Taking a subway foundation pit as an example, the application of NS-box system in underground diaphragm wall supporting structure of foundation pit is calculated and analyzed by means of limit equilibrium and finite element numerical simu-lation. The underground diaphragm wall support of NS-box system is compared with the traditional support in terms of technolo-gy and economy, construction speed, construction complexity, application scope and environmental impacts. The results show that the application of NS-box system in underground diaphragm wall support is safe and feasible with remarkable advantages in construction technology and environmental protection.%以某地铁基坑为例,采用极限平衡法和有限元数值模拟对NS-box系统在基坑地下连续墙支护结构中的应用进行了计算和分析,并从技术经济性、施工速度、施工复杂程度、适用范围以及环境影响等方面与传统的地下连续墙支护结构进行对比研究。研究结果表明,NS-box系统应用于地下连续墙结构是安全、可行的,其在施工工艺和环境保护等方面具有明显优势,可应用于基坑地下连续墙支护结构。
展开▼
