(การรับน้ำหนักขึ้นอยู่กับสภาพชั้นดินในแต่ละพื้นที่) This Type of deep foundation system consists of smaller-diameter piles with diameters under 12 inches. For the development of micro piles, the bottom is drilled using A brief casing to stabilize the soil. Just after reaching the predetermined depth, the drill bit is taken out, as well as reinforcement