90 results about "Karst landform" patented technology

The invention discloses a refined restoration method for an ancient karst landform. According to the method, spectra inversion is carried out by using original seismic data and logging data of a target stratum, thereby obtaining a seismic reflection coefficient data volume; positions, at the reflection coefficient data volume, of a top boundary and a bottom boundary of the target stratum at the logging position can be calibrated according to the logging data, tracking is carried out automatically by using the calibrated top boundary and bottom boundary as seed points, thereby obtaining the positions of the top boundary and bottom boundary of the whole target stratum at the reflection coefficient data volume; subtraction of the top boundary and the bottom boundary of the whole target stratum is carried out to obtain a residual thickness of the target stratum; and then the ancient karst landform of the target stratum is restored by using the residual thickness method. With the method, the restoration precision of the ancient karst landform can be improved and the exploration economic benefits of the karst reservoir can be improved effectively.

The invention discloses nutritional soil for plant cultivation of a karst landform. The nutritional soil is used for solving the problem that the existing soil of karst-landform regions is not conducive to plant growth. The nutritional soil disclosed by the invention comprises foreign soil, an organic fertilizer, acidic soil microflora, organism decomposition microflora, nitrogen fixation microflora, a pH buffering agent, bacterial cellulose, a curing agent and a soil water retention agent. The nutritional soil for the vegetation cultivation of the karst landform, disclosed by the invention, has the advantages that good growth soil can be provided for the vegetation of the karst landform, the problem of stony desertification of the karst-landform regions can be effectively solved, and virtuous cycle for ecosystems of the karst-landform regions is promoted.

The invention discloses a method for culturing vegetation in a Karst landform region. The method comprises the steps of borrowed soil backfilling, retaining wall building, land preparation, base fertilizer application, seedling selection, planting and management, and can be used for effectively improving the survival rate of vegetation planted in the Karst landform region; the planted lands of different shapes can be prepared according to the specific conditions of the Karst landform, so that the practicability of the method is improved; through arranging retaining walls, soil is prevented from running off, a good growing environment is provided for the growth of vegetation, and the ecological environment of the Karst landform region is improved.

The present invention discloses a method for estimating the amount of soil loss in a Karst area. The method comprises the following steps: when a Karst area accounts for 0% of a total area, using a revised universal soil loss equation to estimate the amount of regional soil loss; establishing a soil loss equation of Karst area; establishing a ground surface soil loss contribution ratio formula of Karst area; according to the revised universal soil loss equation, the soil loss equation of Karst area and the surface soil loss contribution ratio formula of Karst area, obtaining a model equation for estimating the amount of soil loss in Karst area or in Karst drainage basin; and establishing a calculation formula of the amount of soil loss in a hybrid region of a normal landform and pure Karst landform. The method solves the technical problems such as that the amount of soil loss in Karst area cannot be accurately estimated because a soil erosion process in Karst area is affected by many factors of Karst area comprising the landform, lithology, soil layer thickness, soil formation rate, and rock exposure rate.

The invention discloses a culture method for original ecology pollution-free chicken capable of laying green-eggshell eggs. The culture method is optimized in the aspects of chicken house construction, incubation, nutrition and feeding, prevention and treatment of diseases and the like. The emphasis of the method lies in that 20-week old chicken are put in a karst landform garden of a stone forest to be stocked, and meanwhile, manually prepared chicken feed is avoided. Maize and wheat purchased from local farmers are directly used for feeding the chicken, and fly maggots which accounts for 5-10% by mass of food intake are added into the chicken feed. According to the green-eggshell eggs obtained by virtue of the culture method, the main nutrients of the eggs: selenium, zinc and iodine are 3-6 times higher than those of common eggs, the content of cholesterol is 20% lower, and the content of proteins is 12.7% higher. The eggs belong to eggs which are high in zinc, ferrum, calcium and protein and low in cholesterol, are special eggs capable of developing intelligence and improving intelligence quotient, and are suitable for people, especially pregnant women, infants, adolescent and quinquagenarian to eat.

