828results about "Foundation repair" patented technology

The invention discloses a scouring pile foundation reinforcement method based on an MICP curing technology, which comprises the following steps: acquiring initial environment information such as scouring pit parameters, water flow parameters, tide period and seawater salinity of a delimited area around a pile, and determining grouting parameters such as a grouting window period and a safe flow velocity threshold value and a matching numerical value of a bacterial liquid concentration, a urea concentration and a calcium ion concentration; a grouting assembly composed of a first grouting pipe and a second grouting pipe which are spliced up and down is arranged, and grouting holes are formed in the side wall of the second grouting pipe which is pre-buried in a soil layer; after MICP slurry is prepared according to blending parameters, the slurry is injected into a soil layer in combination with grouting parameters, and meanwhile, the grouting process is dynamically adjusted by monitoring the resistivity of a soil body in real time; and after grouting is completed, the assembly is dismantled, and supplementary grouting is conducted on the local area according to the detection result. According to the method, the accuracy and reliability of pile foundation reinforcement are achieved through environmental parameter adaptation, grout dynamic regulation and control and layered detection and reinjection.

The invention relates to a pile foundation reinforcement method and system based on a karst area, and belongs to the technical field of foundation treatment and reinforcement. The pile foundation reinforcement method comprises the steps that a karst area pile foundation monitoring network is established, and karst cavity distribution characteristic parameters and underground water dynamic change parameters are obtained; constructing an adaptive evaluation model, and setting an initial real-time feedback correction parameter vector; based on a spatio-temporal evolution rule, generating a karst development comprehensive complexity index of dynamic evolution; a grading response mechanism is established, and pile foundation reinforcement early warning and response measures of corresponding grades are triggered; and constructing an intelligent decision-making system, and continuously optimizing an evaluation model and a reinforcement strategy through a feedback mechanism. According to the method, the karst development comprehensive complexity index is generated by introducing the underground water dynamic change parameters and combining the karst cavity distribution characteristic parameters, the evaluation of the geological environment is expanded from a static time point to a dynamic evolution process, and the comprehensiveness and accuracy of the evaluation are improved.

The invention discloses a low-shrinkage high-toughness sprayed concrete material as well as a preparation method and application thereof, and the low-shrinkage high-toughness sprayed concrete material is prepared from the following materials in parts by mass: 400 to 440 parts of cement, 50 to 70 parts of coal ash, 20 to 40 parts of silica fume, 170 to 190 parts of water, 850 to 880 parts of fine aggregate, 770 to 810 parts of coarse aggregate, 30 to 50 parts of accelerator and 3.2 to 6.0 parts of water reducing agent. Hybrid fibers: 30 to 50 parts of steel fibers and 0.9 to 2.7 parts of organic fibers. The low-shrinkage high-toughness sprayed concrete material provided by the invention can ensure high compressive strength and toughness, also has good durability and stability, effectively improves the construction quality of tunnel engineering, and has very excellent market prospects.

Disclosed herein are systems and methods for repairing and / or replacing a pile. In a specific embodiment, a system for repairing a pile includes: an elevating sleeve, where the elevating sleeve includes a top, a bottom, and a contiguous side wall spanning between the top and bottom, where the top is substantially closed, and the bottom is open, where the elevating sleeve is configured to fit over a top of a pile to be repaired, and where the elevating sleeve includes an input port and output port; one or more seals, where at least one seal includes an outer diameter shaped to fit within the elevating sleeve at or near the bottom of the elevating sleeve and an inner diameter to fit over the top of the pile to be repaired; one or more plugs; and a pump.

