44results about How to "Improve anti-scouring effect" patented technology

The invention discloses an unfired magnesia-alumina spinel brick. The unfired magnesia-alumina spinel brick comprises the following chemical components by mass: 80 to 90% of fused magnesia, 5 to 15% of magnesium-rich magnesia-alumina spinel, 1 to 3% of micro alumina powder, 1 to 3% of aluminum-silicon alloy powder and 0.2 to 0.6% of B4C. The chemical components are bonded together by using 3.5 to 5 wt% of an added binder. The content of magnesium oxide in the fused magnesia is greater than 98 wt%, and the content of magnesium oxide in the magnesium-rich magnesia-alumina spinel is greater than 30 wt%. The unfired magnesia-alumina spinel brick provided by the invention has excellent slag reaction resistance, slag penetration resistance, anti-stripping performance, anti-scouring performance, resistance to oxidation and a long service life, does not include the harmful element--chromium, avoids pollution and harm to human beings and the environment, needs low production cost and has a wide application scope.

The invention discloses an offshore wind power foundation anti-scouring structure and a construction method thereof. The offshore wind power foundation anti-scouring structure comprises a cylindricalfoundation arranged on a seabed and aligned to the seabed level, and a horn-shaped foundation transition section with the cross section decreasing from bottom to top is arranged on the top surface ofthe cylindrical foundation, a tower tube is fixedly arranged at the top of the foundation transition section through a flange plate, short piles pressed into the seabed are arranged at the periphery of the cylindrical foundation in the circumferential direction, second buckles are fixedly arranged at the intersections of connecting lines of each short pile pointing to the center of the cylindricalfoundation and the periphery of the cylindrical foundation, first buckles are fixedly arranged on the top sides of the short piles, annular covering films are laid between the second buckles and thefirst buckles, inner rings of the covering films are fixedly connected with the second buckles, and outer rings of the covering films are tightened by first cables arranged on the first buckles; the other ends of the first cables are fixedly connected to the tower tube. The invention aims to provide a fast, efficient and economical erosion protection method for the cylindrical foundation, and theoverall safety performance of the cylindrical foundation is improved.

The invention provides anti-seepage steel environment-friendly tundish fire clay, a preparation method and a construction method, and the anti-seepage steel environment-friendly tundish fire clay comprises the following preparation raw materials in parts by mass: 5-40 parts of white corundum, 35-80 parts of high bauxite, 5-35 parts of kyanite, 0.5-5 part of silica powder, 0.1-5 part of clay, 0.1-4part of zirconium oxide powder and 0.1-1 part of a water reducing agent. The tundish fire clay does not contain chromium, so that chromium pollution can be avoided; the viscosity of the fire clay isreduced through proper raw material particle size distribution, and field construction is facilitated; by adding zirconium oxide and utilizing the phase transformation toughening principle at the hightemperature, the high-temperature breaking strength of the fire clay is greatly improved, and the fire clay can resist to high-temperature molten steel scouring in the using process; and by adding kyanite and Al2O3-containing raw materials and using phase transformation at the high temperature of kyanite and expansion generated by secondary mullite, shrinkage, caused by liquid adding, of the fireclay is made up, gaps between the fire clay and the tundish nozzle are avoided, and the problem of steel seepage is solved.

The invention belongs to the technical field of offshore wind power, and particularly relates to an automatic installation anti-scouring protection device for offshore wind power. The device comprisesa wind power foundation; the lower part of the wind power foundation is sleeved with a bionic grass support assembly in a matched mode; the bionic grass support assembly comprises a flexible supporting layer, bionic grass, a floating ring and a supporting pipe; an electric rope winder is annularly arranged on the upper part of the wind power foundation; the electric rope winder is connected witha corresponding supporting pipe through a lifting rope; and the electric rope winder is capable of driving the bionic grass supporting assembly to be folded or unfolded through the lifting rope. Compared with a traditional offshore wind power scouring prevention mode, the device has the advantages that bionic grass is adopted for scouring prevention, the price of raw materials is low, and the scouring prevention effect is good by fundamentally controlling generation of scouring; and according to the device, the traditional bionic grass anchoring step can be omitted, the installation difficultyis reduced, the installation cost is reduced, and the early-stage investment cost of offshore wind power plant construction is greatly reduced.

The invention relates to a method for making ecological building bricks through in-situ pre-pressing forming from dredge mud, which comprises the following steps that: 1, raw materials comprise river channel dredge mud, cement, clastic rocks, sand and water; 2, the materials are uniformly mixed and are loaded into a river channel protection slope prefabricated mold for prefabrication and forming;3, after the pre-pressing forming, the plant growth nutrition pulp is extruded into a building brick hole gap, and then, steaming and pressing maintenance is carried out; 4, soil, fertilizers, insecticide, water and plant seeds are uniformly mixed to be made into plant growth substrates, and the made plant growth substrates are extruded and conveyed to the prefabricated building brick hole gaps by an extruding pump; 5, the building bricks extruded with the plant growth substrates are sent into a steaming and pressing maintenance shop for maintenance; and 6, the materials are placed for 28 days under the natural conditions. The method has the advantages that the in-situ treatment of the dredge mud is realized, the dredge mud is changed into resources to be utilized, the plant growth requirements are met, and the problems of plant recovery difficulty and the like caused by flushing and nutrient loss can be avoided. The ecological building bricks have the characteristics of high intensity and flushing resistance. The plant growth substrates have the effects of ensuring the protection slop plant recovery, improving the river channel protection slop ecological system and building good river channel landscape.

