39 results about "Coastal erosion" patented technology

The invention provides a method for herbaceous plants to cope with global climate change. The method comprises the steps of 1, with herbaceous plants being the main body, managing stony desertification and desertification, controlling coastal erosion and water and soil loss and preventing an earth ecological system from collapsing and breaking down; 2, planting the herbaceous plants in regions with the stony desertification, the desertification, the coastal erosion and the water and soil loss, fixing the surface soil layer, recovering or rebuilding vegetation and controlling emission of carbonin lithosphere to atmosphere and hydrosphere; 3, utilizing the characteristics that the fast-growing herbaceous plants are fast in growth and development, high in carbon capturing efficiency and hugein biomass, convert movable carbon in the atmosphere into fixed carbon, develop new climate economy, further promote the increase of the amount of the fixed carbon in the industries of agriculture, forestry, animal husbandry, side-line production and fishery and achieving a world zero carbon development mode. Ecological development is the best carbon emission reduction mode, and carbon dioxide isprecious wealth of the human. Respecting the nature, conforming to the nature, protecting the nature and guiding the nature solve the problem of ecology, environment, resources, economy and global climate warming.

The invention discloses a novel flexible coast protection structure and a construction method of the novel flexible coast protection structure. The structure comprises a mattress tying beam and a wave dissipating platform, wherein the mattress tying beam and the wave dissipating platform are close to the designed water level; the wave dissipating platform is connected with the bottom and the top of a bank slope through a slope and a wave wall respectively; a pebble cushion layer and composite geotextiles are sequentially laid on the lower surface of the slope and the lower surface of the wave dissipating platform. Composite geotextiles and a gravel cushion layer are sequentially laid on the upper surface of the slope and the upper surface of the bottom of the bank slope. A concrete hinged mattress is laid on the gravel cushion layer. The top end of the hinged mattress is connected to the mattress tying beam. The method comprises the steps of prefabrication of concrete ballast block bodies, construction of the mattress tying beam and a bank protection structure above the mattress tying beam, splicing of the concrete hinged mattress, mattress sinking construction and the like. Compared with the existing coast protection technology, the novel flexible coast protection structure has the advantages that the integrity is good, the anti-erosion capability and the coastal erosion deformation adaptability are high, materials are easy to obtain, construction is easy, and maintenance management is convenient; the problem that a traditional rigid seawall bank protector is prone to collapse and damage on the condition of coastal washout deformation can be effectively solved, and a new approach is provided for coast protection.

The invention provides a movable type permeable spur structure capable of preventing coast erosion. The movable type permeable spur structure capable of preventing coast erosion comprises a coast, open occasions and anchorage devices. A plurality rows of open occasions are installed on one side of the coast at intervals and in a staggered mode, and the adjacent open occasions are connected through anchorage devices; the center of each open occasion is in a hollow shape, an opening is formed in the upper end of each open occasion, connecting rings are symmetrically installed on the two sides of each open occasion, a water inlet hole is formed in each open occasion, a trapezoidal bottom mat is installed at the bottom of each open occasion, and trapezoidal bottom mats are arranged on the foundation of the coast; the anchorage devices are installed on the two sides of the open occasions and connected with the open occasions through a plurality of anchor chains so as to be fixed to the foundation of the coast. According to the movable type permeable spur structure capable of preventing coast erosion and a construction method, the effect of coast erosion prevention can be achieved, and the movable type permeable spur structure can be conveniently dismounted after the protection requirement is met; the permeable structure of a spur can reduce damage of waves and tides to the spur, so that the project amount is relatively reduced, and construction efficiency is improved; and in addition, construction materials of the dismounted spur can be recycled, and waste of construction materials is avoided.

