256results about How to "Reduce settlement" patented technology

The invention discloses a radiation refrigeration coating and a preparation method thereof. The radiation refrigeration coating comprises a first filler and a second filler, the mass ratio of the first filler to the second filler is (1-3): (1-5), and the first filler comprises the following components in percentage by weight: 50-70% of a polyurethane emulsion, 10-15% of a silane coupling agent, 8-10% of multi-mesoporous nano-silica and 5-8% of talcum powder; the second filler comprises the following components in percentage by weight: 60%-70% of polyethylene glycol, 10%-15% of a dispersing agent and 5%-8% of nano barium oxide; 5%-8% of tannic acid; 3%-5% of nano silver; the viscosity of the polyurethane emulsion ranges from 300 cps to 800 cps. The radiation refrigeration coating disclosed by the invention has the advantages that a refrigeration film has larger infrared radiation refrigeration capacity in an atmospheric window, better ultraviolet light absorption capacity and long service life.

The invention relates to the technical field of building pipe piles, in particular to an improved precast pile in a collapsible loess area and a construction technology, the improved precast pile comprises a hollow steel pipe pile, and a receding hole is formed in the hollow steel pipe pile; the at least one guide insertion strip is rotationally connected with the hollow steel pipe pile, the rotating plane of the guide insertion strip is vertically arranged, the guide insertion strip extends into an inner cavity of the hollow steel pipe pile through the receding hole to form a linkage strip, the guide insertion strip and the linkage strip are both arranged in a hollow mode, and a plurality of grout outlets are formed in the guide insertion strip; an inner cavity of the hollow steel pipe pile communicates with the grout outlet through an inner cavity of the linkage strip. The rotation driving unit is movably arranged in an inner cavity of the hollow steel pipe pile, and the rotation driving unit is matched with the linkage strip to drive the guide insertion strip to rotate; the precast pile has the effects that the strengthening effect of the under-pressure concrete on the soil body around the precast pile is improved, and then the settlement amount of the precast pile is reduced when collapsible settlement occurs in the soil body.

The invention belongs to the field of food processing, particularly relates to a carotenoid oil suspension and a preparation method thereof, and more particularly relates to a high-content and low-viscosity carotenoid oil suspension and a preparation method thereof. A dispersion medium of the carotenoid oil suspension provided by the invention comprises an oily substance, and the carotenoid oil suspension contains two parts of carotenoid particles shown as (i) and (ii): (i) carotenoid particles with Dv (90) greater than or equal to 0.01 mu m and less than or equal to 0.5 mu m; (ii) carotenoid particles having a Dv (90) of 3 [mu] m or more and 20 [mu] m or less; the mass ratio of the (i) part to the (ii) part is 1: (1-5). According to the invention, the particle size distribution of carotenoid particles is controlled by utilizing a homogenizing process, so that the requirement of low viscosity of the oil suspension can be met, and meanwhile, high content of effective components can be kept.

The utility model provides a polishing sand feeding mechanism of a sand blasting and polishing machine, belongs to the technical field of sand blasting and polishing machines, and aims to solve the problem that the mixing efficiency of the sand is influenced as the conventional sand is easy to agglomerate with a solution. Comprising a liquid distribution cylinder, a sand inlet pipe, a liquid inlet pipe, a discharging pipe, a hybrid driving motor, a stirring shaft, a filtering piece, a stirring and mixing mechanism and a distribution anti-blocking mechanism, the sand inlet pipe is fixedly connected to the upper part of the liquid distribution cylinder; the hybrid driving motor is fixedly connected to the lower part of the liquid distribution cylinder; the stirring shaft is rotationally connected to the interior of the liquid distribution cylinder, and the stirring shaft is coaxially and fixedly connected to the upper end of a rotating shaft of the hybrid drive motor; the filter part is arranged at the upper end of the interior of the liquid distribution cylinder and is of a conical filter screen structure; the stirring and mixing mechanism is arranged in the liquid distribution cylinder; and the distribution anti-blocking mechanism is arranged at the upper end of the stirring shaft, so that full mixing of sand and a solution is ensured, caking of the sand is reduced, and uniform mixing of the sand and the solution is ensured.

