07-27-2019, 03:38 PM

An extract from Shear Wave Measurements of Deformation Properties of Soil, Colin Peter Abbiss, Imperial College of Science and Technology, August 1983 (213 pgs.)

The arrival time T of the leading edge of the s wave pulse was plotted against distance x … These time distance curves were fitted by the formula … This was carried out by a programmable calculator, the HP 67 see program in Appendix 3, or by computer …

Another calculator program has been written which finds the depth Z corresponding to the distance x and also enables one to find the maximum depth Z for the maximum range x of the survey …

The fits were carried out by calculator program …

The results of fitting the data by calculator are given in Table 2.1C …

The data was fitted by the calculator programs and the results are shown in Tables 2.2A …

A calculator program reduced the number of possibilities …

There are six possible solutions listed in Table 3.2A with 4 in six possible ranges of angle. The correct solution is identified with the calculator program …

A simple calculator program has been written so that the calculation may be undertaken in the field …

APPENDIX 3 - CALCULATOR PROGRAMS…

Thorough & complete.

BEST!

SlideRule

The arrival time T of the leading edge of the s wave pulse was plotted against distance x … These time distance curves were fitted by the formula … This was carried out by a programmable calculator, the HP 67 see program in Appendix 3, or by computer …

Another calculator program has been written which finds the depth Z corresponding to the distance x and also enables one to find the maximum depth Z for the maximum range x of the survey …

The fits were carried out by calculator program …

The results of fitting the data by calculator are given in Table 2.1C …

The data was fitted by the calculator programs and the results are shown in Tables 2.2A …

A calculator program reduced the number of possibilities …

There are six possible solutions listed in Table 3.2A with 4 in six possible ranges of angle. The correct solution is identified with the calculator program …

A simple calculator program has been written so that the calculation may be undertaken in the field …

APPENDIX 3 - CALCULATOR PROGRAMS…

Thorough & complete.

BEST!

SlideRule