95 results about "Spur dike" patented technology

The invention discloses a test device and method for simulating the effect of a spur dike on the water flow, and belongs to the field of physical mechanic model tests. The test device is composed of a test module, a light source module, a data collection module and a control module; the test module is composed of foundation test components of the spur dike water flow test; the light source module and the data collection module are attached to the test module; the control module controls other modules of the device; an integrated device is adopted, the particle picture speed measuring technology is designed and introduced for finishing the spur dike water flow test process, and the beneficial effects of being less in manpower consumption, high in efficiency, low in test cost, energy-saving, environment-friendly, suitable for the wider station range, high in test precision and the like are achieved.

The invention discloses a flexible ecological spur dike system. The flexible ecological spur dike system comprises a spur dike body, the spur dike body is connected with a bank on the horizontal plane to form a T shape and comprises an arc jetty head, an arch dike body and a bank-connection dike root in sequential connection, and the bank-connection dike root is connected to the bank through stairs; an included angle formed by the spur dike body and a downstream water flow direction is smaller than 90 degrees; on the longitudinal section, the spur dike body comprises a reinforced earth dike core, a flexible ecological dike slope, dike toe slope pressure parts and a water affinity platform, the flexible ecological dike slope covers the reinforced earth dike core, dike toe portions on two sides of the flexible ecological dike slope are filled by the dike toe slope pressure parts by means of dumping fill, and the water affinity platform is arranged on the top of the flexible ecological dike slope. The flexible ecological dike slope comprises waste tire reinforced planting soil, geogrids and aquatic plants in hierarchical staggered stacking arrangement. By adoption of waste tires for construction of the spur dike system with dual functions of flexibility and ecology, utilization rate of the waste tires is greatly increased, resource regeneration is realized, and construction cost is saved; in addition, conformance to river regimes, decrease of ship collision accident rate and providing of the ecological plant platform are realized.

The invention relates to a diversion ecological spur dike which is a dike-shaped construction with one end connected with a river bank and the other end extending to a river channel, and the diversion ecology spur dike and the river bank form a T shape on a plane. The dike is characterized in that a plurality of layers of diversion plates are arranged at the periphery of the lower part of a dike body, the diversion plates are rigid plates, one side of each diversion plate is fixed on a spur dike body, and two vertical side edges of each diversion plate are connected with side edges of other diversion plates at two sides. Compared with the common spur dike, the diversion ecological spur dike disclosed by the invention has an ecological effect, high stability and the same regulation effect.The diversion plates are beneficial to the attachment and the survival of various water-based creatures, low turbulent fluctuation zones among the diversion plates are beneficial to the retention andthe attachment of the water-based creatures, strong turbulent fluctuation zones provide spaces for fishes to play with water, so that the needs of various biological natures can be met, and the ecological effect is remarkable. The maximum scouring depth and the scouring pit range of a dike head of the dike can be reduced to certain extent, a scouring pit has the tendency of moving facing downstream, and being far away from the direction of the dike head, so that the diversion ecological spur dike is beneficial to the stability of the dike body.

The invention relates to a method for constructing a river and lake levee breach closure with steel sheet piles, which can effectively prevent or control flood of rivers and lakes and reduce disasters. The invention adopts the technical scheme follows: firstly, driving border piles for pier heads at two ends of a burst door, carrying out defending processing on a U-shaped steel plate pile wrappinghead to prevent from enlarging the burst door due to the erosion of water; secondly, setting up a water sports platform floating bridge between every two burst doors, wherein the water sports platform floating bridge is used as a marine piling platform and a traffic channel for transporting steel plate piles; thirdly, constructing a spur dike approaching the river on the upstream of the burst door to selectively remove deposition outwards and reduce the flow and the erosion at a burst; and fourthly, carrying out closure and sealing on the steel plate piles, wherein the top of a cofferdam is supported and defended by a layer of joist steel in a purlin enclosing way, middle longitudinal supports adopt H-steel and distributed at a distance of 5 m, sand pumped from the closured cofferdam is backfilled, and the platform floating bridge is removed. The invention has the advantages of rapid construction speed, high efficiency and quality, wide application range, simple method, easy construction and application, disaster reduction and huge economic and social benefits and is effectively applied to blocking up bursts of rivers and lakes.