The invention relates to a mechanical hole forming technology applied to karst landform. The technology comprises the following steps of: laying off and positioning; digging a mud pit; burying a pile casing; arranging a drill in place and making mud; forming holes by using an impact machine, wherein when a karst cave is greater than or equal to 3m in depth during construction, a steel pile casing dado is arranged; pumping out sediment and supplementing mud; checking the sediment; clearing off the holes by using a home-made hole cleaning device; checking the holes; arranging a steel reinforcement cage; arranging guide pipes; and pouring underwater concrete. By the mechanical hole forming technology, the probability of occurrence of hole collapse, overfilling of concrete and the like can be lowered, karst cave areas can be effectively protected, the effect of saving concrete is achieved and the cost is further reduced; moreover, by the mechanical hole forming technology, a unit in charge of construction can be effectively helped to clear off sediment from the bottoms of holes, hole piles in collapsed holes can be cleared quickly, the specific depth of a hole pipe can be measured by construction workers.

The invention discloses a method for planting dendrobium through natural stone seams on rock in karst landform areas. The karst areas such as Guizhou, Yunnan, Guangxi are one of origin places of medicinal dendrobium such as dendrobium officinale, ecological planting is developed through the natural ecology conditions of the origin places, and the geo-authentic characters and the quality of a medicine material can be guaranteed. According to the method, the dendrobium is planted in the natural stone seams of the karst rock through the field natural environment condition in the karst landform areas, stone and stone seams which are suitable for planting the dendrobium are cleared, and the planting fixing method is determined. The survival rate of the dendrobium planted with the method is 90% or above. The method is suitable for ecological planting of the medicinal dendrobium such as the dendrobium officinale, D. nobile and D. devonianum.

The invention discloses a preparation method of karst foam nickel for electrocatalytic full decomposition of water for hydrogen production and oxygen production. The preparation method is characterized in that a foam nickel serves as a substrate, H2SO4 is used as an etching agent, and the foamed nickel is subjected to in-situ etching by adopting an electrochemical etching method to form the foamednickel with the typical karst landform. The prepared karst foamed nickel has the advantages of being large in specific surface area, high in conductivity, low in cost and the like which are achievedin the original foam nickel, and further has the advantages that the specific surface area is larger, moreover, the surface is Ni and alpha-Ni (OH)2 the heterojunction active component so that both hydrogen production and oxygen production can be achieved, the two functions can be flexibly switched, high reaction activity and stability are achieved, and a potential application prospect in the field of electrocatalytic decomposition of the water is achieved. According to the preparation method, the raw materials are cheap and easily available, and the preparation method is simple and economical, and is suitable for industrial large-scale production.

The invention relates to a natural Bama mineral white mud facial mask and a preparation method thereof, and belongs to the field of beauty skin care products. The natural Bama mineral white mud facial mask is prepared by taking an ore (mainly contains algae dolomite) that comes from karst landform in Changshou country, Bama, Guangxi province as a main raw material, and auxiliary materials, which are used for cosmetic production, as the balance. The preparation method is relatively simple and convenient, and no environmental pollution is caused. The mud particles of the natural Bama mineral white mud facial mask are fine; the natural Bama mineral white mud facial mask contains no large particles, is soft for smearing, and possesses no toxic or side effects; and no friction on skin is caused. The natural Bama mineral white mud facial mask is capable of increasing elasticity of skin, delaying skin senescence, adjusting human body metabolism, activating blood circulation and dissipating stasis, avoiding wrinkle, realizing skin whitening, diminishing inflammation, sterilizing, and protecting skin from ultraviolet light; and is suitable for people of all ages and people with various skin types, and is especially suitable for people with sensitive skin.

