槽钢在基坑抢险工程中的应用

Application of U-steel in foundation emergency engineering

针对某基坑开挖后建筑物基础施工期间,由于连续强降雨致使基坑外侧土体含水量增大、抗剪强度降低,从而导致基坑支挡结构出现竖向裂缝、基坑平台出现水平通长裂缝的险情,采用槽钢斜撑进行抢险加固治理,实践证明采用该方法加固后的效果良好。

In light of the foundation exterior soil moisture increasing and anti-shearing strength reducing of the foundation excavation during the building foundation construction period owing to the heavy rain, it leads to vertical cracks of the foundation bracing structure and horizontal foun- dation platform cracks. The paper applies U-steel diagonal bracing method for emergency reinforcement and treatment. Practice proves that it a- chieves good effect through applying the above-mentioned method.