85results about How to "Simple construction technology" patented technology

The invention relates to a viaduct drop-off deformation seam structure, which is arranged between a box type steel structure and a concrete structure, wherein one side of the concrete structure corresponding to the box type steel structure is fixedly provided with an embedded steel element, a steel support seat facing the inside of a deformation steam is correspondingly welded with the upper part of the embedded steel element and the upper part of the box type steel structure, waterproof coiled materials are paved on the steel support seat in the through length direction of the deformation seam, a steel press plate is placed on the waterproof coiled materials, and asphalt paste is respectively embedded in junction parts of the two sides of the steel press plate with the box type steel structure and the concrete structure. A groove-shaped layer board is arranged in the through length direction at the lower part of the deformation seam, one side of the groove-shaped layer board is connected with a lower wing edge of the box type steel structure, the other side of the groove-shaped layer board is fixedly connected with a hanging connecting element provided with a bent hook at the bottom end, and the upper end of the hanging connecting element is fixedly connected with the steel support seat arranged at one side of the concrete structure. The viaduct drop-off deformation seam structure solves the technical problems that the traditional pavement deformation seam structure cannot meet the requirement of various kinds of protection performance of the pavement deformation seam between a drop-off platform and a viaduct of a railway station building viaduct waiting hall under the deformation condition.

The invention discloses a relay unearthing method and structure for a deep foundation pit platform under a reverse construction condition. The relay unearthing method comprises the following steps of: beginning with an unearthing surface of a deep foundation pit, transferring earth-stone work of the unearthing surface to a first previous earth transferring platform through an excavator on the unearthing surface, then transferring the earth-stone work on the first previous earth transferring platform to a second previous earth transferring platform previous to the first previous earth transferring platform through the excavator on a shutdown platform above the first previous earth transferring platform; afterwards, transferring the earth-stone work on the second previous earth transferring platform to a third earth transferring platform previous to the second previous earth transferring platform through the excavator on the second previous earth transferring platform, and so on till the excavator arranged on the top surface of the deep foundation pit transfers the earth-stone work on the uppermost earth transferring platform to an earth-stone work transfer vehicle on the top surface of the deep foundation pit; and finally transporting the earth-stone work to an appointed soil dumping place through the earth-stone work transfer vehicle. The relay unearthing method and structure have the advantages of construction simplicity, low earthing cost, safety in use, high efficiency, rapidness and the like.

The invention discloses a spraying-absorbing-type method and a spraying-absorbing-type device for waste heat recovery of fuel-gas flue gas. Fuel gas drives a generator to combust, released energy is taken as a high-temperate heat source for a absorption refrigerating machine, flue gas generated after combustion is mixed with boiler flue gas, and the mixed flue gas enters n-level spraying elements, directly contacts with spray water in the spraying elements to be evaporated and cooled, and are then exhausted from a flue-gas outlet; automatic-circulation water enters a first-level spraying unit from a spraying-element circular-water inlet to be sprayed, outlet water of each level spraying unit is delivered to a next spraying element under the action of a spraying water pump to be sprayed, outlet water of the nth-level spraying element is pumped into an evaporator from a chilled-water inlet of the evaporator by a circulating water pump to be cooled, and cooled chilled water is delivered to the first-level spraying unit to complete automatic circulation of the spray water. By the method, energy can be effectively saved, heating capacity can be effectively improved, SO2 (sulfur dioxide) and NOx (nitrogen oxides) in the flue gas are removed, and pollution of the flue gas to environment is reduced.

The invention provides a method for stabilizing a subgrade by adopting a soil stabilizing agent. The method comprises the steps of mixing materials comprising a strong oxidant, a dispersing agent, an ionic polymer activating agent and a stabilizing catalyst together to prepare the soil stabilizing agent; preparing the selected subgrade material according to the soil with the plasticity index of 7-35; diluting the soil stabilizing agent in water in a volume ratio of (1:100)-(1:200), and simultaneously adding 3-20 of carbide slag, 3-12 of lime or 2-8 of cement to the subgrade material according to the earthwork weight ratio to be mixed; spraying and compacting: computing the volume ratio (generally 0.016-0.02%) of the prepared soil stabilizing spray solution according to the earth volume of compacted soil, converting the volume ratio to weight ratio when adding the usage amount, spraying the soil stabilizing agent with density of 1.7-1.75g/cm<3> into the soil used for the subgrade, and forming the subgrade through compaction. The method has the advantages that harmful substances can not be produced; the method is simple in construction technology, is convenient to operate, is favorable for reducing the construction amount, is high in soil stabilizing speed, has good effects, conduces to greatly shortening the construction period, is more suitable for the characteristics of local soil properties, and has more obvious stabilizing effects.

