373results about How to "Improve construction progress" patented technology

A long-distance pipe-jacking tunnel construction method based on three-dimensional stability analysis comprises the following steps: constructing a three-dimensional numerical model based on geological exploration data; performing high-precision discretization processing to form an infinitesimal triangular mesh; assigning physical and mechanical parameters to the soil body in the model; deducing a pipe-jacking tunnel excavation face supporting force calculation formula by applying a limit analysis upper limit theorem; developing an integrated calculation program, and performing comparative analysis with measured data; the accuracy of a calculation program is verified through actual measurement data, the jacking force is dynamically optimized by integrating construction parameters, and the influence of additional stress of the upper structure on construction stability is evaluated; the three-dimensional stability analysis model is optimized and updated, and accurate control over the construction process is achieved; and according to the optimization model and a data analysis result, a construction scheme is adjusted in real time to adapt to stratum change and construction deviation. Compared with a traditional method, the stability analysis precision of pipe-jacking tunnel construction is improved, the construction scheme is optimized, and the method has remarkable engineering application value and popularization prospects.

The invention discloses a wind power assembly type reinforced concrete tower tube assembly construction method, an assembly type reinforced concrete tower tube comprises a concrete tower splicing ring piece, a concrete tower full-circle ring piece and a steel tower conversion section, and the tower tube comprises the spliced ring piece, the full-circle ring piece and the steel tower conversion section from bottom to top; the construction method comprises the process of assembling the fabricated reinforced concrete tower drum through concrete tower piece splicing construction, concrete tower drum and steel tower conversion section hoisting construction and concrete tower drum prestress construction. According to the construction method, assembly and assembly of the concrete tower drum are completed through crawler crane line production, the fan foundation, the concrete tower drum and the steel conversion section are connected through concrete tower drum outer cable unbonded prestress construction, and the construction period is remarkably shortened. In addition, by optimizing the construction process, rapid installation of the prefabricated shell ring is achieved, the construction progress is accelerated, and meanwhile the construction cost is reduced.

The utility model relates to the field of pile foundations, in particular to an uplift precast pile structure which comprises a precast hollow pile and an anchoring device, the anchoring device is connected with the precast hollow pile, a plurality of unbonded prestressed steel strands are arranged in the precast hollow pile, and the anchoring device comprises a pile bottom anchoring part and a pile top anchoring part. The anti-pulling precast pile solves the problem that an anti-pulling precast pile in the prior art cannot be used as a long pile or an ultra-long pile, improves the anti-pulling bearing capacity of a single pile, improves the stress performance of the anti-pulling pile, and enables the anti-pulling pile to have better integrity and anti-pulling ductility.

The present invention relates to a double-walled steel cofferdam with no bottom and a construction method for deep-water rock capping platform rotary excavation. The BIM three-dimensional simulation technology is used to accurately design the size of the cofferdam module and the position of the preset holes, which greatly improves the accuracy and efficiency of the construction. By solving the problems of module size and layout in the design stage, the installation and commissioning work on site can be significantly reduced, thereby speeding up the construction progress and ensuring the quality of the project. The quick connection method of prestressed tendons and extruded waterproof strips is adopted between the cofferdam modules, which saves a lot of welding work, not only improves the construction efficiency but also reduces the construction difficulty. The guide device used for the lowering of the cofferdam is used for horizontal and vertical displacement and inclination monitoring, which can help the cofferdam lowering process more accurately, and greatly improve the construction efficiency and safety. The comprehensive slotting method of impact drill, rotary drilling drill and grab bucket greatly improves the slotting efficiency and reduces the slotting difficulty.

The invention relates to the field of earth-rock engineering, and discloses an organization design optimization method for improving the work efficiency of earth-rock engineering machinery, and the method comprises the following steps: S1, carrying out the modeling of each process in the earth-rock engineering through a directed acyclic graph; s2, calculating the earliest starting time and the latest starting time of each process by using a critical path method based on the process relation model, identifying a critical path of the project, and determining a critical process which affects the project construction period; s3, on the basis of the identified key process, performing process scheduling optimization by using mixed integer linear programming to ensure that the project period is minimized under resource limitation, and generating an optimized process scheduling scheme; and S4, based on the optimized process scheduling scheme, establishing a multi-stage queuing theory model, and optimizing the scheduling of the mechanical equipment. By optimizing procedure scheduling and mechanical equipment scheduling, the construction efficiency of earth-rock engineering is remarkably improved, the construction period and resource waste are reduced, and it is ensured that a project is efficiently completed on schedule.

