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

The invention discloses a debris flow draining and guiding groove based on step type erosion protection dentated sill group and application thereof. the debris flow draining and guiding groove comprises flow limiting walls, and a step type erosion protection dentated sill group disposed therein connected and cooperated therewith; the step type erosion protection dentated sill group consists of a plurality of erosion protection dentated sills imbedded in a certain depth with a certain distance therebetween; the transverse length B of the erosion protection dentated sill in the direction perpendicular to the flow limiting wall is less than the width D of the debris flow draining and guiding groove; and the erosion protection dentated sills are staggered between the two flow limiting walls. Compared with the current technologies, the invention can fully drain the debris flow safely and smoothly with low cost, can meet the requirement from structrual type mud flow to mountain torrents burst in the drainage area; and can maintain the contacting of the aquatic organisms in the groove bed to benefit the groove ecology restoration.

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 anti-scouring device of an offshore wind power base structure. The anti-scouring device comprises a conical flow guiding device. The conical flow guiding device is arranged on the periphery of a pile and located at the position of a mud line. An apron board is arranged below the conical flow guiding device. The apron board is arranged inside seabed soil. The conical flow guiding device is arranged as a conical cap. The gradient of the conical flow guiding device is 3:1. When the diameter of the pile is not larger than 2m, the height of the apron board is 2.5 times the diameter of the pile. When the diameter of the pile is larger than 2m, the height of the apron board is 1.5 times the diameter of the pile. The radius of the apron board is equal to that of a scouring pit. The height of the apron board is equal to the depth of the scouring pit. Compared with a traditional method, the anti-scouring device has the advantages that regular inspection and maintenance are not required, the cost of the added structure is smaller and can be neglected, the anti-scouring effect is good, and the structural dynamic characteristics can not be changed in the service time.

The invention discloses an artificial structure body used for the scouring prevention of mud-rock flow and a weir dam and an application thereof. The artificial structure body comprises four column bodies with the same length, wherein one end of the four column bodies are fixed at a point in a concentrated way, and the other end forms four top points of a regular tetrahedron in space. The artificial structure body is placed in a ditch of mud-rock flow or an overflow port section of a weir dam in a single way or in a way of connecting in series for use. Compared with the prior art, the invention can prevent the quick downcut of the ditch of the mud-rock flow, lower the risk of dam break caused by the quick downcut of an overflow port of a weir dam body greatly, meet the requirements of the scouring prevention and the mud-rock flow discharge of the ditch of the mud-rock flow and the scouring prevention and the safe flood discharge of the overflow port of the weir dam and protect the safety of important engineering facilities and residential areas at side banks; the invention saves the manufacturing cost by more than 15% in comparison with a traditional solid regular tetrahedron structure and has convenient construction and better effect of scouring prevention.

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 flexible energy-dissipating flow-guiding anti-scour device and an application method. The device is used for local scour protection of a pile foundation and comprises a flexible protective sleeve, a rigid guide plate and a flexible protective pad, wherein the flexible protective sleeve is arranged on a pile in a wrapping mode, the rigid guide plate is arranged at the topof the flexible protective sleeve, and the flexible protective pad is laid on the periphery of the pile foundation. According to the flexible energy-dissipating flow-guiding anti-scour device, the flexible protective sleeve is utilized to absorb kinetic energy of incoming flow, so that the velocity of the incoming flow is reduced; the rigid guide plate is utilized to block and disinfect descendingwater flow from a water surface of the pile foundation, so that the volume and direction of the descending water flow are changed, the descending water flow is forced to be divided towards two sides,and the intensity of a horseshoe-shaped vortex is reduced; the flexible protective pad is utilized to protect the bottom of the foundation, so that impact energy of the descending water flow is reduced, the energy of the incoming flow at the sea bottom mainly acts on the flexible protective pad, and consequently the effects of transporting and undercutting on sea bottom soil are avoided; and theflexible protective pad has good collaborative adaptability to sea beds with different pile foundations, thereby being suitable for various complicated sea bottom surfaces.

The invention discloses an offshore wind power foundation with a sand guiding function. The offshore wind power foundation with the sand guiding function comprises a pile foundation, an anti-sinking plate and a sand guiding assembly, 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, an anti-sinking plate sleeves the pile foundation, and the lower surface of the anti-sinking plate is suitable for being attached to the seabed surface; and the sand guiding assembly comprises a sand guiding pipe and a driving part, the sand guiding pipe is arranged on the upper surface of the anti-sinking plate, the sand guiding pipe is used for guiding sand on the peripheral side of the anti-sinking plate to the pile foundation, and the driving part is connected with the sand guiding pipe and used for driving the sand guiding pipe to guide sand. The offshore wind power foundation with the sand guiding function has the advantages of being simple in structure, safe, reliable and good in anti-scouring effect.

