2210 3%4 N Grand Ave Unit# WCC01 - REV 1 - Plan

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Geotechnical Report of Subsurface Investigation LA3642 SCE LAVETA SUB CS (LA23642A) Job Number: 24125796 April 29, 2024│7 Caisson (Drilled Shaft) The caisson (drilled shaft) will achieve compressive (downward) and tensile (uplift) resistance through skin friction along the side of the shaft. In addition to skin friction, bearing resistance at the caisson’s tip will contribute to compressive capacity. The lateral modulus and 50 percent strain values can be used to evaluate the lateral service load and deflection behavior of the caisson (drilled shaft). We recommend the values given in the table below be used for this project. Please note the tip bearing capacity and skin frictions are ultimate values. Appropriate factors of safety or resistance factors should be used. Caisson (Drilled Shaft) Parameters Depth (ft) Net Ultimate Tip Bearing Capacity (ksf) Ultimate Skin Friction1 (ksf) Lateral Modulus (pci) ε50 (in/in) 0.0 – 3.0 -- -- -- -- 3.0 – 5.0 -- 0.2 90 -- 5.0 – 9.0 -- 0.4 90 -- 9.0 – 12.0 -- 0.5 225 -- 12.0 – 21.5 -- 1.1 225 -- 21.5 40 1.1 225 -- 1. We recommend the skin friction be ignored for the top 3 ft of the caisson LIMITATIONS OF REPORT This report has been prepared in accordance with generally accepted geotechnical engineering practices for the specific application of this project. The conclusions in this report are based on the applicable standards of our practice in this geographic area at the time this report was prepared. No other warranty, expressed or implied, is made. The analyses and conclusions submitted herein are based, in part, upon the data obtained from the subsurface exploration performed for this analysis. The soil and ground water conditions can vary across the site. Opinions and conclusions are subject to change if new or additional information is submitted for review. 2210 3%4 N Grand Ave Unit# WCC01 - 1011184045/30/2024