The invention belongs to the technical field of aqueduct maintenance, and particularly discloses a high and large aqueduct body concrete spraying and maintaining device which comprises two main beams, a plurality of main beams and a plurality of auxiliary beams. The number of the straining beams is multiple, the multiple straining beams are sequentially distributed in the length direction of the two main beams, and the two ends of each straining beam are fixedly connected with the two main beams correspondingly; the rails are arranged in two rows, the two rows of rails are arranged on the two sides of the top end of the aqueduct body respectively, and the two main beams are perpendicular to the rails and are in sliding fit with the two rows of rails; the water tank is mounted at the top ends of the two main beams; the number of the spraying pipes is two, the two spraying pipes are located on the two sides of the aqueduct body respectively, and gaps are formed between the spraying pipes and the aqueduct body; the upper part of the spraying pipe is connected with the main beam; the water tank is communicated with the spraying pipe through a pipeline, and the pipeline is connected with a booster pump; and a plurality of spray heads are mounted on the spray pipe. Spraying maintenance can be conducted on the aqueduct body on the outer side of the aqueduct body, and the maintenance quality is improved.

The utility model discloses an exterior wall real stone paint construction canopy, including canopy mechanism, and rolling motor and unrolling motor installed outside canopy mechanism, the bottom of canopy mechanism is provided with extension mechanism, and the top one side of extension mechanism is provided with extension motor, canopy mechanism includes first support plate and second support plate, the winding motor is fixedly installed on the outer side of the first supporting plate, the output end of the winding motor is fixedly connected with a winding roller, the outer side of the winding roller is evenly wound with rain shielding cloth, the end of the rain shielding cloth is fixedly connected with a balance weight rod, and the unfolding motor is fixedly installed on the outer side of the second supporting plate. By arranging the canopy mechanism, a winding motor can be used for driving a winding roller to rotate so as to wind the rain shielding cloth, meanwhile, an unfolding motor is used for achieving rotation of an unfolding driven roller so as to unfold the rain shielding cloth conveniently, and the rain shielding cloth can be vertically placed to protect the whole wall surface.

The invention belongs to the technical field of tunnel construction and underground engineering, and particularly relates to a high-ground-stress phyllite and sand slate interaction stratum tunnel water inrush prevention construction method which comprises the following steps that S1, a tunnel face is excavated in an upper step of a tunnel, a drainage hole is drilled, and a drainage steel pipe is buried for pressure relief; s2, a steel pipe is constructed to compact the weak rock mass, and the connecting tension of the net spraying concrete is increased; s3, constructing a self-drilling pipe shed at the arch part, and grouting to form a forepoling system; s4, core soil is reserved for mechanical excavation, and a crushing head is adopted for auxiliary excavation; s5, an upper step temporary inverted arch is constructed in time after excavation, reinforcing locking feet are constructed on arch feet on the two sides and side walls, and grouting is conducted; s6, the left side and the right side of the lower step are staggered and asymmetrically excavated and supported, and the excavation circulation footage is not larger than 2 m; and finally, the inverted arch is formed through one-time excavation, and the excavation circulation footage is not larger than 3 m. The pressure of large rheological deformation formed by water inrush is reduced, large rheological deformation of the soft rock non-uniform interaction stratum is controlled, and the construction efficiency and progress are improved.

The utility model relates to a circulating water pipeline foundation structure for a soft soil foundation large-area soil filling field, which comprises a foundation structure body, and the foundation structure body consists of a plurality of settlement reduction composite sparse piles, a raft foundation, a reinforced concrete wing wall, an artificial soil arc sand foundation, backfill plain soil and a circulating water pipeline, the bottoms of the subsidence reduction composite sparse piles penetrate through the upper soft soil layer and are supported on the hard soil layer, the tops of the subsidence reduction composite sparse piles are embedded into the raft foundation, reinforced concrete wing walls are poured over the raft foundation, the space between the raft foundation and the reinforced concrete wing walls is filled with an artificial soil arc sand foundation, and a circulating water pipeline is placed in the artificial soil arc sand foundation. A gap is reserved between the circulating water pipeline and the raft foundation, and the backfill plain soil is used for filling other remaining excavation areas. The device is simple and reasonable in structure, pipeline sedimentation is reliably and effectively controlled, and powerful support can be provided for soil arc sand foundations on the two sides of the thoracic cavity of the pipeline, so that the operation safety of the circulating water pipeline is ensured.

