515results about "Marine site engineering" patented technology

The invention discloses a cascade reservoir flood control water level combined application scheduling method and scheduling system, and relates to the technical field of cascade reservoir scheduling, and the method comprises the following steps: dividing into a plurality of sub-regions according to an administrative region, determining a sub-reservoir corresponding to each sub-region, and collecting the rainfall and historical flood discharge data; analyzing the water storage capacity of each sub-region at the moment corresponding to the historical data to form a training data set; constructing a flood season flood discharge prediction model, and obtaining the target flood discharge flowing into the sub-reservoir by using the prediction model; analyzing the water level change in the flood season according to the target flood discharge amount, and judging whether scheduling is needed; and if scheduling is needed, determining a drainage flow combination of each sub-reservoir, setting a constraint condition, and performing optimization through a multi-target genetic algorithm to obtain an optimal drainage flow scheme meeting constraints. According to the scheme, the scientificity, the accuracy and the intelligent level of combined dispatching of the cascade reservoirs are remarkably improved.

The utility model discloses a pressure hose expansion sealing waterproof and flood control assembly which comprises a base, a guardrail, waterproof cloth and a pressure hose. The base is pre-embedded under the ground, a semicircular clamping groove or a large semicircular clamping groove is formed in the base, and an opening of the semicircular clamping groove or the large semicircular clamping groove is exposed out of the ground; the guardrail is detachably or fixedly installed on the rear side of the upstream face of the base and extends upwards. The waterproof cloth is laid before flood comes, the bottom of the waterproof cloth is fixed in the semicircular clamping groove or the large semicircular clamping groove of the base, and the other part of the waterproof cloth is laid and fixed on the guardrail; the pressure hose is laid in the semicircular clamping groove or the large semicircular clamping groove of the base before flood comes, the pressure hose expands after a medium is injected into the pressure hose, and the bottom of the waterproof cloth is tightly fixed in the semicircular clamping groove or the large semicircular clamping groove of the base. According to the utility model, the pressure hose expands after being filled with a medium, the waterproof cloth is fixed on the base, and the function of effectively blocking flowing water leakage is achieved.

An artificial reef module for marine ecosystem restoration comprises a base having a lattice configuration and one or more poles projecting upwardly from the base and configured to support one or more artificial inhabitation units e.g., made by 3D printing, extrusion, pultrusion, or mold specific clay. The module can be configured with one or more of the artificial inhabitation units mounted on the poles, where each inhabitation unit may comprise a plurality of holes formed therein.

The utility model relates to a nondestructive testing device for a concrete diaphragm wall of a water conservancy project. Comprising a geological radar and further comprises a mounting frame and a sweeping assembly, the geological radar is fixedly connected to the mounting frame, the sweeping assembly is fixedly connected to the mounting frame, the sweeping assembly is located on the lower side of the geological radar, and the sweeping assembly is used for sweeping impurities on the concrete diaphragm wall. When an operator moves the geological radar and detects the wall surface of the concrete anti-seepage wall, the cleaning assembly cleans impurities on the concrete anti-seepage wall, the possibility that the impurities such as soil and moss adhere to the antenna of the geological radar can be reduced, the possibility that interference signals or artifacts appear in radar images can be reduced, and the detection accuracy of the concrete anti-seepage wall is improved. And the possibility that the accuracy and the reliability of the detection result are influenced can be reduced.

The present disclosure relates to shaped cementitious compositions that comprise a substrate for aquatic flora and / or fauna attachment; methods for providing a substrate for aquatic flora and / or fauna attachment comprising depositing a shaped cementitious composition into a body of water; and methods for making a shaped cementitious composition. The shaped cementitious composition is formed from a pourable cementitious mixture comprising: (a) a pozzolan comprising a natural pozzolan and / or a manmade pozzolan; (b) MgO and / or Mg(OH)2; (c) an aqueous solution comprising one or more accelerants; and (d) at least one aggregate. In some cases, the MgO and / or Mg(OH)2 of (b) is included in the aqueous solution of (c). And, in various cases, the manmade pozzolan comprises a slag.