The invention relates to the technical field of road construction and maintenance, in particular to a construction method of a cement-emulsified asphalt mortar injecting type semi-flexible pavement. The construction method of the semi-flexible pavement comprises the steps that a lower bearing layer is paved with coarse aggregate macadam, well-blended cement-emulsified asphalt mortar is injected into gaps of the coarse aggregate macadam after leveling and pressure stabilizing are conducted, and the semi-flexible pavement is formed through the steps of maintaining, rolling forming and the like. According to the construction method of the cement-emulsified asphalt mortar injecting type semi-flexible pavement, the construction technology is simplified, miniaturization, simplification and minimization of matched construction machinery equipment are achieved, materials used in the method are common, the construction technology is simple and easy to master, application and popularization are convenient, construction can be conducted at room temperature, and wide application is achieved.

The invention discloses a multi-dimensional tuning electromagnetic energy consumption and vibration reduction device, which comprises an outer box and an inner box. The outer box is provided with a plurality of small balls, and the inner box is arranged on the small balls to ensure its It can move freely in the horizontal direction; and the two sides of the inner box are connected with the inner side wall of the outer box through electromagnetic dampers, and a magnet is arranged on the inner top and inner bottom of the inner box, and the top of the inner box A spring pendulum is suspended, and the spring pendulum is located in the magnetic space formed by the magnet, and its swing can cut the magnetic induction line; the outer side wall of the outer box can move along the guide rail under the action of an external force through the slider, and the slider It is connected with a translational rack, and the translational rack moves with the slider, driving the rotating gear meshed with it to rotate, and the rotating gear drives an inner core to rotate, and the inner core is installed on the inner wall with magnetic poles In the outer cylinder, a coil is wound on the inner core, and the inner core rotates to cut the magnetic induction line, thereby forming an eddy current damper.

The invention relates to environment protection field, especially relates to a method for using reclaimed waste material to produce construction products. The technology scheme is: uses waste plastics as material, after being crashed into proper particle shape, according to demands such as rigidity, flexibility and so on for different use, adds in silicia soil and other additives, then designates the color and adds in paint with proper proportion, they are heated to fluid state after being blended evenly, and they are cast to each pattern, shape and functional mold, the product can be acquired through cooling and demoulding. The process is simple and quick, it is stable, tight.

An anti insect screening is made from composite based and thermosetting fibers or yarns that are constructed into a screen fabric wherein the yarns cross each other. The fabric with the yarns therein is heat set whereby the crossing yarns will adhere to each other. The thus obtained fabric is coated by a fluoropolymer based film. The anti insect screening is stretchable but will revert to its original state through the phenomenon of plastic memory. The anti insect screening is chemically inert and solvent resistant to substantially all chemicals. Its mechanical toughness demonstrates superior anti-stick and low frictional properties.

A flash-based cutter-suction dredger dredging construction simulation system comprises a data input interface and a dredging operation overview interface, and is characterized in that physical quantities including flow, density, flow velocity, thickness, tide, offset angle, cutter rotational speed, suction vacuum, cutter pressure, cutter depth and traversing distance can be inputted to the data input interface, the dredging operation overview interface is used for outputting two-dimensional effect images and data display images of a cutter-suction dredger in dredging, data can be manually inputted into the data input interface, external data can be inputted into the data input interface in batch by clicking an external data input button, the dredging operation overview interface can be accessed to data of various sensors of the cutter-suction dredger, so that dredging working conditions can be monitored in real time. The system is made by the aid of the Flash technology and realizes programming by adopting Flash Action Scripts.