The overlying oxygen isolation device comprises a storage yard, a plurality of double-flow nitrogen conveying hoses are arranged on the upper surface of the storage yard, the interval between every two adjacent double-flow nitrogen conveying hoses is 0.5-3 m, a plurality of through grooves are formed in the outer surfaces of the double-flow nitrogen conveying hoses, the through grooves are distributed in the axis direction of the double-flow nitrogen conveying hoses, and the through grooves are communicated with the double-flow nitrogen conveying hoses. And a plurality of lifting arc supports are fixedly mounted on the upper surface of the storage yard corresponding to the double-flow nitrogen conveying hose. By arranging a double-flow nitrogen conveying hose, a nitrogen purifying and drying device and a nitrogen detection box, high-concentration nitrogen sequentially passes through a mixed gas buffer box, a first connecting pipe, a gas inlet pipe and a stable ventilation pipe and enters the combustible rock soil through the double-flow nitrogen conveying hose, and meanwhile, the nitrogen purifying and drying device extracts gas in the combustible rock soil; nitrogen rapidly enters the flammable rock-soil, air in the flammable rock-soil is rapidly extruded out through the nitrogen, and therefore the flammable rock-soil and the air are isolated, and spontaneous combustion of the flammable rock-soil is prevented.

The invention discloses an integrated offshore wind power jacket foundation grouting operation platform and a grouting operation method thereof. The operation platform comprises a main body frame with a horizontally arranged platform plate, and a through hole is formed in the center of the platform plate; a grouting raw material storage area, a grouting equipment placement area, a grouting preparation area and a grouting operation area are sequentially arranged at four edge positions in the circumferential direction of the platform plate; two cement-based grouting material storage boxes are fixed in the grouting raw material storage area; a grouting tool container, a generator set container and a diving tool container are fixed in the grouting equipment placement area; two grouting stirring tanks, two fresh water storage tanks and two grouting conveying pumps are fixed in the grouting preparation area, and a crane and a high-pressure flushing machine are arranged in the grouting operation area; according to the operation platform and the grouting operation method thereof, grouting operation can be started after the operation platform is pre-assembled at a wharf and is directly transported and installed at the top of the jacket, the construction difficulty is reduced, the cost is saved, and the construction efficiency and the operation safety are improved.

The invention discloses a fabricated component optimization method and system applied to concrete structure engineering, and is applied to the technical field of fabricated building construction. The method comprises the following steps: acquiring structural data of the fabricated building to establish a component model, and determining the layout of each fabricated component in the fabricated building; optimizing all the assembly type components based on the matching relation of all the assembly type components, and determining information of the optimized assembly type components; determining a production layout scheduling scheme of the fabricated components based on the optimized information of the fabricated components; and the construction procedures of the fabricated building and the construction conditions of all the fabricated components are determined, and fabricated building construction is conducted after production of the fabricated components is completed. By optimizing the matching degree between the prefabricated components and the production process and construction process of the fabricated components, the construction progress of the fabricated building can be accelerated, and meanwhile the construction quality of a project is guaranteed.

The utility model discloses a steel-concrete composite beam cast-in-place bridge deck slab construction supporting system which comprises narrow steel box girders, wood secondary ridges and wood formworks and is characterized by further comprising lug plates welded on the inner sides of the tops of the narrow steel box girders and steel main ridges fixedly connected between the adjacent narrow steel box girders through the lug plates. The cantilever steel pipe, the left inclined supporting rod and the right inclined supporting rod are arranged on the bottom plate cantilever plate on the inner side of the narrow steel box girder; the upper ends of the left inclined supporting rod and the right inclined supporting rod are connected with the midspan position of the steel main ridge, and the lower ends of the left inclined supporting rod and the right inclined supporting rod are connected with the cantilever steel pipes on the adjacent narrow steel box girders respectively. The wood secondary ridges and the wood formworks are sequentially arranged on the steel main ridges from bottom to top. A novel structural design is adopted, stress is reasonable, materials are conventional, installation is convenient, the construction speed is high, the construction cost is low, and compared with a full-space supporting system, the economic performance, the safety, the progress and the quality are greatly improved.

