40results about How to "Improve project quality" patented technology

The invention relates to a roof waterproof system based on ultra-high-performance concrete waterproof layers, which is characterized in that at least one ultra-high-performance concrete waterproof layer is arranged on a roof, and the ultra-high-performance concrete waterproof layer is not provided with a dividing joint; the ultra-high performance concrete waterproof layer serves as a part of the structural layer and forms a composite waterproof layer with the common reinforced concrete layer of the structural layer. Or the ultra-high-performance concrete waterproof layer is laid on the structural layer, the slope making layer or the heat preservation layer to form an ultra-high-performance concrete independent waterproof layer; when the ultra-high performance concrete independent waterproof layer is arranged on the structural layer or the slope making layer, the leveling layer can be canceled; when the ultra-high-performance concrete independent waterproof layer is arranged on the heat preservation layer, the isolation layer is arranged between the ultra-high-performance concrete independent waterproof layer and the heat preservation layer, the ultra-high-performance concrete independent waterproof layer has waterproof and protection functions, and a protection layer can be omitted. The long-acting waterproof goal that the roof is waterproof and the building structure has the same service life is achieved, the roof structure level is simplified, the construction efficiency and the engineering quality are improved, and the construction cost is reduced.

This utility model relates to the field of building engineering technology and discloses a rapid assembly guide device for prefabricated components. It includes a connecting plate, to which multiple telescopic rods are fixedly connected. A connecting plate is fixedly connected to the outside of each telescopic rod, and a support plate is fixedly connected to the outside of each connecting plate. A driving mechanism is fixedly connected to the outside of the support plate. A guide post is fixedly connected to the bottom of the connecting plate, and a positioning mechanism is fixedly connected to the outside of each guide post. The driving mechanism includes a cylinder, to which a connecting block is fixedly connected. Multiple follower plates are fixedly connected to the outside of the connecting block. In this utility model, the cylinder drives the connecting block, causing the follower plates to move an L-shaped plate, which in turn causes the connecting plate to move a drive plate, which in turn causes the connecting rods to move a fixed plate. This allows the device to adapt to the assembly of different sized panels, improving its versatility.

This utility model provides a sealing device for a dewatering well in a structural base plate, comprising a pre-embedded sleeve, a sealing plate, a first water-stop ring, and an operating rod. A pre-drilled hole is provided on the inner bottom plate of the pre-embedded sleeve. The sealing plate is fixed inside the pre-embedded sleeve by a limiting mechanism to seal the pre-drilled hole. The first water-stop ring is sandwiched between the inner bottom plate of the pre-embedded sleeve and the sealing plate around the pre-drilled hole. The operating rod is detachably mounted on the sealing plate to move the sealing plate to the limiting mechanism. Compared with existing technologies where welding quality is difficult to control, this utility model, through the synergistic effect of the above structures, can effectively seal the dewatering well, preventing seepage and leakage in the later stages of sealing, thus improving project quality. Furthermore, this sealing device has low environmental requirements and can be used even when the groundwater level is high or when there is confined water in the strata.

The application discloses a structural soft soil vacuum preloading field model test device and method, and relates to the field of engineering construction. The test device comprises a sampling ring cutter barrel, a cutting and lifting plate, an upper sealing cover, water permeable stones, drainage plates, a connecting hose, a suction pump, a monitoring device, a flexible sealing film, a heap loading weight and the like. The thin-walled ring cutter barrel with blades is slowly pressed into the structural soft soil, the soil body is lifted by the cutting and lifting plate and placed on the water permeable stones on the site, the drainage plates and the monitoring device are arranged by using the cutting tool, the disturbance of the test to the structural soft soil is minimized, and thus the optimal vacuum preloading reinforcement scheme closer to the actual situation of the engineering site is obtained. The test device has a flexible structure and can be applied to the field model test of the large-volume soft soil in different modes such as vacuum preloading, heap loading preloading, vacuum-heap loading combined preloading and the like. The test device can meet the requirements of different drainage channel designs, different vacuum environment designs and different monitoring scheme designs, and thus the beneficial effects of improving the engineering quality and saving the funds are achieved.

