Maaperäselvitykset

Maaperäselvitykset, meaning soil investigations or site investigations, are crucial processes in construction and land development. They involve systematically examining the soil and bedrock at a proposed construction site to understand its properties and suitability. The primary goal is to identify potential risks and challenges associated with the ground conditions, such as weak soil layers, high groundwater levels, or the presence of contaminants.

These investigations typically begin with desk studies, reviewing existing geological maps and previous reports. Following this, fieldwork is conducted, which may include boreholes, trial pits, and in-situ testing methods like CPT (Cone Penetration Test) or SPT (Standard Penetration Test). Samples are collected for laboratory analysis to determine properties like soil type, strength, permeability, and chemical composition.

The data gathered from maaperäselvitykset forms the basis for engineering designs. It informs decisions regarding foundation types, excavation methods, drainage requirements, and the need for soil improvement or remediation. This proactive approach helps prevent costly construction failures, ensures the long-term stability of structures, and minimizes environmental impact. In Finland, these investigations are a mandatory part of the planning and construction process for many types of projects.