68 results about "Tidal zone" patented technology

The method of cultivating mangrove in tidal zone adopts bamboo tube fixing technology. Bamboo tube is formed through breaking the bamboo nodes while leaving part of the lowest one for fixing the root of mangrove seedling, forming wedge in the lower section for being inserted into soil, and forming small side crack. Soil and mangrove seedling are then set inside the bamboo tube for artificially cultivation, and the bamboo tube with survived mangrove seedling is inserted in tidal zone, where the mangrove seedling grows further first inside the bamboo tube and then in the mud land after the bamboo tube is broken gradually. The bamboo tube serves as the nutritious pot for fixing and protecting mangrove seedling.

Devices, methods and systems for wave and water level measurement using a single DC (direct current)-coupled CW (continuous wave) Doppler radar for detecting water elevation changes in time when installed up to several meters from the water surface. The radar is wireless and can stream continuous data to a local PC (personal computer) or base station in range of its radio. The radar can sample up to 40 Hz and can run on batteries for continuous sampling. The radars can include multiple radar configurations of 1, 2 and 4 radar configurations. Applications for this radar can include the measurement of beach run-up, free surface elevation in tidal zones, and storm surge elevations near bridges and critical infrastructure during storm events.

The invention belongs to the technical field of environmental sanitation machinery, and particularly relates to a sand beach cleaning machine. According to the technical scheme, the sand beach cleaning machine comprises a traction frame (1), a rack (2), a guide device (3), a sieving and conveying device (4), a garbage self-discharging device (5) and driven wheels (6). Garbage in sand is turned up by a plurality of rows of spring pawls which are arranged in a staggered manner, is conveyed to the guide device under the effect of inertia, and then is rebounded onto the sieving and conveying device by the rebounding effect of the guide device, and therefore, the garbage is separated from most of sand; and a small amount of sand which is taken onto the sieving and conveying device is filtered out through sand leaking holes of filter screens, and finally, the garbage is conveyed into the garbage self-discharging device through the sieving and conveying device. The sand beach cleaning machine has good cleaning effects on garbage in dry sand, wet sand and tidal zones, and is suitable for various sand beach conditions. The problem that an existing net belt type sand beach cleaning machine has imperfect effect of cleaning wet sand beaches is solved.

The invention provides a component assembly-type roll-on berth structure and an assembly method. The component assembly-type roll-on berth structure comprises supporting piles, cross beams, steel reinforcement cages, prefabricated plates, reinforced concrete connectors and a reinforced concrete pavement, wherein the supporting piles are driven into the seabed; the cross beams are fixedly arranged on the upper parts of the supporting piles; the steel reinforcement cages are fixedly arranged on the top parts of the supporting piles; the fabricated plates are lap jointed on the cross beams; the reinforced concrete connectors are cast-in-place reinforced concrete and are fixedly connected with the supporting piles, the cross beams and the prefabricated plates; the reinforced concrete pavement is cast-in-place reinforced concrete, is cast on the upper parts of the prefabricated plates and the cross beams, and is fixedly connected with the reinforced concrete connectors; and the slope ramp roll-on berth structure is integrally formed. According to the component assembly-type roll-on berth structure, the amount of cast-in-place reinforced concrete is small at tidal zones; only the connectors and the pavement are cast-in-place reinforced concrete; and most of the components are prefabricated components and types are fewer, so that construction is very convenient; the construction period is short; the construction cost is low; the quality is easy to ensure; and the component assembly-type roll-on berth structure has the advantages especially at open sea islets and other places with poor construction conditions.

The disclosure relates to a device and method for a dry-wet cycle simulation test of concrete in a tidal zone and a splash zone. A main structure includes a liquid storage tank, a test chamber, a communicating pipe, air holes of the liquid storage tank, air holes of the test chamber, ceiling fans, steel pipes, a support frame, an upper water level sensor, a lower water level sensor, a temperature and humidity sensor, a temperature sensor, a chamber body support, a communication valve, a pipe support, a water inlet pump, a water inlet valve, a water outlet pipe, a water outlet pump, a water outlet valve, spray water pipes, spray heads, and a control box. The control box can control and record test parameters in real time, so that the boundary between the tidal zone and the splash zone is clear.

