21 results about "River engineering" patented technology

The invention relates to the field of hydraulic engineering accident early warning, in particular to an embankment and dam bank accident early warning device and application, and the device mainly comprises an early warning line, a loop line, a meter box, a fixing nut, an iron wire, an early warning stone and an alarm; the early-warning stone breaks the early-warning line when the dike or the dam bank root stone is lost or collapsed and moves, and the direct-current power-off alarm is triggered to give an alarm; the system is large in implementation control range, easy and convenient to install, use and maintain and small in investment, can enable a base water pipe unit to find and rescue all the dangerous cases of the water-side project early, and can save investment and labor force; the problems that in the prior art, the control range is small, operation is not easy, and investment and maintenance cost is high, so that a base water pipe unit is unwilling to use or cannot be used are solved; the method can be applied to early warning of embankment slope collapse dangerous cases of embankment engineering and dam bank root stone collapse dangerous cases of river engineering, and can find the dangerous cases as early as possible, make rescue preparation in advance, strive for time for rescuing the dangerous cases as early as possible, fight for early rescue and small rescue, and ensure the safety of flood control engineering.

The invention relates to the technical field of river model experiments, and discloses a refined river model uniform sand adding experiment device, which comprises a sand adding groove, a sand discharging hole, a sand discharging hole, a sand discharging hole, a sand discharging hole and a sand discharging hole, the adjusting part is arranged in the sand adding groove, and the sand adding width of the sand adding groove is adjusted by moving the adjusting part in the sand adding groove; the sand adding assembly comprises a sand adding unit and a moving unit, the moving unit is slidably connected to the top end of the sand adding groove, and the sand adding unit is arranged on the moving unit and used for conveying a water-sand mixture into the sand adding groove; and the control piece is arranged on the sand adding groove and used for controlling the moving unit to reciprocate at the top end of the sand adding groove. Through combination of a mechanical structure and automatic control, uniform distribution of the sand amount in the space in the sand adding process is achieved, the problems that a traditional device is uneven in sand adding, prone to blockage and low in adjusting precision are effectively solved, and the reliability and scientificity of a river model test are remarkably improved.

The utility model relates to a novel integrated wastewater treatment device for underground engineering and river engineering, which comprises two groups of treatment barrels, the two groups of treatment barrels have the same structure and are attached to each other on side surfaces, water inlets of the two groups of treatment barrels are connected through a shunt pipe, fan-shaped grooves matched with the water inlets are arranged at the top ends of the treatment barrels, and fan-shaped plates are slidably connected in the fan-shaped grooves. A drainage hole matched with the water inlet is formed in the fan-shaped plate, the fan-shaped plate is driven by a second motor, and the filtering assembly is detachably connected with the treatment barrel through a bolt. Through mutual cooperation of two groups of treatment barrels, a water inlet, a filtering assembly, a first rotating shaft, a stirring blade, a shunting pipe, a second motor, a fan-shaped groove, a fan-shaped plate and a drainage hole, when a filter screen on the treatment barrels needs to be disassembled, maintained or replaced, only the second motor needs to be driven to drive the fan-shaped plate to rotate, so that the fan-shaped plate blocks the water inlet; therefore, the corresponding treatment barrel stops working, and the other group of treatment barrels can still work normally at the moment.

This invention discloses a method for calculating river ecological flow based on ecological environment distribution, belonging to the field of water conservancy engineering technology. The method includes: dividing the target river segment into multiple river control sections based on river body information and river engineering information; obtaining ecological environment distribution information in the target river segment and dividing the target river segment into multiple ecological control sections based on the ecological environment distribution information; calculating the first ecological flow of each river control section using hydraulic and hydrological methods; calculating the second ecological flow of each ecological control section based on the ecological environment distribution information; and determining the expected ecological flow based on the first and second ecological flows. This invention fully considers the differences in ecological flow among different section types, obtaining a more scientific expected ecological flow; and employs different discharge control methods for the expected ecological flow during normal and sensitive periods, achieving refined management of river ecological flow, facilitating implementation and possessing practicality.

