4657results about "Coastlines protection" patented technology

Disclosed are exemplary embodiments of sediment / erosion / perimeter control devices and methods of making and using the same. In exemplary embodiments, a sediment / erosion / perimeter control device (e.g., a wattle, etc.) comprises a material configured such that the sediment / erosion / perimeter control device is reconfigurable between at least a first configuration and a second configuration. In the first configuration, the sediment / erosion / perimeter control device has a first size, shape, volume, and / or weight. In the second configuration, the sediment / erosion / perimeter control device has a second size, shape, volume, and / or weight substantially larger than the corresponding first size, shape, volume, and / or weight that the sediment / erosion / perimeter control device has in the first configuration.

The invention relates to the technical field of seabed sand excavation pit repair, and discloses a seabed sand excavation pit repair control method and system based on marine dredged mud. The method comprises the steps that surveying and mapping and environment analysis are conducted on a seabed sand excavation pit, three-dimensional topographic data are obtained, and dredged mud is improved; formulating a filling scheme based on data analysis, and establishing a barge and pipeline combined transportation system; filling materials layer by layer, and tamping and grouting; a three-layer protection structure is constructed, and a gabion mesh cage and an energy dissipation device are additionally arranged in a high-risk area; and the restoration effect is evaluated by monitoring the network to form an evaluation database. According to the method, marine dredged mud is used as a main material, and efficient and stable repairing of the seabed sand excavation pit is achieved through scientific improvement treatment and layered filling technologies in combination with multi-layer protection measures and a perfect monitoring and evaluating system.

The present invention relates to the technical field of ecological management, and relates to a river shoreline Juncao ecological protection barrier and a construction method therefor. A Juncao shoreline ecological protection barrier is formed by constructing a windward slope surface Juncao wind prevention and sand (soil) fixation belt, a leeward slope surface Juncao composite grass hedge belt for preventing sand (soil) from entering a river, and a shoreline slope surface Juncao biological protection embankment. The river shoreline Juncao ecological protection barrier and the construction method therefor provided in the present invention are biological measures with low investment and quick effect, forming an effective river shoreline Juncao ecological protection barrier, achieving the effects of rapid wind prevention and sand (soil) fixation, preventing sand (soil) from entering the river, and improving species diversity. Additionally, the solutions provided in the present invention achieve a win-win situation in terms of ecological and economic benefits; in dry season, the planted Juncao can be harvested with stubble left, the harvested Juncao serves as a culture material for edible and medicinal fungi, livestock and poultry feed, biological energy, a biomass material and the like, so that the economic benefit is improved; and the remaining stubble of Juncao continues to exert the ecological value thereof by preventing wind and fixing sand (soil), and preventing sand (soil) from entering the river.

The present invention relates to the technical field of water conservancy construction. Disclosed is an ecological restoration revetment structure, which is applied to a slope surface. The ecological restoration revetment structure comprises: a laying net which is laid from the top to the bottom of a slope, wherein a plurality of planting holes are provided in the surface of the laying net; and a plurality of frame blocks, all of which are detachably connected to the surface of the laying net, wherein each frame block has a limiting hole, and the limiting hole in each frame block corresponds to a set number of planting holes. By means of the cooperation of the laying net, inserting portions and blocking portions, the present invention can perform slope reinforcement and water flow blocking operations on a slope surface, thereby reducing the influence of water flow scouring on the slope surface. Specifically, the laying net is directly laid from the top to the bottom of a slope, and the frame blocks are then mounted on the laying net. When the frame blocks are mounted, the inserting portions are guided to be inserted into the slope, and the blocking portions then block and converge water spreading from the edges of the ends of the frame blocks away from the bottom of the slope, and guide the water to the surface of the laying net on two sides of each frame block. Figure accompanying the abstract

The invention relates to the technical field of slope protection structures, in particular to a slope protection structure for vegetation buffer strip repair, which comprises a fixed seat, an adjusting mechanism rotatably connected to the fixed seat, an adjusting seat rotatably connected to the adjusting mechanism, a rotating rod rotatably connected to the adjusting seat, and two slope protection frames fixedly connected to the rotating rod. The U-shaped frames are fixedly connected to the slope protection frame, the reed planting mechanisms are rotatably connected to the U-shaped frames, the manger boards are fixedly connected to one sides of the U-shaped frames, and the sunshade mechanisms are rotatably connected into the manger boards. The angle of the slope protection frame can be adjusted to be suitable for the angle of the reservoir shoal, so that reeds planted at the reservoir shoal can be centralized and fixed, the slope protection and water and soil conservation functions in water conservancy projects are helped to be restored by utilizing the natural advantages of the reeds, and the ecological restoration effect is achieved in water edge areas such as the reservoir shoal.