The invention provides a low-cost admixture for shotcrete and a preparation method thereof. The raw materials for preparing the admixture include the following components by weight percentage: 40% to 50% silica fume, 5% to 10% fast-hardening sulphoaluminate cement, 35% to 45% reinforcing agent, 2% to 4% dispersant, 1% to 2% shrinkage reducing agent, and 0.5% to 1% regulator. The raw materials for the shotcrete admixture are widely available, cheap and easy to obtain, can significantly improve the cohesiveness and pumpability of the shotcrete, shorten the setting time of the shotcrete, have high bonding strength with the rock base, reduce the rebound rate of the shotcrete, and greatly save the project construction cost.

The utility model relates to a prefabricated middle partition wall structure of a tunnel ventilation inclined shaft. The prefabricated middle partition wall structure at least comprises a bottom supporting structure, a steel supporting assembly and a prefabricated modular wallboard. A positioning groove is formed in the top face of the bottom supporting structure, and the bottom of the steel supporting assembly is embedded into the positioning groove and fixed. The prefabricated modular wallboard is formed by splicing a plurality of prefabricated slabs, the adjacent prefabricated slabs are connected through tongue-and-groove structures which are matched in a concave-convex mode, and the tongue-and-groove joints are filled with sealing materials. The steel supporting assemblies are longitudinally arranged at intervals, and the tops of the steel supporting assemblies are fixed to a tunnel lining to form a steel-concrete combined structure for supporting the prefabricated modular wallboard. The steel supporting assembly and the prefabricated modular wall plate form a steel-concrete prefabricated structure, and the stability of the whole structure is enhanced. By adopting the autoclaved aerated concrete precast block material and the concave-convex groove embedded modular structure, the problems that the construction quality is difficult to control, the construction period is long, the on-way resistance of air flow is large and the like in the existing reinforced concrete mid-partition wall are solved.

The utility model discloses a laser vertical positioning device for the center of a pipeline. The laser vertical positioning device comprises a shaft rod, a cross-shaped shaft sleeve, a rotating shaft, an inclined strut, a vertical rod, a vertical instrument mounting frame, a vertical instrument, a laser calibrator mounting base, a laser calibrator, a positioning bolt and a sleeve. The device is reasonable in structural design, the workload of secondary holing and casing pipe burying caused by inaccurate casing pipe position burying is greatly reduced, the damage to secondary holing of a floor slab is reduced, the engineering quality is improved, the construction progress is accelerated, and more materials and labor are saved.

The invention relates to the technical field of prefabricated formworks, in particular to an arc-shaped equipment foundation prefabricated formwork equally-divided assembling and reinforcing method which comprises the steps that firstly, lofting is conducted on plywood according to the foundation diameter, a corresponding circular formwork outline is cut out, and a bottom fixing plate and a top end fixing plate are manufactured; finally, the base is divided into an even number of bottom fixing plates and top end fixing plates according to the diameter of the base; equilong battens are cut according to the height of the foundation to form supporting assemblies, and the supporting assemblies are evenly distributed between the bottom fixing plate and the top end fixing plate and fixed through nails, so that a prefabricated circular-arc-shaped equipment foundation framework is formed; the corresponding circular-arc-shaped equipment foundation framework is assembled on the bottom plate, and a complete circular-arc-shaped equipment foundation prefabricated formwork is formed; flattening an iron sheet higher than the top end fixing plate on the fixing cambered surface; and after the internal iron sheet is fixed, a circle is defined on the fastening groove by using a reinforcing steel bar, and the joint is fastened by using an opposite-drawing lead screw and then is welded and reinforced at the joint.