The invention relates to a method for ecologically improving the water quality of a water delivery type lake. In the method, frame outlines of water-permeable diversion piers, water-permeable spur dikes and water-permeable diversion walls are respectively formed in the lake; rubbles are arranged outside wood piles; gabions are arranged on the inner sides of the wood piles; gravels are filled among the gabions to form the water-permeable diversion piers, the water-permeable diversion walls and the water-permeable spur dikes; the water-permeable diversion piers are arranged at an inlet of the lake; and the water-permeable spur dikes and the water-permeable diversion walls are continuously staggered along the direction of water current. According to the method, the defects that the engineering quantity is large, the treatment expense is high, secondary pollution is easily caused, the symptoms not the causes are addressed, and the like are overcome; the water-permeable diversion piers, the water-permeable spur dikes, the water-permeable spur dikes and the water-permeable diversion walls are sequentially arranged in the lake, so that a water body in the lake is fully exchanged, the hydraulic retention time is prolonged, the water quality purification is enhanced, the silt settling effect is improved and the flow speed is reduced; the method can be used for creating environments which are more suitable for organisms to live in, enriching species and facilitating the recovery of a biological system; and the method has the advantages of simpleness for operation, convenience for construction, stable functions and low construction cost.

The invention discloses a spur dike with pile foundations, particularly discloses a permeable spur dike with pile foundations, and belongs to the field of design and construction technologies for hydraulic and hydropower engineering buildings. The permeable spur dike with the pile foundations comprises a bank slope, a foundation and a discontinuous reinforcing pile group. The foundation which cannot meet the requirement on erosion resistance is connected with slope toes of the bank slope, the discontinuous reinforcing pile group comprises at least three reinforcing piles, and the various reinforcing piles of the discontinuous reinforcing pile group are vertically arranged in the foundation which cannot meet the requirement on erosion resistance. The permeable spur dike with the pile foundations has the advantages that the foundation which cannot meet the requirement on erosion resistance can be effectively reinforced, and accordingly the erosion resistance of the foundation can be improved.

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 discloses a construction method for impact holing of filling piles in a tidal environment. The construction method for impact holing of the filling piles in the tidal environment comprises the following steps of (a) construction preparation, (b) hole center positioning, (c) drilling machine arrangement, (d) filling pile holing, (e) perpetual steel protective casing wall protection, (f) drilling acceptance inspection, (g) steel bar manufacture and arrangement, (h) filling pile pouring, (i) sweeping and cleaning. Construction periods of filling pile constructions at the Qiantang River with a thick underwater dimension stone layer, spur dikes with thick inner dimension stone layers and a complex geological structure and multiple-riprapping emergency rescue sections can be shortened to a great extent, the permanent protective effect is played on pile foundations by adopting steel-wall casings, and the maintenance cost caused by dam corrosion is reduced. The length of each of drill rods and follow-up castings of a drill machine is increased by adopting an advanced down-hole hammer eccentric drilling-with-casing technology, the perpetual casing protective wall is used, the defects of hole collapse and pile breakage does not exist, a drilling process is improved, and the economic benefit and the technical effect are very considerable.

The invention relates to a method for creating a three-stage flow passage of a meandering riverway in the lower Yellow River, of which the International Patent Classification (IPC) is E02B1 / 00 and E02B3 / 02. The method comprises the following steps of: constructing a control-guide engineering dam which comprises spur dikes made of waterproof earth-rock dams according to the radius of a river bend at the outermost side of a main design riverway; constructing a submerged dam at the chuting section at the tail part of the control-guide engineering dam, wherein the crest elevation is equal to the regulated-flow water level, and the top of the submerged dam is provided with a scour prevention facility; and distributing permeable pile dam at the two sides in a medium-size channel of a straight river section between two bends, wherein the crest elevation of the pile dam is the same as the water level with the local flow of 800m3 / s. The three-stage flow passage created by the method can control the river pattern flow passages in different states of the small-size flow passage, medium-size flow passage and flood period, realize the river stability, enhance the capabilities of releasing flood and transferring sands in the riverway, and prevent the Yellow River levee from avulsion, breakdown and other dangerous situations, thereby achieving the goal of the comprehensive treatment of the riverway in the lower Yellow River.

