Suspension-type sliding form and construction method of one-time molding of large-inclination trash rack

Abstract

The invention discloses a large-inclination-angle trash rack-shaped suspension sliding form and a construction method thereof, which include a mold body system and a suspension system; the mold body system includes a trash rack-shaped template formed by splicing panels, and a Ribs and supporting trusses; a working platform is laid on the upper surface of the formwork system; a hydraulic control system is installed on the working platform; the suspension system includes a suspension support frame of a truss structure, and the suspension support frame is fixed on the trash block through anchor bars and steel supports The platform on the grid; there are multiple sets of suspension rods connected to the bottom of the suspension support frame, and the bottom end of the suspension rods is connected to the truss of the form system through a hydraulic jack; the suspension angle of the suspension rods is consistent with the inclination angle of the trash rack; the form system There is a concrete conveying system along the installed steel bars and tracks at the top; there is a missing maintenance system connected to the lower part of the formwork system; the steel bars are bound in place at one time, the installation of grid grooves and tracks is completed at one time, and the second phase of concrete construction is canceled. The characteristics of one-time forming of hanging sliding form.

Description

technical field [0001] The invention belongs to the field of construction of a water inlet of a hydropower station, and in particular relates to a one-time forming suspension type sliding form of a large-inclination trash rack and a construction method thereof. Background technique [0002] At present, the traditional construction process of the large-inclination trash rack at the water inlet of the hydropower station is: "Firstly, the reinforced concrete construction of the first phase of the grid pier is carried out layer by layer, and the grid groove and track embedded parts are reserved at the same time, and then the grid groove and track are installed. Finally, the grid groove Phase II Concrete Construction". The traditional construction technology has relatively many construction procedures, takes a relatively long construction period, and relatively high engineering costs. System analysis mainly has the following outstanding shortcomings and deficiencies: [0003] 1...

AI Technical Summary

Problems solved by technology

[0003] 1. Scaffolding needs to be erected, and the investment in manpower and material resources is large: No matter it is the first phase of reinforced concrete lining, or the installation of grid grooves, cleaning machine tracks, and the second phase of grid groove lining, etc., it is necessary to install scaffolding as a working platform

In addition, it is inconvenient to lift the inclined structure, and it must be supported by lifting equipment, which requires a lot of human resources and material resources, which increases the project cost

[0004] 2. Concrete lining is constructed layer by layer, and the construction quality control is very difficult: no matter whether the mold is adopted or the formwork is used, the concrete construction process and project quality cannot be controlled very intuitively; For lining, it is very difficult to realize uniform storage, layered unwinding, dense vibration and other processes, and there are many construction joints, so it is difficult to effectively control the quality

At the same time, the lining concrete cannot be removed from the mold until it is strengthened, and construction defects cannot be found at any time during the construction process, and cannot be effectively dealt with in a timely manner, nor can the concrete be effectively maintained in a timely manner, which increases the difficulty of quality control to a certain extent

[0005] 3. The construction procedures are complicated, high-altitude operations, and high safety risks: erection and dismantling of scaffolding on a 60-degree slope, measurement and setting-out, control, installation and reinforcement of steel bars, installation and correction of grid grooves and tracks, concrete formwork, demolition Frequent construction of molds, etc., there are high-altitude operations, the workload of safety protection and safety protection is heavy, safety management is difficult, and safety risks increase significantly

[0006] 4. There are many construction procedures, the construction speed is limited, and the project cost is high: the first phase of reinforced concrete construction, pre-embedded grid groove, track embedded parts and installation, the second phase of concrete construction, multiple installation and disassembly of formwork and other construction processes are frequently alternated, which seriously restricts construction speed

At the same time, the hoisting equipment is occupied for a long time, and the construction cost is significantly increased

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