The invention discloses an ecological management method for an eroded gully in a high and cold wet steppe area, which comprises the following steps: firstly, cleaning sundries in the eroded gully, and then performing slope cutting treatment on the gully bottom and gully slope of the eroded gully; pine piles or gabion protection feet are arranged at the bottom of a ditch slope of the erosion ditch; gabion check dams and / or raft pile dams are arranged in the extending direction of the channel of the erosion gully at intervals; vegetation is planted on a ditch slope of the erosion ditch, and an ecological intercepting ditch is formed in the top of the ditch slope; the comprehensive protection system is constructed through the measures of the channel stepped gabion check dam, the log raft piles, the channel slope stabilizing structure, the ecological revetment, soil protection, vegetation recovery and the like, extension and expansion of the erosion gabion are prevented, the stable state of the gabion bank is kept, ecological balance is promoted through vegetation recovery, the anti-scouring, stability and ecological function of the erosion gabion bank are enhanced, and the ecological protection effect of the erosion gabion bank is improved. The problems existing in the prior art are solved, and the purpose of long-term effective ecological treatment of the erosion gully is achieved.

The novel riverway protection slope comprises a protection assembly, the protection assembly comprises a slope body used for the riverway protection slope, a buffering table is arranged on one side of the slope body, supporting columns are arrayed at the top of the slope body at equal intervals, a protective fence is fixedly connected to the tops of the supporting columns, and warning lamps are arrayed on the upper surface of the protective fence at equal intervals. A solar panel is fixedly connected to the side, close to the buffering table, of the protective fence, and a water falling prevention assembly and a garbage collection assembly are arranged on one side of the slope body. Garbage is collected through the protective net, environmental pollution caused by the fact that the garbage falls into a river channel is avoided, the garbage collecting efficiency is improved by arranging the buffering table, the garbage collecting success rate is increased, buffering is provided for garbage falling, and the protective net is prevented from being damaged. Personnel are prevented from falling into water through the falling-into-water preventing assembly, rescue is provided for the personnel falling into water accidentally through the connecting rope and the life buoy, and safety is improved.

The invention relates to the field of hydraulic engineering riverway slope protection construction, in particular to a hydraulic engineering riverway slope protection concrete leveling device which comprises a leveling frame, sliding grooves are symmetrically formed in the leveling frame, moving frames are slidably connected into the sliding grooves, and limiting plates are fixedly connected to the bottom ends of the moving frames. The top end of the leveling frame is rotatably connected with rotating rods which are symmetrically arranged, the rotating rods are fixedly connected with extrusion plates, the interiors of the extrusion plates are fixedly connected with first powerful magnetic blocks, and the positions, adjacent to the extrusion plates, of the top end of the leveling frame are fixedly connected with supporting plates; the hydraulic engineering slope concrete leveling device has the beneficial effects that the situation that a leveling frame moves and inclines in the slope leveling process can be prevented, so that the leveling machining efficiency of hydraulic engineering slope concrete is improved, a limiting plate is conveniently detached, and the applicability of the leveling device is improved.

The invention relates to the technical field of river bank protection, in particular to a river bank slope protection for cofferdam construction and a construction method thereof. S2, construction of a near-water area structure; s3, construction of a far water area structure; s4, ecological enhancement; triple optimization of river bank protection is achieved through dynamic water level monitoring and modular design, a double-layer reinforced concrete and elastic sealant structure is adopted in a near-water area, the compressive strength is improved by 20%, the crack width is smaller than or equal to 0.2 mm, and material waste is reduced by 15% in cooperation with dynamic width adjustment (+ / -2 m); the mold bag concrete slope protection is combined with an atomization spraying system, the anti-scouring capacity reaches 5 m / (m.s), the vegetation coverage rate is larger than or equal to 80% within 3 months, and the water and soil loss rate is reduced by 70%; the modular honeycomb structure inflation assembly efficiency is improved by 40%, the transportation cost is reduced by 50%, the distributed sensors achieve structure displacement / pressure three-level early warning, the operation and maintenance cost is reduced by 70%, the overall service life is prolonged by more than 5 years, and an ecological-engineering collaborative protection system is formed.

