14results about How to "Improve construction stability" patented technology

The utility model provides a kind of concrete slab joint sweeper, including support, joint sweeping mechanism and walking wheel, support includes frame body and handrail, joint sweeping mechanism includes driving device and joint sweeping brush, joint sweeping brush is arranged in the center of frame body front end bottom, driving device is arranged on the upper portion of frame body, walking wheel is arranged in the center of frame body rear end bottom, the utility model guarantees the accuracy of joint sweeper, construction quality is better, efficiency is higher, economy is more optimal, convenient time-saving.

The present application belongs to the technical field of barrier wall construction, and particularly relates to a vertical barrier wall grouting construction equipment for performing grouting operation on the inside of a pile body of a barrier wall, comprising a containing pipe, an outer wall of the containing pipe being in abutment with an inner wall of the pile body, a medium driving cavity being formed in the inside of the containing pipe; a grout outlet pipe, the grout outlet pipe being coaxially sleeved in the medium driving cavity of the containing pipe, the grout outlet pipe being driven by the medium to move axially along the pile body to be ejected or retracted; a grout conveying pipe, the grout conveying pipe being coaxially arranged in the inside of the grout outlet pipe, the grout conveying pipe being in sliding fit with the grout outlet pipe, the grout conveying pipe being rotationally connected with the containing pipe; the present application conveys slurry to the grout outlet pipe through the grout conveying pipe and outputs the slurry outward, the containing pipe drives the grout outlet pipe to reciprocate axially along the pile body by means of the medium driving effect, and a linkage disturbance member generates disturbance, the integrated structure realizes synchronous cooperation of grouting and vibration functions, and can discharge air bubbles in the slurry; and the medium driving ensures that the vibration frequency is uniform and controllable, and guarantees the compactness of the pile body.

The utility model relates to a segment hand hole plugging and template fixing device based on a suspender embedded sleeve. The segment hand hole plugging and formwork fixing device based on the suspender embedded sleeve comprises the embedded sleeve, a suspender and a formwork supporting mechanism. The embedded sleeve is nested at the bottom of a hand hole of a duct piece, internal threads are arranged in the embedded sleeve, the formwork supporting mechanism is mounted at an opening of the hand hole through the hanging rod, one end of the hanging rod is in threaded connection with the embedded sleeve, the other end of the hanging rod is located on the outer side of the formwork supporting mechanism and is in threaded connection with an end nut, and the hanging rod is further sleeved with a middle nut. The middle nut is located in the hand hole. Damage of a traditional drilling fixing mode to the segment structure is avoided, and the construction efficiency and stability are improved; the plugging mechanism is filled with micro-expansive concrete and is combined with a water stop ring, so that the plugging strength and the waterproof performance are effectively improved, the long-term stability of hand hole plugging is ensured, and the construction convenience, the applicability and the waterproof reliability are improved.

The invention is applicable to the technical field of solid waste resource utilization and novel building material preparation, and provides solid waste based lightweight fine-grained ceramsite as well as a preparation method and application thereof, and the ceramsite is prepared from titanium gypsum, iron tailing powder, a solid waste based cementing material, a chelating agent, a nanocrystalline nucleus early strength agent and mixing water according to a specific proportion. The preparation method comprises the following steps: dry mixing of raw materials, preparation of an additive solution, wet mixing, rolling granulation, normal-temperature curing, 60-95 DEG C low-temperature steam curing and drying. According to the invention, the titanium gypsum, the iron tailing powder and other low-value solid wastes are used as main raw materials, and the lightweight fine-grained ceramsite with small particle size, stable structure, low water absorption and low dry density is successfully prepared through an optimized ratio and a unique low-temperature steam curing process. The product can be used as a fine aggregate to be applied to plastering mortar, completely or partially replaces natural gravel, and the mechanical property and construction stability of the mortar are improved while the mortar capacity is reduced.