The invention discloses an ecological breeding method of giant salamanders. The ecological breeding method comprises step 1, pond building which comprises building a plurality of breeding ponds in a natural cave; step 2, seedling throw which comprises selecting healthy disease-free seedlings which are bred artificially and throwing the seedlings into the small ponds or the large ponds according to the size and the strength of the seedlings, wherein 15 to 20 seedlings are thrown into every pond; step 3, bait feeding which comprises directly throwing fresh baits into the pond water according to the 10 to 15% of the total weight of the giant salamanders and performing the attachment breeding of small trash fishes, loaches, cold water shrimps and crabs ; step 4, daily management which comprises controlling the water level, maintaining the water temperature to be 16 to 20 DEG C and a ph (potential of hydrogen) value of the pond water to be 7.0 to 7.5, performing regular disinfection on a water body through bleach or chlorine dioxide and mixing the allicin, gallnut or rhubarb powder into the baits to perform once feeding every 15 days. According to the ecological breeding method of the giant salamanders, the constant breeding temperature of the natural cave and the weak base water quality formed by the Karst landform cave are beneficial to the growth and reproduction of the giant salamanders and accordingly the life of the giant salamanders is long, the nature of the giant salamanders does not degrade, the incidence of diseases is reduced, and the growth and reproduction rate and the survival rate are improved.

The invention discloses a farming method for Changhu ecological native chickens capable of laying worm eggs. The farming method includes the steps of: feeding the native chickens capable of laying the worm eggs with fodder, wherein the fodder includes Ludan number 8 corns purchased from local farmers, rice bran, wheat bran, high quality forage, fly larvae accounting for 10-15 % by mass of food intake; and putting the chickens in a karst landform agricultural manor in Shilin County, Changhu Town after the chickens are 20 weeks old, and naturally breeding the chickens outdoor in fences. Through soil, climate, a special natural environment and the specially formulated fodder, native chicken worm eggs are finally acquired, the worm eggs are less in egg white, are big in egg yolk, and have natural colors of yellow mud and red mud, the worm eggs are rich in living substances which are beneficial to human health, and the living substances includes insect active proteins, microelements including iodine, selenium, iron and zinc, a plurality of vitamins, and a plurality of amino acids; and the worm eggs are high in lecithin content, are low in cholesterol content, are green, safe, pollution-free, and toxic and side effect-free, and are especially suitable for pregnant women, infants, adolescents, and middle-and-old aged people.

The invention relates to a method for carrying out tower site foundation pit construction on a karst landform foundation in a rainy season. The method is characterized by comprising the steps of excavating a foundation pit by adopting water mill drilling or ladder-shaped alternative type blasting, pre-embedding a PVC (Poly Vinyl Chloride) water guiding pipe during foundation pit protective wall construction, and coating a pipe opening by adopting dry rice straws and a fine sand net; dividing a water ponding situation into three grades of a serious water ponding grade, a medium water ponding grade and a common water ponding grade, and excavating a karst landform foundation pit which is in the serious water ponding grade by adopting an Shallow sump drainage method; for a karst landform foundation pit which is in the mediumwater ponding grade, carrying out concrete pouring by adopting a funnel lifting and underwater concrete pouring method; for a karst landform foundation pit which is in the common water ponding grade, carrying out the concrete pouring by adopting a crane ladle water pumping concrete pouring method. According to the method disclosed by the invention, the efficiency of the tower site foundation pit construction can be effectively increased, the construction safety is increased, and the falling and the collapsing during a foundation pit construction process can be avoided.

The invention discloses a construction method for basement floor seepage under Karst landform conditions. The construction method is implemented by a prefabricated steel pipe. An annular plate is welded in the middle of the prefabricated steel pipe, through holes are uniformly formed in the annular plate, expansion bolts are arranged in the through holes, water seepage holes are uniformly formed in the pipe wall of the lower portion of the prefabricated steel pipe, a filter screen sleeve sleeves the lower portion of the prefabricated steel pipe, and a backwash device is inserted in the prefabricated steel pipe. Severe seepage regions can be perforated by the aid of the construction method according to structure floor water seepage distribution conditions, underground water pressure reliefand drainage can be carried out by rear pressure relief and drainage pipes, backwash and cleaning can be periodically carried out, the smoothness of drainage pipes can be guaranteed, a floor can keepdry, and accordingly the construction method has the advantages of simple structure, low manufacturing cost, obvious drainage effects and the like. Besides, the construction method can be widely applied to engineering for floor cracking seepage due to confined water and is extensive in popularization.

