Services

Site Investigation

Geotechnical Application

MIP/CPT/HPT

Description

1. Membrane interface probe (MIP)

Membrane interface probe (MIP) is a direct push tool used to log the relative concentration of volatile organic compounds (VOCs) with depth in soil.

It has been used for mapping the extent of VOC contamination in the subsurface.

MIP offers many benefits to site investigators:

-Useful for detecting and logging both chlorinated and non-chlorinated VOC contaminants.

-Able to detect contaminants in both coarse and fine grained soils.

-Works in both saturated and unsaturated soils.

-The MIP can be either pushed or driven to depth.

-Standard tool configurations combine the MIP with other sensors for lithology or permeability logging.

-Real time contaminant screening information is generated, allowing field adjustment of the site investigation.

2. Cone penetration test (CPT)

Cone penetration test (CPT) is a common in situ testing method used to determine the geotechnical engineering properties of soils and assessing subsurface stratigraphy.

It can be carried out from the ground surface with a need for a borehole.

Standard velocity: 1 to 2 cm/s

The advantages of CPT are significant in delivering high quality, real time geotechnical results with minimal soil disturbance. CPT offers many benefits to site investigators:

-Fast and continuous profiling.

-Economical and productive.

-Results not operator-dependent.

-Strong theoretical basis in interpretation.

-Particularly suitable for soft soils.

3. Hydraulic Profiling Tool (HPT)

Hydraulic Profiling Tool (HPT) is a real-time profiling technique of soil hydraulic properties. It can be used in fine/coarse grain material, saturated/unsaturated conditions.

HPT offers many benefits to site investigators:

-Select well screen intervals.

-Establish hydraulic conductivity of groundwater on site.

-Measure static groundwater elevations across the site.

-Target zones for injection of remediation material.

-Evaluate properties of unconsolidated materials.

-Examine the electrical conductivity of soil.


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