63 results about "Erosion control" patented technology

The invention discloses a composite conditioner for acid soil of slope cropland and application of the composite conditioner. The conditioner comprises the following components in percentage by mass: 12%-18% of calcium peroxide, 18%-32% of a buffer mineral compound, 1.5%-3.0% of an anti-scouring controlled-release material, 10%-25% of a nutrient carrier and fertilizer, 0.5%-3.0% of a binder and a granulation aid, and the balance of inert filler and water. The preparation process comprises the steps of dry mixing, granulation, drying and coating. The product provided by the invention can realize high residue of CaO and stable pH under the condition of heavy rainfall of slope cropland, effectively inhibit the pH fall of acid soil, reduce aluminum toxicity and reduce nutrient loss. By controlling the content and proportion of the calcium peroxide, the buffer mineral compound and the anti-scouring controlled-release material, the calcium peroxide, the buffer mineral compound and the anti-scouring controlled-release material have a synergistic effect in a slope cropland environment, so that not only is the initial rapid acid inhibition capability ensured, but also the lasting pH stability and high residual rate are realized through buffer and controlled-release technologies.

The invention discloses a soil wind erosion treatment device which comprises a wavy grid structure, and the wavy grid structure is of a wavy three-dimensional structure formed by plastic sheets and is composed of a plurality of wave crest parts, a plurality of wave trough parts and grid units evenly distributed between the wave crest parts and the wave trough parts. A biomass rope is wound on the outer side of the trough part; the whole wavy grid structure is made of a plastic material with heat conductivity and an electrostatic adsorption function; the wave-shaped grid structure is fixed to the ground through anchoring inhaul cables. The whole soil wind erosion treatment device can be laid in a modularized mode, the wave crest arrangement direction and the anchoring point density are optimized according to the wind erosion terrain and the wind direction, and the soil wind erosion treatment device is suitable for wind erosion sensitive areas in arid and semi-arid areas. In practical application, the device can effectively relieve direct scouring of strong wind to surface sand grains, meanwhile, condensation, water catchment and sand stabilization are induced through the structure of the device, the ecological vegetation restoration process is gradually introduced, and the device has the ecological property and engineering property.

A technique facilitates long-term operation of a submersible pump which may be used in an electric submersible pumping system. According to an embodiment, the submersible pump comprises at least one stage, e.g. a plurality of stages. Each stage uses an impeller which may be rotated within a diffuser to establish a fluid flow through the pump. Additionally, each stage comprises an erosion control system positioned between the impeller and the diffuser to reduce erosion and / or the effects of erosion so as to extend the life of the submersible pump.

The present invention relates to an erosion control apparatus and methods of using and installing the apparatus. The apparatus is constructed to prevent erosion of soil during typical weather or tidal conditions and adverse weather events. The apparatus can include an anchored marsh installation operative to stabilize a tidal marsh and shoreline.

A system including a closed loop or partially closed loop structure, including tied blocks, positioned at or adjacent to a toe of a slope.

A technique for reducing erosion on the interior of a production component of a well system involves coating the interior of the production component with a series of ribs and grooves. The coating can be a non-metallic material in which the ribs and grooves are formed. The coating can also be applied as a series of ribs that are attached to the interior surface of the production component. The series of ribs can be made of alternating materials that have a different hardness causing the ribs to wear at different rates.

A technique for reducing erosion on the interior of a production component of a well system involves coating the interior of the production component with a series of ribs and grooves. The coating can be a non-metallic material in which the ribs and grooves are formed. The coating can also be applied as a series of ribs that are attached to the interior surface of the production component. The series of ribs can be made of alternating materials that have a different hardness causing the ribs to wear at different rates.

This invention discloses a mountain topsoil spraying and erosion control system, including a drainage device, a spray anchor support device, and a water collection and diversion device. The drainage device includes a top water interception section and a bottom drainage section. The spray anchor support device includes an anchoring component and a grass planting stick. The anchoring component has a first fixed position and a second fixed position distributed sequentially in the vertical direction. The grass planting stick is located at the second fixed position, and the upper side of the grass planting stick is used to form a sprayed substrate layer. The water collection and diversion device is located at the first fixed position of the anchoring component. The water collection and diversion device has a first port corresponding to the top water interception section and a second port corresponding to the bottom drainage section, used to collect water flowing out from the top water interception section and water on the mountain slope, and guide the water to the bottom drainage section for discharge. In this way, the soil on the mountain slope is stabilized, the erosion of the sprayed substrate that has not formed a protective effect on the mountain vegetation by rainfall is reduced, and the efficiency and effect of mountain vegetation restoration are improved.

