- à¨ÒÐÊÓÃǨ´Ô¹ , ÊÓÃǨÃѧÇÑ´ , ¤Ó¹Ç³áÅÐÍ͡Ẻ§Ò¹·Ò§´éÒ¹»°¾ÕÇÔÈÇ¡ÃÃÁ
áÅаҹÃÒ¡·Ø¡ª¹Ô´
- ÃѺà¨ÒÐÊÓÃǨ´Ô¹áÅÐÊÓÃǨÃѧÇÑ´¨Ñ´·Óá¼¹·ÕèÀÙÁÔ»ÃÐà·È
- §Ò¹ºÃÔ¡Ò÷ҧ´éÒ¹ÇÔÈÇ¡ÃÃÁ
- ÊÓËÃѺ·èÒ¹·ÕèÁÕâ¤Ã§¡Òçҹ
¡èÍÊÃéÒ§ áÅеéͧ¡ÒâéÍÁÙÅã¹¢Ñé¹§Ò¹ÊÓÃǨàªè¹
- §Ò¹ÊÓÃǨÅѡɳÐÀÙÁÔ»ÃÐà·È Topographic Survey
- §Ò¹ÊÓÃǨàÊé¹·Ò§ Line Route Survey
- §Ò¹à¨ÒÐÊÓÃǨ´Ô¹ Soil Boring ( Wash boring by chopping bit or rotary drilling )
·´Êͺ㹷Õè In-situ Test ( Standard Penetration Test , Cone Penetration Test , Field Vane Shear Test , Kunzalstub Penetration Test )
- §Ò¹·´Êͺ¤Ø³ÊÁºÑµÔ¢Í§µÑÇÍÂèÒ§´Ô¹¨Ò¡ºèÍ·´Êͺ (Test pit) àªè¹ Compaction Test , California Bearing Ratio (CBR.) , Field Density Test , etc.