129 results about "Stream bed" patented technology

A field and stream boot for traversing rivers, lakes and stream beds, as well as, outdoor trails which includes; an upper construction with a hard heel, a hard toe, an ankle cup, and a metatarsus rigid panel that provide foot protection from outdoor or underwater terrain and obstacles; and an outsole construction where the outsole has peripheral intermittent tread surrounding a heel array of tungsten carbide spikes overlain with felt with the spike protruding through the felt but not below the peripheral intermittent tread, and surrounding a forefoot array of tungsten carbide spikes overlain with felt with the spikes protruding through the felt but not below the peripheral intermittent tread. The tread may be in the form of lugs, cleats or other gripping ribs or ridges.

The invention relates to a method for constructing a deep pool and a shoal in a straight river channel. In the method, a spur dike is arranged on the left bank side of the straight river channel, a bank slope on the opposite bank of the spur dike is protected by riprap, a diving guide wall is arranged on the left and right banks of the downstream side of the spur dike respectively, the discharge cross section of the river channel is shortened by the spur dike to increase the flow rate of water flow, the bottom of a river bed of a river reach between the diving guide walls on the downstream side of the spur dike is continuously scoured to naturally form the deep pool, and a dead water area or slow flow water area formed between the diving guide wall and the river bank becomes the shoal through long-term deposition. The method has the advantages that: the deep pool is naturally formed and becomes a rest place for aquatic organisms such as fishes and the like, and can become a shelter for the aquatic organisms such as the fishes and the like in a flood period; plants can be planted on the shoal, and the shoal can become an organism habitat different from the deep pool; and the complexity of a river channel structure and water conservation condition diversity can be increased or repaired, and river biodiversity, population composition and rare species conservation are facilitated.

An apparatus for controlling the fluid flow rate from a drainage pond that is common in developed sites where the drainage pond is adapted to supply a degree of fluid capacitance so the runoff does not overflow downstream creek beds and the like. The method and apparatus for controlling the fluid draining from a pond comprises a system for allowing a higher flow that is allowed by regulatory bodies when the pond is at a lower level so the pond drains more quickly when it is at a lower water level. Thus the apparatus allows for a smaller retention pond.

The concentration of adsorbate in the feed gas to an on-stream bed of a cyclical swing adsorption process is monitored and the data processed to predict the time required to complete the on-stream mode of that bed and the purge flow rate and/or other regeneration mode operating condition of the concurrently off-stream bed is modified in response to changes in said predicted time whereby the regeneration mode of the off-steam bed is completed at the same time as the on-stream mode of the concurrent on-stream bed.

The invention relates to a method for forming an ecologically-sewage-purifying compound riverbed wetland system, which is characterized in that: a 30-60mm round gravel, a 12mm medium gravel, a 6mm gravels as well as coarse sands and soil matrixes are filled in the new riverbed from the lower part to the upper part to form a compound riverbed and the top of a shoal of the compound riverbed is positioned below the low water level of the river; the aquatic plants are planted on a soil layer of the shoal of the compound riverbed; the deep grooves and the slopes are protected and built by ecological concrete; thus, the ecological ecologically-sewage-purifying compound riverbed wetland system is formed. The invention has the advantages that a comprehensive treatment system with the plant-the matrix-microorganism is formed, thus enhancing self-purification capability of the river, purifying water body of the river and improving water environmental quality of the river; section form of the riverbed is transformed into a compound riverbed structure in which the shoal and the deep grooves exist simultaneously and the riverbed wetland system is arranged in sinuous way in longitudinal river, which facilitates perch and growth of the aquatic creature and diversification of the river creature; a water distributor is laid to carry out the depth treatment for tail water reaching the standard; the invention has the advantages of simple structure and construction, convenient operation, stable function and low manufacture cost.

