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141results about How to "Flexible and convenient construction" patented technology

Graphene heat radiation paint, preparation method and applications

The invention discloses graphene heat radiation paint. The graphene heat radiation paint comprises the following ingredients, by weight, 40-80 parts of high-molecular resin, 5-15 parts of graphene, 1-8 parts of one-dimensional nanomaterials, 1-8 parts of heat conduction metal powder, 0.5-5 parts of dispersing agents, 0.5-5 parts of antifoaming agents and 100-200 parts of inert solvent. The heat conduction metal powder is at least one selected from silver powder, copper powder and aluminum powder and the granularity is 1-20 micrometers. The above paint has good heat radiation and heat conduction functions. The invention also discloses a preparation method for the graphene heat radiation paint. The preparation method mainly comprises processes of stirring, grinding and reblending. Operation is simple, and the cost is low. The graphene heat radiation paint is mainly applied in heat radiation of daily electronic products and also can be applied in spaceflight electronic devices with high requirements because of good heat conduction and heat radiation functions.
Owner:SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD

Forwarding method used for constructing multi-hop routing in wireless self-organizing network

The invention provides a forwarding method used for constructing multi-hop routing in a wireless self-organizing network, which is based on an ARP proxy system and a mixed routing system. The method comprises the following steps that: a monitoring module of each node monitors each message sent and received by the node in real time; adjacent hosts interact respective routing information in a single-hop range in real time; each node stores a partial or complete topology table of the whole network; when a certain node of the network sends an ARP request to a node which is not directly connected with the certain node, the certain node searches for a next-hop node and sends a routing detection message to the next-hop node according to a routing list; and if the route is reachable, the detection message is transmitted to a target node step by step and returns a routing reachable message, and ARP proxy tables are arranged at various nodes along the route, so a multi-hop route is established. The invention also comprises a method for maintaining and updating the route through modification of network topology detection. The invention also comprises a device used in the network, and describes a complete communication system shown in graph 1.
Owner:NANJING UNIV OF POSTS & TELECOMM

Full-aqueous multicolour paint and preparation method thereof

The invention belongs to the field of paint, in particular to a full-aqueous multicolour paint comprising the following components in parts by weight: 35-40 parts of acrylate emulsion, 0.4-0.7 part of film-forming additive, 6-15 parts of water, 50-60 parts of colorful particle and a proper quantity of thickening agent. The paint of the invention has the characteristic of low VOC and does not contain banned substance ruled in the HJ / T 201-2005 technical requirement for environment labelling product-water-soluble coatings; meanwhile, the inventor especially researches the paint formula according to impact on granulation by pigment filler, and thus the pigment filler has reasonable ingredient; the prepared full-aqueous multicolour paint has the advantages of environment protection, stable quality, controllable colorful particle granulation and the like and solves the defects that the colorful paint contains ingredients harmful on human body and the colorful particle is easy to bleed. The invention also provides the preparation method of the above paint.
Owner:浙江德尔福新型建材股份有限公司

Foam cement insulation board containing industrial solid waste and preparation method thereof

he invention relates to a foam cement insulation board and a preparation method thereof, and provides a foam cement insulation board containing industrial solid wastes and a preparation method thereof. The foam cement insulation board is composed of a mixture A and a mixture B. The mixture A comprises 55-65% of cement, 10-20% of gypsum powder, 8 -15% of hydrogen peroxide,3-4% of a flocculant, 1-2% of a water reducing agent, 1-2% of a coagulant, 2-3% of a cement waterproof agent, 1-2% of lithium carbonate, 1-2% of fiber, and 1-2% of solid master batch. The mixture B comprises 35-47% of a base material, 35-39% of a magnesium chloride solution, 10-15% of magnesium oxide, 2-5% of a binding agent, 2-3% of industrial hydrogen peroxide, 1-2% of lanthanide rare earth and 5-7% of an additive. The Foam cement insulation board provided by the invention has advantages of fireproof, waterproof, light weight, compressive and flexural resistance and high strength, and effectively utilizes industrial solid waste, facilitates environmental protection, and truly realizes turning wastes into treasures.
Owner:ZHENJIANG ZHONGRUI ENERGY SAVING TECH

