本文检视影响连续壁槽沟开挖稳定因子，并以案例介绍采择「调高稳定液之质量与浓度」、「缩小连续壁单元长度、连续壁单元间钢筋不搭接等缩短开挖时间」、「提高稳定液与地下水位之液面差」、「灌浆地盘改良」等兼顾安全与经济性之设计、施工处理对策。

Factors affecting the stability of diaphragm wall trench have been reviewed. Measures and precautions of selecting"enhance the construction quality control","reduce the diaphragm wall construction unit pitch","no reinforcement bar overlay between diaphragm wall units to save the excavation period of trench","increase the height difference between slurry level and ground water level","grouting",etc.to provide a safety and economical counter measures are introduced through two construction cases.