The invention discloses a shore type ladder-grade two-dimensional surface flow water filtering riverbed in-situ ecological remediation method. A riverbed space is utilized sufficiently, and the section of the riverbed is designed into functional regions including a central main river tank, a ladder-grade two-dimensional surface flow base bed, a shore water distribution ditch and the like in sequence from inside to outside, and a certain water level gradient is kept. A river vertical hydraulic gradient and an upstream residual position water head are utilized to arrange facilities including a water distribution short dam and the like at an inlet end of a remediation unit; water from a riverbed upstream is distributed to the shore water distribution ditch and the central main river tank according to the ratio. Water distribution weirs are uniformly distributed on the inner side of the water distribution ditch and are used for distributing the river water to the ladder-grade two-dimensional surface flow base bed; the river water flows through the ladder-grade base bed in a manner similar with a transverse flow regime vertical to a central line; the base bed is internally filled with substances and aquatic plants are planted to establish a complete ecological system; meanwhile, water quality is strengthened and purified and a river ecological system is remediated; the water discharged from the base bed is collected to the central main river tank so that the in-situ ecological remediation of a shore type ladder-grade two-dimensional surface flow water filtering riverbed of one unit is finished.

An adaptive system for harvesting hydrokinetic energy from flowing fluid uses a hydrofoil-type vane in a flow-way and an electrical power generator to convert torque generated by the oscillating vane to electrical current. The generator may be electromagnetic or piezoelectric. The system includes a control module that measures the oscillation of the vane, the generated torque, or the characteristics of the generated current, and modifies the resistance of the vane or the conversion of the electrical current in response to changes therein. Some systems include a frame that can be anchored in a body of water. Some systems are portable and provide illumination. Some systems are adapted for use as hiking or camping gear and may be inserted into stream beds or used as walking sticks. Some systems are in-line devices. Some systems are adapted as fishing lures.

The invention relates to a method for improving water quality of a steep-slope river by drop-aeration. The invention comprises the following steps: driving wood piles at two sides of a river channel, backfilling a mixture of crushed stones and soil into a riverbed between a revetment and the piles, covering vegetation to form a plant platform, pouring a trapezoid concrete pier across the river channel to form a overflow weir, and stacking block stones on the overflow weir, wherein the block stones are divided into two sides; the side with higher block stones has small gaps, and the side with lower block stones has large gaps. The invention solves the defects that existing river treatment method results in the loss of deep pools and shoals in natural rivers; primary producers such as various phytoplankton and zooplankton can not reproduce; and benthic and large animals which eat them can not inhabit the river. The invention has low cost, and good permeability, can provide aquatic animals and plants with habitat space, can form a multi-flow changing zone, a multi-organism growing zone, and a multi-fish hideout, has good drop-aeration effect, and can reduce soil loss.

The present invention is an ingenuously designed self locking hinge that is simple to manufacture and can come in a variety of shapes given the application requirements. It has few parts making it cost effect and simple to use. The hinge can easily be opened and closed with one hand while at the same time creating a strong hinge connection. The invention can be used in a number of applications, including use with poles for many common applications such as walking sticks, canes, ski poles and wading staffs used by fly fishermen who need poles to navigate through a stream to avoid holes or rocks in the stream bed. The invention can also be used in conjunction with devices that require a collapsible frame.

The invention discloses a method for constructing river channel data based on a digital elevation model. According to the algorithm, through available DEM data, according to real water system distribution and shape, river channel depth data or section data are combined, ArcGIS, remote sensing image processing system software, hydrological processing software and the like are combined, interpolation calculation is reasonably carried out, and river channel DEM data with smooth and reasonable river bottom elevation and real and continuous river bed boundary shape are constructed. The method has the advantages that the condition that two-dimensional flooding simulation cannot be carried out under the condition that no measured data exists at present is well improved, and data support is provided for subsequent hydrological modeling or hydrodynamic simulation.

The invention discloses a method for improvement and protection of a spur dike channel of a mountain river. The method comprises the steps that (1) the channel improvement water level and the channel improvement line width are determined according to the direction of the channel, the planned line form, the hydrological characteristics of the river, the riverbed components and the erosion and deposition evolution characteristic, and (2) the position and the length of a spur dike are determined according to the shipping hindering characteristic of a dangerous shoal and the improvement line width. The method for improvement and protection of the spur dike channel of the mountain river is characterized by further comprising the steps that (3) a dike body structure is laid, wherein a layer of block shaped like the twisted Chinese character 'Wang' is laid on the downstream slope of a dike body; (4) the bottom of the head of the dike is protected; (5) the bottom of the root of the dike is protected; (6) a bank protection structure is arranged. The method is particularly suitable for improvement and protection of the spur dike channel of the mountain river, the strength of the root of the dike and the strength of the head of the dike can be improved, stronger current impact force can be resisted, the overall service life is prolonged, and the method has the advantages of being capable of preventing sediment accumulation, stabilizing a riverbed, protecting the ecological environment and achieving safe flood discharging.

