(การรับน้ำหนักขึ้นอยู่กับสภาพชั้นดินในแต่ละพื้นที่) Bar That has a Hollow Micropiles are drilled in the earth using a sacrificial drill/grout tip while force grout is poured down the hollow bar Micropiles can even be utilized for retaining wall earth retention, which can be vital in places that may be at risk of landslides. The
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