145 results about "Sea dike" patented technology

The invention relates to the technical field of resource management, in particular to a seawall ecological protection-oriented vegetation water demand prediction method and system, and the method comprises the steps: collecting the environment monitoring data of a seawall region; establishing a salinity stress factor model based on the soil data, calculating a comprehensive salinity stress coefficient of the monitoring point, and performing multi-factor dynamic correction on the vegetation water demand to obtain a vegetation basic water demand; establishing a multi-dimensional time sequence model of a tidal cycle and a soil moisture supplement relationship considering geologic structure differences, and obtaining resource scheduling weights under different tidal stages and environmental conditions; according to the vegetation data, the underground data and the environmental data of the different seawall regions, based on a multi-region collaborative water resource allocation network, obtaining a deployment optimization scheme based on regional characteristic parameters; and generating a vegetation water demand prediction result and a graded resource scheduling scheme by integrating the vegetation basic water demand, the resource scheduling weight and the allocation optimization scheme, and performing irrigation.

The invention relates to an ecological landscape type disaster reduction seawall, the section form of the seawall is a gentle slope into-sea multi-stage composite type, and the seawall structurally comprises a seawall foot on the seaside, a first-stage planting platform, a gentle slope, a second-stage planting platform, a waterside platform, a wave wall and a road which are sequentially arranged from sea to land; on the basis of ensuring safety, the seawall is subjected to ecological landscape design, so that the seawall can play roles in intercepting silt and purifying water; the effects of weakening wave energy and reducing marine disaster threats can be achieved; and meanwhile, the hydrophilicity of the seawall can be improved, and a leisure activity space is provided for people. The invention further relates to a design method of the ecological landscape type disaster reduction seawall and a method for determining the crest elevation of the ecological landscape type disaster reduction seawall. The section form of the seawall can be determined according to the wave height and the height difference between the sea level and the road surface, the crest elevation of the seawall can be effectively reduced, the engineering cost is reduced, and the seawall ecological function is increased.

The invention relates to the field of seawalls, in particular to a marine ecological restoration seawall based on a sand beach and a construction method thereof. The seawall comprises three defensive lines, the first defensive line serves as a wave dissipation platform by laying an artificial sand beach, and an original wave wall and a riprap protection bottom are transformed to construct a first-stage wave wall; curbs are heightened and transformed into secondary wave walls by the middle road defense line, and a levee top road is laid to serve as a wave dissipation platform; a flower bed is transformed on a rear defense line, a low retaining wall is a three-stage wave wall, a drainage system is arranged, and residents are protected by combining buildings behind the road and flood prevention measures. The three-dimensional defense line can achieve wave dissipation and damp blocking, and the wave overtopping amount is reduced. The method aims at the shoreline with the requirement for the dike crest elevation and insufficient moisture-proof capacity in marine ecological restoration, and is particularly suitable for constructing a mature urban dike. The damp-proof flood-proof seawall aims at keeping the original appearance of the seawall as much as possible, reducing damage to existing roads and environments, improving the damp-proof capacity, promoting organic fusion of the seawall and surrounding characteristics and building the damp-proof flood-proof seawall for marine ecological restoration.

According to the seawall ecological slope protection structure and the construction method thereof, the seawall ecological slope protection structure comprises a seawall body, the seawall body is filled with mud filling pipe bags, a wave wall is arranged at the top of the seawall body, a bagged gravel layer is laid on the slope surface of the seawall body, a polyurethane gravel protection slope is laid on the bagged gravel layer, and a wave dissipation platform is arranged on the slope surface; according to the seawall, the structural porosity of the seawall can be effectively improved, energy transportation and material exchange between the ocean and the land can be continued, meanwhile, the wave dissipation effect is good, and the structure is resistant to corrosion; the method is simple in form and high in universality, the construction step of cast-in-place concrete of a traditional seawall concrete slope protection structure is basically avoided, the site construction period and maintenance period are greatly shortened, the porosity of the polyurethane gravel slope protection is high, plant growth is facilitated, and the ecological property of the seawall structure is improved; and a good ecological effect can be created.