The invention relates to a straight stream channel low-water meandering ecological construction method and belongs to the technical field of river ecological restoration. The straight stream channel low-water meandering ecological construction method comprises the first step of analyzing the ecological problems of a straight stream channel due to plane straightness and fracture surface regularization, conducting a survey on a straight stream needing to be restored to acquire stream low-water meandering hydrological data and calculating the corresponding design water level and design flow, the second step of calculating the corresponding low-water meandering design river width according to the acquired design water level or the acquired design flow, the third step of calculating the low-water meandering morphological characteristic value according to the acquired the low-water meandering design river width, and the fourth step of determining the lengths of ecological structures stretching into the stream channel according to the river width and enabling the ecological structures to be arranged on the two banks of the straight stream channel in a staggered mode according to certain rules. According to the straight stream channel low-water meandering ecological construction method, the requirements for flood draining safety of the straight stream channel are fully considered, and the ecological transformation method is provided for a large number of existing spaced-limited straight stream channels so that low-water meandering morphology can be formed, diversified water flow and riverbed morphological conditions can be formed gradually, and the low-water river ecological conditions can be improved.

The invention relates to a heavily polluted river habitat reconstruction process, which comprises the following steps of sequentially dividing a heavily polluted river flowing through cities and towns into a primary purification section, an intensified purification section and a stability maintenance section from two ends to the center by region; clearing bottom sediment and reconstructing riverbeds; arranging a water flow slow down device on the primary purification section; arranging a porous ecological wall between the stability maintenance section and the intensified purification section; arranging a plurality of artificial seaweeds sections and a plurality of artificial aeration sections in the intensified purification section; planting variety of submerged plants on the riverbed of the stability maintenance section; when the water level of the stability maintenance section is maintained in 1.3-1.8m, arranging a three-dimensional ecology platform on a water surface, planting floating-leaved plants on the bottom part of a water body, and stocking variety of fishes and snails in the water body. The method provided by the invention is applied to ecological management of common rivers, especially ecological management of tidal waterway city heavily polluted rivers, and is a scientific, effective and environment friendly management method with sustainable development.

The application relates to the technical field of cofferdam construction, in particular to a cofferdam structure and a construction method thereof. The cofferdam structure comprises anchor blocks anda dismountable cofferdam plate. The construction method comprises the steps of constructing the anchor blocks, inserting water retaining pile plates in the direction of flow guiding of a rive, and completing the construction of the dismountable cofferdam plate, wherein the construction is simple and quick. The adjacent water retaining pile plates are in clamping connection through a sealing mortising strip having sealing properties, the cofferdam structure is simple and convenient to disassemble and assemble and good in sealing properties, and improvement of the leakage situation of the cofferdam is facilitated. A first sealing strip in the shape of a down trapezoid in the sealing mortising strip further improves the sealing properties in a mortise, the water seepage resistance of the water retaining pile plates can be improved, and the water draining state in a creek bed repair construction process can be improved. Water guiding plates can share impact of low-level part of the river for the water retaining pile plates, and the water flowing through the water guiding plates can be transported towards the water guiding direction, so that the impact force brought by the river can bereduced. The building and constructing, and disassembling construction steps of the cofferdam structure disclosed by the application can be simple and quick, and the construction period of the cofferdam can be effectively shortened.

