54results about How to "Applicable construction" patented technology

A water curing asphalt polyurethane composite waterproof coating mainly comprises a component A and a component B. In terms of mass part, the component A consists of 60-85 parts of polyether polyol, 10-25 parts of isocyanate and 2-10 parts of plasticizer; and the component B consists of 40-70 parts of petroleum asphalt, 5-20 parts of compatilizer, 6-25 parts of plasticizer, 0.5-4 parts of stabilizer, 1-12 parts of water, 25-55 parts of filler, 8-20 parts of calcium hydroxide, 0.1-2 parts of catalyst and the like. When the water curing asphalt polyurethane composite waterproof coating is in use, the component A and the component B are uniformly mixed and the mixture is directly smeared on a waterproof datum plane of a building and is cured to form a waterproof film with the advantages of high strength, high elasticity and favorable low-temperature flexibility. The water curing asphalt polyurethane composite waterproof coating disclosed by the invention is simple in production process, low in cost and free from of tar or any organic solvent, meets the requirement of environment friendliness, is suitable for water resistance, seepage resistance and moisture resistance of construction engineering such as roofs, basements, bridges, tunnels and culverts and is especially suitable for waterproof engineering of damp datum planes.

The invention discloses no-fines recycled-aggregate pervious concrete for district roads and a preparation method and belongs to the field of pervious concrete. The no-fines recycled-aggregate pervious concrete is prepared from the components as follows: 1450-1600 kg/m<3> of recycled building concrete aggregate, 300-450 kg/m<3> of cement, 78-117 kg/m<3> of composite mineral admixture, 3.8-5.6 kg/m<3> of an additive and 105-145 kg/m<3> of water. The water permeability of the prepared pervious concrete is not less than 5 mm/s, the continuous porosity is not less than 10 percent, the compressive strength is not less than 20 MPa, the rupture strength is not less than 2.5 MPa, and the mass loss rate after 25 times of freezing and thawing cycles is at most 5 percent. The recycled aggregate with the concrete structure is utilized, the pervious concrete can improve environment, and the both are combined so as to change waste into wealth, conserve energy, reduce emission, reduce impounded surface water in a rainy day, supplement ground water, and reduce the urban heat island effect. The preparation method is simple, efficient, green and environment-friendly and suitable for reconstructing and constructing of roads in urban residential districts.

The invention discloses a modular cast-in-place construction method for a large-diameter root foundation, which is characterized by comprises the following steps of: firstly, constructing a pile formation hole at the position of a set root foundation by a drilling machine; sectionally manufacturing each section of FRP (Fiber Reinforce Plastic) combination structure, sequentially placing each section of FRP combination structure into the pile formation hole, welding adjacent sections of FRP combination structures by reinforcing bars or connecting adjacent sections of FRP combination structures by direct screw thread sleeves, winding FRP on the peripheries of the junctions to form a hollow pile cylinder, forming a pile cylinder concrete inner wall in the hollow pile cylinder, and pouring pile cylinder bottom plate concrete to carry out bottom sealing so as to form a ring-shaped cylinder with the sealed bottom; ejecting a root key into each root key steel bushing; and finally pouring lining concrete on the periphery of the pile cylinder concrete inner wall and pouring a top cover after the strength of the lining concrete is met so as to form a foundation platform. Due to the adoption of the modular cast-in-place construction method for the large-diameter root foundation, the construction can be effectively and conveniently carried out and the construction efficiency is improved.

This invention relates to a type of halogen-free flame retardant polymeric compound and modified asphalt, and the method. The feature is it composed by 5-15portions halogen-free flame retardant agent, 2-7portions polymeric compound and 78-93portions asphalt stock, accounting weight. The method of halogen-free flame retardant polymeric compound and modified asphalt includes steps as follow: first add polymeric compound into fusing asphalt, keep 150-200deg.C, mix for 2-4hours at 1000-6000rpm; then add halogen-free composite flame retardant to fusing polymeric compound modified asphalt, keep the same rotation speed 0.5-1hour. This invention has good physical property and good flame retardant property, and no deleterious gas such as halogen hydride when burning.

The invention provides a low groove-type steel and concrete composite beam. The composite beam comprises at least two T-shaped steel beams and a bridge deck slab arranged on the T-shaped steel beams and perpendicularly connected with webs of the T-shaped steel beams, wherein the steel wing edges of every two adjacent T-shaped steel beams are connected, the ends of the webs of the T-shaped steel beams are of tooth structures, and the tooth structures are located in the bridge deck slab.

