847results about "Marine site engineering" patented technology

The invention relates to the technical field of reservoir bedrock anti-seepage grouting, and discloses a reservoir bedrock anti-seepage grouting method which comprises the following steps: acquiring fracture data through geological exploration, and constructing a reservoir bedrock fracture distribution model; simulating a flow path and permeability characteristics of the slurry in the fracture based on the fracture model; the grouting pressure and flow are determined through an optimization algorithm, and a grouting scheme is formulated; screening grouting materials according to fracture characteristics, and analyzing stress-strain and permeability of the grouting materials; a construction process is formulated, the grouting state is monitored in real time, and parameters are dynamically adjusted; and after grouting, carrying out permeation and pressure test to evaluate whether the curing effect reaches the standard or not. Based on the three-dimensional fracture structure modeling and flow field simulation technology, high-precision recognition and dynamic evolution tracking of the fracture permeation path in the complex rock mass of the reservoir bank are achieved, so that grouting hole layout is more accurate, the slurry flow direction is more controllable, and the method is different from a point-selecting grouting mode of a traditional empirical method.

The invention belongs to the technical field of ecological restoration and wetland engineering, and discloses an ecological corridor-based abandoned fishpond ecological restoration method, which comprises the following steps: S1, land forest restoration: planting saline-alkaline tolerant vegetation around an abandoned fishpond and in a land and abandoned fishpond transition area in a layered manner; s2, mangrove forest wetland construction: performing microtopography modification to adjust the bottom mud elevation, and planting mangrove forest plants in a layered manner; s3, ecological corridor construction: constructing an ecological corridor on one side of the abandoned fishpond and the land, and constructing an ecological corridor on one side of the abandoned fishpond and the ocean; s4, ecological monitoring and maintenance: carrying out hydrological, tidal and biological detection regularly; the three-dimensional ecological corridor system of'land forest-mangrove forest wetland-ocean 'is constructed, and the abandoned fish pond is transformed into the mangrove forest wetland, so that not only are biodiversity improvement and ecosystem connectivity realized, but also stable migration and inhabitation space can be provided for terrestrial and aquatic organisms.

The invention relates to a sandy coast back shore ecological restoration multi-objective optimization method based on an NSGA-II algorithm, and the method comprises the following steps: S1, selecting a damaged sandy coast, carrying out the background investigation, and calculating a wave climbing value; s2, determining a vegetation arrangement range of the damaged sandy coast; s3, beach shoulder sand supplement of beach shoulder width is conducted on different areas of the damaged sandy coast, and sand dune sand supplement of an artificial sand dune is conducted; s4, calculating the wind erosion prevention efficiency and the wave erosion prevention efficiency of the dominant vegetation; s5, constructing a sandy coast back shore ecological restoration multi-objective optimization function and constraint conditions; s6, solving the multi-objective optimization function based on an NSGA-II algorithm to obtain an optimal vegetation configuration scheme set; s7, based on actual conditions, selecting an optimal vegetation configuration scheme for planting; and S8, detecting vegetation data after planting, and starting a reseeding program when the survival rate of vegetation is lower than a threshold value. Compared with the prior art, the method has the advantages that the fitness of the multi-power environment is improved, and then the windproof and wave-resistant effects are optimized.

The invention relates to the field of civil engineering waterproof materials, in particular to a nano bentonite-polymer composite material with high salt tolerance and a preparation method thereof, and the nano bentonite-polymer composite material is especially suitable for a sodium-based bentonite waterproof blanket in a saline soil area or a marine environment, and the preparation method comprises the following steps: (1) preparing nano bentonite lamellar colloidal dispersion liquid; (2) introducing and mixing an electrostatic screening agent and a polymerizable monomer; (3) carrying out in-situ free radical polymerization reaction; and (4) post-treatment and finished product preparation. By constructing a three-dimensional interpenetrating hierarchical structure composed of a covalent grafted polymer network, a physically anchored electrostatic screening agent and a stripped bentonite nanosheet layer, effective protection of a bentonite core anti-seepage unit is realized, so that the adaptability and long-term stability of the material under a complex water quality condition are remarkably improved.