The utility model provides a bridge abutment back roadbed structure which comprises a first graded broken stone hardcore, a first earthwork standard room, a first bidirectional geogrid, a foam light soil layer group, a second bidirectional geogrid, a second graded broken stone hardcore, a second earthwork standard room and a concrete layer group, the first graded broken stone hardcore, the first two-way geogrid, the foam light soil layer group, the second two-way geogrid, the second graded broken stone hardcore and the concrete layer group are sequentially arranged from bottom to top, the first geocell is arranged in the first graded broken stone hardcore, and the second geocell is arranged in the second graded broken stone hardcore. And the second geocell is arranged in the second graded broken stone hardcore. According to the abutment back roadbed structure, the settlement characteristic of the roadbed is improved, the overall stability and the bearing capacity of the roadbed are improved, and the dead weight of the roadbed can be effectively reduced, so that post-construction settlement at the bridge joint is reduced, the stability and the bearing capacity of the roadbed are improved, and the safety and the comfort of driving are ensured.

The utility model relates to the technical field of supporting structures in a foundation pit, and discloses a supporting structure used in the foundation pit and convenient to disassemble and assemble, which comprises a supporting plate, a fixed seat is fixedly arranged on the inner side of the supporting plate, a sliding block is movably arranged in the fixed seat, two rotating blocks are movably arranged in the sliding block, and the two rotating blocks are fixedly arranged on the supporting plate. And a threaded rod is fixedly mounted at one end of one rotating block. Compared with a traditional structure, the structure has the advantages that the threaded rod and the threaded sleeve are convenient to disassemble and assemble through the cooperation between the fixed seat and the sliding block, and meanwhile, the two supporting plates are convenient to support through the cooperation between the threaded rod and the threaded sleeve; through the connection mode of the threaded rods and the threaded sleeves, the supporting plates are rapidly and accurately connected, complex installation and tedious disassembly steps in a traditional supporting mode are avoided, and the construction period is greatly shortened.

The invention discloses a three-in-one drilling fluidized filling green mining method for a fully mechanized coal mining face. Comprising the following steps that a ground filling pump station is arranged on the ground, a filling chamber is arranged underground, and a ground filling system is responsible for filling work of a separation layer area and conveying filling materials to the underground filling chamber; and an underground filling system needs to fill the fissure zone and the caving zone. The method comprises the following steps: firstly, determining the layer position of separation grouting, the arrangement of separation drill holes, the separation grouting amount and other key conditions for implementing separation grouting filling mining according to factors such as separation occurrence time, separation space and separation development conditions; for a fissure zone and a caving zone, the height and filling amount parameters of the caving zone need to be determined. And finally, the filling system is designed, and the matching relation of the underground filling system in time and space is mainly considered. And the three-in-one filling can support the overlying strata, so that the safety of underground workers is protected, and the ground building is protected from being damaged.

The invention relates to a foam concrete light-weight embankment capable of alternately maintaining traffic by lifting a longitudinal slope during reconstruction and expansion of a road, which adopts foam concrete to construct and expand the embankment and to lift the embankment by the longitudinal slope, so that the dead weight of the embankment is reduced, the settlement amount of a new roadbed is reduced, the differential settlement between the new roadbed and the old roadbed is reduced, and the later maintenance cost is reduced; during foam concrete construction, a plurality of reinforcing mesh anchoring measures are set layer by layer, so that the stability of the reinforcing meshes in the foam concrete pouring process is improved, and the construction quality of the light embankment is further improved; the new roadbed and the old roadbed are anchored through the reinforcing mesh hanging type supports, the Z-shaped supports and the claw-shaped supports, and the integrity between the original roadbed and the widened longitudinal slope lifting embankment is improved.

The invention discloses a conductive glass fiber cloth, which comprises a glass fiber base cloth and a carbonized conductive layer formed on the glass fiber base cloth, and the carbonized conductive layer is obtained by coating conductive ink and calcining, the conductive ink is prepared from the following components in parts by weight: 10 to 30 parts of low-melting-point glass powder, 3 to 5 parts of graphene, 0.5 to 2 parts of single-walled carbon nanotubes, 0.1 to 0.5 part of conductive carbon black, 5 to 10 parts of resin, 0.1 to 0.3 part of dispersing agent, 0.01 to 0.03 part of anti-settling thixotropic agent, 0.01 to 0.05 part of silane coupling agent, 70 to 90 parts of water and 5 to 20 parts of ethanol. The conductive glass fiber cloth is high in sheet resistance stability, good in coating adhesion fastness, excellent in impact resistance and suitable for conductive functionalization of thin glass fiber cloth.