The invention relates to the field of pole tower pile foundation protection, and discloses a replaceable pole tower concrete pile foundation protection device which comprises a pole tower pile foundation embedded in underwater sludge; the foundation pit is arranged on the underwater sludge, the depth of the foundation pit reaches the middle position of the tower pile foundation base, and the foundation pit is filled with broken stones to form a broken stone hardcore; the mounting plates are arranged on the pole tower pile foundation; the protection plate is arranged on the mounting plate and is rotatably arranged on the mounting plate; and the protection plates can automatically rotate according to the strength and direction of water flow, and are matched with the anchoring effect of the inserting rods, so that the gravel hardcore is effectively stabilized, the gravel layer is prevented from being lost, and the stability and anti-scouring capacity of the pile foundation are further enhanced. Through the design of the clearing rod, sediments on the outer wall of the tower pile foundation can be regularly cleared away, unsmooth water flow or uneven scouring caused by sediment accumulation is avoided, and the situation that the service life of the pile foundation is shortened due to biological corrosion is prevented. And through the effective sliding and scraping effects of the removing rod, the corrosion influence of attachments on the pile foundation can be reduced, and smooth water flow is ensured.

The invention relates to a water-rich silt layer deep foundation pit waterproof curtain leakage rapid plugging system and a construction method, through a foundation pit filler isolation water diversion pressure relief plugging technology, plugging is carried out through fillers such as cotton fibers, then water diversion pressure relief flow guiding is carried out through a flow guiding device, the flow guiding device is convenient to manufacture, construction steps are simple, and the construction cost is low. Quick plugging of leakage points is realized, and the construction efficiency is improved; by means of the section steel support flexible cable net water injection bag rapid back pressure technology, when water seepage occurs around the foundation pit, water is injected into the flexible cable net water injection bag through a water injection device, the bag expands to generate reverse pressure, the wall of the foundation pit is pressed, a leakage channel is rapidly blocked, water seepage is prevented, and construction safety is guaranteed. Meanwhile, the water injection rate and pressure are flexibly controlled through the water injection system, and the requirements of different foundation pit environments can be met; through the back pressure technology after the built-in gravel perforated drainage pipe blind ditch, the underground water level in the foundation pit is effectively controlled, and the foundation pit leakage phenomenon is reduced.

The invention discloses a saturated soil foundation reinforcement method and system based on multi-field coupling, particularly relates to the technical field of geotechnical engineering reinforcement, and is used for solving the problems of parameter mismatch, material waste and secondary deformation caused by lack of dynamic coupling analysis in an existing grouting process. The seepage pressure, the soil deformation rate and the slurry diffusion rate are obtained in real time; generating a multi-field collaboration parameter and correcting the multi-field collaboration parameter; identifying an abnormal region of seepage and deformation direction deviation; extracting a seepage gradient and a diffusion main direction to generate correction parameters; performing staged gradient grouting; dynamically optimizing the parameter gradient and interval; outputting a stable state control parameter; and through multi-field data collaborative analysis and closed-loop feedback control, dynamic matching of grouting parameters and stratum response is achieved, and the reinforcement precision and the engineering reliability are remarkably improved.

The invention discloses a cast-in-place pile directional sliding device and a sliding method thereof, and relates to the technical field of civil engineering construction. The connecting assembly comprises a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are fixed to the side wall of the cast-in-place pile and distributed on the upper side and the lower side of the center of the cast-in-place pile; the sliding assembly comprises first horizontal sliding rails erected on the two sides of the protection wall. The pushing telescopic piece is located below the second connecting piece, and the pushing telescopic piece is used for driving the cast-in-place pile to ascend and descend; the first connecting piece can be upwards separated from the first horizontal sliding rail or downwards placed on the first horizontal sliding rail through lifting of the cast-in-place pile; the first side pushing telescopic piece is fixed to the first horizontal sliding rail and used for driving the cast-in-place pile to slide in the length direction of the first horizontal sliding rail. By the adoption of the scheme, the engineering piles exceeding the standard allowable deviation can be moved to the designated position, and the problems of pile refilling and the like are avoided; and the problem pile processing time is shortened, and the construction efficiency is improved.

