3730results about "Barrages/weirs" patented technology

A flood control system, in one aspect involving providing a plurality of substantially rigid containers, at least some of the containers having a top portion, a bottom portion and substantially rigid sidewalls operably connecting the top and bottom portions, the sidewalls being configured to withstand compressive forces between the top portion and the bottom portion; and positioning the plurality of substantially rigid containers at a selected location proximate a body of water, at least some of the substantially rigid containers being positioned at the selected location in a substantially abutting relationship to form a barrier.

A method for improving and utilizing the serious saline-alkaline land at seaside includes such areas as digging ponds to build high-level field, arranging water supplying and draining ditches in the field, planting agricultural crops in the high-level field, and culturing aquatic animals in ponds.

A modular flood control panel is provided having a base and supporting “A”-frame structure. The base locks into the ground, or supporting wall of sandbags, with a series of four adjustable angle stakes per each panel. The invention folds flat when not in use, for storage and for transportation on a truck to flood water areas. The panels are joined together with the use of a five inch wide joining slat that slides down into a channel on each side of each panel.

The invention relates to flood protection comprising a plurality of fillable sacks made of flexible fabric material, with mutually adjacent coupling sides of adjacent sacks being connected to one another in a coupling region and with at least one stiffening structure being associated with each coupling region and extending from the base region of the sacks up to their upper marginal region.

To facilitate construction of an hydraulic dam, a water fillable barrier has a tubular water fillable portion with a tongue projecting from one end. The tongued end of the barrier may abut the tubular sidewall of a second such water fillable barrier with the tongue wrapped around the second barrier and lashed to the first barrier. This arrangement allows the effective construction of a corner in an hydraulic dam. To extend the length of the dam, opposed ends of each of two end-to-end water fillable barriers may be overlapped within a sleeve. When the barriers are then filled with water, they foreshorten. This pulls the overlapping portions back in order to form a high pressure end-to-end abutment between the barriers.

Sediment control devices and systems are provided. The device generally includes a core made up of granular material encased within a puncture resistant fabric, a compressible layer enwrapping the core and a geotextile fabric outer casing. A plurality of such devices provide a system for controlling erosion and sedimentation.

A barrier for reducing erosion along shorelines includes a barrier body formed as a unitary, molded plastic structure. In one embodiment, the barrier body has at least one elongate passage extending through it, between oppositely disposed first and second sides, and an interior reservoir. A port formed into the barrier body communicates with the interior reservoir to facilitate filling the reservoir with material to thereby add weight to the barrier. The barrier further includes at least one anchor formed into a side of the barrier body and associated with the passage to control shrinkage of the barrier body as it is being molded. In another embodiment, a method of making the barrier body includes placing plastic material in a mold, manipulating the mold to distribute the plastic material within the mold and thereby form the barrier body as a unitary piece, and reducing the shrinkage of the molded barrier body with the anchor.

The invention discloses step-type fish passage facilities suitable for the steep slope of a high dam and a control method, and relates to intersection fields of aquatic engineering and hydraulic engineering, in particular to a fishway building suitable for the steep slope of the high dam and a fish passage control method. The fishway in the invention is a step-type fishway building established onthe steep slope of the dam body, which is combined by step-type relays of a plurality of rectangular pools, and also comprises a fish passage monitoring system, a computer automatic control system, anoverflow water fish luring device in the fishway and a fish luring device of inlet and outlet of the fishway. The invention can lead the migratory fish to pass the dam timely without injure of the migratory fish and has the outstanding features of low physical ability consumption, no inverse effects on gonadal development, high automatic degree, relative shorter fishway (steep slope) and saving investment and the like, thus fundamentally changing the defect that other structural types of fishway pass through the high dam.

A device and method for stabilization of beaches and building walls, patios and similar simple structures consisting of blocks with trapezoidal or rectangular shapes which have staking or interlocking means of interconnecting blocks and where the top has an open area allowing fill by slurries of water and sand, gravel or clay and the escape of clarified water during and after filling.

An integrated welder, generator and compressor unit that includes a housing that at least partially contains components of a welder, generator and compressor. An engine, an electric current generator, and an air compressor are at least partially mounted in the housing. The electric current generator is at least partially connected to the engine to be at least partially driven thereby. A drive connector at least partially connects the air compressor to the engine and/or electric current generator. The drive connector includes a gear box that has at least one gear.