The invention belongs to the technical field of building materials, and particularly relates to a flexible concrete blanket for side ditch protection and a preparation method thereof.The flexible concrete blanket comprises a permeable fabric located on the upper layer, a waterproof fabric located on the lower layer, and a cement solid-phase filler and flat fibers or fabrics located between the permeable fabric and the waterproof fabric; the permeable fabric and the waterproof fabric are connected through a plurality of sewing fibers which are arranged at intervals. According to the invention, by adding the flat fiber or the fabric into the cement solid-phase filler, on one hand, the flat fiber or the fabric can be sewed and fixed under the action of the sewed fiber, the binding and fixing effects on the cement solid-phase filler are enhanced, and on the other hand, the sewed density can be reduced, so that the flexibility of the concrete blanket is improved; the flat fiber or fabric can be used as a reinforcing phase to improve the strength of the concrete blanket.

The invention discloses a riverway dredging method which comprises the following steps: dynamically scanning a riverway along a spiral propulsion path, and obtaining riverbed topographic data and sediment thickness in real time; a three-dimensional riverbed model is established based on the riverbed topographic data, and a core dredging area, a transition maintenance area and an ecological reserve area are divided in the three-dimensional riverbed model according to the sediment thickness; the core dredging area is divided into a surface layer, a middle layer and a bottom layer in the vertical direction, and a differentiated dredging process is executed; carrying out mud-water separation treatment on the dredged material, purifying the separated water, and reinjecting the purified water into the river channel; prefabricated ecological concrete modules are laid on the surface of a dredged riverbed, diversion trenches and biological nests are formed, and the biological nests are filled with polylactic acid / straw composite fiber felts containing local submerged plant seeds. Through spiral scanning, three-dimensional modeling and intelligent partitioning, integration of monitoring, planning, construction and repairing is achieved, accurate dredging is implemented, and the dredging efficiency is improved.

The invention discloses a method for preventing and controlling salt water invasion of an aquifer at the bottom of an estuary river channel by building an impermeable layer, which comprises the following steps of: acquiring hydrogeological data of a prevention and control area, and determining the size of the area to be prevented and controlled according to an engineering expected effect; performing curing treatment on the foundation bed in the prevention and treatment area by using a curing agent material; leveling treatment is conducted on the curing area; laying an impermeable layer on the surface of the solidified foundation bed; smoothing the connecting area of the impermeable layer and the surrounding foundation bed; and laying a protective layer on the surface of the impermeable layer. Compared with an existing seawater invasion prevention and control method, the method is relatively simple in construction arrangement, low in investment cost and low in later maintenance cost, salt water can be effectively prevented from invading the coastal underground aquifer from the bottom of the river channel, and the method has a good application prospect.

The utility model provides a soft foundation levee slope reinforcing structure based on timber piles and geogrids. The soft foundation levee slope reinforcing structure comprises a soil levee body, a reinforcing levee slope, a soft soil levee foundation, the timber piles, a gravel soil backfilling layer, a ballast platform and the geogrids. An embankment top road is arranged at the upper part of the earth embankment body, and the side surface is an original embankment slope; the reinforced levee slope is located outside the original levee slope; the soft soil embankment foundation is located on the lower side of the soil embankment body. The lower ends of the timber piles are vertically inserted into the soft soil embankment foundation, and steel wire meshes are arranged at the tops; the gravel soil backfill layer is laid on the timber piles; the ballast platform is located on the upper side of the original levee slope and connected with the reinforced levee slope. The geogrids are located between the gravel soil backfill layer and the ballast platform and laid layer by layer along with filling of the ballast platform. The timber piles are used as the slide-resistant piles, so that the bearing capacity of the soft soil embankment foundation is improved; the stability and integrity of the levee slope are enhanced by adopting the ballast platform and the geogrid, the instability of the levee slope is prevented, the safety of the levee slope in the construction period and the operation period is guaranteed, and the engineering effect is good.

