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The contractor understands his position but has just asked for any advice that may help him build the thing more safely and easily. I was wondering if anyone had experience of building these things and could give any practical advice.

Topsoil over the wrap then erosion matt on top.

I was restricted by the base width available and the height requirements of the bund. It's reinforced so 45 degrees no problem. Just wondering on the safest way to construct the upper layers...

I've designed a 3.50m high reinforced earth accoustic bund, it's got 45 degree slopes and a 1m wide strip along the top. The contractors on site are wondering how to place and compact the soil now it's about 2m high. For H&S reasons they are reluctant to ave any plant running along it (one...

Thanks for the tip. I wouldn't feel comfortable without a platform. It'll need a running surface at the very least. Common sense tells me a 58 tonne rig needs more than just 1.50m of stiff clay between it and oblivion. Might use a secondary higher layer of geogrid as these only generally...

It's driven piles, I'm not sure why they are using such a large rig, they're only 200mm pre-cast sections. The first blow will probably fire the fist section down to bedrock!

I'm reluctant to ignore completely the contribution to resistance that a layer of stiff clay would provide. I will conservatively assume a 1m thick layer of 50kPa clay that would need to be sheared by punch through into the underlying soft clay. I'll also see if the contractor can use a lighter...

Sorry, colloquial English, no slope. Slop. The very soft clay,

I'm looking at a working platform design. There is a stiff desiccated crust (conservative 1.50m thick, Cu 75 to 100kPa) over low strength alluvium (Cu 20kPa). The rig is a heavy one and the loads are quite high (330kPa under extreme loads). The track width is 900mm. My gut feeling is that...