The invention provides a prefabricated hollow pile foundation and a high-pressure grouting method thereof. The prefabricated hollow pile foundation comprises a flexible bag, a steel pile tip and a connecting plate, and the top of the flexible bag is connected with the bottom of a prefabricated hollow pile through the connecting plate; a grouting port valve port in the middle of the connecting plate is connected with a grouting pipe in the prefabricated hollow pile; and a steel pile tip is mounted at the bottom of the flexible bag. After pile sinking, through high-pressure grouting, the flexible bag expands and extrudes a soil body at the pile end, the pile end is expanded, meanwhile, a soil layer at the pile end is compacted, the bearing capacity of the pile end is greatly improved, pile settlement is reduced, meanwhile, the grouting amount is controllable, and the bearing capacity of the pile is controllable.

The invention discloses a cooling anti-radiation coating and a preparation method thereof. The cooling anti-radiation coating comprises a surface coating, a middle coating and a bottom coating, the surface coating comprises the following components in percentage by weight: 40-60% of polyethylene, 1-5% of carbon nanotubes, 1-5% of graphene oxide, 10-15% of a dispersant, 5-8% of polyethylene glycol, 3-8% of nano barium oxide and 3-10% of nano boron nitride. The intermediate coating comprises the following components in percentage by weight: 50%-70% of polyurethane, 20%-30% of a silane coupling agent and 5%-10% of aluminum oxide; the bottom coating comprises the following components in percentage by weight: 70%-80% of resin, 7%-9% of talcum powder, 2%-4% of aluminum oxide and 3%-10% of hydroxyethyl cellulose. The cooling anti-radiation coating formed by the synergistic cooperation of the components has high electromagnetic shielding performance and long service life.

The invention discloses a flexible electrode based on liquid metal and a preparation method thereof. The method comprises the following steps: preparing a suspension containing the liquid metal and a solid conductive material; adding a polymer solution; spraying on a substrate through ultrasonic waves; wherein the melting point of the liquid metal is less than or equal to 50 DEG C. The flexible electrode provided by the invention has stretchability, and can realize relatively high conductivity under the condition of relatively low content of liquid metal. In addition, the electrode has the advantages of environment-friendly recovery, low liquid leakage risk, multiple kinetic energy, self-healing and the like. The preparation method provided by the invention can be used for preparing a planar electrode and a curved electrode, and is applied to a flexible capacitive sensor for monitoring stress, strain and non-contact fluid flow.

The invention belongs to the technical field of films, and relates to an anti-dazzle anti-reflection anti-fingerprint film, which comprises a transparent support body, an anti-dazzle hardening coating and an anti-reflection coating, and the anti-dazzle hardening coating is obtained by coating and curing a coating liquid prepared from the following components in parts by mass: 1 to 40 parts of resin 1, 1.8 to 4.8 parts of resin 2, 0.75 to 3.25 parts of a photoinitiator and 0.3 to 1.75 parts of a thermal curing agent, the anti-glare coating is prepared from the following components in parts by weight: 0.75 to 4.75 parts of anti-glare particles, 0.25 to 1.25 parts of a flatting agent 1, 0.03 to 0.15 part of a flatting agent 2 and 44.05 to 76.12 parts of a solvent, the antireflection coating is obtained by coating and curing a coating liquid prepared from the following components in parts by mass: 0.47 to 1.8 parts of resin 2, 2.4 to 6.0 parts of resin 3, 0.12 to 0.75 part of a photoinitiator, 0.1 to 0.45 part of a thermal curing agent, 0.18 to 1.65 parts of a flatting agent 3, 0.56 to 2.4 parts of modified hollow silicon dioxide, 0.1 to 1.25 parts of a wetting dispersant and 85.7 to 95.74 parts of a solvent. According to the technical scheme provided by the invention, the anti-glare and low-reflection coating has good anti-fingerprint performance, coating adhesive force and friction resistance while having anti-glare and low-reflection performance.

