64 results about "Coastal engineering" patented technology

The invention discloses a geotechnical model test system based on macro-micro mechanics as well as an elaboration test method. The test system analyzes and processes shot digital images in a model test box in real time through two analysis systems in a computer. The test method organically integrates an indoor model test, field soil observation analysis of foundation soil, partial microscopic observation analysis, numerical value simulation of microscopic mechanics and continuous-discrete coupled numerical value simulation. The invention is suitable for the test research of geotechnical engineering such as building engineering, road engineering, bridge engineering, harbor engineering, river-coast engineering and coastal engineering, can solve common engineering problems and can upgrade the understanding level and the research level to important key problems, such as the influence on extreme environmental conditions of key project construction projects and engineering catastrophes, andthe like.

The present invention relates to devices and methods for tracking movement in a marine environment. At least one tracking device that is adapted to be deployed on a surface of the water, wherein the tracking device is capable of moving along the same trajectory of a desired object. Data from the tracking devices are received by at least one satellite, transmitted to a database, and used to determine the forecasted trajectory of the desired object. All data collected from deployed tracking devices may be integrated into a spatial data repository for analysis and reporting using GIS and associated information technologies, thereby allowing for more accurate decision-making and asset deployment during a fluid spill or similar marine contamination event. The present invention also allows for the collection and modeling of accurate localized sea current data, which may assist with marine and coastal engineering works such as shoreline protection and port dredging.

The invention discloses a gravel filtering device for coastal engineering construction. The gravel filtering device for the coastal engineering construction comprises an impurity storing box and a washing and filtering mechanism, and further comprises a gravel guiding mechanism, wherein gravel is stirred and washed through the washing and filtering mechanism, small particles existing in the graveland soil attached to the surface of the gravel can effectively enter the impurity storing box through sieve gaps in the bottom of a filter cylinder, meanwhile, a scraping block is attached to a rotating rod, the scraping block can stir the rotating rod to rotate in a stirring process, impurities are effectively prevented from blocking in the sieve gaps, in the filtering process, a push-pull dooron the impurity storing box can be opened at any time to discharge the impurities in the impurity storing box, meanwhile, dust generated in the filtering process of the gravel can be effectively reduced, after a cover plate is opened, the gravel can be discharged from a discharging opening through a discharging plate on a stirring pipe, a gravel guiding mechanism is arranged, the gravel dischargedfrom the filter cylinder can be directly conveyed to a conveying device conveniently, and a baffle is arranged on a conveying belt, so that the conveying efficiency of the gravel guiding mechanism isimproved.

The invention relates to a seawall and a construction method thereof, and aims to provide a seawall with better stability, taking a large-diameter cast-in-site concrete cylindrical pile as a basis, and a construction method of the seawall, wherein the upper part of the seawall is connected with a caisson platform. The pile bearing caisson seawall comprises the caisson platform positioned on a submarine soft soil foundation in coastal engineering, wherein, the bottom of the caisson platform is equipped with at least two rows of erected bearing piles which are used for bearing the platform and are embedded into sea bottom; and the sides of the caisson platform near sea and land are equipped with the erected bearing piles which are embedded into the sea bottom as well as transverse suppression layers positioned on the top ends of the bearing piles. The seawall and the construction method have the beneficial effects that the bearing capacity and stability of the seawall are improved; and in addition, the caisson platform can be utilized as a construction platform so as to construct according to an overland construction method after construction machinery is placed on the platform, which reduces offshore ship operation and lowers construction cost, thus being capable of being widely applied to coastal dam construction engineering.

A high sand content bore simulation testing method relates to a testing method for simulating high sand content bore in a river mouth model test, particularly relates to a method and a device for simulating the bore head sand content during the bore and belongs to the field of coastal engineering model tests. A test water tank device for simulating the high sand content bore and a method for utilizing the device to conduct simulation test are further provided. The test water tank device comprises a variable water head high level water tank, a test water tank and an underground reservoir. A tail door and the variable water head high level water tank are utilized to adjust the flowing speed of water in the water tank to reach the preset value, a fast gate is closed, the water flow is stopped and generates the bore in the water tank, the bore upwells upstream from the gate and drives sand in a sand tank, and vertical sand distribution in the water tank is measured at the moment to obtain the natural-state vertical sand distribution characteristics. The device and the method specially used for simulating the vertical sand distribution of the bore are provided. The sand distribution obtained by the method is similar to the natural sand distribution. The device meets the law of similarity.

