Analysis

Samples taken during site investigations are sent for analysis to determine their chemical content and their geotechnical properties.  Both soil and water can be sampled and analysed.

• Chemical Analysis
• Geotechnical Analysis

Concrete Coring

Coring through concrete hard standing up to 1.00m thick in diameters of 150mm, 200mm, 250mm and 300mm.

This leaves a neat and tidy hole for drilling casing to fit down in order to facilitate boring in areas of hard standing.

Reporting

We offer various reporting options which include the following:

• Phase II Factual Report
• Phase II Interpretive Report
• Remediation and Validation Report for Cover Systems
• Validations Report for Gas Protection Systems

Trial Pitting

Trial Pitting involves the mechanical excavation of “Trial pits” using JCB 3CX excavators or similar to excavate through the shallow subsoils beneath the surface to investigate the ground conditions.  Trial pitting is used to facilitate chemical and geotechnical sampling and to gain a profile of the sub surface ground conditions.

Trial Pitting can be used for purposes such as investigating contaminated land, geotechnical investigations and mine shaft location.  It can also be used for the location of buried structures such as basements and former foundations via trail trenching.

Rotary Drilling

Rotary drilling is used when drilling through bedrock. Rotary drilling can be carried out as open hole, wireline or rotary cored. GeoCon utilise rotary open hole techniques for site investigation, mining investigation, and geothermal drilling.

GeoCon utilise rotary cored boreholes when more detailed information is required regarding the underlying bedrock and its physical characteristics. GeoCon also use wireline techniques subjected to the individual requirements of the project and the client.

Hand Pitting

Hand Pitting can be used when a mechanical excavator would not be practical such as digging adjacent to existing buildings to gain a picture of previous foundation types.

Hand Pitting can also be used during the validation of a cover system.

Cable Percussion Drilling

Cable Percussion Drilling or Shell and Auger as it is commonly known is a technique that boasts more drilling capability than a window sampling machine.  Cable Percussion Drilling can reach depths of 30.00m plus through superficial drift deposits.

Cable Percussion Rigs are used to bore through soft ground down to rock head utilising a casing system to prevent the fall in of soft materials and running sand. Cable Percussion Drilling can be done in a range of diameters which include 150mm, 200mm, 250mm, and 300mm.

This technique can be used for investigating contaminated land facilitating sampling, geotechnical investigations again facilitating sampling and in situ testing such as SPT’s, and for the installation of ground gas and ground water monitoring wells.

Environmental monitoring

Environmental monitoring is carried out as part of a thorough site investigation and generally consists of the following:

• Gas Monitoring
• Groundwater Monitoring
• Surface Water Monitoring