The invention discloses a spur dike, for inland waterway improvement, not connected with any embankment. The spur dike not connected with any embankment is structurally characterized in that dike root sections of an ordinary spur dike are removed and the length of a dike body is correspondingly reduced. The spur dike not connected with any embankment is composed of two dike heads and a middle dike body section. It is suitable that the plane line type of the spur dike not connected with any embankment is a downward-angled spur dike or a downward-angled spur training dike. The positions of the dike heads can meet requirements for ordinary spur dikes. The width of a near-embankment notch section meets requirements for seabed stability, the longitudinal slope of a near-embankment notch section is properly smaller than that of a dike head of an ordinary spur dike so as to reduce the scouring depths of the dike heads, bottom protection measures need taking if the scouring depths are large, and other dike bodies are as same as dike bodies of the ordinary spur dike in structure. Test results put forwards after waterways of outlet swallow regions of a Xiang River Tongguan beach indicate that compared with a spur dike connected with embankments, the improvement effect is the same, but the length of the dike body is obviously reduced.

The invention discloses a spur dike size determining method suitable for branched reach channel improvement. The spur dike size determining method sequentially comprises the following steps that firstly, a mathematical model between the spur dike size and the branch channel depth and split ratio is built, the branch channel split ratio and channel condition development tendencies before channel improvement are analyzed, and channel improvement targets are determined; secondly, according to the channel improvement targets, the split ratio decrease limit value capable of being borne by a navigation main branch channel after improvement is determined, and therefore the spur dike maximum water blocking area after improvement is determined; thirdly, multiple sets of spur dikes which meet the maximum water blocking area condition and are obtained through combination of different length and height sizes are designed; fourthly, through the mathematical model between the spur dike size and the branch channel depth and split ratio, the amplitude and range of channel depth increase generated by each spur dike after channel improvement is implemented are simulated and calculated; and fifthly, through comparison with the channel improvement targets, the design size, closest to that of the channel improvement targets, of the spur dike is selected out. According to the spur dike size determining method, the influence of the spur dikes on the branch channel split ratio and the like can be estimated in advance, and the channel improvement spur dike size can be determined reasonably.

The invention discloses a river channel ecological restoration method based on a demand of aquatic organisms for hydrological conditions. The river channel ecological restoration method includes the steps that firstly, a river channel is investigated and surveyed, then the location of an ecological restoration area is determined, spur dikes are arranged, a deep pool is formed by dredging, flood plain is constructed, and a planting area of ecological restoration plants is determined. According to the demand of the aquatic organisms for hydrological and habitat conditions, river channel configuration is appropriately transformed, meanwhile suitable aquatic organisms are arranged in different habitat areas, so that a river channel ecosystem is effectively restored, the self purification capacity of the river channel is improved, the biodiversity is restored, and the function of the ecosystem is enhanced. Meanwhile, the river channel ecological restoration method can increase the stabilityof the river embankment without affecting the flood discharge capacity of the river channel, and has excellent effects in improving an ecological function, a landscape function and a social functionof a river.

The invention discloses a particulate body protecting structure for partial scouring of the head of a spur dike or a bridge pier and a construction method thereof. The protecting structure is mainly applied to protection of partial scouring of the head of the spur dike or the bridge pier. For protecting partial scouring of the bridge pier, the structure is an annular particulate body gravel layerlaid on the riverbed around the bridge pier; for protecting partial scouring of the head of the spur dike, the structure is a U-shaped annular particulate body gravel layer laid on the riverbed aroundthe spur dike. The particle size of gravel is multiple times the median size of incipient sediment under the flow condition encountered once twenty years locally. The construction method comprises the steps that 1, the construction position is determined under the tide stabilizing condition; 2, gravels are laid on the designated riverbed in sequence from the downstream part to the upstream part,wherein firstly, gravels of the range of 1.5-2.5 m are laid within the range of 0-6 m around the spur dike and the bridge pier, and then the periphery is paved on the basis of the slope ratio being 1:3. By means of the partial scouring mechanism of the head of the spur dike and the bridge pier, when a scouring pit of the head of the spur dike and the bridge pier is not balanced, the gravel layer of the certain thickness and range is laid around the spur dike and the bridge pier, and therefore partial scouring is well restrained.