The invention belongs to the technical field of hydraulic engineering measurement, and discloses a seawall measurement method and system based on multi-source data fusion, and the method comprises the steps: collecting geological data and hydrological data through a data collection module; the route planning module formulates a route; the overwater data acquisition equipment and the underwater data acquisition equipment are used for monitoring; the auxiliary equipment provides a high-precision positioning reference; the meteorological data module obtains meteorological data; the data processing module processes the data; the three-dimensional modeling module carries out point cloud registration and DEM model construction; the comprehensive analysis module performs comprehensive evaluation and predicts potential problems and risks; when an abnormal condition or a potential risk is monitored, the early warning module gives an alarm. Multi-source data acquisition equipment such as unmanned aerial vehicle aerial survey, a laser radar, a multi-beam depth finder, a side-scan sonar, a shallow profiler and a micro-motion exploration instrument are integrated, seawall overwater and underwater full-dimensional data acquisition, processing, modeling and volume calculation are realized, and high precision and reliability of measurement results are ensured.

The utility model relates to an ecological seawall structure, which belongs to the technical field of bank protection engineering and comprises a seawall foundation, the seawall foundation comprises a slope top and a slope body, and a retaining wall structure is arranged at the joint of the slope top and the slope body. An arc-shaped wave dissipation ridge is arranged at the position, spaced by a certain distance from the retaining wall structure, of the top end of the slope body, a cushion layer is laid at the position, located between the arc-shaped wave dissipation ridge and the retaining wall structure, of the top end of the slope body, and the cushion layer comprises a dry stone cushion layer and a broken stone cushion layer which are sequentially arranged from top to bottom. A first block stone cushion layer is laid at the position, located on the side, away from the retaining wall structure, of the arc-shaped wave dissipation ridge, of the top end of the slope body, extends to the bottom of the slope body and further extends outwards to be connected with a second horizontal block stone cushion layer, and a first concrete retaining wall is arranged at the joint of the first block stone cushion layer and the second block stone cushion layer. The accropode is laid at the top end of the second block stone cushion layer and located on the outer side of the first concrete retaining wall. The safety of the seawall can be effectively guaranteed, and the stability of the seawall structure is guaranteed.

The invention belongs to the technical field of port, coast and offshore engineering breakwaters, and discloses a method and system for evaluating the stability performance of a wave dissipation embankment of a combined seawall. The method comprises the steps of obtaining hydrological data of an area where the combined seawall is located and structural section data of the combined seawall, establishing a wave power numerical model, and performing breakwater body wave climbing simulation and breakwater top wave overtopping simulation on the target combined seawall by adopting the wave power numerical model, the wave force and the wave moment of the breakwater are obtained through calculation, and a wave load index is determined; calculating the self gravity of the wave dissipation embankment of the target combined seawall, the connection force between the wave dissipation embankment and the slope type seawall and the moment of the wave dissipation embankment to the overturning fulcrum to obtain the gravity and the gravity moment of the wave dissipation embankment, and determining the structural index of the wave dissipation embankment; and according to the wave load index and the wave dissipation embankment structure index, the anti-tilting stability and anti-sliding stability safety coefficients are calculated. According to the invention, the accuracy of disaster early warning is improved. The practical application value is realized.

The invention relates to the technical field of environment monitoring, in particular to a seawall ecologicalization real-time monitoring method based on multi-source data fusion. The method comprises the following steps: acquiring structure monitoring data, ecological monitoring data and water quality monitoring data of a seawall through an Internet of Things sensor, and acquiring remote sensing data of a seawall area in combination with satellite remote sensing and an unmanned aerial vehicle image; performing space-time registration and fusion on different data sources to generate a unified multi-source fusion data set; identifying a red tide abnormal event based on the fused data set, and constructing a red tide influence conduction model for predicting the damage degree of the red tide to the ecological system and the influence of the red tide to the stability of the embankment body; establishing a coupling evaluation model of ecological indexes and structural indexes, calculating a coupling coefficient by using a fuzzy comprehensive evaluation method, dynamically adjusting ecological and structural weights according to a model output result, and calculating a seawall comprehensive health index; graded early warning information is automatically generated according to a preset threshold value, and collaborative monitoring and intelligent early warning of seawall ecology and structure safety are achieved.