Method for recovering disc ore on incline ore block

The invention relates to a method for recovering hanging wall ores of a slant ore body, which mainly solves the technical problems of low ore recovery rate, large mining difficulty, low production efficiency and the like existing in the process of recovering the hanging wall ores of the prior slant ore body. When the slant ore body is exploited, an extracting drift is arranged according to the construction layout of a hanging wall prospecting drift, an ore rock boundary line and a hanging wall cutting tunnel, wherein the prospecting drift is dug out 1.5 to 3 meters from the ore rock boundary line, and the hanging wall cutting tunnel is arranged within the ore rock boundary line; the ore body height above the position of the hanging wall cutting tunnel is taken as a subsection, and a vertical upward cutting blast hole is arranged along the direction of the hanging wall cutting tunnel; and vertical or pitching upward back production fan-pattern holes are arranged according to ore caving step pitch and rock drilling row space in the back production direction. The method is suitable for the prior sublevel caving method without sill pillar and a novel technology of large space mining without the sill pillar.
Owner:宝钢集团上海梅山有限公司

Novel multi-network-integrated indoor distribution system

InactiveCN103401598AAvoid duplicationFlexible and convenient network constructionActive radio relay systemsFibre transmissionRadio frequencyDistribution system
The invention relates to a novel multi-network-integrated indoor distribution system. The novel multi-network-integrated indoor distribution system comprises an access unit, an extension unit and a remote end unit, wherein the access unit, the extension unit and the remote end unit transmit signals through digital optical fibers; the access unit can couple multiple downlink radio-frequency (RF) signals from RRUs (Radio Remote Units) of different systems, and the downlink RF signals are converted into baseband digital signals after the downlink RF signals pass through a digital processing unit; the access unit can receive downlink baseband signals from BBUs (Building Baseband Units) of different systems, and the downlink baseband signals can be transmitted together with the baseband digital signals, which are received and processed by an RF coupling port, after the downlink baseband signals pass through the digital processing unit. The novel multi-network-integrated indoor distribution system has the beneficial effects that indoor signal coverage is realized by adopting information source access, digital optical fiber transmission and remote coverage; and the access unit supports signal access of multiple network types and supports signal access of multiple forms. The invention discloses a multi-network-type signal access and coverage system, and repeated construction is avoided, so that the system is energy-saving and environment-friendly; meanwhile, the system supports the signal access of multiple forms, so that network construction is more flexible and convenient.
Owner:SUNWAVE COMM

Composite heat insulation wallboard and manufacturing method thereof

The invention relates to a composite heat insulation wallboard and a manufacturing method thereof. The composite heat insulation wallboard is characterized by comprising a bottom surface layer; the top of the bottom surface layer is connected with a heat insulation layer made of a cement foaming material, a layer of grid-shaped metal framework is embedded in the heat insulation layer close to the top, and the top of the heat insulation layer is connected with a decorative layer; and the left and right sides or left, right, upper and lower sides of the metal framework are provided with circular tubes or square tubes exposed out of the heat insulation layer and used for mounting dry-hang clips. The composite heat insulation wallboard has the characteristics of light weight, high integral strength, good decoration performance and the like at the same time of ensuring the effects of heat insulation and heat isolation; and the manufacturing method is convenient to mount and operate on site, can finish a plurality of working procedures of heat insulation, decoration, reinforcement and the like at the same time during once mounting, and has strong practicability. The composite heat insulation wallboard and the manufacturing method thereof can be widely applied to the occasions of outer heat insulation of outer walls of various buildings or building roofs, and the like.
Owner:BEIJING GREEN GREAT WALL SYST ENG CORP

Method and system for loading pages

The invention discloses a method and a system for loading pages. The method comprises the following steps of: configuring page entities at a client, wherein the page entities comprise at least one representation module; after receiving a page loading request by the client, locally searching functional modules corresponding to the representation module or calling the functional modules corresponding to the representation modules from a server end according to the representation module of the page entities to be loaded, and when more than one functional modules are provided in the system, calling a plurality of aggregated functional modules; and displaying the page by the client according to the data of all the called functional modules. The method and the system for loading the pages can quickly implement personalized page loading.
Owner:JUHAOKAN TECH CO LTD