The invention discloses a method and system for predicting the grouting effect of foaming type grout based on PSO-BP, and belongs to the field of grouting repair engineering.The method comprises the following steps that bedrock fracture characteristics are collected to obtain fracture opening, fracture roughness and hydrodynamic pressure, meanwhile, grouting influence factor data are obtained, the grouting influence factor data comprise the grouting amount, the grout component proportion and the grouting pressure, and the grouting influence factor data comprise the grouting amount, the grout component proportion and the grouting pressure; the method comprises the following steps: dividing fracture opening, fracture roughness, hydrodynamic pressure and grouting influence factor data into a training set and a test set by using a PSO-BP neural network model, generating a grouting diffusion distance prediction model and a grouting water plugging rate prediction model, predicting the test set through the generated models, obtaining predicted values of the grouting diffusion distance and the grouting water plugging rate, and predicting the grouting diffusion distance and the grouting water plugging rate according to the predicted values of the grouting diffusion distance and the grouting water plugging rate. And according to the two groups of predicted values and measured values, calculating to obtain a mean square error, a mean absolute error and a decision coefficient corresponding to each group to evaluate the prediction effect of the slurry grouting effect. According to the method, accurate prediction of the grouting repair effect of the foaming slurry is realized through the PSO-BP neural network.

The invention relates to the technical field of existing building reconstruction and reinforcement, and provides an existing building supporting structure reinforcement construction method aiming at the problem that an existing bearing platform is easily damaged when an existing column body is subjected to reinforcement treatment, the existing building supporting structure reinforcement construction method comprises the following steps that S1, a peripheral soil body of the existing bearing platform is excavated to the position below the bottom face of the existing bearing platform, so that a foundation pit is formed; s2, steel bar planting holes are drilled in the periphery of the existing bearing platform, and bearing platform connecting steel bars are planted in the steel bar planting holes; s3, a bearing platform reinforcing steel bar structure is bound on the periphery of the existing bearing platform, and the bearing platform reinforcing steel bar structure is connected with the bearing platform connecting ribs; s4, steel bar embedding holes are drilled in the periphery of the existing column body, and column body connecting steel bars are embedded into the steel bar embedding holes; s5, binding a column body reinforcing steel bar structure on the periphery of the existing column body, and connecting the column body reinforcing steel bar structure with the column body connecting ribs; and S6, concrete is poured on the periphery of the existing bearing platform and the periphery of the existing column body, and a post-poured bearing platform and a post-poured column body are formed. The method has the effect that when the existing column body is used for reinforcing the construction position, the existing bearing platform is prone to being damaged.

The invention relates to the technical field of underneath pass existing station construction, in particular to an underneath pass existing station underground excavation construction pile foundation jack force application control method and system. Information such as the position of a construction pile in an underneath pass construction area, the load of an existing station, existing station bottom plate stiffness and geological information of a stratum where the construction pile is located is collected; and constructing a finite element analysis model by using the information, and simulating stress change sample data generated when the plurality of construction piles are subjected to stress change by using the finite element analysis model. And then fitting the stress change sample data, and constructing a stress relation model reflecting the stress change relation of different construction piles. When pressure analysis is carried out, if the pressure is unbalanced, the stress relation model can be used for carrying out force application adjustment control on the abnormally stressed construction pile, so that the situation that local stress unbalance is aggravated is avoided.

The invention discloses a foundation pit stand column top end elevation control device and method, and relates to the technical field of foundation pit engineering. The foundation pit stand column top end elevation control device comprises a height adjusting assembly which is used for being arranged on a steel latticed column and dividing the steel latticed column into an upper-layer steel latticed column and a lower-layer steel latticed column so that the elevation of the upper-layer steel latticed column can be adjusted through the height adjusting assembly; the control assembly is electrically connected with the height adjusting assembly, and the control assembly is used for controlling the height adjusting assembly; the monitoring assembly is used for monitoring the elevation of the upper-layer steel latticed column; the numerical control terminal is electrically connected with the control assembly and electrically connected with the monitoring assembly. The numerical control terminal sends a signal to the control assembly, and the control assembly controls the height adjusting assembly to reduce the elevation of the upper-layer steel latticed column until the monitored elevation recovers to the initial value, so that the control device can reduce the shearing force of the joint of the supporting cross beam and the stand column when the bottom of the foundation pit bulges.