The invention relates to a high-grade highway structure of a soaked sand dredger filling embankment in a coastal region, relating to an embankment pavement structure of a novel highway. The highway structure comprises a bagged sand cofferdam (1), an anti-leakage protection layer (8) outside the cofferdam (1), dredger filled sand (3) in the cofferdam, a pile base (2) in the dredger filled sand, a crushed rock layer (4), a cement-straightening gravel layer (6) and an asphalt cement layer (7) and is characterized in that a solidified cement layer is paved between the crushed rock layer (4) and the cement-straightening gravel layer (6), the crushed rock layer (4) has the thickness of 20-80 cm, the solidified cement layer with the thickness of 40-80 cm is paved at the top of the crushed rock layer (4), the cement-straightening gravel layer with the thickness of 30-60 cm is arranged on the solidified cement layer, and the total thickness of the three layers is 100-160 cm. According to the invention, great mounts of dredger filled sand and silt abundant in the coastal region are used as building materials for roadbeds and embankments and substitute a great amount of crushed rock needing long-distance transportation and having higher cost so as to decrease the construction cost and improve the comprehensive road performance; and the direct investment of the road construction is reduced by 20-40 percent by substituting partial cement for stabilizing gravels.

The invention discloses an early-warning system for a coastal zone. The system comprises region monitoring subsystems, each of which comprises a data obtaining module, a data analysis module and a region early-warning module; a main control subsystem which comprises a main early-warning module, an ecological security evaluation module, a functional region planning module and an asset value evaluation module. According to the invention, the coastal zone is divided into a plurality of monitoring regions, and each monitoring region is provided with a region monitoring subsystem which is used forthe real-time monitoring and early warning of the ecological environments (tsunami, water pollution, fresh water resources, coastal erosion and sea breeze) of each monitoring region of the coastal zone. Meanwhile, the monitoring data of each monitoring region is transmitted to the main control subsystem. The system not only can achieve the early warning of the ecological environment in each monitoring region, but also can achieve the early warning of the same type of ecological environments of the coastal zone. Therefore, the system is complete in monitoring, is simple and objective in monitoring method, is high in repeatability, can achieve the monitoring early warning of the ecological environments of the coastal zone, and is good in early-warning effect.

The invention provides an erosion coast plane compound type beach restoration method. The method comprises the following steps that a coastline is divided into a plurality of sub-units; effective wave-breaking wave height Hb and wave-breaking angles theta b in the sub-units are acquired; coastwise net sediment discharge rate of each sub-unit and the sand-gravel particle size of each sub-unit are calculated; and each sub-unit is filled with sand gravels according to the coastwise net sediment discharge rate and the sand-gravel particle size, and the sand gravels from a lower reach are carried to an upper reach periodically. According to the erosion coast plane compound type beach restoration method, the different coastwise net sediment discharge rates of a strong erosion coast section and aweak erosion coast section are fully considered, the whole coast is divided into the plurality of sub-units and is subjected to compound type design, the traditional beach maintenance range is broadened, and the method is equally applicable to areas with relatively severe coastal erosion, so that the improvement of the strong erosion coast protective capability and the improvement of the landscape effect are greatly promoted, and the purpose that the coastwise maintenance particle size is different, but the coastwise net sediment discharge rate is remarkably reduced is achieved.

A reinforced concrete triangular pyramid block for preventing the coast or the shore from being eroded by wave energy. The block has a regular triangular pyramid shape, is made of reinforced concrete, and includes supporting globes 10 and 10' placed at vertices of the triangular pyramid block; supporting rods 20 and 20' connecting the supporting globes 10 and 10' to each other, thereby forming the triangular pyramid shape; a central globe 30 located in the center of the block; and reinforcing rods 40 and 40' connecting middle portions of the supporting rods 20 and 20' to the central globe 30.

The invention relates to a saline-alkaline tolerance windproof landscape forest in coastal regions of the southern part of China. The windproof landscape forest comprises four parts, namely a first scattering structure shrub and herbaceous plant zone, a second air permeation structure tree frost zone, a third scattering structure tree and bush zone and a fourth air prevention tight structure tree,bush and grass zone which are constructed from 400-800m away from a flood tide water level from a coastal zone to a land in sequence. With the mixed combination of scattering structures, air permeation structures and tight structures, a single structure of a conventional wind prevention forest is changed, a typhoon running route has complex resistance, due to the air scattering and permeation structure at the front end, typhoon can be scattered and led to high spaces with less buildings and human activities, wind near the ground is further dredged by the scattering structures and is finally baffled by the tight structures, then production and living activities in the windproof forest can be protected, and typhoon loss can be reduced. The windproof structure provided by the invention is reasonable and good in windproof effect.