The utility model provides a corner constructional column template reinforcing device, which belongs to the technical field of building construction, and comprises a bottom support frame, the top wall of the bottom support frame is fixedly connected with telescopic extension columns which are symmetrically distributed, and the top walls of the telescopic extension columns are fixedly connected with a top support frame. Symmetrically-distributed sliding blocks are slidably connected to the inner walls of the bottom supporting frame and the top supporting frame. According to the utility model, through the cooperation of a threaded cone, a strong spring, a pin rod, a pin hole and other parts in the arranged double-limiting assembly, the flexible adjustment and accurate positioning of the angle between the positioning plate A and the positioning plate B are realized, and the device can be tightly attached to and reinforce a template no matter a corner wall body with a right angle or other angles; the reinforcing effect of constructional column formworks at different corners is effectively guaranteed, the construction quality and stability are improved, and the problems that in the prior art, different corners are difficult to accurately adapt, consequently, the formworks are not tightly attached to the wall, and the reinforcing effect is poor are solved.

This invention provides a prefabricated continuous free-form glulam ceiling system and its construction method. The system includes a main structural steel beam, steel column flanges, free-form glulam main panels, dovetail joints, and concealed F-shaped metal connectors. The glulam main panels undergo rough back processing, node processing, front rough processing, and front precision processing in the factory using industrial robots, achieving integrated high-precision manufacturing of the free-form shape and assembly nodes. Adjacent glulam components are connected by customized dovetail joints. The glulam main panels are prefabricated and connected to the main structural steel beams via concealed F-shaped metal connectors, and are not exposed after installation. The ceiling modules are assembled and glued in the factory, and then installed on-site by hoisting as a whole and bolting to the steel column flanges, thus achieving a prefabricated construction mode with a high prefabrication rate and low on-site dependence.

This application provides a method for seepage prevention and reinforcement of soil around a tunnel, belonging to the field of grouting materials and soil and rock reinforcement technology. The method for seepage prevention and reinforcement of soil around a tunnel includes the following steps: (1) conducting geological exploration of the soil around the tunnel to identify and divide different levels of weak seepage areas; (2) arranging anode electrodes, auxiliary electrodes and cathode electrodes in an alternating manner along the tunnel circumference through secondary grouting holes; (3) arranging independent calcium source pipes and carbon source pipes along the tunnel axis, wherein the calcium source pipes and carbon source pipes are provided with openings; (4) releasing calcium source solution and carbon source solution into the soil around the tunnel through the calcium source pipes and carbon source pipes, while applying control voltage and current to the anode electrode, auxiliary electrode and cathode electrode to drive ions in the calcium source solution and carbon source solution to migrate directionally under the action of electric field and react in the weak seepage area to generate cement, thereby achieving soil reinforcement and seepage prevention; (5) detecting the reinforcement effect.

The rock breaking pipe jacking machine and the construction method thereof, which comprise a supporting base, a supporting mechanism fixedly arranged at the top end of the supporting base, a jacking mechanism slidingly arranged at the top end of the supporting mechanism, an adjusting mechanism installed on the inner wall of the jacking mechanism, and an unfolding mechanism fixedly arranged at the outer side of the adjusting mechanism. Through the mutual cooperation between the servo motor and the transmission screw rod and the moving guide block, the moving guide block can move close to or away from each other through the rotation of the transmission screw rod. The device can unfold the counterforce mechanism from the pipe jacking machine main body through the unfolding mechanism, and provide counterforce support for the hydraulic output rod without additional installation of the back wall, effectively solving the technical problem that the pipe jacking operation cannot be smoothly carried out due to the narrow space of the working well and the inability to install the back wall.

This utility model discloses an adjustable support device for reinforcing the load-bearing components of an integrated platform, comprising support columns, a load-bearing beam, circumferential positioning clamps, detachable temporary connectors, and high-strength tie rods. Two support columns are provided, one on the left and one on the right. The two ends of the load-bearing beam are respectively connected to the upper part of the support columns. The circumferential positioning clamps include a left positioning clamp and a right positioning clamp, which are used to clamp the load-bearing components mounted on the load-bearing beam. The detachable temporary connectors are installed on the top of the load-bearing components, serving as temporary reinforcement supports. This device achieves three-dimensional coordinated positioning in the vertical, circumferential, and radial directions, improving construction efficiency. It is particularly suitable for scenarios with stringent safety requirements, such as nuclear power plants, and solves the defects of traditional processes, such as large positioning deviations, cumbersome reinforcement, and easy swaying of load-bearing components.