The application discloses a kind of mountain torrent disaster dynamic early warning index determination method based on multi-dimensional element coupling, comprising: collecting the real-time and historical risk hidden danger data of associated rainfall station, water level station, flow station, soil moisture station in dangerous area;Combining flood data to construct HEC-RAS two-dimensional grid rainfall model;Determine the flood inundation range by rainfall model simulation, and determine the flood control capacity of specified object, determine mountain torrent disaster early warning rainfall;Introduce river engineering facility hidden danger, early soil moisture content, regional geological data and the multi-dimensional mountain torrent influencing factor in current hydrological state of river channel and construct corresponding data model;Based on a group of dynamic early warning rainfall and coupling associated multi-dimensional mountain torrent influencing factor data model, used to correct initial early warning rainfall threshold, to form dynamic perception mountain torrent disaster early warning index.The application can form dynamic situation perception early warning rainfall index, realize the transition from static risk to dynamic risk.

The combined gabion retaining wall comprises a vertical gabion area, a slope gabion area and a horizontal gabion area, the horizontal gabion area is arranged on one side of the vertical gabion area, the slope gabion area is arranged above the portion, on one side of the vertical gabion area, of the horizontal gabion area, and the slope gabion area is arranged above the portion, on one side of the vertical gabion area, of the horizontal gabion area. The horizontal gabion area and the vertical gabion area are each composed of gabion net units, each gabion net unit is composed of a rectangular gabion net body and a first stone block, first supporting stand columns are fixed to the corners in the gabion net units, and the slope gabion area is composed of a triangular gabion net body and a second stone block. According to the utility model, a multi-area combined structure is adopted, the impact resistance is strong, the pouring is not easy, the water flow erosion is not easy, the splicing and fixing can be realized, the loosening or displacement is not easy, the integrity is good, and the structure is firm and reliable.

The present application relates to the field of urban river engineering, and more particularly to a water intake and sand setting structure for a limited space urban riverway and a construction method, which can effectively reduce the land occupation area of the river bank on one side of the riverway, comprising the water intake and sand setting structure for the limited space urban riverway, comprising the following steps: a. steel sheet pile construction; b. diversion; c. removal of the original embankment; d. riverway foundation cleaning; e. cross brace steel pipe construction: fixing a support bracket on the original embankment on the other side of the riverway, erecting the free end of the cross brace steel pipe on the support bracket, and reinforcing the gap between the free end of the cross brace steel pipe and the original embankment with a channel steel wedge; f. foundation excavation; g. building pouring; h. backfilling and recovery: backfilling and compacting the excavation space outside the building; i. construction of the water inlet of the water intake structure; j. equipment installation and debugging: installing a valve and performing water intake debugging. The present application is particularly suitable for water intake and sand setting construction of a limited space urban riverway.

The invention relates to the technical field of river surveying and mapping, and discloses a water surveying and mapping instrument for river engineering surveying and mapping and a surveying and mapping method thereof.The water surveying and mapping instrument for river engineering surveying and mapping comprises a surveying and mapping ship body, and the surveying and mapping ship body comprises a middle box, at least two connecting blocks and two symmetrically-arranged ship body shells; the two hull shells are fixedly mounted on the left side and the right side of the middle box through connecting blocks, and each hull shell is of a hollow sealing structure; the top end of the middle box is fixedly connected with a water inlet box with an opening in the top, a flange at the top end of the water inlet box is connected with a water pumping assembly, two guide pipes are integrally formed at the bottom end of the water inlet box, and the two guide pipes communicate with inner cavities of the left hull shell and the right hull shell in a one-to-one correspondence mode. The device has the advantages that the overall weight of the device can be increased according to needs, the stability of the ship body is improved, meanwhile, aquatic plant winding can be effectively prevented in the using process, and overall operation of the device is guaranteed.

