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405 results about "Levee" patented technology

A levee (/ˈlɛvi/), dike, dyke, embankment, floodbank or stopbank is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low-lying coastlines.

Ecological slope protection vegetation building blocks as well as making method and construction process

The present invention relates to a building block of ecological slope protection vegetation, a fabrication method and a construction technique. The building block is composed of a growing bed body, a lath crib, planting troughs, a vegetation layer and a plant, the lath crib wraps the circumference of the growing bed body, the upper plane of the growing bed body is lower than the upper plane of the lath crib and concave, the vegetation layer is formed on the growing bed body, which matches the inner walls of the sectional area of the lath crib to form an integral building block, and more than one planting troughs are arranged on and run through the growing bed body. The design of the present invention is scientific, the structure is reasonable, the restoration of water ecology can reduce the operating cost, environment is improved, ecology is reinstated, harmonious natural beauty is enhanced, and the present invention is suitable for the nidification of small living creatures and the habitation and the survival of aquatic fishes, so that the cutting-off continuity of water and land regions is restored. The present invention is widely applied to channel slope protection, levee slopes, roadsides, airports, parks, public lands, household lawns, sports grounds, etc. The present invention is suitable for cold regions, damp regions, warm and damp intermediate zone, etc.

River critical levee section washing safety analysis and bank slope stability judgment method

The invention discloses a river critical levee section washing safety analysis and bank slope stability judgment method. The method comprises the steps of 1, generating a data set used for constructing a two-dimensional river channel water/sand model; 2, setting model calculation parameters and definite solution conditions according to river reach parameters in the research area, and constructing a two-dimensional water/sand numerical simulation model of the research area; step 3, setting various working conditions according to sand coming conditions under different flood conditions, simulating river water/sand transportation and river bed silt flushing of a research area by utilizing a two-dimensional water/sand numerical model, analyzing dangerous river beds before and after flood based on a simulation result, and respectively calculating river dangerous bank slope river bed depth flushing distance and river lateral erosion distance; and step 4, constructing a finite element model for seepage-stability analysis of the bank slope of the critical levee section, and quantitatively researching the relationship between each factor and the bank slope stability safety coefficient. According to the method, the stability of the riverway dangerous work bank slope under the action of water flow flushing is studied, and a quantitative means is provided for critical levee section stability evaluation.

Magnetic label and method for monitoring and positioning

The invention discloses a magnetic label and method for monitoring and positioning, and belongs to the technical field of measurement. The invention is characterized in that the magnetic label comprises a magnetic coil, a director, an RF (Radio Frequency) communication controller, an antenna, a power supply and an epoxy compound sealing material, wherein the magnetic coil, the RF communication controller, the antenna and the power supply are located in the middle of the director, and the whole body is sealed with the epoxy compound sealing material; the magnetic torque of the magnetic coil keeps constant through the director, and the unknown number of the magnetic label is only a position parameter; and the magnetic field excited by the magnetic label is measured by a magnetic gradiometer, the position of the magnetic label is obtained through a magnetic field gradient tensor sum optimization algorithm, and the monitoring and positioning of the magnetic label are realized. The invention has the effects and benefits as follows: the monitoring and positioning in environments such as an underwater part, sludge, a soil layer deep part and the like are realized; and the magnetic label has the advantages of simplicity in operation, high test accuracy and stable performance, can be used for deformation monitoring of rock soil structures of side slopes, embankments and the like, and also can be widely applied to washing monitoring of huge engineering structures of reservoir dams, river levees and the like.

