$789987$:"How do soil properties influence foundation design and construction methods in civil engineering projects, considering factors like soil type, moisture content, and compaction techniques? Explore the significance of soil bearing capacity and its implications on building stability. Discuss the role of geotechnical surveys in site assessment and decision$-$making. Additionally, analyze common methods for soil stabilization and their effectiveness in mitigating settlement and erosion risks during construction and over the structure's lifespan."