This utility model relates to the field of pipe processing technology and discloses a pipe rust removal device, including a worktable and a slider. A vertical plate is fixedly connected to the upper surface of the worktable, and a groove is formed on the upper surface of the worktable. The outer wall of the slider is slidably connected to the inner wall of the groove. A support is fixedly connected to the upper surface of the slider, and a rotating frame is rotatably connected to the inner wall of the support. A cylinder is fixedly connected inside the rotating frame, and a sleeve is rotatably connected to the outer wall of the cylinder. A steel brush is slidably connected to the inner wall of the sleeve. In this utility model, through the mutual cooperation of the support, rotating frame, steel brush, sleeve, cylinder, support plate, motor, threaded rod, square block, U-shaped steel frame, and cylinder, the device adapts to different pipe diameters, improving the versatility of the rust removal device, reducing costs, and ensuring rust removal quality. It is suitable for various engineering and maintenance scenarios.

This utility model provides a steel-concrete composite column with an outer reinforced concrete inner stirrup structure, relating to the field of building structures. This steel-concrete composite column with an outer reinforced concrete inner stirrup structure includes: a reinforced concrete core column; a steel pipe sleeved on the outside of the reinforced concrete core column; outer stirrups surrounding the outside of the steel pipe; multiple V-shaped tie bars arranged between the steel pipe and the outer stirrups, with the V-shaped tie bars fixedly connected to both the steel pipe and the outer stirrups; and an outer reinforced concrete enclosure formed between the steel pipe and the outer stirrups, with the V-shaped tie bars formed within the outer reinforced concrete enclosure. This utility model's steel-concrete composite column with an outer reinforced concrete inner stirrup structure facilitates standardized production and improves work efficiency.

The utility model provides a kind of jacket positioning device, it includes positioning frame, it includes multiple positioning ring and connecting beam;A ground pile is inserted in each positioning ring, each ground pile includes anchoring section and guide section respectively, and ground pile is inserted along its own axial hole, and the outer side of guide section is equipped with gyro wheel;Jacket bottom vertically extends out and corresponds with the inserted part of ground pile, and the inserted part side is equipped with hanging ring, and gap is left between hanging ring and inserted part, and the side wall of guide part can be placed in the gap of hanging ring and inserted part, and the one end of rope is fixed with hanging ring, and the other end can be placed in the side of jacket by gyro wheel.The utility model uses positioning frame and ground pile cooperation, by first positioning frame is arranged in the mode of seabed, the position of each ground pile is determined, then ground pile is inserted into seabed by positioning ring, so that the positioning of ground pile is completed quickly, and the process of ground pile is avoided to cause influence to other position ground pile, so as to improve engineering efficiency and improve engineering quality.

The utility model belongs to the technical field of dry hanging connecting pieces in the building industry, and particularly relates to a fillet groove dry hanging connecting piece. A first concave-convex surface is arranged on the first connecting piece; the second connecting piece is installed on the first connecting piece and provided with a second concave-convex face, the second concave-convex face is in contact connection with the first concave-convex face, and concave-convex textures of the second concave-convex face and the first concave-convex face are completely matched. Compared with the prior art, the utility model has the beneficial effects that the first connecting piece and the second connecting piece are respectively provided with the concave-convex surfaces, and the concave-convex textures are matched, so that the dislocation is avoided, the friction force is increased, and the stability of dry hanging operation is enhanced; the matching degree of the concave-convex textures can be used for visually judging whether the bolt is installed in place or not, the problem that the bolt is excessively screwed or not installed in place is solved, the strength of a connecting piece and the overall engineering quality are improved, and the safety and rationality of the engineering quality can be conveniently detected in the later period. The concave-convex texture on the outer surface of the counterbore can replace a spring hanging piece, friction between the counterbore and a bolt is increased, and construction is convenient.