The invention discloses a tide-sensing river channel flood prevention and moisture prevention shoreline making method, and belongs to the technical field of flood prevention and moisture prevention foundation water conservancy facilities. The method is based on actually measured river channel terrain and hydrology sediment materials, a river channel physical model and a mathematical model are established, the mathematical model comprises a two-dimensional mathematical model and a three-dimensional mathematical model, and the river channel physical model, the two-dimensional mathematical modeland the three-dimensional mathematical model are carrying out digital-to-analogue coupling; and according to hydrodynamic characteristics under different regional tidal currents and different workingconditions, water force of a river channel field, change rule of flow velocity gradient, distribution rule a water power curve, erosion and silting process of a riverbed and a form of ultimate erosionand silting are under the long-time action of the river flood and the outer sea boundary at different frequencies are achieved, and a shoreline conforming to a natural river tidal flooding intersection movement rule is formulated. The tide-sensing river channel flood prevention and moisture prevention shoreline making method has the advantages that the defect that in traditional shoreline making,the flood power function is considered independently and the long-term effect of the tidal power is ignored are broken through, and the adaptability of a combined action area river channel shorelineof a runoff and a tide is enhanced.

The invention belongs to the technical field of hydropower station flood discharge, and discloses a three-dimensional numerical simulation method for a downstream scouring process of a flood dischargegate of a hydropower station when a hydropower station is stuck, which comprises the following steps: establishing a bed load sediment transport rate formula based on water flow randomness and bed sand distribution randomness based on riverbed sediment particle motion basic characteristics; based on the UDF macro function, conducting secondary development on Fluent software, extracting the bed surface node water flow shearing force, and calculating the bed surface sediment transport rate; and according to a riverbed scouring and silting balance principle, converting the change of the sedimenttransport rate between the nodes into the change of the node elevation along with time, so that the moving boundary grid nodes are controlled to move, and three-dimensional numerical simulation in the scouring process of the scouring pit is realized. According to model actual measurement data verification, a simulation result is basically matched with an actual measurement value; in the forming process of the scouring pit, the shear stress distribution of the bed surface is continuously changed along with the scouring deformation of the bed surface, namely the shear stress of the bottom wallsurface of the scouring pit at the initial scouring stage is larger, and the shear stress of the upstream slope wall surface in the scouring pit at the middle and later scouring stages is larger.

The invention discloses an underground comprehensive pipe gallery river-cross section river water guide structure and a construction method thereof. The structure comprises two cofferdams, two rows ofconcrete pouring piles, two top beams and a plurality of waterflow guide pipelines. The cofferdams are arranged on riverbeds on two sides of a pipe gallery. The two rows of concrete pouring piles arearranged at the position of the pipe gallery. The top beams are arranged at the pile tops of the two rows of concrete pouring piles. The waterflow guide pipelines comprise a pair of steel structure platforms, a plurality of supporting pillars, a plurality of waterflow guide pipes and a pair of waterflow drainage pipes. The steel structure platforms are fixed to the top beams. The supporting pillars are fixed to the riverbeds. The waterflow drainage pipes are pre-embedded in the cofferdams. The waterflow guide pipelines are positioned on the steel structure platforms and the supporting pillars. The waterflow drainage pipes communicate with the waterflow guide pipes. Drainage ditches are excavated in the riverbeds among the cofferdams and the concrete pouring piles. A river is truncated bythe cofferdams, the waterflow guide pipes are erected between the cofferdams, and therefore the safe and reliable construction environment is provided for the pipe gallery; and river water guide toolscan be reused, and therefore the construction cost is lowered.

The coupling of a sewer treatment station to a treatment plant for the flocculation and flotation of water streams and the insertion of said treatment plant for the flocculation and flotation of water streams into a water treatment station. The sewer treatment station is installed upstream from the flocculation and flotation treatment station, in such a way that the outlet of said station is directly connected to the inlet of the flocculation and flotation treatment plant disposed next to the stream bed or next to and interconnected thereto by means of a varying flow canal. The insertion has dynamic introduction of the process of treatment for the flocculation and flotation of fluid beds, all in a closed canal, wherein the flow of secondary streams (E) is dynamically and continuously submitted to flocculation and flotation techniques in an induced flow canal (FE) in the water treatment station.