The invention discloses a large-tonnage shore transport vehicle, comprising a vehicle frame, a left crawler traveling mechanism and a right crawler traveling mechanism. The left and right crawler traveling mechanisms are symmetrically installed at two sides of the vehicle frame by a suspension mechanism, and consist of crawler belts which are installed on the left crawler frame and the right crawler frame by a driving wheel and a guide wheel arranged on the front end and the rear end of the crawler frame, wherein the crawler frame is a floating box type structure. The crawler frame of the crawler walking mechanism adopts the floating box type structure (i.e., the floating box crawler traveling device), so that the unit grounding pressure of the device is reduced; the traveling device transports the goods and materials at the shore between the tidal zones or below the tidal zone and has the floating sailing ability; and the vehicle frame connecting structure realizes the series-connection and the parallel-connection of a plurality of machines, so that the larger transporting capability is realized.

The invention provides a manufacture method of novel marine corrosion resistance stainless steel and a steel cable thereof. The marine corrosion resistance stainless steel comprises chemical compositions in the respective mixture ratio: less than 0.03 of C, less than 0.80 of Si, less than 0.50 of Mn, less than 0.03 of P, less than 0.01 of S, 22.0 to 25.0 of Cr, 13.0 to 15.0 of Ni, 3.0 to 5.0 of Mo, 2.0 to 4.0 of Cu, 0.10 to 0.20 of Nb, 0.30 to 0.45 of N, 0.03 to 0.06 of RE and the balance of Fe and unavoidable impurities. Steel wires required by the steel cable carry out electrolytic polishing processing before stranding. Compared with 316 stainless steel cables under the conditions of the same structure and the same cable diameter, the steel cable manufactured by the method of the invention has the advantages that the breaking force of the whole cable is improved by 3 to 4 KN, at the same time, the marine corrosion resistance annual corrosion speed rate in the environment such as marine atmosphere, splash zones, tidal zones, deep sea and the like is improved by more than ten times, and the maximum annual corrosion resistance depth is reduced by more than 5 times.

The invention provides an amphibious unmanned vessel for cleaning algae in intertidal zones. The amphibious unmanned vessel comprises a dipping and separating device, a temporary storage compression warehouse, amphibious driving propellers, an electric energy storage tank and a control system cabinet. The dipping and separating device comprises a frame, guide wheels, a conveying belt, an arc-shaped net plate cover and a licker-in roller. The temporary storage compression warehouse is arranged behind the dipping and separating device. The amphibious driving propellers on both sides are rigidlyconnected with the outer side of the temporary storage compression warehouse. The amphibious driving propellers are each mainly composed of two dragon spiral drums. The electric energy storage tank isarranged on the top of the temporary storage compression warehouse. The amphibious unmanned vessel realizes the amphibious unmanned cleaning operation of Enteromorpha prolifera in the intertidal zones, supra-tidal zones and sub-tidal zones of sandy beach coastlines, and the cleaning objects are mainly similar algae such as Enteromorpha prolifera, etc. The cleaning efficiency is high, the noise ofthe equipment is low, the safety is high, the natural environment is not destroyed in the cleaning process, and the operation sea area need not be closed.

The invention provides a solvent-free epoxy coating for a steel pipe pile, which is mainly applied to anticorrosive protection of steel pipe piles in oceanographic engineering. A main agent and a curing agent are fully mixed and cured to obtain a special heavy anti-corrosion coating, wherein the main agent comprises epoxy resin, an epoxy flexibilizer, pigments and filler, glass flakes and aluminum oxide and the curing agent comprises modified amine and a curing accelerant. Besides excellent epoxy corrosion resistance, the solvent-free epoxy coating for the steel pipe pile, provided by the invention, further has excellent seawater resistance, so that the coating particularly meets the anticorrosive requirement of the steel pipe pile in a tidal zone, further can be used for effectively protecting steel products in the fields such as corrosion prevention of storage tanks, sewage pipelines, pipelines of a chemical plant and the like, so that the steel can resist 20wt% hydrochloric acid, 20wt% sodium hydroxide and 60wt% sulfuric acid for a long time. The product has a very good film forming property and is stable to store.