The invention discloses an intelligent air-raid shelter monitoring system for tunnel secondary lining concrete top rushing, belongs to the technical field of tunnel construction monitoring, and solves the problems of low efficiency, poor safety, difficulty in automatic obstacle avoidance and easiness in concrete leakage caused by dependence on manual monitoring in the existing tunnel secondary lining concrete pouring process. According to the technical scheme, the device is characterized by comprising a gear ring base fixed to a preformed hole in a vault panel of the secondary lining trolley, an outer shell provided with a camera shooting rod, a camera shooting rod lifting execution mechanism, an autorotation execution mechanism, an outer shell rotation execution mechanism, a pressure sensor and an intelligent control center; a camera is packaged at the upper end of the camera shooting rod; the intelligent control center controls the outer shell to rotate to avoid obstacles or controls the camera shooting rod to ascend and rotate to an image acquisition position according to the pressure signal, and hole features are monitored and recognized through images; and when concrete approaches, the camera shooting rod is controlled to descend to be flush with the panel, automatic plugging is achieved, and the device is suitable for automatic monitoring of the vault pouring quality and leakage prevention control in tunnel second lining construction.

The invention relates to the technical field of bridge engineering construction, and discloses a box girder internal mold dismantling device which comprises a bearing cross beam system, a supporting cross beam system, a supporting cross beam system and a supporting cross beam system, the upper end of the screw jacking system is vertically arranged on the bearing cross beam system, the lower end of the screw jacking system is provided with a pressure bearing part, and the pressure bearing part abuts against the inner top face of the box girder inner mold; and the flexible buffer layer is arranged on the outer surface of the box girder inner mold and is used for isolating the box girder inner mold from the inner wall of the box girder concrete during mold removal. According to the box girder internal formwork dismantling device, the technical problem that in box girder prefabricating construction, when an internal formwork is dismantled, the inner wall of box girder concrete is prone to being scratched, collided and the like can be solved.

The application discloses a micro projection lens and a projection system, which comprise a first lens group, a second lens group and a third lens group from an object side to an image side in sequence; the first lens group comprises at least one aspherical lens, the second lens group comprises at least one aspherical lens, and the third lens group comprises at least one aspherical lens and a group of cemented lenses; the first lens group is used for reducing distortion aberration; the second lens group is used for reducing spherical aberration and reducing the projection size; and the third lens group is used for reducing chromatic aberration. The embodiment of the application can reduce the size and weight of the projection lens, improve the projection quality, and can be widely applied to the field of optical technology.

This invention belongs to the field of control, specifically an adaptive control method and system for the concentration of filling slurry in goaf areas. The method includes dividing a sequence into intervals, constructing a segmented calculation matrix, performing parallel calculations to obtain a hierarchical floating-point operation matrix, inputting the matrix into a slurry concentration estimation model, calculating predicted slurry concentration values ​​and concatenating them to form a concentration prediction sequence, performing differential operations on the concentration prediction sequence to obtain the concentration change gradient, and triggering a precision reconstruction mechanism when the absolute value of the gradient exceeds a preset threshold. This mechanism forcibly converts non-critical variables within the corresponding interval into a high-precision floating-point format, generates a reconstruction operation matrix, and re-inputs it into the model to calculate the predicted slurry concentration value. Based on the calculation deviation, a closed-loop feedback control algorithm is used to calculate the slurry water addition adjustment coefficient. This adjustment coefficient is then used to synchronously adjust the opening of the water supply valve and the slurry delivery rate, generating a slurry ratio control command, which is output to the filling control system to achieve coordinated flow regulation and ensure stable slurry concentration.

The application discloses a construction method of a limit rail translation stable construction of a building laminated slab based on a disc buckle support, relates to the technical field of fabricated building construction, and adopts BIM technology to construct a building laminated slab construction integrated model with G4 precision, so as to determine the disc buckle support and the translation limit rail point, accordingly to erect the disc buckle support anchored by chemical anchors at the bottom, and to lay the translation limit rail with a stroke limit steel baffle on the adjustable top support of the disc buckle support; the translation mechanism integrated with the hydraulic jacking and the pulley block is assembled on the translation limit rail and the no-load test is completed; the building laminated slab is hoisted by using a four-point hoist, the translation mechanism is controlled by the hydraulic control system to synchronously and step by step jack up the building laminated slab, and after the building laminated slab is translated to the designed installation position along the translation limit rail, the pressure is synchronously released and the building laminated slab is positioned. The method can realize the accurate and stable installation of the building laminated slab, greatly improves the construction efficiency and the operation safety, reduces the construction cost, and is suitable for the fabricated building construction engineering with limited space.