The invention relates to a method for repairing a part (100) made of an organic matrix composite material at least partially covered with an erosion control film (30), the method comprising the following steps: - removing the erosion control film from a damaged area (50) of the part, - removing an initial adhesive (32) that initially fixed the film to the damaged area to form a hollow portion (55), - applying a repair adhesive (38) to the hollow portion (55) or to one face of a patch of a replacement erosion control film (30') shaped to replace the film in the damaged area, - applying the patch of the replacement film (30') to the damaged area, - polymerizing the repair adhesive (38) at a polymerization temperature below 100°C, forming a repaired area (60) in place of the damaged area (50). Figure 8 (for the abstract)

The application relates to the technical field of ecological protection, and discloses a vegetation community configuration management system for ecological restoration of a dry valley, which comprises a multidimensional acquisition module, a community analysis module, an ecological evaluation module, a treatment analysis module and a configuration management module. The system fuses data through the multidimensional acquisition module, the community analysis module quantifies the growth tendency of the vegetation community in terms of functional composition, vertical structure and stand type through growth indicators, the ecological evaluation module comprehensively reflects the supporting capacity of topography and soil factors on the vegetation habitat through site index, the multidimensional evaluation has high precision, the treatment analysis module evaluates the comprehensive effect of a treatment scheme in terms of water source regulation, soil improvement, vegetation restoration and erosion control through efficiency index, the configuration management module judges the intervention level of the ecological environment in the dry valley region, the improvement level of site conditions, and the adaptation level of the treatment scheme, outputs corresponding judgment results and response measures, and has good intelligent management and protection effect.

The present invention relates to the field of wind erosion control technology, and specifically to a method for artificial directional filling and maintenance control applicable to wind-eroded sand beaches, comprising: generating a wind erosion risk distribution heat map based on beach elevation point cloud data and historical wind erosion vector maps, marking strong wind erosion areas as targeted maintenance areas; using a particle size layer filling device to sequentially construct a coarse sand layer, a medium sand layer, and a fine sand layer based on the results of in-situ sand particle size analysis; shaping a continuous wavy wind-guiding ridge on the surface of the filling area, controlling its direction with the direction of the main harmful wind and meeting the ridge height-width ratio and slope requirements; evenly distributing diamond-shaped vegetation troughs on the leeward side of the ridge, filling it with a sand-humus-water-retaining agent mixed matrix, planting salt-alkali-tolerant shrubs, and laying a high-density mycorrhizal fiber mat activated by seaweed extract, ultimately constructing a gridded biological sand fixation system. The present invention achieves high-precision identification of wind-eroded sand beaches, coordinated control of structurally stable filling and ecological restoration, and has the advantages of strong stability and wide applicability.

This product is used for retaining walls, revetments, erosion control dams, sabo dams, etc., and is used as a packing stone inside. As shown in the reference front view and reference plan view, multiple products can be connected together and used.

The utility model discloses an anti-scouring river bank protection structure, and relates to the technical field of river regulation. The slope protection structure comprises a slope protection body, the slope protection body comprises a foundation layer, the foundation layer is laid on a river bank side slope, the bottommost layer of the foundation layer is a broken stone hardcore, the middle layer of the foundation layer is a gravel layer, and the top layer of the foundation layer is geotechnical cloth; the surface protection layer body covers the foundation layer and is composed of a plurality of prefabricated blocks which are connected with one another, a cavity is formed in each prefabricated block, and the adjacent prefabricated blocks are spliced with one another; the anchoring assembly comprises a plurality of spiral anchor rods and anchoring plates, the spiral anchor rods penetrate through the foundation layer and the surface protection layer body and are firmly connected with river bank soil or rock, and the anchoring plates are tightly attached to the junctions of the adjacent prefabricated blocks through the spiral anchor rods. According to the utility model, the structure of the slope protection is optimized and improved, and the foundation layer and the surface protection layer body are mounted and reinforced through the anchoring components, so that the mounting convenience and the use stability of the slope protection are improved.

This invention relates to the field of coastal ecological restoration technology, specifically to an ecological protection slope that mimics a natural coastline and its construction method. Along the sea-to-land direction, it comprises: a simulated natural dike foundation erosion control structure and an ecological vegetation restoration structure. The simulated natural dike foundation erosion control structure and the ecological vegetation restoration structure work together to form a coastal protection slope system that mimics a natural morphology and combines erosion resistance with ecological restoration functions. This invention forms a gradient protection system by setting up the simulated natural dike foundation erosion control structure and the ecological vegetation restoration structure. Simultaneously, the dike foundation structure utilizes the core features of prefabricated hollow concrete components stacked and corbelled, filled with natural rock blocks, and pre-reserved gaps between rocks and tidal pools. Combined with the basic components of the vegetation restoration structure, it achieves the integration of erosion protection, ecological habitat construction, and natural landscape restoration, fundamentally solving the problem of the disconnect between protection and ecology in the management of steep erosion coastlines.

