32results about How to "Fast construction operation" patented technology

The invention relates to a nuclear island negative excavation circle corridor pre-split blasting method, belonging to the technical field of earthwork construction methods. The method has the following steps: excavating downward at the elevation at the heart of the nuclear island, and reserving a retaining layer; drilling holes along the inner and outer circumferences of the circle corridor at equal space interval respectively; filling flexible material into the bottom of the holes to serve as cushion layers; filling the explosive into the holes which are provided with the cushion layers and the loading depth at the orifices in three sections, wherein, the bottom part is a strengthening explosive filling section, the top part is a weakening explosive filling section, and the middle part is a normal explosive filling section; after the explosives are loaded into the holes, filling the loading depth at the orifices with conventional materials; and detonating the explosives to form cracks along the inner and outer circumferences of the circle corridor. The invention can form desired cracks along the inner and outer circumferences of the circle corridor at the predetermined location of the rock foundation so as to carry out the main bursting aiming to remove the rocks in the circle corridor; at the same time, taking into account the vibration, tolerance and other technical requirements, the invention takes corresponding reasonable measures so as to rapidly complete the construction work of the nuclear island negative excavation circle corridor with high quality.

The invention discloses a modern arch type bamboo bridge. The modern arch type bamboo bridge is characterized by comprising bamboo arch ribs, bamboo beams, diagonal bracings, bamboo panels and steel shoes, wherein the bamboo arch ribs, the bamboo beams, the diagonal bracings and the bamboo panels are made of reconsolidated bamboo materials; the steel shoes are made of steel materials. The invention further discloses a construction method of the modern arch type bamboo bridge. The construction method of the modern arch type bamboo bridge is characterized in that the bamboo arch ribs, the bamboo beams, the diagonal bracings, the bamboo panels and the steel shoes are prefabricated, installation of the steel shoes and a bridge abutment skewback is finished, then installation of the bamboo arch ribs and the steel shoes is finished, the bridge abutment skewback is poured, and finally the bamboo beams, the diagonal bracings and the bamboo panels are installed. The construction method of the modern arch type bamboo bridge has the advantages that the manufacturing process is simple, the cost is low, factorization and standardization of structural components are good, the assembly degree is high, the building time is short, the structural intensity is high, rigidity is large, ductility is good, and the seismic performance is good, and the obtained arch type bamboo bridge has the effects of being environmentally friendly and low in carbon.

The invention discloses a multifunctional furring brick which consists of a finishing coat, a multifunctional layer, and a bonding layer. The multifunctional layer is manufactured and molded at a time with multifunctional liquid and foaming equipment. The finishing coat and the bonding layer are manufactured on the upper face and the lower face of the multifunctional layer respectively. The multifunctional liquid adopts polyfunctionality polyether glycol, polyester polyol prepolymer, vegetable oil polyhydric alcohol and hydramine as initiators, and polyether glycol, a fire retardant, a foam uniformizing agent, a foaming agent, postassium acetate, triethylenediamine, acetal mixture, a delaying catalyst, an ultraviolet absorbent and isocyanate as raw materials. The finishing coat can be an ordinary finishing coat, a fashionable finishing coat, a luxurious finishing coat or a fireproof finishing coat as required. The multifunctional furring brick has the characteristics of energy conservation, water resistance, decoration and portability. Wet land construction with the multifunctional furring brick can be carried out as the construction with ceramic mosaic and porcelain facing bricks, and the multifunctional furring brick can also be cast with concrete in a molding board. In addition, the multifunctional furring brick can also be bonded with an adhesive. The process is simple and operation is quick. The multifunctional furring brick integrates a plurality of functions, such as decoration, thermal insulation, water resistance and imperviousness, antisepsis, sound insulation, light weight, hardness and so on.

The invention discloses a large-altitude-difference variable-section concrete structure construction joint and a construction method thereof. The construction joint is used for construction of a large-altitude-difference variable-section concrete structure, and comprises an upper layer structure and a lower layer structure. The upper layer structure and the lower layer structure are respectively provided with staggered edges, and vertical inserting ribs are arranged between the staggered edges of the upper layer structure and the staggered edges of the lower layer structure. The construction method comprises the steps that concrete is poured to the lower layer structure and poured to the bottoms of the openings of the staggered edges, the vertical inserting ribs are horizontally and evenly embedded in the lower layer structure, staggered edge opening hanging formworks are arranged on the lower layer structure, concrete is poured to staggered edge openings, and construction of the large-altitude-difference variable-section concrete structure construction joint is completed. The relative sliding problem of structures at the large-altitude-difference variable-section concrete structure construction joint can be solved, the construction joint arranging method is simple, and construction operation is convenient and quick; concrete is poured twice, the upper layer structure and the lower layer structure can be constructed in a flow construction mode, and cracks due to the fact that the thickness of concrete poured one time is too large are effectively avoided.

