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.

What are the methods of geotechnical investigation?

The geotechnical investigation and evaluation should include a balance of methods to acquire and evaluate subsurface information, including drilling and sampling, laboratory testing, geophysical surveys, cone penetration testing, and pressuremeter testing.

How do you conduct a soil investigation?

The general requirements for soil investigations are as follows: Drilling, sampling, and testing a 120 m or deeper hole below the seabed. Carry out relevant seabed in situ testing; for example, performing a cone penetration test to a maximum of 10 m depending on soil conditions.

What is included in a typical soils investigation report?

The results of soil exploration, including field investigation and testing, as well as the laboratory test results and their analysis, along with suitable recommendations, are presented in the form of a soil investigation report. As such, the soil investigation report should be prepared with utmost care.

How long does a ground investigation take?

In some circumstances we have been able to produce a Phase 2 site investigation report in one week. Usually, they take three to four weeks to allow time for laboratory testing and mobilisation of drilling crews or excavators.

Why are ground investigations done?

Geotechnical investigations obtain information on the physical properties of soil, rock and/or shallow groundwater around a site to assess suitability of material for construction and to allow accurate design of earthworks and foundations.

What is soil testing?

In agriculture, a soil test commonly refers to the analysis of a soil sample to determine nutrient content, composition, and other characteristics such as the acidity or pH level. As soil nutrients vary with depth and soil components change with time, the depth and timing of a sample may also affect results.

What is the importance of site investigation and soil tests?

The purpose of a site investigation is to identify the ground conditions which might affect the proposed development. It enables better understanding of the site and immediate surroundings, which will enable safe and economic developments.

What are the four items you are trying to figure out when you conduct a soil sample?

Soil Test Results. After the soil-testing lab receives your sample, it dries the soil and conducts tests to determine the soil pH, humic matter content (the chemically active portion of organic matter), nutrient content, and exchange capacity (ability to hold nutrients).

How much does a soil engineer cost?

Average Construction Soil Testing Cost

Average Cost $2,500
High Cost $5,000
Low Cost $1,000

How much is soil testing in the Philippines?

Schedule of Fees and Charges for Laboratory Testing of Construction Supply


What does a site investigation include?

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.