The utility model provides a bridge anti-loosening connecting assembly convenient to install, belongs to the technical field of bridge construction, and aims to solve the problem that in the prior art, a threaded sleeve and a reinforcing steel bar can be connected only after sealant is uniformly smeared by workers, and the operation steps are more. Comprising a connecting sleeve body, a threaded groove, a sealant groove, a gluing limiting piece, a connecting auxiliary mechanism and an anti-loosening gluing mechanism. The two sets of threaded grooves are formed in the left side and the right side of the interior of the connecting sleeve body correspondingly. The sealant grooves are formed in the middle positions in the connecting sleeve main body respectively; the number of the gluing limiting pieces is two, and the two gluing limiting pieces are fixedly connected to the periphery of the connecting sleeve body. The connecting auxiliary mechanism is arranged on the periphery of the connecting sleeve main body; and the anti-loosening gluing mechanism is arranged in the connecting sleeve main body, so that the operation steps of workers are reduced, the connecting efficiency of the bridge reinforcing steel bars is improved, and the construction progress of a bridge is accelerated.

The invention discloses a construction method for a cross partition wall of a tunnel ventilation inclined shaft and a combined type formwork trolley, and belongs to the technical field of tunnel construction methods and devices. The invention aims to provide the construction method of the inclined shaft cross partition wall and the combined formwork trolley which are reasonable in construction sequence, good in pouring quality and high in construction speed. According to the technical scheme, the construction method mainly comprises the steps that a cross partition wall is divided into a lower T-shaped partition wall and an upper T-shaped partition wall, pouring of the lower T-shaped partition wall is conducted firstly, then pouring of the upper T-shaped partition wall is conducted, in this way, longitudinal construction joints between the left transverse partition wall and the right transverse partition wall and the vertical partition wall are eliminated, and the construction quality of the transverse partition walls is guaranteed. The combined type formwork trolley comprises a left side transverse partition wall formwork trolley and a right side transverse partition wall formwork trolley which are used for pouring a lower T-shaped partition wall, and a left side vertical partition wall formwork trolley and a right side vertical partition wall formwork trolley which are used for pouring an upper T-shaped partition wall. The method is used for pouring the cross partition wall of the tunnel ventilation inclined shaft.

The invention provides a water conservancy project slope treatment drainage pipeline integrated energy-saving construction technology, and relates to the field of water conservancy projects. According to the integrated energy-saving construction technology for the water conservancy project slope treatment drainage pipeline, a slope is included, and drainage grooves are formed in the outer surface of the slope. According to the device, through the application of the positioning anchor rod, the fixing mechanism and the supporting mechanism, the drainage pipeline can be rapidly fixed under the cooperative action of the positioning anchor rod and the fixing mechanism, the supporting mechanism can be rapidly fixed through the positioning rod, and secondary fixing can be conducted when the fixing anchor rod is inserted into the side slope; therefore, bidirectional fixation of the fixing mechanism and the supporting mechanism is achieved, the overall stability of the device is improved, the supporting mechanism can distinguish and install the planting grooves, the construction efficiency is improved, the multi-layer protection capacity of the side slope is remarkably enhanced, water and soil loss and collapse are effectively prevented, and the overall safety and stability of the side slope are improved.

The invention relates to the field of hoisting platforms, and discloses a multifunctional hoisting platform for wind power tower foundation installation, the multifunctional hoisting platform comprises a base, a crane assembly is arranged at the top end of the base and is used for bearing, lifting and rotating a lifting hook assembly, and four buckle assemblies are arranged in the lifting hook assembly and are used for fixing and limiting four fixing seats; and a telescopic assembly is arranged in the lifting hook assembly and used for stretching out and drawing back the protection assembly, the lifting hook assembly comprises a mounting base, mounting frames are fixedly connected to the left side and the right side of the bottom end of the mounting base, binding bands are arranged at the bottom ends of the mounting frames, and a fixing frame is fixedly connected to the upper side of the mounting base. The lifting hook assembly can meet the lifting requirements of different parts, and the multifunctional effect is achieved, so that accessories do not need to be frequently replaced, time can be greatly saved for operators, the equipment adjustment and waiting time is shortened, the continuity of the lifting process is ensured, and the construction progress is remarkably accelerated.