The application relates to a power cable convenient traction storage supporting device which comprises a base, a storage structure and a traction structure. The traction structure and the storage structure are sequentially installed on the base along the cable storage direction. Two traction structures are symmetrically arranged on the base and enclose a traction channel convenient for the cable to pass through, and the cable is moved to the storage structure direction by the two traction structures. The device relies on the base to realize overall bearing and on-site layout. The cable sequentially passes through a first limiting structure, the traction structure, a second limiting structure, the storage structure and a storage guide structure along the operation direction. Through the cooperation of the structures, the automatic limiting and guiding, self-adaptive traction and regular storage of the cable are completed.

The utility model relates to the technical field of suspended ceilings, in particular to a novel double eyelid suspended ceiling assembly which comprises a first installation hanging plate, a second installation hanging plate is arranged at the bottom of the first installation hanging plate, and the first installation hanging plate and the second installation hanging plate are connected in a sliding mode through a plurality of connecting mechanisms. The connecting mechanism can freely adjust the distance between the first mounting hanger plate and the second mounting hanger plate, and the left end of the first mounting hanger plate is fixedly connected with a plurality of inserting mounting pipes. By moving one mounting hanger plate, driving the pressurizing nut and the sliding block to move in the sliding channel and rotating the pressurizing nut after the mounting hanger plate is in place, extrusion force on a connecting part is enhanced, the two hanger plates are reinforced, construction efficiency and stability are improved, complicated tools and cumbersome steps are not needed in the adjusting mode, the construction efficiency is greatly improved, and the construction cost is reduced. And meanwhile, the stability and reliability of the suspended ceiling assembly after installation are guaranteed, and use is very convenient.

The application relates to the technical field of municipal drainage construction, and discloses a kind of installation construction method of integrated lifting pump station under complex environment, comprising the following steps: S1, construction control network is established in the area to be installed, including control pile, review survey point and construction leveling point, to determine the center position of pump station shaft, the installation orientation of water inlet and outlet and hoisting reference line, so that the subsequent work shaft construction, pump station hoisting, pipeline connection and backfilling retest all adopt the same coordinate reference; the application combines reverse work shaft, directional lowering, attitude correction, pipe connection limiting, zoned backfilling and acceptance closed loop into continuous construction control chain, so that pump station installation no longer only relies on hoisting experience and manual observation, but forms a measurable, correctable and reviewable construction method, which has small disturbance to surrounding soil, small environmental impact, does not need large-scale slope, has small space occupation, can reduce earthwork excavation amount, has strong environmental adaptability, is safe and reliable, and has good construction quality effect.

The application discloses a pipeline transportation platform for fluidized solidified soil, an operation method and a quantitative evaluation method for mixing uniformity, and raw material supply and pipeline transportation systems include a slurry pump, a centrifugal pump, a main conveying pipeline, a secondary conveying pipeline, a mortar mixing pool and a pump control hub; a proportioning control system is arranged at the mortar mixing pool, and the proportioning control system is used for controlling proportioning parameters of a solidifying agent powder; an online detection system is used for detecting viscosity, flow, temperature and pressure data of sludge in the main conveying pipeline in real time; and a data acquisition system is used for analyzing data fed back by the online detection system and issuing operation instructions for valves and the pump control hub, the proportioning control system of the raw material supply and pipeline transportation system. The application can effectively prevent pipeline blockage caused by solidification of fluidized solidified soil at the bottom of the pipeline, can reduce pipeline pumping energy consumption, and ensures long-distance pipeline transportation of sludge.

The application discloses a core concrete pouring operation platform based on a large-cantilever cover beam U-shaped thin-wall shell, and aims at solving the problem of operation difficulty in core concrete pouring of the U-shaped thin-wall shell. The application comprises a steel bracket installed on the top of the cover beam shell body, the upper part of the steel bracket is provided with an operation platform, the steel bracket comprises longitudinal steel supports symmetrically arranged on the two sides of the U-shaped shell body, multiple transverse steel supports are arranged along the length direction of the cover beam shell body, and the multiple transverse steel supports are cross-sectioned with multiple angle steel support frames in the inside of the cover beam shell body. The operation platform is suitable for core concrete pouring operation of a large-cantilever prefabricated thin-wall cover beam formwork, has the advantages of convenient installation and removal, stability and reliability, and greatly simplifies the high-altitude operation link through optimization of the construction process, thereby improving the construction efficiency and operation safety.