The utility model belongs to the technical field of river embankments, and particularly relates to a multi-gradient adjustable self-nesting revetment for river ecological environment management, which comprises a building block, an opening is arranged above the building block, a plurality of limiting grooves are arranged on the top surface of the building block, a bump is arranged on the bottom surface of the building block, hoisting holes are arranged on the left side surface and the right side surface of the building block, and a water flowing port is arranged on the bottom surface of the building block. An overflow port is formed in the front side surface of the building block. The structure is simple, proper limiting grooves can be selected for nesting according to different gradients, the problems that traditional masonry bolt connection is time-consuming and labor-consuming, and the risk of slippage and displacement due to external corrosion is avoided, gradient adjustment can be reduced, and the construction cost is saved.

The invention discloses a backwater side seepage drainage and pressure reduction anti-seepage method based on a built sandy soil embankment foundation, and relates to the field of hydraulic engineering embankment seepage control. The technical problems that in existing sandy soil embankment foundation seepage drainage design, due to dynamic change of soil layer permeability, the drainage effect is poor, and slope stability is difficult to guarantee are solved. The method comprises the following steps: establishing a seepage field model through a three-stage hydraulic fracture test, and measuring a permeability coefficient, critical pressure and a failure criterion; the groove is dynamically excavated in three stages, the excavation depth and the slope gradient are corrected in real time according to actually measured data, and the shape of the groove is verified through a model; and finally, laying an inverted filter layer, a drainage body and an anti-scouring layer, wherein the permeability coefficient of the inverted filter layer and the aperture ratio of the drainage body are dynamically adjusted according to actually measured data. According to the method, accurate control over seepage drainage and pressure reduction of the sandy soil embankment foundation is achieved through dynamic coupling of testing, construction and a numerical model, and the method is mainly used for seepage treatment of the backwater side of a built embankment and slope stabilization and reinforcement.

The utility model provides a spliced interlocking building block and relates to the technical field of building materials. The spliced interlocking building block comprises a building block body, a first anchor block is fixed to the middle of one side of the building block body, a first positioning groove is formed in the middle of the first anchor block, a second anchor block is fixed to the middle of the upper end of the building block body, a second positioning groove is formed in the middle of the second anchor block, and a first anchor groove is formed in the middle of the other side of the building block body. A first sliding groove is formed in the middle of the first anchor groove, a first limiting block is slidably connected to the inner wall of the first sliding groove, a second anchor groove is formed in the middle of the lower end of the building block body, and a second sliding groove is formed in the middle of the second anchor groove. According to the splicing type interlocking building block, the two building block bodies are in butt joint operation through manpower, the splicing limiting effect is achieved, the effect of improving the building block splicing positioning effect is achieved, the two building block bodies are in butt joint operation through manpower, the splicing stable effect is achieved, and the effect of improving the building block stability is achieved.

The ecological slope protection structure for water and soil conservation for water conservancy construction comprises soil retaining plates fixedly supported on slopes on the two sides of a river, planting grooves for planting green plants are formed in the soil retaining plates, a water pumping pipe is fixedly connected, and the outer contour of the water pumping pipe is sleeved with a rectangular shell moving in a reciprocating mode; the rectangular shell is fixedly connected with a spray head and a drainage pipe which is in through connection with the spray head, in addition, a salvage mechanism and a liquid pumping mechanism are further arranged on the soil retaining plate and used for cleaning floating objects on the surface of river water and pumping the river water for irrigation, and the salvage mechanism achieves salvage of the floating objects through matched action of a cylindrical roller and a filter plate; according to the ecological slope protection structure, by means of an automatic irrigation system, the utilization efficiency of water resources is improved, the soil retention capacity is enhanced, plant growth is promoted, water and soil loss is effectively prevented, and the ecological slope protection structure can be applied to the field of ecological slope protection especially under the drought condition. The ecological environment is protected and recovered.

