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Andrew Lees

Andrew Lees

Andrew Lees is an award winning lecturer and the originator of the new Tensar T-Value method for working platforms.

Recent Posts by Andrew Lees:

by Andrew Lees, on 11-Jun-2020 07:30:22

Load-bearing reinforced soil walls can cut construction costs by up to 75% and halve build times compared with traditional solutions, while being robust and low-maintenance. Reinforced (or mechanically-stabilised) soil is …

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Topics:Walls & Slopes

by Andrew Lees, on 14-May-2020 05:39:55

Drainage is a key consideration when designing earthworks, including reinforced soil structures, using compacted clay fill. Effective stress, negative pore pressure and suction Ground movement and soil slope instability can …

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Topics:Walls & Slopes

by Andrew Lees, on 23-Apr-2020 04:32:09

Many of Downtown Washington DC’s metro stations were designed by architect Harry Weese who used exposed concrete and repetitive designs to create huge cathedral-like underground spaces. Washington metro cathedral-like underground …

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Topics:Temporary Works

by Andrew Lees, on 16-Apr-2020 05:05:53

In cities, where demand for space and the price of land are high basements are a common method of maximising development space. Constructing basements is more complicated than adding above-ground …

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Topics:Temporary Works

by Andrew Lees, on 09-Apr-2020 04:15:42

Geosynthetic cellular foundation mattresses can be a cost-effective and greener alternative to traditional foundations and ground treatment when building embankments on very weak ground. Faced with the challenge of building …

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Topics:cellular foundation mattresses

by Andrew Lees, on 02-Apr-2020 05:04:24

The degree of interlock of granular materials with geogrid is fundamental to the performance of mechanically stabilised layers. Granular materials can behave as liquids or solids – in an unconfined …

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by Andrew Lees, on 19-Mar-2020 06:44:00

Following on from our last blog, this time we look at how large scale triaxial tests are critical in predicting the performance of granular materials mechanically-stabilised with geogrid. Ground Coffee …

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Topics:Temporary Works

by Andrew Lees, on 13-Mar-2020 05:26:33

Triaxial tests are an excellent way of measuring the mechanical properties of soil, rock and granular materials, with results used to solve a wide range of geotechnical engineering problems. Triaxial …

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Topics:Temporary Works

by Andrew Lees, on 20-Feb-2020 04:57:29

A full-scale field trial on the Canadian Prairies has verified our new T-value design method for working platforms stabilised with geogrid. As discussed, our T-value design method enables a more …

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Topics:Temporary Works

by Andrew Lees, on 13-Feb-2020 06:06:04

The T-value design method enables a more accurate assessment of the positive effect of stabilising geogrids on the bearing capacity of a granular working platform. Ground Coffee Episode 6 - …

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Topics:Temporary Works