The invention discloses an erosion control subsystem. The erosion control subsystem includes a first portion having a first dense fibrofelt, the first portion having a first water permeability. The erosion control subsystem includes a second portion adjacent the first portion, the second portion having a second dense fibrofelt, the second portion having a second water permeability. The first permeable rate is greater than the second permeable rate.

This invention discloses a method and system for dynamic monitoring of arsenic-bearing sandstone slope erosion, belonging to the field of geological disaster monitoring technology. The method includes establishing monitoring sample areas on arsenic-bearing sandstone slopes, acquiring initial topographic point cloud data, generating a baseline digital elevation model (DEM), and identifying vegetation spatial patterns; real-time collection of rainfall data, triggering an erosion monitoring program when rainfall parameters meet preset trigger conditions; acquiring real-time topographic point cloud data, generating a current DEM, and obtaining a slope fissure feature set; classifying erosion intensity based on the elevation change between the current DEM and the baseline DEM; determining the erosion control effect coefficient of each vegetation coverage zone by combining vegetation spatial pattern data; establishing an erosion risk assessment model, and outputting the erosion sensitivity classification and key protection area identification results for the monitoring sample areas. This invention achieves automated, high-precision dynamic monitoring of arsenic-bearing sandstone slope erosion, providing a scientific basis for soil and water conservation and geological disaster prevention.

The invention relates to the technical field of soil fertility improvement and soil erosion prevention and control, in particular to a method for reducing the erodibility of soil in a wind erosion and water erosion staggered region. The method comprises the following steps: one year before sowing, thoroughly decomposed cow dung and sheep manure are uniformly applied to the earth surface for deep ploughing, and the depth is 15-25 cm; inorganic fertilizer is used as base fertilizer to be applied to the land together with the seeds during sowing; different amounts of urea are applied for topdressing in the jointing stage. The organic fertilizer (cattle and sheep manure) and the inorganic fertilizer are reasonably combined and applied, so that soil erodibility indexes (such as aggregate stability, organic matter content, cohesive force, compactness and the like) are remarkably adjusted, a comprehensive index for evaluating the soil erodibility is also constructed, key factors influencing the soil erodibility are analyzed, and the soil erodibility evaluation method has the advantages that the soil erodibility evaluation accuracy is improved. The method is suitable for the black soil area along the foot of the great khingan with staggered wind and water erosion.

The invention discloses a method for quickly treating wetland edge water and soil loss by using sonchus brachyotus, which comprises the following steps: 1) performing field exploration, and determining the bare soil area and gradient of a to-be-treated region; 2) summarizing and analyzing data, and dividing and grading a target governance area; 3) planting sonchus brachyotus: planting sonchus brachyotus in the target treatment area according to the determined area gradient, bare soil area and grading of the target treatment area; and 4) continuous monitoring and timely reseeding are carried out, so that the continuity of the number of sonchus brachyotus plants in the target treatment area is ensured. According to the method disclosed by the invention, by utilizing the characteristics that root systems of the sonchus brachyotus can fix soil, reduce erosion, absorb and accumulate soil nutrients and improve soil quality, the sonchus brachyotus is reasonably and densely planted at the edge of the wetland, so that the rapid effect of treating water and soil loss of the wetland is realized; the method has the advantages of low cost, good effect, simplicity and convenience in operation and the like, and is suitable for rapid treatment and recovery of water and soil loss caused by early damage of a wetland ecosystem.

An erosion control securing apparatus and method is disclosed. For example, an erosion control securing device is provided that includes a main shaft with a hexagonal-shaped head portion at its proximal end and a coil portion at its distal end. In one example, the coil portion of the erosion control securing device includes three turns. Further, a method of using the presently disclosed erosion control securing device for securing erosion control products is provided.

An erosion control securing apparatus and method is disclosed. For example, an erosion control securing device is provided that includes a main shaft with a hexagonal-shaped head portion at its proximal end and a coil portion at its distal end. In one example, the coil portion of the erosion control securing device includes three turns. Further, a method of using the presently disclosed erosion control securing device for securing erosion control products is provided.