The application discloses a river flow blocking cofferdam and belongs to the technical field of river cofferdams. The river flow blocking cofferdam comprises a cofferdam plate and connecting columns and further comprises two mounting columns, a clamping groove for inserting the cofferdam plate, a limiting groove, a limiting mechanism arranged on the sidewall of the cofferdam plate and matched with the limiting groove, and a sealing air bag, and the mounting column is internally provided with a transmission mechanism matched with the limiting mechanism. The limiting mechanism on the cofferdam plate and the limiting groove can limit the vertical direction of the cofferdam plate. Similarly, the limiting mechanism and the limiting groove are disengaged to separate the cofferdam plate from the mounting column, and the mounting and dismounting are simple and convenient, the labor intensity is low, the working efficiency is greatly improved, the cofferdam plate can be reused in subsequent river engineering after being dismounted, a large amount of cost is saved, waste is avoided, and the water conservancy construction is facilitated.

The utility model relates to the technical field of river project flood prevention, and discloses a flood prevention sandbag filling device for Yellow River project flood prevention, which comprises a continuous filling assembly, a filling cloth bag is arranged on the outer wall of the continuous filling assembly, a sealing rope is arranged on the left side of the outer wall of the filling cloth bag, and a fixing hoop is arranged on the right side of the outer wall of the filling cloth bag. An elastic rubber ring is arranged on the portion, located on the left side of the fixing hoop, of the outer wall of the filling cloth bag, the continuous filling assembly comprises a filling pipe, and the continuous filling assembly, the filling cloth bag and a sealing rope are arranged; the filling cloth bag filled with sand is placed at a place needing flood prevention while filling is achieved, when the filling length of the filling cloth bag meets the requirement, filling can be continued by cutting off the filling cloth bag on the left side of the filling pipe and sealing the filling cloth bag through the sealing rope, the sand bag filling efficiency and effect are improved, and the filling time is shortened. And the flood prevention requirement of river engineering is met.

The application provides a river dynamic risk early warning method and system based on multi-source data, and relates to the technical field of big data. Firstly, multi-source river monitoring data is engineering deconstructed to generate a river engineering data deconstruction set containing various data engineering representations and associated attributes. A river dynamic risk topology modeling model is established based on the river engineering data deconstruction set to simulate risk transmission. Historical risk data is calibrated by calling a dynamic adaptation process to generate a topology calibration parameter set. Real-time monitoring data is input to perform real-time simulation deduction of risk transmission. Finally, the deduction result is threshold adapted based on the calibration parameter set, and early warning information containing a risk impact area and transmission path coordinates is generated when the threshold is exceeded. The application can accurately and timely warn of river dynamic risks.

This utility model discloses an adjustable river engineering physical model, belonging to the technical field of river engineering physical model technology. It includes: multiple columns with connecting mechanisms on each column; placement grooves on the columns, with a slidable support seat within each groove, and support rods detachably connected to the support seat; the tops of the support rods are covered with a surface film; and an adjustment mechanism and a limiting mechanism, both located on the support seat. This solution connects the columns using the connecting mechanisms, limits and fixes the support rods using the limiting mechanisms, and adjusts the height of the support seat and support rods using the adjustment mechanism. This allows each support rod to be positioned at the appropriate height according to the model's needs. Unlike current methods that rely on bricks and cement mortar, this design saves significant time and manpower, shortens the overall construction period, and is highly practical. Furthermore, all columns, support rods, and components in this solution are reusable, reducing waste, saving materials, and lowering costs.

The invention provides a small watershed unit testing and dividing device for river engineering, and relates to the technical field of water treatment.The small watershed unit testing and dividing device comprises a filtering mechanism, a sampling mechanism is arranged on one side of the filtering mechanism, and a second support is arranged on one side of the sampling mechanism; the filtering mechanism comprises a first bracket, a servo motor, a rotating shaft, a first belt wheel, a second belt wheel, a first stirrer and a second stirrer, the rotating shaft is arranged, and the servo motor is started to drive the second belt wheel and a screw rod to rotate, so that filter residues in a filtering pipe are discharged to one side of a guide groove; stirring impellers in the first sampling tank and the second sampling tank can be driven to rotate at the same time to stir river water in the tank bodies, so that the sampling mechanism can sample the river water conveniently, and treatment and division are facilitated.

