23results about How to "Guaranteed construction period" patented technology

The invention relates to the technical field of building decoration construction, and discloses a steel structure inclined strut ceiling joist integral lifting installation construction method which comprises the following specific steps: S1, surveying and setting out, compounding existing control point positions, arranging a corner lead net, and establishing a control net for steel structure inclined strut ceiling joist construction; s2, deepening the structure of the steel structure ceiling joist, and applying the BIM technology to cooperate with the design of the steel structure ceiling joist to carry out the deepening work of the structure of the steel structure ceiling joist; s3, designing and manufacturing a hoisting device according to computer theoretical data; s4, the hoisting device is installed; s5, the steel structure ceiling joists are spliced on the ground according to a construction drawing; and S6, the steel structure ceiling joist is integrally lifted through the lifting device. The construction safety and the construction period can be effectively guaranteed, the construction cost is saved, and the construction safety can be effectively guaranteed; the construction design level is high, the scheme is flexible, simple and convenient, the application scene range is wide, and generalizability is high.

The invention relates to the technical field of bridge construction, and provides a linear monitoring method, device, equipment and product for the construction process of a cable-stayed bridge, and the method comprises the steps: obtaining a three-dimensional virtual bridge body model of the cable-stayed bridge, and extracting the three-dimensional features of the cable-stayed bridge of the three-dimensional virtual bridge body model; based on the three-dimensional characteristics of the cable-stayed bridge, virtual constraints are added to the three-dimensional virtual bridge body model; based on the three-dimensional virtual bridge body model added with the virtual constraint, executing a virtual construction strategy, and obtaining a linear prediction sample after the virtual construction strategy is executed; and optimizing the virtual construction strategy according to the linear prediction sample. According to the method, traditional bridge construction is combined with an artificial intelligence algorithm, the scene of the cable-stayed bridge in the construction process is simulated, data collection and analysis are conducted on stress changes of the three-dimensional virtual bridge body model according to the construction steps, whether linear changes of the cable-stayed bridge in actual construction meet construction requirements or not can be predicted, and the construction efficiency is improved. The construction safety and the construction quality are greatly improved, and the construction period is guaranteed.

The utility model discloses a slope photovoltaic belt two-way track sliding type light pile foundation device which comprises a drilling machine unit, a rack unit, a moving unit and a track unit, the drilling machine unit is arranged on the moving unit through the rack unit, and the moving unit is arranged on the track unit in a sliding mode; the drilling machine unit mainly comprises a drilling machine and a drilling rod thereof; the rack unit is mainly composed of a vertical support, a lifting mechanism and a vertical adjusting mechanism. The moving unit is mainly composed of a front moving plate and a rear moving plate. The rail unit is mainly composed of a longitudinal rail and a transverse rail. When the pile foundation device is applied to construction, operation is simple and stable, levelness and perpendicularity of a drilled hole can be guaranteed, and construction errors are reduced. Moreover, the device is convenient to move and small in working surface, does not need road occupation construction, ensures normal passage of a lane, avoids complicated road occupation construction application procedures, ensures the construction period to a certain extent, and provides good conditions for subsequent installation of an upper photovoltaic bracket.

The utility model discloses a pitched roof concrete vibrating and smoothing device, which belongs to the technical field of building construction appliances and comprises a mounting frame, two face smoothing wheels are arranged below the mounting frame and are arranged in parallel front and back, and a vibrating plate is arranged between the two face smoothing wheels. A lifting mechanism used for driving the vibrating plate to work is arranged above the vibrating plate, a driving mechanism used for driving the noodle collecting wheel to rotate and the lifting mechanism to work is further arranged on the mounting frame, a telescopic rod is arranged on the mounting frame through a connecting frame, and an operating handle is arranged at the top end of the telescopic rod. According to the concrete surface finishing machine, the motor is used for driving the two surface finishing wheels to roll on the concrete surface to carry out concrete surface finishing operation; and meanwhile, the vibrating plate is driven to perform surface vibrating operation on the cement surface, so that the concrete surface is vibrated and polished, the construction operation is simple, the progress of vibrating and surface finishing of workers is greatly improved, the construction period is guaranteed, the labor cost is saved, the concrete appearance quality is improved, and very high practicability is achieved.