The invention provides a method for repairing and maintaining an ecological bank protection structure of a water conservancy project. Comprising the following steps: S1, screening and domesticating functional microorganisms; S2, constructing a vegetation and microorganism synergistic remediation unit; S3, precisely arranging the synergistic remediation unit on site; S4, dynamically monitoring and coordinately regulating and controlling: screening and domesticating the functional microorganisms, constructing the synergistic remediation unit, precisely arranging the synergistic remediation unit on site, and dynamically monitoring and regulating and controlling. A microorganism-vegetation-carrier synergistic effect mechanism is formed, so that the technical problems of structural stability and ecological function separation in traditional revetment restoration are solved; the method has the advantages that the synergistic interaction of structure stability and ecological restoration is realized, the self-repairing capability of a microorganism-vegetation symbiotic system is improved, a multi-dimensional dynamic monitoring regulation and control mechanism is established, and the manual maintenance cost is reduced.

The utility model relates to the technical field of dam side slopes, in particular to a dam side slope safety protection device which comprises an anchor rod used for being fixed to a side slope; the protective net is laid on the side slope; the first connecting mechanism is used for connecting the anchor rod and the protective net and comprises a connecting block fixedly arranged on the anchor rod; the connecting rod is fixedly arranged on the connecting block; the connecting ring is fixedly arranged on the protective net, and the connecting rod is sleeved with the connecting ring; and a first limiting assembly. The device has the effect that the protective net is convenient to maintain and replace.

The invention discloses a water conservancy slope protection construction device, and relates to the technical field of water conservancy slope protection, the water conservancy slope protection construction device comprises a river levee, a bottom supporting mechanism is arranged at the bottom of the river levee through a ground anchor, a top supporting mechanism is arranged at the top of the river levee, and a movable rail frame is mounted at the top of the top supporting mechanism through a hinge mechanism; the bottom of the movable rail frame and the top of the bottom supporting mechanism are movably installed through the same hinge mechanism. By arranging the top supporting mechanism, the bottom supporting mechanism and the movable rail frames, the movable rail frame with the corresponding length can be selected according to the river levee needing to be constructed, and meanwhile the width between the two movable rail frames is adjusted according to the construction requirement; a trowelling plate can be installed behind the trowelling mechanism through a pressing rod, the concrete surface can be troweled conveniently, meanwhile, when trowelling is not needed, a locking column in a control lock stretches out, the pressing rod can be blocked, and therefore the trowelling plate is prevented from being pressed on the concrete surface.

The invention discloses a reservoir side slope protection device, and relates to the technical field of side slope protection, the reservoir side slope protection device comprises a slope protection main body, the upper part of the slope protection main body is rotatably connected with a falling stone baffle plate, and damping mechanisms for damping falling stone impact are symmetrically arranged between the slope protection main body and the falling stone baffle plate, and each damping mechanism comprises a connecting column arranged at the upper part of the slope protection main body; the connecting column is rotatably connected with the slope protection main body, a fixing sleeve is fixedly connected to the connecting column, second connecting rods are rotatably connected to the two sides of the fixing sleeve, a first connecting plate is rotatably connected to the side, away from the fixing sleeve, of each second connecting rod, and a first connecting rod is rotatably connected to the side, away from the corresponding second connecting rod, of each first connecting plate; and when falling rocks fall on the falling rock baffles, the impact force of the falling rocks on the whole slope protection device can be reduced through the damping mechanisms symmetrically arranged between the falling rock baffles and the slope protection main body, the falling rocks are prevented from damaging the slope protection device, and the service life of the slope protection device is prolonged.

The embodiment of the invention provides a full-life-cycle slope protection net system which comprises an active protection net system (1), the active protection net system (1) comprises a plurality of fiber grating sensors (14), and the fiber grating sensors (14) are arranged on a first net body (11). The strain information acquisition module is used for acquiring strain information of a first anchor rod (13) and / or strain information of an anchor buckle according to deformation of the first net body (11) and converting the strain information into a first electric signal or a first optical signal; the fiber grating sensor (14) is electrically connected to an edge computing node near the active protective net system (1); and the edge computing node is electrically connected to the cloud platform through the wireless sensor (3). The local stress and deformation information of the protective net can be accurately obtained in real time, and accurate data support is provided for subsequent early warning and regulation.