This invention discloses a pile foundation anti-buoyancy structure and construction method for a revetment above a shield tunnel, solving the problem of easy uplift and floating of the existing shield tunnel during excavation and unloading, which affects structural safety and service life. The structure includes a tunnel with a river channel excavated above it, the tunnel and the river channel intersecting each other. A U-shaped revetment is constructed on the river section above the tunnel, the revetment being a reinforced concrete structure. The bottom slab of the revetment spans both sides of the tunnel, and pile foundations are arranged in rows parallel to the tunnel on both sides of the bottom surface of the bottom slab. This invention achieves anti-buoyancy of the revetment structure through pile foundations and reduces the risk of lateral displacement of the soil layer above the tunnel after construction disturbance by using anti-lateral displacement frames to separate and solidify the original soil layer. This satisfies the stability requirements of the revetment structure and effectively suppresses the uplift of the existing tunnel below, making it particularly suitable for river engineering projects with oblique crossings, large water level fluctuations, and limited construction space.

The invention discloses full-flow automatic molding equipment for a moving bed river model, which comprises a left high-precision track and a right high-precision track which are parallel to each other and laid on a leveled model sand field, and the length direction of the left high-precision track and the length direction of the right high-precision track are the front-back direction. The left high-precision track and the right high-precision track are provided with movable bed terrain manufacturing equipment and a fine trimming forming device which can move in the front-back direction, the left-right direction and the vertical direction, and the movable bed terrain manufacturing equipment is located on the front side of the fine trimming forming device. The terrain making automation of the moving bed river model can be realized through the control system, the terrain making process can be effectively simplified, and the efficiency is improved; according to the three-dimensional digital elevation information, the elevation precision of terrain making is controlled through automatic equipment, high-precision making of the terrain can be achieved within the whole range of the model, and the precision of terrain making of the moving bed river model is effectively improved.

The application discloses a water conservancy river engineering slope protection structure, which comprises a slope protection and a road on one side of the slope protection, and further comprises an anchoring part, wherein the anchoring part comprises a base stone and first and second anchor rods which are embedded in the interior of each step, the second anchor rod can not only tighten the step surface but also provide axial traction to the first anchor rod; and drainage channels are arranged on both sides of the road along the slope protection inclination direction. The application relates to the technical field of water conservancy facilities, and adopts the cross anchoring structure formed by the first anchor rod and the second anchor rod, a cross channel is preset in the base stone, and the two anchor rods are stably cross-fixed in the interior of the base stone. The cross anchoring structure can effectively resist the vertical pressure from above the slope protection, the water flow thrust parallel to the slope surface and the soil body sliding force. The drainage channels are combined with the drainage pipelines laid on the slope protection, can actively and quickly collect the rainwater and runoff on the surface of the slope protection, and significantly reduce the direct scouring and erosion on the soil of the slope protection.

The utility model discloses a river channel engineering diversion canal anti-seepage structure, relates to the field of canal anti-seepage, solves the problems that an existing anti-seepage structure is provided with a plurality of groups of layers, is tedious in laying operation and is low in practicability, and adopts the following scheme that the river channel anti-seepage structure comprises a water channel, a clamping frame is clamped and embedded on the bottom surface of the inner side of the water channel, and an inner filling layer is filled in the clamping frame; a group of waterproof films are laid on the outer wall of the inner filling layer, and an outer concrete layer is poured on the outer walls of the waterproof films; the clamping frame is a rectangular frame, and the whole clamping frame is a rigid frame; the lower half part of the clamping frame is embedded into a soil layer in the inner side wall of the water channel, and the inner side of the upper half part of the clamping frame is filled with an inner filling layer; according to the watercourse engineering diversion canal anti-seepage structure, the clamping frame on the inner side of the water channel is arranged, so that the watercourse engineering diversion canal anti-seepage structure can be clamped and embedded in the water channel, the inner filling layer is filled in advance, water insulation is achieved through the waterproof film, then outer layer anti-seepage is achieved through laying of the outer concrete layer, the anti-seepage effect is guaranteed, the structure is simple, laying operation steps are few, and meanwhile the anti-seepage effect is good.