The invention provides a special geomembrane for a pumped storage power station and a preparation method of the special geomembrane, and relates to the technical field of geomembrane materials. The special geomembrane for the pumped storage power station comprises an outer layer, a middle layer and an inner layer which are sequentially connected, the outer layer is prepared from the following raw materials: 55 to 65 percent of MDPE, 33 to 40 percent of HDPE, 1 to 5 percent of antioxidant master batch and 1 to 7 percent of double-resistant color master batch; the middle layer is prepared from the following raw materials: 15 to 25 percent of HDPE (High-Density Polyethylene), 35 to 45 percent of LLDPE (Linear Low Density Polyethylene), 25 to 35 percent of POE (Polyolefin Elastomer), 1 to 5 percent of antioxidant master batch and 3 to 7 percent of double-resistant color master batch; the inner layer is prepared from the following raw materials: 35 to 45 percent of MDPE, 40 to 50 percent of LLDPE, 8 to 12 percent of POE, 1 to 5 percent of antioxidant master batch and 3 to 7 percent of double-resistant color master batch. The strength, the fatigue resistance and the aging resistance are balanced on the whole, so that the long-term operation requirement of the pumped storage power station is met.

To provide a slope leveling member capable of improving the efficiency of slope leveling work.SOLUTION: A slope leveling member 10 is attached to a lower end of a leveling weight 4 for leveling a plane of an underwater foundation rubble mound 6. A lower end of the slope leveling member 10 is provided with a plurality of lower end faces 11B to 15B formed in a stepped pattern according to an inclination angle of a slope 6B of the foundation rubble mound 6. The normal direction of the plurality of lower end faces 11B to 15B is the same as a falling direction A of the leveling weight 4.SELECTED DRAWING: Figure 1

The application of "a unit type tidal wetland restoration method based on a target" belongs to the technical field of wetland ecosystem restoration methods. The unit type tidal wetland restoration method based on a target comprises the following steps: (1) determining a target; (2) constructing an ecological unit on the tidal wetland to be restored through microtopographic modification; (3) applying biochar materials and salt-resistant ecological materials in the ecological unit; and (4) configuring waterfront plants in the ecological unit. The restoration method utilizes natural tidal fluctuation to adjust the water and salt conditions of the ecological unit (salt reduction of more than 80%) and to maintain the target water level (0-2 m) as needed, optimizes the soil microbial community structure (soil bacterial richness is increased by more than 200%), improves the plant germination rate and survival rate in the process of tidal restoration (the germination rate is more than 90%, and the survival rate is increased to more than 62%), and enriches the plant configuration varieties in the riparian zone (≥12).

The utility model relates to a dam seepage failure pile planting treatment structure which is used for blocking a seepage channel in a dam, the dam seepage failure pile planting treatment structure comprises a plurality of profile steel piles, a plurality of steel sheet piles, a coarse sand inverted filter layer and a rock ballast backfill body, the profile steel piles are arranged in the dam in the gravity direction, and the coarse sand inverted filter layer is arranged in the rock ballast backfill body. The multiple profile steel piles are arranged at intervals in the length direction of the dam; the steel sheet piles are arranged in the dam in the gravity direction, the steel sheet piles are located on the upstream sides of the profile steel piles and are close to the profile steel piles, the multiple steel sheet piles are sequentially arranged in the length direction of the dam and form a plugging face, and the plugging face can shield the cross section of the permeation channel; the coarse sand inverted filter layer and the rock ballast backfill body are located on the outlet side of the permeation channel and block the outlet of the permeation channel, and the coarse sand inverted filter layer and the rock ballast backfill body are laid in sequence after being locally excavated at the outlet of the permeation channel. The pile planting disposal structure for the dam seepage damage can avoid the shortage of lifting protection and reduce the water damage loss.

