Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

26517results about How to "Improve construction efficiency" patented technology

Assembled building deepening design method based on BII software

The invention provides an assembled building deepening design method based on BII software. The assembled building deepening design method comprises the following steps of 1, conducting preliminary modeling and collision analysis; 2, conducting model deepening design; 3, automatically generating member production drawing through a model; 4, conducting engineering amount statistics and processing data management; 5, designing a mold of a prefabricated member; 6, conducting transportation vehicle-loading simulating and optimizing according to the member weight and the profile size; 7, conductingfield hoisting and simulating of the prefabricated member, and optimizing the hoisting sequence. Aiming at defects of an existing prefabricated member deepening design method, it is adopted that firstly, a three-dimensional model is modeled before deepening design drawing is drawn, a three-dimensional examination method is adopted, after the space conflict relation between the prefabricated member is excluded, the drawing is generated, a large amount of modification of the drawing is avoided, parts in the model all have the accurate three-dimensional size, material information and member subordination relationship, a member material list can be generated simply by conveying the information, and thus an accurate and efficient effect is achieved.
Owner:GUANGDONG JIAN YUAN CONSTR ASSEMBLY IND CO LTD

High-altitude drill positioning method of building

The invention discloses a high-altitude drill positioning method of a building, which comprises a high-altitude marking device, a high-altitude drilling device and a high-altitude tightening device. The high-altitude drill positioning method comprises the following steps that when a plurality of fixing holes need to be drilled in the top surface of the building, the length of an adjustment rod of the high-altitude marking device is adjusted to be equal to the distance between any two fixing holes; a support rod of the high-altitude marking device is adjusted, so that the altitude from the top end of a marking rod to the ground is equal to the altitude from the fixing holes to the ground; the marking end head is pressed to the top surface, so as to draw marking points of the two fixing holes; the high-altitude drilling device is placed below the fixing holes, and a handle is pressed downward, so that a drill which is fixedly arranged on drilling equipment aligns with the marking points of the fixing holes; the drilling equipment is turned on to drill the holes which conform to a size; one end of an expansion bolt, which is provided with a nut, is inserted into the top end of the high-altitude tightening device; the expansion end of the bolt is inserted into a drilled fixing hole, and then a handle of the high-altitude tightening device is rotated to tighten the expansion bolt; and the steps are repeated, so as to complete the drill tightening operation of the remaining fixing holes. According to the high-altitude drill positioning method, the disadvantages of low construction quality and large difficulty because no reliable application point exists at high altitude are overcome, the construction quality is guaranteed, various potential safety hazards due to high-altitude construction of construction personnel are avoided, and the construction efficiency is greatly increased.
Owner:CHINA RAILWAY 19 BUREAU GRP ELECTRIC ENG

Construction method for reinforced concrete prefabricated house

The invention provides a construction method for a reinforced concrete prefabricated house. The method comprises the following steps of constructing a foundation; mounting prefabricated wallboards; casting in situ T-shaped, L-shaped and inline vertical heel posts; pouring micro-expansion mortar into vertical steel tie preformed holes in the upper and lower ends of the prefabricated wallboards; mounting reinforced concrete prefabricated superimposed beams; mounting reinforced concrete prefabricated stairs and flat stepping plates; mounting prefabricated superimposed floor slabs on the prefabricated superimposed beams; welding and binding corresponding reinforcements exposed from the prefabricated superimposed floor slabs, the upper ends of the prefabricated superimposed beams and the prefabricated wallboards into a whole, and inserting vertical anchor bars for fixing the upper and lower end parts of the prefabricated superimposed beams and the wallboards, and casting self-compacting concrete on the upper parts of the prefabricated superimposed floor slabs. A 100m-high building can be constructed in an 8 earthquake fortification region such as Beijing by sequential and cyclic construction to a design top layer from bottom to top. According to the method, a technical index of building energy efficiency of 75 percent can be achieved, and the development of a prefabricated house construction technology can be accelerated.
Owner:洪都建设集团有限公司

