[California] indoor SOG tied into foundation footing/wall – GreenBuildingAdvisor

Hello, community,

my client wants to build an attached addition using 2′ continuous footing with about 2.5′ high concrete wall sitting on top, and a SOG within the foundation perimeter. Per the geotech report, the site has expansive soil and 18″ of soil under SOG will be excavated to be replaced with class-II baserock to minimize the slab cracking. In the structural design, the slab will be tied to the foundation footing/wall instead of a floating one that is typically observed with basement construction. Is “tying the slab to the foundation” acceptable here especially from the perspective of slab cracking?