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cab



Joined: 01 Nov 2004
Posts: 32429

PostPosted: Thu Mar 22, 07 1:21 pm    Post subject: Reply with quote
    

Behemoth wrote:
or is it the lane that sinks?


Both. The level of the field rises if it is manured, farmlands do tend to rise... But either way those dry stone hedges end up supporting a hell of a load.

dougal



Joined: 15 Jan 2005
Posts: 7184
Location: South Kent
PostPosted: Thu Mar 22, 07 1:32 pm    Post subject: Reply with quote
    

Soil mechanics.
Surely the lateral thrust is going to greatly depend on the soil characteristics? My expectation is that the lateral force is going to be high for things like clay that would tend to flow of their own accord, and that the force would be lower for self stable piles of rock... (hence gabions, etc) Of course it all gets more intense when one considers added loads on the raised ground, and the actions of water...

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