The invention discloses a coastal erosion and tide level real-time monitoring device. The device comprises a first pressure intensity measurer, a second pressure intensity measurer, a filter unit, a shell and a data processing module; the monitoring device is embedded into a pre-detection point on the costal sand of a tidal zone, a first pressure intensity numerical value P1 and a second pressureintensity numerical value P2 are transmitted to the data processing module, the data processing module performs data computation processing to obtain sediment thickness H=(the first pressure intensitynumerical value P1-the second pressure intensity numerical value P2)/[(slit density rho slit/sea water density rho water)*g]; the device has the features of being high in measurement precision, automatic in monitoring, time-saving and labor-saving in measurement process.

A lost sand collecting apparatus, according to the present invention, comprises: a filling frame which has a plurality of plates, extends in the lateral direction and forms a plurality of filling spaces; and a collecting means which is provided on the filling frame and is positioned so as to correspond to the filling spaces. The plurality of plates are overlapped so as to be parallel to each other and the plates adjacent with a fixed distance therebetween are partly connected to one another. The collecting means can be formed in a flat structure protruding upward from the filling frame and disposed on the back of the filling spaces with respect to the littoral current toward the sea, and comprises a barrier layer or a web layer. The barrier layer or the web layer is curved toward the littoral current toward the sea. According to the present invention, the collecting means enables inhibition of the flow of the littoral current toward the sea and collection of sand moving with the littoral current flowing from the shore to the sea, thereby regulating coastal erosion. Therefore, coastal beaches can be preserved.

The present invention relates to submergible modular breakwaters for lowering the kinetic energy of water waves. In particular, the present invention is directed toward a physical embodiment that, when in its floating position, will provide resistance to the movement of water waves in the direction of the waves for a large range of wave periods. The invention is a submergible modular breakwater that can be kept underwater on the sea or lake floor as not to provide any barrier to navigation until it is needed to lower the kinetic energy of waves, when it is quickly raised afloat to provide protection, especially for coastal erosion control during storms or rough waters. Once the lowering of the kinetic energy of water waves is not longer needed, the modular breakwater can be quickly sunk to the sea or lake floor in order to remove any barrier to navigation.

The invention discloses an automatic identification method and device for coast erosion and sedimentation based on shoreline data, and belongs to the field of ocean monitoring. The method comprises the following steps: firstly, acquiring coastline vector data of two time phases, and respectively performing topology check on the coastline vector data to ensure that a coastline has two end points and does not coincide with each other; secondly, based on coastline vector data of two time phases, according to a specific spatial analysis method, automatically obtaining a gap region, automatically giving two attributes of sedimentation and erosion according to a certain rule, carrying out consistency check and precision evaluation, and finally obtaining the distribution range and area of sedimentation and erosion. The method and device can automatically extract erosion and sedimentation areas, reduce misjudgment, erroneous judgment and missed judgment caused by artificial interpretation, improve the detection speed, and quickly and accurately obtain the dynamic change of coastal zone intertidal zone information.

A system for impeding shore erosion includes a sea-facing barrier wall penetrated by large holes that allow water with entrained sand to enter the apparatus. Smaller holes provided in a rear wall allow the water to drain into an underlying reservoir after the entrained sand has settled. An extension can be abutted to a top of the barrier wall to enhance sand collection during a storm. Water that flows over the barrier wall is caused to flow over a top of the extension, whereby water with entrained sand falls through openings in the extension top. Sand collected by the extension remains on the shore when the extension is removed. The apparatus can include plywood, metal, or plastic. Embodiments can be disassembled and/or folded for transport and storage. Internal reinforcing partition walls can extend between the barrier and rear walls. The apparatus can be further anchored by stakes.