The utility model belongs to the technical field of existing building expansion construction, and discloses a pile-to-column reinforcing construction device, which aims to solve the technical problems existing in the prior art that a pile foundation is adopted to form an underground space through downward digging of the pile foundation, and comprises a raft plate arranged on the upper portion of an original pile, and drilling anchoring holes are longitudinally formed in the periphery of the raft plate. Longitudinal load-bearing steel bars are anchored in the drilling anchoring holes and located on the outer side of the original pile, the tops of the longitudinal load-bearing steel bars penetrate through and are fixed to the original bearing platform, columns are arranged on the top of the original bearing platform, formworks are arranged on the peripheries of the longitudinal load-bearing steel bars, pouring pipes are connected to the formworks, and the pouring pipes penetrate through the original floor slab and then are connected with pouring funnels. And a concrete layer is poured between the template and the original pile. By means of the characteristics of a building structure and a high-position pressurization method, pouring of concrete of the enlarged section is improved, the concrete is compacted through the pressure of the concrete, and the phenomenon that pouring of concrete at the bottom of an original bearing platform and a newly-added section is not compact is avoided.

The invention relates to a marine environment mass concrete construction and crack repairing method, which comprises the following steps: in a mass concrete construction stage, carrying out aggregate precooling, carrying out layered intermittent pouring by using the precooled aggregate, and carrying out cooling treatment at the same time, so that the internal and external temperature difference is controlled within 20 DEG C; if cracks appear on the mass concrete, a polymer modified cement-based composite material is prepared for repairing, the polymer modified cement-based composite material comprises composite gel, a macromolecular tackifier and aggregate, the composite gel is based on 60%-70% of Portland cement, and 5%-8% of nano silicon powder and 10%-15% of fly ash are doped; the macromolecular adhesive comprises 0.5%-1.2% of polyacrylamide or 2%-3% of epoxy resin emulsion. When the scheme is used for repairing marine mass buildings, the overall viscosity of concrete can be improved, the internal and external temperature difference of the concrete is reduced, and the overall impermeability of the concrete repairing material is improved.

The utility model provides a latticed column deviation reinforcing component which comprises a deviation latticed column of a deep foundation pit latticed tower crane foundation and profile steel connecting rods connected with the deviation latticed column. Triangular box body connecting steel plates are arranged between the deviation latticed column and the profile steel connecting rods. And the triangular box body connecting steel plates are respectively welded with the profile steel connecting rods and the offset latticed columns. According to the utility model, the problem of deviation of the lattice column of the deep foundation pit lattice type tower crane foundation can be solved, the construction procedures can be reasonably arranged, the subsequent construction period is not influenced, and the safe use of the subsequent tower crane foundation can be ensured.

The invention discloses an equipment raft foundation underpinning frame with underground cavities and a reinforcing method, and belongs to the technical field of industrial equipment foundation reinforcing and deviation rectifying, the equipment raft foundation underpinning frame comprises a plurality of vertical bearing structures, the vertical bearing structures are distributed in the area with the underground cavities in an array mode, reinforced concrete connecting beams are connected between the vertical bearing structures in the same row, and the reinforced concrete connecting beams are connected between the vertical bearing structures in the same row. Dragging and replacing steel beams are connected between the vertical bearing structures in the same row, and a foundation raft is borne on the dragging and replacing steel beams. An assembly type construction thought is innovatively adopted, and a steel-concrete composite structure thought is proposed for underpinning, namely, the characteristic that the vertical bearing capacity of a concrete structure is high is fully utilized, and a vertical bearing structure is constructed. The flexural capacity of a steel structure is fully utilized, and the steel structure is adopted as an underpinning cross beam. According to the innovative scheme, standardized design, factory-like batch production and on-site assembly type construction can be achieved, the project construction progress is improved, the project quality is convenient to control, and the modules can be reused.

To solve the problem of the conventional reinforcement method of an object using a continuous fiber sheet in which the viscosity of the resin used was low, which results in inferior attachment on a ceiling and longer drying time.SOLUTION: A repair or reinforcement method of an object according to the present disclosure comprises the steps of: (a) coating a first resin composition (20) with viscosity of 30 Pa s or more and 85 Pa s or less directly or through a substrate layer (10) on the object (1); placing a fiber resin composite member (30) on the first resin composition (20) coated in the step (a); (c) coating a second resin composition (40) with viscosity of 30 Pa s or more and 85 Pa s or less on the fiber resin composite member (30) placed in the step (b); placing a polymer sheet (50) on the second fiber resin composite composition (40) coated in the step (c); and (e) defoaming in a way of pushing out the second resin composition from above the polymer sheet (50).SELECTED DRAWING: Figure 2