The invention discloses an anti-crack corrosion-resistant concrete admixture as well as preparation and an application of the anti-crack corrosion-resistant concrete admixture. The anti-crack corrosion-resistant concrete admixture is prepared from the following raw materials by weight: 1.5-2.5 parts of fiber comprising a polypropylene fiber, a polyethylene fiber and a carbon fiber, 90-95 parts of an active mineral additive comprising a coal ash, metakaolin, slag and silica fume, and 3.5-7.5 parts of a reactive activator comprising nano dysprosium oxide, nano lanthanum oxide and nano yttrium oxide, the anti-crack corrosion-resistant concrete admixture is doped in a concrete, the weight ratio of a cement in the concrete is 10-40%, a proper amount of a polycarboxylic acid water reducer is added, and the specific doping amount is determined according to the coastal engineering. The pore structure of the concrete is thinned, the corrosion of harmful ions is reduced, the long-term strength of the concrete is guaranteed to improve stably, the carbon dioxide is absorbed, the peaceability, the compactness, the corrosion resistance, the early strength and the anti-cracking ability of the concrete are improved, the service life of the coastal engineering is prolonged, and the economic, social and ecological effects are better.

Improved breakwater construction blocks and interlocking shear key blocks for use in constructing diverse systems and works, in broad fields of use including, but not limited to, coastal engineering: river, stream and torrent control, bulkhead designed projects, scour control, check dams, permeable and impermeable groins-both river and ocean structures and other hydraulic works including marinas.

The invention relates to an underwater geotextile fabric laying method and belongs to a coastal engineering building construction technology. The underwater geotextile fabric laying method the following steps of: surveying geological geomorphology and hydrometeorology conditions; planning to determine a laying position; carrying out GPS (Global Positioning System) positioning, intelligent control, basal plane obstacle clearing, error correction, splicing and shipping of underwater geotextile fabrics, sand bag in-place placement and drum put-down; fixing an anchor position; carrying out moving spreading, bag pressing and riprapping; and dumping broken stones. By one set of laying operation method, a construction process flow and a safety quality guarantee system, the difficult problem of laying the underwater geotextile fabrics is well solved, floating drifting of the geotextile fabrics is effectively prevented and the geotextile fabrics are smoothly laid without being wrinkled. Stable construction and all-weather normal operation can be ensured in the environment with a water depth of 2 to 20m, a flow rate of 0 to 3m/s, a tidal range of less than or equal to 9m, a wind force of less than or equal to 7 grades and wave power of less than or equal to 2 grades. Moreover, the underwater geotextile fabric laying method has the characteristics of accuracy for positioning, small error, high quality, low cost and high efficiency.

The invention belongs to the field of resisting wave to reduce disaster and the field of coastal engineering, and in particular relates to a deformable combined floating wave-resisting device. The deformable combined floating wave-resisting device comprises a pin-connected column base, a gravity plate, a fence plate, an anchor chain and a high holding power anchor. The wave-resisting device is entirely provided with buoyancy by the fence plate; the gravity plate is used for reducing the center-of-gravity position of the device to improve the stability; the whole wave-resisting device forms a rectangular box facing incoming waves by connecting the gravity plate and the fence plate together; the wave-resisting device is characterized by moving and deforming along with the incoming waves under the action of the incoming waves, and in that the movement and the deformation of the wave-resisting device induce surf and turbulence so that the wave energy is dissipated, and therefore, the effects of resisting and eliminating waves are achieved. The shape of the wave facing surface of the deformable combined floating wave-resisting device can be adaptively adjusted along with the height of the waves and the magnitude of energy, and therefore, good wave elimination effect can be achieved, the deformable combined floating wave-resisting device is easy to mount and move, and has relatively high reliability and also low influence on the beauty of the shoreline.