Light-weight small building block as sandwich of wall and its production method

A light small building block with sandwich for wall is composed of rectangular sandwich board and two rectangular surface slabs made of concrete, and features that its each edge has a slot for casting the reinforced concrete. Its advantages are good insulation of heat and sound, and less possessed area.
Owner:李顺安 +2

Aerated concrete wall material containing river silt and preparation method thereof

The invention relates to an aerated concrete wall material and a preparation method thereof, in particular to an aerated concrete wall material containing river silt and a preparation method thereof. The aerated concrete wall material comprises the following main components in percentage by weight: 60-75% of river silt, 1-10% of cement, 13-28% of lime, 1-2% of gypsum powder, 6-10% of aluminum powder and 2-11% of foam stabilizing agent, and the sum of weight percentages of the components is 100%. In the invention, river silt dug out by regulating the Yangtze River can be effectively utilized, energy is saved, emission is reduced, the ecological environment is protected, and the processed aerated concrete wall material also has high compressive strength and high bending strength.
Owner:HUAHONG GROUP YIXING HUAHONG NEW WALL BUILDING MATERIALS

High-thermal-conductivity organosilicone mud and preparation method thereof

The invention discloses a high-thermal-conductivity organosilicone mud. The high-thermal-conductivity organosilicone mud is prepared from the following raw materials: 100 parts of silicone oil and 1000-1200 parts of heat-conducting powder filler in parts by weight, 0.5-1wt% of plasticizer and 1-3wt% of powder surface treating agent in terms of the heat-conducting powder filler, and 1-3wt% of cross-linking agent, 5-10wt% of high temperature resistant pigment and 0.01-0.015wt% of platinum catalyst in terms of the silicone oil. Besides, the invention also discloses a preparation method of the high-thermal-conductivity organosilicone mud. The high-thermal-conductivity organosilicone mud product has the advantages of high thermal conductivity, stable heat transfer property, excellent high temperature resistance, plasticity just as plasticine and the like; the preparation method of the high-thermal-conductivity organosilicone mud is simple; a better thermal-conductivity solution way can be provided for electronic heating components and radiating or other cooling devices.
Owner:GUANGZHOU BAIYUN CHEM IND

Improved solvent cold laid asphalt as well as preparation process and using method thereof

The invention discloses an improved solvent cold laid asphalt as well as a preparation process and using method thereof. The improved solvent cold laid asphalt is at a liquid state under normal temperature or low temperature; cold oil and cold materials can be directly blended for construction on the spot without heating, and the construction can be carried out at high / low temperature seasons and rain / snow weather, and a large number of machinery and labor are not required in the construction process, the construction is simple and convenient and the repair effect is good; traffic can be immediately opened after repair without affecting the travel of people; the improved solvent cold laid asphalt is usually used for daily maintenance, such as pot slot repair and emergency repair; meanwhile, the improved solvent cold laid asphalt has the advantages of no deterioration, no layering and the like after being stored for a long time.
Owner:CHANGAN UNIV

Transverse shear resisting section type self-resetting pier and construction method thereof

The invention relates to a transverse shear resisting section type self-resetting pier and a construction method thereof. The pier comprises a transverse shear resisting pier bottom section, a plurality of transverse shear resisting pier body sections and a transverse shear resisting pier top section. The transverse shear resisting pier bottom section, the transverse shear resisting pier body sections and the transverse shear resisting pier top section are connected through meshing connecting faces and shear resisting bolts. The pier further comprises a plurality of self-resetting components. The self-resetting components penetrates and are anchored to the transverse shear resisting pier bottom section, the transverse shear resisting pier body sections and the transverse shear resisting pier top section through reserved holes. The invention further provides a mounting method of the pier. The self-resetting pier is simple in structure and convenient in material taking. The mounting method is simple, practical, safe and reliable, and the actual application difficult of section type concrete piers is solved.
Owner:TSINGHUA UNIV