The invention discloses a low-viscosity high-stability perfluoropolyether-based magnetic liquid and a preparation method thereof, and relates to the technical field of magnetic material preparation, and the preparation method comprises the following steps: preparing composite nano magnetic particles of ferroferric oxide and carbon nanotubes by adopting a chemical in-situ coprecipitation method; coating the composite nano magnetic particles with a perfluoropolyether surfactant; the composite nano magnetic particles are dispersed into the perfluoropolyether oil-based carrier liquid, and the solid content of the composite nano magnetic particles accounts for 5 wt%-20 wt%. Ferroferric oxide and carbon nano tube composite nano magnetic particles are obtained through a chemical precipitation method, the particles are stably dispersed in perfluoropolyether-based carrier liquid under the modification effect of a surfactant, and under the condition of low solid content, the dispersion stability and magnetic field stability of the magnetic liquid are greatly improved; the problem of overheating caused by the fact that high-viscosity magnetic liquid is used for high-rotating-speed sealing is greatly solved.

The utility model relates to a water mist remote injection system based on magnetized water. On one hand, an axial flow fan drives air jet flow to be rectified through a rectifying section to form high-speed axial air jet flow; on the other hand, water is driven by a water pump to be introduced into a proportional mixer to be mixed with an additive, the mixed water is introduced into a magnetizing device, the hydrogen-bond interaction of water molecules is changed, and therefore the viscosity and surface tension of fog drops are improved, and finally the fog drops are sprayed out through a supersonic airflow atomization nozzle arranged on the mixing section of the air duct; under the boosting and protection effects of the high-speed axial air jet flow, the situations of diffusion, liquid drop coalescence and the like of mixed spray are not prone to occurring, remote spraying of effective media is achieved, and the particle size of the mist media at the remote target position is remarkably reduced.

This invention discloses a thickener with a sealing mechanism, relating to the field of thickener technology. The invention includes a thickener body, a rotating shaft, a rake frame, and a movable box. The mixing mechanism includes a mixing rod with a spiral blade fixed to it, and a sealing mechanism also fixed to the mixing rod. A shifting mechanism is slidably disposed on the outer circumference of the rotating shaft. The rotating shaft drives the movable box to rotate, thereby causing the friction wheel to drive the mixing rod and spiral blade to rotate and mix the slurry, ensuring thorough mixing of the flocculant and slurry. The rotating shaft drives the dispersion disc to rotate, which can disperse the slurry to various positions within the thickener body, ensuring the flocculant is also evenly distributed within the thickener body. The shifting mechanism causes the dispersion disc to rise, reducing the opening of the discharge tank and thus decreasing the discharge speed. The movable box moves downwards, making the mixing rod parallel to the bottom of the thickener body. At this time, the rotating spiral blade stirs up the mud layer at the bottom of the thickener body, reducing the resistance on the rake frame and preventing deformation or jamming of the rake frame.

The invention discloses a road ecological environment-friendly slope system which comprises a roadbed, the roadbed is filled with coarse particle layers, and a reinforcing layer is arranged between every two adjacent coarse particle layers. A base layer is arranged on the bottom side of the bottommost coarse particle layer; the coarse particle layer is provided with horizontal anchor rods and vertical channel steel; a soil leveling layer is laid on the slope surface of the roadbed, an inverted filter soil layer is laid on the soil leveling layer, a gabion net is laid on the inverted filter soil layer, planting blocks are built on the gabion net, planting grooves are formed in the planting blocks, pouring holes are further reserved in the planting blocks, reinforcing rods are installed in the pouring holes, and the reinforcing rods are obliquely inserted into the coarse particle layer; the reinforcing rods are obliquely inserted into the side slope roadbed to play an anchoring role, the planting blocks are tightly connected with the side slope roadbed, the stability of the planting blocks is improved, and the planting blocks are prevented from shifting or toppling due to external force. The upper load is dispersed to the deep part of the side slope by the reinforcing rods, so that the stress concentration of the planting blocks and the surrounding area is reduced, the bearing capacity of the whole side slope is improved, and the slope protection capacity is enhanced.