The invention provides a device for simulating soil erosion during seawall overtopping and a simulation method. A water flow passage is defined by the inner wall surface of a test pipeline, and a test piece inlet is communicated with the water flow passage; the water outlet end of the water supply device communicates with the upstream of the water flow channel. The test piece jacking device comprises a jacking mechanism, a detection piece and a control module, a test piece mounting position on the jacking mechanism is embedded in a guide cylinder connected with the test piece inlet, a test piece extends into water flow of the water flow passage along with movement of the test piece mounting position, and the distance from the top of the test piece to the bottom of the water flow passage is the upper limit height; the detection piece detects the height of the test piece in the water flow channel; the control module is used for controlling the jacking mechanism to drive the test piece mounting position to ascend when the detection piece detects that the height of the test piece reaching the bottom of the water flow passage reaches the lower limit height, so that the distance from the top of the test piece to the bottom of the water flow passage reaches the upper limit height again, soil body erosion during seawall overtopping is simulated, and soil body erosion characteristics are researched.

The utility model discloses an ecological seawall surface protecting structure which comprises a plurality of planter surface protecting structures constructed on a slope surface. The wave dissipation platform is constructed in front of the planter surface protection structures and is connected with the slope surface; the embankment top wave wall is constructed behind the planter surface protection structures and is connected with the slope surface; the animal and plant living platforms are planted at the tops of the planter surface protecting structures, and the foundation structures are constructed at the bottoms of the planter surface protecting structures.

The invention relates to the technical field of seawall ecological transformation, and discloses a slope type seawall inner slope ecological transformation method which comprises the following steps: selecting a seawall section suitable for ecological transformation according to three first-level indexes, namely a seawall shoreline foundation, hydrology and water quality conditions and surrounding environment conditions; constructing a pool in the selected seawall section according to the terrain; constructing a pool base; and constructing a plant community in the water pool according to the life type, the phenological period and the salt tolerance of the plant. According to the method, a proper transformation section can be selected in combination with various environmental factors of a transformation area, then a corresponding water pool is constructed in combination with the landform, then a proper ecological material is selected to construct a substrate, and different plant communities are constructed in the water pool according to the characteristics of different plants. A natural-imitated seawall ecological space is built, the flood prevention and tide blocking functions of the seawall are guaranteed, the hygrophytes, aquatic plant communities and planktons can be utilized, an inhabiting and foraging environment is built for aquatic animals and hydrophilic birds, and the ecological service function of the seawall is improved.

The embodiment of the invention relates to a seawall safety evaluation method and device, computer equipment and a storage medium. The seawall safety evaluation method comprises the steps of constructing a seawall safety comprehensive evaluation index system; quantifying and grading evaluation factors in the seawall safety comprehensive evaluation index system based on a preset rule, and constructing a seawall safety evaluation model; acquiring multiple pieces of measured data of a target seawall, and selecting an evaluation section based on the multiple pieces of measured data; performing comprehensive scoring on the evaluation section based on the seawall safety evaluation model; and judging the safety level of the target seawall based on the comprehensive scoring result. Therefore, various factors influencing safety, such as seawall engineering quality, moisture-proof capability, structural stability and seepage safety, are fully considered, and the weight of each influence factor is determined in a hierarchical and clear manner by decomposing each factor to construct a perfect index system, so that the seawall safety state conforming to the field reality can be quantitatively evaluated, and the safety of the seawall is ensured. And scientific technical support is provided for seawall maintenance, reinforcement and operation management.

The utility model provides a soft foundation embankment structure with an embankment body space integrated with a municipal function, which relates to the technical field of seawall structures, and comprises a suppression platform I, a seawall complex, a closed earthwork and a suppression platform II which are sequentially arranged from open sea to inland, the seawall complex comprises a pile foundation, a reinforced concrete raft plate arranged on the pile foundation and a reinforced concrete empty box dike body arranged on the reinforced concrete raft plate. A comprehensive pipe gallery space, a parking space, a patrol inspection and maintenance and driving channel and a driving entrance and exit for entering the patrol inspection and maintenance and driving channel are formed in the reinforced concrete empty box embankment body, and a drought gate is arranged at the entrance of the driving entrance and exit. The repression platforms in front of and behind the embankment body are implemented firstly, cement mixing piles and other composite foundation treatment methods are adopted for foundations below the platforms, the negative friction resistance effect, deformation and other adverse effects caused by soft soil foundations on pile foundations are greatly reduced, the mixing piles below the repression platforms on the inner side are densified to form frame supports, and the good shielding effect on later land area soil filling influences is achieved.

A panel for a seawall has a frame. The frame has a first area and forms front surface which is substantially planar. A typographical member disposed on the frame has a second area, less than the first area. The typographical portion extends in a direction away from the frame and forms an uneven surface, the surface having at least one depression therein having a depth of at least three inches.