The invention discloses an antishock ecological spur dike, and belongs to the technical field of hydraulic engineering and water transportation. The antishock ecological spur dike is a channel improvement structure, and comprises a dam body and a dam head constructed on a cushion layer; antishock steel plates are fixed on the upstream face sides of the dam body and the dam head; and the dam body is provided with multiple holes positioned below a designed water level. The direct scouring of water currents to the dam body can be reduced, so that the stability of the dam body is maintained, and the channel operation and maintenance are facilitated; the plant growth is facilitated; proper habitats can be provided to fishes and demersal organisms; the use level of stones can be reduced; a lot of engineering investments can be saved; and in particular, river currents with more materials and deeper water are more prominent in benefit. In sum, the stability of the dam body can be improved; meanwhile, the surrounding ecological environments of the dam body can be improved; excellent living environments are created for such river organisms as fishes; and growth adhering conditions are provided to plants to meet the demands of engineering construction and environmental protection.

The invention discloses a soil engineering sea sand sludge ecological bag (tube) reinforced retaining wall which comprises a wall body (18), connecting fasteners (24, 25 and 29) and single and double reinforced grids (48). The wall body (18) for supporting a shore (20) is formed by multiple layers of soil engineering sea sand sludge ecological bags (tubes) (16) which are stacked in a layered manner, and each layer comprises a plurality of ecological bags (tubes) (16). The connecting fasteners (24, 25 and 29) are used for connecting every two adjacent ecological bags (tubes) (16) of the wall body (18). The single and double reinforced grids (48) are used for braiding adjacent layers of ecological bags (tubes) (16) for fixing the wall body (18), and / or the whole wall body (18). The soil engineering sea sand sludge ecological bag (tube) reinforced retaining wall is stable in structure, and permanent and solid foundation is laid for spur dike and longitudinal dike structure building of projects such as shores, islands harbors, airports, docks, artificial submerged reefs, island building, construction platform building, small dams, underwater structures, wet land reconstruction, beaching protecting, bulwarks, water defenses and offshore roads and railways.

The invention aims to provide a method for recovering biological diversity in shortage of water. The method comprises the following steps: (1) regulating and controlling the flow of the river in shortage of water through the regulation and control for the gate dams by tilizing the characteristic of multiple gate dams of the river according to the basin water resource, thereby improving the river environment flow; (2) forming various habitat conditions of the river by utilizing the habitat improving technique for trapezoid spur dike, water storage weir and eco-island river; (3) constructing a biological functional group, putting emergent aquatic plants, submerged plants, benthonic animals and fish aquatic animals, constructing the aquatic plant and animal functional groups for recovering the biological diversity, gradually forming an artificial biocenosis of the river lack of water and finally forming an ecological system, thereby recovering the aquatic organism diversity in river in shortage of water. The method provided by the invention is unique, the operation and the application are easy, the effect is excellent and the method is beneficial to the recovery of the aquatic organism diversity in river in shortage of water and has obvious economical and social benefits.

The invention relates to a riverway bypass water purification wetland system. The system comprises a drainage water purification section, a circuitous water purification section and a drainage water purification section which are sequentially communicated, wherein a water outlet of the drainage water purification section is communicated with the main river channel; the drainage water purificationsection comprises a drainage channel communicating a water inlet and the main river channel, gravels laid in the drainage channel, and gravel tumbling weirs and a plurality of first spur dikes which are sequentially distributed in the water flow direction; the first spur dikes are sequentially arranged on the two sides of the drainage channel in a staggered mode to form a snake-mouth-shaped firstpurified water channel, and the heads of the first spur dikes are obliquely arranged in the water flow direction. Sewage of the riverway sequentially flows into the circuitous water purification section and the drainage water purification section to be purified through water flow purified by the drainage water purification section and then flows into the main riverway again, multi-stage circuitousoperation is completed, and the riverway water quality purification effect is improved; and the plurality of first spur dikes form a snake-mouth-shaped first water purification channel with small circuitous water flow, so that the flow velocity can be reduced, the reflux is reduced, the contact time of water and a substrate is prolonged, the water dissolved oxygen is increased, and the river water purification effect is further improved.