Graphene high temperature resistant corrosion-resistant coating for metallic material and preparation method of graphene high temperature resistant corrosion-resistant coating

The invention relates to a graphene high temperature resistant corrosion-resistant coating for a metallic material and a preparation method of the graphene high temperature resistant corrosion-resistant coating. The graphene high temperature resistant corrosion-resistant coating consists of the following components in parts by weight: 6-12 parts of graphene oxide, 20-45 parts of a phenolic resin,2-6 parts of polyvinyl butyral, 1-4 parts of rare earth chloride, 12-30 parts of graphene quantum dots, 2-5 parts of a heat conduction metallic powder, 3-6 parts of carbon nanotubes, 12-30 parts of asolvent, 2-6 parts of an antioxidant, 5-9 parts of a curing agent and 12-18 parts of a defoaming agent, wherein the graphene quantum dots is 2-4nm in size; the solid content of the phenolic resin is 45-55%. According to the graphene high temperature resistant corrosion-resistant coating provided by the invention, by the virtue of the good dispersibility of the graphene quantum dots in solvents andrelatively good non-covalent functions of the graphene quantum dots with graphene sheets, two-dimensional sheet structures of the graphene can be overlapped layer by layer in the coating, a compact physical insulating layer can be formed, and the corrosion resistance of the coating can be improved.
Owner:HUNAN GUOSHENG GRAPHITE TECH CO LTD

Portable mobile section speed measurement realization method and system based on satellite positioning system and GIS (Geographic Information System)

The invention relates to a portable mobile section speed measurement method and system based on satellite positioning system and GIS (Geographic Information System). A set of portable monitoring equipment or other portable or fixed monitoring equipment are adopted. The monitoring equipment is connected with a background processing system through a wireless communication system. The system completes vehicle capture and relevant data detection through front-end equipment and transmits the captured vehicle data information to the background processing system for storage. When other front-end equipment in the system captures the same vehicle, the system automatically analyzes the route distance of two points and judges whether the vehicle is overspeed or not at the section. If the vehicle is overspeed, information such as road sections, section limited speed, section distance, average speed and passing time is automatically superimposed as law enforcement evidences. The innovative section speed measurement method provided by the invention has the advantages that the using efficiency of the equipment is greatly improved and the manufacturing cost of the section speed measurement equipment is reduced; through the dynamic section speed measurement system, low-cost high-efficiency realization method and equipment are provided for flexible road traffic speed management and control demands.
Owner:宝鸡市公安局交通警察支队

Autoclaved aerated concrete building block containing industrial solid waste and preparation method thereof

The invention relates to an autoclaved aerated concrete building block and a preparation method thereof, in particular to an autoclaved aerated concrete building block containing industrial solid waste and a preparation method thereof. The autoclaved aerated concrete building block containing industrial solid waste comprises, by weight percent, 35%-47% of base material, 35%-39% of magnesium chloride solution, 10%-15% of magnesium oxide, 2%-5% of binder, 2%-3% of industrial hydrogen peroxide, 1%-2% of lanthanide rare earth, and 5%-7% of additive. The autoclaved aerated concrete building block has the advantages of fire prevention, water proofing, moth prevention, lightness, crush resistance, bending resistance, high strength, moss avoidance and the like. The proportion of the materials determines the water proofing and moth prevention. The fire prevention meets the standard (class A) of nonflammable materials. The crush resistance is larger than 53Mpa. The bending resistance is larger than 80Mpa. In addition, the industrial solid waste is effectively utilized, wastes are utilized, environment is protected, and the wastes are turned into wealth.
Owner:HUAHONG GROUP YIXING HUAHONG NEW WALL BUILDING MATERIALS

Temporary steel rail supporting device for disassembling and replacing railway ballastless track supporting layers