The invention relates to a seawall and a construction method thereof. Reinforced concrete caissons are sequentially connected, tubular piles penetrate through the reinforced concrete caissons, and accordingly a foundation of the seawall is formed. The caisson type high-pile seawall comprises a caisson platform positioned on a seabed soft soil foundation in coastal engineering, carrying piles which penetrate through the caisson platform and are implanted into a seabed are arranged on the caisson platform, and pressing layers are arranged on a sea-adjacent side and a land-adjacent side of the caisson platform. The caisson type high-pile seawall and the construction method thereof have the advantages that carrying capacity and stability of the seawall are improved, the caisson platform can be used as a construction platform, construction can be carried out according to a land construction method after construction machinery is placed on the caisson platform, offshore operation of ships is reduced, construction cost is lowered, and the construction method can be widely applied to constructing costal seawalls.

The invention discloses a method for promoting siltation and sand consolidation on a beach by utilizing natural energy, and belongs to a coastal reclamation technology in coastal engineering. The method comprises the following steps: investigation, geological survey, design planning, damming and sluice-building, siltation promotion and water drainage, and mud conveying and sand consolidation. The method is characterized in that sediment deposition is promoted by utilizing natural energy of tides according to the principle of adjusting measures to local conditions and making the best use of the circumstances. Clearance electric energy of a plurality of pieces of power generating equipment is collected to establish a natural energy power station for supplying power to sediment conveying equipment. Sand consolidation is carried out by adopting methods of filling geotextile bags, mixing with a dehydrating hardening agent and biologically hardening. The method has the characteristics of adopting a multi-point formation process, being gradually expanded, being green and low-carbon, being energy-saving and environmentally-friendly, and being remarkable in benefit. Moreover, materials are saved, energy consumption is reduced and labor power is saved, so that the method is green and environmentally-friendly, and is safe and reliable. The method is used for dissipating waves, promoting siltation, consolidating sand and protecting a slope, so that irregular accumulation of sediments is improved, beach elevation is improved, a large number of land resources are obtained, and ecological balance is kept.

The invention discloses a novel submerged dike crest structure and relates to the technical field of coastal engineering. The novel submerged dike crest structure combining flexible plant wave dissipation is composed of a dike crest member unit (1) provided with a flexible plant model and a rigid framework (2) fixed in an anchoring way. The novel submerged dike crest structure combining flexible plant wave dissipation is characterized in that a dike crest main body structure is formed by splicing a regular hexagonal member unit, and the rigid framework supports the dike crest main body structure and is fixed on the submerged dike crest through an anchor chain. Dike crest members and the rigid framework are produced in a prefabricated mode. The novel submerged dike crest structure improves the wave dissipation capability of a submerged dike by combining the good wave dissipation effect and anti-scour characteristic of flexible plants, and improves the ecological environment of water by aid of the ecological benefit of the plant model. The novel submerged dike crest structure combining flexible plant wave dissipation is simple in structural design, low in cost, convenient to construct, easy to repair and capable of remarkably improving the comprehensive technological and economic performance of current or new built submerged dikes.

The invention discloses an orthogonal section method and system for evolution analysis of digital shorelines, which aims to provide a section method which is suitable for different shoreline types and a system which has high degree of automation and reliable calculation results and can effectively show the evolution data information of shorelines. By using the GIS technology and the method of graphics, and by integrating the parameter setting module, section constructing module, calculating and counting module, result showing module, dynamic simulation module and the like to establish the technical scheme, the invention realizes the automation of the whole operation flow. The method and the system of the invention can obviously improve the work efficiency and the operation level, can increase the understandability of the industrial data information, and can provide services for estuarine and coastal engineering, scientific research fields and related decision-making departments.