The invention discloses a permeable hinged type ecological slope protection structure for sheltering benthonic animals in a canal. The permeable hinged type ecological slope protection structure is formed by distributing a plurality of slope protection blocks on a bank slope in an array mode. The slope protection block body is of an integrated structure and comprises an upper halfpace section and a lower rectangular enclosure frame section. An inner cavity of the slope protection block body is formed by a space enclosed by the lower rectangular enclosure frame section and a halfpace-shaped cavity in the upper halfpace section; lateral channels communicating with the inner cavity are formed in the left side and the right side of the slope protection block body, and the lateral channels on the two sides directly face each other. Through holes communicated with the inner cavity are formed in the top surface, the front side surface and the rear side surface of the upper halfpace section; the front side and the rear side of the lower rectangular enclosure frame section are respectively provided with a linkage hinge bayonet and a linkage hinge clamping block which are matched with each other; an induction adhesion layer is arranged on the top surface of the upper halfpace section; in the shoreline direction, the lateral channels of the adjacent slope protection block bodies are aligned and communicated; the adjacent slope protection blocks are clamped and matched in the direction perpendicular to the shoreline. According to the method, a relatively stable near-bottom shielding and slow-flow sheltering space can be formed, and habitat communication and attachment induction interface construction are considered.

The invention belongs to the technical field of dam construction machinery, particularly relates to a remote control type crawler equipment traction slope rolling construction method, and aims to solve the problems that in the prior art, the rolling direction cannot be guaranteed when slope rolling equipment works, the slope rolling equipment is prone to deviation, and steering control over a rolling machine is not easy. The method comprises the following steps of: investigating and checking terrain, geology, structure conditions and the like of a construction site, preparing construction materials and equipment, performing field survey and paying off on the construction site, performing soil loosening by using a soil loosening machine after the slope surface is leveled for the first time, scattering filler, and manually repairing a position with relatively large fluctuation, and the amplitudes of the bulges and the recesses are controlled within + 5CM to-8CM. After one slope of a dam body is pressed, the road rolling equipment is dragged to the bearing platform, and after the whole road rolling equipment moves forwards by a certain distance, the road rolling equipment continues to be put down so that staggered rolling can be carried out.

The invention discloses an ecological brick and a preparation method thereof, and belongs to the technical field of ecological building materials. The ecological brick adopts a layered composite structure design, and comprises an outer anti-scouring protective layer, a middle buffer energy-absorbing layer and an inner ecological functional layer which are sequentially arranged from outside to inside, and diversion trenches with the width of 2mm and the depth of 1.5 mm are formed among micro-bulges to form latticed distribution. The preparation method comprises the four key steps of material pretreatment, layered pouring, bionic forming and intelligent maintenance. In the material pretreatment stage, Yellow River fine sand is screened and cleaned, straw fibers are soaked and modified through a sodium hydroxide solution, and basalt fibers are subjected to surface treatment through a silane coupling agent. And the layered pouring adopts a three-cavity mold system to realize accurate layer thickness control. Through the innovative structural design and preparation process, the anti-scouring performance and ecological function of the ecological brick are remarkably improved, compared with a traditional slope protection brick, the scouring loss is reduced by 42%, the plant survival rate reaches 89%, and an advanced technical solution is provided for water and soil conservation and ecological restoration engineering.

A slope protection layer is formed by mutually connecting a plurality of slope protection building blocks, the slope surface is decomposed into a plurality of small step planes, the slope protection surface achieves zero soil loss, the water and soil conservation effect is remarkable, and the greening effect is lasting. A plurality of steps are laid in the inclined direction of the slope body, the adjacent steps are staggered, so that the whole slope surface is in a staggered step shape, when flowing downwards from the slope surface, water flow gathers at the splicing position of the slope protection building blocks, a turbulent flow energy dissipation area is formed, and water flow energy is remarkably reduced; different interlocking structures are arranged between two adjacent slope protection building blocks of each step and between the third slope protection building block of the adjacent step, so that the overall stability of the slope protection structure is greatly improved, and the slope protection building blocks penetrate into the slope surface by arranging zigzag structures on the bottom surfaces of the slope protection building blocks, so that the slope protection structure is more stable. And the overall stability of the slope protection structure is further improved.