The utility model discloses a full-reservoir basin reservoir bottom emptying structure which comprises a reservoir bottom drainage hole, a reservoir bottom impermeable layer, a reservoir peripheral panel and a reservoir bottom gallery connecting the reservoir bottom impermeable layer and the reservoir peripheral panel, and the reservoir bottom drainage hole is communicated with a channel of the reservoir bottom gallery; a drainage pipe is arranged in the reservoir bottom gallery, the upper end of the drainage pipe extends upwards to the top of the reservoir bottom gallery, and the lower end of the drainage pipe extends into the reservoir bottom drainage hole. According to the emptying structure for the bottom of the whole reservoir basin, the technical problem of emptying the reservoir capacity below the elevation of a sand blocking ridge in the prior art is solved.

The utility model discloses a three-dimensional pool inner wall structure, the bottom of an inner wall main body is fixed on a pool raft plate or a floor, the side of the inner wall main body is vertically connected with an outer wall, the outer wall is provided with a guide wall, an outer wall construction joint is arranged between the outer wall guide wall and an outer wall main body, and a water stop steel plate is arranged in the outer wall construction joint. An inner wall construction joint is arranged between the inner wall main body and the pool raft or floor, a vertical construction joint is arranged between the inner wall main body and the outer wall guide wall, continuous water-swelling water-stopping strips are arranged in the vertical construction joint and the inner wall construction joint, the water-swelling water-stopping strips extend into the outer wall construction joint, and the water-swelling water-stopping strips extend into the outer wall construction joint. And the end part is tightly attached to the water stop steel plate. According to the utility model, the pre-embedded water-swelling waterstop strip is used for replacing the traditional guide wall and waterstop steel plate structure, so that the construction process is simplified, and the seepage-proofing effect is improved.

The invention provides a dry type pouring construction method for a low-strength concrete diaphragm wall in a high-altitude area. The dry type pouring construction method comprises the steps that construction preparation is conducted; dewatering and draining: arranging dewatering systems on two sides of the axis of the diaphragm wall, and continuously pumping water to lower the underground water level to be at least 1m below the depth of a to-be-formed groove so as to form a dry construction condition; digging a guide groove; the main groove section is excavated, specifically, the main groove section is vertically excavated downwards from the groove bottom of the guide groove in a segmented groove jumping mode till the wall bottom elevation of the diaphragm wall design is achieved; cleaning a groove section; component installation, specifically, a concrete pouring guide pipe is installed in the groove section according to the design requirement; concrete pouring is conducted, specifically, low-strength plastic concrete is poured into the groove through the installed concrete pouring guide pipe till the designed elevation is reached; sealing the groove at the top; and maintenance and quality detection. According to the scheme, the technical problem of diaphragm wall construction in the high-altitude area can be effectively solved, the construction efficiency and quality are improved, and the influence on the environment is reduced.

This invention relates to a nested rubber waterstop, a joint-face waterstop structure, and its construction method. It is applicable to the field of water conservancy and hydropower engineering. The technical solution adopted in this invention is: a nested rubber waterstop, characterized in that it has a fixed wing and a movable wing. The fixed wing has a cavity inside that can accommodate the movable wing. One side of the fixed wing in the width direction has an opening for the movable wing to extend from the cavity. The other side of the fixed wing in the width direction is connected to a grouting pipe communicating with the internal cavity of the fixed wing. A limiting structure I is provided on the side of the movable wing near the grouting pipe. The opening of the fixed wing has a limiting structure II that cooperates with the limiting structure I on the movable wing to prevent the movable wing from completely detaching from the fixed wing.

The application discloses a kind of earth-rock dam leakage detection patrol and rescue method, which comprises the following steps: S1: rapid identification;S2: accurate positioning;S3: plugging seepage.The application uses the technical equipment system of leakage danger rapid identification, accurate positioning and efficient disposal, constructs online information integration management visual decision support system platform, perfects the earth-rock dam leakage rescue technology system, realizes the rapid identification, accurate positioning and efficient disposal of earth-rock dam danger.

