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Frequently Asked Questions (FAQs)

The duration of a geotechnical investigation varies depending on the project complexity and site conditions. Smaller projects may take a 3-5 weeks, while larger projects can take 2 months.

The cost of a geotechnical investigation depends on various factors, including site size, complexity, and the extent of required laboratory testing. 

A typical geotechnical investigation involves the following phases:

  1. Site reconnaissance: Initial site visit to assess surface conditions, topography, and potential geological hazards.
  2. Desk study: Review of existing geological maps, borehole logs, and other relevant data to gain background information.
  3. Field exploration: Conducting field tests such as borehole drilling, test pitting, and in-situ testing to collect soil and rock samples.
  4. Laboratory testing: Analyzing soil and rock samples in a laboratory to determine their engineering properties (e.g., strength, compressibility, permeability).
  5. Data analysis and interpretation: Analyzing field and laboratory data to assess site conditions and identify potential challenges.
  6. Report preparation: Preparing a comprehensive geotechnical report summarizing findings, recommendations, and design parameters.

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 We will communicate with you regularly through email, phone, and project meetings to ensure that you are informed and up-to-date on the project’s progress.

Geotechnical investigations are essential for a wide range of projects, including:

  • Residential buildings
  • Commercial buildings
  • Industrial facilities
  • Infrastructure projects (roads, bridges, dams)
  • Mining operations
  • Civil engineering works

Failing to conduct a geotechnical investigation can lead to various risks, including:

  • Foundation failures: Inadequate foundation design can result in structural damage and safety hazards.
  • Settlement issues: Differential settlement can cause cracking and damage to buildings and infrastructure.
  • Slope instability: Unstable slopes can lead to landslides and erosion.
  • Groundwater problems: Unexpected groundwater conditions can affect construction and cause waterlogging.
  • Cost overruns: Unforeseen site conditions can lead to additional costs and delays.

We use a range of methods, including drilling, trenching, and geophysics, to gather data on subsurface conditions.

When selecting a geotechnical company, consider the following:

  • Experience and expertise: Look for a company with a proven track record in South Africa and experience in handling diverse soil and rock conditions.
  • Quality assurance: Check if the company adheres to industry standards and has implemented quality management systems.
  • Client references: Request references from previous clients to assess the company’s performance and reliability