The invention provides a liquefied natural gas filling station BOG utilization system. A low-temperature emergency cut-off valve, a BOG carburetor, a low-temperature stop valve, a pressure reducing valve, a pressure gauge, a temperature gauge, a temperature transmitter and a natural gas compressor are sequentially connected with an inlet of a main pipeline, the low-temperature stop valve is in parallel connection with a recuperator, the pressure reducing valve is in parallel connection with a bypass stop valve, and the liquefied natural gas filling station BOG utilization system further comprises a combustible gas alarm apparatus. The liquefied natural gas filling station BOG utilization system has the advantages that after being heated, the BOG is pressurized into CNG, energy resources are saved, economic benefits are brought to a user, the device is small in occupied area and low in cost, and therefore large-scale popularization is facilitated.

The invention discloses a method for measuring a vehicle speed by utilizing equidistant camera of a vidicon. A wide-angle vidicon vertical to the ground is installed at the position with a certain distance from the ground, and the vehicle driving speed is calculated by utilizing time for a vehicle to pass the road surface distance set by the wide-angle vidicon in the driving process. According to the method, the functions of measuring speed and retaining images are simultaneously achieved by just using one wide-angle vidicon, thereby saving a great quantity of construction cost. In addition, when the wide-angle vidicon fails, the vehicle speed can be immediately stopped to be measure at a speed measuring spot, thus avoiding erroneous judgement, and reducing the occurrence of traffic disputes.

The invention discloses a distributed type alternating-current charging system. The system comprises a centralized controller used for acquiring charging information and payment information, a power distribution cabinet, charging piles and a cloud platform, wherein the charging information at least comprises user identity information, selected charging pile codes, the charging power and charging time; the charging information and the payment information are sent to the cloud platform; after a charging permission instruction sent by the cloud platform is acquired, a control instruction is sentto metering and billing modules in the power distribution cabinet according to the charging information; the power distribution cabinet comprises the metering and billing modules corresponding to thecharging piles one to one; the metering and billing modules are connected between an external power supply and the charging piles, the metering and billing modules receive control instructions sent bythe centralized controller and control the on-off state between the corresponding charging piles and the external power supply; the charging piles are used for charging when the external power supplyis connected; the cloud platform is used for sending the charging permission instruction after confirming the charging information and the payment information. The system is used for solving the problems of centralized configuration and centralized management.

The invention discloses an ultraviolet-resistant polymer composite waterproof coating. The ultraviolet-resistant polymer composite waterproof coating is prepared from the following components in partsby weight: 5 to 10 parts of ethylene glycol, 5 to 8 parts of amyl acetate, 5 to 15 parts of acrylic emulsion, 10 to 25 parts of polyurethane modified acrylate waterproof emulsion, 1 to 5 parts of organosilicone waterproof agent, 0.5 to 3 parts of silicon dioxide, 20 to 40 parts of pigment filler, 0 to 0.5 part of sterilizing preservative, 0 to 1 part of anti-aging agent, 0.2 to 0.8 part of dispersant, 0.4 to 1 part of defoaming agent, 0.5 to 2 parts of filming additive, 0.6 to 3 parts of hydroxyethyl cellulose, 0.3 to 1 part of ammonium metavanadate, and 10 to 30 parts of water. The ultraviolet-resistant polymer composite waterproof coating has the advantages that the elasticity is high, and the waterproof property is better; the poison and odor are avoided, and the safe and environment-friendly effects are realized; the water-resistant property, alkaline-resistant property and anti-ultraviolet ability are strong, the elongation rate at break and the tensile strength are higher, and the automatic repairing function is realized.

The invention provides a pear compact planting tree shape with high photosynthetic efficiency and a shaping and pruning method, relates to the technical field of fruit tree cultivation, and solves thetechnical problem of declining of tree crown daylighting rate due to high density planting. The device comprises two plant central trunks, the two plant central trunks extend in opposite directions and are fixed to form X-shaped double trunks, the transverse horizontal spacing between the two central trunks on the ground is 25-35 cm, and the distance between the adjacent X-shaped double trunks inthe same row is 0.8-1.2 m. The tree shape with high photosynthetic efficiency realizes shaping and pruning of X-shaped double-trunk plants by determining fixedly planting points, erecting and stretching lines, fixedly planting, cultivating strong central trunks, cutting buds to promote branching, rack loading, pruning and the like. The utilization rate of light energy of the tree body is improved, improvement of the fruit quality is facilitated, high-density cultivation can improve the efficiency of land use, the yield per mu is greatly increased, the problems of inadequate pesticide application, bagging and difficult fruit picking caused by too high tree body are solved, and the tree shape is especially suitable for construction of sightseeing picking gardens and picking needs.