The invention relates to an underwater stirrer and an underwater glue injection system. The underwater stirrer comprises a driving motor, a stirring barrel, a transmission shaft, blades and a bearing seat, the stirring barrel comprises a barrel body and a cover body used for sealing the barrel body, an avoiding hole is formed in the cover body, one end of the transmission shaft is connected with an output shaft of the driving motor, the other end of the transmission shaft penetrates through the avoiding hole and extends into the barrel body, and a mechanical seal is arranged between the transmission shaft and the cover body. The paddle is connected with the transmission shaft and is positioned in the stirring barrel, the bearing seat is sleeved outside the transmission shaft, one end of the bearing seat is hermetically connected with the cover body, a first sealing element is arranged between the bearing seat and the cover body, the other end of the bearing seat is hermetically connected with the driving motor, and a second sealing element is arranged between the bearing seat and the driving motor. The underwater stirrer is more suitable for underwater construction environments.

The invention discloses a cascade reservoir flood control water level combined application scheduling method and scheduling system, and relates to the technical field of cascade reservoir scheduling, and the method comprises the following steps: dividing into a plurality of sub-regions according to an administrative region, determining a sub-reservoir corresponding to each sub-region, and collecting the rainfall and historical flood discharge data; analyzing the water storage capacity of each sub-region at the moment corresponding to the historical data to form a training data set; constructing a flood season flood discharge prediction model, and obtaining the target flood discharge flowing into the sub-reservoir by using the prediction model; analyzing the water level change in the flood season according to the target flood discharge amount, and judging whether scheduling is needed; and if scheduling is needed, determining a drainage flow combination of each sub-reservoir, setting a constraint condition, and performing optimization through a multi-target genetic algorithm to obtain an optimal drainage flow scheme meeting constraints. According to the scheme, the scientificity, the accuracy and the intelligent level of combined dispatching of the cascade reservoirs are remarkably improved.

The invention relates to the technical field of pile foundation construction, in particular to a long spiral secant pile construction method under water conservancy anti-seepage complex geological conditions, and the construction method comprises the steps that a long spiral pile driver is provided with a first power head and a second power head, a sleeve is pressed downwards through the second power head, and then the first power head is used for driving a drill rod to drill; the sleeve and the drill rod drill down synchronously until the drill bit drills to the elevation of the bed rock surface to form a pile hole; the sleeve is left in the pile hole, the rotary drilling rig is used for drilling the bed rock, a drill rod of the long spiral pile driver is put down to the bottom of the pile hole, concrete is pumped into the pile hole, and when the concrete is poured to the bed rock surface, the drill rod and the sleeve are lifted while the concrete is pumped into the pile hole till pressure pouring is completed. In a complex stratum with a huge thick loose high-permeability sandy gravel covering layer and ultrahigh-strength hard bed rock coexisting, high-precision stable hole forming and collapse prevention are achieved at the same time, hard rock is reliably and accurately drilled to reach the designed depth, and it is ensured that concrete secant piles are tightly engaged to form a continuous and effective diaphragm wall.

The invention discloses a quick blocking system for a dike breach, which belongs to the field of hydraulic engineering equipment and comprises a pushing support fixed on a dike through a positioning anchor rod and a fixed arm slidably arranged along the length direction of the dike, and the pushing support is connected with the fixed arm through hydraulic pushing translation equipment. One end of each fixed arm extends to the position above the dike breach, the two fixed arms are parallel to each other, a longitudinal supporting arm is arranged at the end, away from the pushing support, of each fixed arm, the longitudinal supporting arms are arranged between the two fixed arms, and positioning guide seats are arranged on the longitudinal supporting arms and the fixed arms correspondingly; the positioning guide seats are used for positioning the blocking anchor rods, the blocking anchor rods are downwards anchored into a foundation of the embankment breach along the positioning guide seats, and the breach is blocked by throwing geotechnical cloth sandbags or large stones or steel mesh gabions into an area formed by the blocking anchor rods. The problem that when a blocking medium is directly fed into the breach, the blocking medium is not stable under the impact of water flow and is directly washed away is solved.

The invention relates to the technical field of underwater operation equipment, solves the problems that existing dam underwater crack repairing depends on divers or complex equipment, the automation degree is low, the construction period is long, the comprehensive cost is high and the adaptability is poor, and particularly relates to concrete dam underwater crack repairing and leaking stoppage equipment which comprises a robot for underwater cruise, and the robot comprises a machine body; the cruise vision module comprises a foresight navigation lens group, a look-around lens group, a bottom wide-angle lens, an active illumination system, an obstacle avoidance sonar system and a topographic mapping sonar; the crack detection module comprises a crack scanning ultrasonic detector, a high-resolution strip-shaped scanning lens group, a laser ray scanner, a multispectral imager, a laser distance measuring sensor, a water flow sensor and an attitude sensor, the crack repairing module comprises two groups of mechanical arms for punching and grouting, and the central controller controls the robot to execute. Crack filling, structure bonding recovery and long-acting sealing are achieved, and meanwhile the construction difficulty and the comprehensive cost are reduced.