A river course ecological treatment system essentially comprises a plurality of ecological biological water purification systems and a plurality of plastic retaining dams disposed along a river course, and at least one damp land ecological water purification system disposed beside the river course. The plastic retaining dams separate the river course into several retaining regions. The ecological biological water purification systems purify the water in the retaining regions by microorganism purification. Afterward, the water purified by the ecological biological water purification systems is introduced into rainwater channels of the at least one damp land ecological water purification system. After being purified by aquatic plants in the at least one damp land ecological water purification system, the water returns to the retaining regions the downstream portion of the river course. Therefore, a river improvement system capable of performing both step-by-step treatment and joint treatment is effectuated.

A liquid crystal display device, a color filter substrate and a protruding structure, and a manufacturing method thereof are provided. The color filter substrate includes a transparent substrate, a black matrix, a plurality of color filters, a plurality of first protruding structures, and a plurality of second protruding structures. The black matrix is disposed on the transparent substrate and exposes part of the transparent substrate for defining a plurality of first openings, a plurality of second openings, and a plurality of pixel regions, wherein the size of each first opening is different from the size of each second opening. In addition, the color filters are disposed in the pixel regions. The first protruding structures and the second protruding structures are disposed on the transparent substrate, wherein the first protruding structures correspond to the first openings respectively and the second protruding structures correspond to the second openings respectively.

The invention discloses a method for checking artificial embankment body and foundation sink. The method comprises that embedding a deep sink detector and a shallow sink detector with hollow tubular structures in each checking layer along one normal line at object position in the artificial embankment body, and leading measuring device or measuring medium into a measuring channel formed by the shallow sink detector and a connecting tube, to measure the position change of the shallow sink detector and measure the height strike of the upper end of the connecting tube to find out the sink of each checking layer.

A levee and barrier module for fluid control and containment is provided including an outer module shell and a module-to-module connection system to attach adjacent outer shells. The outer module shell, being in the general shape of a prism or prism with curvilinear section, is formed by opposing side walls and two opposing end walls, and is configured to enclose or support filler material. The two opposing end walls are configured with end apertures. The outer module shell defines a top aperture and a bottom aperture. When modules are placed end to end in a levee structure the end apertures allow filler material communication horizontally between adjacent modules. The bottom aperture allows filler material communication with the earth below the module. The top aperture allows filler material to be added to the module, as well as visual observation of, and maintenance of, the amount of contained filler material.

Embodiments are described for preventing downward flow of substantial surface water into an underground ventilation duct communicating upwardly to a ground surface opening. The embodiments comprise a support having a top opening and an opening in a lower portion above a floor. The opening in the lower portion is for venting communication with a proximate portion of the ventilation duct. The support supports at least one seat and paired buoyant gate set. The seat is mounted perpendicularly relative to the gate and a portion of a passageway under the seat for fluidly communicating beyond such portion to the top opening of the support and to the proximate portion of the ventilation duct. The buoyant gate is positioned lower than the seat and the passageway, is of sufficient size to block the passageway, and is responsive to water rising in the support by floatingly pivoting upwardly until engaging the seat, thereby blocking the passageway. In an embodiment, the seat of at least one set is mounted under the top opening spaced from one of the opposing sides a horizontal distance nominally equal to a fraction applied to a length for the particular opening, the fraction having the numerator 1 and a denominator which is the sum of 1 plus the number of seat and gate sets, and the buoyant gate has a seat engagement height nominally equal to the same fraction applied to the same opening length.

The flood vent of the invention provides a frame configured for installation in a concrete block foundation wall in place of a single block. The frame includes an angularly oriented window. A gate is pivotally mounted at an upper end thereof within the frame to rest against the window, causing the gate to reside at an angle and be held closed by gravity. A float is mounted to the gate and positioned at rest below the lower edge of the frame to cause the gate to pivot toward an open position when flood water rises to a level approaching the wall opening.