The utility model relates to steel bar truss technical field, and disclose an assembly type detachable steel bar truss floor support plate formwork splicing structure, including bottom formwork, the left and right sides of bottom formwork bottom all are provided with connecting assembly, and connecting assembly includes connecting half ring, and connecting half ring fixed mounting is in bottom formwork, and the rotatory semicircle board is rotatably installed on connecting half ring, and the slide slot that can supply rotatory semicircle board sliding is seted up on connecting half ring, and locking assembly is seted up on connecting half ring, and the positioning assembly is seted up on bottom formwork, the utility model discloses through its accurate design connecting assembly, locking assembly and positioning assembly, realized the dual -purpose promotion of construction efficiency and engineering quality.

The invention relates to the technical field of workshop trusses, in particular to a large-span steel structure workshop truss structure which comprises an upper frame body, a connecting assembly, an inclined frame, a connecting cross beam and a lower frame body. According to the truss structure, the assembling mode of mortise and tenon connection and bolt connection is adopted, when the steel truss needs to be arranged, only the connecting assemblies, the inclined frames and the connecting cross beams need to be correspondingly assembled and spliced according to the mortises formed in the truss body, the triangular conical space truss structure is formed, the overall structure is good in stress performance, and the structure is simple and convenient to operate. The large-span supporting structure for the steel structure factory building is simple and convenient to disassemble and assemble and high in safety, welding and fixing at a high position by workers are not needed, the construction workload and the working difficulty of the workers are reduced, the practicability of a truss reinforcing structure is effectively improved, and the large-span supporting structure is worthy of popularization and application. And meanwhile, the modular design can further improve the construction efficiency and shorten the construction period.

The invention relates to the technical field of foundation pit construction, in particular to a pipe-in-pipe double-layer filter material artesian well dewatering structure and a construction method.The pipe-in-pipe double-layer filter material artesian well dewatering structure comprises a first filter pipe, a second filter pipe, a first filter material layer and a second filter material layer, first water permeable holes are formed in the first filter pipe at intervals, and second water permeable holes are formed in the second filter pipe at intervals; the periphery of the second filter pipe is sleeved with the first filter pipe, an avoiding distance is formed between the first filter pipe and the side wall of the precipitation drill hole, the space between the side wall of the precipitation drill hole and the first filter pipe is filled with the first filter material layer, an avoiding distance is formed between the first filter pipe and the second filter pipe, and the space between the first filter pipe and the second filter pipe is filled with the second filter material layer; the diameter of the coarse filter material of the first filter material layer is greater than that of the fine filter material of the second filter material layer. According to the invention, surrounding underground water is in contact with the coarse filter material in the first filter material layer and the fine filter material in the second filter material layer in sequence; therefore, the condition that soil particles are deposited in the precipitation drilling well is reduced, and the foundation pit precipitation effect is improved.

The invention provides a method for simulating diffusion of a regenerant represented by a dynamic coefficient in aged asphalt, and relates to the technical field of road material regeneration, the method comprises the following steps: measuring the dynamic viscosity of the regenerant at a plurality of preset temperatures, calculating the kinematic viscosity, and carrying out temperature-viscosity conversion on the kinematic viscosity to obtain the characteristic parameters of the regenerant; a temperature field changing along with time is constructed, the kinematic viscosity of the regenerant changing along with time is calculated according to the temperature field changing along with time and the characteristic parameters of the regenerant, and the dynamic viscosity of the regenerant changing along with time is calculated; calculating the time-varying diffusion coefficient of the regenerant in the aged asphalt; a three-dimensional space calculation domain is constructed, and initial concentration distribution and zero-flux boundary conditions of the regenerant are set in the three-dimensional space calculation domain; and substituting the time-varying diffusion coefficient of the regenerant in the aged asphalt into a three-dimensional expansion equation of a Fick second law, and solving by adopting a finite difference method to obtain the time-varying diffusion concentration distribution of the regenerant in the aged asphalt.