Concrete pumping equipment and arm support state control system thereof

The invention discloses an arm support state control system, which comprises a detection device (1), a storage device (2), a control device (3) and an actuating device (4), wherein the detection device (1) is used for detecting the position state and vibration state of an arm support (8) of concrete pumping equipment to obtain a position state signal and a vibration signal; the storage device (2) is used for storing the vibration signal to obtain the periodical vibration signal of the arm support (8); the control device (3) is used for receiving the position state signal, the vibration signal and the periodical vibration signal and obtaining a control instruction according to a preset arm support vibration range, a preset advanced regulation time and a preset control policy; and the actuating device (4) is used for changing the state according to the control instruction and controlling the arm support (8) to act the preset arm support vibration range. The arm support state control system provided by the invention can avoid control error caused by time delay in the detection process of the detection device and the actuating process of the actuating device, absorb vibration in time and improve the operation convenience of the arm support. The invention also discloses concrete pumping equipment.
Owner:SANY AUTOMOBILE MFG CO LTD

Pile imbedded helix tube type ground source heat pump system and heat transferring model of terrestrial heat exchanger thereof

The invention discloses a pile-embedding spiral pipe typed ground source heat pump system and a heat transmission model of a geothermal heat exchanger thereof. A solid cylindrical surface heat source model is put forward for the first time and two analytic solution expressions of the heat transmission model is worked out by the Green function method. The system can sufficiently utilizes the underground area of a building, saves a great amount of expenses for boring and pipe embedding, reduces the initial investment of the ground source heat pump system, improves the construction efficiency and has convenient and quick construction. Furthermore, the heat transmission model of the pile-embedding spiral pipe geothermal heat exchanger can quantitatively analyze the effects of all parameters of the pile-embedding spiral pipe geothermal heat exchanger on the heat transmission capability and provides a basis for the engineering design. The structure of the pile-embedding spiral pipe typed ground source heat pump system comprises the geothermal heat exchanger which is connected with an air conditioning heat pump system by pipelines; the air conditioning heat pump system is connected with a conveying and end system in the building; the geothermal heat exchangers have the quantity of more than one; and each geothermal heat exchanger forms the pile-embedding spiral pipe-typed geothermal heat exchanger by building pile foundations and spiral pipes which are embedded in the pipe foundations.
Owner:山东中瑞新能源科技有限公司

Bicomponent high-strength sprayed polyurethane waterproof paint

The invention provides bicomponent high-strength sprayed polyurethane waterproof paint. The paint consists of a component A and a component B according to the volume ratio of 1 to 1, wherein the component A is a semi-prepolymer synthesized by polyisocyanate with low functionality and polyether glycol; according to weight portion, the component A comprises 50 to 80 portions of the polyisocyanate with functionality of between 2.0 and 2.4 and 20 to 50 portions of the polyether glycol with functionality of between 2 and 4; and the component B comprises 40 to 84 portions of the polyether polyol or amino-terminated polyether or mixture of the polyether polyol and the amino-terminated polyether, 10 to 40 portions of amine chain extender or alcohol chain extender or mixture of the amine chain extender or the alcohol chain extender and 0 to 20 portions of pigment filler and additive. The bicomponent high-strength sprayed polyurethane waterproof paint has mechanical performance close to or even higher than that of a waterproof coiled material, adopts a spraying construction method, is convenient and high-efficient and greatly prolongs the service life of the waterproof material; and a solvent-free system also greatly ensures the environment-friendly requirement of the material, so that the performance is more reliable, high efficient and environment-friendly. Compared with a conventional waterproof material, the bicomponent high-strength sprayed polyurethane waterproof paint has high strength and elongation rate.
Owner:CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP

Construction method for tunnel continuous mucking, lining and excavation synchronization

The invention provides a construction method for the continuous mucking, lining and excavation synchrony of tunnels (caves), which comprises the following steps: the front end of a belt conveyer is positioned in an excavation work area, the belt conveyer from the excavation work area to the lining area of a steel moulding plate trolley is positioned on an inverted arch precast block (6) or hung at the top of the tunnel; the belt conveyer in front of the steel moulding plate trolley causes a conveyer (7) to be positioned at one internal side of a moulding plate trolley gantry (4) when passing through the moulding plate trolley on the basis of being positioned on the inverted arch precast block or a cast-in-situ inverted arch; a falsework (14) is arranged in front of the moulding plate trolley (2) and positioned on a track (12) which is connected in front of the self-circulation of the steel moulding plate trolley; and the belt conveyer is positioned on the inverted arch precast block or hung at the top of the tunnel from a lining operating area to a tunnel entrance after passing through the steel moulding plate trolley. The construction method can realize the continuous mucking of the belt conveyer and the synchronous lining of the moulding plate trolley along with the excavation of the tunnel in tunnel construction and cause transport equipment such as cars or the track to transport facilities and other materials needed by tunnel construction.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD

Disk-shaped roller cutter ring and manufacture method thereof

The invention discloses a disk-shaped roller cutter ring with high hardness, good toughness and excellent comprehensive performance. The disk-shaped roller cutter ring comprises the following ingredients of: 0.46-0.56% of C, 0.80-1.20% of Si, 0.20-0.65% of Mn, 5.00-5.80% of Cr, 1.15%-1.55% of Mo, 0.85-1.40% of V and the balance Fe and impurities, wherein the content of P is no more than 0.02%, and the content of S is no more than 0.01%; and the overall hardness of the cutter ring is HRC55-61 (Rockwell Hardness C55-61), or the hardness is of graded distribution, i.e. the hardness of a working edge area is HRC55-61, the hardness of a transition surface area is HRC50-57, and the hardness of a step assembly surface area and an inner ring is HRC44-51. A preparation method of the disk-shaped roller cutter ring comprises the following steps of: smelting the raw materials in an electric furnace; carrying out electroslag remelting; preforging; carrying out die forging; carrying out slow cooling; annealing; carrying out rough machining to obtain a disk-shaped roller cutter ring rough blank; carrying out high-temperature vacuum hardening and two-time high-temperature tempering on the cutter ring rough blank; carrying out low-temperature destressing treatment; carrying out fine finishing to obtain the cutter ring with the overall hardness of HRC55-61, wherein the cutter ring with the overall hardness of HRC55-61 is applicable to the tunneling of a hard rock formation by a shield tunneling machine; or carrying out medium-frequency induction tempering treatment prior to the low-temperature destressing treatment to obtain the cutter ring with graded-distribution hardness, wherein the cutter ring with the graded-distribution hardness is applicable to the tunneling of a rock formation with an upper soft part and a lower hard part.
Owner:ZHUZHOU HARD ALLOY GRP CO LTD

Multifunctional tamping machine

The invention discloses a multifunctional tamping machine which comprises a bottom plate, a first bracket device, a cylinder device, a second bracket device, a mobile device and a compaction device, wherein a rolling wheel is arranged on the bottom plate; the first bracket device is composed of a first supporting rod, a first slanting rod, a holding frame, a first bracket, a first positioning rod and a first transverse rod; the cylinder device is composed of a cylinder, a push rod, a push block, a second transverse rod, a second slanting rod, a third transverse rod and a third slanting rod; the second bracket device is composed of a second supporting rod, a second bracket, a third bracket, a fourth slanting rod and a first sliding block; the mobile device is composed of a mobile rod, a fixed block, a first spring, a buffer ring and a first vertical rod; and the compaction device is composed of a horizontal plate, a second spring, a fourth transverse rod, a second vertical rod, a rotational block, a compaction plate and a third spring. The multifunctional tamping machine can rapidly and effectively compact the inclined surface, is remarkable in compaction effect and good in effect, can completely meet the needs for existing small-sized compaction and ensures the construction efficiency to be greatly improved.
Owner:中建路桥集团第六工程有限公司

Tunnel arch installation vehicle

The invention discloses a tunnel arch center installation operation vehicle. The tunnel arch center installation operation vehicle comprises a machine frame, a travelling mechanism, a traction mechanism, an arch center lifting device for lifting tunnel arch centers which are arranged on the rear part of the machine frame and are needed to be installed one by one, and an arch center transferring mechanism for transferring the arch centers which are lifted by the arch center lifting device one by one through alignment and adjustment; the arch center transferring mechanism comprises a translating trolley which can move forward and backward on the upper part of the machine frame, a lifting mechanism for stably lifting the tunnel arch centers, and a left and right movement mechanism for driving the lifting mechanism to synchronously move left and right; and the translating trolley, the left and right movement mechanism, and the lifting mechanism align and adjust the tunnel arch centers front and back, right and left and up and down respectively. The tunnel arch center installation operation vehicle has a reasonable design, is convenient to assemble, and easy and convenient to operate, safe and reliable in working performance, and good in a using effect, and can solve the problems of large working difficulty in movement and accurate positioning of steel arch centers after lifting during the installation of the conventional steel arch centers, low installation efficiency, large labor intensity and the like.
Owner:CHINA RAILWAY FIRST GRP CO LTD

Construction method of large-span subway station main body by using arched cover method and station main body structure