The present invention discloses a method for constructing the opening of an existing shield tunnel communication channel, which is as follows: first, a segment support reinforcement device is used to complete the support reinforcement of the segment that does not occupy the road in the opening area and the influence range, and after the advance system grouting treatment is applied to achieve the expected effect, a three-guide tunnel three-step construction method is adopted to carry out the segment opening construction: first, a middle guide tunnel is excavated, and the middle guide tunnel interface ring beam and columns and temporary steel support are applied; then, a left guide tunnel is constructed and the left ring beam is closed; finally, a right guide tunnel is constructed and the right ring beam is closed, and the full-closed construction of the ring beam in the opening area is completed at this time; after the ring beam is closed and reaches the design strength, the temporary support is removed. The method of the present invention can safely and quickly complete the construction and processing of the evacuation channel and the entrance and exit segment opening of the existing shield tunnel, with fast construction progress, small structural deformation, guaranteed safety and quality, and effectively shortened the processing period, ensuring the smooth realization of the established goals of the construction unit, and significant social and economic benefits.

The utility model discloses an auxiliary block installation structure which comprises a frame assembly, a supporting assembly and a gradienter assembly. The frame assembly is a rectangular frame and is formed by combining transverse plates and longitudinal plates. The supporting assemblies are arranged at the corners of the frame assembly, and the gradienter assembly is detachably connected to the side of the frame assembly and located on the top of the frame assembly. The transverse plates and the longitudinal plates can form a spacing frame, and the size of the spacing frame is matched with the size of a block to be laid. The height of the supporting assembly is larger than or equal to 100 mm, so that the frame assembly is far away from the ground to be constructed. The block auxiliary installation structure is reasonable in structure and convenient to operate, the spacing frames formed by the frame assemblies can limit the blocks, the thickness of the transverse plates and the longitudinal plates is equal to the gap between the adjacent blocks, and therefore the construction period is guaranteed under the condition that the laying quality of the blocks is guaranteed.

The utility model discloses a hoop type truss base riding frame hanging basket suspension device, which relates to the technical field of building construction, and adopts the technical scheme that the hoop type truss base riding frame hanging basket suspension device comprises a truss base, the truss base comprises two groups of supports which are arranged in parallel, the two groups of supports are fixedly connected through a plurality of connecting rods, each group of supports comprises two support legs which are vertically arranged, the lower ends of the two supporting legs are fixedly connected through a horizontal base, and the base is fixed to an upper-layer flower stand beam through a U-shaped hoop. Guide sleeves are inserted into the upper ends of the two supporting legs and comprise horizontally-arranged guide rods, a main cross beam is inserted into the guide rods, an auxiliary cross beam is inserted into one end of the main cross beam and extends to the inner side of a building, and the end, away from the guide sleeves, of the main cross beam is connected with a hanging basket through a pull rope. The fixing device has the advantages of being safe in structure, firm in fixing, convenient to operate, small in damage to the non-transformation part of an original project, capable of reducing project cost and capable of guaranteeing the construction period.

The invention discloses a long-term sealing pipeline stress reduction device and a safety performance detection system, and relates to the technical field of pipeline stress reduction. The telescopic structure of the pipeline stress reducing device comprises a short pipe, a sealing sleeve assembly welded with the short pipe into a whole and a telescopic pipe arranged in the short pipe and the sealing sleeve assembly in a penetrating mode, the two ends of the short pipe and the two ends of the telescopic pipe are welded to the pipeline, and the telescopic pipe stretches out and draws back along with thermal expansion and cold contraction of the pipeline so as to reduce the thermal stress of the pipeline and ensure safe operation of the pipeline. The anti-falling clamping ring is welded to the inner end of the telescopic pipe, leakage accidents caused by pipeline separation due to excessive extension of the telescopic pipe are avoided, long-term sealing can be achieved after one-time installation, and maintenance is not needed.

The utility model relates to energy -conserving window technical field, concretely relates to a kind of comprehensive energy -conserving safety window. Including window frame and solar water heater, window frame is provided with horizontal beam in, horizontal beam divides window frame into upper frame body and lower frame body, lower frame body is provided with the protective fence extending along horizontal direction in, solar water heater includes water storage device and collector, collector includes heat collecting pipe and first water pipe, heat collecting pipe is arranged multiple in lower frame body along horizontal direction interval, and heat collecting pipe is set in protective fence one side facing away from indoor, horizontal beam is provided with the mounting cavity extending along horizontal direction in, first water pipe is worn in mounting cavity, mounting cavity is filled with heat preservation layer between first water pipe, the upper end of heat collecting pipe extends to mounting cavity and is communicated with first water pipe upwards, the lower end of heat collecting pipe is located on lower frame body. Window frame, protective fence and solar water heater are combined into one, without being reserved installation and maintenance space for each single, effectively increase the use space of balcony, improve construction efficiency.