The invention discloses a main arch section high support installation control method, which comprises the following steps: S1, obtaining design parameters of a main arch section, structure parameters of a high support and installation environment data, and preprocessing the data; s2, based on the preprocessed data, dividing installation batches of the main arch sections and supporting units of high supports, and determining the supporting positions of the high supports corresponding to the main arch sections of all the installation batches; and S3, posture data and high support stress data in the main arch segment installation process are collected, and the dynamic change rule of the data is captured through the time sequence analysis model. According to the main arch section high support installation control method, the dynamic change rule of the data can be accurately captured by collecting the attitude data of the main arch section and the stress data of the high support in real time and combining the time sequence analysis model, any abnormity in the installation process can be effectively monitored, and it is ensured that the main arch section is accurately installed according to design requirements.

The utility model discloses a wind-resistant device for road surface construction, which comprises a support frame, a wind shield assembled on the support frame and a counter weight for weight increment, the wind shield comprises a rectangular part and a triangular part arranged on one side of the rectangular part, the triangular part corresponds to the windward side of the wind shield, and when the support frame is limited on a road surface, the triangular part is arranged on the windward side of the wind shield. And the triangular part guides and shunts the wind blown to the wind shield to reduce the wind speed behind the wind shield, so that the wind speed of a pavement construction area can be effectively reduced, a relatively stable low-wind environment is created in the construction area, and smooth construction is guaranteed.

The application discloses a waterproof structure for an opening of a newly-built structure connected to an existing underground structure and a construction method, which comprises an existing structure, a connected structure and a ground wall; an inner lining wall of the existing structure connected to the ground wall is provided with a connecting opening connected to the connected structure; a water stop steel plate is arranged between the connecting opening and the corresponding connected structure to form waterproofing. During construction, the ground wall and the existing structure are firstly constructed, and the water stop steel plate belonging to the existing structure is arranged; then, a breaking embedded part embedded in the ground wall is used to break the part of the ground wall which needs to be built into the connected structure, and the corresponding steel bars are cut; finally, the water stop steel plate belonging to the connected structure is arranged, and the connected structure is poured. The waterproof structure and the processing method can minimize pollution, improve construction efficiency, completely cut off the water seepage path of the opening interface between the existing underground structure and the newly-built connected structure, and ensure the waterproof effect of the whole structure.

The application discloses a construction method of a color steel plate enclosure system of a biosafety protection three-level laboratory, and belongs to the technical field of laboratory construction. The application constructs a three-dimensional model of the laboratory through BIM, presents the positions and directions of equipment and pipelines, carries out simulation analysis on air flow organization through CFD, and obtains air flow direction, speed and pressure distribution data. In the construction process, AR is used for auxiliary positioning and guidance in the construction site, the construction process is carried out based on the optimized construction scheme, the entire laboratory enclosure system is constructed through scientific and reasonable design, material selection, installation and sealing treatment, the leakage and diffusion of pathogenic microorganisms in the laboratory can be effectively prevented, digital virtual construction, factory prefabrication and on-site assembly construction are used, the amount of on-site opening and rework is effectively reduced, the construction cost and construction period are saved, the engineering quality is improved, and the safety performance of the high-level biosafety laboratory is further ensured.