The invention discloses a method for reinforcement treatment of a karst landform super high-rise building foundation. The method comprises the steps of grouting reinforcement hole drilling, mud jacking water pipe laying, high pressure clear water cutting cleaning, high-pressure grouting slurry preparation, high pressure jet grouting construction, mud jacking cement paste preparation, primary injection mud jacking construction, mud jacking, secondary injection mud jacking construction and pile foundation core-pulling detection and the like. Grouting filling gap treatment is performed on a karst cave under a file foundation, a cavity of the karst cave is filled densely, filling and the environment are solidified to be a whole, and enough strength is available to bear a super high-rise building; the connection between the karst cave and underground water can be cut off, the karst cave not longer develops, the stability of a horizontal bearing stratum under the pile end is improved, the stability and strength of the bearing stratum meet the design requirements, and foundation stability and building safety are guaranteed.

The invention provides a karst landform based hydropower station diversion tunnel plugging construction method. The karst landform based hydropower station diversion tunnel plugging construction method comprises the following steps of: S1, designing a diversion tunnel plugging scheme, making a principle that takes in-tunnel plugging as the principal thing and takes outside-tunnel seepage-proofingas the auxiliary thing, and adopting a plugging scheme of a temporary plug and a perpetual plug; S2, performing diversion tunnel temporary plug construction; S21: constructing a construction channel and a scaffold working platform; S22: mounting a water baffle steel plate gate; S23: mounting a stop log plate; S24: manufacturing and mounting a water drainage steel tube; S25: pouring concrete of thefirst section of the temporary plug; S26: performing grouting leakage stopping and reinforcing treatment on the first section of the temporary plug; S27: closing a butterfly valve; S28: pouring concrete of a second section of the temporary plug; and S3: constructing the perpetual plug. The hydropower station diversion tunnel plugging construction method can be adopted to effectively guarantee plugging of the diversion tunnel, so that safety of a dam is guaranteed.

The invention relates to an excavation method of a bedding slope crack toe plate protection layer of karst landform. The excavation method is characterized by adopting simultaneous blasting of toe plate foundation surface bench blasting and upstream slope double-energy-gathering pre-splitting smooth surface blasting and combining a flexible cushion layer and a bench millisecond differential blasting method with a reserved protection layer; and the excavation method specifically comprises the following steps that technical disclosure is conducted; survey and setting out are conducted; blast hole positions are determined; a drill rig is in place; the drill rig starts drilling, and a hole drilling record is filled; when a blast hole is drilled to be about 40 cm, recheck is conducted, and thehole drilling angle is adjusted; the blast hole depth is controlled, and the 30-50 cm of protecting layer is reserved; as for the special geological conditions, related records are well made, and whether blasting design is adjusted or not is considered; blasting construction is conducted; according to the blasting design, the blast hole is filled with the flexible cushion layer, explosive is charged, the hole is plugged, explosive in the hole is networked, and blasting is conducted; and the protection layer is excavated. According to the excavation method of the bedding slope crack toe plate protection layer of the karst landform, the cost is saved, the mechanical utilization rate is increased, the construction progress is accelerated, and the favorable conditions are created for subsequent construction.

The invention provides a polluted karst water restoration apparatus, which comprises a flotation apparatus, a solar energy battery, an air pump, an air conduit, a microflora pipe, a bearing rope and a thousand pounder; the air pump and the solar energy battery are directly fixed on the flotation apparatus, an end part of the air conduit passes through a through hole at the central part of the flotation apparatus and is connected to an outlet of the air pump, another end part of the air conduit is connected to the microflora pipe, the thousand pounder is connected to the bottom of the flotation apparatus through the bearing rope, the solar energy battery is electrically connected to the air pump, and the polluted karst water restoration apparatus is used for the organically polluted karst water body. The polluted karst water restoration apparatus has the advantages of simple design, convenient disassembly, transport and enforcement; and is suitable for karst landforms with insufficiency of energy, complex geographical environment, and changeable water body depth; and has good effect for processing the organic pollutant organic pollutant and removing nitrogen for the water body.

