A site investigation involves the collation of desk study information; appraisal of the data; assessment of the ground conditions; and the provision of an interpretative report .
What is meant by site investigation?
A site investigation is the overall process for the collection of information, appraisal of data, assessment and reporting . This data must be gained competently, in a timely manner and to a degree which is adequate and appropriate to each stage of design and development.
What is involved in a site investigation?
A site investigation involves the collation of desk study information; appraisal of the data; assessment of the ground conditions; and the provision of an interpretative report .
What is the purpose of a site investigation?
The objective of a site investigation is to gather the information needed to carry out the risk assessment , in order to be in a position to assess the presence and significance of contamination of land.
What are the 3 stages of site investigation?
A basic three stage site investigation scheme is put forward; stage I, which consists of “site exploration”, is preliminary; stage II, “site investigation” , is detailed; both these stages are more or less completed before construction starts; stage III, “foundation investigation”, is carried out during construction.
What are the stages of a site investigation?
Site investigation can be broadly classified into four stages: reconnaissance, data and map study, in-depth investigation and laboratory testing .
How long do site investigations take?
Usually, they take three to four weeks to allow time for laboratory testing and mobilisation of drilling crews or excavators.
What is the importance of site characterization?
Site characterization provides information that is required for conducting risk assessments and for designing and implementing remediation systems. The primary objectives of site characterization are to identify the nature and extent of contamination .
What is a ground investigation report?
A Ground Investigation is an intrusive investigation to establish the soil and rock profile and parameters for Geotechnical and Environmental purposes .
Why is soil investigation necessary?
Soil Investigation or geotechnical investigation is a procedure that determines the stratigraphy (study of rocks) and relevant physical properties of the soil underlying the site . This is done to ensure that this substructure, which is eventually going to hold up homes, is safe and enduring.
What is the first stage of site investigation?
Site reconnaissance is the first stage of site investigation. In this stage, visual inspection of the site is done and information about topographical and geological features of the site are collected.
What is a site investigation report?
Site Investigation is the process of collecting information, assessment of the data and reporting potential hazards beneath a site which are unknown . Site Investigation is grouped into the following stages: ... Detailed Site Investigation. Supplementary investigation and construction control.
How many boreholes are required for soil investigation prior to a new construction?
Finally, apart from small structures, the position of each structure need to be explored with 3 boreholes to determine strata dip accurately.
What is a Phase 2 site investigation?
A Phase 2 Site Investigation is the second stage of a phased Contaminated Land Assessment and involves intrusive excavation of the ground . It is often required by local planning authorities to discharge planning conditions, remove objections and support planning applications.
How much does a site investigation report cost?
The cost of a soil investigation depends on the size of the project and whether there are planning conditions to be satisfied. A desktop study of a site could cost around £600 plus VAT. A basic soil investigation costs around £1,500 plus VAT , scaling up from there depending on the size and complexity of the project.
What is an intrusive investigation?
An intrusive investigation also referred to as soil sampling , soil testing etc is more complex than simply putting soil into a jar or a bag! ... It can vary from a simple exercise involving hand sampling of shallow soils to investigations to assess risks to groundwater and from landfill gas.