The invention discloses on-line detection equipment for corrosion of a splash zone of an offshore wind power single pile foundation. A wind driven generator erected on the sea includes a tower foundation extending from the seabed to the sea surface, and the vertical cylindrical tower foundation penetrates through a sea mud zone, a continuous immersion zone, a tidal zone and a splash zone of the sea in sequence from bottom to top until entering and exiting an atmospheric zone. The detection equipment comprises an annular platform installed on the periphery of the tower foundation of the splashzone in a sleeving mode, and the annular platform is installed on the tower foundation through a lifting device. The annular platform is provided with a plurality of waterproof-treated cameras, and lenses of the cameras are oriented towards the tower foundation in the splash zone to perform image shooting on the outer wall surface of the tower foundation in the splash zone during the up-down movement of the annular platform driven by the lifting device. Through the above arrangement, the annular platform is driven by the lifting device to perform corresponding lifting and lowering displacementin a wave zone, so that the purpose that the cameras arranged on the annular platform comprehensively photograph the tower foundation in the wave area to accurately obtain the corrosion detection information of the tower foundation in the wave area is achieved.

The invention discloses a forming method of a mangrove forest capable of expelling birds. The specific forming steps of the mangrove forest capable of expelling birds are as follows: selecting tree species, performing elevation control of a tidal flat and performing afforestation. On basis of comprehensive analysis of the ecological adaptability of tree species, the maturity of an afforestation technique and the preference of birds, aegiceras corniculatum which has low preference of birds and high waterlogging resistance and can grow in a middle tidal zone is selected as the tree species of afforestation. Original high tidal zones suitable for birds to inhabit and build nests are adjusted into middle tidal zones, low tidal flats where water birds look for food during tide ebbing are adjusted into middle tidal zones and subtidal zones, a dense aegiceras corniculatum forest is planted in the middle tidal zones, and the habitat heterogeneity of intertidal flats is greatly simplified. Themangrove forest is directionally reformed by starting with governance of the habitat environment of birds and control of the food chain of the birds, and a mangrove forest wetland disliked by the birds is formed.

The invention relates to a silty coastal tidal flat vegetation restoration method. The method is characterized by selecting supratidal zones with weaker tidal effects and high tidal zones not subjected to flood irrigation by the middle tide level as vegetation construction zones, firstly building tide barriers and water channels running through vegetation restoration zones, optimizing hydrology and the sediment environment of a project zone, then constructing a water-salt control mode of high platform fields+field drainage and irrigation system+micro-furrow planting or high platform fields+drains+high ridge deep furrow planting, introducing freshwater, carrying out water-saving irrigation and high-efficiency salt leaching, creating a low-salt freshwater environment suitable for vegetation growth, meanwhile, paying attention to pumping tidewater and supplementing freshwater after high tide invasion, then selecting salt resistant pioneer vegetation to carry out the vegetation restoration cultivation technique comprising micro-furrow seeding and salt-avoiding seeding of suaeda salsa, reed rhizome transplanting and tamarix chinensis seedling raising and transplanting, and carrying out management and protection. The problems of stronger tidal effects on silty coastal tidal flats, bad sediment environment and low vegetation coverage caused by high soil salinity can be effectively solved by adopting the method.

The invention discloses a preparation method of a graphene-based steel anticorrosive coating, and relates to a preparation method of the graphene-based anticorrosive coating with excellent isolation and blocking effects on an erosion medium. The preparation method effectively solves the problem of poor corrosion resistance of a built steel structure anticorrosive coating in a high-salinity seawater environment. According to the method, the surface of steel is subjected to oil removal, rust removal and polishing treatment, then a epoxy resin coating is applied on the surface of the polished steel by using underwater curing epoxy resin, by adopting a silane coupling agent, a silane coupling agent aqueous graphene composite layer and an oily graphene layer transition process, the anticorrosive coating with excellent corrosion resistance which can be applied in a tidal zone, a splash zone and a high-humidity environment is obtained, and the single-channel graphene-based steel anticorrosivecoating can have the effects of improving self-corrosion potential by 100 mV, and reducing the corrosion current density by 1 order of magnitude. The method is applicable to the field of civil engineering.

A cultivation process by constructing pool in intertidal region, wherein an area similar the natural sea is constructed for providing a growth environment superior to the natural sea region, water drainage is proceeded everyday in the pool, and waves are formed during water inflow, which increasing the oxygen-containing volume of the water body, and culture excrement and old water can be discharged during water drainage. The cultivation investment needed by the process is less than other cultivation modes, and no contamination is produced.