The invention relates to the technical field of molybdenum-copper composite board preparation, in particular to a method for preparing a molybdenum-copper composite board based on a freeze-drying method, which comprises the following steps: preparation of slurry, preparation of a molybdenum skeleton, determination of a copper block, infiltration sintering and post-treatment. According to the method, the problem that two phases of an existing molybdenum-copper composite material are distributed unevenly is effectively solved, the density of the molybdenum-copper composite material is improved, the molybdenum-copper composite material has excellent conductivity, the freeze drying cost is low, and industrial production of the high-performance molybdenum-copper composite plate can be achieved.

The system comprises a mine body, a coal seam goaf is formed after a working face to be stoped is stoped, the lower terrain side of the coal seam goaf is communicated with a mine system main roadway, a rectangular water pool is formed in the mine system main roadway, the rectangular water pool is communicated with a ground water storage pool through a water drainage pipeline, and the ground water storage pool is communicated with the coal seam goaf through a water drainage pipeline. The rectangular water pool is further communicated with a porous water filtering pipe, the ground water storage pool is sequentially connected with a water purifier and a coal gangue slurrying pool through water pipes, the coal gangue slurrying pool is connected with a coal gangue crushing unit and a grouting pump through material conveying pipelines, the grouting pump is communicated with a coal seam goaf through a grouting pipe, and a stirring machine is arranged in the coal gangue slurrying pool. The invention further discloses a goaf filling method, and the system and method for filling the goaf through the coal gangue slurry solve the problems that in the prior art, a slurry making water source is insufficient, and a large amount of goaf accumulated water is accumulated in the goaf and is not effectively utilized.

According to the post-grouting expanded-base composite tubular pile and the construction method, an expanded-base technology and a post-grouting technology are combined, pile end post-grouting can efficiently fill pores of an expanded-base part, the strength and compactness of a pile end soil body are remarkably enhanced, the bearing performance of a pile foundation is improved, meanwhile, the settlement amount of the pile foundation is effectively reduced, and the construction efficiency is improved. The stability and the safety of the building in the long-term use process are ensured; a technical solution; comprising a grouting pipe, a prefabricated tubular pile and a composite pile outer wrapping body. The grouting pipes are symmetrically arranged in the prefabricated tubular pile in the axial direction, the outer sides of the grouting pipes are wrapped with water stop adhesive tape, and the length of the grouting pipes is larger than that of the prefabricated tubular pile. A composite pile wrapping body is arranged on the outer side of the prefabricated tubular pile, the prefabricated tubular pile is in a cylindrical shape, the upper portion of the composite pile wrapping body is also in a cylindrical shape, and the lower portion of the composite pile wrapping body is in a circular truncated cone shape.

The invention relates to the field of pesticides, and particularly discloses a pesticide composition containing flumioxazin and glufosinate-ammonium as well as a preparation method and application of the pesticide composition, and the pesticide composition is prepared from the following raw materials: flumioxazin, glufosinate-ammonium, a dispersing agent, an emulsifying agent, an anti-settling agent and vegetable oil; wherein the emulsifier is a mixture of sulfonated styrene-maleic anhydride copolymer sodium salt and hydroxylated lecithin; the preparation method comprises the following steps: mixing and stirring the vegetable oil, the emulsifier and the anti-settling agent to prepare an oil phase, then adding the flumioxazin and the glufosinate-ammonium, mixing and stirring, then adding the dispersing agent, and then carrying out homogeneous grinding treatment to prepare the dispersible oil suspension type pesticide composition. The invention further discloses the pesticide composition for weeding, and the pesticide composition has the advantages that the pesticide reagent containing flumioxazin and glufosinate-ammonium at the same time is used after being directly mixed with water during use and does not need to be prepared on site, meanwhile, the pesticide effect of the pesticide composition is guaranteed, and operation is simpler and more convenient.

The invention provides shape memory water-based hydraulic damping fluid containing electromagnetic rheological polymer composite particles and a preparation method of the shape memory water-based hydraulic damping fluid, and belongs to the field of water-based hydraulic damping fluid. Ferroferric oxide is synthesized through an oxidation-precipitation method, the dispersity and stability of particles are improved through sodium citrate on the basis of the excellent magnetic performance of the ferroferric oxide, and meanwhile, a silicon dioxide shell layer is coated through a sol-gel method so as to enhance the chemical stability and oxidation resistance of the ferroferric oxide. And further modifying and introducing isocyanate propyl triethoxy silane and cystamine dihydrochloride to construct self-repairing and shape memory functions on the surfaces of the particles. And in combination with the shape memory characteristic of a polyurethane matrix, magnetic response, dynamic regulation and control and multifunctional application are realized. And the finally prepared electromagnetic rheological polymer composite particle material has excellent performance and wide application prospect.