An artificial reef structure including thin tensile members as part of the structure. These tensile members readily accumulate marine life to create a more organic structure. The reef structure can accommodate a wide variety of ocean sensing and communication systems. Embedded lighting and electronic elements can be used to attract and monitor marine life.

The invention provides an anti-seepage structure, a pumped storage power station anti-seepage bottom plate and a construction method, and relates to the technical field of anti-seepage engineering.The structure comprises a joint core bottom plate, an auxiliary bottom plate and a connecting piece, and the periphery of the bottom of the joint core bottom plate extends in the horizontal direction to form protrusions; concave parts matched with the protrusions are arranged on the periphery of the bottom of the auxiliary bottom plate, the joint core bottom plate and the auxiliary bottom plate are connected through connecting pieces, and the protrusions are arranged in the concave parts. The construction efficiency can be effectively improved.

The invention discloses a device and a method for actively repairing microcracks on the surface of an ice-coated water work concrete structure, belongs to the technical field of intelligent repairing of concrete, and comprises a semi-embedded distributed optical fiber sensing system and a device for repairing the microcracks on the surface of the concrete. Wherein the semi-embedded distributed optical fiber sensing system is arranged on the surface of a hydraulic concrete structure to complete positioning of concrete microcracks; the concrete surface micro-crack repairing device can melt surface ice in a short time and send a repairing material to the concrete surface micro-crack position, and accurate repairing of the concrete surface micro-crack is achieved. By combining a distributed optical fiber sensing technology and a micro-crack repairing device, the problem that micro-cracks on the surface of an ice coated concrete structure are difficult to find and repair in time can be solved.

The utility model discloses a pressure hose expansion sealing waterproof and flood control assembly which comprises a base, a guardrail, waterproof cloth and a pressure hose. The base is pre-embedded under the ground, a semicircular clamping groove or a large semicircular clamping groove is formed in the base, and an opening of the semicircular clamping groove or the large semicircular clamping groove is exposed out of the ground; the guardrail is detachably or fixedly installed on the rear side of the upstream face of the base and extends upwards. The waterproof cloth is laid before flood comes, the bottom of the waterproof cloth is fixed in the semicircular clamping groove or the large semicircular clamping groove of the base, and the other part of the waterproof cloth is laid and fixed on the guardrail; the pressure hose is laid in the semicircular clamping groove or the large semicircular clamping groove of the base before flood comes, the pressure hose expands after a medium is injected into the pressure hose, and the bottom of the waterproof cloth is tightly fixed in the semicircular clamping groove or the large semicircular clamping groove of the base. According to the utility model, the pressure hose expands after being filled with a medium, the waterproof cloth is fixed on the base, and the function of effectively blocking flowing water leakage is achieved.

The invention belongs to the field of water conservancy projects, and particularly relates to a concrete dam body anti-icing air blowing structure which comprises a disc-shaped spiral air pipe, a plurality of spokes, an internal thread air cap, a turbulent flow component, a floating raft component and a reciprocating pneumatic device.The concrete dam body anti-icing air blowing structure adopts three core designs of disc-shaped spiral air pipe airflow optimization, multi-stage turbulent flow linkage and floating raft self-adaptive adjustment; a bubble curtain generated by the disc-shaped spiral air pipe bursts on the surface layer of the water body; meanwhile, the spoiler swings to disperse the water to multiple sides, and surface water flow movement is accelerated; vertical vortexes are generated in combination with movement of the water rolling wheels to promote heat exchange of upper and lower water layers and destroy an ice layer crystallization environment; the inhibition effect on ice layer crystallization is improved through multi-directional disturbance and heat exchange of the horizontal layer and the vertical layer; the problems of uneven airflow, insufficient disturbance, poor adaptability and the like in a traditional anti-icing technology are solved, and the efficient, energy-saving and long-service-life dam body anti-icing effect is achieved.