The invention relates to a building inclination deformation treatment structure and method, the treatment structure comprises a plurality of drill holes, a plurality of peripheral heaped loads and a plurality of internal heaped loads, the drill holes are formed in a foundation of a building, the hole openings of the drill holes are located in the outer side of the foundation, and the drill holes are drilled in the bottom direction of the building by a preset length; the multiple drill holes are formed in the circumferential direction of the building at intervals. Along settlement distribution of the building, the building is provided with a plurality of units on a horizontal projection plane, the units comprise at least one deviation rectifying reference unit, at least one deviation rectifying unit and at least two transition units, the deviation rectifying reference unit is the side, with the largest settlement depth, of the building, and the deviation rectifying unit is the side, away from the deviation rectifying reference unit, of the building. The transition unit is located between the deviation rectifying reference unit and the deviation rectifying unit, and the peripheral stacking load is arranged in the outer side area of the deviation rectifying unit and the transition unit and is close to the deviation rectifying unit and the transition unit; and the internal heaping load is an auxiliary heaping load and is arranged in the building. The treatment structure can effectively treat inclination deformation of the ancient building caused by differential settlement of the foundation.

The invention discloses a urease-producing microorganism induced calcium carbonate deposition solution for foundation reinforcement and a preparation method and application thereof, and belongs to the technical field of foundation reinforcement. The urease-producing microorganism induced calcium carbonate deposition solution comprises a bacterial solution, a cementing solution and a sodium citrate solution, the bacterial liquid comprises bacteria capable of generating urease and citrobacter freundii. Sodium citrate in the urease-producing microorganism induced calcium carbonate deposition solution can chelate free calcium ions in advance, the concentration of the free calcium ions is reduced, the risk of precipitation at an injection port in the single-phase injection process is eliminated, and the solution can smoothly permeate into a deep layer; citrobacter freundii produces acid through metabolism and utilizes citric acid radicals through metabolism to ensure gradual release of calcium ions, so that uniform deposition of calcium carbonate is triggered. Through the synergistic effect of sodium citrate chelated calcium ions and citrobacter freundii metabolism, the solution can be uniformly distributed in the soil sample, and the problem of uniformity of single-phase perfusion is successfully solved.

The invention relates to the technical field of undersea pile foundation scour prevention, and discloses an undersea pile foundation bottom scour prevention reinforcing device and method.The undersea pile foundation bottom scour prevention reinforcing device comprises a base, a clamping mechanism is arranged in the base and used for clamping a pipe pile, and the pipe pile is located on the inner side of the base and can reinforce silt around the pipe pile; according to the device, the foundation pit position of the pipe pile can be filled and buried by utilizing the stone filled during anti-scouring, scouring can be prevented, the silt scoured at other positions can be blocked and intercepted, the surrounding of the pipe pile is further reinforced through the intercepted silt, the whole device is recycled after the pipe pile is removed, and the foundation pit position of the pipe pile can be filled and buried by utilizing the stone filled during anti-scouring; the tubular pile can be clamped and fixed, shaking during penetrating is prevented, the foundation around the tubular pile can be isolated, silt can be isolated, the tubular pile can be prevented from being scoured and taken away, and the tubular pile can be drilled into deeper rock to be fixed.

A settlement driving control structure for forced-settlement rectification and a settlement driving control method for forced-settlement rectification are provided. The settlement driving control structure includes: a vertical hole is formed in a raft of a building, a lower end of an anchor bolt is anchored at the bottom of the vertical hole and the other end of the anchor bolt extends out of the vertical hole to be connected to a tensioning device, two grouting pipes are configured for grouting to form an anchorage body, and two waterstop rubber rings are spaced apart on a position of the anchor bolt above the anchorage body. For a building with a great load on the upper part, a building foundation and a deep stable stratum are connected as a whole by stress application through the device.

