Geotechnics - subsoil investigations

Would you like to know how stable your building ground is? Your building has subsided and you would like to know the causes? We’ll find out for you! We offer customized investigations for this purpose. We will work out your specific requirements with you in advance.

In order to determine the properties of the soil, we offer you the following field work:

– Dynamic penetration tests in accordance with DIN EN ISO 22475-1
– Dynamic penetration tests in accordance with DIN EN ISO 22476-2 (DPL, DPM, DPH)
– Compaction checks using dynamic and static plate load tests
– Taking disturbed and undisturbed soil samples
– Creating layer inventories in accordance with DIN 4022/DIN 4023 or DIN EN ISO 14688-1/DIN EN ISO 14689-1
– Carrying out infiltration tests in boreholes or open-end tests (OET)
– Core drillings for sealed surfaces (asphalt/concrete)

This field work is followed by laboratory testing. In our foundation engineering laboratory, we carry out the standard test methods for determining soil physical properties (soil mechanical laboratory tests):

– Sieve analysis
– combined sieve/slurry analysis
– determination of loss on ignition
– determination of consistency in cohesive soils
– determination of water content

The data collection from the field and laboratory is followed by the preparation of short statements (preliminary exploration) or comprehensive structural engineering statements.

We can also carry out an indicative chemical analysis for you from the soil samples obtained – in accordance with the Mantelverordnung 2021 (in particular the Substitute Building Materials Ordinance under the Federal Soil Protection Act or the Landfill Ordinance). This does not replace a declaration for recycling/disposal.

In the event of anomalies, this would be necessary via a pile sampling in accordance with PN98 and subsequent analysis. We will be happy to advise you on this.