The invention relates to an anti-scour offshore wind power fan. An anti-scour region which is formed by a plurality of splicing layers conducts anti-scour protection on a fan foundation. Supporting frameworks can support geotextile cushion layers, the flatness of the geotextile cushion layers is improved, the corners cannot be prone to curling, and therefore the stability of the structures of thegeotextile cushion layers is improved. The multiple splicing layers are connected with each other in an overlap joint mode and cannot be limited with each other, and therefore different splicing layers can heave along with the terrain of the seabed and preferably cover the seabed. In addition, the anti-scour region can adapt to the terrain of the seabed by itself. The corresponding splicing layerscan also correspondingly adjust the angles and the heights along with the scour deformation of the seabed, and therefore the overlarge gaps are prevented from being formed between the splicing layersand the seabed. As a result, the anti-scour region which is formed by the multiple splicing layers can achieve dynamic adjustment and preferably cover the seabed on the periphery of the fan foundation all the time. It can be seen that the anti-scour offshore wind power fan is good in anti-scour effect.

Provided is a pier anti-scouring and anti-impact water flow power generation system. An anti-scouring assembly (1) comprises a left cavity, a right cavity and outer protective layers (8), wherein the left cavity and the right cavity are jointly formed by an inner protective layer (5), an outer protective layer (6) and middle plates (7) and float on the water surface, the outer protective layers (8) are located on the left and right sides and provided with holes, and the whole anti-scouring assembly is formed through connecting pieces. An anti-impact assembly (2) is composed of a certain number of closed cavity anti-impact rollers (9) arranged at certain intervals. A water flow power generation and storage assembly (3) comprises two hydraulic generators (10) symmetrically arranged along a pier and two storage batteries (11) located at the top of the pier or the top of a bent cap, each generator is connected with the corresponding storage battery on the same side through a wire, and the water amount in the cavities is controlled through a water pump (12) so as to change the height of the system so that the hydraulic generators can be located at a proper water depth. A suspension assembly (4) is composed of a fixing frame (13) fixed to a proper position away from the top of the pier, two adjusting chains (14) on the left side and two adjusting chains (14) on the right side.

The invention discloses an offshore wind power foundation with an active desilting function. The offshore wind power foundation with the active desilting function comprises a pile foundation, a fixing frame, a sand guide worm and a driving wheel, the outer contour of the cross section of the pile foundation is circular, the pile foundation is at least partially buried in a seabed, the seabed is provided with a seabed surface, the fixing frame is arranged on the peripheral side of the pile foundation and connected with the pile foundation, the sand guiding worm is connected with the fixing frame and used for guiding sand on the peripheral side of the pile foundation to the pile foundation, the rotating center line of the driving wheel is orthogonal to the sea level, the driving wheel is connected with the sand guiding worm, and the driving wheel is suitable for being pushed by seawater to rotate so as to drive the sand guiding worm to guide the sand. The offshore wind power foundation with the active desilting function has the advantages of being simple in structure, safe, reliable and good in anti-scouring effect.

The invention relates to a cage type anti-scouring structure and a construction method. The structure comprises an anti-scouring piece sleeving the bottom of a pile foundation. The anti-scouring pieceis an annular soil bag, or the anti-scouring piece is in an annular shape formed by a plurality of soil bags, the adjacent soil bags are bound and connected through ropes, a plurality of anti-scouring units are placed into the soil bags, each anti-scouring unit is in a conical shape formed by four tires, the adjacent tires are connected through one or more bolts, and bag openings of the soil bagsare bound and sealed by ropes. The anti-scouring structure is reasonable in design, abundant in material source, convenient to construct, economical and reasonable in manufacturing cost and remarkable in anti-scouring effect, the foundation seabed stability is enhanced, the anti-scouring capability of structures is greatly improved, and the anti-scouring structure is applicable to all water depthranges.

The invention relates to an anti-scouring offshore wind turbine. An anti-scouring area formed by a plurality of splicing layers protects a wind turbine foundation from being scoured. A supporting framework can support an earth cushion layer to improve the flatness of the earth cushion layer and prevent corners from curling, and thus the stability of an earth cushion layer structure is improved. However, the splicing layers are overlapped with each other, and limiting does not form between the splicing layers, so that different splicing layers can fluctuate along with seabed terrain, and therefore the seabed is better covered. Moreover, the anti-scouring area can self-adapt to the seabed terrain. With the scouring deformation of the seabed, the corresponding splicing layers can further adjust the angle and height correspondingly under the action of own gravity, and thus excessive clearances between the splicing layers and the seabed are avoided. Therefore, the anti-scouring area formedby the splicing layers can be dynamically adjusted, so that the seabed around the wind turbine foundation can be well covered all the time. It can be seen that the anti-scouring offshore wind turbinehas a better anti-scouring effect.