The invention discloses a river model section auxiliary manufacturing device, which belongs to the field of environmental engineering, and comprises a first lifting bracket, a second lifting bracket, a river cross rod and a plurality of lifting rods, the first lifting support and the second lifting support are vertically arranged on the two sides of a target river channel respectively, the river cross rod stretches across the river channel and is horizontally arranged, and the two ends of the river cross rod are vertically and detachably connected with the first lifting support and the second lifting support respectively. A plurality of sleeves are fixedly arranged on the river cross rod in parallel, each sleeve is movably sleeved with a lifting rod, and each lifting rod is perpendicular to the river cross rod. According to the device, the multiple lifting rods make contact with the river channel through gravity, the river channel section morphology is recorded through a track formed by the ropes at the ends, the section point taking recording efficiency is greatly improved, and the recording precision of the river channel section morphology is effectively improved; in addition, the device can be repeatedly used, the problems of limitation and resource waste of traditional wood board cutting are solved, cost is low, and the device is suitable for application and popularization.

The utility model relates to the technical field of Yellow River engineering, and discloses an assembly type road protection pier for Yellow River dike engineering. According to the assembly type road protection pier for the Yellow River embankment project, by arranging the first inserting side plates and the second inserting side plates, the road protection pier bodies can be rapidly connected in an inserting mode, so that the enclosure requirements of the Yellow River embankment project at different distances are met, and complex installation technologies and tools are not needed; the assembly type construction can be conveniently carried out on the Yellow River dike project site, the stability and the integrity of the whole road protection pier structure are enhanced by matching with the use of the inserting bolts, so that the road protection pier structure can better bear external force such as impact force of vehicle driving in the Yellow River dike project, and the road safety is guaranteed; by means of the design, standardized and modularized production of the road protection pier can be achieved, the road protection pier bodies of different numbers can be spliced through the first inserting side plates and the second inserting side plates of the unified specification, large-scale production, transportation and later maintenance and replacement are facilitated, and the engineering cost is reduced.

The invention relates to the field of urban river channel engineering, in particular to a water taking and sand setting structure of a limited-space urban river channel and a construction method, and the water taking and sand setting structure can effectively reduce the land occupation area of a river bank on one side of the river channel and comprises the following steps that a, steel plate piles are constructed; b, guiding flow; c, dismantling the original dike; d, cleaning a river channel foundation; e, transverse supporting steel pipe construction: fixing a supporting bracket on the original dike on the other side of the river channel, erecting a free end of the transverse supporting steel pipe on the supporting bracket, and reinforcing a gap between the free end of the transverse supporting steel pipe and the original dike by using a channel steel wedge; f, foundation excavation; g, building pouring; h, backfilling and recovering, wherein backfilling and compacting are conducted on the excavation space outside the building; i, constructing a water inlet of the water taking structure; and j, equipment installation and debugging: installing a valve, and carrying out water taking debugging. The method is particularly suitable for water taking and sand setting construction of urban river channels with limited spaces.

The invention relates to the technical field of bulldozer equipment, in particular to a scraper knife mechanism for a bulldozer. The excavator comprises a bucket, a shoveling and lifting mechanism and a soil retreating mechanism. The two sides of the shoveling and lifting mechanism are connected with the bucket through connecting arms and drive the bucket to overturn around a horizontal shaft. One end of the connecting arm is connected with the shoveling and lifting mechanism, and the other end of the connecting arm is provided with a connecting base in butt joint with a bulldozer. The shoveling and lifting mechanism comprises two sets of second hydraulic rods, two sets of third hydraulic rods, a supporting frame and a supporting base, the hydraulic rod II is hinged between the inner side of the connecting arm and the outer side wall of the bucket; the hydraulic rod III is hinged to the outer side wall of the connecting arm; the supporting frame is fixed to the end of the third hydraulic rod. The supporting base is detachably installed on the bulldozer and rotationally connected with the supporting frame. The soil retreating mechanism is arranged in the bucket and is composed of first hydraulic rods symmetrically installed on the back of the bucket and a push plate with the telescopic end stretching into the bucket to be connected. According to the shovel blade mechanism for the bulldozer, the whole process of soil shoveling, pressing and side slope tamping can be achieved, and the efficient construction requirement of river engineering is met.