The invention provides a soft soil tunnel steel arch mounting device and a using method thereof. The soft soil tunnel steel arch mounting device comprises a plurality of bottom plates, lifting mounting tables are arranged on the bottom plates, jacking devices are arranged between the bottom plates and the mounting tables, compacting devices are arranged at the bottoms of the bottom plates, each compacting device comprises a settlement sensing device, a jacking device and a jacking rod, and the jacking rods are mounted at the bottoms of the bottom plates. When the bottom of the bottom plate settles, the solid agent extends into the air bag to generate air and increase the pressure of the jacking device so as to fill the bottom of the bottom plate, inclination of the whole device caused by settlement is avoided, and meanwhile, jacking force of the jacking device is transmitted to the bottom plate through the jacking rod so that the bottom plate can bear supporting force of the bottom. And the whole device is further prevented from inclining. A gap between the bottom plate and the tunnel when the tunnel steel frame is installed is avoided, and the phenomena that in the long-term use process of the tunnel, the tunnel foundation is prone to sinking, the overall structure deforms or collapses, the bearing capacity is reduced, and the stability of the tunnel is affected are avoided.

The present application relates to the technical field of concrete, and particularly relates to a method for preparing foam concrete by using carbon dioxide foam, which comprises the following steps: preparing super-stable carbon dioxide foam: uniformly dispersing nanoparticles in water to prepare a nanoparticle suspension; adding a surfactant to the nanoparticle suspension and uniformly stirring to prepare a nanoparticle foaming agent; sucking the nanoparticle foaming agent by a foaming machine, and introducing carbon dioxide to prepare stable carbon dioxide foam; uniformly stirring water and a water reducing agent in cement to obtain a cement slurry, introducing carbon dioxide gas into the cement slurry to obtain carbonated cement slurry; adding a foam stabilizer to the carbonated cement slurry and the prepared carbon dioxide foam, and continuously stirring until the carbon dioxide foam is completely introduced into the cement slurry. The foam concrete prepared by the method has a density which is at least one third lower than that of the existing method under the condition of unchanged strength, so that the application scenarios of the foam concrete are increased.

The invention belongs to the technical field of electrolytes, and particularly relates to an electrolyte suitable for low temperature, a preparation method and a lithium battery, the electrolyte comprises a solvent, a lithium source, a film-forming additive and surface modified magnetic particles; according to the invention, the magnetic particles are added in the electrolyte, then the permanent magnet on the turntable rotates to form a variable magnetic field, due to the change of the magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field, and due to the continuous change of the external magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field. The magnetic particles are uniformly distributed in the battery pack, so that the electrolyte can be continuously and uniformly heated, and even if the temperature of the external environment is relatively low, the magnetic domains in the magnetic particles continuously move, the magnetic hysteresis loss phenomenon occurs in the movement process, and the temperature of the magnetic particles is further increased; and therefore, the low-temperature applicability of the electrolyte is improved.

The utility model discloses an assembly type water wave imitating permeable dam structure which comprises a dam head component, a dam body component and a dam root back plate component, the dam body component comprises a plurality of unit components which are connected end to end in the longitudinal direction, the head end of the dam body component is connected with the dam head component, and the tail end of the dam body component is connected with a dam root back plate in a closed mode; each unit component comprises an upstream face, a downstream face, a dam top portion and a dam bottom portion which are connected in a surrounding mode, the interiors of the unit components penetrate in the longitudinal direction to form a water wave simulating permeable cavity, the transverse middle of each dam bottom portion protrudes upwards to form an arch support, and the two transverse sides of each dam bottom portion extend outwards to form dam toes; the dam head component and the dam body component are each provided with a water permeable mechanism. By adopting the water-wave-imitating structural form, the water pressure generated by water flow on the dam body can be effectively reduced, and the stability of the dam body can be improved; the fabricated structure is adopted, so that the site construction operation time can be shortened, the contradiction between construction and navigation is relieved, the project quality can be improved, and fine management and green construction are achieved.