Prefabricated levee apparatus and system

A levee apparatus and system for impeding and controlling the flow of fluids, primarily the flow of water as experienced in a flood or storm surge consisting of a light weight concrete structure with reinforcing steel rebar depending on the application. It is constructed from prefabricated sections with the tongue and groove ends designed to fit together which, when used in conjunction with a rubber gasket, will produce a water tight seal. The structure would be hollow with an opening along the unprotected face to provide a location for the surge water to enter. The structure would have flap-gates on the protected side and on the unprotected side. This would allow flood waters from the protected side to push open the flap-gate and exit the protected side based on the pressure equalization of the flood waters. Once inside the structure any water would then drain from the structure through the flap-gate on the unprotected side when the surge water diminishes. The structure could be placed simply on top of the existing soils or anchored in place to prevent potential changes in alignment. Two main modifications to this design include utilization of a rubberized base which would allow the top portion of the structure to rise into position, and the adjustment of the flap-gate position to change the use of the structure from solely a flood protection system to a retention control system.

Pressure casting non-sand concrete pile

InactiveCN101294385AGuarantee flood control abilityImprove anti-seepage performanceBulkheads/pilesSleeve valvePressure casting
A pressure grouting non-fines concrete pile belongs to the construction engineering field, and is particularly applicable to strengthening river levees and reinforcing road-widening lap joints. The pressure grouting non-fines concrete pile comprises a borehole (1), a grouting pipe (2), a sleeve valve pipe (3), graded gravels or crushed stones (4) and a grouting body (5), wherein, the sleeve valve pipe (3) is composed of a sleeve valve pipe grout stop piston (6), a sleeve valve pipe grout injecting hole (7), a sleeve valve pipe screen tube (8) and a rubber bush (9). During the implementation process, a boring machine is firstly utilized to form the borehole (1) until the design depth of the non-fines concrete pile is reached, the grouting pipe (2) and the sleeve valve pipe (3) with the length of the both equal to the depth of the borehole (1) are inserted, then the graded gravels or the crushed stones (4) are filled in, and finally the grouting pipe (2) is utilized to carry out first grouting, the amount of which is equal to the grout output of the borehole (1); after the grout is initially condensed, the sleeve valve pipe (3) is utilized for carrying out secondary middle-high pressure grouting, the pressure of which is 1 to 5 MPa, and the grouting flow rate is 10 to 60 L/min. The pressure grouting non-fines concrete pile has the advantages that the design is reasonable, the construction is simple, the bearing capacity is high, and the anti-seepage capacity of the reinforced section is improved.

No-trestle water bridge pile foundation and bearing platform construction method and cofferdam thereof

The invention discloses a no-trestle water bridge pile foundation and bearing platform construction method and a cofferdam thereof, and belongs to the field of construction of water bridges. The cofferdam comprises a locking port steel pipe pile and a cofferdam surrounded by purlins thereof; no diagonal brace is arranged in the cofferdam; an opening structure is arranged on one side, near a bank, of the cofferdam, and includes an opening formed in the side, near the blank of the cofferdam, and a section of aisle arranged in the opening and communicated with the opening; the aisle consists of a locking port steel pipe pile and purlins thereof; and a construction road extending from a shore levee extends to reach the opening of the cofferdam via the aisle. The construction method comprises the following steps: steel plate piles are beaten in place; a mud surface in the cofferdam is leveled; steel protection cylinders are beaten to finish construction of drilling piles; soil in the cofferdam is dig to a designed mud surface elevation, and pile heads are drilled out; bottom sealing concrete is cast according to a designed thickness; after the bottom sealing concrete reaches the strength, a bearing platform is cast; and after the bearing platform reaches the strength, the cofferdam is dismounted. The method can largely save the construction cost and improve the construction efficiency.

Retaining wall construction system for preventing tsunamis and flood damages and construction method thereof