The invention discloses a permeable spur dike structure, and belongs to the field of river channel treatment. The permeable spur dike structure comprises a plurality of structure units connected sideby side; each structure unit comprises a concrete base and a plurality of concrete piles; the plurality of concrete piles are uniformly distributed on the same straight line on the concrete base at intervals; the sectional area of the concrete pile is gradually reduced from bottom to top; the bottom of the concrete pile is fixedly connected with the concrete base; the upstream face of the concretepile is an arc-shaped face; a plurality of water permeable holes are formed in the concrete pile; and the distribution density of the water permeable holes is gradually increased from bottom to top.According to the invention, river floaters are effectively prevented from adhering and accumulating on the pile body; the higher the elevation of the spur dike is, the higher the water permeability is, so that the spur dike can automatically adjust the water blocking and flood discharging capacities when the river flow changes; a slow flow area formed by the concrete piles and the concrete base can be used for water grass growth and can also be used for providing places needed for fish to inhabit, bait, breed and develop; and therefore the ecological environment of a river can be effectively improved through the ecological characteristics of the structure.

The invention discloses a self-lifting spur dike. The self-lifting spur dike comprises a spur dike body, a fixing device, an upper cover, a height adjusting device, a water level sensor and a controller; the spur dike body is internally provided with a fixed base, a groove is formed in the top of the fixed base, the height adjusting device is installed in the groove, and the upper cover is arranged at the upper end of the height adjusting device; the fixing device is installed at the lower end of the spur dike body; and the water level sensor is installed on the outer side wall of the spur dike body, and the controller is used for receiving an electric signal sent by the water level sensor and adjusting the height of the height adjusting device according to the electric signal. The heightof the spur dike can be automatically adjusted based on the water level.

The invention discloses a classification mechanism analysis method for finely generalizing the channel engineering ecological environment influence and belongs to the technical field of ecological environment influence evaluation. A set of generalized models are adopted to classify and analyze the ecological environment influence action mechanism of bank protection, bottom protection, dredging andbeach cutting, spur dike and submerged dike projects in construction and operation, analyze an action mechanism and an interference path of the influence of the channel operation period on the ecological environment, and identify the channel engineering construction and operation superposed to accumulate action factors of ecological environment influence, the key effects of representative engineering influence prevention and countermeasures alleviation are developed, a channel engineering ecological environment influence mechanism analysis method and process based on ecological habits and egglaying characteristics are established, a scientific, systematic, comprehensive, effective, fine and generalized mechanism analysis method support is provided for comprehensively, completely, finelyand deeply analyzing a channel engineering ecological environment influence mechanism, proper countermeasure measures for preventing and alleviating adverse effects are further derived, the design andplanning of ecological waterway are carried out, and the scientific, systematic, comprehensive, effective and precise mechanism analysis method support are provided.

The invention discloses an ecological spur dike enhancing exchange of river channel surface water and underground water. The structure applies the frontier achievements in the field of river hyporheiczones. The ecological spur dike includes a semi-permeable dam core and a rock block protecting surface. The ecological spur dike and a river bank are orthogonal, the cross section of a dam body is trapezoidal, an inner layer is the semi-permeable dam core formed by mixing gravels and local river channel substrate, and an outer layer is the rock block protecting surface formed by stacking rock blocks of different diameters. Compared with a conventional spur dike, the spur dike not only reserves functions of river bank protection and sand scouring by flow contraction of a conventional spur dike, but also effectively enhances undercurrent exchange action between the surface water and the underground water, so that an important effect of the hyporheic zones in the aspects of maintaining a river habitat and alleviating water body pollution is brought into full play, and the river channel ecological environment can be effectively repaired. The ecological spur dike is low in cost, requires less labor, is easy to construct, has a stable structure, is not damaged easily, and has a broad application prospect in the fields of river ecological restoration and the like.