The invention discloses a construction method of a large-span subway station main body by using an arched cover method and a station main body structure. The construction method comprises the following steps: 1. making first-phase preparations; 2. excavating main body pilot tunnels at the left side and the right side, and carrying out primary support and top beam construction; 3. excavating a middle-part main body pilot tunnel, carrying out primary support and arch buckling construction, and refilling the earthwork; 4. carrying out earthwork excavation on a main body structure in the station, and prestressing force anchor cable construction; 5. carrying out secondary lining construction on the main body structure in the station; and 6. carrying out secondary lining and arch buckling construction on the station main body. The station main body structure comprises the main body structure in the station, a central post, a central plate and a main body arch part, wherein, the main body arch part comprises a middle arch fragment and two side arch fragments respectively arranged in the two side main body pilot tunnels formed by excavation in advance; and the main body arch part comprises a primary support system and a station main body arch buckling secondary lining structure from the outside to the inside. The station main body structure provided by the invention has reasonable design, simple construction steps, convenience in realization, small construction difficulty and rapid construction speed; the subway station formed by the construction method has a stable structure and a good use effect.
Owner:CHINA RAILWAY FIRST GRP CO LTD +1

Construction technology of steel sheet pile cofferdam for Yellow River Channel internal support table construction

ActiveCN101838993ASolve the water stop problemReasonable designBulkheads/pilesCofferdamSheet pile
The invention discloses a construction technology of a steel sheet pile cofferdam for Yellow River Channel internal support table construction. A construction support table is an underwater support table arranged in a Yellow River Channel. The technology comprises the following steps of firstly, determining a structure and the size of a used cofferdam in the process of underwater support table construction; secondly, surveying and setting out; thirdly, constructing the cofferdam; fourthly, constructing a bored pile at the bottom of the support table; fifthly, constructing the support table: carrying out forming construction of the underwater support table on the top of the bored pile after construction when the bored pile construction is finished, and finishing integrative construction of the bored pile and the underwater support table; and sixthly, constructing a pier column at the upper part of the support table. The invention has the advantages of reasonable design, convenient construction and low construction cost, carrys out construction by adopting an integrative construction method of the support table and the bored pile and can efficiently solve the defects of long construction period, large investment, needs of setting up a plurality of construction platforms, large construction difficulty and the like in the successive construction process of the bored pile and the support table in the traditional construction process of the steel sheet pile cofferdam.
Owner:CHINA RAILWAY 20 BUREAU GRP +3

Self-propelled inverted arch template construction method

The invention discloses a self-propelled inverted arch template construction method for a tunnel, which comprises the following construction steps of: setting out a control line for an inverted arch digging section and a longitudinal construction joint according to the design requirement; performing smooth-wall blasting digging on an inverted arch of the tunnel; moving an inverted arch trestle in place; conveying inverted arch stone slag out of the tunnel by using an excavator and a conveying device and abandoning the stone slag in a slag field, and cleaning an inverted arch base; assembling an inverted arch end template; laying steel rails, and moving the inverted arch template to longitudinally move in place per se; starting a hydraulic device to lower the inverted arch template, and supporting the template firmly by using a screw jack; pouring inverted arch concrete; and curing the concrete with equal strength, folding the screw jack, withdrawing a hydraulic cylinder, and releasing a die. The construction method has low cost, is convenient to operate, and improves the construction efficiency; and the longitudinal construction joint is vibrated densely compared with common template construction, and has positive effect of improving the construction quality of tunnel engineering.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +1

Column-through assembled prestressed concrete frame system and construction method thereof

The invention discloses a column-through assembled prestressed concrete frame system and a construction method thereof. The system comprises a foundation, a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, a superimposed floor slab and an external hung prefabricated wallboard, wherein a column prestressed duct is formed in the prefabricated reinforced concrete column; a beam prestressed duct is formed in the prefabricated reinforced concrete beam; post-tensioned unbonded prestressed tendons are penetrated into the beam prestressed duct and the column prestressed duct; energy-dissipation steel bars are anchored between the prefabricated reinforced concrete column and the superimposed floor slab. The structure provided by the invention has a good seismic performance; the lower part of a beam-column joint is subjected to unreinforced connection so that the structure is simple; the post-tensioned unbonded prestressed tendons and a replaceable column base energy dissipater are used so that the structure is less damaged and easy to be repaired in the earthquake; a construction manner of using the prefabricated superimposed floor slab and prestressed assembly makes site construction convenient and rapid and saves a lot of supports compared with a traditional prefabricated assembly structure; the column-through assembled prestressed concrete frame system provided by the invention is used in combination with lateral supports, shear walls and other lateral force resisting members, and is applicable to most high-rise public buildings.
Owner:CHINA STATE CONSTRUCTION ENGINEERING CORPORATION