The invention discloses an oversized longitudinal slope comprehensive pipe gallery underneath passing oil pipeline interchange type construction method, and belongs to the technical field of open cut tunnel construction. According to the method, an oil pipeline is suspended through concrete buttresses, bailey beams, suspenders and I-shaped steel, on the premise that normal operation of the oil pipeline is guaranteed, a longitudinal slope pipe gallery below is excavated, and the oil pipeline is constructed; during excavation, the form of a base plate of the ultra-large longitudinal slope pipe gallery structure is adjusted, a straight slope base plate is adjusted to be a step type slope, an anti-sliding key groove is additionally formed in the lower portion of the base plate, an open excavation method is adopted for constructing the pipe gallery structure below an oil conveying pipeline level crossing, the base plate of the pipe gallery structure is poured in a segmented mode, and in the time period of oil conveying pipeline suspension measure and backfill conversion, the anti-sliding key groove is formed. The brick foundation is additionally arranged at the bottom of the oil pipeline, it is guaranteed that the oil pipeline can be continuously kept stable after suspension measures are removed, the situation that due to the fact that backfill does not effectively support the oil pipeline, deflection of the oil pipeline is too large is avoided, the construction cost is saved, the construction period is shortened, and meanwhile normal operation of the oil pipeline is guaranteed.

A mid-partition lining trolley for a multi-arch tunnel comprises trolley supports which are arranged left and right, and one ends of the trolley supports are connected into a whole through a connecting beam. The lower end of each trolley support is assembled with a walking wheel through a lifting hydraulic cylinder, and the walking wheels are located on a track. Templates are arranged on the left side and the right side of the inner side of the two trolley supports, the left template and the right template are correspondingly matched with the side wall of the mid-partition wall, each of the left template and the right template comprises an upper template, a middle template and a lower template which are sequentially hinged, and demolding hydraulic cylinders are correspondingly installed on the back faces of the upper template, the middle template and the lower template; and template traction mechanisms are mounted on the left trolley bracket and the right trolley bracket and are used for pulling the middle template and the lower template. According to the mid-partition lining trolley for the multi-arch tunnel, obstacles formed by an initial supporting face can be reduced, and normal passing of the lining trolley is guaranteed.

The application discloses a kind of blast furnace tuyere flange welding crack defect argon arc welding repair welding methods, comprising: step S1, by observing flange crack, determine the initial crack situation of tuyere flange, first crack stop hole is processed at both ends of initial crack;Step S2, the periphery of tuyere flange crack is ultrasonic flaw detection, the depth and distribution of tuyere flange crack are detected, according to the ultrasonic flaw detection result, draw flaw detection crack distribution diagram, second crack stop hole is processed at both ends of flaw detection crack;Step S3, flaw detection crack is excavated and polished, until flaw detection crack is all excavated;Step S4, argon arc welding is used to weld crack stop hole and excavated area.The welding crack repair method used in the application, welding equipment is simple, low in cost, and the tuyere flange repair welding has high performance.

The invention relates to a karst geology steel sheet pile cofferdam grouting impact hole forming pile foundation and a construction method, a steel sheet pile cofferdam-high-pressure jet grouting-permanent steel casing combined treatment technology is adopted, a plurality of high-pressure jet grouting piles are annularly arranged on the outer side of a double-layer steel casing, and the construction safety of the pile foundation under karst geology is improved; by the adoption of the efficient backfilling device for backfilling soil in the pile casing, the construction efficiency of installation of the double-layer steel pile casing is improved, and the construction period is further guaranteed; the construction platforms are arranged at the corners of the steel cofferdam, and then the steel pipe piles are constructed and reinforced, so that the construction efficiency of local steel pipe pile reinforcement treatment is improved, and the construction quality of steel pipe pile driving is improved; according to the double-layer steel casing inner support positioning device, the double-layer steel casing inner support positioning device is adopted, the wedge-shaped block is arranged on the outer casing placing plate and used for adjusting the perpendicularity of the inner casing, the in-place accuracy of the double-layer steel casing is improved, the integrity of the double-layer steel casing is improved, and then the construction quality is improved.