The invention relates to a river microhabitat improving system and method. The problem that an existing river habitat is single can be effectively solved. According to the technical scheme, an aquaticplant improving system is formed by aquatic plant growing regions where aquatic plants are grown. The aquatic plant growing regions are arranged at still water areas between all spur dikes of spur dike groups and slopes of all the spur dikes. A water flowing improving system comprises shoals, a gravel group and deep grooves. The shoals are arranged in the still water areas between all the spur dikes of the spur dike groups. The aquatic plant growing regions are arranged on the shoals of the still water areas. The shoals are provided with the corresponding deep grooves which stretch into and penetrate out of the gaps between all the spur dikes of the spur dike groups in a zigzag mode. By means of the river microhabitat improving system and method, the still water areas can be made movable,water circulation is improved, water mobility is also improved, the dissolved oxygen content is increased, planted aquatic plants are subjected to photosynthesis to release oxygen, water can be circulated to increase the oxygen contents of water areas between the spur dike groups, and therefore the water quality is improved, and the scheme is an innovation of river microhabitat improving systemsand methods.

The invention relates to an ecological spur dike for improving aquatic organism habitats of medium and small rivers. Functions of improving the water environmental quality, building the organism habitats and restoring an ecological system can be effectively achieved. According to the technical scheme, an upper layer dike body, a medium layer dike body and a lower layer dike body are built by gabion boxes, and the periphery of the lower layer dike body is reinforced by wooden piles. Botany cultivating grooves are formed in the upper surfaces of the three layers of dike bodies, an ecological blanket is arranged in the botany cultivating groove of the upper layer dike body, emergent aquatic plants are planted on the ecological blanket, submerged plants B suitable for a shallow water environment are planted in the botany cultivating groove of the medium layer dike body, and submerged plants A suitable for a deepwater environment are planted in the botany cultivating groove of the lower layer dike body. According to the ecological spur dike for improving the aquatic organism habitats of the medium and small rivers, nitrogen and phosphorus nutritive salt level in a water body can be obviously reduced, organic content in the water is reduced, so that the water quality purifying effect is improved, the water body landscape is improved, the water body ecological restoration capacity is greatly improved, and innovation the ecological spur dike is achieved.

The invention belongs to the field of riverway water body ecological remediation, and particularly relates to an ecological permeable spur dike system. The ecological permeable spur dike system is composed of a plurality of ecological permeable spur dikes, a gabion grid is placed on the inner side of a spur dike pile column, the inner part of the gabion grid is filled with absorption filling materials, and aquatic plants are planted on the upper layer. According the ecological permeable spur dike system, the function that river banks are not directly washed by incoming flows is achieved, the action that pollutants such as nitrogen and phosphorus in river water are held back and absorbed is achieved, riverway water quality can be improved, conditions are created for growth and inhabitationof aquatic organism, restoration of the riverway partial ecological environment is promoted, and biodiversities are increased.

The invention relates to a tidal river self-purification type ecological restoration combined dam, wherein a water body ecology restoration zone comprises rubber dams, spur dikes, ecological reef groups, fixing tables and organism migration channels, wherein one end of the rubber dam is connected to a river bank through the fixing table, the other end of the rubber dam is connected to one side ofthe organism migration channel through the fixing table, and the spur dikes are arranged at the bent positions of the two sides of a river course, extend into the river course from the river banks andare sequentially arranged from the upstream to the downstream of the river course. According to the invention, by arranging the rubber dams, the reflux of tide water during tidal bulge is avoided, sothat the stable and low-flow-speed water area repairable environment is provided for the aquatic remediation area; by arranging the organism migration channels, the living habits of aquatic organismsare protected; the spur dike has interception and adsorption effects on nitrogen and phosphorus in the river way; and the ecological reef groups provide good hiding and breeding places for underwaterhabitats, planktons, fishes and the like, build and recover the local ecological environment of the river course, and increase the biological diversity.

The invention discloses a revetment diversion method for a high-frequency debris flow. In the revetment diversion method, stacked gabions and vertical reinforcements deeply planted in a gully bed are comprised, and the gabions and the vertical reinforcements are mutually fused to form flexible longitudinal dikes or spur dikes; the flexible longitudinal dikes are arranged in parallel to a flow direction and along a gully bank; the spur dikes stretch into a gully centre and are arranged at an acute angle with the flow direction; the vertical reinforcements are made of micro steel pipe piles or H-shaped steel or rood piles which are arrayed and distributed in a close-triangle shape and along the axial direction of the longitudinal dikes, and are connected with the gabions by virtue of steel strands, and lower burying depths are determined by an erosion depth of the debris flow; and each adjacent spur dikes are distributed at a gully side along the flow direction at a certain interval to form a spur dike group for revetment diversion. The revetment diversion method disclosed by the invention is fast to construct, and high in erosion resistance and geography adaptability; local materials can be used, thus the construction cost is remarkably reduced; the threat of the debris flow on a loose gully bank and gully side protection object is rapidly reduced; and the revetment diversion method is suitable for emergency rescue and safety flood protection working for the high-frequency debris flow in the loosely-piled gully bank and gully side protection object.