ActiveCN106049209ALittle impact on drivingQuick remediationRailway track constructionEngineeringTrack disease
The invention relates to the technical field of railway ballastless track disease eliminating, in particular to a temporary steel rail supporting device for disassembling and replacing railway ballastless track supporting layers. The temporary steel rail supporting device comprises steel sleeper beams for supporting temporary passing steel rails and supports fixed on supporting layers below existing rails at the two longitudinal ends of a to-be-constructed area. The steel sleeper beams include two longitudinal beams arranged in the longitudinal direction of the rails and the transverse beams located between the two longitudinal beams, the two ends of the longitudinal beams are laid on the upper end faces of the supports and anchored on the supporting layers below the existing rails at the two longitudinal ends of the to-be-constructed area, the transverse beams are arranged in the transverse direction of the rails, and the two ends of the transverse beams are fixed to the lateral portions of the two longitudinal beams respectively. According to the temporary steel rail supporting device, the steel sleeper beams are used for erecting the construction area overhead and supporting the passing steel rails, a railway line can normally run without stopping, and normal running of the rails is guaranteed; in addition, the disease problem in the supporting layers below the rails and lower structures of the rails can be thoroughly solved, hidden dangers of the rails can be thoroughly eliminated, and high popularization value is achieved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Self-powered intelligent sensor for fluid pipeline

The invention relates to a self-powered intelligent sensor for a fluid pipeline, which is technically characterized by comprising a computer mainboard, a network connector, a sensor, a power supply unit, an electric generator, a storage battery and a turbine, wherein the computer mainboard is respectively connected with the sensor and the network connector; the electric generator is connected with the turbine arranged in the fluid pipeline and is driven to generate power by the turbine; after carrying out voltage stabilization treatment on the electric energy provided by the electric generator, the power supply unit provides power for the computer mainboard, the network connector and the sensor; the storage battery is connected with the power supply unit so as to provide power for the computer mainboard, the network connector and the sensor; or the computer mainboard, the network connector and the sensor are charged by the electric energy provided by the electric generator under the control of the power supply unit. The self-powered intelligent sensor is reasonable in design, solves the problem that the sensor of the fluid pipeline also can be used under the condition without electric power, and has the characteristics of being powerful in functions, wide in usage, convenient to use, free from maintenance and the like, thus playing an important role in the development of Internet of things.
Owner:曲卫晶 +2

Intelligent continuous dynamic compaction machine

The invention discloses an intelligent dynamic compaction machine. The intelligent dynamic compaction machine comprises a loader and a compaction mechanism connected with the loader, wherein a loader is provided with a fuel tank, a fuel pump and a radiator connected with the fuel tank, and an engine connected with the fuel pump; the compaction mechanism is provided with a frame, a fuel cylinder support plate connected with the frame and a fuel cylinder connected with the fuel cylinder support plate, a movable pulley is connected with the top of a piston rod of the fuel cylinder, a soft connector is wound on the movable pulley, one end of the soft connector is fixedly connected with the frame, the other end of the soft connector is connected with a compaction hammer; a compaction operation condition detection system is arranged on the frame, and the loader is furthermore provided with a hydraulic system connected with the fuel pump and an intelligent control system connected with the compaction operation condition detection system and the hydraulic system. The intelligent dynamic compaction machine has characteristics of reasonable design, convenience for use and operation, capability of intelligently continuously compacting, relatively large compaction powder, large compaction thickness and compaction infection depth, high intelligent degree, complete function, stability and reliability in operation, strong practicability and high popularization and application value.
Owner:西安长大公路养护技术有限公司

Colorful selective solar heat reflective coating for asphalt pavement

The invention discloses a colorful selective solar heat reflective coating for an asphalt pavement. The coating comprises the following components in percentage by weight: 60-80 percent of a mixed resin system, 15-35 percent of composite pigment filler, 0.5-2 percent of dispersant, 0.2-3 percent of anti-settling agent and initiator, wherein the mass ratio of the initiator to the coating is between 0.5 and 3. The coating is characterized by rich and durable colors, high heat reflection rate, high abrasion resistance and other advantages, and can be applied to plaza, parking areas, roads and other situations, so that the pavement temperature can be reduced, and the urban road transportation environment can be promoted and an excellent urban image can be built due to rich colors.
Owner:CHANGAN UNIV