The invention relates to the technical field of ocean engineering antifouling, in particular to an ocean antifouling system based on an ultrasonic vibration-flexible polymer network synergistic effect and a using method and application. The marine antifouling system comprises a flexible polymer network antifouling interface constructed on the surface of a metal matrix and an ultrasonic excitation device. The interface is formed through magnetron sputtering silicon doping, alkali liquor hydroxylation, silane coupling and cross-linking curing; the ultrasonic excitation device emits ultrasonic waves through a multi-transducer combination, and the ultrasonic waves are superposed in an interface near field to form an unsteady sound field. The flexible polymer network interface which can be activated by ultrasonic waves is constructed, and is deeply coordinated with the frequency-adjustable and unsteady ultrasonic field, so that a dynamic and static integrated anti-fouling mechanism is constructed, the problems of insufficient static anti-fouling capacity, limited environmental adaptability, poor engineering application reliability and the like which are often faced in the traditional marine anti-fouling technology are remarkably solved, and the anti-fouling effect of the marine anti-fouling system is improved. The effects that the fouling coverage rate is smaller than 10% during static parking and the fouling organism desorption rate is larger than 95% under the dynamic working condition are achieved.

The utility model relates to the technical field of water conservancy project management, and discloses a leaking stoppage and drainage device for water conservancy project management, which comprises a main body used for supporting the leaking stoppage and drainage device; the leaking stoppage and drainage mechanism comprises a ball arranged in the main body and used for controlling leaking stoppage and drainage of water, and the ball is rotationally connected into the main body; the filtering structure comprises a filtering plate arranged on one side of the main body and used for filtering impurities in drainage water, when the water storage amount of the reservoir is large, the large-diameter hole can be communicated with the drainage hole by adjusting the position of the round ball, and therefore the water drainage amount is increased, the water level of the reservoir is rapidly lowered, and the flood risk is effectively dealt with; and when the water storage capacity of the reservoir is small, the position of the ball can be adjusted, so that the small-caliber hole is communicated with the drainage hole, the water discharge capacity is reduced, water resources are saved, the device can be accurately controlled according to different water storage capacities of the reservoir, and the management efficiency of the water resources is improved.

The invention provides a high-density polyethylene composite geomembrane and a production process thereof, and the high-density polyethylene composite geomembrane comprises a cast film and geotechnical cloth. The cast film is prepared from the following raw materials: 52 to 68 parts of high-density polyethylene, 6 to 12 parts of modified metallocene polyolefin-graphene compound, 4 to 9 parts of modified polyolefin-ethylene-vinyl alcohol master batch, 5 to 10 parts of alpha-olefin ethylene copolymer, 3 to 7 parts of vinyl elastomer, 1 to 3 parts of polytetrafluoroethylene micro powder, 0.1 to 0.3 part of antioxidant, 0.2 to 0.5 part of ultraviolet stabilizer and 0.1 to 0.3 part of lubricant. And 1.5-3 parts of an ultraviolet screening agent. The composite geomembrane obtained by the invention has the advantages of high strength, high toughness, high impermeability, excellent pollution resistance, excellent weather resistance, high puncture resistance, firm membrane-cloth combination, good thickness uniformity and the like.

The invention discloses a long-distance pressure water conveyance tunnel crack treatment method which comprises the steps that crack types are determined, and cracks are divided into longitudinal cracks, I-type cracks, II-type cracks and III-type cracks; the treatment of the longitudinal crack comprises grouting and steel plate bonding; the treatment of the I-type crack comprises the steps of forming a caulking groove, and filling the caulking groove with epoxy mortar; bonding a layer of carbon fiber cloth; the treatment of the class II cracks and the class III cracks comprises the steps of forming caulking grooves, installing grouting nozzles, backfilling the caulking grooves with epoxy mortar, grouting in the cracks, and bonding a plurality of layers of carbon fiber cloth or bonding steel plates on the surfaces. According to the method, the cracks are classified, a combination method of multiple treatment modes including crack grouting, epoxy mortar sealing, carbon fiber cloth pasting, steel plate bonding reinforcing and the like is formulated according to the cracks of different types and grades, and the requirements for seepage prevention, bearing and stability of crack treatment are comprehensively considered; the treatment of the tunnel crack is more systematic and targeted, and the problem of crack water seepage can be more effectively solved.