The invention provides a frigid zone wood frog cultivation technique in a coastal region. The frigid zone wood frog cultivation technique in the coastal region is characterized by comprising the following steps that froglets are bred, wherein the froglets are placed in a frog fold with a density of 300-400 froglets per square meter, every froglet is fed with 1-2 yellow mealworms which are 2-3 years old every day, and every froglet is fed with 2-3 yellow mealworms which are 4-5 years old twice every day after 40 days; corn stalks or branches and leaves are placed surrounding the frog fold so that the froglets can go ashore conveniently; mature frogs are bred, wherein the mature frogs are placed in the frog fold with a density of 40-50 mature frogs per square meter, feed cast to the mature frogs is mainly yellow mealworm larvae, and every wood frog is fed with 3-4 yellow mealworm larvae once every day between 4 and 7 in the morning or between 5 and 7 in the afternoon. The frigid zone wood frog cultivation technique solves the problems that wood frogs grow slowly in a frigid zone and social requirements for the wood frogs cannot be met, and the frigid zone wood frog cultivation technique is suitable for being widely used in coastal regions.

The invention provides a protective device for preventing coast erosion and a construction process of the protective device. According to the protective device, a bank base wall is formed by combining a plurality of building modules, an opening is formed in the upper side face of each building module, a filling layer is arranged in each opening, a tenon structure is arranged on one side face of each building module, a mortise structure is arranged on the other side face of each building module, the plurality of building modules are stacked up and down to form a vertical building module group, the plurality of vertical building module groups are connected left and right to form a bank base layer wall body and are connected through the tenon structures and the mortise structures. A conventional construction mode is abandoned, but a modular mode is adopted for construction, the construction process of a construction site can be greatly shortened, and uncertain factors influencing the construction process are greatly reduced; the building module is of a container-shaped structure, openings of the building module are filled with waste gravel and soil on the site on the construction site, building materials can be saved, and the step of removing the waste gravel and soil on the site is omitted.

The invention belongs to the field of coast ecological restoration, and particularly relates to an artificial shellfish and algal reef protection system for coast restoration and application thereof.The artificial shellfish and algal reef protection system comprises a shellfish and algal reef-like cluster, the shellfish and algal reef-like cluster comprises a plurality of shellfish and algal reef monomers arranged in rows at intervals, the multiple adjacent shellfish and algal reef monomers in any row are arranged in an attached mode, and the shellfish and algal reef-like cluster is arranged to be permeable and used for coast protection; the plurality of shellfish and algae reef monomers are placed on the top surface of the base mattress layer; the plurality of shellfish and algae reef monomers are limited on the top surface of the base mattress layer through the stabilizing device; and the biological inhabitation areas are arranged on the side edges of the multiple shellfish and algae reef single bodies arranged in rows, and the biological inhabitation areas are used for culturing marine commercial crops. According to the invention, coastal erosion can be slowed down, natural or artificial beaches can be protected, the stability of shorelines can be maintained, meanwhile, culture areas of marine plants, shellfishes, fishes and the like are arranged in the shellfish-algae reef body, the marine environment quality is improved, and certain economic benefits can be created.

The invention discloses a water-permeable breakwater with the function of protecting a coast against erosion and taking breed into account. The water-permeable breakwater comprises a breakwater body,wherein the breakwater body is integrally in a circular ring with a notch shape, a plurality of culture ponds distributed at equal intervals are arranged on the outer side of the breakwater body, a left side bank, a front bank, a right side bank and the breakwater body are jointly enclosed to form the culture ponds, a protective net is arranged at the top of the culture ponds, an automatic liftinggate, an operation room and a safety guardrail are arranged on the right side bank, an operation space is arranged at an outlet of the automatic lifting gate, an emergency crawling ladder is furtherarranged on the side wall of the operation space, the front bank is integrally in a cambered surface shape, the front bank is convex towards the direction of the breakwater body, a plurality of permeable water-permeable pipelines are arranged on the front bank and the breakwater body correspondingly, and interception nets are further arranged on the water-permeable pipelines located on the front bank.