The invention discloses an evaluation method for spur dike technical conditions. The evaluation method comprises the following steps: the graded quantitative evaluation is performed on aerial survey results based on acquired spur dike technical condition indexes according to the damage degree, the damage extent and the reflection of the damage on overall structure; D values, E values and R valuesare evaluated by four grades; the four grades are represented by 1-4 in sequence; and finally, evaluation results are recorded in an evaluation record chart. The spur dike technical conditions are quantitatively evaluated based on termly aerial survey inspection of spur dikes, so that the subjectivity of inspectors is reduced, the evaluation result information is comprehensive, and the evaluationresults are more reasonable; needed technical condition indexes are only needed to check, so that the aerial survey work is simplified; for the spur dikes with excellent technical conditions, the description can be simplified, the date input can be reduced and simplified, and the technical condition report can be simplified; and the method also can be used for evaluating the spur dike technical conditions.

The invention discloses a movable permeable pile spur dike and an operation method thereof. The movable permeable pile spur dike comprises a fixed rail, a plurality of moving rails, a plurality of movable permeable piles,a plurality of pressure sensors and flow meters and a control platform, wherein the plurality of movable permeable piles are arranged on the fixed rail and the plurality of movingrails, the plurality of pressure sensors and flow meters are arranged at monitoring points on the outer side walls of the movable permeable piles. The control platform carries out analysis and calculation according to monitoring data from the pressure sensors and the flow meters and adjusts the positions of the moving rails and the movable permeable piles, so that the water flow speeds and the spur dike pressures at the monitoring points are smaller than corresponding flow speed threshold values and pressure threshold values; and therefore, the spur dike permeable rate is within a set range.The movable permeable pile spur dike has the advantages that the movable permeable pile spur dike is suitable for various river conditions, the water permeability of the spur dike and the form of a spur dike body are adjusted in a self-adaptive mode according to the change of the water flow speed and the pressure borne by the dike body, and the stability and the eco-friendly application effect ofthe spur dike are effectively improved.

The invention discloses a small river ecological strengthening construction system, comprising concrete permeable ecological brick slope protection, concrete permeable ecological brick spur dam and unit ecological system cage; the concrete permeable ecological brick slope protection is arranged on both sides of the small river, and The bottom of the river extends to the bank of the small river; there are multiple concrete permeable ecological brick spurs, and they are arranged staggeredly on both sides of the small river along the extension direction of the small river; there are multiple unit ecosystem cages, and they are arranged in small inside the river. The small river ecological strengthening construction system of the present invention can construct the water ecosystem of small rivers in a short period of time, and the constructed ecological system is healthy and complete, has good effect, requires small infrastructure projects, is convenient for maintenance and management, and can be widely promoted.

The invention relates to a method for constructing a deep pool shoal in a slow-flow riverway. The method comprises the following steps that 1, spur dikes are symmetrically arranged the positions nearbanks on the two sides of the riverway; 2, the shoal is arranged between the two spur dikes, and the flow surface of the shoal is of a V-shaped structure, the low end is located in the center, the high ends are located on the two sides, and the high ends are lower than the upper surfaces of the spur dikes, and the space defined by the two sides of the shoal and the spur dikes and the banks is a deep pool. 3, an upstream slope and a downstream slope are arranged on the two sides of the shoal flow surface respectively, the slope of the upstream slope is larger than that of the upstream slope, water flow in the riverway passes through the deep pool, the upstream slope, the shallow flow surface and the downstream slope in sequence. According to the method, the spur dikes and the shoal are usedfor constructing the deep pool shoal in the riverway, the structure is simple, the self-purification capacity of river water can be improved, and the biodiversity in the riverway is increased.