The invention discloses a composite aluminium alloy guard rail. The guard rail includes a composite base the inner layer iron core of which is completely wrapped by an aluminium alloy shell on the surface layer, aluminium alloy grid sheets and aluminium alloy columns are all provided with hollow channels communicated with one another, the hollow channel of each aluminium alloy grid sheet is internally provided with a steel reinforced rope, the hollow channel of each aluminium alloy column is internally provided with a steel self-locking clamping base, the clamping heads of the two steel reinforced ropes adjacent to each aluminium alloy column are placed in the inner cavity of the corresponding steel self-locking clamping base and fixedly locked, and the aluminium alloy columns are internally and fixedly provided with reinforced steel core rods in a lengthwise direction. Since the combined aluminium alloy guard rail is internally provided with a high-strength core framework net which is interlaced in the horizontal and vertical directions, only aluminium alloy profiles can be adopted on all the external portion and non-important portions of the combined aluminium alloy guard rail, and therefore not only can costs be greatly saved, but the guard rail is elegant in appearance and not likely to rust, and meanwhile, the stability and anti-shock resistance of the combined aluminium alloy guard rail are ensured.

The invention provides a pipeline repair method and a repaired pipeline. The pipeline repair method comprises the steps that firstly, an annular seal part is put in a reserve area of the pipeline, then a rigid annular adjusting unit is installed on the inner surface of the annular seal part and is adjusted, the outer contour of the rigid annular adjusting unit is expanded, thus the rigid annular adjusting unit tightly presses the annular seal part, and the annular seal part is tightly attached to the pipeline face of the reserve area. The pipeline repaired with the pipeline repair method comprises a pipeline body, a rigid annular adjusting assembly and a rubber seal layer arranged between the pipeline body and the rigid annular adjusting assembly. The pipeline repair method provided by theinvention is simple to operate, structure damage of the pipeline is avoided, and the pipeline repaired with the pipeline repair method can achieve a better leakproof effect.

The invention discloses an L-shaped supporting frame for mounting a bridge anticollision guardrail formwork. The L-shaped supporting frame comprises two T beam flange plates which are perpendicular to each other, one of the T beam flange plates is placed horizontally while the other one is placed vertically, 10# equilateral angle steel is arranged at the top of the T beam flange plate which is placed vertically, one end of the 10# equilateral angle steel is welded on one side of the T beam flange plate which is placed vertically while the other end of the same is fixed at the top of the T beam flange plate which is placed vertically through an upper-portion screw, and the upper screw can be adjusted up and down, an angle steel welding leveling device is arranged between the upper screw and the 10# equilateral angle steel, and a lower screw is penetratingly inserted into the bottom of the left side of the T beam flange plate which is placed vertically from left to bottom. The L-shaped supporting frame is welded on the upper portion of the formwork inside an anticollision guardrail to achieve the objective of quickly fixing an outside formwork, and construction operation is quicker.

The invention discloses a method for mineralizing and reinforcing a clay roadbed by using carbon fixation bacteria. The method comprises the following steps that A, streptomyces microflavus is cultured, and a bacteria solution is obtained; B, quartz sand is poured into clay for forming a roadbed, stirring for mixing is conducted, and then a mixture of the streptomyces microflavus bacteria solution, slaked lime and foam carbon dioxide is poured into the mixture of the clay and the quartz sand for sufficient stirring; C, standing is conducted to form a carbonized coagulum. The method for reinforcing the clay roadbed is more environmentally friendly, the operation is more convenient and faster, and the reinforcing effect is better.

The invention discloses a pile foundation static loading test device. The device is characterized in that an ejector rod is composed of a base section ejector rod and linkage section ejector rods, the base section ejector rod is a cylinder with a base section head cover, and the lower part of the base section ejector rod is provided with a base section flange plate; the linkage section ejector rods are hollow cylinders and the two ends of the linkage section ejector rod are provided with linkage section flange plates, and the base section flange plate and the linkage section flange plates are fixed together through a bolt; the linkage section flange plates of two linkage section ejector rods are fixed together through the bolt, and the base section ejector rod and linkage section ejector rods are sleeved on a pile to be tested; a connecting rod is composed of an outer ring connecting rod and an inner ring connecting rod, one end of the outer ring connecting rod is articulated on the base section ejector rod, and the other end of the outer ring connecting rod is articulated on a soil-bearing base; and one end of the inner ring connecting rod is articulated on the linkage section ejector rods, and the other end of the inner ring connecting rod is articulated on the soil-bearing base. The test device provided by the invention has the advantages that steel beam size of a counterforce device is decreased, the assembling is convenient and rapid, the applicability is larger, the construction operation is more rapid, the waste is not generated in a testing process, thus the device is energy-saving, is environmentally-friendly, and the experimental cost is low.