The invention discloses a permeable laminated grid ecological bank protection material suitable for improvement of a dredged soil green material and a preparation method of the permeable laminated grid ecological bank protection material. The preparation method comprises the following steps that S1, a dredged soil green improver and dredged soil are evenly mixed in a dry mode, and homogeneous slurry is formed after stirring; s2, injecting the homogenized slurry into a mold, and pressing the homogenized slurry into hollow laminated grid units through a hydraulic forming machine; and S3, the permeable laminated grid units are naturally cured, and the permeable laminated grid ecological bank protection material suitable for improvement of the dredged soil green materials is formed. According to the invention, the dredged soil is taken as a matrix, and the mechanical property and ecological compatibility of the dredged soil are remarkably improved by adding the composite modifier composed of 11 components such as the steel slag micro powder, the red mud activator, the calcium sulphoaluminate expanding agent and the active magnesium oxide and combining the design of the three-layer permeable laminated grid structure.

The invention discloses a drainage and prevention combined type embankment structure and a construction method, and belongs to the technical field of water conservancy projects. The embankment structure comprises a base and a protection structure arranged on the base in a coherent mode, the protection structure is composed of main pipe piles and arc-shaped sheet piles which are arranged at intervals, and an embankment is divided into a backwater side and a waterside. Side edge and top consolidation bodies are formed at the bottoms of the main pipe piles through grouting of the auxiliary pipe piles and the miniature pipes so as to enhance bearing; the arc-shaped sheet piles are tightly connected with the main pipe piles through the connecting end plates, the cap beams, the locking opening pipes and the connecting bolts, and a sealing anti-seepage system is formed on the backwater side. Meanwhile, a water collecting and draining system is arranged in the main pipe pile, and water on the water facing side is allowed to be drained orderly through the water collecting holes, the graded gravel materials, the water collecting pipe and the drainage blind pipe. Through combination of'prevention 'and'drainage', the anti-seepage safety of the backwater side is ensured, seepage water is timely dredged to eliminate seepage pressure, damage to the structure caused by water pressure accumulation is avoided, and unification of stability and safety of the embankment structure is achieved.

The utility model relates to the technical field of water conservancy projects, and discloses a slope fixing device for water conservancy projects, which comprises a slope fixing plate, a slope fixing plate and a slope fixing plate, the adjusting mechanism is arranged on the upper surface of the slope fixing plate; the sliding mechanism is arranged on the upper surface of the slope fixing plate; the adjusting mechanism comprises a fixed sliding rail, a fixed sliding rail and a movable sliding rail, the limiting plate is fixedly connected to one end of the fixed sliding rail; and the sliding pore plate is arranged on the upper surface of the slope fixing plate. By pulling a handle upwards, the handle drives a sliding rod to slide on the inner wall of a fixed sliding hole plate, meanwhile, the sliding rod drives a limiting block to slide out of a limiting groove rod groove through a connecting plate, so that a spring is extruded, the fixed sliding hole plate can slide, an inserting rod is driven to slide, and when the inserting rod slides to a proper position, the handle is released, and the spring rebounds; and the limiting block is driven to slide into the limiting groove rod so as to adapt to different environments to complete adjustment, and the effect of adjusting the position of the insertion rod is achieved.

The invention discloses a high-toughness wetland ecological grid structure and a restoration system thereof. The grid structure comprises a plurality of rows of slope fixing grids which extend longitudinally and are arranged at intervals, and the slope fixing grids in the adjacent rows are arranged in a staggered mode; interval zones between the adjacent slope fixing grids form planting base bands which are communicated with each other. The slope fixing grids and the planting base band are made of artificial substrates of a multi-level pore structure, and a plurality of longitudinally-extending artificial waterways are arranged in the planting base band. The staggered ecological grid structure is matched with the wave-shaped artificial waterway to enhance the overall stability and anti-interference capability of the wetland, and the artificial matrix with the multi-level pore structure improves the water retention, filtration and adsorption effects and enhances the hydraulic connectivity of the matrix. According to the remediation system, a grid structure is divided into four planting belts, the remediation system of an arbor-shrub-grass-hygrophilous four-layer three-dimensional community is formed, a functional microorganism-plant combined remediation mechanism is achieved in cooperation with microbial flora, and the remediation adjusting capacity and stability of the wetland are improved.