Formula of solvent-free thermal-spraying environment-friendly heavy anti-corrosion coating and preparation method of coating

The invention relates to the technical field of preparation of functional coating, and provides a formula of solvent-free thermal-spraying environment-friendly heavy anti-corrosion coating which is quick to cure, energy-saving and environment-friendly, tough and wearable, strong in adhesive force, good in shock resistance and excellent in corrosion resistance and a preparation method of the coating. Each composition of primary lacquer comprises liquid epoxy resin, an active diluent, auxiliaries, an anti-rusting pigment, a pigment, a filler and a thixotropic agent; each composition of a curing agent comprises amine resin, an active diluent, an anti-rusting pigment and a filler. The preparation method of the coating comprises the following steps: (1), preparing primary lacquer, wherein the liquid epoxy resin, the active diluent and the auxiliaries are taken and added into a cylinder for stirring while the anti-rusting pigment, the pigment, the filler and the thixotropic agent are added to be uniformly dispersed, and then grinding and filtering; (2), preparing the curing agent, wherein the amine resin, the active diluent, the thixotropic agent and the filler are added into the cylinder in sequence for dispersing at low speed and then dispersing at high speed and filtering; and (3), carrying out mixed construction on the primary lacquer and the curing agent by adopting a double-component airless sprayer to form a coating layer.
Owner:XINHE NEW MATERIALS CO LTD

Vegetation restoration method adopting plant fiber blanket with assist of slurry spraying

The invention belongs to the field of ecological engineering and relates to a construction method of spraying and covering planting in an ecological restoration project, namely, a vegetation restoration method adopting a plant fiber blanket with the assist of slurry spraying. The invention is characterized in that the method comprises the following steps: laying a slope through the plant fiber blanket firstly, spraying and covering the slope through slurry and covering the slope through the plant fiber blanket. In the invention, a three-dimensional net made of geotextile material can be replaced; chemical synthetic materials entering the natural world can be obviously reduced when the effect of improving the overall and local stability of the slope is achieved; moreover, vegetable fiber can also increase organic components of soil, is beneficial for improving the capacities of water retaining and constant-temperature keeping of the soil on the surface layer and is beneficial for the growth of vegetation on the slope; when the construction cost is reduced, the low carbon conversion and utilization of agricultural and forestal residuals are realized, agricultural and forestal chains are extended, and the industrial added value of by-products is improved; and the method has a large application value in the soil and water conservation, sand prevention and control and ecological restoration of the damaged vegetation in a project in China.
Owner:北京林丰源生态科技有限公司

Rapid construction method of high-pressure water-rich fault zone of tunnel

ActiveCN101798930AReduce water pressure in tunnelReduce water and mud inrushUnderground chambersTunnel liningWorld classTunnel construction
The invention relates to the field of tunnel construction, in particular to a rapid construction method of a high-pressure water-rich fault zone of a tunnel, which solves a plurality of problems in the construction method of high-pressure water-rich fault zone tunnels under the guide of the traditional knowledge. A draining branch tunnel is additionally arranged between a main tunnel and a parallel heading, the water flow pressure of the hanging wall of a fault interface is reduced progressively, and a large amount of water is discharged from the main tunnel by adopting a guiding and non-clogging mode; when the water pressure of the main tunnel is reduced to 0.3-0.5MPa, an informationized tracking and accurate grouting method is used for grouting and reinforcing the main tunnel; and rapidly excavating and sealing technology is used for excavating the main tunnel and the parallel heading. The invention adopts the technology combining the water distribution and pressure reduction mode, the informationized tracking and accurate grouting method and the rapidly excavating and sealing technology for high-pressure water-rich shattered fault zones for the first time, breaks through the traditional concept that the water distribution and pressure reduction mode is opposite to the grouting and reinforcing construction method, solves the world-class problem of construction of the high-pressure water-rich fault zone of the tunnel, improves the construction progress and the construction efficiency, and ensures safe and rapid perforation of the tunnel.
Owner:CHINA RAILWAY 12TH BUREAU GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products