The invention discloses a protective structure for preventing and controlling a riverway concave bank from being eroded. The protective structure comprises an overflow weir formed through double-layerinlaying, a protective arm and dam abutments formed by inlaying large dimension stones. The relatively higher protective arm is arranged on the concave bank side prone to erosion of a riverway, and the relatively low overflow weir is arranged at the center of the riverway, so that river water is centralized in the overflow weir and a protection-free convex bank to flow through a river bend, flowing of the river water close to the concave bank is retarded, the shear stress at the concave bank is reduced, silt at the concave bank is prevented from being eroded by the river water, meanwhile water level rise before the overflow weir is quick, a scour pit is formed behind the weir, pressure gradient is formed on a river bed due to water level difference, and surface water and underground waterexchange is promoted. Compared with a traditional method, the protective structure is low in cost and long in service life, can also prevent the concave bank from being eroded, promotes surface waterand underground water exchange, thus improves the self-cleaning capacity of the riverway, relieves riverway pollution and has a wide application prospect in the fields such as channel improvement ofriverway and mountainous area drainage basins.

The invention provides an ecological restoration system of water complement type river channel. The ecological restoration system of the water complement type river channel aims to overcome the shortcomings that a virtuous circle cannot be formed due to biological invasion, deterioration of water quality and the like since diverse ecological systems cannot be established in complement water type river channels in the prior art, and based on an existing water complement type river channel, an ecological river bed is constructed. The ecological restoration system includes the water complement type river channel, and an upstream water complement opening, an entrance deep pool, rock block groups, shoal and deep pool groups, an overflow dam, wooden pile groups, fish nests and biological channels, wherein the upstream complement water opening, the entrance deep pool, the rock block groups, the shoal and deep pool groups, the overflow dam, the wooden pile groups, the fish nests and the biological channels are arranged in the river channel; the entrance deep pool is arranged on the downstream part of the upstream complement water opening, the rock block groups are arranged on the downstream part of the entrance deep pool, the shoal and deep pool groups, the overflow dam, the wooden pile groups, the fish nests and the biological channels are arranged along the river channel in a distributed mode; and trees are planted on river channel slope protection, and water plants are planted in shoals. According to the ecological restoration system of the water complement type river channel, the biodiversity is restored, the water environment is improved, and using in the water complement type river channel is suitable.

The invention discloses a method for crossing a riverway and laying cables by using a horizontal directional drilling technology. The method comprises the following steps: S1, calculating a top elevation of a first steel pipe and the top elevation of a second steel pipe according to the lowest navigation water level, a planned channel water depth, riverbed undercutting thickness, a riverbed bottomelevation and a pre-buried depth, and selecting the minimum value between the two values as the minimum value of the actual steel pipe top elevation; S2, selecting steel pipes for laying cables, thenumber of the steel pipes, MPP pipes arranged in the steel pipes and the number of the MPP pipes, and determining a crossing route of the horizontal directional drill according to the minimum value ofthe actual top elevation of the steel pipes, a curvature radius of the steel pipes, a steel pipe crossing stratum, and a buried point and an unearthed point of the horizontal directional drill; S3, calculating a traction force and side pressure during cable laying according to the crossing route, and judging whether the traction force and the side pressure meet construction requirements or not; and S4, forming a guide hole in the riverway by using the horizontal directional drill, dragging back the steel pipes, penetrating the MPP pipes and laying the cables, and penetrating the riverway by using the steel pipes after accurate parameter calculation to complete laying of the cables between the transformer substations on the two banks of the riverway. Engineering cost is low, a constructionperiod is short and implementation difficulty is easy.

The invention provides a method for gathering and utilizing seasonal flood. A multi-stage utilization method is constructed according to the width of a riverbed, the flood discharge, and an area to be utilized. The method is implemented in six aspects of blocking, shunting, mitigating, dredging, silting and utilizing, and comprises the following steps corresponding to the six aspects: flood is blocked; a diversion port is formed on the basis of blocking; flood impact is mitigated after multiple blocking and shunting; impact mitigated flood is dredged according to local conditions to a place with high utilization potential, that is, an impounding reservoir and a sediment deposition place for sediment in flood; and after the flood, not only water is stored, and a piece of land is formed to be used for planting. After the flood, water is gathered and stored, sediment deposits to form the land to be used for planting, the utilization of the gathered water and depositing sediment after the seasonal flood is effectively realized, the problems of ecological environment and water shortage in planting are solved, and the method is especially suitable for arid and semi-arid lands with seasonal flood.

