
Trench Boxes Manufacturing & Supply
ESC has fully developed its Trench Box Series (also known as Trench Shields) used as a two-sided excavation support system. It is a used as a temporary earth retaining structure which allows safe access to an excavation that has been cut vertically. Stability is ensured within the trench whilst providing a minimal excavation footprint for works to be carried out. This helps prevent any damage to nearby utilities and structures.
Trench Boxes
Features
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Design and manufactured in accordance with EN 13331—1 and EN 13331- 2.
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3rd party product certificates available for all products.
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Heavy duty robust design.
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Flat pack delivery .
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Fixed or adjustable struts available in any required length .
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Custom box sizes are available.
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Soil pressure must be assessed by qualified professional engineer.
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Assembly as per ESC procedures
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Recommended maximum depth 5.6m.
Specifications


STANDARD TRENCH BOX
MANHOLE TRENCH BOXES
ADJUSTABLE TRENCH BOXES

Product Certificate

Design Verification

ESC completed third-party verified structural calculations and professionally completed Finite Element Analysis of the proprietary ESC Trench Box design system, with special attention on the spreader connections to the panels. A wide range of loading conditions was simulated to verify the robustness of the system.
The international standards applied in the structural design included: EN 1990: Eurocode 0, EN 1991: Euro-code 1, EN 1992: Euro-code 2 and EN 1997: Euro-code 7.
A full scale component test with a third party independent witness was also completed to verify the design calculations with a focus on on the most critically loaded areas and potential weak points. A specially designed test rig was constructed to simulate the soil loads with a series of strain gauges situated throughout the trench panel structure to measure deflection of the structure under various loading combinations.