Digitizing CPT and other data

MiraMap – Digitizing CPT and borehole data

Overview:

Svitzer offers MiraMap cone penetrometer (CPT), standard penetrometer (SPT) and other borehole derived data in the original format, usually hardcopy or graphics file. Many CPT’s are multi-page paper records with traces of tip resistance, sleeve friction and pore pressure as the primary curves. SPT’s and borehole logs have blow counts and saturation percentage information. Often friction ratio, n-value and soil classification data are derived from the basic field data. Bear in mind that the quality of digital output is dependent on the quality of the input paper record – we can only digitize what is on the paper record. Thus any errors on a paper record will carry through to the digital file, unless corrected during digitization. All digital data are offered subject to our MiraMap license agreement.

 CPT-26_Baton Rouge_2011

Example of a paper-based CPT log

Digitizing CPT, SPT and borehole data

Digitizing is offered to purchasers of MiraMap data on a three business day turnaround. In some cases we offer the digital data as an additional product on an off-the-shelf basis. Digital data can then be input to mapping, display and calculation software packages. The digitization interval is determined at encoding to avoid spatial aliasing, unless a sample increment is specified in advance. Bear in mind that the quality of digital output is dependent on the quality of the input paper record – we can only digitize what is on the paper record. Any errors on a paper record will carry through to the digital file, unless corrected or edited during digitization.

Cost estimates

Your cost is based on the number of paper records to be digitized, single page records are charged at $65 – $85 depending on completeness and complexity. Multiple pages increase the single page cost by approximately $50 per page. We offer digitizing of these primary curves from paper records to an electronic format, such as ASCII, LAS or DIGGS.

Custom quotes for volume digitizing are available by quotation from alan@svitzersurveys.com.