An artificial reef module for marine ecosystem restoration comprises a base having a lattice configuration and one or more poles projecting upwardly from the base and configured to support one or more artificial inhabitation units e.g., made by 3D printing, extrusion, pultrusion, or mold specific clay. The module can be configured with one or more of the artificial inhabitation units mounted on the poles, where each inhabitation unit may comprise a plurality of holes formed therein.

The utility model relates to a nondestructive testing device for a concrete diaphragm wall of a water conservancy project. Comprising a geological radar and further comprises a mounting frame and a sweeping assembly, the geological radar is fixedly connected to the mounting frame, the sweeping assembly is fixedly connected to the mounting frame, the sweeping assembly is located on the lower side of the geological radar, and the sweeping assembly is used for sweeping impurities on the concrete diaphragm wall. When an operator moves the geological radar and detects the wall surface of the concrete anti-seepage wall, the cleaning assembly cleans impurities on the concrete anti-seepage wall, the possibility that the impurities such as soil and moss adhere to the antenna of the geological radar can be reduced, the possibility that interference signals or artifacts appear in radar images can be reduced, and the detection accuracy of the concrete anti-seepage wall is improved. And the possibility that the accuracy and the reliability of the detection result are influenced can be reduced.

The invention discloses a water channel flooding leakage detection device and a construction repair method, and belongs to the technical field of leakage repair construction. Comprising a detection leaking stoppage vehicle, the detection leaking stoppage vehicle is connected with a charging barrel and a feeding pipe, and the charging barrel is communicated with the feeding pipe; a grouting head is further included, a connecting cylinder is fixedly connected to the top of the grouting head, a first air bag is connected to the connecting cylinder, and a second air bag is fixedly connected to the grouting head; the material conveying pipe is fixedly connected into the connecting cylinder, and the material conveying pipe communicates with the grouting head; the shooting device is fixedly connected to the grouting head; the exhaust pipe is fixedly connected to the grouting head; according to the device, the humidity in the drill hole is detected in a layered manner, and the specific humidity condition in the drill hole can be analyzed and judged by comparing and analyzing the humidity signal, so that a worker can conveniently infiltrate repairing agents with different concentrations, and the leakage rate of the drill hole is improved by infiltrating the repairing agents with different concentrations into the drill holes at different leakage points. The plugging effect of the repairing agent on the leakage position in the drill hole can be guaranteed, and the cost is effectively controlled.

The invention relates to the technical field of civil engineering materials, in particular to a cement-based composite coiled material for emergency rescue and a rapid construction method.The cement-based composite coiled material for emergency rescue comprises a stereoscopic three-dimensional structure fabric and hydraulic cement-based filler, the stereoscopic three-dimensional structure fabric is filled with the hydraulic cement-based filler, and the hydraulic cement-based filler is arranged in the stereoscopic three-dimensional structure fabric. One side of the bottom of the three-dimensional structure fabric further comprises a waterproof wear-resistant coating; the hydraulic cement-based filler is prepared from the following components in parts by weight: 30 to 45 parts of high belite sulphoaluminate cement, 10 to 20 parts of ordinary Portland cement, 10 to 15 parts of fly ash, 5 to 8 parts of alpha-semi-hydrated gypsum, 3 to 5 parts of an expanding agent, 0.5 to 1.5 parts of a polycarboxylic acid type water reducing agent, 25 to 35 parts of silica sand and 0.1 to 0.8 part of a thickening time control agent. The prepared cement-based composite coiled material for emergency rescue has good tensile property, and the prepared cement-based composite coiled material meets the one-day compressive strength gt; the 28-day compressive strength is gt; the pressure is 65 MPa; the one-day tensile strength is gt; 3.5 MPa, 28-day tensile strength gt; and the performance index requirement of 5.5 MPa is met.

The invention relates to the technical field of geotechnical engineering reinforcement, in particular to an intelligent grouting system based on MICP and a construction method. The grouting system comprises a stratum pre-analysis module, a dynamic grouting execution module and a real-time monitoring and feedback module. The stratum pre-analysis module performs three-dimensional permeability coefficient surveying and mapping and divides three types of treatment areas; the dynamic grouting execution module comprises segmented grouting pipes driven by an electrically-arranged sliding rail, and the segmented grouting pipes are lowered to designated coordinates through a nozzle at the interval of 5 m; and the real-time monitoring and feedback module integrates a pH sensor, an online monitoring module of a conductivity meter and a flowmeter linked with the pressure pump and is used for forming a closed-loop control loop of sensing detection, intelligent calculation and adjustment execution. The calcium ion concentration and the soil layer permeability are monitored in real time, and the grouting pressure and mode are automatically adjusted, so that the reinforcement uniformity is improved, the construction efficiency is improved, and the pipeline blockage risk is reduced.

