Case studies

1A The Orchard

A landslip occurred in the rear garden of a residential property in Dorking, Surrey in early 2020 which put a residential property at risk of collapse. 

Project value: £220k

Project start and end date: March 2020 – August 2021

Architect: CampbellReith

Contractor: Optera, Hartmaan Construction, Kent and Sussex Geotechnical

A landslip occurred in the rear garden of a residential property in Dorking, Surrey in early 2020 which put a residential property at risk of collapse. 

CampbellReith were contacted by the client as they were aware of our geotechnical expertise with regards to stabilisation of slope failures within the local area. 

Following the initial client phone call, we immediately stepped in and undertook risk assessments to assess the potential impact the landslip could have on the house.  The first step was then to quickly design and implement some cost-effective temporary emergency stabilisation measures in order to ‘buy some time’ to allow for implementation of permanent remedial measures.

The final design CampbellReith carried out included using a combination of soil nails, horizontal drainage and pre-tensioned mesh to stabilise the failed slope. Micro piles were also incorporated to support a raised decking at the crest of the slope to return the garden to its original level. CampbellReith project managed the remedial works from initial inspections, design and procurement, to the project’s completion.

The project has now successfully been completed and was on time and under budget.  The homeowner can now relax in the knowledge the house has been made stable.   

CampbellReith offered a full suite of consultancy services which included for project management, design, contract administration and construction supervision.

Numerous innovative design techniques were employed including mechanical anchors and pre-tensioned mesh connected to soil nails.

Drainage was carefully designed to keep the groundwater table at carefully controlled levels to manage stability and control settlement.

3D BIM Modelling was used in order to aid in clash detection and to assist in rapid quantification of construction materials. The 3D model produced also allowed us to provide quick and efficient construction support which included reactive design alterations, (required due to construction constraints e.g., subsurface obstructions displaced by the landslip).

We were reactive to problems faced and provided design solutions appropriate to the scale of the project.

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Structural

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Civil

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Geotechnical

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