The invention discloses a tool for manufacturing a tower stand column, a tower stand column manufacturing method and a tower assembling method. The tool comprises a bottom beam, a bottom plate connected to the bottom beam, a fixed abutting and blocking end and a movable abutting and blocking end which are oppositely placed on the bottom plate, a plurality of arc-shaped supporting plates arranged between the fixed abutting and blocking end and the movable abutting and blocking end, and supporting rods on the two sides of the arc-shaped supporting plates. A sliding block is arranged at the bottom of the movable abutting and blocking end, a sliding rail matched with the sliding block is arranged on the bottom plate, and after the column body is placed into the tool, the movable abutting and blocking end is flexibly adjusted through the sliding rail so that the flange plate and the column body can be accurately positioned and connected. The overall precision of the tower is further improved by designing a manufacturing method of the stand columns and an assembling method of the tower; high-precision production, manufacturing and assembling of the tower are achieved, rod pieces of the same model can be interchanged, the production cost is saved, and the stability and safety of the tower structure are improved.

A railway subgrade contact net foundation construction complete tool is characterized in that the railway subgrade contact net foundation construction complete tool comprises a base, a leveling connecting mechanism, an outer mold and a leveling device, and the base is composed of two long steel channels and two short steel channels; the outer mold is composed of a long mold plate and a short mold plate. The outer mold is connected with the base through a leveling connecting mechanism; and the leveling device is arranged above the long template of the outer mold. Through the leveling connecting mechanism, preliminary leveling and horizontal coordinate adjustment of the outer mold and connection and fixation of the base and the outer mold can be achieved; the leveling device can be used for accurately adjusting the horizontal coordinates of the embedded bolts in the railway roadbed overhead line system foundation and the elevation of the permanent positioning steel plate; powerful guarantee is provided for construction of high-quality engineering of railway roadbed contact net foundation construction; the device is simple in structure, easy to manufacture, convenient and fast to install and capable of being manufactured in batches according to the engineering scale and the work task load, the work efficiency is improved, and the engineering quality can be guaranteed.

The invention discloses a rotatable cantilever crane for erecting bridge sections and a method for erecting a steel box girder. The rotatable cantilever crane for bridge segment erection comprises a main framework, a crane carriage, a rotating mechanism and a lifting appliance, the main framework comprises two longitudinal main beams, a front cross beam and a rear cross beam are connected between the two longitudinal main beams, and a middle stand column and a rear stand column are connected to the lower portions of the middles and the lower portions of the rear ends of the longitudinal main beams correspondingly; the lower end of the middle stand column and the lower end of the rear stand column are both fixedly connected with the bottom frame, the bottom frame is movably matched with the walking track, supporting jacks are arranged on the lower portion of the front end and the lower portion of the rear end of the bottom frame, and a first main inclined supporting rod and a second main inclined supporting rod are detachably connected between the longitudinal main beam and the bottom frame. The hoisting trolley is movably arranged between the two longitudinal main beams, the lifting appliances are connected to the lower portion of a winch pulley block of the hoisting trolley through rotating mechanisms, and leveling jacks are arranged on the lifting appliances.

The invention belongs to the technical field of buildings, and particularly relates to an adjustable aluminum mold transfer opening delayed mold removal supporting system and a construction method thereof. The supporting system comprises a floor formwork system, a rectangular reserved opening is reserved in the middle of the floor formwork system, a sliding formwork is detachably installed in the middle of the reserved opening, and steel supporting formworks are arranged on the two sides of the sliding formwork. According to the device, the construction quality of the material conveying opening can be effectively improved, the problems of opening structure unloading, slurry leakage and poor concrete impression caused by secondary back-jacking process formwork erecting are reduced, secondary grinding and repairing after formwork dismounting are avoided, and the quality problems of cracking, leakage and the like of the material conveying opening can be effectively controlled. And secondary formwork erecting is not needed when the material conveying opening is poured, the construction progress can be accelerated, and the construction cost is reduced. And meanwhile, when the material conveying port outlet structure is constructed, unloaded unloading is carried out on the surrounding structural plates.

The invention discloses a construction site management system based on an intelligent supervision APP, and the system comprises a region division module which is used for calibrating a dangerous operation point on obtained topographic information of a construction region topographic map, and setting a dangerous operation region and a monitoring region in a construction region according to the topographic information, and relates to the technical field of construction management. Whether a person intends to enter a suspicious person in a dangerous operation area or not can be predicted according to the position and the walking dynamic state of the person, the working point position of the suspicious person is obtained for follow-up relevant deployment and control, the problem that unrelated constructors mistakenly enter the dangerous operation area to cause safety accidents is avoided, and the safety prevention and control effect is improved; and normative safety management of a construction site is realized.

