某深厚软土基坑事故分析及抢险加固设计案例

Analysis and reinforcement design case of deep silt excavation accident

通过对深厚软土基坑深层滑移事故的分析以及抢险加固的设计实例,说明基坑支护结构的选型至关重要,针对海相沉积淤泥的触变性和流变性特征明显、工程力学性质极差的特点,应评估支护结构的安全可靠度和施工的可操作性,并对可能出现的险情进行预判,制定相应的应对预案和设计措施。

Through the analysis and reinforcement design case of a deep silt excavation accident, it is indicated that the selection of excavation structures is very important. With regard to the distinct thixotropic and rheological characteristics and poor engineering mechanical properties of the marine sedimentary silt, the safety reliability and practicability of the excavation structures should be assessed. The possible danger should be predicted. The relevant plan and design measures should be formulated.