The invention discloses asphalt-containing waterproof mortar and a preparation method. The asphalt-containing waterproof mortar comprises the following components in parts by weight: 5-15 parts of anacrylic emulsion, 30 parts of asphalt, 10-25 parts of a polyurethane modified acrylate waterproof emulsion, 1-5 parts of an organosilicone waterproofing agent, 0.5-3 parts of silicon dioxide, 20-40 parts of a pigment and filler, 0-0.5 part of a bactericidal preservative, 0-1 part of an anti-aging agent, 0.2-0.8 part of a dispersing agent, 0.4-1 part of polyethylene glycol, 0.5-2 parts of a film-forming aid, 0.6-3 parts of hydroxyethyl cellulose, 0.3-1 part of ammonium metavanadate and 10-30 parts of water. The asphalt-containing waterproof mortar has excellent high elasticity and excellent waterproof performance; a product is non-toxic, tasteless, safe and environmentally friendly; a coating film is strong in water resistance, alkali resistance and ultraviolet resistance and has relativelyhigh elongation at break, relatively high tensile strength and a relatively high automatic repairing function.

The invention provides a sliding type retaining device for construction cradles. The device comprises at least one group of sliding type single retaining parts. Each sliding type single retaining part comprises a shear-resistant arm, a base and a sliding structure, wherein the shear-resistant arm comprises a shear-resistant arm body; the base comprises a base body for fixing and long hole groups in the base body, and the length direction of the long hole groups is identical to a traveling direction of the construction cradles; the sliding structure comprises a supporting plate and a contact component, the supporting plate is movably arranged on the base body, the contact component contacts with the shear-resistant arm body, and the supporting plate is provided with mounting hole groups matched with the long hole groups. The sliding type retaining device is stable in structure, effective in retaining, convenient and quick in mounting, simple in operation, attractive in appearance, economical, available for bidirectional adjustment in occurrence of pre-embedding errors, wide in application range and suitable for construction of any construction cradles. The invention further discloses a retaining method of the sliding type retaining device. By mounting of the shear-resistant arms and the bases and adjustment of bolts, the sliding structures can closely fit the corresponding shear-resistant arms to complete a retaining process, and great retaining effects are achieved.

The invention discloses an underground space expansion anchor rod pile positioner. The underground space expansion anchor rod pile positioner comprises a steel plate, a positioning hole, a positioning bolt and positioning nuts; the steel plate, the positioning hole, the positioning bolt and the positioning nuts interact to precisely position an anchor rod pile sleeve; the steel plate is fixed on an operation platform in an orifice position of an anchor rod pile hole; the steel plate is opened to form the positioning hole; multiple positioning nuts are uniformly distributed at the outer periphery of the positioning hole in the steel plate in the annular direction; and the positioning nuts are connected with the steel plate through welding. The underground space expansion anchor rod pile positioner adopts the positioning bolt to precisely position the anchor rod pile sleeve, and is suitable for construction of underground space expansion anchor rod piles.

The invention discloses an LED handheld illuminating device. The LED handheld illuminating device comprises an LED light source, a lamp cover, a shell, a lamp cap and a rear cover; the rear cover is arranged at the lower end of the shell, and the lamp cover is connected to the front end; the lamp cap is arranged at the front end of the lamp cover; a power supply bin is arranged at the lower end part in the shell; a magnet and a spring electrode are arranged between the power supply bin and the rear cover; a switch is arranged at the front end of the power supply bin, and is fixed on the shell through a switch fixing piece; an LED lamp strip is arranged in the lamp cover; the two ends of the LED lamp strip are fixed in the lamp cover through fixing pieces; the lamp cover and the lamp cap are connected through a radiator; the LED light source is arranged on the radiator; and a lens is arranged on the LED light source. The LED handheld illuminating device is reasonable in design and compact in structure, is provided with multiple light sources, can irradiate at multiple angles at the same time, can select the light sources according to the need, and is suitable for construction or operation illumination.

The invention relates to a frog lifting tool applied to the field of railway construction devices. Subsidiary lifting beams are arranged at the lower sides of two main lifting beams of the frog lifting tool. Two hoisting assemblies are symmetrically arranged on sliding rods arranged inside each subsidiary lifting beam. Each hoisting assembly comprises a sliding sleeve. Each sliding sleeve is connected to two parallel connecting plates. A sliding portion is arranged at the lower end of each connecting plate. Each sliding portion is arranged in a longitudinal sliding groove in a sliding manner,wherein each longitudinal sliding groove is formed in a lower support frame. A clamping head is hinged to the lower side of each lower support frame. The clamping heads of the hoisting assemblies arearranged in a face-to-face manner, so that a clamping opening for clamping a frog is formed. A stroke shutter is further arranged between every two connecting plates. An adjustment threaded rod is arranged inside each subsidiary lifting beam in a manner that each adjustment threaded rod is parallel with the corresponding sliding rod. A nut is arranged on each adjustment threaded rod in an engagedmanner. Each nut is connected with the corresponding connecting plate. In the working process, when the main lifting beams are pulled up and laid down once, the stroke shutters act once, and thereforethe clamping heads can switch between the locked state and the released state; hoisting and laying-down of the frogs are completed automatically; and the frog lifting tool is applicable to railway construction.