The utility model relates to the technical field of building structure reinforcement, and discloses a house building structure reinforcing device which comprises two mounting rings, two U-shaped connecting frames are fixedly connected to the outer surfaces of the two mounting rings, and a pressure measuring frame is mounted on the face, away from the mounting rings, of each U-shaped connecting frame. A first telescopic rod is hinged to the face, away from the mounting ring, of each pressure measuring frame. According to the reinforcing device for the house building structure, through the design of a first telescopic rod and a second telescopic rod and the cooperation of the adjusting functions of a first adjusting sleeve and a second adjusting sleeve, flexible height adjustment of the length and the height of a supporting rod is achieved, and the device can easily adapt to columns of different lengths and heights through the design; reasonable selection of supporting points of the mounting ring is ensured, so that the higher supporting effect and stability are provided, and the supporting strength and stability of the device are greatly enhanced through a triangular structure composed of the first telescopic rod, the second telescopic rod and the bottom plate.

The invention discloses a concrete structure crack control repairing method under unfavorable geological conditions, and relates to the technical field of concrete structure crack repairing, and the method comprises the following steps: S1, crack pretreatment: adopting a laser-ultrasonic wave composite cleaning technology to remove impurities of cracks, and combining a three-dimensional CT scanning technology to mark crack three-dimensional distribution and risk grade; s2, intelligent grouting repair; s3, surface nano coating; s4, releasing and reinforcing stress; s5, enhancing biomineralization; s6, installing an intelligent monitoring system; s7, layered grouting treatment; and S8, regularly maintaining and dynamically repairing. Through the synergistic effect of the step S1, the step S2 and the step S3, accurate control over the whole process from crack cleaning, filling to surface protection is achieved, compared with traditional high-pressure water cleaning, the surface roughness is improved, and meanwhile an accurate foundation is laid for follow-up repairing; through the steps S4, S6 and S8, a closed-loop maintenance system with active stress regulation and control, real-time monitoring and autonomous healing is constructed, a microcapsule self-repairing agent is released to a high-risk area, and the self-healing efficiency is improved.

The invention discloses an old station building and railway foundation reinforcing method, and belongs to the technical field of building construction. The method comprises the following steps that construction preparation is conducted, specifically, a fence is arranged in a platform construction area, and pipelines are arranged; driving fender posts; a foundation pit is excavated, and net spraying treatment is conducted on the exposed face of the fender post; the soil layer below the pit bottom is subjected to grouting reinforcement; grouting reinforcement is conducted on the lower portion of the railway track; reinforcing beams and reinforcing rafts are constructed on the tops of the existing pile foundations; and the platform is recovered according to the partition construction mode, and the fences are dismantled. By means of the combined technology of fender post supporting, pit bottom grouting, reinforcing beam raft reinforcing and line station track grouting, all-directional reinforcing of the station building structure, the foundation and foundation soil is achieved, the integrity and the anti-settling capacity of the structure are remarkably improved, the operation influence is reduced to the minimum through subarea construction, and the construction period is shortened. The method is especially suitable for reinforcement engineering of pile foundation old station buildings.

The invention discloses a magnetic orientation steel fiber 3D printing concrete quick release slip form nozzle supporting manual feeding, and belongs to the field of additive manufacturing. Comprising an anti-gravity printing module for controlling a spiral extrusion structure to rotate by utilizing a power output structure so as to convey concrete to a spray head at an outlet of a hopper in an anti-gravity manner; the magnetic orientation module is used for generating magnetic force along the axis direction of the spray head; and the sliding formwork module is used for providing temporary support for 3D printing concrete in the lining repairing process and restraining the concrete extruded by the spray head in a cavity formed between a sliding formwork and a lining. The anti-gravity printing module solves the problem that manual feeding is incompatible with a traditional concrete repairing lining method based on 3D printing, the magnetic orientation module avoids winding of steel fibers and achieves quick disassembly and quick change of a spray head, and the sliding formwork module provides temporary support; and the possibility of stripping and falling of the 3D printing concrete on the tunnel vault in the anti-gravity direction is reduced, and good application prospects are achieved.