The invention discloses an offshore wind power multi-pile foundation. The offshore wind power multi-pile foundation comprises a plurality of pile foundations, a platform and a sleeve, the multiple pile foundations are arranged at intervals, the platform is located on the multiple pile foundations, each pile foundation comprises a first part and a second part which are connected with each other in the axial direction of the pile foundation. The second part is embedded in a seabed, the seabed is provided with a seabed surface, the first part is located above the seabed surface, the multiple pile foundations comprise first pile foundations right facing the tidal current direction and second pile foundations back to the tidal current direction, and outwards-protruding turbulent flow pieces are arranged on the peripheral face of the sleeve, and / or a through hole is formed in the peripheral wall of the sleeve, the sleeve comprises a first sleeve and a second sleeve, the first sleeve is arranged on the first part of a first pile foundation in a sleeving mode, and the second sleeve is arranged on the first part of a second pile foundation in the sleeving mode. The offshore wind power multi-pile foundation has good anti-scouring performance and stability.

The invention relates to a side wing foundation scour-resistant reinforcing structure for enhancing stability of a road shoulder wall. The side wing foundation scour-resistant reinforcing structure comprises a base and an upper wall body, wherein the base is arranged in a river bed material in an embedded manner, and the upper wall body is arranged on the base. The base comprises wall toe L-shaped beam type key wall foundations and a wall heel L-shaped beam type key wall foundation, wherein the wall toe L-shaped beam type key wall foundations are arranged at the inner side and the outer side of the upper wall body correspondingly. The outer side face of a wall body of the upper wall body is an oblique face, and the inner side face of the wall body is a broken line face. According to the side wing foundation scour-resistant reinforcing structure for enhancing stability of the road shoulder wall, the advantages, such as scour resistance, differential settlement resistance, skid resistance and overturning resistance, of the L-shape beam type key wall foundations are fully utilized; fluid-scour resistance, integrity of differential settlement resistance and stability of skid resistance and overturning resistance of a side wall are improved in a segmented manner; scour resistance of an outer side wing and reinforcing of the inner side edge of the road shoulder wall can be combined organically; the situation that safety of the whole road shoulder wall is endangered due to local damage of the side wall is avoided; it is fully guaranteed that the road shoulder wall plays a normal role in support, blocking and protection; and engineering cost and maintenance cost are saved.

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 discloses an anti-scouring negative pressure multi-barrel combined offshore wind turbine base combined with artificial fish reefs. The anti-scouring negative pressure multi-barrel combined offshore wind turbine is characterized in that annular connecting chambers are welded among negative pressure barrels, an integral annular structure is formed, annular top plates and transition sections are arranged at the upper parts of the negative pressure barrels, and guide pipe racks are connected to the upper parts of the transition sections; an arranged flow reducing net is composed of asteel pipe frame and a polythene net, the steel pipe frame and the annular connecting chambers are welded, and the steel pipe frame and the annular top plates are poured together; an anti-scouring net grid which is of a meshy structure formed through connecting nylon ropes and waste tyres is arranged, and an artificial fish reef group is uniformly pressed on the anti-scouring net grid; and negative pressure pumping openings are formed in the tops of the negative pressure barrels and the upper parts of the annular connecting chambers, and the negative pressure pumping openings penetrate through the annular top plates above, and are connected with negative pressure pumping equipment. The anti-scouring negative pressure multi-barrel combined offshore wind turbine base has the beneficial effects that compared with present offshore wind turbine bases, the anti-scouring negative pressure multi-barrel combined offshore wind turbine base has the advantages that construction cost of the offshore wind turbine base and artificial fish reefs is reduced, the anti-scouring capacity of the offshore wind turbine base is improved, adverse effects of offshore wind turbines on the marine environmentare reduced, and ecological benefits of an offshore wind plant are improved.