The invention relates to a special landform distribution range identification method, device and equipment, and the method comprises the following steps: a, obtaining an optical remote sensing image and elevation data of a region with a special landform, and carrying out the preprocessing; b, generating gradient data based on the elevation data, and fusing the optical remote sensing image, the elevation data and the gradient data to obtain a training sample; c, labeling the training sample to obtain a label file, and training the recognition model by using the training sample and the label file; d, acquiring an optical remote sensing image and elevation data of a to-be-identified area, and performing fusion cutting to obtain to-be-identified data; and e, identifying the to-be-identified data by using the identification model to obtain the special landform distribution range of the to-be-identified area. According to the method, automatic identification and accurate extraction of the spatial distribution range of special landscapes such as the conical karst landform can be realized.

The invention belongs to the technical field of plant tissue culture and particularly relates to a tissue culture rapid propagation method for moonlight jujubes. The method includes the steps of establishment of an explant, culture starting, subculture, rooting culture, hardening, transplanting and the like. The moonlight jujubes are studied, most suitable culture components are adopted at different stages, the propagation coefficient is high, the rooting rate is high, the method is easy and convenient to operate and low in cost, and a large number of moonlight jujube tissue culture seedlings can be acquired effectively and conveniently within a short time; the obtained tissue culture seedlings are high in survival rate, and the seedlings can keep good genetic characters of superior trees; a large number of orderly regenerated plants with stable genetic characters can be acquired through the tissue culture rapid propagation method for the moonlight jujubes, the test result is stable, repeatability is good, the method can be applied to large-scale commercial seedling growing, the industrial development of the moonlight jujubes is promoted, and the method is suitable for large-area regional planting in north mountainous areas of Guangxi, particularly planting in karst landform mountainous areas.

The invention belongs to the technical field of cavity treatment, and discloses a karst landform cavity treatment method. The karst landform cavity treatment method comprises the steps of tunnel bottom grouting reinforcement, tunnel body primary support reinforcement, pile foundation construction, joist construction and tunnel body lining, wherein in the pile foundation construction step, construction preparation, pile casing burying and following, drilling machine installation, slurry preparation, percussion drilling hole forming construction, final hole detection, hole cleaning, reinforcement cage manufacturing and installation, underwater concrete pouring and quality inspection and testing are conducted; in the joist construction step, foundation pit excavation, foundation treatment, reinforcement and formwork construction and concrete pouring are conducted; and in the tunnel body lining step, waterproof and drainage construction, lining reinforcement construction and concrete construction are conducted. According to the karst landform cavity treatment method, targeted grouting reinforcement is conducted according to the tunnel bottom soil type, a tunnel bottom silty clay section is subjected to phi 76 steel flower tube steel tube group pile grouting reinforcement treatment, tunnel bottom karst filler is solidified, and thus the tunnel bottom safety is higher; a secondary lining mode is adopted in the tunnel body lining process, and thus firmness is higher; and a tunnel is further subjected to waterproof and drainage treatment, and thus water leakage of the tunnel can beeffectively prevented.

The invention relates to a novel process for treating bauxite washing and screening tailing mud through a dry process and comprehensively utilizing the bauxite washing and screening tailing mud. The novel process is characterized in that coal ash or lime is added to perform modified pressure filtration dehydration after the bauxite washing and screening tailing mud is concentrated, so that a dry filter cake is formed to feed to a mine mined-out region to fill and perform land reclamation. Mass fraction of the added lime is smaller than or equal to 3%, and mass fraction of the added coal ash is smaller than and equal to 10%. The advanced process technology is adopted, so that a tailing mud base adopting a wet-process discharge mode can be cancelled, project investment and production operation cost are greatly saved, and safety and environment-friendly risk of production operation are reduced to be zero; meanwhile, beneficial conditions are provided for filling and land reclamation of the mine mined-out region in a karst landform region, treatment cost of waste slag coal ash is further saved, and environmental pollution is avoided; and compared with 1-millon concentrate coal washery, the novel process has the advantages that annular economic benefits are 20 millions of Yuan or more; and the novel process has extremely high economic benefits and an extremely high social value.