The utility model relates to the technical field of municipal road engineering, and discloses a municipal road engineering design antiskid structure which comprises a main body mechanism, an antiskid mechanism and a cleaning mechanism, the main body mechanism comprises a road body, the antiskid mechanism comprises an antiskid block, and the bottom of the antiskid block is fixedly connected with the top of the road body. The cleaning mechanism comprises a connecting column, and the bottom of the connecting column is in transmission connection with the bottom of the road body. The antiskid blocks are arranged at the top of the road body, friction between foot soles of pedestrians and the ground can be increased, and in rainy days, the filter screens are arranged at the tops of the water inlets, so that impurities on the surface of the road can be prevented from flowing into the entrance and exit; rainwater flows into the road body from the water inlets formed in the top of the road body, and the cleaning brushes arranged in the water inlets are driven by water flow to rotate when encountering the water flow, so that the inner walls of the water inlets are cleaned, the water inlets are prevented from being blocked, and the drainage efficiency is improved.

The invention discloses a steel structure assembly type supporting device and a working method, solves the problem of low positioning precision of a supporting device in the prior art, and has the beneficial effects of realizing accurate positioning of a steel member at a horizontal position and meeting the splicing requirements of different inclination angles. Comprising multiple layers of standard knots which are sequentially spliced into a steel structure, at least two sets of lifting assemblies are arranged at the top end of the standard knot on the topmost layer and connected with a movable platform, and the lifting assemblies are adjusted to enable the movable platform to ascend and descend so as to achieve connection of spliced components in the horizontal direction. When the heights of the lifting assemblies are different, the movable platform inclines so as to facilitate connection of splicing components with different inclination angles, the movable platform comprises a base, an inner core is arranged in the base, a moving assembly is arranged between the inner core and the base so as to adjust the position of the inner core relative to the base, and a positioning assembly is arranged at the position of the inner core.

The invention provides a fracturing process method for a horizontal well to laterally penetrate through a mudstone communication oil layer. The fracturing process method mainly solves the problem that due to the fact that an existing sandstone layer section fracturing process method is adopted, the length of a crack formed in mudstone is not enough, and a wellbore and lateral oil-containing sandstone cannot be effectively fractured. The method is characterized by comprising the following steps that S1, a fracturing wellhead is installed, and a fracturing manifold and a vehicle set are connected; s2, performing pressure test on a surface pipeline and a gate until the pressure is qualified; s3, perforation is conducted on the target interval; s4, main fracturing construction is started, and an artificial fracture is formed to communicate with a lateral oil layer; s5, all fracturing construction of the remaining sections of the target horizontal well is completed section by section; and S6, after construction of all designed target layer sections is completed, the well is closed, and flowback is conducted according to design requirements. According to the fracturing process method for laterally penetrating through the mudstone communication oil layer of the horizontal well, it can be ensured that an effective oil flow channel is formed between the shaft and the oil layer, effective utilization of the lateral oil layer is achieved, and the production requirement of the lateral oil layer is met.

The invention belongs to the technical field of foundation treatment in civil engineering, and discloses a device for preparing a composite foundation treatment pile body section through deep modification of waste flow-state sludge, which comprises a rigid frame, an electric hoisting mechanism, a pile body forming mechanism, a sliding bearing mechanism and a sliding releasing mechanism, the rigid frame and the electric hoisting mechanism are used for hoisting and fixing an upper closing cover of the pile body forming mechanism; the pile body forming mechanism is used for pressurizing, dehydrating and forming the mud subjected to flocculation-solidification conditioning; the sliding bearing mechanism is arranged on a rigid frame base of the device, bears the pile body forming mechanism and facilitates material filling. After the pile body sections are formed, the pile body can be separated from the pile body forming mechanism and temporarily stored or conveyed to a centralized place for maintenance through the sliding separation mechanism. Waste flow-state sludge is directly converted into a high-reinforcement solidified soil column capable of being used as a precast pile component, and then the high-reinforcement solidified soil column and a gravel drainage body are assembled, so that the effects of shortening the construction period, reducing post-construction settlement and improving the bearing capacity of a composite foundation are achieved.