tech1005
Only just noticed your question of a few days ago, hope you still need an answer.
The stability of a slope or loads on a retaining wall are generally governed by the long term soil parameters. The short and long term strengths of a free draining granular soil are substantially the...
Jaelle
I assume that you are talking about a group of piles in a cohesive soil. Tomlinson in his book 'Pile design and construction practice', suggests that it should be assumed that the pile group behaves as a block foundation with a certain amount of flexibility, depending on the capping...
The critical factor you have to assess is what is the risk of undertaking the re-grading of the backyard. If a failure of the slope would have significant effects on adjacent structures you would need to adopt a high factor of safety on any assessment. If local failure of the cut slope would...
We need some assistance on deciding what levels of contaminants are acceptable for developments on potentially contaminated land. This is from a human health point of view and will obviously depend on the precise end use, eg residential with or without gardens, commercial etc.
The guidelines...
Using a modified PI is a standard procedure for assessing, for example, the heave potential of a mixed soil.
I think it is better to have an actual number to work with rather than an assessment based on a description. If you are determining the PI according to BS1377, the test is undertaken on...
There is a bit more info in CIRIA Report PG5, 'Piling in Boulder Clay'. This is quite an old publication (1978)and there is a large scatter when looking at a relationship between liquidity index and shear strength of a Till which by its very nature has variable proportions of granular and...
Jicker 23
As you are uk based, you may want to look up an old CIRIA publication which gives a correlation between liquidity index and undrained shear strength. The publication is CIRIA Special Publication 25, dated 1983, 'Site Investigation Manual'.
Hope this is of assistance.
Is there a tree close to the corner of the house that is moving?
In winter the moisture content of the ground would increase causing the ground to swell while in spring and summer the ground would dry out, any trees causing additional desiccation and the ground shrinking. This would be repeated...