The invention relates to a method for determining the depth of an erosion gully traceability concave hole, and the method comprises the steps: S1, building a gully head traceability erosion cell and collecting a gully head picture in order to achieve the rapid and accurate measurement: 1.1, building a three-dimensional coordinate system: 1.2, carrying out the coordinate transformation; s2, reconstructing the three-dimensional shape of the gully head: 2.1, importing and aligning a picture; 2.2, loading a control point and pricking a point; 2.3, re-aligning the picture; 2.4, generating a point cloud and a DEM of an inner concave hole, and S3, extracting and calculating the depth of the inner concave hole: 3.1, creating a fishing net to extract the depth of the inner concave hole, 3.2, screening effective depth data of the inner concave hole, and 3.3, calculating the depth of the inner concave hole. The method has the advantages that the measuring stability is good, the error is small, the efficiency is remarkably improved, the problem that the datum plane of the concave hole is difficult to determine after the gully head collapses in the traceability erosion process is solved, rapid and accurate measurement can be achieved, and efficient technical support is provided for erosion gully treatment.

The invention relates to the technical field of wind erosion control, in particular to an artificial directional hydraulic reclamation maintenance regulation and control method suitable for a wind erosion sand beach, which comprises the following steps: generating a wind erosion risk distribution thermodynamic diagram based on sand beach elevation point cloud data and a historical wind erosion vector diagram, and marking a strong wind erosion area as a targeted maintenance area; according to the particle size analysis result of the in-situ sand, a coarse sand layer, a medium sand layer and a fine sand layer are constructed in sequence through a particle size layer dividing hydraulic reclamation device; a continuous wave-shaped air guide ridge line is molded on the surface of the hydraulic reclamation area, the trend and the main harmful air direction of the ridge line are controlled, and the height-width ratio and gradient requirements of the ridge line are met; rhombic vegetation grooves are evenly dug in the slope surface of the leeward side of the ridge line, the slope surface is filled with a sandy soil-humus-water-retaining agent mixed matrix, saline-alkaline tolerant shrubs are planted, a high-density mycorrhiza fiber blanket activated by seaweed extracts is laid, and finally the gridding biological sand stabilization system is constructed. According to the method, high-precision recognition of the wind-eroded sand beach is achieved, structural stable hydraulic reclamation and ecological restoration coordinated regulation and control are achieved, and the method has the advantages of being high in stability and wide in applicability.

The application discloses a protection device for water and soil loss treatment, and relates to the field of water and soil loss protection, which comprises a cultivation plate, and a plurality of fixing strips are fixedly installed around the bottom of the cultivation plate, the number of the fixing strips is not less than four, and an expansion fixing assembly is arranged in the fixing strip, so that the shape of the fixing strip can be imitated to stabilize the soil, thereby reducing the amount of water and soil loss, and the detection assembly is cooperated with the fixing strip, first, the contact area and friction force with the soil are increased, the fixing strip is deeply penetrated into different soil layers through the "grasping" effect, the self-pulling capacity and stability of the fixing strip are improved, and the cultivation plate is prevented from loosening and moving due to water and soil loss, and second, the first soil breaking cone forms a three-dimensional network after being extended, the connection between soil particles is reinforced like plant roots, the displacement and loss of soil particles are inhibited, the scouring force of slope runoff is weakened during rainfall, and soil erosion is reduced.

The invention belongs to the technical field of soil improvement, and relates to a soil improvement material for improving mutual agglomeration of aeolian sandy soil nutrients and particles as well as a use method and application thereof. The invention provides a soil improvement material for improving aeolian sandy soil nutrients and inter-particle agglomeration force, the soil improvement material is formed by coupling a soft rock material, an organic fertilizer and an inorganic fertilizer, the organic fertilizer is decomposed cow dung, and the inorganic fertilizer is a nitrogen fertilizer, a phosphate fertilizer and a potassium fertilizer. The aggregate stability of the aeolian sandy soil is influenced by the interaction force of soil and the composition of composite soil particles, and the soft rock material and the organic fertilizer effectively improve the net attraction force between aeolian sandy soil nutrients and particles, the structural stability and the erosion resistance, so that important theoretical support can be provided for water and soil conservation and ecological environment construction of the Maujin sand land. And a new way can be provided for soil structure improvement and erosion control of sand-like land.