The invention relates to the technical field of coast ecological restoration, in particular to a muddy coast embankment-penetrating biological channel and a construction method. The invention aims to provide the muddy coast embankment-penetrating biological channel and the construction method, the biological channel and the construction method have the function of protecting biological diversity, and the effective ecological protection effect is achieved by fully combining the coast ecology principle and aiming at the geological and ecological characteristics of the muddy coast. According to the technical scheme, the muddy coast embankment penetrating biological channel comprises a seawall, a coastal tidal beach located on the coastal side of the seawall, an embankment rear ecological zone located on the back-to-sea side of the seawall and an embankment body biological channel transversely penetrating through the lower portion of the seawall to communicate the coastal tidal beach with the embankment rear ecological zone. A construction method of a muddy coast embankment penetrating biological channel comprises the steps of coastal tidal beach construction, embankment body biological channel construction and embankment back ecological zone construction.

The utility model discloses a multi-stage platform continuous energy dissipation ecological seawall, and belongs to the technical field of ocean engineering protection and ecological environment construction, the multi-stage platform continuous energy dissipation ecological seawall comprises an ecological seawall, the ecological seawall is composed of energy dissipation platforms, energy dissipation blocks and a vegetation planting area, and the energy dissipation platforms are sequentially arranged in multiple stages from high to low; an energy dissipation block body is arranged on the sea facing surface of each stage of energy dissipation platform; the device is novel in design and ingenious, through the continuous energy dissipation design of the multi-stage platform, the impact energy of sea waves on the seawall is effectively reduced, the protection capacity of the seawall is improved, meanwhile, protection and recovery of the marine ecological environment are promoted through combination of the vegetation planting area and the water-permeable structure, diversification and ecologicalization of seawall functions are achieved, and in addition, the device is suitable for popularization and application. And due to the application of the modular construction method, the seawall construction efficiency and quality are improved, the long-term maintenance cost is reduced, and the practicability of the device is greatly improved.

The application discloses a seawall protection structure design method and system based on a winding space metasurface technology, relates to the technical field of seawall protection engineering, and comprises the following steps: selecting a suitable winding space metasurface unit model according to frequency parameters and wave height parameters of sea waves; designing and optimizing the winding space metasurface unit model based on a preset refractive index distribution; arranging and installing the designed winding space metasurface unit model array outside a seawall and debugging; and adjusting the arrangement and refractive index of the winding space metasurface unit model to cope with different sea wave conditions by monitoring sea conditions in real time. The application modulates the energy distribution of water surface waves, realizes focusing, scattering or absorption of the waves, effectively reduces the direct impact of the sea waves on the seawall, enhances the protection effect, and reduces the long-term maintenance cost.

The utility model relates to the technical field of seawall ecologicalization construction, and discloses an ecological module structure suitable for seawall fence plate slope protection transformation, which comprises an ecological frame. According to the ecological module structure suitable for seawall fence plate slope protection transformation, the ecological frame is arranged to be used for containing planting soil and cultivating plants, the reverse arc can effectively guide a wave water body to return to the ocean through the guiding effect of the arc face, the scouring force and the overtopping amount of sea waves to the structure are remarkably reduced, and the service life of the structure is prolonged. A lifting hook can be fixed through a first lifting hole and a second lifting hole, the structure can be conveniently moved, lifting operation can be efficiently carried out, meanwhile, when the structure is damaged, the structure can be rapidly disassembled, the supporting legs are installed in wave dissipation cavities between fence plate ribbed beams, and therefore the overall stability and durability of the structure are improved. And the drainage holes extend into the ecological frame, redundant water can be effectively drained, and a proper amount of water can be reserved to maintain normal growth of plants in the ecological frame.

1. Name of the product in this design: Shore and seawall wave-dissipating module. 2. Purpose of this design: To be fixed on seawalls and breakwaters to counteract the impact of ocean waves. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The present invention relates to a fully automatic overtopping event occurrence sensing and recording device. The purpose of the present invention is to provide a sensitive and accurate fully automatic overtopping event occurrence sensing and recording device. The technical solution of the present invention is: a fully automatic overtopping event occurrence sensing and recording device, characterized in that: a seawall model is provided, a water collection tank is provided behind the seawall model and a weight sensor capable of sensing the weight change of the water collection tank is provided, an overtopping signal acquisition unit capable of generating a potential difference change when encountering an overtopping water body is provided on the top of the seawall model, the overtopping signal acquisition unit circuit is connected to a data acquisition box, and the data acquisition box obtains a potential difference change curve as a basis for judging the occurrence of an overtopping event. The present invention is applicable to the field of physical model tests in the direction of coastal engineering.