The present application belongs to the field of bridge crane replacement, and mainly relates to a large-scale bridge crane quick replacement method under restricted space conditions, comprising the following steps: installing a support beam below the crane, installing a lifting beam at a certain height above the crane, installing multiple towers on different module vehicles, moving the module vehicles to the two sides of the old crane, and supporting under the lifting beam; placing a lifting device above the lifting beam and connecting with the bottom support beam, lifting the support beam and the old crane to a certain height; after rotating the old crane by a certain angle in place by the module vehicle, the lifting device lowers the old crane, and the disassembly is completed; repeating the above steps to install a new crane. In the restricted working space, the module vehicle and the tower combination are used to replace the bridge crane through the in-place rotation mode, the occupied space is small, the modular disassembly is used, the construction time is effectively shortened, the efficiency is improved, and the method is suitable for construction of various sizes and scenes.

The application discloses a construction method of a fishway with a vertical joint type of a multi-layer plate folding partition, and comprises frame construction and fishway construction, S10, first layer column steel bar installation and first layer column formwork installation are carried out; S20, first layer frame beam support frame erection is carried out, and first layer frame beam bottom formwork installation is carried out, then first layer frame beam steel bar installation and first layer frame beam side formwork installation are carried out; S30, first layer frame cross beam embedded part installation is carried out, and first layer column and beam concrete pouring is carried out; S40, S10-S30 are repeated until frame construction is completed; the fishway construction comprises the following steps, S50, first layer fishway groove bearing support erection is carried out; S60, first layer fishway groove bottom formwork installation, first layer fishway groove steel bar installation and first layer fishway groove side formwork installation are carried out; S70, first layer fishway groove concrete pouring is carried out; S80, S50-S70 are repeated until fishway groove construction is completed; S90, prefabricated partition plates are made and installed. The application effectively solves the problems of complex structure and great construction difficulty, and ensures the construction period.

The invention discloses a blast-furnace tuyere flange welding crack defect argon arc welding repair welding method which comprises the following steps: S1, determining the initial crack condition of a tuyere flange by observing a flange crack, and machining first crack arrest holes in two ends of the initial crack; s2, ultrasonic flaw detection is conducted on the periphery of the tuyere flange crack, the depth and distribution condition of the tuyere flange crack are detected, a flaw detection crack distribution diagram is drawn according to an ultrasonic flaw detection result, and second crack arrest holes are machined in the two ends of the flaw detection crack; s3, the flaw detection cracks are excavated and polished until all the flaw detection cracks are excavated; and S4, the crack arrest hole and the excavated area are welded through argon arc welding. According to the welding seam crack repairing method, welding equipment is simple, cost is low, and the tuyere flange repairing welding performance is high.

According to the pier-beam reverse construction method for the side pier cast-in-place beam of the cable-stayed swivel bridge, a pier column jointly supported by a main bridge cast-in-place beam and an approach bridge cast-in-place beam is constructed in two times, the first time of construction is conducted to the elevation position of the padstone bottom of the main bridge cast-in-place beam, and steel bars needed by the second time of construction of the approach bridge side pier column are reserved during the first time of construction of the pier column. When the first-time concrete strength meets 85% of the design strength, a support of the approach bridge cast-in-place beam is constructed, meanwhile, the position of a tensioning notch of main beam closure prestress is reserved, and meanwhile, it is avoided that a temporary support intrudes into the position of an originally-designed support. A support is erected on a main bridge cast-in-place beam according to design requirements to complete cast-in-place section construction at the position of a side pier and closure block construction after rotation, tensioning grouting and anchor sealing of closure prestressed steel beams are completed after closure block concrete strength meets requirements, and then approach bridge side pier lifting and padstone and support pre-burying construction is completed according to pier column construction requirements. And after the concrete strength of the approach bridge side abutments, the supports and the like reaches the standard, permanent supports are installed, the approach bridge temporary supporting columns are dismantled, the approach bridge cast-in-place beams completely fall on the permanent supports, and system conversion of the approach bridge cast-in-place beams is completed.

This invention discloses an enhanced connection device and method for achieving long-term sealing of sonic logging pipe joints, comprising: a sonic logging pipe and a sonic logging pipe joint; adjacent sonic logging pipes are connected by the sonic logging pipe joint; a sealing tape is wrapped around the outer surface of the sonic logging pipe joint; the two ends of the sealing tape extend to the outer surfaces of the two sonic logging pipes at both ends of the sonic logging pipe joint, respectively, for sealing the connection between the sonic logging pipe and the sonic logging pipe joint. This invention is applicable to sonic logging pipes of all joint types, has low cost, is convenient to construct, effectively prevents mud and cement slurry in the trench from seeping into the sonic logging pipe, improves the survival rate of the sonic logging pipe, reduces the burial rate, and lowers construction costs.

