In this Paper, an in-situ instrument, the flat dilatometer, is used in the geotechnical investigation to provide the necessary foundation design data for a bridge.

• 本文结合苏州-南通（苏通）长江公路大桥建设的实际，运用扁铲侧胀仪(DMT)，对桥梁地基的有关岩土参数进行了现场试验研究。