The invention relates to a tunnel ditch cable trough trolley and a construction method thereof.The tunnel ditch cable trough trolley comprises a trolley frame and a ditch cable trough formwork assembly, and the left side and the right side of the trolley frame are each provided with a plurality of transverse moving lifting mechanisms at intervals in the tunnel extending direction; the transverse moving and lifting mechanism comprises a transverse moving mechanism for driving the ditch cable trough formwork assembly to transversely move and a lifting mechanism for driving the ditch cable trough formwork assembly to ascend and descend, the two ends of the groove formwork are each provided with an end steel formwork assembly, and the end steel formwork assemblies can stretch out and draw back in the direction perpendicular to the groove formwork. The end steel formwork assembly is composed of a plurality of end steel formworks, and one end of each end steel formwork abuts against the tunnel side wall, so that the tunnel side wall, the vertical wall formwork and the end steel formwork assembly can be matched with one another to form a relatively-closed die cavity. By means of the trolley and the matched construction method, the problems that in existing tunnel ditch and cable trough construction, the end plugging effect is poor, the forming quality is not easy to control, and the construction efficiency is low are solved.

This invention discloses an intelligent big data processing method and system based on a digital sand table, comprising: acquiring engineering drawings and real-time project progress records; using the engineering drawings as a framework, supplementing the framework content according to the project progress records to obtain a digital sand table model; and correcting the digital sand table model based on real-time acquired high-precision images to obtain a digital sand table reflecting the actual situation. By combining engineering drawings, real-time construction progress, and high-precision image data, the digital sand table model can be dynamically corrected, achieving real-time visualization of construction progress. Compared with traditional methods, this technology provides higher accuracy and timeliness, effectively avoiding information lag and error accumulation problems. Through accurate progress assessment and real-time monitoring, managers can better grasp project progress, optimize resource allocation, identify construction deviations in advance, ensure timely and high-quality project completion, and improve construction efficiency and project quality.

According to the technical scheme, the deformation joint leakage filling device is characterized in that the deformation joint leakage filling device comprises a grouting pipe, one end of the grouting pipe is provided with a tail end, and the outer portion of the tail end is in threaded connection with a connector; the fixing assembly is arranged outside the grouting pipe and used for fixing the grouting pipe, the fixing frame is arranged, the fixing frame is movably installed outside the grouting pipe, the fixing frame can be firmly connected with peripheral structures (such as the building structure surface and a supporting object) through fixing bolts, and the grouting pipe can be effectively prevented from shifting; meanwhile, when the depth of the grouting pipe penetrating into the deformation joint needs to be adjusted, the fastening bolt can be unscrewed and adjusted to the proper position, then the fastening bolt is tightened, different grouting requirements are met, after the grouting pipe is fastened through the fastening bolt, shaking of the grouting pipe during grouting can be effectively reduced, and the grouting pipe can be stably fixed through stabilizing the grouting pipe; the grout can be uniformly and stably injected into a target area, and the compactness and integrity of grouting are improved, so that the engineering quality is improved.

The application relates to the technical field of building construction, in particular to a round pipe column foot pre-burying positioning method and device. The method comprises the following steps: obtaining a steel structure construction drawing; constructing a round pipe column and pre-burying foot bolt construction model according to the steel structure construction drawing; establishing the positioning connection of the pre-burying foot bolt and vertical main reinforcement according to the construction model; carrying out construction model collision analysis and three-dimensional simulation experiment based on the positioning connection of the pre-burying foot bolt and the concrete main reinforcement; and carrying out steel structure device processing and installation based on the construction model. The engineering quality is improved by optimizing the construction node, the problem that the pre-burying steel plate cannot be reused is solved, the vertical column reinforcement and the foot bolt pre-burying steel plate grinding tool can be freely stretched and contracted to control the position of the reinforcement, the effect of reusing different column diameters is achieved, the construction efficiency is improved, the progress is accelerated, and good economic and social benefits are achieved.