The invention discloses a dewatering well spiral drilling machine coping with soil layer permeability coefficient anisotropy and a construction method, and belongs to the technical field of dewatering wells. A dewatering well spiral drilling machine coping with soil layer permeability coefficient anisotropy comprises a drill rod and a drill bit rod coaxially connected to the lower end of the drill rod, spiral blades are arranged on the drill bit rod, and the dewatering well spiral drilling machine is characterized in that the drill rod is of a hollow structure, and a mud suction hole and a sand blasting hole are formed in the side face of the lower portion of the drill rod; the mud suction hole is connected with the end, extending into the drill rod, of a mud suction pipe of the slurry discharging unit, the other end of the mud suction pipe penetrates out of the drill rod to be communicated with water pumping equipment and a slag discharging pool, the sand blasting hole is connected with the end, extending into the drill rod, of a sand blasting pipe of the grouting unit, and the other end of the sand blasting pipe penetrates out of the drill rod to be connected with a high-pressure pump. A mesh is arranged at the mud suction hole, and the aperture of the mesh is smaller than the particle size of coarse sand sprayed by the sand blasting pipe. The method can effectively cope with construction of the descending water well under the soil layer condition with anisotropic permeability coefficients.

This invention relates to the technical field of tunnel construction methods, and in particular to a method for anchoring and pulling out anchors in the excavation section of a hard rock tunnel. The method includes the following steps: S1, setting the outline of the excavated rock mass and creating a weakened structural surface along the outline; S2, driving several anchor rods into the excavated rock mass and creating a rock mass structural surface with several anchor rod ends; S3, using construction machinery to pull out the anchor rods; S4, removing slag; S5, subsequent rock mass support. This invention features simple process steps, a reasonable design, convenient construction, and good performance. It can easily complete the excavation and construction process of hard rock tunnels, ensuring safety and guaranteeing the construction period.

The invention discloses a super-high-altitude cantilever hanging basket structure and a construction method, relates to the technical field of decoration hanging baskets, and solves the existing technical problems. Comprising a supporting disc buckle frame erected on a roof cantilever beam, two upper support assemblies arranged on the top of the supporting disc buckle frame side by side, and a cantilever platform connected to the two upper support assemblies through pull ropes. Each upper bracket assembly comprises an upper bracket, a suspension steel wire rope, a wood cushion block, a fixed steel wire rope and an anti-inclination steel wire rope; the wood cushion block is positioned on a supporting disc buckling frame at the bottom of the upper bracket; the front end and the rear end of the upper support are connected to a roof cantilever beam through a fixing steel wire rope and an anti-inclination steel wire rope. And the overhanging platform is fixed on the upper bracket through a hanging steel wire rope. The construction technical problem of the super-high-altitude cantilever hanging basket is solved, and the hanging basket has the advantages of being convenient to assemble and disassemble, safe, reliable and convenient and fast to construct.

The utility model discloses a rainproof glass shutter convenient to assemble, which comprises a main body assembly comprising a glass shutter blade and an aluminum alloy shutter blade arranged on one side of the glass shutter blade, and a mounting assembly arranged on the glass shutter blade and comprising a first mounting piece and a second mounting piece, the first installation part is arranged on the glass louver blade, and the second installation part is located on the aluminum alloy louver blade. Compared with the prior art, the high-quality combined rain-proof louver has the advantages that on the premise that the facade effect of the outer glass louver and the inner aluminum alloy louver is achieved, the factory production degree is increased, the machining quality is better guaranteed, the anti-seepage capacity of the double-channel rain-proof ventilation louver is improved, the performance is more excellent, and the service life of the double-channel rain-proof ventilation louver is prolonged. The installation steps of a construction site are simplified, the construction period is better guaranteed, and the manufacturing cost is more economical.

The application provides a large-diameter steel pipe column top-down method verticality control device and a use method. The device comprises a connecting ring seat arranged on the ground and located outside the pile hole, and an operation seat arranged on the connecting ring seat and used for connecting with the upper end of the steel pipe column and leveling the upper end of the steel pipe column. The verticality of the lower end of the steel pipe column does not need to be adjusted manually, the construction efficiency is greatly improved, the construction intensity of the construction personnel is greatly reduced, the economy is improved, the construction period can be ensured, the safety hidden danger is reduced, the stability is improved, the verticality of the steel pipe column is not easily interfered with when the device is recovered after the verticality of the steel pipe column is adjusted, the verticality of the steel pipe column is not easily reduced, the device is not easily caused to fall, the verticality of the steel pipe column can be quickly adjusted, and the verticality precision is improved.