The invention belongs to the field of port engineering construction, and particularly relates to a rapid deployment construction method for universal recyclable caisson reinforcing steel bars in prefabricated caisson reinforcing steel bar structure construction. On the basis of a modularized disc buckle support system push-pull unit, reinforcing steel bars of the outer wall and the inner partition wall of the caisson are integrally bound by combining an assembly type reinforcing steel bar binding frame and an assembly type reinforcing steel bar hoisting frame and presetting a reinforcing steel bar binding mould, and the distance between the reinforcing steel bars and a reinforcing steel bar protection layer are controlled within the controlled range; after the binding frame is separated, force is evenly transmitted through the lifting frame, and the whole steel reinforcement framework is lifted away from the binding clamping fixture through a crane and installed at the preset position. According to the method, the requirement for high-altitude operation is remarkably reduced, the safety of a construction site is improved, meanwhile, accurate arrangement of the steel bars and the thickness of a protective layer are ensured through accurate pre-binding control, and therefore the overall quality and durability of the structure are improved.

To solve the problem in which, even though an ideal thin layer sand cover construction method is to suppress generation of pollution and inroads of sand cover into a water bottom ground as much as possible, to maintain the planned shape and state of the thin layer sand cover, and to construct the thin layer sand cover in a short time, however, a thin layer sand cover construction method at present is at the stage of intending the suppression of generation of the pollution and spreading out the sand uniformly.SOLUTION: In the solution of this invention, formation of a thin layer sand cover is performed which secures the constitution of sand cover, a sand cover thickness and a density state that are plan requirements in a sand cover unloading bucket beforehand, on the ship of a sand cover work ship. Then, the bucket loading the formation sand cover is lowered to the water bottom and is landed calmly, the bucket is raised to a height of the sand cover thickness and an automatic opening / closing type bottom slab is opened at the same time, and the formation sand cover is unloaded calmly. In this method, the thin layer sand cover is constructed in a short time without a substantial underwater fall of the formation sand cover, while maintaining the shape and state of the sand cover and also suppressing the generation of pollution.SELECTED DRAWING: Figure 9

A synthetic turf cover system for covering various types of sloping ground includes synthetic grass blades tufted into and through a composite backing, with the composite backing including a non-woven synthetic textile lower layer and a woven textile upper layer positioned above and adjacent the non-woven synthetic textile lower layer. The non-woven synthetic textile lower layer provides good interface shear strength with the ground or a ground-covering membrane, while the woven textile upper lawyer provides good strength. The synthetic turf cover system provides good cushioning to help protect the geomembrane against damage from vehicles driving on the synthetic turf cover system.

The present disclosure relates to shaped cementitious compositions that comprise a substrate for aquatic flora and / or fauna attachment; methods for providing a substrate for aquatic flora and / or fauna attachment comprising depositing a shaped cementitious composition into a body of water; and methods for making a shaped cementitious composition. The shaped cementitious composition is formed from a pourable cementitious mixture comprising: (a) a pozzolan comprising a natural pozzolan and / or a manmade pozzolan; (b) MgO and / or Mg(OH)2; (c) an aqueous solution comprising one or more accelerants; and (d) at least one aggregate. In some cases, the MgO and / or Mg(OH)2 of (b) is included in the aqueous solution of (c). And, in various cases, the manmade pozzolan comprises a slag.

The invention discloses an underwater leakage plugging device and an underwater plugging process, and belongs to the technical field of dam leakage plugging. Comprising two groups of material conveying pipes connected to a diving bell, and further comprises a connecting seat fixedly connected with a grouting pipe, and the connecting seat is connected with the two groups of material conveying pipes; the grouting adapter is fixedly connected to the grouting pipe; the hole blocking plate is detachably connected to the grouting adapter; a baffle is connected to the hole blocking plate in a sliding mode. Through the linkage design of the material storage cavity, the sliding plug and the limiting air bag, when the pressure in the grouting hole is increased due to slurry injection, slurry can be squeezed into the material storage cavity and pushes the sliding plug to slide, and gas in the material storage cavity is inflated into the limiting air bag through the gas supply cavity; after being inflated, the limiting air bag bulges and is squeezed into a small concave part of the inner side wall of the grouting hole to form a multi-point anchoring structure, so that the friction force and the meshing force between the hole plugging plate and the hole wall are greatly improved, the hole plugging plate is effectively prevented from being pushed out of the grouting hole, and the grouting process is ensured not to be interrupted.

