In House Design Team
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- Houses
- Extensions
- Conservatories
- Retaining walls
- Subsidence
Established in 1978 we have been providers of foundation solutions for all the major insurance companies, dealing with traditional underpinning for subsidence.
We have addressed the environmental issues by using the latest state of the art rigs incorporating noise reduction techniques and anti-vibration methods.
Our in house structural engineer will design the piling method most suitable to your ground conditions.
Reinforced concrete ground beams or raft construction.
Subsidence/underpinning
A scheme can be designed to the approval of your insurance company and loss adjustor.
All Calculations & Designs will be submitted to the local authority for building regulation approval.
Pile log's are recorded and submitted to finalize building regulations.
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Estimation of Pile Load Capacity
Using Static Design Formula
(a) Skin Friction
ð vdzPsL
Where:
ð= Interface Angle
Ks = Friction Coefficient
Ps =Shaft Perimeter
L= Length
ðv =Effective Vertical Stress
S.W.L= Safe Working Pressure
F1 & F2 = Factors of Safety
(b) End Bearing
U.E.B= Nq γ' AB
Where:
Nq= Bearing Capacity Factor
γ'= Effective Owerburden Pressure
As = Base area
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