Keller geotechnical construction

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BLACKLAND

Injection systems

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BLACKLAND

Swell from CPT

Potential swell at each foot, from tip resistance and sleeve friction. BLACKLAND reads tip resistance and sleeve friction from a CPT file, converts both to tsf, and plots the swell from the correlations. Method 1 is Midlothian. Method 2 is Hampton Inn. Method 3 is HEB Irving. Blackland is the average of the methods at that foot, weighted by the number of tests.

How to use it

  1. Upload one sounding or a whole set. Use a CPT file, or a CSV with depth, tip, and sleeve. Save an Excel file as CSV. A PDF is not read.
  2. Read each depth. Each depth shows Method 1, Method 2, Method 3, and Blackland. The plot is swell versus depth for the three methods and Blackland. Hide notes takes the Note column off the sheet and the print. Show notes puts it back.
  3. Open Title Page and Cover Letter. Choose a cover, a letter, both, or neither, then close it when the words are in. The date is filled in and you can change it. Each name and the address keep their place. Paste the letter in Letter. Put the signature in Signature. Hide takes a box off the page. Print PDF for the sounding on screen. Print every CPT starts each sounding on its own page. The three plots share one page.

The equations, the weights, and the limits are on Info.

Title Page and Cover Letter

Choose one, both, or neither. The instructions stay outside the letter. Close this panel when the words are in.

Soundings

A CPT file, or a CSV with depth, tip, and sleeve. Add as many files as you need. Save an Excel file as CSV first. A PDF is not read.

Expansive soil chart

Cone resistance and skin friction.

This chart is Ismail and Gasmelseed, 1988. Upload the raw sounding. Blackland reads the tip and the sleeve and plots them in kilograms per square centimeter. The zone is how expansive that chart says the soil is.

How to use it

  1. Add a pass for each sounding. There is no limit on the number of passes. Remove takes that one chart off. Clear takes every chart off.
  2. If that file name is already on the page, or every reading matches a chart already here, the page leaves that file off and says why.
  3. Type the chart name. The page suggests CPT before water injection, or CPT after pass 1. You can type any name.
  4. Read the zone at each foot. Low, medium, high, or very high.
  5. Print all prints two pages for each chart. The first page is Figure 1 with the chart. The second page is Table 1 with the notes. The next chart is Figure 2 and Table 2.

Each pass is one more sounding. A file already on the page, or a file with the same readings, stays off.