The invention discloses an externally-wrapped concrete UHPC-stainless steel combined formwork air shaft structure and a construction method, the externally-wrapped concrete UHPC-stainless steel combined formwork air shaft structure comprises a UHPC-stainless steel combined formwork, staggered hole PBL shear keys, a reinforcement cage and external concrete, the UHPC-stainless steel combined formwork comprises a stainless steel cylinder and prefabricated UHPC, and the staggered hole PBL shear keys are arranged on the outer wall of the stainless steel cylinder. The performance advantages of a combined structure and an assembly type structure are combined, the rigidity and the bearing capacity of the UHPC-stainless steel combined formwork are enhanced, and the problems that a traditional stainless steel sheet is prone to deformation, bulging and protruding in the construction stage are effectively solved. Connection of the prefabricated UHPC, the stainless steel cylinder and external concrete is completed through the staggered hole PBL shear keys, the shear resistance between interfaces is improved, and cooperative work of all parts is guaranteed. The modular assembly type construction technology is adopted, the construction efficiency and the construction progress can be remarkably improved, the well wall thickness and the material consumption are reduced, and the method has remarkable performance advantages and wide application prospects in nuclear engineering structures.

The invention discloses a transmission tower modular foundation with multi-dimensional energy dissipation function and an energy dissipation method thereof, which relates to the technical field of transmission line foundation, including: a base plate, a step module and a column; the step module includes a vibration reduction module, and the vibration reduction module includes an energy dissipation top layer, an energy dissipation middle layer and an energy dissipation lower layer; in the energy dissipation top layer, the vibration of the elastic rope is stimulated by the collision of the ball and the rotation of the turntable, and the reciprocating motion of the elastic rope is driven by the elastic rope retracting device to dissipate energy; in the energy dissipation middle layer, the vibration of the elastic rope drives the annular rack to move linearly, thereby driving the rotation of the blade through the spiral pair and cutting the viscous damping liquid to dissipate energy; in the energy dissipation lower layer, the sliding of the slider drives the movement of the mass block in the shear thickening liquid and drives the vibration of the elastic rope to dissipate energy. While ensuring that the transmission tower foundation is easy to transport and install, the earthquake resistance and wind vibration resistance of the transmission tower foundation are improved, the transmission tower line is assisted to dissipate wind vibration energy, and the damage to the transmission tower caused by vibration is reduced.

The utility model discloses a profile steel force transmission component for pit division construction of a foundation pit, and belongs to the technical field of building construction. The profile steel force transmission component comprises a profile steel body, a force transmission plate and stiffening ribs. The force transmission plates are vertically fixed on the wing plates on the two sides of the profile steel main body, and the stiffening ribs are arranged between the force transmission plates and the wing plates of the profile steel main body; the profile steel body penetrates through a hole formed in a foundation pit dividing wall, and one end of the profile steel body is connected with a basement structural beam / plate on the side where earthwork is excavated firstly. The force transmission plate abuts against the first excavation earthwork side of the foundation pit dividing wall, so that the earthwork pressure is transmitted to the foundation pit dividing wall through the force transmission plate; and the other end of the profile steel main body is connected with a basement structural beam / plate on a post-excavation earthwork side, so that earthwork pressure is transmitted through the profile steel main body. The two ends of the profile steel body in the component are connected with a basement structural beam / plate in an anchoring mode, construction safety can be guaranteed, and the component can still serve as an embedded component to be connected with reinforced concrete structures on the two sides after a pit dividing wall is dismantled.

A panel pouring slip form construction method, comprising the following steps: 1) bottom mold installation; 2) concrete pouring; 3) traction motor traction slip form panel; 4) the first pouring block is vibrated and troweled; 5) traction mold advances, forming a secondary pouring area; 6) repeating steps 2) to 5), completing the secondary pouring operation; 7) repeating steps 2) to 6), completing the slope protection slip form pouring construction. The application adopts the above method, which can solve the problems of poor stability of the slip form, influence of the concrete floating force on the construction and complicated control of the traction mechanism control system in the prior art, and realizes more convenient and stable panel pouring slip form construction.