The utility model discloses a prefabricated part plastering water collecting device, and belongs to the technical field of building construction equipment, the prefabricated part plastering water collecting device comprises a main frame, transverse guide rails are fixedly mounted on the two sides of the top of the main frame, transverse line adjusting mechanisms are arranged in the transverse guide rails, and each transverse adjusting mechanism comprises a screw rod which is rotatably mounted in the corresponding transverse guide rail; the outer surfaces of the screws are in threaded connection with moving blocks, through grooves are formed in the sides, away from each other, of the two screws, connecting rods are fixedly installed on one sides of the moving blocks, one ends of the connecting rods penetrate through the through grooves to be fixedly provided with L-shaped connecting rods, longitudinal beams are fixedly installed between the two L-shaped connecting rods, and a driving mechanism is arranged between the two transverse guide rails. The driving mechanism comprises a double-head reciprocating motor; the double-head reciprocating motor is fixedly mounted at the top end of the main frame; through automatic trowelling of the prefabricated part, the labor intensity of workers is greatly reduced, the working efficiency is improved, and the final engineering quality and the appearance effect are improved.

The application relates to the technical field of hydraulic engineering construction, and discloses a novel tamping device for earth-rock cofferdam construction and a use method, which comprises a mounting frame and a control module, the inner bottom wall of the mounting frame is provided with a tamping mechanism and a crushing mechanism, and the bottom of the mounting frame is provided with a supporting mechanism; the crushing mechanism comprises a lifting motor fixedly installed on the inner bottom wall of the mounting frame, a threaded rod is fixedly installed at the output shaft of the lifting motor, a threaded sleeve is threadedly connected to the outer surface of the threaded rod, a moving plate is fixedly installed at the bottom of the threaded sleeve, and an extension rod is fixedly installed between the top of the moving plate and the inner bottom wall of the mounting frame. In the application, the distance of reaching the hard block and the size of the hard block are analyzed in real time by an ultrasonic ranging sensor and a microwave sensor and are fed back to a controller, the controller sends corresponding instructions to adjust the depth of the crushing roller, and the rotating speed of the crushing motor is adjusted, so that the hard blocks of different sizes are conveniently processed, and the tamping effect and engineering quality are improved.

The utility model discloses a kind of modular adjustable mass concrete temperature monitoring devices based on, including double helix linkage adjusting mechanism and honeycomb compression-resistant shell;Double helix linkage adjusting mechanism includes: vertical adjusting mechanism and horizontal adjusting mechanism;Vertical adjusting mechanism includes: H-type support, trapezoidal thread screw rod and hand wheel;H-type support includes: crossbeam and the vertical beam located in the both sides of crossbeam;Cavity is equipped in vertical beam;Floating mounting seat is equipped in the transverse center hole of crossbeam;Trapezoidal thread screw rod is penetrated crossbeam from bottom to top, and passes through the thread hole of floating mounting seat;Horizontal adjusting mechanism is equipped in the cavity of vertical beam;Honeycomb compression-resistant shell is fixedly connected with the bottom end of trapezoidal thread screw rod;Temperature detection device is encapsulated in honeycomb compression-resistant shell inside.The utility model is combined by double helix linkage adjusting mechanism and honeycomb compression-resistant shell, realize the high-precision three-dimensional positioning and stable protection of temperature monitoring device in mass concrete.

The invention discloses a prefabricated jig frame for web steel bars in hanging basket cantilever construction and a construction method of the prefabricated jig frame, and relates to the technical field of box girder construction. The prefabricated jig frame comprises a supporting part and a mounting part which are connected through a fixed connecting rod and arranged in parallel. The supporting part comprises a supporting part stand column and a horizontal rib comb tooth clamping groove rod. The installation part comprises installation part stand columns, the installation part stand columns are fixedly connected through horizontal connecting rods, a fixed end head rod is arranged on the side, back on to the supporting part, of one end of the installation part, an adjustable end head is installed at the other end of the installation part, and the adjustable end head is installed on the horizontal connecting rods; a fixed comb tooth clamping groove rod and three adjustable comb tooth clamping groove rods are arranged on the portion, between the adjustable end and the fixed end rod, of the installation part stand column from top to bottom. The prefabricated jig frame can be adjusted in the length direction, the width direction and the height direction, and universality is high; and in cooperation with ground prefabrication and integral hoisting construction, the construction time can be greatly shortened, the construction quality is improved, and the high-altitude operation risk is reduced.

The application discloses a distributing device for terrazzo floor, which comprises a walking frame, a walking device, a material bin, a distributing hopper and a height adjusting device.