56 results about "Jetty" patented technology

Methods and systems for remote watercraft identification and mooring facilitation are provided. This technology requires installation of identification tags, such as RFID tags, on watercrafts, which actively or passively emit identification signals conveying watercraft identifiers. When a watercraft arrives to a marina, a watercraft identifier can be acquired by an electronic device from the watercraft. This allows for verifying the watercraft and obtaining relevant watercraft information. A captain of the watercraft can send a mooring inquiry to the electronic device, in response to which the electronic device generates a contract offer with price estimated based on the watercraft identifier and data obtained from the mooring inquiry. The contract offer is electronically sent to the captain for acceptance. If accepted, the electronic device provides to the captain electronic map data with an indication of a dock allocated for mooring.

A combination dock light and bollard serves the purposes of both, without having any sensitive structure projecting out from the bollard into the traffic lane at the loading dock. A lamp assembly within the bollard projects out a window cutout at an upper end of the tubular metal body of the bollard. The lamp assembly rests on a sub-plate welded into the bollard below the cutout. The lamp holder is mounted on compression springs held in place with machine screw, to permit adjustment of the lamp beam direction. A photo eye turns the lamp on when the loading dock door is opened, and off when the dock door is closed.

The present invention discloses a water permeability concrete barrier board and a preparation method thereof, and belongs to the field of hydraulic engineering and marine engineering. According to the water permeability concrete barrier board, the large doping amount fly ash cementing material or composite cementing material is adopted as the substrate, the nanometer bentonite modified potassium magnesium phosphate cement protection reinforcing steel bar or FRP bar is adopted as the reinforcement material, the reinforcing steel bar matching and protection surface parameter is calculated according to the used environment, and the water permeability concrete edge beam, the concrete floor protection plate and the water permeability concrete grid are subjected to cast-in-site and partial or whole precast so as to obtain the water permeability concrete barrier board, wherein the surface roughness is increased, and the water permeability effects of the communication hole between the edge beam and the internal of the grid is provided, such that the levee protection surface structure can be endowed with the water permeability energy dissipation, the maximum forward direction wave pressure intensity can be weakened, and the wave climb performance can be limited; and the 28 day compressive strength of the water permeability concrete of the water permeability concrete barrier board is more than 40 MPa, the levee top wave overtopping of the water permeability concrete barrier board is reduced by 15-25% compared with the ordinary barrier board, and the water permeability concrete barrier board can be used for the protection surface structure of the river bank, the sea bank and the training jetty of the sea bank, wherein the integrated precast barrier board can be reused.

The invention discloses a method for reducing the passage cost of the main channel of an oil wharf, which is characterized in that it includes the following steps: S01, selecting a plurality of qualified avoidance area locations, and establishing a plurality of avoidance area site selection schemes, including not building additional The location selection scheme of the avoidance area, that is, the scheme of leaving the port along the main channel; S02, establish simulation models for each location selection scheme, and output time parameters; S03, conduct economic analysis on each location selection scheme through the output time parameters, and calculate The comprehensive pass cost C of each site selection plan, choose the site selection plan with the lowest comprehensive pass cost C. The present invention provides a method for reducing the passage cost of the main channel of the oil wharf. Through the simulation model and economic analysis, the comprehensive passage cost of each avoidance area site selection scheme is determined, and the scheme with the lowest comprehensive passage cost is selected as the optimal scheme to maximize Reduce the cost of ship passage and improve the passage capacity of the crude oil port area.

The invention discloses a semi-horn-shaped jetty also serving as a wave-driven power generating device. The semi-horn-shaped jetty comprises an air chamber and a front wall; six partition compartments are arranged inside the jetty; one partition compartment is used as an oscillatory air chamber, and the other partition compartments are still used as stone compartments; the rear part of the air chamber is provided with an air outlet communicating with atmosphere; a shrinkable water channel is arranged in front of a water inlet of the air chamber; and the front wall is a horn-shaped fairing curve. The semi-horn-shaped jetty disclosed by the invention can prevent and eliminate waves and can also be used for generating electricity by utilizing wave energy; by arranging the oscillatory air chamber structure inside the jetty, the stability of the jetty structure can be guaranteed, and the construction cost of the jetty can be lowered as well, so the semi-horn-shaped jetty has quite good popularization prospects.

Disclosed is a device that engages and stabilizes a personal watercraft for boarding or exiting. The device simultaneously engages upper surface elements of the watercraft whilst also providing firm land/pier engaged support to the user. A user's weight is able to bear against the inherent buoyancy of the watercraft through a structure rotated downwardly to the watercraft; the rotated structure is hinged and fixed to the land/pier. During entry, the upwardly urging buoyancy of the watercraft stabilizes the watercraft against the downwardly rotated structure while a user steps from the land/pier to the watercraft and fully transfers weight to the watercraft. Exit is the reverse. A method of associated use is also disclosed.

The present invention relates to the field of technology for preventing the bio-fouling of floating equipment in marine environments and other structures, and particularly the use of electronic devices that assist in the cleaning process. It comprises the steps of: Step 1) Identification; Sub-step 1a) Location; Sub-step 1b) Sizing; Step 2) Cleaning; Step 3) Measuring; Step 4) Partitioning; Step 5) Coupling; Step 6) Inspection; and Step 7) Resizing. By means of the aforementioned steps, the method disclosed in the present invention makes it possible to create electric fields that create environmental disturbances capable of inhibiting fouling by sessile organisms within parcels of sea water in dynamic and/or static conditions, on vessels, oil exploration platforms, jetties, etc.

The invention discloses a structure of an underwater ground anchor type marina. The structure comprises floating bodies, flotsam intercepting nets, trash holding buoys, movable adjusting accommodationladders, flexible anti-collision fenders, trash holding buoy storing and releasing devices, anti-wave resistors, foldable supporting rods, underwater concrete anchor beams, fixed pile foundations, floodlight poles, protective barriers, first hinge supports, bollards, cushion caps and second hinge supports. The protective barriers are welded around the tops of the floating bodies, a plurality of floodlight poles are arranged at the tops of the floating bodies, and the flexible anti-collision fenders are mounted around the tops of the floating bodies. The structure of the underwater ground anchor type marina is good in integrality and simple, can be modularly arranged easily according to needs and is convenient to popularize. Visual pollution of the portions, exposed to water, of guide piles is avoided, and the structure is attractive. The overall structure is good in anti-fatigue performance. By designing the flexible protective fenders, the collision force on the body of a yacht during mooring is weakened; and components are free of overwater unnecessary abrasion, the maintenance cost is low, and the economic performance is good.