comprehensively covered, and an experimental platform which is more practical is provided for research of a weathering mechanism.

The application provides a device and an evaluation method for simulating blind ditch filler weathering and plugging process. An outer cylinder and an inner cylinder are used to build a filler area, and circulating water and heat can be used to accelerate the weathering of the blind ditch filler and simulate the plugging of the blind ditch by the upper abandoned slag and fine soil material. Meanwhile, water is injected from the inside to the outside, the hydraulic gradient is measured, and the permeability coefficient of the blind ditch filler at different depths is determined to evaluate the plugging condition of the blind ditch. The application can simulate the process of rainwater infiltration in the natural slag field and the horizontal drainage of the blind ditch, and can also simulate the process of rainwater carrying the slag and fine soil material into the pores of the blind ditch filler. In addition, the weathering of the blind ditch filler can be accelerated under the condition of circulating water and hot gas. The whole device realizes the simulation of filler weathering-fine particle migration-coupling plugging blind ditch.

The present invention is applicable to the technical field of bank slope protection, and in particular to a molecular simulation research method for cracking behavior of mudstone in the drawdown zone of a strongly weathered reservoir bank slope, the method comprising: determining the mineral composition of purple-red strongly weathered mudstone in the drawdown zone to obtain the determination result; establishing a microscopic model of mudstone cracks; simulating the adsorption of water molecules on the surface of montmorillonite crystal layers in the microscopic model of mudstone cracks; performing molecular dynamics simulation on the mudstone crack model of adsorbed water molecules; drawing images of the microstructure of mudstone cracks under different water concentrations and outputting them. The present invention obtains the coordinates and velocities of all atoms in the system at any time through Newton's laws of motion, and then uses statistical mechanics methods to calculate the relevant physical quantities and thermodynamic properties of the system, etc., which can clearly reveal the mechanism of generation and expansion of cracks in strongly weathered mudstone, quantitatively describe the interaction between clay minerals and feldspar and quartz in mudstone, and provide a theoretical reference for the modification of strongly weathered mudstone in the drawdown zone and the protection of the bank slope drawdown zone.

This invention discloses a device and method for simulating the space weathering of lunar rocks. The device includes a vacuum chamber, a stage, a vacuum control module, a temperature control module, a pulsed laser module, a high-energy ion beam module, a microscope module, and a control module. The vacuum chamber is hollow, forming a vacuum cavity. The stage is located inside the vacuum chamber. The vacuum control module is located on the vacuum chamber. The temperature control module, pulsed laser module, and high-energy ion beam module are all connected to the vacuum chamber. The microscope module is located inside the vacuum chamber, facing the stage. The control module is electrically connected to the vacuum control module, temperature control module, pulsed laser module, and high-energy ion beam module. By integrating and precisely controlling multiple modules, the device simulates the space weathering of lunar rocks, realizing a scenario where multiple space weathering factors act together, thus improving the realism of ground-based simulation experiments.

The utility model discloses a mine underground wall surface structure, and belongs to the field of mine underground support. The mine underground wall surface structure comprises a surrounding rock base layer, a transition layer and a guniting layer which are sequentially stacked, and the transition layer is a siloxane layer. The mine underground wall surface structure is more stable in structure, good in supporting effect, capable of effectively preventing a surrounding rock base layer from falling off and weathering for a long time, and capable of effectively guaranteeing safe operation of a mine underground.

The invention discloses a method for accelerating weathering and soil formation of waste concrete by microbial fermentation, which comprises the following steps: crushing the waste concrete into blocks with the particle size of 20-50cm, retaining the fracture structure of the blocks, mixing the concrete blocks with biomass, adding 0.3-0.5% of compound microbial agent which specifically comprises acid-producing bacteria, cellulose degrading bacteria and silicate weathering bacteria into the mixed material, and uniformly stirring to obtain a mixture; composting the mixed material, controlling the temperature of the pile body to be 40-55 DEG C, maintaining for at least 15 days, and gradually decomposing the concrete block body by utilizing the synergistic biological weathering effect of organic acid generated by microbial metabolism and the microbial corrosion effect in the fermentation process. According to the method disclosed by the invention, the dynamic bottleneck of decomposition of calcium silicate minerals in concrete blocks is broken through by virtue of synergistic fermentation of the composite flora and the biomass and the coupling effect of organic acid release and biological erosion, and the crushing energy consumption is reduced compared with that of a traditional fine crushing process; and a novel green conversion method integrating rapid soil formation, nutrient activation and pollution prevention and control is formed.

The invention discloses an unstable slope monitoring and pre-treatment system which comprises a slope body, anchor rod structures are evenly arranged on the upper side of the slope body, a flexible protective net is laid on the slope body, and the flexible protective net is connected with the upper sides of the anchor rod structures. The device has the beneficial effects that in the aspect of pre-treatment, the anchor rod structures evenly arranged on the upper side of the slope body play a key role, the conical head on the lower side of the anchor rod body can penetrate into the slope conveniently, the interior of the conical head is hollow and is provided with the fixed piece, the movable piece and other structures, and the movable piece can be driven to move by rotating the screw rod; furthermore, the anchor rod main body is tightly combined with surrounding rock and soil bodies through the transmission block and the U-shaped frame, the stability of the slope is greatly enhanced, meanwhile, the flexible protective net laid on the slope main body is connected with the upper side of the anchor rod structure, overall protection is formed, and the rock and soil on the slope surface are effectively prevented from being weathered, peeled off and collapsed.