The invention belongs to the technical field of seaweed cultivation, and relates to a seaweed cultivation method. Natural seawater is contained in a seawater tank, and the temperature and the ultraviolet lamp irradiation are controlled to conduct disinfection treatment for standby application; selected and collected seed seaweeds are washed, disinfected and dried, then conventional culture media are selected according to different seaweed types, temperature control and dim-light static cultivation are carried out, and then enzymolysis or direct cultivation is carried out; after to-be-cultivated somatic cells, to-be-cultivated gametophytes or to-be-cultivated callus mature, bolting-silk filtering, sectioning processing and / or centrifugal collecting are carried out, the somatic cells, the gametophytes or the callus are placed into the culture media according to the requirements of different kinds of seaweeds, the temperature, the illumination and the osmotic pressure are controlled for cultivation, and the somatic cells, the gametophytes / sporophores and the callus of the seed seaweeds are attached to the silk net faces in the culture media; silk nets are then manually scattered into the offshore or the tidal zone to conduct conventional seawater cultivation. The seaweed cultivation method is simple in technology, low in cost, convenient to operate, short in seedling growing time, good in cultivation effect and high in cultivation yield, and manpower is saved.

The present invention relates to a tidal zone and shallow water area petroleum sandstone artificial island construction method, in particular, it is a kind of artificial island quasi-precompression foundation treatment method. Said method includes the following steps: firstly, filling inshore weak clay layer surface with island body block stones to make the inshore weak clay layer surface be reached to artificial island construction and design standard before winter stoppage period and form foundation treatment heaped layer; then utilizing the packed island self-weight to increase effective stress of lower portion weak clay layer under sea-water so as to raise load-bearing capacity of foundation; after the sea is opened, continuously filling said weak clay layer with sandstone and mountain slope earth and rolling until the weak clay layer is reached to designed standard; finally, making upper portion building of island body.

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.

The invention discloses a tidal zone surveying and mapping method and device based on semantic segmentation, being characterized in that a semantic segmentation adversarial network composed of a segmentation model and an adversarial network is adopted; before the tidal zone is accurately surveyed and mapped, the tidal zone is automatically identified and divided by utilizing an acquired image based on semantic segmentation, so that the surveying and mapping efficiency is improved; and characteristics of high capacity and high flexibility of the adversarial model are utilized, and semi-supervised learning can be carried out, and matching of a lot of high-order statistical information between model prediction and calibration results is detected, and manual definition of all samples is not needed.

The invention discloses a water flow tracing real-time monitoring system and a speed measuring method. The water flow tracing real-time monitoring system comprises a water flow tracing ball, and the water flow tracing ball comprises a positioning module, a communication module, a control module, a power supply module and a spherical waterproof shell. The positioning module is used for regularly orirregularly obtaining the position and time data of the water flow tracing ball, the control module is used for caching the positioning data and the time data, the communication module is used for regularly or irregularly sending the positioning and time data to the cloud platform monitoring system, and the spherical waterproof shell floats on the water surface at a certain immersion ratio. The water flow tracing ball is low in manufacturing cost, long in endurance time, simple in speed measurement operation, high in automation degree and capable of better adapting to measurement of surface flow velocity and flow fields of extreme scenes such as embankments, flood peaks, bay flow fields, tidal zone boundaries and tidal flow boundaries of tidal rivers, bidirectional jet flow of entrance water channels, storm surge and the like and water areas with special terrains. The invention belongs to the technical field of hydrological data measurement.

The invention relates to a method for wrapping protection of concrete members in a tidal zone. Aiming at special strict comprehensive corrosion environment factors in the tidal zone, the method can make the concrete members in the tidal zone reliable, durable and protective by combining a PVF wrapping protection technology with silane impregnation, special base coat, sealing protection of a novelsilane-modified sealant and an adhesion transition technology. The method has the advantages of simplicity, convenience and rapidity in construction, energy conservation, energy conservation and environmental protection, and creates notable socioeconomic performance by keeping preservative effect of a wrapping protection system efficient, lasting and reliable, thereby being promising in application prospect.

The invention discloses a solvent-free epoxy coating, comprising a main agent and a curing agent in the weight ratio of 8:1. The main agent comprises the following components: 30-40 parts of aliphatic silicone modified epoxy resin, 7.0-10.0 parts of an elastic epoxy active diluent, 0.3-3.0 parts of a wetting and dispersing agent, 0.1-0.3 part of an antifoaming agent, 0.1-0.3 part of a defoaming agent, 1.0-2.0 parts of an anti settling agent, 0.1-3.0 parts of an anti sagging agent, 0.5-1.0 part of a silane coupling agent, 2-5 parts of a pigment, 11.0-22.0 parts of glass flake, and 30.0-35.5 parts of feldspar powder; and the curing agent comprises the following components by weight: 95.0-97.0 parts of modified amine and 3-5 parts of a curing accelerator. The paint can play good anticorrosion protection effect on the steel in tidal zone of the sea.