The invention discloses a high-roadbed low-riverbed water damage prevention and control structure, and relates to the field of highway water damage prevention and control. A foundation toe apron, a step protection slope and a road shoulder wall are connected into an integrated protection structure, and the local foundation structure style is changed, so that the situation that a river does not easily scour the foundation toe of the structure is guaranteed, the roadbed stability is guaranteed, and the instability of a single protection mode under the working condition of a high breakwater and alow riverbed is effectively avoided. Therefore, scouring damage of rivers, floods and the like to a road is effectively controlled from bottom to top, engineering cost and maintenance cost are saved,and repeated water damage is avoided; and compared with other previous single protection structures, the anti-scouring effect is better, the stability and the overturning resistance are higher, engineering is more durable, investment is saved, the drainage function requirements of different scales of fluid (debris flow or flood) of a riverway can be met, the increasingly various transportation safety requirements of oversized heavy vehicles can also be met, and a certain use prospect is achieved.

The invention belongs to the field of slope protection and earthquake resistance. The problems that an existing reinforced retaining wall panel is poor in deformation adaptability at a rigid joint, and a flexible panel-free reinforced soil slope is large in occupied area are solved. The invention provides a construction method of an assembly type rigid and flexible combined elastic anti-seismic reinforced soil retaining wall. According to the reinforced soil retaining wall, by using geogrids, assembly type wall panels and elastic damping devices, the deformation adaptability of the retaining wall is greatly enhanced, and the occupied area of a project is reduced; the scouring damage of a slope surface is reduced; under the action of earthquake load, connecting steel plates of elastic damping connecting devices are used as splicing formworks, wall panel building blocks are allowed to have certain dislocation but not be damaged, and therefore damage to joints of the wall panels and the geogrids is reduced; and the geogrids on an upper layer and a lower layer are separately arranged, so that the stress is more reasonable, the structure is more stable, and the deformation fatigue lifeis long.

The invention discloses an inland river ecological beach protecting ball. The inland river ecological beach protecting ball comprises a middle ball body and six main rod parts which are fixed to the outer side of the middle ball body and are arranged in the radial direction, the six main rod parts are collinear in a paired manner, and three dimensions of a three-dimensional space are formed. Two symmetric connecting rings are fixed to the outer surface of the middle ball body. The invention further discloses a beach protecting structure adopting the inland river ecological beach protecting ball. Through the structure that the main rod parts are arranged on the three dimensions of the middle ball body, every three main rod parts form a tripod support structure, stability of the beach protecting ball is ensured, meanwhile, through the six main rod parts and 12 auxiliary rod parts, energy of water flowing through the structure is greatly weakened, the good scour prevention siltation promotion effect is achieved, the structure is easy to manufacture, construction is convenient, and the engineering investment is greatly saved.

The invention relates to an anti-scouring offshore wind turbine foundation. The anti-scouring offshore wind turbine foundation comprises a foundation body, an anti-scouring coating layer and an anti-scouring clamping ring, wherein the anti-scouring clamping ring is arranged on the foundation body in a sleeving mode, the anti-scouring clamping ring and the anti-scouring coating layer are arranged at an interval. The anti-scouring coating layer is arranged on the surface of a seabed in a covering mode, so that the protective effect on the seabed around the foundation body is achieved; further, when a water flow flows around the foundation body, the anti-scouring clamping ring can play a role in breaking a turbulent flow field and reducing shearing stress of the water flow around the foundation body, so that the scouring capability of the water flow is greatly weakened; on one hand, the scouring action of the water flow on the seabed can be weakened; and on the other hand, weakening of the water flow scouring capacity can further prevent the anti-scouring coating layer from being quickly scoured, so that the anti-scouring coating layer is kept for a long time, the continuous protective effect on the seabed is achieved, and therefore, the anti-scouring effect of the above anti-scouring offshore wind turbine foundation is good.

The invention provides an interlocking ecological precast slope protection brick which comprises a rectangular brick body, wherein long-edge grooves are formed in the rectangular long-edge sides of the brick body; short-edge grooves are formed in the rectangular short-edge sides of the brick body; vertical reserved cable holes are arranged in the longitudinal direction of the brick body in a penetrating manner; transverse reserved cable holes are arranged in the transverse direction of the brick body in a penetrating manner; and plant growth holes are formed in the middle of the brick body. The interlocking ecological precast slope protection brick provided by the invention has not only the characteristics that the interlocking slope protection brick paving process is simple, the structureis symmetric and the interlocking property is strong but also the advantage that a net pavement is formed by adopting hinging bricks; furthermore, the anti-washing property is outstanding; the landscape and the ecology can be combined; and the defects of a conventional precast brick can be perfectly overcome.