An automatic-locking water conservancy gate device capable of dissipating heat quickly comprises a gate plate (1) and a gate plate lifting driving device (21), wherein the gate plate lifting driving device (21) comprises a housing (20) fixed on a bearing base; an upper fixing rib (18), a middle fixing rib (19) and a bottom fixing surface are arranged in the housing (20); a gate plate lifting driving motor (16) is born on the upper fixing rib (18); the gate plate lifting driving motor (16) is in power connection with the upper end of a gate plate lifting driving lead screw (17); the gate plate lifting driving lead screw (17) penetrates through the through holes in the upper fixing rib (18), the middle fixing rib (19) and the bottom fixing surface; the gate plate lifting driving lead screw (17) is in thread fit with a threaded hole in the gate plate (1).

An erosion control system and method wherein a fabric filter bag is embedded with and/or filled with a flocculating polymer and is positioned on a sloping soil surface to dam and pond water flowing thereacross for settling of the particles in the water, and as the ponding water seeps into the bag the colloidal particles will be filtered or agglomerated for settling. The water then passes through and out of the bag and is further subjected to agglomeration and filtering by a skirt of filter material also impregnated with flocculating polymer, said skirt being anchored to the bag or stacked to maintain the position adjacent and downslope from the bag.

An irrigation gate system installed in a channel (such as a ditch or canal) for controlling the flow of water through the channel maintaining a desired level of water upstream from the irrigation gate system or for controlling water flow downstream from the irrigation gate system. The irrigation gate system includes a gate which is maintained in a closed position for preventing water flow past the gate or alternatively, in one of a plurality of open positions for allowing desired amounts of water in the channel to flow past the gate. The gate is vertically hingedly connected to a pipe shaft supported by a frame installed in the channel. A gate actuator moves the gate between its various positions upon receiving signals from an electronic programmable controller which in turn may receive signals from a variety of sources.

A method to fabricate a silicon-on-nothing device on a silicon substrate is provided. The disclosed silicon-on-nothing device is fabricated on an isolated floating silicon active area, thus completely isolated from the silicon substrate by an air gap. The isolated floating silicon active area is fabricated on a silicon germanium layer with a surrounding isolation trench. A plurality of anchors is then fabricated to anchor the silicon active area to the silicon substrate before selectively etching the silicon germanium layer to form the air gap. Isolation trench fill and planarization complete the formation of the isolated floating silicon active area. The silicon-on-nothing device on the isolated floating silicon active area can be polysilicon gate or metal gate and with or without raised source and drain regions.

The invention relates to high head, large unit width flood energy dissipation by hydraulic jump technique, in particular to a high-low bucket energy dissipation pool of hydraulic jump, wherein the invention adopts a proper contraction angle in the plane of the high bucket, and outside wall of the high bucket does not contract, after the flood of high bucket contracts, the distribution in the vertical section of flooding is changed, when the downstream water level is high, part of the flood entering the pool is properly raised to reduce flooding degree and to fully exert the characteristics of submerged jets, thereby lengthening the distance between the flood to the pool bottom plate, weakening surface periodic wave, improving effects, reducing tail bucket water surface fluctuating, and avoiding vertical-axis eddy at the backward-facing step boundary wall.

The invention discloses a movable water retaining dam for a water conservancy landscape. The movable water retaining dam comprises a dam foundation, movable dam faces, bottom rotating shafts, foundation embedded fixing seats, hydraulic cylinders, hydraulic pump stations and water retaining height control devices, wherein the foundation embedded fixing seats are mounted on the dam foundation; the bottom rotating shafts are mounted on the foundation embedded fixing seats; the movable dam faces are fixedly connected to the bottom rotating shafts; the movable dam faces can rotate around the bottom rotating shafts; one end of each hydraulic cylinder is movably connected with the back side of one movable dam face, and the other end of each hydraulic cylinder is movably connected with one foundation embedded fixing seat; and the hydraulic cylinders are connected with the hydraulic pump stations which are connected with the water retaining height control devices. The movable water retaining dam is reasonable in structure, firm, reliable and high in flood impact resistance, is not influenced by floating impurities, is not limited by width of a river, is not prone to retain the floating impurities, can be controlled automatically and can be ascended and descended rapidly, the dam can be descended for draining off floodwater without a battery, and flood control safety is realized.

The construction method of rockfill-concrete dam is one dam constructing method as the combination of concrete construction technology and rockfill dam construction technology and adopting one kind of concrete material with good flowability and high material separating resistance. The construction method of the present invention includes using un-sieved or initially sieved rockfill, introducing coarse aggregate in rockfill dam constructing process, pre-embedding grouting pipes to parts to form concrete, grouting concrete via the grouting pipes to void in rockfill to from the rockfill-concrete dam. With rockfill as aggregate can reduce cement consumption, lower cost, speed construction, lower the hydration heat of concrete, simplify process and reduce construction links.