The invention discloses a karst landform tunnel energy-gathered water pressure smooth blasting structure and method. The karst landform tunnel energy-gathered water pressure smooth blasting structure comprises cut holes, auxiliary holes, peripheral holes and bottom plate holes; the cut holes are symmetrically formed in the two sides of the center line of a tunnel; the auxiliary holes are formed in the sides, away from the center line of the tunnel, of the cut holes; the peripheral holes are formed in the sides, away from the center line of the tunnel, of the auxiliary holes; and the bottom plate holes are formed in the bottom of the section of the tunnel. According to the karst landform tunnel energy-gathered water pressure smooth blasting structure and method, the number and depth of smooth blasting shot holes are remarkably reduced, so that the construction progress is accelerated, and the shot hole utilization rate is increased; back break is directly and effectively controlled, the labor force of workers is reduced fundamentally, the economic benefits are remarkably increased, and subsequent construction is reliably guaranteed; and meanwhile, energy-gathered water pressure smooth blasting is beneficial to remarkably reducing surrounding rock disturbance, and the stability and construction safety of surrounding rock are guaranteed.

The invention provides a high-resolution hydrological monitoring method for a small-drainage-basin karst water system. Hydrological monitoring of a rainfall, surface water, an underground water flow,and a water level high resolution of a karst water system of a tunnel zone is carried out and the monitoring data are transmitted to a terminal processor in real time for convenient extraction and utilization; dynamic flow characteristics and changing rules of different karst aquifers, different karst landforms and karst water systems in the tunnel zone are studied and surveyed, an infiltration coefficient and a flow lag changing law of each sub-basin are monitored accurately to provide important hydrogeological data for prediction of tunnel water inflows, so that a critical role in segmentedprediction of tunnel water inflows is realized. Therefore, the monitoring work efficiency and automation level are improved; a lot of manpower and material costs are saved; the monitoring method has the low engineering load and the low cost; and the influence on the local environment is minimized. The high-resolution hydrological monitoring method is suitable for tunnel water inrush prediction inkarst areas, especially in segmentation prediction.

The invention discloses an artificial ecological lake construction method for the karst landform. The artificial ecological lake construction method for the karst landform sequentially comprises the following steps that S1, the area where an artificial lake is built is cleaned, and soil on the lake bottom is leveled; S2, the ecological environment of the soil on the lake bottom is improved; S3, water is injected into the area where the artificial lake is built; and S4, biocenoses are established in the lake. The phenomena of blue algal bloom, water stench and the like are completely eradicated, and ecological landscapes of clear water, clean air, beautiful sceneries and swimming fishes are created. Except for rainstorms, the water transparency reaches 1.5 m or above, and the ' oligotrophicgrass type clear water status' water is built comprehensively. The aquatic plant coverage rate is equal to or greater than 80%, the water bottom always keeps green at all seasons, the water surface is embellished with flowers, and the water landscapes are improved remarkably. An aquatic ecosystem food chain is perfected, an aquatic ecosystem with an integrated structure and perfect functions is built, and the water achieves self-purification and has certain anti-pollution capacity.

The invention provides a composite foundation with karst landform and a construction method thereof. The method comprises the following steps: (1) placing positioning plates in the bottom of a foundation pit with the karst landform; (2) drilling and digging down to form anchor holes in the positioning plates; (3) fixing anchor rods in the anchor holes; and (4) placing reinforcement cages in the foundation pit and pouring concrete. According to the technical scheme, through the change of the structural style of the upper foundation, the composite foundation with short piles and rock anchor rodsand the construction method, the composite foundation can be used in special geological conditions with thick covering layers and high-relief underlying bedrock surfaces, is free of influence of underground water level and hole wall stability, and is capable of effectively solving the technical problems in model selection, design and construction of power transmission line pole tower foundationsin mountainous areas in the west of Guangdong.

The invention relates to an ecological-reduction environment-friendly water recovery system and belongs to fields of energy saving technique and equipment, efficient energy-saving products, energy-saving service industry, advanced environmental protection technique and equipment, environment-friendly products and environment-friendly service, solving problems about water source supply, river pollution, earth surface ecological pollution and also solving the major issue in water and soil conservation. With the ecological-reduction environment-friendly water recovery system, heat island effect due to artificial Karst landform generated during urbanization is relieved effectively, loss of water sources is prevented effectively, pollution control is enabled to be accurate and creative to pollution sources to bring macroscopic positive energy, and thus research on management strategy for controlling loss of water sources, urban waterlogging, dried-up farmland, drought, environmental degradation of inland rivers and earth surface of our country is provided.