The invention discloses a fish-shaped steel tube pile which has two modes: one mode is that the side surface of a steel tube pile with a sealed bottom is welded with a plurality of layers of side wing slices from up to down in sequence, the number of the wing slices of each layer is 2-4, and the side surface of a conical tip end of the steel tube pile with the sealed bottom is welded with a tail wing slice; and the other mode is that the side surface of the steel tube pile with an open bottom is welded with a plurality of layers of side wing slices from up to down in sequence, the number of the wing slices of each layer is 2-4, and the side surface of the lower end of the steel tube pile with the open bottom is welded with a layer of tail wing slices, and the number of the tail wing slices is 2-4. In the fish-shaped steel tube pile, when a single pile is applied with torque action, a pile body and the wing slices at a pile end extrude an earth body to generate greater earth body counterforce, so that the torque bearing force of the single pile can be greatly improved. The fish-shaped steel tube pile improves the stressed characteristics of the traditional circular steel tube pile under the torque action, has strong twisting resistance capability, good stability and low refomation cost, can be used in the foundations of various structures in coastal engineering and port engineering.

The invention provides a method for quickly building a dyke on a coral island, and belongs to coastal engineering building construction technologies. The method comprises the steps of terrain reconnaissance, site selection and positioning, foundation treatment, dyke building, sinking and moving observation and operation maintaining. The method for quickly building the dyke on the coral island is characterized by comprising the steps that a foundation is flattened, a canal is dug for irrigation, a gate wharf is mounted in a prefabricated mode, a dyke fixing component is mounted, hydraulic reclamation and pouring are conducted, a river is dug for protecting the dyke, and plants are planted on the inner side of an outer side revetment. The method for quickly building the dyke on the coral island has the advantages of adjusting measures to local conditions, drawing on local resources, and being high in speed, good in quality and high in efficiency. Positive significance is achieved on the aspects of improving dyke quality, improving building speed, improving safety and stability of the dyke and governing the environment.

The invention relates to the technical field of harbor and coastal engineering, in particular to a tsunami wave experiment device with a hydraulic elevator cooperating with PIV to measure and control wave velocity, which comprises a reservoir, a water tank is arranged on one side of the reservoir, and a water channel is arranged at the bottom of the water tank. A wet bed surface, an inclined surface inclining from bottom to top and a dry bed surface are sequentially arranged in the water channel in the tsunami wave propagation direction, a water tank water inlet gate is arranged at an inner end opening of the water channel, a PIV wave height meter is arranged on the upper side of the wet bed surface, and a movable hydraulic lifter is arranged in the water storage pool. A water tank with a water discharging gate facing the water tank is arranged at the upper end of the movable hydraulic lifter. The tsunami wave experiment device can perform analogue simulation of various tsunami waves under the condition of limited change conditions, so that the tsunami waves under different conditions can be simulated while the resource waste is reduced and the cost is saved.

The invention discloses a mangrove forest and submerged breakwater coupled ecological breakwater, and belongs to the field of coastal engineering. The mangrove forest and submerged breakwater coupledecological breakwater is characterized in that a traditional breakwater structure is innovatively coupled with a mangrove forest, a plurality of submerged breakwaters are periodically arranged at intervals, breakwater core stones, dimension stones, backfill soil and protective surfaces are sequentially laid in the breakwaters, and due to the existence of the submerged breakwaters, the vertical elevations of plants are changed in a staggered mode. The mangrove forest is composed of a tree crown, a tree stem and a tree root, the canopy with the most remarkable wave absorbing capacity is lifted,and therefore the effective wave absorbing water level is increased. Under the action of waves and tide, through the mode, the mangrove forest can generate more shearing layers, and the wave-absorbingand flow-resisting effects are enhanced; and the wave absorbing capacity of the submerged breakwater to surface waves can be enhanced through the mangrove forest, and the damage effect of extreme seaconditions such as storm surge on the submerged breakwater is weakened. The mangrove forest and the submerged breakwater are coupled, the occupied area is reduced, a win-win situation is achieved bycombining the wave absorbing characteristics of the mangrove forest and the submerged breakwater, meanwhile, environmental protection is achieved, and economic value and ecological significance are achieved at the same time.