The invention provides a fish breeding method in flowing water of a river. The method comprises: selecting a river; selecting one or more sections of riverways with stable water flows and abundant water quantities from the river; constructing a diversion canal along the river bank in the selected riverway, wherein the diversion canal is communicated with upstream river water in the riverway; constructing fish ponds, at one side close to the river, in the diversion canal, wherein the quantity of the fish ponds is not small than one and the fish ponds are sequentially arranged along the river bank, and the bottom heights of the fish ponds are greater than the average water level height at the relatively low side of the reiverbed; and constructing water supplying and draining facilities for the fish ponds. According to the method provided by the invention, a barrage is used for storing water to breed fishes, and the water quantity of the river is uniform and abundant; the diversion canal draws water from the barrage and supplies water sources for the fish ponds through water diversion pipes; the water diversion pipes can be rotatably adjusted; when water is needed to be drawn, the orifice faces the water coming direction, water in the diversion canal is poured into the fish ponds from the water diversion pipes; when water is is not needed to be drawn, the orifice is moved upward. A drain pipe in the bottom of an anti-flood wall is used for discharging water in the fish ponds out of the riverway when water is needed to be changed.

The invention discloses a river flow-separating purification beautification treatment system and method. A damming system comprises a hydraulic turnover plate gate which is arranged at the bottom of a riverbed, and a water retaining breast wall which is used in cooperation with the hydraulic turnover plate gate, wherein a flow drainage channel is formed between the hydraulic turnover plate gate and the water retaining breast wall, and the hydraulic turnover plate gate automatically adjusts the degree of opening of the flow drainage channel along with changes of the river discharge to have control over the discharged flow, and keeps the water level of the damming system stable. A flow separating system is arranged on the lower section of the damming system, a reinforced concrete cover plate is arranged on the tops of quay walls of a river channel, the cover plate covers the whole river channel, river water on the upper layer of the damming system flows through the cover plate, river water on the lower layer of the damming system is separated to flow through the river channel formed below the cover plate, sewage tanks are built on the lower portion, close to the quay walls on the two banks, of the river channel arranged below the cover plate, and urban sewage, flowing into the river channel, on the two banks can be guided to the downstream portion, and can flow into a sewage treatment system. According to the river flow-separating purification beautification treatment system and method, land can be saved, the visual field can be beautified, construction cost can be reduced, and management is convenient.

The invention relates to the technical field of water conservancy projects, and specifically relates to a mainstream swing type wave oscillating mechanism based river type classifying method. The method is characterized in that the mainstream swing type wave spreading process in a riverbed medium is analyzed on the basis of rock mass power transmission swing type wave theory so as to obtain a riverbed power response model (seeing the description) in the mainstream swing type wave spreading process; a map of mainstream swing type wave acceleration evolution with distance of a researching riversection is drawn based on the abovementioned response model, and the river section is researched and analyzed based on the evolution map; if the mainstream swing type wave acceleration in the distancebelow an inlet in the evolution map oscillates, and the oscillating scape gradually extends from upstream to downstream, thus the researching river section can be determined as a non-barrier river section, otherwise, the researching river section is determined as a barrier river section. The river section river type classifying method is simple and efficient; different river sections can be rapidly accurately divided; theory foundation is conveniently supplied to river sections of different types in the river section treatment process; a proper treatment method is selected; and the river section treatment effect is improved.

The invention belongs to the field of water conservancy projects and environmental protection projects, and relates to a tunnel type multi-outlet nature-like fish way. A fish way body is connected to a downstream riverbed and the water area of an upstream reservoir and is arranged in a mountain beside a power station plant; a fish way inlet of the fish way body is formed in the riverbed in the downstream direction of the power station plant, and two or more fish way outlets of the fish way body are formed in the reservoir in the upstream direction of the power station plant and are located at different heights. The tunnel type multi-outlet nature-like fish way can adapt to the geographical condition that riverbeds are narrow and mountains on the two sides of river ways are high and steep or the limiting condition that the water levels of reservoirs in the upstream direction fall or rise rapidly or water-passing water levels are large in amplitude, the shortcomings that the construction workload of fish ways is large, the design and construction difficulty is high and the cost is high are overcome, and the influence to the terrestrial organisms on the mountains on the two sides of the river ways is reduced as much as possible.