Fixed-form
pavers are suitable for a wide range of canal lining projects, including
various sizes, widths, and slope configurations. Fixed-form paver machines
offer high accuracy, uniformity, and durability for canal lining by ensuring
precise slope and alignment control, delivering consistent concrete compaction
and a smooth surface finish. These machines are user-friendly, require less
manpower, and are customizable for various canal shapes, leading to overall
cost savings and improved project outcomes.
A fixed-form paver machine for canal lining is a specialized construction equipment used to lay, compact, and finish concrete in canal beds and slopes. Unlike slipform pavers that use a continuous moving mould, fixed-form pavers rely on stationary side forms (railings) to shape and support the concrete. Fixed form paving is a more traditional approach that involves manually setting forms along the edge of the pour area, then mechanically placing and finishing the concrete within those boundaries. It requires more setup time and handwork but offers greater flexibility for projects with complex or variable designs.
Construction
and working process of typical fixed-form paver machine involves using a paver
machine with a vibrating screed, which travels along steel or wooden rails
installed on both sides of the canal bed. This ensures the concrete is laid with
consistent thickness and a smooth finish. A lattice-type, welded steel main
frame is assembled with pin connections and set on heavy-duty adjustable jacks
at each corner to define the final depth of the canal lining. Drive and idler
bogie wheels are fitted to the jacks, allowing the machine to travel on the
pre-levelled running rails. Freshly mixed concrete is poured or fed into the
paver's hopper. An auger conveyor then spreads the concrete evenly across the
width of the canal. For consolidation, electrically operated pan or gang needle
vibrators are used to remove air voids and achieve uniform density. A finishing
screed or cylinder moves across the surface to level and smooth the concrete,
providing the final surface finish. The carriage's speed can be adjusted for
precise control.
Fixed-form
paver’s modular designs with interchangeable sections allow for adjusting the
paving width to match the specific canal dimensions. Machines can be designed
to pave steep side slopes and are equipped with adjustable formwork to support
the slope. By using fixed forms and an adjustable carriage movement, these
pavers achieve excellent flatness and a uniform, high-strength finish. While
well-suited for canal construction, fixed-form pavers are also used for other applications
requiring high precision, such as airport runways, city roads, and industrial
floors.
Fixed-form paver machines are available in various configurations to suit different canal designs. Double-slope paver can simultaneously line both side slopes of a trapezoidal or parabolic canal in a single pass, ensuring high productivity. For wider canals, a paver with a half-width mould can line one side slope and half of the bed in each pass. For projects with smaller dimensions, smaller and more maneuverable, single-slope paver machines are available. While rail-mounted paver machines are available for large-scale projects, which can be guided by rails to ensure precise alignment.