Self-spraying type silica gel insulation paint and manufacturing technology thereof

The invention relates to a self-spraying type silica gel insulation paint. The paint is composed of hydroxy-terminated polysiloxane, nano white carbon black, a filling material, an adsorbent, an activator, a crosslinking agent, a coupling agent, a catalyst, a solvent, and a propellant. The added adsorbent can absorb the water to form crystal water, wherein the water exists in the air, which is mixed into the paint during the processing process, solvent, or propellant; thus the crosslinking agent in the tank will not carry out hydrolysis, and the vulcanization and gelation of paint is avoided. The added activator can diffuse to the paint surface at first and carry out reactions with water in the self-spray tank to remove the water; thereby the storage period of the paint in a self-spray tank is effectively prolonged, and the storage period can last at least one year. The provided paint has a self-spray function, the small-package design makes the construction be more flexible and convenient, the operation difficulty in the field and high altitude is alleviated, human resources, material resources, and financial resources are greatly saved, and the construction cost is reduced. The invention also discloses a manufacturing technology of the self-spraying type silica gel insulation paint.
Owner:FUJIAN RUISEN CHEM

Construction technology for line slot reserving of fabricated building prefabricated composite slab

The invention relates to the technical field of building construction, in particular to a construction technology for line slot reserving of a fabricated building prefabricated composite slab. The construction technology comprises the steps that a model and a civil model are comprehensively mounted by adopting a BIM technique, a precise electrical pipeline laying diagram is provided, then at the pouring state of a prefabricated layer of a reserved slab, an electrical junction box is buried, and electrical pipeline reserved slots are reserved, then a cast-in-place layer is poured, and thus a final finished product is obtained. According to the construction technology, it is ensured that enough line pipes are arranged under the premise that the composite slab is not affected by pipeline laying as far as possible.
Owner:ZHEJIANG CONSTR ENG GRP CO LTD

Preparation method of fiber reinforced polymer sheet

The invention provides a preparation method of a fiber reinforced polymer sheet, and relates to a manufacturing method of the fiber reinforced polymer sheet used for enhancing and reinforcing an engineering structure. The preparation method comprises the following steps of: preparing a mixed fiber cloth; performing local reinforcement on two ends; and obtaining a finished product by a process of folding the mixed fiber cloth and prefabricating the two ends into waveform. The fiber reinforced polymer (FRP) sheet prepared by the method is small in width, is easy to be clamped and anchored by a wave-shaped-gear grip anchor, can bring the ultimate strength into full play, can significantly improve the reinforcement effect of the engineering structure, and is simple in manufacturing process, convenient in construction and low in cost. The method provided by the invention has the characteristics of flexible preparation mode, simple process, less production equipment, low cost and the like. The FRP sheet prepared by the method is widely used for enhancing and reinforcing newly-built or built engineering structures, and is particularly suitable to be used as a prestressed material to reinforce bridges or building constructions, and used as a stay cable, a suspension rod and the like for manufacturing bridges.
Owner:重庆固桥智能科技研究院有限公司

Suspended-ceiling assembled steel frame transfer story

The invention relates to a suspended-ceiling assembled steel frame transfer story which comprises transfer story vertical rods, transfer story transverse rods, lead screws, multiple first hanging parts, second hanging parts, clamping parts, main keels, auxiliary keels and fasteners. The transfer story vertical rods and the transfer story transverse rods are connected, the first hanging parts are connected with the transfer story transverse rods, the multiple hanging parts are arranged at intervals, the lead screws are connected with the first hanging parts through the fastening parts, the second hanging parts are connected with the lead screws, the main keels are installed on the second hanging parts, the auxiliary keels are connected with the main keels through the clamping parts, and theauxiliary keels are located below the main keels. The suspended-ceiling assembled steel frame transfer story utilizes a physical structure form to install and fix a keel system on a steel angle transfer story. Due to the fact that a penetrating-plugging hook mode is adopted for the first hanging parts and the second hanging parts, the separation distances of the hanging parts can be optionally adjusted on steel angles, construction is flexible, quick and convenient, and meanwhile a certain space exists in each hanging part, so that effective adjustment of the flatness of a suspended ceiling can be achieved by utilizing fastening nuts.
Owner:GOLD MANTIS CONSTR DECORATION

