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Ground Movement Assessment

01. Understand Your Risks

Total and differential settlement may lead to structural defects and in a worst-case scenario, failure of a foundations or floor slab if not suitably mitigated at design stage.

Ground Movement Assessments may be required for:

  • Larger foundations, such as larger pad foundation areas and rafts which may experience differential loading;
  • Earthworks, to understand the settlement implications;
  • Foundations proposed near existing foundations.

02. Understand Your Site

An initial step is for our experts to review all available previous reports.

Where further information is required, we would undertake a detailed ground investigation within the affected area, or across the subject site to determine the ground conditions and allow for geotechnical testing to be undertaken. We would also require information regarding the loading of the proposed foundation(s) and proposed formation levels.

03. Provide Interpretation

Depending on requirements, it maybe feasible to undertake a detailed settlement check based upon project specific assumptions by use of traditional calculations.

However, should the complexity determine, Roberts Environmental will utilise specialist assessment and modelling software, Oasys PDisp, which models Loading Induced Ground Displacement. This software is particularly useful in determining settlement for larger foundations such as rafts, or determining the differential settlement between newly placed foundations in proximity of one another.

04. Provide Advice

The findings of the assessment are then compiled and summarised into a Ground Movement Assessment Report. The report would summarise the findings of the calculations / modelling, confirm the anticipated settlements associated with the project, and determine the overall feasibility of presented proposals.


Performance from
the ground up

1 Croft Stairs
Newcastle Upon Tyne

55 Whitfield Street

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0191 230 4521