The invention relates to an adjustable arc-shaped beam cylindrical node assembling clamp and a construction method thereof. The arc-shaped clamp is formed by superposing halves of two steel plates which are 4mm thick and 100mm wide; a superposed part can adjust the width of the beam section at a beam cylindrical node and is fixed by a screw with the diameter of phi 12; one side of a steel plate which is 200mm wide is fixed on a node template, and the other side of the steel plate is fixed by an opposite-pull screw; two sides of a beam are symmetrically arranged; holes are formed in the steel plate which is 200mm wide along the length direction; two rows of large holes in the outer side are formed in a 45-degree angle manner and at intervals of 50mm; a row of small holes in the inner side are arranged at intervals of 100mm; the large holes in the outer side are formed by that a beam bottom and the node which have a height difference along the height direction of the beam are connected with each other; and the clamp can randomly adjust the intervals from the large holes in the outer side.

The invention discloses an anchorage design and construction method which is characterized in that an original permanent structure pile foundation of a bridge is utilized for design, pile foundations are additionally arranged at anchorage positions at the two sides of the bridge, then concrete bearing platforms are poured at the tops of the newly-added structure pile foundations and the permanent structure pile foundations, the pile foundations are embedded into the bearing platforms, the front bearing platform and the rear bearing platform are connected through a straining beam, a main cable passes through the anchorage through the embedded conduit by using the temporary zipper and is anchored on the rear anchor surface, and the anchorage is used for resisting the pulling force of the main cable. The anchorage is arranged in the mode that the permanent and temporary combined pile group foundation and the bearing platform are combined, a conventional gravity type anchorage is replaced, stress is clear, construction is convenient, the manufacturing cost is low, and development of the bridge industry can be promoted.

The invention provides a sinking type air shaft used for an underground space building. The top surface of the sinking type air shaft is a section of the outdoor road surface, and other parts of the outdoor road surface are all sunk into the ground. In the sinking type air shaft used for the underground space building, the position below the top surface is fixedly connected with the top surface to form four side wall plates of an air shaft upper ventilating cavity, roadside drainage ditches covered with water perforated strainers and parallel to the positions above a road are formed in the outer sides of two side wall plates parallel to the road, and air guiding windows communicating with the roadside drainage ditches and the upper ventilating cavity are formed in the upper portions of the two side wall plates; and the lower portion of the upper ventilating cavity finally communicates with an air and smoke discharging draught fan in the underground space building. The sinking type air shaft used for the underground space building has the advantages that the number of times of maintenance is extremely few, and walking is smooth and safe when pedestrians walk on the air shaft, and driving is smooth and safe when vehicles are driven on the air shaft. The sinking type air shaft is applicable to building of sinking type air shafts of various underground buildings which need ventilating such as underground stores and underground warehouses.

The invention discloses a 10 kV flame-retardant all-insulated multi-branch intermediate-break fiber splicing closure, comprising a flame-retardant insulated splicing closure body that is at least provided with a fiber composite elevated conductor main inlet and a fixture and is at least provided with a fiber composite elevated conductor main outlet and a fixture, as well as two fiber composite elevated conductor branch inlets and fixtures. Fiber portions of a fiber composite elevated conductor main incoming line, a fiber composite elevated conductor main outgoing line and fiber composite elevated conductor incoming branches are spliced in the flame-retardant insulated splicing closure body, a power carrier portion of each fiber composite elevated conductor branch and that of the fiber composite elevator conductor main outgoing line are connected or disconnected outside the flame-retardant insulated splicing closure body through an intelligent control switch. One-in and multiple-out offiber composite elevator conductors is achieved via the flame-retardant all-insulated splicing box, and construction of 10 kV voltage multi-branch line construction is advocated precedently.

The invention provides an unsaturated fluorocarbon, a preparation method and application thereof. A material prepared from the unsaturated fluorocarbon has excellent dielectric and mechanical properties, also the preparation process is simple, the raw material price is low, the investment can be effectively reduced and the cost is lowered.