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Silbury's structural integrity
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Pilgrim
Pilgrim
597 posts

Edited Sep 05, 2007, 20:31
Update 16 available....
Sep 05, 2007, 20:30
http://www.english-heritage.org.uk/upload/pdf/Update_16.pdf

Oops! Another void......or is it a crater?

It was clear upon further inspection that material had subsided from beneath this southern edge of the polystyrene infill, and that an area of failed chalk which was left in-situ in 2001 has subsequently collapsed since that date. As a result, a void has been created on the summit, see figure 2. The current volume of this void has been calculated to be in the order of 78m3.


Since that date? Sometime in the last six years? Care to be more precise?
There was no mention of this in Update 11 and subsequent Updates when the plug was being investigated. Wouldn't have something to do with yon digger, would it?

the current void is the result of the disturbances caused by the discovery of the large central void which was created by the progressive collapse of the Merewether and Atkinson tunnels since they were abandoned.


A void caused by a discovery? To me, this is one of two things:

Poor editing / use of English

or

A knock-on effect bought about by the recent discovery of the unfilled large central void (left by Atkinson/Merewether) by English Heritage's current conservation programme, which makes me wonder how stable the Poor Bloody Hill is, and how much unnecessary extra damage is being inflicted upon it. Anyone for grouting?

Peace

Pilgrim

X

PS: What exactly is "failed chalk", and how does it come about?
In reply to:
Silbury's structural integrity (nigelswift)		 Replies:
Re: Update 16 available.... (Littlestone)
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