The invention discloses a pipe pocket dam information construction system for estuarine and coastal engineering. The pipe pocket dam information construction system is composed of relevant monitoring equipment and system software. The monitoring equipment is composed of a seepage monitoring device, a horizontal displacement monitoring device, a weather and wave monitoring device, a flowing speed monitoring device, a data transmission device and a computer control device. The system software comprises a basic information setting module, an information real-time collecting module, an information real-time analyzing and processing module, an abnormal information real-time early-warning module and an expert knowledge system module. The constituent part, the connecting and mounting mode and the monitoring data analyzing method of the system are introduced in detail. A system integrating method comprises a complete integrated field conduction method. The pipe pocket dam information construction system for the estuarine and coastal engineering is scientific and reasonable, and convenient to operate, the monitoring method is simple and practical, the factors of dam body instability in the construction process of a bare dam of a estuarine and coastal engineering pipe pocket dam are subjected to all-around monitoring and analyzing, and the condition of dam body instability is reduced maximally.

The invention discloses an underwater geotechnical cloth lapping and pavement method and belongs to the coastal engineering construction technology. Due to the complexity of a soft foundation and the imbalanced bearing force of the foundation, the underwater geotechnical cloth always causes ballast drifting, and especially, the lapped position of two pieces of geotechnical cloth always has disjoint phenomenon; the potential hazards on quality is generated as the mentioned problems cannot be effectively solved in the sequent project. The pavement method provided by the invention comprises a GPS positioning method, an industrial control monitor real-time marking method, a barbed hook steel rope method and a gravel bag method; as the gravel bags are placed accurately, the floating, curling and drifting of the geotechnical cloth are effectively prevented, the underwater geotechnical cloth is paved smoothly and without creases, the edges of the cloth are hooked and linked to one with one another, and the working efficiency and the pavement quality are improved; the difficult problem of lapping the underwater geotechnical cloth is well solved, and the method has the characteristics that the positioning is accurate, the errors are small, the speed is high, and the efficiency is high.

The invention discloses a construction method for a composite pile. The method comprises the following steps: drilling a hole in a preset pile position to a set depth by using a drilling machine, and filling a gripping material into the drilled hole in a pressure filling way; inserting a precast pile into the drilled hole to finish construction of the composite pile, wherein the gripping material consists of one or more of cement, soil cement, cement mortar, fine stone concrete and a cement coal ash mixture meeting a pumping requirement, and the gripping material is in a liquid state; the pressure filling amount of the gripping material is 40-60 percent of the volume of the drilled hole. The construction method for the composite pile disclosed by the invention is easy, convenient and feasible, has the advantages of high quality, low construction cost and short construction period, and is very suitable to be applied to coastal engineering geology which has high underwater level and is soft on the upper part and hard on the lower part.

The invention provides a buoyant pendulum mechanism and oscillating water column type wave power generation device and belongs to the technical field of new energy. According to the power generation device, when waves move towards a coastal plate or retreats, a buoyant pendulum is pushed to swing back and forth, and a piston in a double-action hydraulic cylinder conducts reciprocating motion so asto continuously supply pressure oil to a hydraulic motor generator set; meanwhile, an oscillating water column oscillates up and down, air in an air chamber is pushed to enter an air channel to drivea turbine generator set. When waves act at a low frequency, mainly the oscillating water column pushes the air to pass by the air channel in a reciprocating manner so as to push the turbine power generation device to generate power; when the wave frequency is high, mainly the buoyant pendulum pushes the hydraulic cylinder to provide hydraulic oil for power generation. The buoyant pendulum mechanism and oscillating water column type wave power generation device can be used in combination with a revetment and bulwark and can also be arranged along the coastline for use, so that the utilizationrate of wave energy is improved, the coastal protection function and other functions are also taken into consideration. Due to the above reasons, the buoyant pendulum mechanism and oscillating water column type wave power generation device can be widely applied to the technical fields of coastal engineering, ocean engineering and clean energy.