The invention discloses a corrosion-resistant water-stop belt and a preparation method thereof, and relates to the technical field of high-molecular compound composition water-stop belts. The corrosion-resistant water-stop belt is prepared from the following raw materials in parts by mass: 50-70 parts of ethylene propylene diene monomer, 20-40 parts of chloroprene rubber, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 1-2 parts of an anti-aging agent, 5-15 parts of paraffin oil, 20-40 parts of white carbon black, 30-50 parts of calcium carbonate, 1.5-3 parts of sulfur and 0.5-1.5 parts of an accelerant. The accelerant accurately regulates and controls the sulfur cross-linking process to form a high-density and uniform sulfur bond network structure, so that the material can still maintain excellent mechanical properties such as tensile strength and elongation at break in a corrosion environment, and sealing failure caused by swelling or aging is avoided.

The invention provides a special geomembrane for a pumped storage power station and a preparation method of the special geomembrane, and relates to the technical field of geomembrane materials. The special geomembrane for the pumped storage power station comprises an outer layer, a middle layer and an inner layer which are sequentially connected, the outer layer is prepared from the following raw materials: 55 to 65 percent of MDPE, 33 to 40 percent of HDPE, 1 to 5 percent of antioxidant master batch and 1 to 7 percent of double-resistant color master batch; the middle layer is prepared from the following raw materials: 15 to 25 percent of HDPE (High-Density Polyethylene), 35 to 45 percent of LLDPE (Linear Low Density Polyethylene), 25 to 35 percent of POE (Polyolefin Elastomer), 1 to 5 percent of antioxidant master batch and 3 to 7 percent of double-resistant color master batch; the inner layer is prepared from the following raw materials: 35 to 45 percent of MDPE, 40 to 50 percent of LLDPE, 8 to 12 percent of POE, 1 to 5 percent of antioxidant master batch and 3 to 7 percent of double-resistant color master batch. The strength, the fatigue resistance and the aging resistance are balanced on the whole, so that the long-term operation requirement of the pumped storage power station is met.

To provide a slope leveling member capable of improving the efficiency of slope leveling work.SOLUTION: A slope leveling member 10 is attached to a lower end of a leveling weight 4 for leveling a plane of an underwater foundation rubble mound 6. A lower end of the slope leveling member 10 is provided with a plurality of lower end faces 11B to 15B formed in a stepped pattern according to an inclination angle of a slope 6B of the foundation rubble mound 6. The normal direction of the plurality of lower end faces 11B to 15B is the same as a falling direction A of the leveling weight 4.SELECTED DRAWING: Figure 1

The application of "a unit type tidal wetland restoration method based on a target" belongs to the technical field of wetland ecosystem restoration methods. The unit type tidal wetland restoration method based on a target comprises the following steps: (1) determining a target; (2) constructing an ecological unit on the tidal wetland to be restored through microtopographic modification; (3) applying biochar materials and salt-resistant ecological materials in the ecological unit; and (4) configuring waterfront plants in the ecological unit. The restoration method utilizes natural tidal fluctuation to adjust the water and salt conditions of the ecological unit (salt reduction of more than 80%) and to maintain the target water level (0-2 m) as needed, optimizes the soil microbial community structure (soil bacterial richness is increased by more than 200%), improves the plant germination rate and survival rate in the process of tidal restoration (the germination rate is more than 90%, and the survival rate is increased to more than 62%), and enriches the plant configuration varieties in the riparian zone (≥12).

A method for fabricating a retaining wall configured to extend into a ground comprising the steps of providing at least a first longitudinal support having a receiving part and extending along a first longitudinal direction; placing the first longitudinal support transversely to the ground; providing at least a first module comprising a longitudinal element and a first wing; positioning the first module parallel to the first longitudinal support; connecting the first module to the first longitudinal support, so that the first wing of the first module is slidably engaged with the receiving part of the first longitudinal support; then moving said first module in translation along the first longitudinal direction, and sinking said first module into the ground and then the first longitudinal support into the ground.