The invention discloses a wall installing method for a blast furnace casting house plant, a wall system can be integrally installed, aloft work is reduced, and installing efficiency is improved. The installing method comprises the steps that (1) an assembling site is determined according to the installing design size of a wall; (2) wall columns are placed in the assembling site, and it is ensured that the wall columns are on the same horizontal plane; (3) wall purlines, wall tension bars and a purline angle brace structure are installed sequentially; (4) after the wall system is installed, wall levelness and the straightness of the wall purlines are uniformly adjusted to ensure that requirements of a drawing and standards are met; (5) after assembly is completed, welding, accepting and supplementary brushing of an erosion resistant coating on welded portions are conducted sequentially; and (6) the assembled wall is hoisted and installed through a hoisting device. The wall installing method for the blast furnace casting house plant is few in aloft work procedure, safe, reliable, high in installing precision, good in welding quality, short in overall installing time, short in project schedule and low in cost.

A novel offshore pile anti-stormy-wave device comprises a rubber plate body, a plate body internal inflation matched device, a circular thin-walled steel sleeve and a screw. The rubber plate body comprises a rubber upper plate and a rubber lower plate. The lower surface of the circular edge of the rubber upper plate and the upper surface of the circular edge of the rubber lower plate are connectedinto a whole. The rubber plate body air cavity inflation matched device comprises an inflation nozzle, an eight-square screw nut, an air guide pipe, an air valve switch, an air pressure gauge and aninflation air pump. The novel offshore pile anti-stormy-wave device has the advantages that when a pile body generates great displacement and deformation under the action of horizontal loads, the lower surface of the plate body makes contact with silt and a vacuum negative pressure effect is generated, the anti-stormy-wave device has a stabilizing effect for allowing a high-pile marine building toresist horizontal loads, horizontal displacement is reduced, and compared with other methods, construction operation is rapid and construction cost is low.

The invention relates to a novel framework connecting piece. The novel framework connecting piece structurally comprises a node connecting piece and connectors used in cooperation with the node connecting piece. One end of a connector is provided with a spherical end part, and the other end of the connector is provided with a connecting part for connecting beams and columns; and the node connecting piece comprises a main body and connector inserting grooves formed in the bottom and the side face of the main body, the spherical ends of the connectors are inserted into the connector inserting grooves in a matched mode, and clamping heads used for clamping the connectors are arranged in the connector inserting grooves. According to the framework connecting piece, on-site construction operation of a framework is faster, operation is easy and convenient, the assembling efficiency of the framework is improved, the framework connecting piece can be suitable for framework structure materials such as steel and wood, and the connecting piece can transmit axial force, shearing force and bending moment at the same time; and the node connecting piece can be designed into a corresponding polygon according to different numbers of framework beams connected with the node connecting piece, and can also be designed into connecting surfaces in different shapes according to different shapes of framework beams and columns connected with the node connecting piece, so that the connecting nodes of the framework are more fit.

The invention discloses a foundation ring and a processing and construction method thereof. The foundation ring is used for connecting a tower tube with a foundation and comprises a ring body, a top flange, a bottom flange and a plurality of steel bar connectors. The upper end of the ring body is fixedly connected with the top flange. The tower tube is fixedly mounted through the top flange. The lower end of the ring body is fixedly connected with the bottom flange. The plurality of steel bar connectors. Are fixed to the wall of the ring body and used for being in screwed connection with and being fixed to steel bars. During foundation pouring, the bottom flange, the ring body connected with the bottom flange, the steel bar connectors on the ring body and the steel bars connected with thesteel bar connectors are buried in concrete and finally integrated with a foundation, connection of the foundation ring and the foundation is realized, and the foundation ring is anchored. Through thefoundation ring provided by the invention, there is no need to form holes in the ring body, so that connection operation between the ring body and the steel bars is easy and efficient, and the foundation ring and the foundation are convenient to repair and maintain.

The invention discloses a high-content fly ash-based secant pile building method for a water blocking curtain. Secant pile construction is performed by the aid of a rotary drilling rig, secant piles are held by each other and enter a waterproof clay layer or a mudstone layer, high-content fly ash-based grouting materials are poured into the secant piles, I-beams are inserted intermittently, and acontinuous secant pile wall used as the anti-seepage water blocking curtain is formed. According to the method, the problems of low secant pile hole forming speed, tedious and complex pouring procedures, slurry sedimentation, high concrete pouring cost and high construction site requirements can be solved effectively, and the continuity and the anti-seepage performance of the water blocking curtain can be improved while the problems of low construction efficiency, high cost, large construction site and the like can be solved.