The invention provides an offshore wind power foundation. The offshore wind power foundation comprises a pile foundation and a turbulent flow structure. The pile foundation comprises a first part and a second part which are mutually connected in the length direction of the pile foundation, the second part is embedded in a seabed, the seabed is provided with a seabed surface, the first part is located above the seabed surface, and the turbulent flow structure is at least arranged on the first part. The turbulent flow structure comprises turbulent flow pieces protruding from the peripheral face of the first part in the first direction and / or turbulent flow holes penetrating through the peripheral wall of the first part in the first direction, and the first direction is orthogonal to the length direction of the pile foundation. The turbulent flow structure is arranged, so that the effects of energy dissipation and impact reduction are achieved, formation of horseshoe-shaped vortexes near the pile foundation is restrained, soil around the pile foundation is effectively protected, and formation of scour pits is avoided. Compared with a riprap protection method in the related technology, the stability is higher, the anti-scouring effect is better, and the reliability is better.

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 offshore wind power foundation with a turbulent flow net. The offshore wind power foundation with the turbulent flow net comprises a pile foundation and the turbulent flow net, the pile foundation comprises a first part and a second part which are connected with each other in the length direction of the pile foundation, the second part is buried in a seabed, the seabed is provided with a seabed surface, and the first part is located above the seabed surface; and and the turbulent flow net is located above the seabed surface, the turbulent flow net is at least arranged on the first part, the turbulent flow net protrudes from the peripheral face of the first part in the first direction, the first direction is orthogonal to the length direction of the pile foundation, the turbulent flow net is of a net structure wrapping at least one part of the peripheral face of the first part, the outer diameter of the first part is D, and the area of the peripheral surface of the first part wrapped by the turbulent flow net is larger than or equal to 1.0 piD2. The offshore wind power foundation with the turbulent flow net has the advantages of being simple in structure, high in practicability, long in service life and the like.

The invention discloses an offshore wind power anti-scouring device with an energy dissipation structure. The offshore wind power anti-scouring device comprises a pile foundation and a sleeve, the pile foundation comprises a first part and a second part which are mutually connected in the axial direction of the pile foundation, the second part is buried in a seabed, the seabed is provided with a seabed surface, and the first part is located above the seabed surface; and the sleeve sleeves the first part, the bottom of the sleeve is supported on the seabed surface, the energy dissipation structure is arranged on the sleeve, the energy dissipation structure comprises an energy dissipation piece protruding outwards from the peripheral surface of the sleeve and / or an energy dissipation hole penetrating through the peripheral wall of the sleeve, the peripheral surface of the sleeve comprises a front surface facing the tidal current direction, a back surface opposite to the front surface and two side surfaces, and the energy dissipation structure is at least arranged on the front face and the back face. The offshore wind power anti-scouring device with the energy dissipation structure has the advantages of being simple in structure, high in tide impact resistance, long in service life and the like.

The invention relates to a debris flow drainage groove, in particular to a debris flow drainage groove provided with a truss type energy dissipating sill. The debris flow drainage groove comprises flow constraining side walls arranged at the two sides of a channel and the truss type energy dissipating sill, the truss type energy dissipating sill is composed of multiple sill plates which are connected in a fold-line pattern, and the two ends of each sill plate are further fixedly connected with the flow constraining side walls; the lower portions of the sill plates are deeply embedded underground. By means of the debris flow guide groove provide with the truss type energy dissipating sill, the fabrication cost is saved by over 10%, and the management and maintenance for long-time running of a project are facilitated; compared with a transversely-penetrating type sill, the anti-scouring effect is better, the project is more durable, the sill is capable of adapting to drainage requirements for wide-range changes from a viscous debris flow to a mountain area flood breaking out in a drainage basin, the upstream and downstream relevance of aquatic organisms in the channel can be further maintained, and the ecological restoration of the channel is facilitated.

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.

The invention discloses an anti-scouring device of an offshore wind power base structure. The anti-scouring device comprises a conical flow guiding device. The conical flow guiding device is arranged on the periphery of a pile and located at the position of a mud line. An apron board is arranged below the conical flow guiding device. The apron board is arranged inside seabed soil. The conical flow guiding device is arranged as a conical cap. The gradient of the conical flow guiding device is 3:1. When the diameter of the pile is not larger than 2m, the height of the apron board is 2.5 times the diameter of the pile. When the diameter of the pile is larger than 2m, the height of the apron board is 1.5 times the diameter of the pile. The radius of the apron board is equal to that of a scouring pit. The height of the apron board is equal to the depth of the scouring pit. Compared with a traditional method, the anti-scouring device has the advantages that regular inspection and maintenance are not required, the cost of the added structure is smaller and can be neglected, the anti-scouring effect is good, and the structural dynamic characteristics can not be changed in the service time.