The utility model discloses an environmental landscape gallery frame with rainwater collection, and particularly relates to the technical field of garden architecture, the environmental landscape gallery frame comprises a gallery frame, a collection mechanism is arranged at the top of the gallery frame, the collection mechanism comprises a limiting plate, the limiting plate is fixedly connected with the top of the gallery frame, and two limiting columns are fixedly arranged at the top of the limiting plate. And a first arc-shaped collecting plate is fixedly arranged at the top of the limiting column. By arranging the collecting mechanism, the rainwater collecting area can be increased on rainy days, rainwater can be collected, and the automatic cleaning function is achieved, so that the problem that the service life of the environmental landscape gallery frame is shortened after the environmental landscape gallery frame is corroded and weathered due to long-time exposure in rainy and sunny days is solved.

The application discloses a high-thick-brick city wall surface layer weathering prevention method and belongs to the field of historical building protection. The weathering prevention method controls the chemical reaction of a hydrophobic material, reduces the mass of hydrophobic substances generated by the chemical reaction in the penetration process, avoids the influence of the penetration process of weak hydrophobic substances on the penetration coefficient of the city wall surface layer bricks, prolongs the penetration time of the hydrophobic material, improves the penetration depth of the hydrophobic material in the city wall surface layer, weakens the dry shrinkage reciprocating change, realizes the deformation and stress coordination of the waterproof layer of the city wall surface layer and the internal wall body, avoids the stress concentration phenomenon of the waterproof layer shell, further achieves the purpose of preventing the weathering effect of external rain and snow immersion into the city wall surface layer and limiting the salt accumulation caused by the evaporation of the water in the city wall, realizes the purpose of deeper penetration of the hydrophobic material into the city wall, and solves the weathering diseases of the high-thick-brick city wall.

The invention relates to the field of anti-aging additives, in particular to an anti-aging compound additive for a polyethylene weather-proof film and a preparation method of the anti-aging compound additive, which are used for solving the problems that the anti-aging performance of the existing polyethylene weather-proof film is improved by adding the anti-aging additive in the production process, but the anti-aging effect of the existing anti-aging additive is limited, so that the anti-aging performance of the polyethylene weather-proof film is poor. The long-term use requirement of the polyethylene weather-proof film in a complex environment is difficult to meet. The talcum powder, the difunctional weather-resistant agent, the weather-resistant reinforcing agent, the strength reinforcing agent, the nucleating agent, the lubricating agent and the dispersing agent are reasonably compounded, all the components have a good synergistic effect and can give full play to respective advantages, the aging degradation reaction of polyethylene under the action of light, heat and oxygen can be effectively inhibited, and the service life of polyethylene is prolonged. The tensile strength of the polyethylene weather-resistant film is improved, the light aging resistance and the thermal oxidation aging resistance of the polyethylene weather-resistant film are remarkably improved, and the high performance can be kept for a long time.

This invention discloses a generalized identification method and system for slope rock mass structural surfaces based on multi-level domain adaptation. This invention relates to the field of slope rock mass identification technology. By constructing four levels—global domain adaptation, regional domain adaptation, local domain adaptation, and sample-level adaptive adaptation—this invention achieves hierarchical and progressive evolution of model capabilities. A variational autoencoder is used to explicitly decouple features into domain-invariant and domain-specific parts, enabling the model to distinguish between the essential geometric features of rock mass structural surfaces and the weathering and unloading features of specific regions. Through regional meta-learning training, it can quickly adapt to new regions with only a small number of labeled samples.

The invention discloses a large-mine-pressure extremely-easily-weathered broken roadway surrounding rock sealing method which comprises the following steps that S1, anchor rods and anchor cables are installed in a roadway, and an anchor net is laid; s2, preparing and spraying roadway surrounding rock; and S3, a polyurethane material for coal mine air blocking is sprayed to replace sprayed concrete to seal roadway surrounding rock, and the spraying thickness is not smaller than 50 mm. The surrounding rock can be closed in time after the coal mine tunnel is constructed, the surrounding rock of the tunnel is prevented from being weathered and broken, and reliability and effectiveness of overall supporting of the tunnel are guaranteed; the spraying layer can generate plastic deformation along with the deformation of the surrounding rock of the roadway under the action of large mine pressure, and does not crack and fall off; compared with the operation of spraying concrete to seal the surrounding rock of the roadway, the device can reduce the potential safety hazard of the top slope caused by cracking and falling of the roadway spraying layer, can greatly reduce the labor intensity, does not generate dust and toxic and harmful gas, purifies the operation environment, and can greatly reduce the occurrence probability of coal mine occupational diseases.