Group: TRELLEBORG
Catalog excerpts
Heinke Tunnel Segment Gaskets Trelleborg Ridderkerk BV
Open the catalog to page 1Trelleborg Ridderkerk has unrivalled expertise in seal design and elastomer technology, and is the world’s leading manufacturer of elastomeric gaskets for immersed tunnels, cut & cover tunnels and bored tunnels. For the segmental lining of bored tunnels Trelleborg Ridderkerk supplies tunnel segment gaskets (TSGs) under the trade name Heinke. Since 1985, Heinke TSGs have been successfully supplied to major segmentally lined tunnel projects around the world. The TSGs, which are located in precast grooves encircling the mating faces of each segment, give a secure rubber-to-rubber waterproof...
Open the catalog to page 2When specifying TSGs for segmented tunnel applications, there are a number of factors which need to be taken into account. It is the particular combination of factors in each case which determines the eventual choice of gasket, which in turn ensures an efficient, watertight seal over the projected service life of the tunnel. Upon request we can forward a Specification Guide which lists these factors. On the basis of information provided, Trelleborg Ridderkerk will be able to specify the most suitable and economical Heinke TSG for a particular application. To ease the selection process,...
Open the catalog to page 3Gaps and displacements occur between segments, either as an allowance for building tolerances or to help steerage, line and level during the construction of the tunnel (see Fig A). The purpose of the TSG is to seal to the required pressure at the maximum expected gap and displacement. As the size of the gap and/or displacement increases, the ability for a given TSG to withstand water pressure decreases. It is important to know the forces required to compress the gasket as these dictate the force required to bring two segments completely together. Trelleborg Ridderkerk can provide this...
Open the catalog to page 4The groove is required to locate the gasket in the segment and is of a size that when the segments are closed, (ie no gap), the volume of rubber is housed within the groove. If the volume of rubber exceeds the groove dimensions, it will not be possible to close the segments fully. Trelleborg Ridderkerk’s gaskets are designed such that the elastomeric material can be compressed to fit within a given groove. The size of the groove therefore has a major effect on the choice of TSG and its subsequent performance. Trelleborg Ridderkerk will recommend and supply an adhesive appropriate for...
Open the catalog to page 5Policy quality, environment, safety and health Trelleborg Ridderkerk BV Verlengde Kerkweg 15, 2985 AZ Ridderkerk PO Box 4007, 2980 GA Ridderkerk, The Netherlands Tel: +31 180 49 55 55 Fax : +31 180 43 30 80 ridderkerk@trelleborg.com www.trelleborg.com/ridderkerk The policy of Trelleborg Ridderkerk BV is to design, produce and deliver rubber products which are in accordance with the customers’ requests, needs and expectations. Our policy is based on the Trelleborg Group policy statement ‘Code of Conduct’, which is presented on the website www.trelleborg.com. During the development of...
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