The invention discloses an anti-scour protection and automatic repair device for an offshore wind power barrel-shaped foundation, and relates to the technical field of offshore wind turbines, the anti-scour protection and automatic repair device comprises a protection mechanism and an automatic repair mechanism; the protection mechanism comprises a plurality of protection assemblies; the protection assembly comprises a protection plate and a pressure applying device; each protection plate can rotate around the corresponding first axis to be arranged on the outer barrel wall of the offshore wind power barrel-shaped foundation. The protection plate can be pressed on the seabed surface below the protection plate; the output end of the pressure applying device is used for applying downward pressing power to the protection plate; the automatic repairing mechanism comprises a controller, a posture monitor and a grouting device; the posture monitor is used for detecting the posture of each protection plate; the grouting device can discharge the filling filler; at least one filling outlet is formed in the lower end face of the protection plate in the horizontal state; the controller is in communication connection with the posture monitor, the grouting device and all the pressure exerting devices. The environment limitation can be reduced, and rapid, high-efficiency and low-cost protection and automatic repair can be realized.

The utility model relates to a marine new energy engineering pile foundation ecological transformation structure which provides a sheltering place for marine organisms and improves biological diversity. The method is suitable for the technical field of marine ecological protection and restoration. According to the technical scheme, the multi-hole type artificial fish reef comprises a biological inhabiting plate, a multi-hole type biological reef body and an artificial fish reef body which are sequentially arranged from top to bottom. The biological inhabiting plate is arranged on the pile foundation in a sleeving mode and provided with a plurality of flow guide holes which penetrate through the upper surface and the lower surface and are of various hole diameters, and the outer edge of the biological inhabiting plate is bound with large algae through binding bands so that an algae field can be formed around the pile foundation; the porous biological reef is fixed on the outer wall of the pile foundation, the interior of the porous biological reef is of a hollow structure, and through holes with various apertures are formed in the surface of the porous biological reef for marine organisms to enter and exit and flow guide is achieved; the artificial fish reefs are stacked around the bottom of the pile foundation.

The invention discloses a plugging particle, a preparation method, application and a grouting material, the plugging particle is of a core-shell structure and comprises a force-bearing inner core, the force-bearing inner core is coated with an expansion functional layer, and the expansion functional layer is coated with a delayed hydrogel outer film layer; wherein the inner core is made of one or more of quartz sand, kaolin and inorganic fibers; the expansion functional layer comprises modified bentonite and a super absorbent polymer; the delayed hydrogel outer film layer comprises a water-soluble film; the particle size of the blocking particles is 0.5 to 2.5 mm; through material structure optimization and response mechanism design of the functional plugging particles and the special grouting liquid, the automatic plugging function in the grouting process without mechanical triggering, a chemical expanding agent and a complex plugging device is achieved; and the method is suitable for scenes with high requirements on plugging precision, construction efficiency and structural stability in complex rock mass crack grouting engineering.

The invention relates to a construction quality monitoring method and control system for high-altitude large-volume fan foundation concrete, and the method comprises the steps: A, collecting a state video of concrete in concrete construction, and carrying out the super-definition visual effect processing of the state video; b, maintaining the internal and external temperature difference of the concrete within a preset range through a temperature measuring element; c, calculating a black plug matrix and a neighborhood value according to the concrete surface image, screening out screened images meeting requirements, splicing all the screened images to generate a concrete surface general drawing, and extracting crack characteristics of the concrete surface; starting a grouting module to perform intelligent grouting according to the crack characteristics; and D, calculating the spatial variability of the impact response strength, the average impact response strength and the concrete layer strength quality characteristics to obtain a hardness detection result, and executing the step B and / or the step C according to the hardness detection result. According to the invention, accurate temperature control and high-sensitivity crack detection in concrete construction can be realized, and the quality of concrete and the reliability of the whole structure are greatly improved.

The invention relates to a device for electrochemical deposition plugging reinforced concrete cracks and a construction method thereof. The device is composed of a sponge block, a transparent organic glass box, a direct current power supply, a conductor, a metal strip, a water tank and a micro water pump, etc. The technical method of circulating electrolyte is used to overcome the problem that it is difficult to stably keep the electrolyte covering the plugging area in the electrochemical deposition plugging concrete crack process. The device and the construction method thereof can not only greatly simplify the relevant operation process and improve the construction efficiency, but also significantly improve the plugging effect.