The invention relates to a heat bridge-free self-insulation building block comprising insulation boards and concrete, wherein the insulation boards are arranged in the concrete at intervals in four rows; concrete ribs are formed between adjacent insulation boards in the same row; the concrete ribs and the insulation boards in different rows are staggered; the insulation boards in even layers and odd layers respectively extend out of the left side and the right side of the building block to form outwards-extended insulation boards; and all the insulation boards extend out of the top surface of the building block to form outwards-extended insulation boards. The building block disclosed by the invention has the beneficial effects that the heat bridge effect of non-insulation parts of the building block, masonry mortar joints and the like can be avoided with no need of adopting other insulating layers, so that the energy saving ability of the buildings is greatly increased and the heat insulation effect is enhanced and has the advantages of durable service, safety, fire prevention and effectiveness in sound insulation. According to the invention, the heat preserving layer does not need to be added, therefore, the construction technique is convenient, the speed is high, the building efficiency is increased, the material is saved, the transportation volume is reduced and the construction cost is reduced.

The invention discloses a vibration-attenuation control device for an eddy current damper. The vibration-attenuation control device comprises a box-shaped structure, wherein a spring pendulum which is connected with the top surface of the box-shaped structure is perpendicularly arranged in the box-shaped structure and can swing in various directions in the box-shaped structure; according to the movement mode of the spring pendulum, up-down vibration of a spring is coupled with swinging of the spring pendulum; the spring pendulum comprises the spring and a cylinder structure which is vertically connected to the lower end of the spring; magnets are respectively connected to the four horizontal directions of the cylinder structure and the lower end of the cylinder structure; the magnets can swing back and forth along with the cylinder structure and move relative to the box-shaped structure; eddy current can be generated on various surfaces of the box-shaped structure; and the box-shaped structure can be obstructed by an electromagnetic force to move relatively.

The invention discloses a movable assembled type water and soil conservation field runoff plot and a water and soil conservation monitoring method, and relates to a runoff plot and a water and soil conservation monitoring method. The invention aims to solve problems that for a runoff plot built by a bricklaying method, buildings are easy to generate frost cracks, weather factor interference is large, runoff sediment samples are difficult to collect and measurement accuracy is low. The runoff plot is formed by a runoff plot main body, a runoff plot diversion trench and a runoff gathering pit; the runoff plot main body is a rectangular frame formed by the surrounding of a plurality of insertion boards; the runoff plot diversion trench is formed by a trapezoid bottom plate and two diversion plates; the runoff gathering pit is formed by the surrounding of four trapezoid plates; and the diversion bottom plate of the runoff plot diversion trench is erected at the upper ends of the trapezoidplates of the runoff gathering pit at one side of a notch. The runoff plot disclosed by the invention is a prefabticated member made of polypropylene; the prefabticated member is assembled in field; the frost cracks cannot be generated; damage of field construction to the environment is avoided; no samples are left in the runoff gathering pit; and acquired monitoring data is accurate. The movableassembled type water and soil conservation field runoff plot and the water and soil conservation monitoring method are applicable to water and soil conservation monitoring.

The invention discloses a restoration method of petroleum-contaminated soil. The restoration method of the petroleum-contaminated soil comprises the following steps that (1) the oil-contaminated soilis ploughed; (2) a nutrient solution is sprayed into the oil-contaminated soil, specifically, the nutrient solution comprises yeast extracts and water, and due to the spraying amount of the nutrient solution, the weight ratio of the yeast extracts to petroleum hydrocarbon in the petroleum-contaminated soil is 0.05-0.5:1; and (3) curing is carried out after the step (2) is ended. The method can beused for restoring the petroleum-contaminated soil of different degrees of contamination, and the petroleum hydrocarbon removal rate is up to 97%. In addition, compared with the prior art, the processes of fungus sieving, domestication and the like are reduced, and the technical cost is reduced while the processing effect is improved. Moreover, the restoration method is simple in construction technology and low in cost and can be widely applied, and the restored soil has high organic content and high microbial activity and can be used for afforesting.