The invention discloses a multi-level dynamic toughness coast protection system and a design method, and the system sequentially comprises, from sea to land, a leading edge self-adaptive buffer zone which is arranged at a seabed scarp at the leading edge of a main seawall, is made of a discrete material, and is set to dynamically adjust the form to a stable profile under the action of hydrodynamic force; the offshore submerged siltation promotion and wave absorption barrier is arranged behind the front edge self-adaptive buffer zone in parallel, the crest elevation of the offshore submerged siltation promotion and wave absorption barrier is located near the average tide level, and the offshore submerged siltation promotion and wave absorption barrier is arranged to reduce wave energy and form a siltation promotion area between the offshore submerged siltation promotion and the main seawall; the artificial bionic wave absorbing beach reef system is formed in the siltation promotion area, has the width and the elevation simulating a natural reef and is arranged to break waves in advance so as to dissipate wave energy; the ecological composite section main body protection structure serves as ultimate protection and is provided with a gentle slope or a composite section. According to the method, the safety, the reliability and the economical efficiency of an engineering scheme are ensured.

The invention relates to an ecological seawall structure with an energy dissipation function, and relates to the technical field of seawalls. The device comprises a pile foundation and a plurality of platforms, the platforms are sequentially stacked on the pile foundation, the adjacent platforms are connected through a connecting mechanism, the connecting mechanism is used for driving each platform to move by the same distance relative to the platform below the platform, a planting groove is formed in the topmost platform, and water permeable holes are formed in the bottom of the planting groove. The seawall has the effect of being high in seawall diversification degree.

This invention discloses a monitoring method for existing cracks in seawalls, comprising the following steps: collecting and marking the locations of existing cracks on the seawall surface through manual inspection or an image acquisition system; classifying the cracks at the marked locations into horizontal, vertical, or diagonal cracks; planning the most suitable armored optical fiber deployment scheme based on the crack type and extension direction; cleaning the seawall surface at the installation location based on the deployment scheme; installing telescopic guide rails on both sides of the crack opening and closing direction, and inserting the armored optical fiber into the telescopic guide rails; dynamically monitoring the cracks; triggering a re-inspection of the location by the image acquisition system or manual inspection when the crack exceeds a threshold, and selecting appropriate repair measures or key monitoring; dynamically monitoring existing cracks to monitor their development trend, focusing on high-risk cracks, and notifying management personnel to take appropriate remedial measures when necessary to ensure the safety of life and property of coastal residents.

The utility model discloses an ecological reconstruction structure for a seawall top. The ecological reconstruction structure comprises a pavement structure constructed on the seawall top, the wave wall is constructed on the embankment top and located on the outer side of the pavement structure; the green belt is constructed on the inner side of the wave wall; the road shoulder is arranged on the inner side of the wave wall and is positioned between the pavement structure and the green belt; and the water storage device is positioned below the pavement structure, is adjacent to the road shoulder, and is used for accumulating rainwater at the embankment top and supplying water to the green belt. The ecological property of the seawall is improved, the safety of the seawall is ensured, the water discharge amount of the seawall top is reduced, and growth water is provided for greening.

The invention relates to the technical field of ecological seawalls, in particular to an ecological seawall for marine ecological restoration, which comprises a seawall main body, the middle of the seawall main body is provided with a garbage storage cavity, the top of the garbage storage cavity is provided with a sealing assembly, the sealing assembly comprises a bearing frame, and the bottom of the bearing frame is rotatably connected with a sealing plate. A rotating frame is installed at the bottom of the sealing plate, a connecting rod is rotationally connected to the rotating frame, a floating block is installed at the bottom of the connecting rod, a backflow baffle is arranged on the outer side of the sealing assembly, an upstream slope is arranged on the upstream face of the seawall body, and a flow guide groove is formed in the upstream slope. In particular to an ecological seawall for marine ecological restoration, which has the functions of wave prevention, bank protection, garbage collection and ecological cultivation, is suitable for scenes needing ecological restoration and protection along coastlines, estuary areas and the like, and can realize restoration and improvement of the ecological environment of an offshore area while guaranteeing the protection performance of the seawall.