The invention provides a construction method and structure of a steel sheet pile cofferdam in a tidal zone of a sea area. An inner supporting system is installed by utilizing the low tide level, the elevation of the inner supporting system is reduced as much as possible, and then the structural design of the cofferdam is more reasonable; before construction, turnover temporary brackets are machined and hung on wall bodies of pile foundation steel casings to be used for placing and fixing inner ring beams of the cofferdam, and after the fixing brackets are installed, turnover recycling is carried out in time; three combination methods are adopted for cofferdam leaking stoppage aiming at fore shaft structures of steel sheet piles, and then the water stopping effect of the cofferdam under theinfluence of tidal changes of the sea area is ensured; and cofferdam bottom sealing adopts low-water-tide-level water pumping dry sealing, meanwhile, a layer of bamboo plywood is laid on a base, thuspulp overturning during bottom sealing is prevented, the bottom sealing thickness is effectively guaranteed, and the bottom sealing quality is guaranteed.

The invention discloses an inter-tidal zone fish deposition habitat and self-purification underground pipeline ecological breeding system which is mainly composed of an impounding reservoir, a pipeline system, a bait feeding window and a deposition living box. The bait feeding window is connected with the deposition living box through a fish channel, the bottom of the bait feeding window is connected with a clean water draining pipe, and the impounding reservoir is connected with the bait feeding window and the deposition living box through a pipeline water inlet system. The breeding system is improved based on an original patent according to the actual using situation, and a mode that a bred fish dining room is relatively separated from a fish living room is established. An original vertical pipe is replaced by the deposition living box, a natural deposition habitat is provided, and soil self-purification capability is improved. An original managing window is replaced by the bait feeding window, so that the self-purification capability of the system is improved. The utilization efficiency of tide energy is improved. By means of the inter-tidal zone fish deposition habitat and self-purification underground pipeline ecological breeding system, the health and disease resistance capability of the bred fishes can be improved, and the rate of survival and fish quality are improved.

The invention relates to the field of durability of reinforced concrete and aims to provide a marine experimental method of steel reinforcement cage built-in concrete. According to the method, a blocky concrete test piece is placed at a testing position of a sea tidal zone, and the concrete test piece is regularly detected; a steel reinforcement cage with a three-dimensional cage structure is built in the concrete test piece; the selected testing position of the sea tidal zone should have sea tidal action, that is to say, it is ensured that the time for the concrete test piece to be contacted with seawater within a day should be 8-16h. By selecting a sea tidal environment, a real work environment is provided for the test piece. By selecting the concrete test piece, safe service of the test piece in the testing process is guaranteed. By the built-in steel reinforcement cage, an internal material composition environment of reinforced concrete is more truly shown.

The invention discloses a concrete freezing and thawing test device under the coupling action of multiple environmental factors, which can simulate the environmental characteristics of an ocean underwater zone, a tidal zone, a splash zone and a salt mist zone in order to truly reflect the service state of a concrete structure in an ocean environment. The concrete durability test device under the multi-factor coupling action of dry-wet cycle, carbonization, salt mist and freeze-thaw cycle is realized, the structure is simple, the operation is convenient, the movement is flexible and convenient, and basic equipment is provided for systematically and comprehensively carrying out concrete durability research under the multi-environmental factor coupling action of the freeze-thaw cycle and the multi-environmental factor coupling action.

The invention discloses an estuary vein-shaped river network tidal boundary determination method. The estuary vein-shaped river network tidal boundary determination method comprises the following four parts: 1, investigating and collecting river network plane distribution and river geometric characteristics, and determining a river network main stream weighted slope, a weighted river width, a branch weighted slope and a weighted river width; 2, determining a main stream river width influence factor, a slope influence factor, a maximum tidal range of an entrance, a main stream tidal current boundary and a tidal zone boundary; 3, determining a main stream and branch stream intersection section and branch stream entrance section tidal range conversion; and 4, determining a river width influence factor, a slope influence factor, a tidal current boundary and a tidal region boundary of each branch. The determination of the estuary vein-shaped river network tidal boundary can determine the maximum influence range of the tidal current in the main stream and the branch stream, and provides technical support for later scientific treatment.