The invention belongs to the technical field of constructional engineering grouting, and particularly relates to a negative pressure grouting system for crack plugging and a construction method.The negative pressure grouting system comprises a perforation grout blocking structure, a crack sealing structure and a negative pressure grouting structure, and the perforation grout blocking structure comprises perforation drilling grout blocking holes in the two ends of a crack to be treated; the crack sealing structure comprises a V-shaped groove or a U-shaped groove which is formed along the crack, a sealing layer is embedded in the V-shaped groove or the U-shaped groove, the sealing layer is flush with the surface of concrete, and the negative pressure grouting structure comprises a slurry inlet hole and a negative pressure hole which are formed in the two ends of a to-be-processed section of the crack respectively. The slurry inlet hole is connected with slurry inlet equipment through a first orifice valve, the negative pressure hole is connected with vacuum generation equipment through a second orifice valve, the first orifice valve, the second orifice valve, the slurry inlet equipment and the vacuum generation equipment are connected with a control system, and the control system performs unified operation according to a control logic system.

The utility model discloses an adjustable waterstop template fixing device, relates to the field of fixed buildings, in particular to a construction tool or auxiliary equipment, and solves the problem that the installation height of a waterstop is difficult to adjust. According to the technical scheme, the adjustable water stop formwork fixing device comprises a fixing block, two upper pressing plates and two lower pressing plates, the two opposite sides of the fixing block are connected with the two upper pressing plates through connecting bolts respectively, the distance between the two upper pressing plates and the fixing block is adjustable, and the two upper pressing plates are connected with the lower pressing plates through connecting bolts respectively. The axial direction of the connecting bolt is set to be vertical, the upper pressing plates are located below the fixing block, and the fixing block and the two upper pressing plates form a formwork clamping groove with a downward opening; the lower pressing plate is installed on the upper pressing plate through a connecting structure, the distance between the lower pressing plate and the upper pressing plate is adjustable, and a water stop installation position is formed between the upper pressing plate and the lower pressing plate. The top of the formwork falls into the formwork clamping groove, and then the waterstop is fixed to the waterstop installation position, so that the waterstop is fixed to the formwork.

The present application relates to dam seepage prevention treatment technical field, specifically for a kind of for pumped storage power station lower reservoir dam seepage prevention treatment's spraying device, including traction frame, guide frame and spraying frame, the bottom of guide frame and traction frame rotationally connected, the spraying frame and guide frame slidingly connected, the outside of spraying frame slidingly connected with sliding sleeve, the inside of sliding sleeve rotationally connected with rotary disc, the back side of rotary disc is equipped with spraying assembly.The present application provides a kind of for pumped storage power station lower reservoir dam seepage prevention treatment's spraying device, with can be adjusted spraying direction according to the lower side of hoist device or is pulled up, and sliding sleeve can be moved along spraying frame to adjust spraying position, effectively improve spraying coverage area, reduce spraying dead angle, improve flexibility when spraying, and personnel need not hold spray gun and other equipment in dam sidewall operation, improve the security of operation.

The invention relates to the technical field of concrete dams, in particular to a concrete dam deep crack comprehensive treatment method which comprises the following steps: firstly, drilling a crack stopping hole in the tail end of a crack to prevent the crack from extending; then slotting along the crack, burying an exhaust pipe, and sealing the crack; then, deep reinforcement and anti-seepage treatment are carried out step by step, specifically, grouting seam penetrating holes are drilled, superfine cement grout is poured, chemical grouting seam penetrating holes are drilled in the upstream face, and epoxidation chemical grout is poured; then, an SR anti-seepage cover plate is pasted on the upstream face crack area; and finally, integrally spraying a polyurea coating. By means of the multi-layer treatment process combining structure reinforcement and flexible seepage prevention from inside to outside, the reliability and durability of crack treatment are remarkably improved, the dam face can be kept uniform and attractive in appearance, and the method has the advantages of being reliable in technology, economical and reasonable.