The invention provides a diversion tunnel blockage structure and method based on a karst landform. A first section of temporary plug, a second section of temporary plug and a permanent plug are arranged in a concrete lining of an original diversion tunnel in a water flowing direction in sequence; a water stop steel gate is mounted at the upstream of the first section of temporary plug; a stop loggate is mounted behind the water stop steel gate, and is positioned through cooperation of multiple stand columns; a bottom layer of drainage steel pipe and a top layer of drainage steel pipe are arranged at the bottom of the concrete lining of the original diversion tunnel; the two layers of drainage steel pipes are stacked; a first butterfly valve is mounted in a water outlet of the top layer ofdrainage steel pipe; and a second butterfly valve and a third butterfly valve are mounted in a water outlet of the bottom layer of drainage steel pipe at intervals. Through use of a hydropower station diversion tunnel blockage structure, blockage of the diversion tunnel can be effectively guaranteed, and the dam safety is guaranteed.

The invention provides a karst slope vertical valley parameter measuring method, and belongs to the technical field of unmanned aerial vehicle surveying and mapping. The method comprises the followingsteps: interpreting a karst slope vertical valley landform based on satellite remote sensing data; determining a data acquisition area according to a terrain, the landform and a resolution, delimiting a imitation ground flight range and planning a route; adopting two modes of intelligent route planning flight shooting and manual control flight shooting to comprehensively acquire data; carrying out aerial image processing; and measuring and analyzing parameters of a slope vertical valley. According to the method, the landform of the slope vertical valley and the surrounding karst landform thereof can be obtained, a problem that manual measurement cannot be performed or measurement is inaccurate is solved, full-coverage, high-precision and multi-view karst slope vertical valley landform data is obtained, measurement parameters are comprehensive and high in accuracy, and permanent measurement data is provided for depiction, protection, development and utilization of the karst slope vertical valley landform.

The invention discloses a production method of a livestock railing made from trachycarpus fortunei leaf stems. The production method is performed according to the following ten steps of selecting and pretreating the leaf stems; processing filament bundle shaped raw materials; drying filament bundles, and loading the dried filament bundles in a basket; performing gum dipping and gum draining; calculating filament bundle pouring quantity according to a compression ratio, and weighing the poured filament bundles; putting the weighed filament bundles into a mold for cold pressing; covering a mold cover, increasing pressure and withdrawing pressure; performing hot curing and mold unloading; sawing square stocks, and cutting the sawn square stocks into segments; and making the livestock railing. The livestock railing is made from trachycarpus fortunei leaf stem timbers, so that the economic benefits of trachycarpus fortunei trees are increased, the development of the trachycarpus fortunei planting industry is promoted, reformation of the rocky desertification environment of karst landforms is facilitated, the dosage of good trees for making the livestock railing is reduced, the production cost is reduced, the development of the livestock husbandry is promoted, and multiple effects can be realized by the production method.

A distributed runoff producing device for generally simulating the karst landform is a hydraulic engineering simulation test device and comprises a bottom layer relief model and runoff producing units arranged on the bottom layer relief model, wherein the runoff producing units are spliced horizontally, and the bottoms of every two adjacent runoff producing units are communicated with each other through a U-shaped hose. Each runoff producing unit comprises a runoff producing barrel and percolation cloth built in the runoff producing barrel, wherein a convergence way is arranged on the top of the runoff producing barrel and connected to a surface runoff convergence groove, a convergence pipe is arranged at the bottom of the runoff producing barrel and connected to an underground runoff convergence groove, and the downstream portion of the surface runoff convergence groove and the downstream portion of the underground runoff convergence groove are connected with a measuring weir. The bottom layer relief model is manufactured according to the research area through equal proportion shrinkage, part of rainwater penetrates into the runoff producing barrels through the percolation cloth, rainwater in the runoff producing barrels enters the underground runoff convergence groove through the convergence pipes, rainwater left on the percolation cloth enters the surface runoff convergence groove through the convergence ways, the water-carrying capacity is measured through the measuring weir, and the test result is obtained through analysis and calculation.