Bored tunneling is a method used to create underground tunnels by excavating soil and rock using a specialized machine called a tunnel boring machine (TBM). This technique is often employed for constructing subways, water pipelines, and other underground infrastructure. The TBM advances by cutting through the ground, while simultaneously installing tunnel linings to support the structure. This method is preferred in urban areas because it minimizes surface disruption and reduces noise compared to traditional digging methods. Bored tunneling is efficient and can navigate complex geological conditions, making it a valuable technique in modern civil engineering projects.