Small tubular pile reinforcement system for weak base of tunnel and method for constructing small tubular pile reinforcement system

InactiveCN106246200ALarge processing depthControl uneven settlement deformationUnderground chambersFoundation engineeringTerrainIn plane
The invention relates to a small tubular pile reinforcement system for a weak base of a tunnel and a method for constructing the small tubular pile reinforcement system. Foundations of a tunnel portal at a bridge and tunnel joint directly extend into terrains such as deep valleys in a direct transition manner, the terrains correspond to a bridge, and treatment on the foundations of the soft base at the bridge and tunnel joint has important significance on the stability of integral construction structures at a bridge and tunnel transition position. The small tubular pile reinforcement system is characterized in that a concrete supporting plate is arranged below a tunnel inverted arch structure of the tunnel portal at the bridge and tunnel joint, and steel tubular piles which are arrayed are arranged in the foundations below the concrete supporting plate; the depths of the steel tubular piles are gradually inwardly reduced from the portal, and the steel tubular piles are stepped along the directions of lines and are arranged are arranged in a quincuncial manner in planes. The small tubular pile reinforcement system and the method have the advantages that the small tubular pile reinforcement system is large in foundation treatment depth and small in treatment area, the bearing capacity of the weak foundations can be obviously improved after the small tubular pile reinforcement system is constructed, settlement and deformation of the foundations can be controlled, and normal use of the structures can be guaranteed.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Self-repairing waterborne epoxy/asphalt compound waterproof coating and preparation method thereof

The invention relates to a self-repairing waterborne epoxy / asphalt compound waterproof coating and a preparation method thereof, belonging to the technical field of a coating. According to the technical scheme, the method comprises the following steps: utilizing polyether polyol and MDI-50 to compound a polyurethane prepolymer with -NCO content of 20%; dipping 30-50 micron of water absorbent in the polyurethane prepolymer till being saturated; dispersing in paraffin molten mass; atomizing, quickly freezing and generating paraffin for wrapping a high water absorbent microcapsule containing the polyurethane prepolymer; dispersing the microcapsule in water, thereby forming a microcapsule dispersing solution containing the high water absorbent microcapsule; mixing the water-borne epoxy resin emulsion, waterborne epoxy curing agent, emulsified asphalt, butadiene-acrylonitrile latex, microcapsule dispersing solution, padding and additives and curing into a film, thereby forming the waterborne epoxy / asphalt compound waterproof coating with a self-repairing function. When the waterproof material is scratched and cracked, the high water absorbent in the microcapsule can quickly absorb water for swelling and the polyurethane prepolymer can participate into chain extension reaction for generating solid while meeting water, so that the purposes of quickly repairing the cracks and preventing water leakage can be achieved.
Owner:TAIYUAN LUBANG TECH CO LTD

Combined elliptical section component and processing method thereof

ActiveCN102635198AMeet the multi-directional force requirementsReduce steel consumptionStrutsGirdersEngineeringStructural component
The invention relates to a steel structural component, in particular to a combined elliptical section component and a processing method thereof, which are applicable to the fields of modeling steel structures and large-span steel structure. The combined elliptical section component comprises a bottom support and a web plate, a connector is disposed on the upper portion of the web plate, the lower portion of the web plate is disposed in the bottom support, the bottom support is fixed with the web plate via a splicing mechanism, the splicing mechanism comprises transverse reinforcing plates, the transverse reinforcing plates which are perpendicular to the web plate are respectively inserted into the two ends of the bottom of the web plate, side walls of the bottoms of the transverse reinforcing plates cling to the inner wall of the bottom support in a matched manner, and the bottom support, the transverse reinforcing plates and the web plate are packaged via close plates. The combined elliptical section component and the processing method thereof have the advantages that the structure is simple, a supporting performance is fine, stress is reasonable, cost is reduced, and construction is convenient and flexible.
Owner:浙江东南网架股份有限公司
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