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<br /> <br /> <br /> <br /> <br /> <br />3rd & Broadway, Santa Ana, CA <br />Volume 2 - Structural Calculations June 17, 2024 | Project # S21043.00 <br /> pg. 84 <br />5.2 SOIL BEARING PRESSURE ANALYSIS AND SOIL SUBGRADE REACTION <br />5.2.1 SOIL SUBGRADE MODULUS <br />The soil vertical subgrade modulus for the mat foundation is determined based on the guidelines set forth <br />in the geotechnical report dated Sep. 16, 2021. Separate values are provided for gravity and dynamic <br />moduli. The soil modulus used for gravity loads is 30pci. The soil modulus for total loads including both <br />gravity and seismic loads is 100pci. <br /> <br /> <br /> <br /> <br /> <br />