The invention belongs to the technical field of seawater environment anchor rods, and provides a seawall slope permanent self-propelled anchor rod suitable for a seawater environment. A seawall slope permanent self-propelled anchor rod suitable for a seawater environment comprises an anchor rod body and an anchor rod drill bit at one end of the anchor rod body, the anchor rod body comprises a hollow rod body and an isolation frame structure, the isolation frame structure comprises a first isolation frame, the hollow rod body is located in the center of the anchor rod body, and the hollow rod body is sleeved with a corrugated pipe structure; a first isolation frame is arranged between the corrugated pipe structure and the hollow rod body. Through the arrangement, seawater is isolated from being in contact with the hollow rod body, the corrosion resistance of the self-propelled anchor rod is improved, enough anchoring friction force is provided, and displacement of the anchor rod in the anchor rod hole is avoided; the first isolation frame in the isolation frame structure is used for separating the hollow rod body and the corrugated pipe structure, the effects of supporting and centering the hollow rod body and the corrugated pipe structure are achieved, it is guaranteed that the hollow rod body and the corrugated pipe structure are concentric, and the overall mechanical property is guaranteed.

The utility model relates to a gantry block wharf device suitable for loading and unloading large marine equipment, which comprises an approach bridge, a wharf approach bridge and a gantry crane, the approach bridge and the wharf approach bridge are arranged in parallel, and a neutral water area space for berthing of a ship is reserved between the approach bridge and the wharf approach bridge; the approach bridges and the wharf approach bridges are arranged on the seawall shoreline side of the land storage yard, and the platform axes of the approach bridges and the wharf approach bridges are perpendicular to the seawall shoreline. Double-track rails are mounted on the approach bridge and the land storage yard as well as the dock approach bridge and the land storage yard, the two portal cranes stretch across the neutral water area space and are mounted on the double-track rails, and the two portal cranes are symmetrically distributed in the length direction of the approach bridge; the portal crane slides along the double-rail track to realize hoisting of the large components on the ship; according to the utility model, two portal cranes are used for lifting together, and large components are lifted and moved to a wharf for shipping from a land storage yard behind, so that the lifting requirements of the large components in ocean equipment engineering and the like are met.

To provide a storage method of radioactive materials in concrete containing absorbent capable of solving the problems at the Fukushima Daiichi Nuclear Power Plant of the Tokyo Electric Power Company that an international agreement is now required for releasing treated water containing tritium and low concentrations of radionuclides into the ocean, as ALPS cannot treat the contaminated water, and further, uncollected contaminated water is being released directly into the ocean from the seawall, posing a potential threat.SOLUTION: After the radioactive materials are adsorbed onto coarse aggregate sintered with radioactive material adsorbent, and the coarse aggregate, tritium-containing water, fine aggregate, and cement are mixed, and the concrete is stored underground, underwater, or in the sea within a seawall. In order to isolate the soil on the sea side and land side of a seawall in the bay that has been contaminated by the leakage of contaminated water or contaminated water from under the seawall into the ocean, a caisson revetment is built around the bay. In the caisson, contaminated water or soil on the sea side and land side of the revetment is allowed to be absorbed into the coarse aggregate made of sintered radioactive material absorbent. The coarse aggregate is mixed with water containing tritium, fine aggregate, and cement to form concrete, and similarly, the concrete is poured between the bay and the caisson embankment.SELECTED DRAWING: Figure 1

The invention relates to a coastal inner bay upstream face structure and a construction method.The coastal inner bay upstream face structure comprises a seawall, a first groove body and a grating piece, a plurality of protruding parts are arranged on one side of the upstream face of the seawall, at least part of the protruding parts extend in the height direction of the seawall in the length direction, and the protruding parts are arranged at intervals in the length direction of the seawall; a groove which is concaved in the convex parts is formed between every two adjacent convex parts; the first groove is located on the side, close to the bottom, of the seawall upstream face, and an opening is formed in the top of the first groove. The grid piece comprises a first grid and at least two second grids, the first grid extends in the length direction of the seawall and is arranged among the multiple convex parts, and a preset gap is formed between the first grid and the inner wall of the groove; the second grids extend in the thickness direction of the seawall and are arranged on the two sides of the first grids. The coastal inner bay upstream face structure can provide inhabiting and refuge spaces for fishes and other coastal aquatic organisms, and protection and recovery of marine organisms are promoted.