The application discloses a kind of lakefront city water front space blood prevention area ecological water conservancy comprehensive management method, comprising the following steps: using water-land ecosystem restoration technology to reconstruct and build composite artificial wetland to lakefront riparian zone;According to the present situation of lakefront riparian zone, the ecological water conservancy comprehensive management is carried out to lakefront riparian zone, and rain and sewage separation purification technology is used to the bank slope of lakefront riparian zone;Water conservancy blood prevention measures are used to regulate lakefront riparian zone;The pollution of lakefront riparian zone bottom mud is controlled;Selective inactivation blue-green algae technology and aquatic plants are used to purify and restore water body;The concept of ecology is introduced into river bank protection in the application, and the soil and slope protection and erosion control effect of vegetation are fully utilized, and living space is provided for animals and microorganisms, and river bank leisure landscape space is provided for human beings;Different revetments and slopes are set to ensure the drainage smoothness of ecological retaining wall revetment, and the water body is continuously circulated and exchanged, so that the water body achieves self-purification effect.

The invention relates to the technical field of soil erosion monitoring and evaluation, and discloses a soil erosion intensity measuring and calculating method and device based on high-resolution data driving, and the method comprises the steps: dividing water and soil loss data according to an engineering disturbance type and a catchment type, and obtaining a soil loss type; unmanned aerial vehicle operation data and disturbance survey data corresponding to the target production construction project are acquired, and land utilization type data, water and soil conservation measure data, rainfall data and surface change data are determined based on the unmanned aerial vehicle operation data and the disturbance survey data; calculating water and soil loss influence factors based on the land utilization type data, the water and soil conservation measure data, the rainfall data and the earth surface change data; and respectively calculating the soil erosion intensity based on the water and soil loss influence factors according to the soil loss type. According to the method, the precision and spatial resolution of soil erosion intensity measurement and calculation are remarkably improved, and a scientific basis is provided for soil erosion control and ecological environment construction in a small-scale range.

The utility model provides a molten iron diversion structure for an iron runner branch runner, which comprises a branch runner main body, a molten iron collecting area is arranged at the tail end of the branch runner main body, at least one molten iron diversion hole is arranged at the bottom of the molten iron collecting area, the center line of the molten iron diversion hole is perpendicular to the horizontal plane, and molten iron can flow to the molten iron collecting area along the branch runner main body. The molten iron flows out vertically and downwards through the molten iron flow guide hole; the device is reasonable in design structure and convenient to use, the channel head of the branch channel is blocked, and the molten iron flow guide hole for vertically and downwards guiding flow is formed in the tail of the branch channel, so that molten iron flows out vertically and downwards along the molten iron flow guide hole all the time when being guided out, on one hand, point positions falling on the swing chute can be consistent; the flushing control of different point positions of the swinging chute can be realized through different molten iron flow guide holes, the service life of the swinging chute below is prolonged, on the other hand, the problems of residual dripping and dripping at the tail end of the ditch head can be avoided, the overhaul frequency of the branch ditch head is reduced, and the overhaul cost is reduced.

To provide an anchor bolt protection structure for erosion control structure that is excellent in maintainability, economy, etc., by preventing (blocking) direct impact of debris such as gravel in a debris flow on the anchor bolts, particularly on the heads of the leading anchor bolts installed on the upstream side in occurrence of debris flow, thereby preventing deformation of the anchor bolt heads.SOLUTION: In an anchor bolt protection structure for erosion control structure 1 that consists of an erosion control structure 1 with a base plate 11 at its lower end, and is installed on a concrete foundation 4 with anchor bolts 2 and nuts 3, a protective member 5 is erected on the base plate 11 of at least an upstream column member 12 constituting the erosion control structure 1 to prevent debris such as gravel from a debris flow from directly hitting the anchor bolts 2. The protective member 5 is a plate member and is erected in a wall-like shape on an upstream side of the anchor bolts 2 located upstream of the base plate 11 of the upstream column member 12.SELECTED DRAWING: Figure 2

This invention relates to the field of ecological agriculture technology, specifically disclosing a segmented erosion control method for sloping farmland based on plant hedges. The method includes the following steps: dividing the sloping farmland into upper, middle, and lower planting areas according to the terrain from high to low; and then correspondingly installing upper, middle, and lower planting hedges, and constructing a plant community in the lower area. The installation of upper planting hedges includes inoculating the rhizosphere soil with nematodes, or with a combination of nematodes and microbial agents. The microbial agents include at least one of Bacillus, Arthrobacter, Neurospora, or Penicillium. This invention integrates "source control, reservoir enhancement, and potential tapping," effectively intercepting surface runoff and increasing soil moisture infiltration by altering the slope's micro-topography. This is of great significance for improving soil fertility and water and fertilizer resource utilization in dryland farmland, reducing fertilizer use and nitrogen and phosphorus loss, balancing nutrient distribution on the slope, increasing nutrient utilization, and ensuring ecological security.

Systems and methods for stabilizing and controlling the erosion of waterbody shorelines.