anchored-tunnel bracing
anchoring and guniting bracing
arch bridge with bracing
beam-slab bracing system
bracing
支撑
支护
支
拉条
基
基坑
斜撑
撑杆
撑条
加劲
联条
撑块
内
支架
支柱
钢
撑
加强筋
支撑架
基坑支护
背带
料撑方棚
支具治疗
bracing and supporting structure for foundation pit
bracing by reinforced concrete
Bracing Deep Foundation Pit