The invention relates to an electromagnetic damping negative-rigidity support. The electromagnetic damping negative-rigidity support comprises a circular upper connecting plate, a circular lower connecting plate, a cylindrical seismic isolation support connected with the centers of the upper connecting plate and the lower connecting plate, an electromagnetic damping module and an electromagnetic force module, wherein the electromagnetic damping module and the electromagnetic force module are arranged between the upper connecting plate and the lower connecting plate. The electromagnetic dampingmodule comprises annular magnets fixed to the upper connecting plate and conductor plates fixed to the lower connecting plate. The electromagnetic force module comprises inner ring magnets fixed to the upper connecting plate and outer ring magnets fixed to the lower connecting plate. The annular magnets, the inner ring magnets and the outer ring magnets are arranged sequentially from the centersto the outer edges. The conductor plates are annular and are arranged between the seismic isolation support and the outer ring magnets. Compared with the prior art, the electromagnetic damping negative-rigidity support has the advantages that external energy sources are not needed, durability and reliability are achieved, and negative rigidity is generated.

The invention discloses a high-pressure charging intercepting method for landslide rescue control. A plurality of drill holes are arranged in a landslip rear edge slope area along the contour line of a slope; the interval between the adjacent drill holes is 8-10m; an air delivery pipe is inserted into each drill hole; the upper part of the corresponding air delivery pipe is a drill hole wall closed section; the lower part of the corresponding air delivery pipe is a drill hole wall ventilate section; the joint of the drill hole wall closed section; and the drill hole wall ventilate section is 3-5m below the face of the slope; the length of the drill hole wall ventilate section can be 3-5m in general; and the pneumatic tubes are respectively connected with an air compressor through air delivery pipelines. The high-pressure charging intercepting method for the landslide rescue control is high in intercepting speed and is simple in construction technology. The whole process is not related with earth rock excavation engineering, thereby, the engineering cost is low; an effect of controlling the ground water level of a landslide mass to rise is obvious; and the time can be gained for landslide rescue.

The invention discloses a prefabricated combined construction column for a brickwork structure and a construction method using the same. The construction column comprises a steel connection base, a third prefabricated concrete section, multiple first prefabricated concrete sections and multiple second prefabricated concrete sections, the above parts are orderly connected along a vertical direction, the first and second prefabricated concrete sections are arranged alternately, the two adjacent prefabricated concrete sections are meshed through an insertion column and an insertion hole, stirrupswith the same shapes are arranged in the main bodies of the three types of the prefabricated concrete sections, the edge corner of the stirrup is provided with a longitudinal rebar insertion hole, alongitudinal rebar passes through the longitudinal rebar insertion hole, the longitudinal rebar is connected to the prefabricated concrete sections through cured concrete, and the longitudinal rebarsand the stirrups form a steel reinforcement skeleton structure. The construction method comprises S1, connecting the steel connection base and embedded bolts on a brickwork ground beam, S2, building the three types of the prefabricated concrete sections on the steel connection base, and S3, inserting the longitudinal rebars into the longitudinal rebar insertion holes, carrying out anchoring and filling the gap between the longitudinal rebar insertion hole and the longitudinal rebar with concrete slurry. The construction column has a simple structure, is easy to install and use and has high construction efficiency. The construction method has simple processes and short construction time.

The invention discloses a trellis type sandwiched and heat-bridge free concrete block and a preparation method thereof. The trellis type sandwiched and heat-bridge free concrete block includes sandwiched thermal insulation layer trellis type concrete and concrete ribs, and at least four sandwiched thermal insulation layers are arranged in the trellis type concrete; and every two sandwiched thermal insulation layers on each layer are separated by one concrete rib, at least two concrete ribs are arranged on each layer, and the sandwiched thermal insulation layers and the sandwiched thermal insulation layers on the adjacent layers are mutually staggered. The invention has the effects and advantages that the heat bridge effect at the part without thermal insulation of the building block can be prevented without adopting other thermal insulation layers, so that the energy-saving capability of a building is greatly improved, the thermal insulation effect is enhanced, and durability, safety, fire resistance and effective sound insulation can be realized; and the construction technique is convenient, the speed is high, the building efficiency is improved, material is saved, transporting capacity and construction cost are reduced, the building block is light, and the cost of the whole building is low.