A water-fillable flood control device is provided that consists of a waterproof bag with a friction causing outer surface and having a mouth that can be closed with a waterproof seal after filling the bag with water. The bag can be filled by one person at a flood site using a filling/form sleeve and locally-available water. It is not necessary to fill the bag with sand, or add chemicals. The friction causing surface may be achieved by any means or method so long as the purpose is to hold the device in place for facilitating the stacking of a plurality of devices on top of each other to form a stable water control structure without the need for external supports.

Described is a system and system by which application programs provide data to auxiliary display device (that is associated with a main computer system) for display, including at times when the main computer system is powered down. The cache maintains the user data in association with structured navigational information, to allow navigation within the data via the structure. When online, the main computer system prepares the data cache from program data in combination with navigational information, and transfers the cache to an offline medium such as auxiliary storage in firmware. The cache may be arranged as a tree structure, such that navigation commands result in output according to data in the tree. Other events such as time-based events can change the auxiliary device output.

Disclosed herein is an apparatus for filtering sewage and wastewater. The filtering apparatus has a vertical structure including a filtering belt comprising a filter bag or a filter mesh that can filter out fine impurities. For this, the filtering apparatus includes a drive motor that receives power to drive the apparatus, an upper drive drum that is operated by the drive motor, a lower rotating drum that is interlocked with the upper drive drum, and a filtering belt that is wound and rotated around the upper drive drum and the lower rotating drum. The filtering apparatus cannot only filter out fine impurities less than from 0.1 mm to 0.2 mm but also separate earth and sand, unlike conventional filtering apparatuses that cannot conduct them. Furthermore, because the filtering apparatus can be placed upright or inclined at a predetermined angle, it can be used in a water inlet passage that is 4 m to 5 m underground, and impurities filtered out from water can be transferred to a height higher than 10 m above ground.

In order to provide a durable loading dock shelter with an effective seal, the dock shelter is provided with a face panel that is relatively lightweight and firm, yet moveable for sealing against vehicles of various size and position. The face panel can be used as a side curtain or a head curtain. To provide the face panel with durability while minimizing its weight, the face panel is thermoformed of twin sheets of plastic to provide a durable outer shell with a hollow interior. In some embodiments, the face panel is moveable by virtue of an integral living hinge that connects the face panel to a generally stationary support panel.

The invention discloses a full-section stepped energy dissipater, which consists of stepped energy dissipaters arranged on a bottom slab of a spillway or a floor discharge tunnel and stepped energy dissipater arranged on two side walls of the spillway or the floor discharge tunnel, namely the bottom slab and the two side walls of the spillway or the floor discharge tunnel are provided with the stepped energy dissipaters. The full-section stepped energy dissipater has the following energy dissipation mechanism that: when waterflow passes through steps on the bottom slab, the falling, the whirling and the shearing action of the waterflow appear, and the air above the water surface is involved into a water body; steps on the side walls sharpen the turbulent motion of the waterflow, which improves energy dissipation effect and ensures that the waterflow constantly contracts and expands along the way to form cavities at both sides so that the airflow enters the surfaces of the steps of the bottom from the cavities to cause the waterflow of the whole section to be fully aerated, thereby avoiding adverse effects such as cavitation erosion and so on.

An organic light emitting display device and a driving method for the same is provided. The device includes a data driver that can cause a display of an image having a uniform luminance. The data driver includes a ramp pulse generating part for generating a ramp pulse. The data driver also includes a current digital-to-analog converting part for generating a data current using data provided to the data driver. The data driver also includes a current control part for providing the ramp pulse to data lines coupled to a pixel and comparing a pixel current from the pixel with the data current to control providing of the ramp pulse to the data lines. The pixel current corresponds to the ramp pulse.

Disclosed is a water treatment system (10) including:(a) a water permeable wall portion (12) defining a water treatment portion (18) of a waterway to be treated; and(b) a treating portion (20) retained in a desired position relative to the permeable wall portion (12) by retaining means (26) wherein water to be treated permeates through said wall portion (12), said retaining means (26) and said treating portion (20) for removing pollutants contained therein prior to discharge of water from the system (10).