并且对基槽开挖深度进行优化设计，取得了显著的经济效益。
Optimization for excavation depth of foundation trench is carried out and notable economic benefit is achieved.
由于基槽开挖对下卧层残积土的强烈扰动导致强度丧失，造成承台在自重下明显沉降。
The loss of strength due to the strong disturbance of underlaying residual soil by the excavation of foundation trench shall cause obvious settlement of cushion cap with its gravity.
开挖减震槽是降低爆破地震效应的手段之一。
The excavation of vibration-isolating slot is one of the possible measures to reduce the influence of blasting vibration.
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