The frost heaving prevention protection channel for the cold region comprises second geotechnical cloth which is evenly laid on the surface of the channel in an attached mode, a layer of first geomembrane is evenly laid on the upper surface of the second geotechnical cloth, and first geotechnical cloth is evenly laid on the upper surface of the first geomembrane. Protective frames are uniformly attached to the upper surface of the first geotechnical cloth, polyurethane protective layers are arranged on the upper surfaces of the protective frames, and frost heaving resistance layers are embedded in the protective frames; according to the technical scheme, the multiple layers of geotechnical cloth are arranged, the geotechnical membranes are arranged between the geotechnical cloth, the geotechnical cloth and the geotechnical membranes form an inverted filter layer and an anti-seepage layer, the frost heaving problem of the channel slope protection under the negative temperature effect is reduced, workers can adjust the number of the geotechnical cloth and the number of the geotechnical membranes according to the requirements of the workers, and the working efficiency is improved. And the frost heaving prevention capability is further adjusted.

This invention discloses a waterproof and anti-corrosion waterstop for construction joints and its preparation method, relating to the field of engineering waterstop technology. This invention improves upon traditional waterstops by preventing them from gradually hardening, becoming brittle, or losing their elastic recovery ability during long-term use, thus ensuring that the material maintains high tear strength and elongation at break even after aging, overcoming the shortcomings of insufficient anti-aging synergy in traditional technologies.

The objective of this invention is to provide a technology that can stabilize the ground in coastal areas and other similar locations. [Solution] The present invention provides a sand and gravel mixture packed into a bag, wherein the sand and gravel mixture contains calcium-containing sand and gravel and iron powder, the content of the iron powder is 2 to 12 v / v% relative to the sand and gravel mixture, the content of the sand and gravel mixture is 70 v / v% or more relative to the volume of the bag, and the bag is permeable to water.

The application discloses a high-permeability deep-water-level artificial lake anti-seepage composite structure construction method based on Ansys+BIM technology and relates to the technical field of artificial lake anti-seepage structure construction. The high-permeability deep-water-level artificial lake anti-seepage composite structure construction method based on Ansys+BIM technology utilizes BIM technology to construct a high-permeability deep-water-level artificial lake three-dimensional model, imports the BIM model into Ansys software for finite element analysis, analyzes the anti-seepage performance of the waterproof blanket under different conditions, analyzes the seepage law thereof by using Darcy's law, finally obtains actual technical parameters and an allowable deviation range in the construction process by simulating different scenes, and provides technical guidance and reference for high-permeability deep-water-level artificial lake anti-seepage composite waterproof blanket construction. The high-permeability deep-water-level artificial lake anti-seepage composite structure construction method based on Ansys+BIM technology solves the problems of low construction precision, complex technical process, excessive deviation, poor sealing performance and the like.

The invention discloses a lining water seepage prevention structure and a construction technology thereof. The structure comprises a substrate layer made of sugarcane fibers and Portland cement, and the substrate layer effectively resists cracking and dry shrinkage; the anti-seepage layer is compounded by nano graphdiyne and a calcium sulphoaluminate-calcium oxide expanding agent, so that super-strong anti-seepage and crack self-repairing are realized; the sealing layer is composed of butyl rubber and zinc citrate, joints are efficiently sealed, and calcium carbonate crystallization is inhibited. The construction technology comprises the steps of laying of the permeable geotextile, layered pouring, joint strengthening of the pre-compressed sugarcane fiber strips and triple curing. The concrete has the advantages of being high in impermeability, excellent in self-repairing performance, good in crack resistance, durable in seam sealing, environmentally friendly and the like, and is suitable for water conservancy projects such as channels.

The invention discloses a river habitat ecological flow regulation and control device and method based on a multi-objective optimization algorithm, and relates to the technical field of river flow regulation and control. A double-support fixing frame is installed between two lateral confinement baffles, and a plurality of lifting fixing holes are formed in the top end of the double-support fixing frame at equal intervals; a plurality of fixed belt transmission boxes are clamped to the top end of the double-support fixing frame at equal intervals, and transmission motors are installed at the positions, corresponding to input shafts of the fixed belt transmission boxes, of the top end of the double-support fixing frame through motor bases. The drainage position is regulated and treated according to low water and high water, so that the water flow can be stably stored and slowly discharged when the water is low, and can be quickly discharged when the water is high, the overflow condition is avoided, the flow velocity and flow of the water flow are stably regulated and treated according to the actual environment, and the regulation and control effect is ensured.