InactiveUS20130149037A1Effectively preventing potential damageCost of constructionBarrages/weirsDamsStable stateHybrid type
The present invention pertains to a retaining wall construction system for preventing tsunamis and flood damages and a construction method thereof. The retaining wall construction system for preventing tsunamis and flood damages includes hexagonal multi-layered interlocking blocks (10) built in a plurality of lines for forming a retaining wall, wherein S-shaped connection sections (11) are formed on an outer periphery for a plurality of interlocking blocks, and hexagonal multi-layered interlocking blocks (10), which are adjacent to each other and different from each other, are connected to each other via the S-shaped connection sections (11) to be movable in the vertical direction. According to the present invention above, it is possible to semi-permanently maintain a stable state at the basic lower portions of the structure as the vertically interlocked blocks lower like a shutter to block caved-in spaces when the basic portions of the structure are caved in by waves or flowing water. The S-shaped connection sections, clearances between the connection sections, and the structure of the retaining wall in a stepped type, a type in which the center of gravity moves downward, a buttress type, a flowerbed type, a column hybrid type or the like are geometrically and structurally very stable so that damages due to natural disasters such as floods, tsunamis, earthquakes or the like may be effectively prevented. In addition, the blocks can simply be inserted and the wide spaces of the main bodies of the blocks may be used as planting spaces by filling gravel, sand, and soil in the spaces, so that not only construction time and costs can be largely reduced but also environment-friendly levees and retaining walls can be constructed.

River channel reinforced gabion and water-permeable geotextile composite ecological slope protection retaining wall construction method

The invention discloses a river channel reinforced gabion and water-permeable geotextile composite ecological slope protection retaining wall construction method. The method includes the steps of completing the prediction and control of the road elevation according to drawings and benchmarks provided by a construction unit; manufacturing engineering components meeting the requirements through gabions by means of hexagon twin twisted steel wire mesh which is formed by weaving low-carbon steel wire ropes where anti-corrosion processing is conducted; assembling the gabions; installing the gabions; conducting stone filling; stranding cover plates; conducting crushed stone backfilling; laying geo-grids; laying water-permeable geotextile; pressing filled earth, wherein damage to the geo-grids should be avoided in the filled earth pressing process. The method can be widely applied to the slope protection retaining wall construction of water conservation, shipping, beaches, slope protection, river levees, channels, municipal facilities, roads, railways, culverts, gardens, parks, real estate communities and the like, and the method is large in compressive strength, good in antifreeze performance, economical, attractive in appearance, safe and reliable.

Method for building riprap levee island wall of offshore artificial island by large box barge

The invention discloses a method for building riprap levee island wall of an offshore artificial island by a large box barge, comprising the following steps: (1) remodeling a large box barge; (2) dragging the large box barge to an area for building the riprap levee island wall of the offshore artificial island to facilitate the longitudinal centerline to be vertical to the axis of the riprap levee island wall of the offshore artificial island; (3) respectively parking transport ships at the both sides of the large box barge to unload stone material to the large box barge; (4) with excavators and waggon tremie riprap construction stone material piling platform of the large box barge provided, facilitating the large box barge to be driven to the stone piling platform by steel butt straps to riprap and deal with the slopes to build a section of riprap levee, repeating the process so as to facilitate the riprap levee island wall to move forward section by section to be formed and finally completed. In the invention, the on-water construction of the island wall of the offshore artificial island is transformed into onshore advance, thus reducing influence of stormy weather on the construction and greatly accelerating construction speed of the artificial island.

Process for treating valley silt soft foundation in mountain area by explosion method

The invention discloses a process for treating a valley silt soft foundation in a mountain area by an explosion method. The process comprises the steps as follows: firstly, according to the thickness and the basic physical mechanical parameters of silt, carrying out blasting design to obtain parameters of blasting charge quality, throwing-filling footage quantity and blasting charge buried depth; secondly, building a guide levee on a perpendicular roadbed axis, circularly constructing based on the guide levee according to the steps of throwing and filling, arranging explosives, detonating and complementally filling until the soft foundation treatment is completed; and lastly, carrying out quality detection in different periods. Compared with the traditional soft foundation treatment method, the process has the advantages of better economic property and better treatment effect, and can accelerate the construction progress at the same time. A field test shows that compared with a gravel pile method, the cost can be saved by about 15% and the working period is shortened by about 5%. In addition, the silt mixing phenomenon in the technology for treating the soft foundation by the explosion method in the absence of water is remarkably reduced and the bearing capacity is higher.
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